JOINT STOCK COMPANY DRILLING SYSTEMS well construction 2011

JOINT STOCK COMPANY «DRILLING SYSTEMS» well construction 2011

Addition: technical characteristics of drilling rigs

MOBILE DRILLING RIGS TZJ 20, TZJ 30 ТZJ 20 DBS ТZJ 30 DBS Nominal drilling depth, m 2000 3000 Maximum hook load capacity, k. N 1250 1800 Total capacity of drilling pump, HP. 2 х650 Drill line diameter, mm 28 32 Rig useful height, m 36 38 Working floor height, m 6 6 Draw work capacity, HP 650 1000 Rotary table diameter, mm 560 Swivel SL 160 SL 225

DESCRIPTION OF EQUIPMENT SPECIFICATIONS DRILLING RIG – GENERAL SPECIFICATIONS TZJ 20 Name and Serial Number of Drilling Rig Manufacturer Drive Arrangement of drive Depth of drilling with 114 -mm drill pipes TZJ 20 China, Diesel Cardan shaft and chain reducer 2000 m ZJ 30 DBS China, Diesel Cardan shaft and chain reducer 3000 м China, JC 21 F Diesel САТ 3412 475 Kwt 125 t (1250 к. N) Brake tape WCB 224(EATON) water-cooled China, JC 28/11, Diesel 410 x 2 k. W 410 x 2 k. W (5 х6) 280 t (2800 k. N) Brake tape WCB 324(EATON) water-cooled China, ТС 125 Load capacity 125 t Number of sheaves: : 5 шт Drilling line diameter: 28, 6 mm Sheave diameter: 1 unit of 915 vv Sheave diameter: 4 units of 760 mm China ТС 180 Load capacity 180 t Number of sheaves: 7 Drilling line diameter: 32 mm Sheave diameter 915 мм- 5 units Sheave diameter: 760 мм-1 unit ZJ 30 DBS DRAWWORKS Manufacturer Model, type Drive Rated input Power supplied to drawworks Load capacity at line string-up 5 х 4 Main brake Auxiliary brake CROWNBLOCK Manufacturer: Model:

HOOK BLOCK Manufacturer Model Outside diameter of sheaves Number of sheaves Load capacity Compatible with rated weight load and size of derrick crown block China, YG 160 B 760 mm 4 125 t Compatible with rated weight load and size of derrick crown block China, YG 180 915 мм 5 180 t Compatible with rated weight load and size of derrick crown block SWIVEL Rated load is compatible with derrick and rotary table Rated load is compat. with derrick and rotary table Manufacturer Model Static load capacity Operating pressure China, SL-160 t 35 MPa China, SL-225 225 t 35 MPa Manufacturer Model Length Permissible load Number of sets Russia, forged and having sufficient length ШБД-125 1800 mm 125 t 1 set Russia, forged and having sufficient length ШБД-220 1800 мм 220 t 1 set DERRICK China, JJ 15836 K-shaped with open front face 125 t China, JJ 18038, Telescopic, 2 -section with open front face (5 х6) 180 t 36 m 3 х6 m 6 m Telescopic hydrocylinders 38 м 3 х6 м 6 м Telescopic hydrocylinders According to АРI SPEC 9 B. Line diameter : 28, 6 mm According to АРI SPEC 9 B. Line diameter : 32 mm China, JZG 20 Max. Line pull- - 200 к. N Rope diameter- - 28, 6 mm China, JZG 34 A Max. Line pull - 280 к. N Rope diameter- 32 мм BAILS Type Maximum hook load at line string-up 5 х4 Height of derrick (from supporting surface of crownblock) Size of drilling floor (derrick legs axes) Height of drilling floor Derrick erection DRILLING LINE DEAD LINE ANCHOR MANUFACTURER MODEL

DERRICK FLOOR EQUIPMENT ROTARY TABLE MANUFACTURER MODEL Russia Р-560 with ПКР Mechanic drive Maximum opening 560 mm Static table load 250 t Speed of rotation 0… 250 rev/min Transmission: reduction gear with drive shaft through air line coupling Russia Р-560 Mechanic drive Maximum opening 560 mm Static table load 2500 k. N Speed of rotation 0… 250 rev/min Transmission: reduction gear with drive shaft through air line coupling BUSHING FOR ROTATION OF KELLY JOINT Available Quadrangular kellies, for a main hole of well and small diameter hole by 2 units of each size. Kelly saver sub should be of non-rotatable type Manufacturer: China Size 140 х140 mm and 89 х89 mm POWER CYLINDERS FOR UNSCREWING DRILL PIPES CONNECTIONS China, Hydraulic 2 complete sets DRILL PIPE ELEVATORS 2 units of each standard size КМ: КМ 60 -125. КМ 73 -125. КМ 89 ПН-200. КМ 114 ПК-250. DC ELEVATORS 2 units of each standard size КМ: КМ 89 -125 for DC of OD 102 mm. КМ 178 -170 for DC of OD 178 mm. PRODUCTION STRING ELEVATORS 2 units of each standard size КМ: КМ 102 -125 КМ 114 -140 КМ 146 -320 КМ 168 -320 KELLY JOINT

DRILL PIPE/ CASING TONGS АКБ-ZQ 203 -100 type –For drill pipes ( 89 -219 mm) 100 KN/m ГКШ-4000 For casing (89 -500 mm) 33 -200 KN/m with torque gage АКБ-ZQ 203 -100 type –For drill pipes ( 89 -219 mm) 100 KN/m ГКШ-4000 For casing (89 -500 mm) 33 -200 KN/m with torque gage POWER SLIPS FOR DRILL PIPES / DRILL COLLARS, CASINGS ПКР-560 DRILL COLLAR SAFETY CLAMPS Available for all diameters of drill collars PETRO LINE ДЕЛ 140 -4 П POWER UNIT Manufactured in the USA САТ-3412 – 1 unit. USA Drawworks drive. Diesel САТ 3408 -2 unit. 396 к. W, Pump drive. Diesel САТ 3412 -2 units. 475 к. W, GENERATING UNITS AND ROOM FOR GENERATING UNITS Manufacturer : USA Type: Diesel-electric units Rated power of motor: 292 KW Number of units 2 Frequency 50 Hz Voltage 380 V Total power 584 KW Additional 125 k. W reserve diesel enginel-generator available FUEL TANKS Fuel tank 2 х 25 m 3 DRILL PIPES WITH OUTER DIAMETER 4 1/2"х 0, 362 (114 х 9, 19) GOST Р 50278 -92 Weight 30, 0 kgf/m (wall thickness of 9, 19 mm) Number of joints: 300 Total length : 2500 m Type of connection box and pin З-122 New Manufacturer: Russia SHORT JOINTS OF DRILL PIPES WITH OUTER DIAMETER 4 1/2 " Length – 1, 5 m – 1 Length – 3 m – 1 Length – 4, 5 m – 1 WEIGHT INDICATOR DRILL PIPES

DRILL PIPES WITH OUTER DIAMETER 3 1/2" х 0, 368 (89 х 9, 35) ТУ 14 -161 -219 -2004 Weith 23, 0 kgf/m (wall thickness of 9. 35 mm) Number of joints: 540 Total length: 4500 m Type of connection: З - 86 New Manufacturer: Russia SHORT JOINTS OF DRILLING PIPES WITH OUTER DIAMETER 3 1/2 Length – 1, 5 m – 1 Length – 3 m – 1 Length – 4, 5 m – 1 DRILL COLLARS 8" (203, 0) OD 203 mm, ID 80 mm. Weight 214 kgf/m Type of connection З-171 Total length: 50 м Keyway DRILL COLLARS 7" (178, 0) OD 178 mm, ID 80 mm. Weight 156 kgf/m Type of connection : З-147. Total length: 150 м Keyway DRILL COLLARS 4 1/4" (108, 0) OD 108 mm, ID 51 mm. Weight 63 kgf/m Type of connection : З-86. Total length: 150 м Keyway OD 108 mm, ID 51 mm. Weight 63 kgf/m Connection type : З-86. Total length: 150 м Keyway CROSSOVER SUBS Quantity: 3 units of each size Detailed specifications are given below: 7 5/8" reg. pin X 6 5/8" reg. box X 1, 22 m 7 5/8" X 6 5/8" X 1, 22 m 6 5/8" reg. pin X 4 1/2" IF box X 1, 22 m 6 5/8" X 4 1/2" 1. 22 m 4 1/2" IF pin X 4 1/2" IF box X 1, 22 m 4 1/2" X 1, 22 m 3 1/2" IF pin X 2 7/8" IF box X 1, 22 m

BIT SUBS Delivery of complete sets of API standartized bit subs for all Contractor’s pipe types. Min length of each sub – 3 feet. Min quantity – 3 units of each size. There is a hole drilled a for reverse valve. EQUIPEMENT FOR BITS’ SCREWING ON AND OFF EQUIPMENT FOR RIH OF CASING AND TUBING ELEVATORS FOR RIH / PU OF CASING WITH SIDE LOCK Quantity: 3 units of each size Detailed specifications are given below: 7 5/8" reg. box X 0, 915 м 7 5/8" X 7 5/8" reg. X 0, 915 м 6 5/8" reg. box X 7 5/6" reg. box X 0, 915 м 6 5/8" X 7 5/8" X 0, 915 м 4 1/2" reg. box X 4 1/2" IF box X 0, 915 м 4 1/2" X 0, 915 м 3 1/2" reg. box X 3 1/2" IF box X 1, 22 м 3 1/2* X 3 1/2" X 1, 22 м Available For bits of 24". 17 -1/2", 14 -3/4", 12 -1/4", 9 -7/8", 81/2" and 6" Available For bits of 24". 17 -1/2", 14 -3/4", 12 -1/4", 9 -7/8", 8 -1/2" and 6" Equipment for loading/unloading, transportation and RIH of casing is ready and in complete sets. Manual rotating and hydraulic tongs ГКШ-4000 with the slip from 89 to 500 mm. Manufactured in Russia. Equipment for loading/unloading, transportation and RIH of casing is ready and in complete sets. Manual rotating and hydraulic tongs ГКШ-4000 with the slip from 89 to 500 mm. Manufactured in Russia. Quantity: 3 units of each standart size Manufactured in Russia Model: (elevators of КМ type) Casing size (inches): from 16 ¾ " to 7" Rated load capacity, t 16 ¾ " 148 t: 12 ¾ " 148 t: 9 5/8 " 302 t: 7" 220 t:

POWER SLIPS ПКР-560 CASING AND TUBING GAGE Available 1 set for each standard size of casings CASING THREAD PROTECTOR Available Mud pump 8 Т-650, including spare parts Capacity -475 k. W; max pressure – 32 MPA; dimensions -4500 х 2000 х 1500 мм; weight-12, 5 t. -2 units. Mud pump 8 Т-650, including spare parts Capacity -475 k. W; max pressure – 32 MPA; dimensions -4500 х 2000 х 1500 мм; weight-12, 5 t DRILLING MUD CIRCULATION SYSTEM MUD PUMPS MUD TANKS Number of mud tanks (including treatment unit): 4 Net volume of drilling mud: not less than 270 м 3 Volume of tanks for liquid chemical agents: 3 m 3 WATER TANKS Water tank volume: 140 m 3 SHALE SHAKERS Quantity: 2 sets Manufacturer: Russia Model: СВ 1 -Л Productivity 0, 045 м 3 /sec Quantity: 2 sets Manufacturer: Russia Model: СВ 1 -Л Productivity 113 м 3 /час HYDROCYCLONE Quantity: 1 sets Manufacturer: Russia Model ГЦК – 360 Delivery pump capacity: 55 k. W Productivity 65 м 3/hr DESILTER Manufacturer: Russia Model: ИГ 45 м Delivery pump capacity: 55 k. W Productivity 45 м 3/hr CENTRIFUGE Manufacturer: Russia Model: ОГШ 511 Productivity 45 м 3/hr MIXERS Manufacturer: Russia Mechanic ПМ-875 Hydraulic Р= 6, 4 MPAа, 1 unit Manufacturer: Russia Mechanic type ПМ 875 -5 units Hydraulic Р= 6, 4 MPa, 15 units GAS SEPARATOR FOR DRILLING MUD Gas Separator-settler: Manufacturer: Russia HORIZONTAL VACUUM GAS SEPARATOR VERTICALLY INSTALLED IN DERRICK vacuum gas separator Manufacturer: USA, Model: DERRICK, VACU-FLO 1200, Capacity: 272 m 3 /hour VERTICALLY INSTALLED IN DERRICK vacuum gas separator Manufacturer: Russia Model: КАСКАД - 40 . Productivity: 40 м 3 /hr

PRESSURE MANIFOLD (STANDPIPE ) HIGH PRESSURE MUD LINES MUD HOSE FISHING TOOLS REVERSE CIRCULATION JUNK BASKET JUNK MILLS Operating pressure (psi): 5000 Operating pressure 5000 psi. Manufacturers : China Khongkhua Operating pressure: 5000 psi Manufacturers : Khongkhua Operating pressure: 5000 psi Made in Russia : Spears per ТУ 39 -01 -10 -494 -79 Nonreleasing spears ТУ 26 -16 -22 -77 Releasing spears ТУ 39 -01 -10 -716 -81 Segment –type grapple ТУ 26 -02 -221 -75 Die collars DОСТ 8565 -81 Fishing taps DОСТ 8483 -81 Mills 6 -16 -60 -70 , ТУ 26 -16 -63 -78 Pilot mills ОСТ 26 -16 -1623 -82 Bottom hole mills ОСТ 26 -02 -233 -70 Cutting and grinding mills ОСТ 26 -02 -1296 -75 Impression blocks ТУ 26 -16 -102 -79 Contractor will provide a complete range of fishing tools and devices to fish any well equipment of Contractor. Manufacturer: Russia Number: 1 of each type for each size of well according to the specifications. Manufacturer: Russia Number: 1 of each type for each size of well according to the specifications

Number : one unit of each type Manufacturer and Model: Russia Type: LT 143, LT 206, LT 245, LT 273 Outside diameter of the body (inches): 5 -7/8", 81/8"(9 -W 810 -3/4" Outside diameter of the wall hook (inches): 15", 12" Length of the extension sub (inches): 3 feet Top sub connection: NC 38, NC 50, 4 ½, IF 51/2 FH, 7 1/2" Diameter of fishing jobs target (spiral thread) (inches): +3 1/2" 4 -3/4", +5" 6 1/2" 6 5/8" 6 3/4" 7", +7 3/4" 8", 9". Max. diameter of fishing jobs target (junk basket) (inches) 4 -1/2", 5 -1/2", 7 -7/8". OVERSHOT Number : one unit of each type Manufacturer and Model: Russia Type: LT 143, LT 206, LT 245, LT 273 Outside diameter of the body (inches): 5 -7/8", 8 -1/8"(9 W 810 -3/4" Outside diameter of the wall hook (inches): 15", 12" Length of the extension sub (inches): 3 feet Top sub connection: NC 38, NC 50, 4 ½, IF 5 -1/2 FH, 7 1/2" Diameter of fishing jobs target (spiral thread) (inches): +3 1/2" 4 -3/4", +5" 6 1/2" 6 5/8" 6 3/4" 7", +7 3/4" 8", 9". Max. diameter of fishing jobs target (junk basket) (inches) 4 -1/2", 5 -1/2", 7 -7/8". JUNK SUB (BOOT BASKET) Manufacturer и Model: Russia Number: 1 of each type for each size of well according Number: 1 of each type for each size of well to the specifications according to the specifications SAFETY JOINT Manufacturer: Russia Safety joints of each type with 4 -1/2" IF box X pin complete with guide thread connection (for unscrewing) Manufacturer: Russia Safety joints 2 units of each type with 4 -1/2" IF box X pin complete with guide thread connection (for unscrewing) FISHING MAGNET Manufacturer: Russia Well sizes: 17 -1/2", 14 -3/4", 12 -1/4", 9 -7/8", 8 -1/2" IMPRESSION BLOCKS Manufacturer: Russia, Type of impression blocks - lead, one for each size of well Manufacturer: Russia, Type of impression blocks - lead, one for each size of well DITCH MAGNET To catch metal grit, which come through flow lines Made in Russia HYDRAULIC RELEASING SUB FOR FISHING JOBS Manufacturer: Russia Model: KXJ 80 KXJ 62 Connection: 6. 5/8 R NC 46

CASING SPEAR Made in Russia for all casing sizes to be used BLOWOUT PREVENTOR EQUIPMENT According to well drilling project Manufacturer: Russia Universal hydraulic blowout preventer Kill manifold - 1 set Separator unit - 1 set Pipes - 1 set Master panel - 1 set Auxiliary console - 1 set Manifold - 1 set Choke manifold - 1 set All metering devices on the drilling rig, regardless of their position on the drilling rig platform, are explosion-proof. PETROLINE system is installed. DRILLING RIG INSTRUMENTATION Depending on well type and client’s requirements Drilling parameters deviations’ metering device Depending on well type and client’s requirements EQUIPMENT FOR WELDING AND METAL CUTTING AC Transformer. Gas cutter AIR COMPRESSORS Manufacturer: Russia Model includes 2 units of Screw compressors ДЭН 45, with productivity of 7, 5 m 3. /min. under pressure of 1 MPa Buffer air collector: 2 units х2 м 3 Manufacturer: Russia Model includes 2 units of Screw compressors ДЭН 45, with productivity of 7, 5 m 3. /min. under pressure of 1 MPa Buffer air collector: 2 units х2 м 3 DRILLING MUD CONTROL OFFIL Laboratory VERTICAL SLUDGE PUMP Manufacturer: Russia Model: ВШН – 150 -1 UNIT Capacity 150 m 3/hour Electric motor АО 2 -7 2 -4. Power: 30 k. W

DRILL WATER TRANSFER PUMP Manufacturer: China Model: VICTORY. Capacity 200 m 3/hour Power: 55 k. W RETURN WATER PUMP Manufacturer: Russia Model: НБ-32 Power: 10 k. W Length-38 м Hight-1070 мм Width-1200 мм 5 racks with protective shield PIPE RACK CATWALK Equipped with ladders, solid floor, dismountable, the height is in accordance with pipe parameters Manufacturer: Russia. Type: box type Overall dimensions: 15855 мм X 1070 мм X 2288 м м Permissible load: for drill pipes and Drill Collars DERRICK LADDER Manufacturer: Russia Tunnel ladder type with gangways RAILING Manufacturer: Russia Height 1, 25 m VERTICAL SLUDGE PUMP Manufacturer: Russia. Model; ВШН - 150 power: 30 k. W. Capacity 150 m 3/hour DRILL LINE SPOOLER Manufacturer: Russia Type: Mechanical

DRILLING RIG HAND TOOLS A complete range of hand tools, which includes, but not limited to, striking wrenches for all BOP equipment of the Contractors, mud pumps, etc. , a complete range of tongs from 56" and up to 8", a complete range of tongs and socket wrenches of metric and imperial sizes from 3/8" up to 2", complete set of couplings 3/4" with couplings up to 2" in diameter, complete range of couplings 3/8" with couplings up to 1 -1/4", pneumatic or hydraulic impact wrench with a complete set of heads, extensions, universal joints, etc. ; suitable for BOP equipment of the Contractors, mud pumps, etc. Manually –operated angle grinders, hacksaws, sledge hammers, ball peen hammers, power hammers, perforators, bits, screwdrivers, hydraulic cable cutter, bench vise, chain tongs from 56" up to 24" and manually operated and pneumatic pipe cutters for cold cut of casings 13 -3/8", 10 -3/4", 9 -5/8"in diameter. A complete range of hand tools, which includes, but not limited to, striking wrenches for all BOP equipment of the Contractors, mud pumps, etc. , a complete range of tongs from 56" and up to 8", a complete range of tongs and socket wrenches of metric and imperial sizes from 3/8" up to 2", complete set of couplings 3/4" with couplings up to 2" in diameter, complete range of couplings 3/8" with couplings up to 1 -1/4", pneumatic or hydraulic impact wrench with a complete set of heads, extensions, universal joints, etc. ; suitable for BOP equipment of the Contractors, mud pumps, etc. Manually –operated angle grinders, hacksaws, sledge hammers, ball peen hammers, power hammers, perforators, bits, screwdrivers, hydraulic cable cutter, bench vise, chain tongs from 56" up to 24" and manually operated and pneumatic pipe cutters for cold cut of casings 13 -3/8", 10 -3/4", 9 -5/8"in diameter. SAFETY FACILITIES AND FIRE-FIGHTING EQUIPMENT Fire hydrant, fire hoses, fire extinguishers, hooks, buckets, crows Fire hydrant, fire hoses, fire extinguishers, hooks, buckets, crows STAND ALONE BREATHING APPARATUSES Isolated gas masks FIRE EXTINGUISHERS Number: 30 Type : СО 2, powder-type fire extinguisher, other types Location: At the working places and on the derrick base Number: 30 Type : СО 2, powder-type fire extinguisher, other types Location: At the working places and on the derrick base EYEWASH AREAS Manufacturer: Russia Field hospital PERSONAL PROTECTIVE EQUIPMENT FOR PEOPLE WORKING INSIDE OF DRILLING RIG Work clothes, safety glasses, hard hats, aprons ANTI-SKID SYSTEM FOR DRILLING RIG FLOOR Manufacturer: China WARNING SIGNS According to the hazardous factors at the Drilling Rig 22 buildings equipped with facilities ACCOMMODATION BUILDINGS AND CANTEENS CAMP ON DRILLING SITE 3 blocks kitchen and canteens 1 drilling foreman’s office and bedroom 1 meetings’ block 1 sauna block 1 supervisor office block 1 medical and relaxation block. 8 bedroom blocks 8 bedroom blocks 2 contractors’ blocks 1 hand tools storage block 1 chemicals’ storage block блок для хранения хим. реагентов 2 drying blocks

DESCRIPTION OF EQUIPMENT SPECIFICATIONS ZJ 50 DBS ZJ 70 DBS Name and Serial Number of Drilling Rig. Year and place of manufacture Manufacturer Drive Arrangement of drive Depth of drilling with 114 -mm drill pipes ZJ 50 DBS 2007 , China, Diesel-electric Separate table drive 4500 m ZJ 70 DBS 2007 , China, Diesel-electirc Separate table drive 7000 м HOISTING EQUIPMENT Top drive TDS 9 SA VARCO DRILLING RIG – GENERAL SPECIFICATIONS DRAWWORKS Manufacturer Model, type Drive Rated input Power supplied to drawworks Load capacity at line string-up 6 х 7 Main brake Auxiliary brake China, C 50 DB-02 , single stage of speed regulation Electric (AC with frequency regulation) 1400 k. W 315 m(3150 k. N) Oil disk brake (regenerative with heat removing) Auxiliary drive unit with power of 45 к. W for emergency control and autodrilling China, JC 70 DB, single stage of speed regulation Electric (AC with frequency regulation) 2000 k. W 450 т (4500 к. N) Hydraulic disk brake (regenerative with heat removing) Auxiliary drive unit with power of 45 к. W for emergency control and autodrilling CROWNBLOCK Manufacturer: Model: China, ТС 350 Load capacity 350 t Number of sheaves: 6 units Sheave diameter: 1270 mm Drilling line diameter: 35 mm Fast crownblock sheave 1524 mm China ТС 450 Load capacity 450 т Number of sheaves: 6 Sheave diameter: 1524 мм Drilling line diameter: 38 мм

STATIONARY DRILLING RIGS ZJ 50 DBS, ZJ 70 DBS ZJ 50 DBS ZJ 70 DBS Nominal drilling depth, m 5000 7000 Maximum hook load capacity, k. N 3150 4500 Maximum drill pipe weight, k. N 1800 2700 Drill line diameter, mm 35 38 Rig useful height, m 45 41 Working floor height, m 9 9 Draw work capacity, HP 1900 2700 Rotary table diameter, mm 950 Drill pump capacity, HP 2 units 1600

HOOK BLOCK China, DG 450 1524 мм 7 450 t Compatible with rated weight load and size of derrick crown block Manufacturer Model Outside diameter of sheaves Number of sheaves Load capacity Compatible with rated weight load and size of derrick crown block China, DG 315 1270 mm 7 315 t Compatible with rated weight load and size of derrick crown block SWIVEL Rated load is compatible with derrick and rotary table Manufacturer Model Static load capacity Operating pressure China, SL-315 -5 315 t 35 MPa China, SL-450 -5 450 t 35 MPa Manufacturer Model Length Permissible load Number of sets Russia, forged and having sufficient length ШБУ-320 1300 mm 320 t 1 set Russia, forged and having sufficient length ШБУ-320 1300 мм 320 т 1 set DERRICK China, Type Maximum hook load at line string-up 6 х7 Height of derrick (from supporting surface of crownblock) Size of drilling floor (derrick legs axes) Height of drilling floor Derrick erection JJ 315/45 -К , K-shaped with open front face 315 t 45 m 12 х11 m 9 m Main drawworks (auxiliary drive) JJ 450/45 -К K-shaped no tensed line 450 т 45 м 12 х10, 13 м 9 м Main drawworks (auxiliary drive) TOP DRIVE SYSTEM VARCO TDS-9 SA Max. torque -62, 4 k. Nm Rated. torque -32~43 k. Nm at 114 rev/min VARCO TDS-11 SA Max. torque -62, 4 к. Nм Rated. torque -32~43 к. Nм at 114 rev/min DRILLING LINE According to АРI SPEC 9 B. Line diameter : 35 mm According to АРI SPEC 7 К. Line diameter : 38 мм DEAD LINE ANCHOR MANUFACTURER MODEL China, JZG 34 A Max. Line pull- 340 k. N Rope diameter- 35 mm China, JZG 34 A Max. Line pull - 340 к. N Rope diameter - 38 мм BAILS

DERRICK FLOOR EQUIPMENT ROTARY TABLE MANUFACTURER MODEL China, ZP 375 electric drive Maximum opening 952, 5 mm Static table load 585 t Speed of rotation 0… 300 rev/min Transmission: reduction gear with drive shaft through air line coupling BUSHING FOR ROTATION OF KELLY JOINT Available KELLY JOINT Quadrangular kellies, for a main hole of well and small diameter hole by 2 units of each size. Kelly saver sub should be of non-rotatable type Manufacturer: China Size 140 х140 mm and 89 х89 mm POWER CYLINDERS FOR UNSCREWING DRILL PIPES CONNECTIONS China, Hydraulic 2 complete sets DRILL PIPE ELEVATORS 2 units of each standard size Size 3 ½" Rated load capacity 247 t Size 5” 2 units of each standard size КМ: КМ 127 ПК-250. КМ 89 ПН-200. КМ 60 ПН-125. DC ELEVATORS 2 units of each standard size Size 9 ½ " Rated load capacity 148 t Size 8" Rated load capacity 148 t Size 7" Rated load capacity 99 t 2 units of each standard size КМ: КМ 89 -125 for DC with OD 89 мм. КМ 146 -170 for DC with OD 178 мм. КМ 178 -170 for DC with OD 203 мм. PRODUCTION STRING ELEVATORS For DC with OD 9 ½ " - 3 units Connection 8" Reg For DC with OD 8 " - 4 units Connection 7" Reg For DC with OD 7 " – 6 units Connection 5 ½ " Reg 2 units of each standard size КМ: КМ 146 -320 КМ 168 -320 China, ZP 375 electric drive Maximum opening 952, 5 мм Static table load 585 т Speed of rotation 0… 300 rev/min Transmission: reduction gear with drive shaft through air line coupling Available

АКБ-ZQ 203 -100 type –For drill pipes ( 89 -219 mm) 100 KN/m ГКШ-4000 For casing (89 -500 mm) 33 -200 KN/m with torque gage АКБ-ZQ 203 -100 type –For drill pipes ( 89 -219 мм) 100 КN/м ГКШ-4000 type –For drill pipes (89 -500 мм) 33200 КN/м with torque gauge POWER SLIPS FOR DRILL PIPES / DRILL COLLARS, CASINGS Pneumatic spider Load capacity 350 t Slips DCS –R 4 1/2"-6 ", 6 ¾ "8 1/4 ", 13 5/8" Pneumatic spider Г/П 350 тt Slips DCS –R 4 1/2"-6 ", 6 ¾ "8 1/4 ", 13 5/8" DRILL COLLAR SAFETY CLAMPS Available for all diameters of drill collars WEIGHT INDICATOR МD ТОТСО POWER UNIT China, Drawworks drive. Electric motor YJ 23 -2 un. 600 к. W, 600 V Rotor Drive. Electric motor YJ 23 -1 unit. 600 к. W, 600 V Pump drive. Electric motor YJ 31 -2 units. 1200 к. W, 600 V. USA. Top drive 2 units х245 к. W 690 V China, Drawworks drive. Electric motor YJ 31 -2, . 970 к. W, 600 V Rotor Drive. Electric motor YJ 23 -1. 600 к. W, 600 V Pump drive. Electric motor YJ 31 -3. 1200 к. W, 600 V USA Top drive 2 units х245 к. W 600 V GENERATING UNITS AND ROOM FOR GENERATING UNITS Manufacturer : USA Type: Diesel-electric units Rated power of motor: 1020 k. W Number of units 3 Frequency 50 Hz Voltage : 600 V Total power: 3060 k. W One room in nearderrick structure Manufacturer : USA Type: Diesel-electric units Rated power of motor: 1020 k. W Number of units 4 units Frequency: 50 Hz Voltage: 600 V Total power: : 4080 k. W One room in near derrick structure FUEL TANKS Fuel tank 2 х 50 m 3 . FUEL TANKS 6 х 50 м 3 DRILL PIPES WITH OUTER DIAMETER 5"х 0, 362 (127 х 9, 19) Category G-105 Weight 30, 0 kgf/m Number of connections: 430 Total length: 4500 m Type of connection NC 50 (4 ½" IF) API Classification: Premium, Range 2 Manufacturer: China GOST Р 50278 -92 Weight 30, 0 kgf/м (wall thickness of 9, 19 мм) Number of connections: 500. Total length : 6000 м Type of connection GOST 27834 -95 box and pin З-133 New Manufacturer: Russia SHORT JOINTS OF DRILL PIPES WITH OUTER DIAMETER 5 Length– 1, 5 m – 1 unit Length– 3 m – 1 unit Length– 4, 5 m – 1 unit Length – 1, 5 м – 1 Length – 3 м – 1 Length – 4, 5 м – 1 DRILL PIPE/ CASING TONGS DRILL PIPES

Category G-105 Weight 23 kgf/m Number of connections: 430 Total Length(m): 4500 m Type of connection NC 38 (3 ½" IF) API Classification: Premium, Range 2 Manufacturer: China ТУ 14 -1571 -88 Weight 23, 0 kgf/м (wall thickness of 9. 35 мм) Number of connections: 732 шт Total length (м): 6000 м Type of connection : З - 102 box and pin: ЗП-127 -59 New Manufacturer: Russia SHORT JOINTS OF DRILLING PIPES WITH OUTER DIAMETER 3 1/2 Length– 1, 5 m – 1 unit Length– 3 m – 1 unit Length– 4, 5 m – 1 unit Length – 1, 5 м – 1 Length – 3 м – 1 Length – 4, 5 м – 1 DRILL COLLARS (DC) 9 1/2" (241, 3) OD 9 1/2", ID 2 13/16" Weight 327, 4 kgf/m Type of connection 7 5/8" REG Total length: 25 m Spiral - corrugated Keyway DRILL COLLARS (DC) 8" (203, 0) OD 8", ID 3 1/7" Weight 240 kgf/m Type of connection 6 5/8" REG Total length: 50 m Spiral - corrugated Keyway OD 203 мм, ID 80 мм. Weight 214 kgf/м Type of connection З-171 Total length: 50 м Spiral - corrugated Keyway DRILL COLLARS (DC) 7" (178, 0) OD 7", ID 2 13/16" Weight 150 kgf/m Type of connection 4" IF Total length: 150 m Spiral - corrugated Keyway OD 178 мм, ID 80 мм. Weight 156 кгс/м Type of connection: З-147. Total length: 150 м Spiral - corrugated Keyway CROSSOVER SUBS Number : 3 units of each Detailed description is below: 7 5/8" reg. pin X 6 5/8" reg. box X 1, 22 m 7 5/8" X 6 5/8" X 1, 22 m 6 5/8" reg. pin X 4 1/2" IF box X 1, 22 m 6 5/8" X 4 1/2" 1. 22 m 4 1/2" IF pin X 4 1/2" IF box X 1, 22 m 4 1/2" X 1, 22 m 3 1/2" IF pin X 2 7/8" IF box X 1, 22 m Quantity: 3 units of each size Detailed specifications are given below: 7 5/8" reg. pin X 0, 915 м 7 5/8" X 7 5/8" reg. X 0, 915 м 6 5/8" reg. pin X 7 5/6" reg. pin X 0, 915 м 6 5/8" X 7 5/8" X 0, 915 м 4 1/2" reg. pin X 4 1/2" IF box X 0, 915 м 4 1/2" X 0, 915 м 3 1/2" reg. pin X 3 1/2" IF box X 1, 22 м 3 1/2* X 3 1/2" X 1, 22 м DRILL PIPES WITH OUTER DIAMETER 3 1/2" х 0, 368 (89 х 9, 35)

POWER SLIPS Air-operated spider, load capacity 350 t Slips DCS –R 4 1/2"-6 ", 6 ¾ "8 1/4 ", 13 5/8" CASING AND TUBING GAGE Available 1 set for each standard size of casings Available 1 set for each casing standard size CASING THREAD PROTECTOR Available MUD PUMPS Mud pump F-1600, including spare parts Power -1176 k. W; max. pressure - 34, 3 MPa; max. delivery - 50, 42 l/sec; dimensions-7500 х 2800 х 2688 mm; weight-38 t Mud pump F-1600, including spare parts Capacity -1176 k. W; max pressure - 34, 3 МПа; max. delivery - 50, 42 l/sec; dimensions-7500 х 2800 х 2688 мм; weight-38 t. -2 units MUD TANKS Number of mud tanks (including treatment unit) : 6. Net volume of drilling mud: not less than 370 m 3 Volume of tanks for liquid chemical agents: 3 m 3 Number of mud tanks (including treatment unit): 6. Net volume of drilling mud: not less than 480 м 3 Volume of tanks for liquid chemical agents: 3 м 3 WATER TANKS Water tank volume: 140 m 3 Water tank volume: 140 м 3 SHALE SHAKERS Number : 3 sets Manufacturer: DERRICK, USA Model: FLO-LINE -2000 -3 Capacity: 113 m 3 /hour Quantity: 3 sets Manufacturer: DERRICK, USA Model: FLO-LINE -2000 -3 Productivity 113 м 3 /hr HYDROCYCLONE Number 1 set Manufacturer: DERRICK, USA Model DSV-10 -3 Delivery pump power: 55 k. W Capacity: 65 m 3/hour Quantity: 1 комплект Manufacturer: DERRICK, США Model DSV-10 -3 Delivery pump power: 55 k. W Productivity 65 м 3/hr DESILTER Manufacturer: DERRICK, USA. Model: S 416 -S Delivery pump power: 55 k. W Capacity: 45 m 3/hour Manufacturer: DERRICK, USA Model: S 416 -S Delivery pump power: 55 k. W Productivity 45 м 3/hr CENTRIFUGE Manufacturer: DERRICK, USA Model: DE 1000, Capacity: 45 m 3/hour Manufacturer: DERRICK, USA Модель: LW 450 х1000 Productivity 45 м 3/hr MIXERS Manufacturer: China Mechanical NJ 15 un. Hydraulic Р= 6, 4 MPa, 15 units Manufacturer: China Mechanical NJ 15 -12 units Mechanical NJ 5, 5 -1 unit Hydraulic Р= 6, 4 MPa, 9 units GAS SEPARATOR FOR DRILLING MUD Gas Separator-settler: Manufacturer: China Gas Separator-settler: Manufacturer: China DRILLING MUD CIRCULATION SYSTEM HORIZONTAL VACUUM GAS SEPARATOR VERTICALLY INSTALLED IN DERRICK vacuum gas separator Manufacturer: USA, Model: DERRICK, VACU-FLO 1200, VERTICALLY INSTALLED IN DERRICK vacuum gas separator Manufacturer: USA

PRESSURE MANIFOLD (STANDPIPE ) Operating pressure (psi): 5000 HIGH PRESSURE MUD LINES Operating pressure 5000 psi, a separate line from each pump to pressure manifold of standpipe on the drill floor should be provided – totally two lines all the way from the mud pumps to the drill floor MUD HOSE Manufacturers : China Operating pressure: 5000 psi CEMENTING STANDPIPE Connected to the standpipe manifold on the drill floor, minimum 2 shut-off valves and 2 outlets for indicators with shut-off valves. Available Р -10000 psi Connected to the standpipe manifold on the drill floor, minimum 2 shut-off valves and 2 outlets for indicators with shut-off valves. Available Р -10000 psi FLEXIBLE HOSE FOR CEMENTING 1 set with inner diameter 2" x 10000 psi. shut-off valves and plug valves complete with hinged joints Style 50. Operating pressure (psi): 10000. Independent cementing line and line which passes under the floor , to release pressure in a standpipe 1 set with inner diameter 2" x 10000 psi. shut-off valves and plug valves complete with hinged joints Style 50. Operating pressure (psi): 10000. Independent cementing line and line which passes under the floor , to release pressure in a standpipe FISHING TOOLS Made in Russia : Spears per ТУ 39 -01 -10 -494 -79 Nonreleasing spears ТУ 26 -16 -22 -77 Releasing spears ТУ 39 -01 -10 -716 -81 Segment –type grapple ТУ 26 -02 -221 -75 Die collars DОСТ 8565 -81 Fishing taps DОСТ 8483 -81 Mills 6 -16 -60 -70 , ТУ 26 -16 -63 -78 Pilot mills ОСТ 26 -16 -1623 -82 Bottom hole mills ОСТ 26 -02 -233 -70 Cutting and grinding mills ОСТ 26 -02 -1296 -75 Impression blocks ТУ 26 -16 -102 -79 Contractor will provide a complete range of fishing tools and attachments to fish any well equipment of Contractor. Made in Russia : Spears ТУ 39 -01 -10 -494 -79 Nonreleasing spears ТУ 26 -16 -22 -77 Releasing spears ТУ 39 -01 -10 -716 -81 Segment –type grapple ТУ 26 -02 -221 -75 Die collars ГОСТ 8565 -81 Fishing taps ГОСТ 8483 -81 Mills ТУ 26 -16 -60 -70 , ТУ 26 -1663 -78 Pilot mills ОСТ 26 -16 -1623 -82 Bottom hole mills ОСТ 26 -02 -233 -70 Cutting and grinding mills ОСТ 26 -02 -1296 -75 Impression blocks ТУ 26 -16 -102 -79 Contractor will provide a complete range of fishing tools and devices to fish any well equipment of Contractor. REVERSE CIRCULATION JUNK BASKET Manufacturer: Russia Number: 1 of each type for each size of well according to the specifications.

OVERSHOT Number : one unit of each type Manufacturer and Model: Russia Type: LT 143, LT 206, LT 245, LT 273 Outside diameter of the body (inches): 5 -7/8", 8 -1/8"(9 W 810 -3/4" Outside diameter of the wall hook (inches): 15", 12" Length of the extension sub (inches): 3 feet Top sub connection: NC 38, NC 50, 4 ½, IF 5 -1/2 FH, 7 1/2" Diameter of fishing jobs target (spiral thread) (inches): +3 1/2" 4 -3/4", +5" 6 1/2" 6 5/8" 6 3/4" 7", +7 3/4" 8", 9". Max. diameter of fishing jobs target (junk basket) (inches) 4 -1/2", 5 -1/2", 7 -7/8". Number : one unit of each type Manufacturer and Model: Russia Type: ТНС Outside diameter of the body (inches): from 140 мм to 245 мм Top sub connection: З-86, З-133, З-147 Diameter of fishing jobs target (spiral thread) (inches): from 89 to 168 мм JUNK MILLS Manufacturer: Russia Number: 1 of each type for each size of well according to the specifications JUNK SUB (BOOT BASKET) Manufacturer and Model: Russia Manufacturer и Model: Russia Number: 1 of each type for each size of well according Number: 1 of each type for each size of well to the specifications according to the specifications SAFETY JOINT Manufacturer: Russia Safety joints of each type with 4 -1/2" IF box X pin complete with guide thread connection (for unscrewing) Manufacturer: Russia Type: БП and БРП 1 Safety joints 2 units of each type with IF box X pin complete with guide thread connection (for unscrewing) FISHING MAGNET Manufacturer: Russia Well sizes: 17 -1/2", 14 -3/4", 12 -1/4", 9 -7/8", 8 -1/2" Manufacturer: Russia Well sizes: from 142, 9 to 295, 3 мм IMPRESSION BLOCKS Manufacturer: Russia, Type of impression blocks - lead, one for each size of well Manufacturer: Russia, Type of impression blocks - lead, one for each size of well DITCH MAGNET To catch metal grit, which come through flow lines Made in Russia HYDRAULIC RELEASING SUB FOR FISHING JOBS Manufacturer: Russia Model: KXJ 80 KXJ 62 Connection: 6. 5/8 R NC 46

CASING SPEAR Made in Russia for all casing sizes to be used BLOWOUT PREVENTOR EQUIPMENT According to well drilling project Manufacturer: China Universal hydraulic blowout preventer Shear rams -1 set Kill manifold - 1 set Separator unit - 1 set Pipes - 1 set Master panel - 1 set Auxiliary console - 1 set Manifold - 1 set Choke manifold - 1 set DRILLING RIG INSTRUMENTATION All the drilling rig instrumentation, irrespective of its location on the drilling platform, is explosion –proof. MD ТОТСО system is installed to allow the information to be transmitted over a distance DRILLER’S CABIN AND REST AREA Driller’s cabin includes: Drilling instrumentation, digital system, control panel, monitor, computers, video surveillance cameras and explosion-proof conditioner etc. Behind the cabin there is a rest area, which includes: conditioner, eyewash area, table, chair, etc. Driller’s cabin includes: Drilling instrumentation, digital system, control panel, monitor, computers, video surveillance cameras and explosion-proof conditioner etc. Behind the cabin there is a rest area, which includes: conditioner, eyewash area, table, chair, etc. Drilling parameters deviations’ metering device Depending on well type and client’s requirements DRILLING MUD PIT LEVEL INDICATOR Manufacturer: USA MD ТОТСО Ultrasonic, 1 indicator in each drilling mud tank, including gauge tank and trip tank, electronic data storage system, continuous or selective printout, data display on a touch screen in real time, suitable for all areas where it is installed. To be adapted to a number of tanks. MUD VOLUME TOTALIZER Manufacturer: USA MD ТОТСО. Integrated into the system of drilling mud pit level indicator FLOW METER Manufacturer: USA MD ТОТСО. Located on a flow line, the indicator is on the driller’s console, where alarm system is provided. Manufacturer: USA MD ТОТСО. Located on a flow line, the indicator is on the driller’s console, where alarm system is provided. Depending on well type and client’s requirements

DATA ACQUISITION SYSTEM It is capable of acquiring and storing data coming from the instrumentation, which is used during drilling. Manufacturer: USA MD ТОТСО It is capable of acquiring and storing data coming from the instrumentation, which is used during drilling. Manufacturer: USA MD ТОТСО EQUIPMENT FOR WELDING AND METAL CUTTING AC Transformer. Gas cutter AIR COMPRESSORS Manufacturer: China Khong- Khua. Model includes 2 units. Screw compressors QTD 45, capacity 7, 5 cub. m. /min at pressure 1 MPa. Air collector: 2 units х2 m 3. Buffer air collector-1, 5 m 3 Manufacturer: China Khong- Khua. Model includes 2 units. Screw compressors QTD 45, capacity 7, 5 cub. m. /min at pressure 1 MPa. Air collector: 2 units х2 m 3. Buffer air collector-1, 5 m 3 DRILLING MUD CONTROL OFFIL Laboratory VERTICAL SLUDGE PUMP Manufacturer: Russia Model: ВШН – 150 -1 UNIT Capacity 150 m 3/hour Electric motor АО 2 -7 2 -4. Power: 30 k. W DRILL WATER TRANSFER PUMP Manufacturer: China Khong- Khua Model: VICTORY. Capacity 200 m 3/hour Power: 55 k. W RETURN WATER PUMP Manufacturer: Russia Model: НБ-32 Power: 10 k. W PIPE RACK Length-20 m Height-1, 5 m Width-28 racks with protective shield Manufacturer: China according to Russian standards Length-20 м, Height-1, 5 м, Width-2 8 racks with protective shield CATWALK Equipped with ladders, solid floor, dismountable, the height is in accordance with pipe parameters Manufacturer: Russia. Type: box type Overall dimensions: 20 m X 1, 5 m X 2 m Permissible load: for drill pipes and Drill Collars Manufacturer: Russia. Type: box type Dimensions: 20 м X 1, 5 м X 2 м Permissible load: for drill pipes and Drill Collars DERRICK LADDER Manufacturer: Russia Tunnel ladder type with gangways Manufacturer: China according to Russian standards Tunnel ladder type with gangways RAILING Manufacturer: Russia Height 1, 25 m Manufacturer: China according to Russian standards Height 1, 25 м EMERGENCY EXIT SLIDE Manufacturer: China Khong-Khua Manufacturer: China VERTICAL SLUDGE PUMP Manufacturer: Russia. Model; ВШН - 150 power: 30 k. W. Capacity 150 m 3/hour DRILL LINE SPOOLER Manufacturer: China Khong-Khua Type: Electric- Mechanical Model DDS-35 Manufacturer: China Type: Electric- Mechanical Model DDS-35 AC Transformer. Gas cutter

DRILLING RIG HAND TOOLS A complete range of hand tools, which includes, but not limited to, striking wrenches for all BOP equipment of the Contractors, mud pumps, etc. , a complete range of tongs from 56" and up to 8", a complete range of tongs and socket wrenches of metric and imperial sizes from 3/8" up to 2", complete set of couplings 3/4" with couplings up to 2" in diameter, complete range of couplings 3/8" with couplings up to 1 -1/4", pneumatic or hydraulic impact wrench with a complete set of heads, extensions, universal joints, etc. ; suitable for BOP equipment of the Contractors, mud pumps, etc. Manually –operated angle grinders, hacksaws, sledge hammers, ball peen hammers, power hammers, perforators, bits, screwdrivers, hydraulic cable cutter, bench vise, chain tongs from 56" up to 24" and manually operated and pneumatic pipe cutters for cold cut of casings 13 -3/8", 10 -3/4", 9 -5/8"in diameter. A complete range of hand tools, which includes, but not limited to, striking wrenches for all BOP equipment of the Contractors, mud pumps, etc. , a complete range of tongs from 56" and up to 8", a complete range of tongs and socket wrenches of metric and imperial sizes from 3/8" up to 2", complete set of couplings 3/4" with couplings up to 2" in diameter, complete range of couplings 3/8" with couplings up to 1 -1/4", pneumatic or hydraulic impact wrench with a complete set of heads, extensions, universal joints, etc. ; suitable for BOP equipment of the Contractors, mud pumps, etc. Manually –operated angle grinders, hacksaws, sledge hammers, ball peen hammers, power hammers, perforators, bits, screwdrivers, hydraulic cable cutter, bench vise, chain tongs from 56" up to 24" and manually operated and pneumatic pipe cutters for cold cut of casings 13 -3/8", 10 -3/4", 9 -5/8"in diameter. SAFETY FACILITIES AND FIRE-FIGHTING EQUIPMENT Fire hydrant, fire hoses, fire extinguishers, hooks, buckets, crows STAND ALONE BREATHING APPARATUSES Isolated gas masks FIRE EXTINGUISHERS Number: 30 Type : СО 2, powder-type fire extinguisher, other types Location: At the working places and on the derrick base Number: 30 Type : СО 2, powder-type fire extinguisher, other types Location: At the working places and on the derrick base EYEWASH AREAS Manufacturer: Russia Field hospital PERSONAL PROTECTIVE EQUIPMENT FOR PEOPLE WORKING INSIDE OF DRILLING RIG Work clothes, safety glasses, hard hats, aprons ANTI-SKID SYSTEM FOR DRILLING RIG FLOOR Manufacturer: China WARNING SIGNS According to the hazardous factors at the Drilling Rig ACCOMMODATION BUILDINGS AND CANTEENS 31 buildings equipped with facilities

CAMP ON DRILLING SITE 2 blocks drying units 1 block repair 1 block shower-rest room 1 block laboratory 1 block tool pusher’s office 1 block supervisor’s office 3 blocks of kitchen and canteens 1 drilling foreman’s office and bedroom 1 block for female personnel accommodation 1 meetings block 1 sauna block 3 supervisor's office block 1 medical and relaxation block. 8 bedroom blocks 2 blocks for contractors'’ accommodation 1 tools storage block 1 chemicals’ storage block 2 drying blocks BASE CAMP 1 block for expedition management accommodation 2 blocks canteen, kitchen 2 blocks recreation room 1 block shower-rest room 1 block sauna 8 blocks accommodation 1 container -refrigerator 1 block sitting room 1 block expedition’s office 2 blocks for the third-party contractors 1 block health and sanitary 1 block for expedition management accommodation 1. meetings block 2 blocks canteen, kitchen 1 block expedition’s office 1 sauna block 2 hotel block 1 drying block

CONTACTS «Drilling Systems» , JSC Joint Stock Company Activity oil&gas well construction Tel/fax: +7 (3412) 62 -03 -47, 62 -03 -46, 62 -03 -49 Address: 427000, 1, Golyanskaya, Zavyalovo, Russia, Udmurt Republic E-mail: office@bs. udm. net Website: www. bs-udm. ru