Plunger Enhanced Chamber Lift 2003 Gas Well DeWatering

Plunger Enhanced Chamber Lift 2003 Gas Well De-Watering Workshop March 3 -5, 2003 Denver, Colorado

Plunger Enhanced Chamber Lift PROBLEMS ENCOUNTERED • WELL PROBLEMS ENCOUNTERED Ø HOW CAN THE WELL RETURN TO FLOWING STATUS Ø HOW TO PRODUCE AT LOW BHP Ø WHERE TO SET TUBING WITH LONG PERFORATED INTERVALS Ø HOW TO OVERCOME FRICTIONAL LOSSES FROM SMALL TUBULARS Ø HOW TO CONTROL SURGE ON THE FORMATION AND COMPRESSION Ø HOW TO ELIMINATE COMPRESSION RECYCLE

Automation Feedback Realtime IPR Curve

AC TBG Separator INJ EQ Water Oil Stock Tank Water Oil Gas Sales Meter M Compressor

PRECHARGE CYCLE CONCENTRIC TUBING DESIGN TUBING CLOSED EQUALIZING CLOSED CASING OPEN y Step 1 INJECTION OPEN 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

PURGE ON CYCLE (E. G. 1 MINUTE) CONCENTRIC TUBING DESIGN TUBING OPEN EQUALIZING CLOSED CASING OPEN Step 2 INJECTION CLOSED 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

PURGE OFF CYCLE (E. G. 5 MINUTES) CONCENTRIC TUBING DESIGN TUBING CLOSED EQUALIZING CLOSED CASING OPEN Step 3 INJECTION CLOSED 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

ON (LIFT) CYCLE TUBING OPEN EQUALIZING CLOSED CASING OPEN y Step 4 CONCENTRIC TUBING DESIGN INJECTION OPEN 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

AFTERFLOW CYCLE CONCENTRIC TUBING DESIGN TUBING OPEN EQUALIZING OPEN CASING OPEN Step 5 INJECTION CLOSED 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

OFF CYCLE CONCENTRIC TUBING DESIGN TUBING CLOSED EQUALIZING OPEN CASING OPEN Step 6 INJECTION CLOSED 1 -3/4” COIL TUBING 2 -7/8” TUBING 5 -1/2” CASING TUBING PERFS. STANDING VALVE CASING PERFS. 500 FT OVERALL INTERVAL

Plunger Enhanced Chamber Lift MAXIMUM PRODUCTION RESULTS üACHIEVE CONTINUOUS FLOW üPRODUCE LONG PERFORATED INTERVALS WITH LOW BOTTOM HOLE PRESSURE üREDUCE FRICTION THROUGH ANNULAR FLOW üREDUCE FORMATION AND COMPRESSION SURGE üTOTAL GAS SYSTEM MANAGEMENT