More GWD Methods Jim Hacksma Consultant More GWD

More GWD Methods Jim Hacksma Consultant

More GWD Methods q Swabbing q Venting q Soap sticks q Choking q Water q ESI shut-off (Extended Shut-In) q Intermitting Jim Hacksma 2

Swabbing, Venting & Soap Sticks q Swabbing, venting & soap sticks are usually temporary solutions for LL q However, if you get a production increase; Ø No matter how small the increase Ø No matter how brief the increase q Then there is reason to believe that a better GWD solution may provide a larger & lasting longing production increase Jim Hacksma 3

Choking q In is not a solution for LL fact, choking makes LL even worse Ø Choking Ø Higher increases the FTP increases the critical rate (CR) Ø With higher CR, liquid loading comes sooner Ø With higher CR, the well could die sooner q Choking will never, never be a solution for LL Jim Hacksma 4

Water Shut-Off q. A water shut-off is not a solution for LL Ø Impossible Ø Critical to shut-off all liquid ►Too many sources rate (CR) not a function of liquid rate Ø Removing q Attempted some water does not reduce CR water shut-off may make LL worse Ø LL is a result of too little gas ►Too little gas velocity Ø As gas rate decreases, LL worsens Ø Attempted Ø Less ØA shut-off often eliminates some gas = more severe LL water shut-off is rarely beneficial Jim Hacksma 5

ESI (Extended Shut-In) q What is ESI? Ø 1 st, shut-in until SITP = SICP Ø 2 nd, shut-in until both are static (no longer building) q Forces Ø Forces q Can liquid back into formation liquid down to bottom perf then flow the well at high rate Ø Can Jim Hacksma then unload the well 6

ESI (cont’d) q Use ESI for starting other GWD methods Ø VS ►PL ►WHC ►CGC ►Foam ►Intermitting Ø Or, use ESI in wells without any GWD q Use ESI to recover Ø Anytime Ø Use Jim Hacksma ►Repeat as needed any time & any situation ►Use it often q Works Ø Not well or GWD falters best in wells with no packer for wells with GL or pumping 7

ESI (cont’d) q Best q No GWD available to you cost ►Free (simply SI well) q Makes other GWD even better q Should be your preferred method of unloading Jim Hacksma 8

Intermitting q Often Ø 1 st used together – ESI Ø ESI to get started Ø Intermit q. A ► 2 nd – Intermit to maintain production good GWD solution Ø Lowest cost Ø Possibly Jim Hacksma the biggest bang for the buck 9

Intermitting (cont’d) q Anytime you are considering installing one of the more expensive GWD solutions, Ø SRP ►PL ►Foam ►VS ►WHC ►CGC ►GL Ø Anytime you are uncertain about how much the well might produce q Then Ø 1 st consider intermitting ►Cheapest solution intermit ►Determine well production If results are poor, at least you haven’t spent many $$ ü If results are good, you can then install better GWD ü Consider INT as means of further evaluating your well ü Jim Hacksma 10

Questions? q Jim Hacksma q Consulting q Specialty Petroleum Engineer – Gas Well Deliquification q 832 -559 -7332 office q 281 -415 -4715 cell q 11903 Amyford Bend, Cypress, TX 77429 q Jim. Hacksma@comcast. net Jim Hacksma 11