Gas Well Deliquification Workshop Adams Mark Hotel, Denver, Colorado March 5 - 7, 2007 PerfLift Results Over The Past 18 Months Boots Rouen Schlumberger US Land Gas Lift
Definition • Ability to unload oil and gas wells in the perforations using gas lift. 2007 Gas Well Deliquification Workshop 2 Mar. 5 - 7, 2007 Denver, Colorado
Applications • Oil wells with low bottom hole pressure • Gas wells with low bottom hole pressure • Wells with long perforated intervals • Gas wells with very low PI • Wells with bad casing • Wells with liners or small casing completions • Below deviations where it is to risky to run packers 2007 Gas Well Deliquification Workshop 3 Mar. 5 - 7, 2007 Denver, Colorado
PerfLift Timeline Evolved from… Release Date Late 2005 • Coil Tubing Gas Lift • Field Tested in Texas, Oklahoma, and Wyoming • Dual Annular Lift • 60+ Jobs in 2006 • Casing Flow Conventional Gas Lift is Widely Used Need For New Gas Lift Method Becomes Overwhelming Coil Tubing and Annular Flow Gas Lift Grows PerfLift Idea Begins to Evolve PerfLift First Tested In East Texas Before 2000 2000 2001-2004 2004 2005 2006 Commercialization 2007 Gas Well Deliquification Workshop 4 Mar. 5 - 7, 2007 Denver, Colorado
PerfLift Explanation •Designed for… • Long perforation intervals Conventional/SP M Mandrels • Low BHP wells •Designed to… • Lift fluid from deeper in the Packer formation • Lower the FBHP Reservoir IM Mandrels Bull Plug 2007 Gas Well Deliquification Workshop 5 Mar. 5 - 7, 2007 Denver, Colorado
PerfLift Equipment • Conventional/Side Pocket Mandrels • Conventional 1” Gas Lift Valves • Packer (4 ½”, 5 ½”, 7”) • Internal Mount (IM) Mandrels • Bull Plug • Shear Sub • X-Overs 2007 Gas Well Deliquification Workshop 6 Mar. 5 - 7, 2007 Denver, Colorado
Traditional Gas Perforation Lift Gas Lift Conventional or Side Conventional or Side Injection • Injection down casing Pocket Mandrels • Injection down Pocket Mandrels Installed on Tubing to the packer. casing to the packer. Installed on Tubing Then through packer • Limited by packer into perfs. depth and perf depth. 4 ½”, 5 ½”, or 7” Packer 4 ½”, 5 ½”, or 7” Ported • Not Limited by or Parallel Flow Packer packer depth and 1 ¼” to 3 ½” Tubing perf depth. Below Packer – Depends on Packer/Casing Size Production Internal Mount Mandrels For Various Long Perforation Interval Tubing Sizes Bull Plug at Bottom PerfLift Animation 2007 Gas Well Deliquification Workshop 7 Mar. 5 - 7, 2007 Denver, Colorado
Applications • Oil wells with low bottom hole pressure • Gas wells with low bottom hole pressure • Wells with long perforated intervals • Gas wells with very low PI • Wells with bad casing • Wells with liners or small casing completions • Below deviations where it is to risky to run packers 2007 Gas Well Deliquification Workshop 8 Mar. 5 - 7, 2007 Denver, Colorado
Advantages • Lower fluid gradient • Lower FBHP • Increase in critical velocity in the wellbore, leads to increased production • Keeps injection pressure off formation • Ability to chemical treat in perforations • Ability to produce all zones in the wellbore 2007 Gas Well Deliquification Workshop 9 Mar. 5 - 7, 2007 Denver, Colorado
Value of PerfLift Production Results 600 Increase (mcf/d) Before Gas Lift (mcf/d) 500 400 ) f/D c (M n 300 tio c u d ro P 200 100 0 4 1 1 5 3 7 1 2 3 1 1 1 1 2 # 3 3 # # # # # # # # # # - # # # 0 1 h 1 0 1 r s s e s 5 s 2 3 0 c t e 3 3 3 r r c t n r # 6 n e l y i i i e e n s l a e s s s u 7 a n u h r H H H a e r r r F 6 R r i G c e V a i i i M e e e h h n H s L r B e H H H e S a e S t t . k k m i m i n T R H n n n n a r e y . a M e e e R S S L z d a P d d d t O H e u O O O n h i c P s n A 2007 Gas Well Deliquification Workshop 10 Well Name Mar. 5 - 7, 2007 Denver, Colorado
Value of PerfLift Production Results 600 Increase (MCF/D) Pre-Gas Lift (MCF/D) 500 400 Production (MCF/D) 300 200 100 0 2 3 4 1 1 3 1 5 3 7 1 2 1 3 1 # # 1 # # # # # # # # # # # # # a a a a a a x x x x x x x x e e e e e L L L L e e L e L s T T e T T T T T T . . . . . . i o o o o o o k E E E E E E E E N N N N N N c o R 2007 Gas Well Deliquification Workshop 11 Mar. 5 - 7, 2007 Denver, Colorado
Value of PerfLift Well Value Before and After PerfLift • Average $45,911 $50,000 production $45,000 increase $40,000 100MCF/D $35,000 $26,879 Before $30,000 After • Average 111% $25,000 Increase in well $20,000 performance $15,000 $10,000 $5,000 $- Monthly Value 2007 Gas Well Deliquification Workshop 12 Mar. 5 - 7, 2007 Denver, Colorado
Disclaimer The following disclaimer may be included as the last page of a Technical Presentation or Continuing Education Course. A similar disclaimer is included on the front page of the Gas Well Deliquification Web Site. The Gas Well Deliquification Steering Committee Members, the Supporting Organizations and their companies, the author(s) of this Technical Presentation or Continuing Education Course, and their company(ies), provide this presentation and/or training at the Gas Well Deliquification Workshop "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained. 2007 Gas Well Deliquification Workshop 13 Mar. 5 - 7, 2007 Denver, Colorado
4 ½” PerfLift Previous Production Pwh = 50 Psi 10 BWPD Pso = 900 Psi 50 MCF/D Gas 4 ½’’ Casing Well eventually Killed Itself 2 3/8’’ Tubing above packer Current Production 2 3/8’’ Tubing below packer 75 BWPD 225 Net MCF/D Perfs 6742’ – 8832’ 2090’ Interval Packer @ 6700’ 2007 Gas Well Deliquification Workshop 14 Mar. 5 - 7, 2007 Denver, Colorado
Mar. 5 - 7, 2007 Production 100 150 200 250 300 350 50 0 10/30/2005 11/13/2005 11/27/2005 12/11/2005 12/25/2005 1/8/2006 1/22/2006 2/5/2006 2/19/2006 2007 Gas Well Deliquification Workshop 3/5/2006 3/19/2006 4 1/2" PerfLift North Louisiana 4/2/2006 Denver, Colorado 4/16/2006 Date 4/30/2006 5/14/2006 5/28/2006 6/11/2006 6/25/2006 7/9/2006 7/23/2006 8/6/2006 8/20/2006 9/3/2006 9/17/2006 10/1/2006 10/15/2006 10/29/2006 15 Water Gas Oil
4 ½’’ PerfLift Previous Production Pwh = 60 psi 25 BWPD Pso = 800 psi Conventional 60 MCF/D Gas Gas Lift Mandrels 4 ½’’ Casing 2 3/8’’ Tubing above packer Current Production Packer Setting Depth 6790' 2 3/8” Tubing below packer 60 BWPD 150 Net MCF/D Perfs 6827’ – 8989’ Internal Mount Gas Lift Mandrels 2162’ Interval Packer @ 6790’ Perforations 6827' - 8989' 2007 Gas Well Deliquification Workshop 16 Mar. 5 - 7, 2007 Denver, Colorado
Mar. 5 - 7, 2007 Production 100 150 200 250 300 50 0 10/31/2005 11/14/2005 11/28/2005 12/12/2005 12/26/2005 1/9/2006 1/23/2006 2/6/2006 2/20/2006 2007 Gas Well Deliquification Workshop 3/6/2006 3/20/2006 4 1/2" PerfLift North Louisiana 4/3/2006 Denver, Colorado 4/17/2006 Date 5/1/2006 5/15/2006 5/29/2006 6/12/2006 6/26/2006 7/10/2006 7/24/2006 8/7/2006 8/21/2006 9/4/2006 9/18/2006 10/2/2006 10/16/2006 10/30/2006 17 Water Gas Oil
5 ½’’ PerfLift Previous Production Pwh = 280 psi Well had to be shut Pso = 1000 psi in for 3 days then it Conventional Gas Lift Mandrels would flow for 1 day 5 ½’’ Casing 2 3/8’’ Tubing above packer Current Production Packer Setting Depth 8093' 2 3/8” Tubing below packer 160 BWPD 492 Net MCF/D Perfs 8160’ – 11571’ Internal Mount Gas Lift Mandrels 3411’ Interval Packer @ 8093’ Perforations 8160' - 11571' 2007 Gas Well Deliquification Workshop 18 Mar. 5 - 7, 2007 Denver, Colorado
Mar. 5 - 7, 2007 P roduction 1000 1200 1400 200 400 600 800 0 9/7/2006 9/9/2006 9/11/2006 9/13/2006 9/15/2006 9/17/2006 9/19/2006 9/21/2006 9/23/2006 9/25/2006 9/27/2006 2007 Gas Well Deliquification Workshop 9/29/2006 10/1/2006 10/3/2006 10/5/2006 Denver, Colorado Date 10/7/2006 North Colorado 10/9/2006 10/11/2006 10/13/2006 10/15/2006 10/17/2006 10/19/2006 10/21/2006 10/23/2006 10/25/2006 10/27/2006 10/29/2006 10/31/2006 11/2/2006 11/4/2006 11/6/2006 Average Net = 492 MCF/D Gas Lift Volume MCFD Volume MCFD 19
7’’ Perf Lift Wyoming Previous Production Pwh = 200 psi 79 BWPD Pso = 1500 psi 0 BOPD 7’’ Casing 146 MCF/D Gas 2 7/8’’ Tubing above packer Current Production 2 3/8’’ Tubing below packer 159 BWPD 0 BOPD Perfs 12338’ – 13340’ 367 Net MCF/D Pcsg = 1160 Psi Packer @ 12090’ Ptbg = 130 Psi 2007 Gas Well Deliquification Workshop 20 Mar. 5 - 7, 2007 Denver, Colorado
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