WOLFBERRY PART 1: Optimum Vertical Intervals Examining The Optimum Vertical Interval Length When Drilling Multiple Zones In The Wolfberry December 5, 2012
Reliance Energy Wolfberry Production US Privately owned company - founded in 1988 Operations in Permian, Arkoma, S Texas, NM Lease position of over 120,000 Acres Production- 14,000+ BOEPD 2
Reliance Core Wolfberry Acreage 3
Reliance Core Wolfberry Acreage War Admiral Wyoming Colorado Oklahoma New Mexico Arkansas Andrews Martin Texas Man O War Ector Gallant Fox Midland 4
Wolfberry Development History 2007-Began Development Very Small Staff No Spraberry drilling or completion experience Internal Very little geologic expertise in house Couldnt even spell Wolfberry No Cash Flow to start with very little…
Wolfberry Development History 2007 Wolfberry Development West of Acreage Very Sparse Spraberry Development was Virtually All East of Acreage Common Belief: Wolfberry Played Out to the West Shelf Edge in 2007 Reliance Needed to…
Wolfberry Development History Study of Area Most Completion Stopped 200 into the Wolfcamp 51 Completions Went Spraberry Dean Wolfcamp Cline Strawn Deeper A Strong Trend Developed Spraberry Dean Wolfcamp B Spraberry Dean…
Completion Evolution-Initial Wolfberry Clearfork, Upper Typical and Lower Wolfberry Spraberry le4 Completion 2003-2007 Behind Pipe Industry 2002-2007 The current Slickwater Wolfberry Frac design costs 300k per well…
Initial Area Wolfberry Typical Area Completions 2003 + Spraberry-Upper Wolfcamp A Top 200 of Wolfcamp Completion Interval 8200-10,200 30 Day IP 60 BOPD, 90 MCFPD EUR Average - 110 MBOE 90% Oil/NGL, 10% Gas 9
Wolfberry Development History Work on Depth of Completion Networked with Basin Geologists Spraberry Dean Wolfcamp Cline Strawn Findings: Wolfcamp B&C and Penn Cline Silts/Shales Offered Reserves Spraberry Dean Wolfcamp B…
Reliance Generation 3 - Atokaberry Spraberry-Wolfcamp-Cline- Reliance Phase 3- Strawn-Atoka Atokaberry 8200-12,000 67 Wells 30 Day IP 80 BOPD, 185 MCFPD EUR Average - 246 MBOE 82% Oil/NGL, 18% Gas +650 Depth +50 MBOE…
Development Results 246 MBOE 196 MBOE 140 MBOE Year 1 2 3 4 5 6 17
Reliance Wolfberry Economics 18
WOLFBERRY PART 2: Completion Strategies Analyzing Production Performance Seen From Different Perforation Selections, Frac Fluids And Pumping Volumes In The Vertical Wolfberry
Completion Strategies Perforation Selection - Varied over 5 Years One 20 Perf Cluster Entry Issues Inconsistent Frac Height Fear of Lost Zone Stimulation Increased Stages 3-9 Perf Clusters - Settled on 4-5 Better Stage Coverage…
Completion Strategies Frac Zone Selection Initially Stayed in High Resistivity Zones Perf Similar Lithology Skipped Zones in Wolfcamp C, Strawn Skipped Zones due to Inconsistent Frac Height Added Wolfcamp C, Strawn, Atoka Core…
Changing Completion Strategies 2012 - Issues Drive Change 1. Reservoir Issues in Vertical Completions Significant Reservoir Pressure Differences Bottom to Top-3500 ft Spraberry Zone Thieving Completion Evidence Spraberry Lose…
Reliance Generation 4 AtokaDean Slick Water Clearfork, Upper Typical Crossflow and Lower Wolfberry Spraberry le4 Completion 2003-2007 Behind Pipe Reliance Reliance Completion Completion 2007-2009 Include Strawn…
Changing Completion Strategies 2012 - Issues Drive Change 2. Completion Issues Recover Load Faster w/o Reliance Completion War Admiral Days Completion Days Increasing Costs Coil Tubing Drill Outs Too Expensive Flow Back Plugs…
Changing Completion Strategies 29
Changing Completion Strategies First 27 Wells Slick Water Vs 44 Wells All Zones Gel Frac Atoka- Spraberry/Clearfork Reduced Initial Well Costs by 250k/well BOE basis-Slickwater Completion Performance (Slickwater vs. Gel) yielding…
Changing Completion Strategies Completion Performance (Slickwater vs. Gel) 31
Q&A
APPENDIX
Completion Evolution The three oldest Slickwater wells (Mabee 240B 1702, Mabee 240B 1602, and Mabee 239 503) have all been producing for at least 130 days No type curve/EUR has been assigned to the Slickwater completion technique due…
Completion Evolution The three oldest Slickwater wells (Mabee 240B 1702, Mabee 240B 1602, and Mabee 239 503) have all been producing for at least 130 days No type curve/EUR has been assigned to the Slickwater completion technique due…