Reduced Well Pad & Access Road Construction Costs

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2 Reduced Well Pad & Access Road Construction Costs The Positive Cost Benefits TenCate Geosynthetics Provide Whiting Petroleum In The Bakken John Herrmann TenCate Geosynthetics Market Development Manager Oil & Gas GEOSYNTHETICS

3 $76,000 31%

4 GEOSYNTHETICS Soft Soils

5 GEOSYNTHETICS The Fix?

6 Soft Soils Area stabilized with RS580i GEOSYNTHETICS

7 2014 ASCE Shale Energy Engineering Conference The Positive Environmental and Cost Impact of Geosynthetics in Well Pad and Access Road Construction Bruce A. Lacina 1, P.E., M.ASCE, John D. Herrmann 2, AffM.ASCE, and Monte Madsen 3 1 Roadway Reinforcement Technical Manager, TenCate Geosynthetics Americas, 365 S. Holland Dr., Pendergrass, GA 30567, U.S.A., b.lacina@tencate.com 2 Market Development Manager Oil & Gas, TenCate Geosynthetics Americas, 637 Avondale Dr., St. Peters, MO 63376, U.S.A., j.herrmann@tencate.com 3 Completions Engineering Team Lead, Whiting Petroleum Corporation, 1700 Broadway, Suite 2300, Denver, CO 80290, U.S.A., monte.madsen@whiting.com ABSTRACT: The incorporation of high strength geosynthetics provide numerous benefits to oil and gas producers and the engineering consultants tasked with designing their well pads and access roads. This paper will present examples of the positive environmental impact and cost benefit high strength geosynthetics provide Whiting Petroleum Corporation in the Williston Basin of North Dakota and Montana, along with an example of a gas well pad and access road in central Pennsylvania stabilized GEOSYNTHETICS with the same geosynthetic.

8 What Functions Do Geosynthetics Serve in Roadways? Separation Filtration Drainage Confinement Reinforcement

9 Separation

10 Filtration & Drainage

11 Confinement

12 Reinforcement

13 Let s look at today s geosynthetics

14 Nonwoven Geotextiles High flow rate Fine filtration High elongation Low strength to weight ratio Can clog or blind in roadway applications

15 Clogging & Blinding Clogging Blinding

16 16 Presentation title

17 17 Presentation title

18 18 Presentation title

19 19 Presentation title

20 Slit Film Woven Geotextiles Good separator fabric Higher strength than nonwovens Low elongation Poor flow and filtration

21 21 Presentation title

22 Woven High Performance Polypropylene Geotextiles High tensile modulus Superior damage resistance Good for paved & unpaved roads Filtration decreases as strength increases

23 HP Geotextiles Hydraulic Properties HP570 Flow Rate = 30 gal/min/sf HP270 Flow Rate = 50 gal/min/sf 600X Flow Rate = 4 gal/min/sf Tensile Strength 2% Strain HP570 1,320 lbs/ft HP lbs/ft 500X 450 lbs/ft Separation AOS 30 US Std Sieve (0.60 mm)

24 HP Geotextiles: Tensile Strength vs. Flow Rates Tensile 2% Strain (kn/m) Flow Rate (l/min/m 2 ) Tensile Strength Flow Rate 0.0 HP270 HP370 HP570 HP770 0

25 Polypropylene Geogrids Used in base reinforcement Good for lateral restraint Provide confinement & reinforcement Does not offer filtration Does not offer separation

26 Geosynthetic Functions Separation Filtration Drainage Confinement Reinforcement Nonwoven Slit Film Woven Geogrid High Performance Woven Varies GEOSYNTHETICS

27 Industry dilemma: One geosynthetic can t do it all

28 28 Presentation title TenCate Mirafi RSi-Series

29 Geosynthetic Functions Nonwoven Slit Film Woven Geogrid Separation Filtration Drainage Confinement Reinforcement High Performance Woven RSi Series Varies GEOSYNTHETICS

30 Product Comparisons RS580i HP570 BXG120 Ultimate XD % XD % XD AOS NA Flow Rate NA Permittivity NA Ci GEOSYNTHETICS

31 Poor Filtration Typical Woven Geotextile GEOSYNTHETICS

32 Excellent Filtration - RSi GEOSYNTHETICS

33 GEOSYNTHETICS Whiting Well Pad: CBR < 3%

34 GEOSYNTHETICS Mirafi RS580i Installed

35 GEOSYNTHETICS 4 Minus Aggregate

36 GEOSYNTHETICS Motor Grader Spreads Aggregate

37 Well Pad Stabilized and Ready For Drilling GEOSYNTHETICS

38 Whiting Well Pad Construction May 2013 GEOSYNTHETICS

39 Whiting Well Pad Construction May 2013 Man sinks 2 to 3 (CBR = 0.4 to 0.8) GEOSYNTHETICS

40 Whiting Well Pad Construction May 2013 GEOSYNTHETICS

41 Whiting Well Pad Construction May 2013 GEOSYNTHETICS

42 GEOSYNTHETICS Drilling July 2013

43 GEOSYNTHETICS Drilling July 2013

44 GEOSYNTHETICS Before Mirafi RS580i

45 GEOSYNTHETICS Maintenance Required

46 GEOSYNTHETICS After Mirafi RS580i

47 Whiting Petroleum Cost Analysis Old Method Unit Amount Unit Cost Total Cost Initial 4 aggregate section 2,180 CY $35.00 / CY $76,300 Additional 9 of aggregate section 4,800 CY $35.00 / CY $168,000 Total Cost: $244,300 RS580i Method Unit Amount Unit Cost Total Cost 6 aggregate section 3,400 CY $35.00 / CY $119,000 RS580i installed 15,000 SY $3.25 / SY $48,750 Total Cost: $167,750 GEOSYNTHETICS

48 Conclusions Well pad construction savings: $76,550 per pad (31.3%) RS580i utilized on 30 pads per year: $2,296,500 savings CO2 emissions reduction: 606,414 kg per pad (52.3%) RS580i utilized on 30 pads per year: 18.2 M kg reduction Whiting estimates a financial burden of $100,000 per day of delay GEOSYNTHETICS

49 What Can You Do Call TenCate Receive a free design Try an RSi solution on an upcoming site Save time and money GEOSYNTHETICS

50 Studies have shown that up to 90% of what is said during a presentation is forgotten within 60 minutes The 10% we hope you will remember: Think Ahead.Think TenCate RSi Geosythetics: Proven Cost Effective Solutions For Tomorrow s Well Pads GEOSYNTHETICSwww.mirafi.com