工厂化多井平台钻井

1、Evolution of the Williston Basin Drilling Pad;Drilling PadWhat affects a drilling padTypes of pads in North DakotaAdvances in pad constructionWhat affects a drilling padPlacement GeologyUnit spacing TopographyProtected EasementsRoad infrastructureGathering infrastructureFlood potentialErosion contro

2、lCity / county / state regulationSize Rig foot print Number of wells Battery size Flare orientation Panic line distance Topography Necessary Frac crew space Solids control planConstruction Soil MoistureNumber of wells on pad (Traffic Volume)WeatherSeasonal consideration of operationsPrehistoric Dril

3、ling Pad(pre 2000s - 2011)Single Well PadPurpose:HBP and Test a spacing unitSize: 300 x500Dual Well PadPurpose: Develop a single 1280 and minimize impact Allows for full development with only 4 locationsSize: 300 x550Three Well PadPurpose: Develop a full 2560 acre spacing unit and minimize impact of

4、 foot printSize: 395x550Eco PadFour WellsPurpose: Develop a full 2560 acre spacing unit & minimize foot printSize: 395x550SIMULTANEOUS OPERATIONS Four Well Eco Pad: 550 x700Eco Well Pad10Cyclone # 28Multi Well PadPurpose:Meet requirements for multiple wellsMinimize impactOvercome rough terrain,

5、& access issues (water)Size: 6 - 14 Wells 550 x 750Multi Well Pad13Cyclone #2Total Footage: 79,521 Day 80Lifecycle of Drilling PadsScoria 2 yrs. Avg. maintenance $5-7K / yr.Gravel 5 yrs. Avg. maintenance $2-4K / yr.Textile Reinforced 7 Avg. maintenance $1.5-3K / yr.Cement Stabilized 10 Avg. main

6、tenance $500-2000 / yr.Materials to Extend Lifecycle of Pads2 ply wood mats: wood mats interlocking form surface on locationComposite mats: Composite mat systems form surface on locationReinforced Geotextiles: High strength fabrics for separation & reinforcement of soil and aggregateGeo Cell Sys

7、tem: Plastic 3-D soil confinement systemCement Stabilization: Blending cement with native soil to create a more durable surface.2-Ply Wood Mats - OKAdvantages: Less expensive AvailableDisadvantages: Absorb Liquid Damage Easily Slip & trip hazard when wetCost$2.50 / sq. yd.Composite Mats - GoodAd

8、vantages:Light weight, easy to moveMore durableLow or no work over pad cost when placed over surfacingMinimize days to salesDisadvantages:Leasing - Mats not for saleTime to place on locationHigh demandCost$5.00 / sq. yd.Geotextiles - GoodAdvantagesOne size fits all solutionDeployed quicklyDisadvanta

9、gesNot easily removedDifficult to “repair”Life and stability of material is dependant upon load size, traffic, waterCost$4.00 7.00 / sq. yd.Geo Cell System - BetterAdvantagesReduce vertical and lateral movementLess surface material requiredProduct life estimated 25 yearsCan be placed in low temps where cement cannotDisadvantagesLabor intensive to placeCost$7.50 10.00 / sq. yd.Cement Stabilization - BestAdvantagesReduces Trucking Impacts Less surfacing materialHarder sub-grade Lower maintenanceDisadvantage