油藏监测和增产新技术.ppt

New technologies for reservoir monitoring and production increasing 油藏监测和增产新技术油藏监测和增产新技术Consulting service (DCS), Schlumberger斯伦贝谢 咨询服务Consulting Services Focus咨询服务重点•In-time operations support, leveraging superior Schlumberger measurements•Actionable business solutions through expert integration and interpretation of exploration and production data•Optimal development strategies for life of fieldReduce Reservoir Risk and Uncertainty23Data and Consulting Services•Subsurface expertise–~ 2000+ Petroleum & Geosciences Experts in DCS worldwide•local knowledge•all relevant domains–Industry’s largest petroleum engineering and geosciences consulting organization–Over 700+ studies in 85 countries–Knowledge to select segment technologyOther 10%Technicians 9%Reservoir/Production 29%Geophysicists 15%Geologists 14%Petrophysicists 23%4INTEGRATED PROJECTS5ADD WORLD MAPAndDCS Consulting offices here….CS PROJECT EXPERIENCE EOR ProjectIntegrated Project6Geoscience Centre, Beijing*SKK, Fuchinobe*Technology Hub, Kuala LumpurReservoir EngineeringDrilling EngineeringCompletion EngineeringGeomechanicsWell PlacementPerforatingSand Management*Technology Hub, Abu DhabiReservoir EngineeringGeomechanicsGeophysicsRT HubDrilling EngineeringCompletions EngineeringMultilateralsWell PlacementWater Management**Carbonate Reservoir Research, DhahranMEA Technology Support Resources中东亚太区技术支持资源*Mumbay sub basalt RC7FMI .Х.Fracture DensityFracture aperture Matrix porosityFracture porosity Fracture parameters definition using FMI interpretation 通过通过FMI确定裂缝参数确定裂缝参数 8岩石物理岩石物理—现今最大主应力方向现今最大主应力方向DSI快横波方位角钻井诱导缝走向9裂缝置信度剖面图裂缝置信度剖面图NWSE高低Fractures Distribution Integrated Study on Ordovician Reservoir in TaZhong10Tg5-1TopInt. 2TopInt. 3TZ 82Interval 2Interval 38282SeismicInterpretation地震解释Petrophysical Analysis常规测井数据常规测井数据/对比对比/测井分析测井分析Multiple Attribute Analysis – SeisClass多属性分析多属性分析- SeisClassCoreFMIWorkflow研究流程Integrated Study on Ordovician Reservoir in TaZhong11Net Pay Distribution Integrated Study on Ordovician Reservoir in TaZhong12Seismic inversion 地震反演技术1.Fig.1 Initial seismic interpretation with low resolution. Acoustic impedance “smooth’ near the faults. 2.Fig.2 clear fault and acoustic impedance interpretation after applying seismic inversion 1.2.13Correlation between seismic attributes and well log interpretation井眼控制下的地震属性研究Well 6Well 6aWell 4.Well 3в.Well 2.Well 1acoustic impedancePorosity modelfrequency Litology modeling143D fracture modeling三维裂缝模型Well3 - dryWell 2 Well 1 - BestWell interference analysis IncludedBased on our recommendation well № 1 was drilling – the client meet expectation15Water is the No.1 problem for Mature Fields产水是油田开采后期的最大难题产水是油田开采后期的最大难题Oil77 MBPDWater220 MBPDHistorically•Average worldwide water cut of 75% •Industry Opex cost is $0.50/bbl ($40 B total)•Fragmented approach to water handling16Well Diagnosis油井诊断log WOR vs log timeChoke-back analysisCHFROH-PressuresCH-PLT17Problem Types 水问题类型SimpleComplex341256879101/2Tubing packer leak 封隔失效封隔失效Flow behind casing 窜层窜层 Oil Water Contact moving up油水界面上移油水界面上移 -High permeability layer without crossflow 高渗层高渗层Fissures between injector and producer天然裂缝高天然裂缝高导流导流 Fissures/fractures from a water layer裂缝贯通水裂缝贯通水层层 Gravity segregated layer 重力分异重力分异Coning 底水锥进底水锥进 Poor areal sweep 低扫油效低扫油效率率High permeability layer with crossflow 高渗层窜流高渗层窜流18Reservoir Diagnostics油藏诊断•Understanding of water production mechanism at reservoir level 产水机理•Understanding of pressure support 地层压力变化•Water production analysis 产水分析•Important: make sure breakthrough threshold makes sense 临界条件的把握19Water-oil ratio change after waterflood front break-through 水突破后的水油比变化水突破后的水油比变化Year 1997Year 2003Year 1987Year 1992 Example – C-K field20earlierearlierRemaining Reserves 2D distribution (from DCA)Water break-through mapWells-candidate for testingProduction Engineering Analysis 生产动态分析生产动态分析Example – C-K field21Base CaseForecast on 2013Optimization Scenario Forecast on 2013Oil production WCUTRecommendation for Waterflood optimization 注水优化注水优化Example – C-K field22Horizontal wells number (include horizontal sidetrack)– 10 % from total foundAnnual Oil Production from horizontal wells – 40% from Cum Field ProductionMonthly Oil production was doubled from 2002 to 2003 Project start 11/2000 1970 1980 1990 2000 2003Cumulative Oil Production HistoryField Development Optimization – Example from North Siberia (DCS, Schlumberger)油田开发优化－北西伯利亚（斯伦贝谢油田开发优化－北西伯利亚（斯伦贝谢DCS））23Where Water Management was Implemented斯伦贝谢实施水管理项目的其他记录• Shell North Sea/Brent• AGIP Nigeria/Port Harcourt• Norsk Hydro Norway/Snorre• Lasmo Venezuela/Dacion• O/S South America• Water Control Producer wells• Water Control Producer wells• WC Producer Wells/Injector Opt.• Field review• Field approachAssetSolution Scope24Questions?25。