油藏监测和增产新技术

1、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2Consulting Services Focus咨询服务重点In-time operations support, leveraging superior Schlumberger measurementsActionable business solutions through expert integration and

2、 interpretation of exploration and production dataOptimal development strategies for life of fieldReduce Reservoir Risk and Uncertainty34Data and Consulting ServicesSubsurface expertise 2000+ Petroleum & Geosciences Experts in DCS worldwidelocal knowledgeall relevant domainsIndustrys largest pet

3、roleum engineering and geosciences consulting organizationOver 700+ studies in 85 countriesKnowledge to select segment technologyOther 10%Technicians 9%Reservoir/Production 29%Geophysicists 15%Geologists 14%Petrophysicists 23%5INTEGRATED PROJECTS6ADD WORLD MAPAndDCS Consulting offices here.CS PROJEC

4、T EXPERIENCECS PROJECT EXPERIENCE EOR ProjectIntegrated Project7Geoscience Centre, Beijing*SKK, Fuchinobe*Technology Hub, Kuala LumpurReservoir EngineeringDrilling EngineeringCompletion EngineeringGeomechanicsWell PlacementPerforatingSand Management*Technology Hub, Abu DhabiReservoir EngineeringGeom

5、echanicsGeophysicsRT 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 RC8 . Fracture DensityFracture aperture Matrix porosityFracture porosity Fracture paramete

6、rs definition using FMI interpretation 通过通过FMI确定裂缝参数确定裂缝参数 9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10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 TaZhong11Tg5-1TopInt. 2TopInt. 3TZ 82Interval 2Interval 38282SeismicInterpretation地震解释Petrophysical Analysi

7、s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 TaZhong12Net Pay Distribution Integrated Study on Ordovician Reservoir in TaZhong13Seismic inversion 地震反演技术Fig.1 Initial seismic interpretation with low

8、 resolution. Acoustic impedance “smooth near the faults. Fig.2 clear fault and acoustic impedance interpretation after applying seismic inversion 1.2.14Correlation between seismic attributes and well log interpretation井眼控制下的地震属性研究Well 6Well 6aWell 4.Well 3.Well 2.Well 1acoustic impedancePorosity mod

9、elfrequency Litology modeling153D 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 expectation16Water 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 MBPDHistor

10、ically Average worldwide water cut of 75% Industry Opex cost is $0.50/bbl ($40 B total) Fragmented approach to water handling17Well Diagnosis油井诊断log WOR vs log timeChoke-back analysisCHFROH-PressuresCH-PLT18Problem Types 水问题类型SimpleComplex341256879101/2Tubing packer leak 封隔失效封隔失效Flow behind casing 窜

11、层窜层 Oil Water Contact moving up油水油水界面上移界面上移 -High permeability layer without crossflow 高渗层高渗层Fissures between injector and producer天然裂缝天然裂缝高导流高导流 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

12、 crossflow 高渗层窜流高渗层窜流19Reservoir 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20Water-oil ratio change after waterflood front

13、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 field21earlierearlierRemaining 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 field22Base CaseForecast on 2013Optimization

14、Scenario Forecast on 2013Oil production WCUTRecommendation for Waterflood optimization 注水优注水优化化Example C-K field23Horizontal 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）24Where 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 N