第六部分随钻测量技术.ppt

第六部分随钻测量技术 6.1 随钻测量信息系统概述 VSP - Checkshot(校验炮) While Drilling （4）Look Ahead/Below Sheet Anhydrite or Salt （5）Find Geosteer into Porous Carbonate  Layers Embedded in Salt （6）Optimize Well Position in Oil Rim （7） Maximize Sand Penetration in Channelized Reservoir （8） Find Geosteer into Fractured Zones （9） Identify Delineate Compartments （11）Detect Fluid Contacts Remote from Well （12）Optimize In-fill Well Placement to Avoid Water Influx via Fractured Faults （13） Optimize In-fill Well Placement to Avoid Water Influx via Permeable Zones （14） Locate Remaining Oil Away from  Watered Out Wells （15） Locate Remaining Oil in a Layered Reservoir （16） Locate OWC’s in Proximal Stacked Oil Bearing Sands （17） Monitor beyond a Vertical Production Cone (Water or Gas) （18） Monitor Water (Gas) Encroachment Sweep Efficiency from Horizontal Producer （19） Identify Bed Boundaries Faults  Ahead of the Bit 6.7 Well Logging Trends Conveyance Independent Data Geosteering Behind Casing Reservoir Sensors （3） Optimize Geosteering Relative to Cap Rock OWC Horizontal Well GWC Salt or anhydrite OWC GOC Geopressured Sand （10）Detect Geopressures Ahead of the Bit GOC OWC OWC Higher k POWC POWC POWC POWC Horizontal Well Original OWC POWC Original OWC Horizontal Well Original OWC Current OWC Original OWC Current OWC Horizontal Well Integrated Drilling Evaluation and Logging(IDEAL) ——GeoSteering Tool 地质导向的特性： 电阻率和咖码测井可确定被钻岩层的流体和岩石性质； 方位电阻率提示司钻钻遇新的地层（approaching formation boundaries and contacts)，以便确定最佳工具面角； Bit speed enables the driller to optimize the power curve of the motor and improve penetration rate； Inclination at the bit enables the directional driller to drill straight ahead, reducing well tortuosity and extending the potential dispalce-ment of the well bore.