随钻测井技术在塔里木油田的应用  

Application of well logging while drilling in Tarim Oilfield

作　　者：王谦 信毅[2] 苏波 李震 廖茂杰 姚亚彬 虞兵 

机构地区：[1]中国石油集团测井有限公司,陕西西安710077 [2]中国石油塔里木油田分公司,新疆库尔勒841000

出　　处：《复杂油气藏》2016年第4期30-36,共7页Complex Hydrocarbon Reservoirs

基　　金：中国石油天然气股份有限公司重大科技专项致密气藏测井采集处理与评价技术研究(2010E-2304)

摘　　要：随钻测井技术可实时跟踪钻头轨迹,指导钻井作业,对复杂井、复杂地层的含油气情况进行实时评价,在油田勘探与开发中发挥着越来越重要的作用。在塔里木油田的实际钻探实例中,系统应用了这一技术,利用随钻方位伽马测井技术,在砂泥岩地层中准确判断井眼轨迹与储层的关系,有效地进行地质导向,提高储层钻遇率,优化射孔方案;利用随钻电磁波电阻率测井技术,根据不同探测深度电阻率的差异,提前识别储层,指导钻井决策;利用随钻方位密度测井技术,判断致密层与井眼轨迹的空间位置,精确识别有效储层,为解释评价提供准确的储层物性参数;利用随钻西格马测井技术,在高矿化度地层水的储层中,有效区分低阻油层与水层;利用随钻测井与划眼测井受到泥浆侵入影响的不同,建立基于随钻电阻率时间推移测井的流体性质识别方法,消除围岩与储层各向异性对电阻率测量值的影响,有效地指导水淹层的解释评价。Well logging while drilling （LWD） technology can track the bit trajectory in real time, and guide the drilling operation,which can evaluate in real -time the hydrocarbon condition of complex well and formation. LWD technology be- comes a more and more important role in the oilfield exploration and development. This LWD technique is methodically ap- plied to the practical drilling in Tarim Oilfield. The azimuth gamma LWD can accurately determine the relationship between well trajectory and reservoir in shale formation and effectively guide the geosteering. So it improves drilling catching rate and optimizes the perforation project. Based on the difference of resistivity between different investigation depths, the electromag- netic wave resistivity LWD can identify the reservoir in advance and guide the decision making of drilling. The azimuth densi- ty LWD can judge the spatial position of the dense layer and the well trajectory and accurately identify the effective reser- voir,which provide accurate reservoir physical parameters for the interpretation and evaluation. The sigma LWD can effective- ly distinguish the low resistance oil and water layer in reservoir with high salinity formation water. Based on the different in- fluence of mud invasion on drilling well logging and redressing logging, the method of identification of fluid properties can be established by drilling resistivity time - lapse logging. The method eliminates the influence of surrounding rock and reservoir anisotropy on resistivity measurement and effectively guides the interpretation and evaluation of water flooded layer.

关 键 词：塔里木油田 随钻测井 井眼轨迹 地质导向 时间推移测井 

分 类 号：P631.8[天文地球—地质矿产勘探]