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多信息耦合的水平井井间隔夹层预测方法
余义常1,2,徐怀民2,江同文3,高兴军1,徐朝晖2,阳建平3,宁超众1
(1.中国石油勘探开发研究院,北京 100083;2.中国石油大学(北京)地球科学学院,北京 102249;3.中国石油塔里木油田公司,新疆库尔勒 841000)
摘要:
综合利用岩心、常规测井、倾角测井、水平井测井和生产动态等资料,对塔里木盆地哈得逊油田东河砂岩隔夹层的静态地质特征、产状拾取、水平井测井响应特征、动态生产特征等进行系统研究。通过“静态模式指导、多测井系列解释、产状指向、水平井标定、导眼井与水平井匹配、动态预测及验证”的流程,建立有创新性和针对性的多信息耦合的水平井井间隔夹层预测方法。结果表明:研究区存在泥质、钙质和钙泥质隔夹层,从级次上分为层间、砂体间及单砂体内隔夹层;优选0.2 m窗长、0.02 m步长、30°探索角拾取隔夹层的产状,并进行产状转换;通过水平井段测井响应异常及深浅电阻率差异识别隔夹层的类型及位置;将研究区射孔及见效情况、含水率及日产液曲线进行分类,确立连续、半连续、不连续3类隔夹层展布范围及平行、倾斜两种隔夹层展布产状对应的注水区、边水区、底水区的单井生产动态特征。
关键词:  隔夹层井间预测  静态地质特征  产状拾取  水平井标定  动态特征  多信息耦合
DOI:10.3969/j.issn.1673-5005.2018.05.004
分类号::TE 121.3
文献标识码:A
基金项目:国家科技重大专项(2017ZX05030-001);中国石油集团公司重大科技专项(2017D-4406)
Prediction method of interlayer distribution between horizontal wells by coupled multi-information
YU Yichang1,2, XU Huaimin2, JIANG Tongwen3, GAO Xingjun1,XU Zhaohui2, YANG Jianping3, NING Chaozhong1
(1.PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;2.College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China;3.Tarim Oilfield Corporation, PetroChina, Korla 841000, China)
Abstract:
Based on a multi-disciplinary analysis that combines core data, conventional logging, inclination logging, horizontal well logging and production records, this study targets the static geologic characteristics, acquisitions of inclination and dip angles, response characteristics of horizontal well logging and dynamic response characteristics of the interlayers in Donghe sandstone of Hadeson Oilfield in Tarim Basin. Through the process of "guidance of static geological pattern, multi-series well logging interpretation, acquisitions of inclination and dip angle, horizontal well interpretation, matching of guide well and horizontal well, prediction and verification of dynamic characteristics", an innovative and practical prediction method of interlayer distribution between horizontal wells by a coupled multi-information system was put forward. The interlayers in the study area included argillaceous, calcareous and calcareous-argillaceous interlayers, which can be divided into interbedded interlayers, interlayers betweens and bodies and interlayers in single-sand body. Processing parameters were preferred with 0.2m in window length, 0.02m in step length, and 30 in probe angle to pick up the inclination and dip angles of the interlayer, which is then transformed to the horizontal well. The position of the interlayers could be qualitatively identified by the abnormal logging response of the horizontal section and the relative change between the resistivity of the interlayers and the reservoirs. The correspondence model of perforation and injection, the curves of water cut and liquid production in the study area were divided into different types. The dynamic production characteristics of a well inwater injection area, border water area and bottom water area were established in correspondence with three kinds of distribution patterns of interlayers, i.e. continuous, semi-continuous and discontinuous; and with two forms of interlayers, i.e. parallel and inclined.
Key words:  interlayer interval prediction  static geological features  acquisitions of inclination and dip angle  horizontal well interpretation  dynamic characteristics  multi-information coupled
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