测井技术2023，Vol.47Issue(6)：736-745,10.DOI:10.16489/j.issn.1004-1338.2023.06.012
基于沉积模式约束的水平井单砂体构型技术
Single-Sand Configuration Technology of Horizontal Wells Based on Depositional Models Constraints
摘要
Abstract
As one of the earliest development areas in Tarim oilfield,the TI oil group in L10 well area has entered the middle and high water cut stage.The sedimentary system is complex,and the reservoir sedimentary facies change quickly.In reservoir development,the well pattern is irregular and the density is small,so it is difficult to accurately characterize the sand body.Early studies of sand body configuration can't meet the demand of tapping the potential of remaining oil by only using vertical wells.In this paper,the data of seismic,core,logging,production dynamics are combined to clarify the sedimentary model of TI oil group as meandering river and braided river delta frontdeposit.The lateral accretion of meandering river deposits leads to the"convex"shape of sand body development between the center of point bar and the abandoned channels on both sides.The vertical accretion of delta front deposits leads to the development of channel sand bodies in the form of lenticles.According to the development characteristics of sand bodies under different sedimentary models,the configuration of single sand body in vertical and horizontal well linkage is analyzed.The longitudinal superposition relationship and transverse distribution characteristics of single sand body are defined,and on this basis the remaining oil distribution is accurately predicted.The single sand body configuration technology of horizontal well provides detailed basis and support for tapping the potential of old oilfields,and provides reference for the efficient development of similar reservoirs in China.关键词
塔里木油田/沉积模式/水平井/单砂体构型/剩余油Key words
Tarim oilfield/sedimentary model/horizontal well/single sand body configuration/remaining oil分类
天文与地球科学引用本文复制引用
周静萍,李宁,郑小敏,黎健君,徐宁,李志宏..基于沉积模式约束的水平井单砂体构型技术[J].测井技术,2023,47(6):736-745,10.基金项目
中国石油天然气集团有限公司科学研究与技术开发项目"海陆过渡相页岩气地震储层预测及测井评价技术研究"(2021DJ2002) （2021DJ2002）
