特低渗裂缝性油藏选择性堵水技术研究  

Study on selective water plugging technology of extra-low permeability fractured reservoirs

作　　者：周娟[1] 曹国庆[1] 王倩[1] ZHOU Juan;CAO Guoqing;WANG Oian(~Research Center of Exploration and Development Technology, Yanchang Oilfield Co., Ltd., Yan＇an Shanxi 716000, China)

机构地区：[1]延长油田股份有限公司勘探开发技术研究中心,陕西延安716000

出　　处：《石油化工应用》2018年第4期36-39,共4页Petrochemical Industry Application

基　　金：延长石油集团科技项目"延长油田低渗主力油层提高采收率技术试验";项目编号:ycsy2017xjs-A-03

摘　　要：延长油田特低渗油藏微裂缝发育,注水开发中含水率上升速度快,造成油井水淹等问题。通过室内研究,开发了一种以改性聚丙烯酰胺为主要成分的高效选择性堵水剂YDS。通过与优化设计技术、WI堵水决策技术的结合应用,在现场取得了较好的堵水效果,并形成了适合特低渗裂缝性油藏应用的选择性堵水配套技术,改善了油藏开发效果。The extra-low permeability reservoirs of Yanchang oilfield have developed nature micro-fractures, and rapidly-increasing water cut appeares in waterflooding development,which causes problems such as flooding of oil wells. A highly selective water plugging agent YDS was developed by indoor research. Through the combination of optimization design technology and WI water plugging decision technology, good water plugging effects have been obtained in the field applications. A selective water plugging technology suitable for extra-low permeability fractured reservoirs has been formed, and the reservoir development effect has been improved.

关 键 词：特低渗油藏 裂缝性 选择性堵水 延长油田 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]