摘要
见水是长庆油田水平井多段压裂、注水开发出现的重要问题之一,见水后含水快速上升,产能迅速下降,严重影响水平井开发效益。受低渗透油田非均质性影响,无法直接动态验证出水层段,亟需开展水平井找水技术研究。因此,本文通过分析不同见水特征、出水类型、改造情况,研发了水平井分段生产找水技术、井下取样找水技术、单封拖动管柱找水技术以及双封抽汲拖动管柱找水技术,形成了多段压裂水平井高效低成本找水技术系列,为水平井控水稳油措施提供可靠依据。
Water breakthrough is one of emerging issues of horizontal wells in Changqing oil field which caused by multistage fracturing and water injection development.After water breakthrough,the water content rising rapidly and the production drawdown speedily that could affect the horizontal wells development benefits seriously.By the effect of heterogeneity of low permeability reservoir that can not verify the breakthrough interval directly,it is neces- sary to research techniques of horizontal wells water detection.Therefore,this article analysis the different water breakthrough characteristics,water type,fracturing data and etc,researched low cost and high efficiency horizontal well water detection technology series innovatively,
出处
《石油化工应用》
CAS
2016年第9期20-24,共5页
Petrochemical Industry Application
基金
中国石油天然气股份有限公司科研项目"长庆油田油气当量上产5000万吨关键技术"
项目编号:2011E-13
关键词
低渗透
多段压裂
水平井找水
分段生产
井下取样
拖动管柱
low permeability reservoir
multistage fracturing
horizontal well water detection
sectional production
downhole sampling
dragging string
