作业入井液中暂堵剂的研究与应用  

Research and application of temporary plugging agent in all fluids at operation.

作　　者：韩永文[1] 严锦根[1] 汤志强[1] 张国荣[1] 

机构地区：[1]胜利石油管理局孤东采油厂

出　　处：《油气采收率技术》2000年第2期48-51,共4页

摘　　要：孤东油田的油层厚度大 ,渗透率差异大 ,注采比高 ,作业压井困难 ,低压层漏失严重 ,污染地层。高压层所需压井液密度大 ,致使同井不同层之间的压力差异变得更大。针对这一问题研究了一种新型油层暂堵剂SYD系列 ,经孤东油田 2 9口井的试验表明 ,暂堵成功率达到 1 0 0 %The large formation thickness and serious permeability variation between different layers are the main feature of Gudong oilfield. High injection-production ratio results in difficult well killing jobs in workover, while the serious fluid leakage occurs in lower pressure layer and damages the formation. Pressure differences among different formations in the same well will be enlarged due to large density of well killing fluid required by high-pressure formations. A new type of temporary plugging agent for oil-bearing formation, SYD series, is developed to solve the problems. The experiments of 29 wells in Gudong proved that the success ratio of temporary plugging is 100%.

关 键 词：孤东油田 作业压进 暂堵剂 采油井堵水 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程] TE39