二连油田阿11断块油水井套损原因分析及治理对策研究  

Reasons and Counter Measures of Casing Damages in Oil and Water Wells in No.11 Block in the Erlian Oilfield

作　　者：吴晓东[1] 李远超[1] 马焕英[1] 李良文[2] 

机构地区：[1]石油大学(北京)油气田开发学科,北京昌平102249 [2]华北油田分公司二连分公司,内蒙古锡林浩特026017

出　　处：《石油钻探技术》2005年第1期9-11,共3页Petroleum Drilling Techniques

摘　　要：二连油田属于低渗透砂岩油田,断层十分发育,其阿11断块油水井套管损坏严重。通过对油田油水井套管损坏统计分析及该地区地应力的分析计算,得出了导致该地区套损的主要原因,包括泥岩蠕变、断层导水、高压注水、频繁修井作业和套管强度设计不合理等,并且提出了相应的治理措施。The Erlian Oilfield is a low permeability sandstone reservoir and abounds in faults. Casing damages are severe in the No. 11 block. Based on the statistics of deformed wells and the calculation of crustal stress, this paper analyzes the reasons of casing damage including mudstone water absorbing and swelling, fault reactivation, high pressure flooding, frequent work over and improper casing design. In addition, this paper presents counter measures on how to prevent casing deformations in the Erlian Oilfield.

关 键 词：低渗透油气藏 套管损坏 岩石应力 二连油田 

分 类 号：TE931.2[石油与天然气工程—石油机械设备] TE983