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.
出处
《石油钻探技术》
CAS
北大核心
2005年第1期9-11,共3页
Petroleum Drilling Techniques
关键词
低渗透油气藏
套管损坏
岩石应力
二连油田
low permeability pools
casing failure
rock stress
Erlian Oilfield
