摘要
川中磨溪气田Ｔ２ｌ１＾１含硫气藏盐水电化学腐蚀及Ｈ２Ｓ、ＣＯ２腐蚀十分严重。由于未采和封隔器完井，油管为普通的日本抗硫油管，因此开采几年来，井下油套管被腐蚀产生堵塞，多数井压力、产量下降。经修井发现绝大多数井的油管断落。采用封隔器和耐腐蚀的油管柱完井是磨溪Ｔ２ｌ１＾１气藏开发的当务之急。通过以Ｔ２ｌ＾１１气藏第一口封隔器完井的工艺技术为例，较详细地介绍了封隔器完井管柱设计以及工艺技术。
The electrochemical corrosion of brine and the corrosion by H_2S、CO_2 are serious in Moxi gas field of middle Sichuan. Since used are ordinary Japanese sulfate resistant tubings without using packer in well completion,the corrosion and packing often occures,and cause the drop of pressure and production rate. The workover shows the main reason is the crackng of tubing. In this condition,using packer and corrosion resisting tubing in well completion is an emergency measure in the development of Moxi gas field. The string design and well completion process with packer are introduced in detail through the first well completion by packer in I_2i_1~1 reservoir.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1996年第2期43-45,共3页
Natural Gas Industry
关键词
气田
磨溪气田
含硫气体
封隔器
酸化
完井
Sichuan, Middle, Moxi gas field,Sour gas, Packer, Acidizing, Well completion, Technique
