Research of the Prevention and Remedial Measures of Sustained Casing Pressure in Complicated Gas Wells

摘要：

As the demand of gas and the updated exploratory techniques increase, more and more deep emplacement and complex gas wells come into the industry. It follows that sustained annular pressure ( SCP) and gas channeling become more serious in these wells. SCP can be caused by several factors. In this paper, we analyze these factors and their features including tubing and casing leakage, poor mud displacement, improper cement system design or damage to cement after setting: Moreover, a summary of prevention and solution for SCP is given. Beside these, advanced technology for SCP used domestically is also presented. In general, for SCP, it is necessary to make proper cement design, to improve the displacement efficiency when cementing and using anti -gas -channeling slurry system.

作者: Qi Fengzhong Liu Shuoqiong Yuan Jinping Qu Congfeng

会议类型: 国际会议

会议名称: 2010 CNPC International Wellbore Technology Seminar(2010年CNPC井筒技术国际研讨会)

会议地点: 北京

会议语种:英文

页码: 274-281

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）