莺歌海盆地高温高压气井水泥浆研究与应用  

A Cement Slurry Research and Application for HTHP Gas Well of Yinggehai Basin

作　　者：罗鸣 黄熠 陈良[2] 李炎军 

机构地区：[1]中海石油(中国)有限公司湛江分公司 [2]中海油田服务股份有限公司油田化学事业部,湛江524057

出　　处：《科学技术与工程》2013年第36期10899-10902,10934,共5页Science Technology and Engineering

摘　　要：南海西部海域的莺歌海盆地蕴含丰富的天然气,但由于层位存在高温、高压以及压力窗口狭窄,导致固井质量一直不理想。分析了莺歌海盆地固井质量差的原因;并介绍在应对高温高压固井难点时采取的技术思路;结合这些技术思路和莺歌海盆地的高温高压地层特征研发了一种新型水泥浆体系。该体系应用于莺歌海盆地的多口高温高压井,发现固井质量有较大程度的提高。这表明该体系适应莺歌海盆地高温高压固井,并为以后该地区超高温高压井的固井技术研究奠定基础。Yinggehai basin contains rich oil and gas where located in western South China Sea, because high temperature and high pressure and narrow pressure window exit at the same time, which lead to poor cementing qualification. The causes of poor cementing quality in Yinggehai Basin were analyzed; then a new cement system was introduced which was researched and developed by technicians that combined cementing technical measures and HTHP formation features. Appling the new cement system in several wells follow-up in Yinggehai basin, the cementing qualification have been improved greatly. This indicates that the new cement system is appropriate to cope with the difficulties of HTHP cementing, which can lay the foundation for research of HTHP cementing.

关 键 词：莺歌海 高温高压 固井 水泥浆 气窜 

分 类 号：TE256.6[石油与天然气工程—油气井工程]