李志勇;马攀;陶冶;薛连云;杨超;陈帅;韦火云;李鸿飞;

• 1:中国石油大学(北京)石油工程学院

• 2:中国石油大学(北京)油气资源与探测国家重点实验室

• 3:中国石油天然气股份有限公司勘探开发研究院

• 4:中国石油新疆油田分公司工程技术研究院

摘要(Abstract)：

常用冻胶阀技术很难满足深井高温作业需求.为充分发挥欠平衡钻井优势,研制一种新型冻胶液,在高温下通过交联反应,形成作用力极强的空间网状结构及与井壁的黏结力,达到封隔压力的要求;评价抗温性、密封性、耐压性及破胶性等冻胶封隔压力所需的性能.结果表明,该冻胶抗温达160℃,与管壁具有很好的黏壁性,能有效密封井下压力,耐压强度高,并且破胶彻底,破胶液利于返排,不影响后续正常的钻完井作业.该技术可在高温井中有效封隔井下欠平衡作业引起的气体涌入,应用效果良好.

关键词(KeyWords)：欠平衡钻井;冻胶阀;抗温性;耐压性;破胶性;可穿透性

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金创新研究群体项目(51221003);国家自然科学基金面上项目(51374225);; 国家科技重大专项(2016ZX05044);; 北京市高等学校青年英才计划项目(YETP0671);; 国家留学基金项目(201506445008);; 中国石油大学(北京)优秀青年教师基金项目(2462015YQ0211)

作者(Author):李志勇;马攀;陶冶;薛连云;杨超;陈帅;韦火云;李鸿飞;

Email:

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