青海油田漏失性油藏选择性固井技术
金凯，牛刚强
（中国石油青海油田公司钻采工艺研究院，甘肃 敦煌 736202）
摘要： 青海油田英东区块经过多年开采，产层压力降低，固井时井漏风险增加，易造成水泥浆对目的层的污染。开
展选择性固井技术，可实现提高固井质量与保护油气层的统一。介绍了青海油田选择性固井技术的原理及特点、选择性
固井装置结构及附件工艺，青海油田选择性固井现场施工规范、应急预案以及现场应用情况。这一技术已在英东一号构
造上盘A3 层系开展试验，选择性固井装置均顺利入井，未遇到其他复杂情况。
关键词： 青海油田；井漏；选择性固井技术；储层保护；封隔器
中图分类号： TE242     文献标识码： A     文章编号： 2095-0802-(2021)08-0153-03
Selective Cementing Technology for Leaky Reservoirs in Qinghai Oilfield
JIN Kai, NIU Gangqiang
(Drilling & Production Technology Research Institute, PetroChina Qinghai Oilfield Company, Dunhuang 736202, Gansu, China)
Abstract: After years of exploitation in the Yingdong block of Qinghai Oilfield, the pressure of production layer decreases and
the well leakage risk increases during cementing, which is easy to cause the pollution of cement slurry to the target layer. Carrying
out selective cementing technology can achieve the unity of improving cementing quality and protecting oil and gas reservoirs.
This paper introduced the principle and characteristics of selective cementing technology, the structure and accessory technology
of selective cementing device in Qinghai Oilfield, as well as the site construction specification, emergency plan and field application
of selective cementing of Qinghai Oilfield. This technology has been tested in A3 series of hanging wall of Yingdong No.1
structure, and the selective cementing devices have been successfully put into the well without causing other complications.

Key words: Qinghai Oilfield; leakage; selectivity cementing technology; reservoir protection; packer