无固相钻完井液降解技术研究进展  

Research Progress of Degradation Technology for Solid-free Drilling and Completion Fluid

作　　者：班国 徐江[2] 王涛 刘卫红[4] 周书胜 Ban Guo;Xu Jiang;Wang Tao;Liu Weihong;Zhou Shusheng(Sinopec Jianghan Oilfield Service Corporation,Qianjiang 433100;Sinopec Research Institute of Petroleum Engineering,Beijing 100101;CNOOC(China)Shanghai Branch,Shanghai 200335;Petroleum Engineering College,Yangtze University,Wuhan 430100;Jingzhou Jiahua Technology Co.,Ltd.,Jingzhou 434000,China)

机构地区：[1]中石化江汉石油工程有限公司,湖北潜江433100 [2]中国石油化工股份有限公司石油工程技术研究院,北京100101 [3]中海石油(中国)有限公司上海分公司,上海200335 [4]长江大学石油工程学院,湖北武汉430100 [5]荆州嘉华科技有限公司,湖北荆州434000

出　　处：《广东化工》2022年第9期62-63,83,共3页Guangdong Chemical Industry

基　　金：湖北省重点研发计划项目“抗高温环保型钻井液用聚合物材料研究与应用”,项目号:2020BAB072。

摘　　要：钻完井过程中,为了降低钻完井液侵入地层带来的储层伤害,使无固相钻完井液技术得到快速发展。无固相钻完井液含有大量的聚合物增粘剂、降滤失剂,仍会污染储层。为了提高储层渗透率,减低聚合物对储层的伤害,本文综述了无固相钻井液完井工艺、无固相钻完井液破胶技术(包括氧化剂破胶、生物酶破胶)、无固相钻完井液酸解技术以及无固相钻完井液自降解技术,并展望了无固相钻完井液降解技术发展趋势。To reduce reservoir damage caused by drilling and completion fluid intrusion into the formation during the process of drilling and completion,the solid-free drilling and completion fluid technology had been developed rapidly.The solid-free drilling and completion fluids contained a large amount of polymer viscosifier and fluid loss reducer,which can still contaminate the reservoir.In order to improve the reservoir permeability and reduce the damage to reservoir,the solid-free drilling and completion technology,degumming technology of solid-free drilling and completion fluid(including oxidant degumming,biological enzyme degumming),solid-free drilling and completion fluid acid hydrolysis technology and solid-free drilling and completion fluid self-degradation technology were summarized in this paper.And the development trend of solid-free drilling and completion fluid degradation technology was expected.

关 键 词：无固相 钻完井液 储层保护 钻井安全 自降解技术 

分 类 号：TE254[石油与天然气工程—油气井工程]