低固相超高温钻井液的研究及应用  

Study and application of low-solid and ultra-high temperature drilling fluid

作　　者：田惠 张克正 史野 黄臣 李秀妹 何鹏 TIAN Hui;ZHANG Kezheng;SHI Ye;HUANG Chen;LI Xiumei;HE Peng(Mud Service Company,BHDC,Tianjin 300280,China)

机构地区：[1]中国石油渤海钻探工程有限公司泥浆技术服务分公司,天津300280

出　　处：《石油化工应用》2020年第10期35-39,共5页Petrochemical Industry Application

基　　金：中国石油天然气股份有限公司重大科技专项“华北油田持续有效稳产钻完井关键技术研究与应用”,项目编号:2017E-1501。

摘　　要：针对华北油田杨税务潜山地区储层温度极高,压力中等偏低,且存在大段非均质碳酸盐,目前周边井尚无密度1.20 g/cm^3、抗温220℃左右水基钻井液体系成功应用实例的问题,研发了一套低固相超高温钻井液体系。该体系密度在1.10 g/cm^3~1.20 g/cm^3可调、抗温可达220℃,流变性良好,包被抑制性、携岩性和封堵造壁性强。该体系应用于安探4X井超高温井段,成功解决了低密度情况下低固相难实现的难题,取得了较好的应用效果。这为该区块其他超高温井的顺利钻进积累了丰富的经验,也为后续华北油田超深井的施工打下了坚实的基础。Aimed at the questions as ultra-high reservoir temperature,medium to low pressure,large segment heterogeneous carbonate,and no successful application in the surrounding wells in Yangshuiwu area,a low-solid and ultra-high temperature drilling fluid was developed with densities between 1.10 g/cm^3~1.20 g/cm^3,ultra-high temperature resistance reaching 220℃,good properties of rheology,inhibition and filtration,which solved the problems as large lifting force,tiny returned sand and polymers can't anti ultra-high temperature in well Antan 4X.It had accumulated rich experience for the other ultra-high temperature wells in this area and laid a solid foundation for the subsequent ultra-deep wells in Huabei oilfield.

关 键 词：杨税务潜山 超高温 水基钻井液 低固相超高温钻井液 安探4X井 

分 类 号：TE254.3[石油与天然气工程—油气井工程]