摘要
渤海绥中36-1、旅大5-2油田属于特高孔、特高渗储层,经过二次调整开发地层压力体系复杂,钻井过程中要钻遇到多种复杂地层,存在地层压力、地层状态、岩性和地层分层深度等不确定等因素,制约了钻井时效。为了加快勘探开发进程,研究和开发了钻井液提速剂,降低了钻屑对钻具的吸附,改变岩石表面润湿性,提高钻井液润滑性能,从而提高钻井速度。提速剂在渤海油田A6井、A9井、A12井、A18、A22井得到了应用,从应用的效果来看,试用的5口井平均倒划眼率比原来降低了21.6%。
The Suizhong 36-1 oilfield and Luda 5-2 oilfield in Bohai Sea are ultra-high porosity and ultra-high permeability reservoir,and the formation pressure system is complex after secondary adjustment and development,and a variety of complex formations need to be drilled during the drilling process,and there are uncertain factors such as formation pressure,formation state,lithology and formation stratification depth,which restricts the drilling timeliness.In order to speed up the process of exploration and development,the drilling fluid speed-up agent was researched and developed to reduce the adsorption of drilling cuttings on drilling tools,change the wettability of the rock surface,and improve the lubrication performance of drilling fluid,so as to increase the drilling speed.The speed-up agent was applied in well A6,A9,A12,A18 and A22 in Bohai oilfield,and the average reversed reaming off rate of the five wells was reduced by 21.6%compared with the original.
作者
何斌
王荐
HE Bin;WANG Jian(China National Offshore Oil(China)Co.,Ltd.Tianjin Branch,Tianjin 300452,China;Yangtze University,Jingzhou Hubei 434000,China;Hubei Oilfield Chemical Industry Technology Research Institute Co.,Ltd.,Jingzhou Hubei 434000,China)
出处
《当代化工》
CAS
2024年第9期2230-2234,共5页
Contemporary Chemical Industry
基金
中央引导地方科技发展资金项目(项目编号:2020ZYYD010)
中海油集团公司科研项目(项目编号:CCL2023TJD0NST0817)。
关键词
钻井提速
润湿反转
提速剂
承压封堵
储层保护
Drilling speed
Wetting reversal
Speed-increasing agent
Pressure plugging
Reservoir protection
