潜江凹陷页岩油蚌页油1HF井钻完井技术

Drilling and Completion Technology of Shale Oil Beng Shale 1HF Well in Qianjiang Depression

江汉盆地潜江凹陷经勘探发现含有极其丰富的油气资源,具有很大的开发潜力。蚌页油1HF井属于页岩油井,位于潜江凹陷首口长水段,它的开采难度非常大,在开采中容易发生卡钻、坍塌等问题,并且其自身也具有盐膏层发育、储层薄、水平段长等地质特点。为了更好完成该段油气资源的开发利用,相关施工和技术人员结合具体的开采难题,综合各项技术措施,选择从井身结构优化、水泥浆固井、改良钻井液等多方面入手,顺利完成了潜江凹陷长水平段页岩油井的钻探,为今后更好完成潜江凹陷页岩油的勘探开发提供了借鉴。

Qianjiang Sag in Jianghan Basin is rich in oil and gas resources and has great development potential. Beng Shale Oil Well 1HF belongs to shale oil well,located in the first long water section of Qianjiang Depression. It is very difficult to mine.Drilling sticking and collapse are prone to occur in mining,and it has its own geological characteristics such as salt-gypsum layer development,thin reservoir and long horizontal section. In order to better complete the development and utilization of oil and gas resources in this section,relevant construction and technical personnel combined with specific problems of exploitation. By synthesizing various technical measures,this paper chooses to start with optimization of well bore structure,cement slurry cementing and improvement of drilling fluid. The drilling of shale oil wells in the long horizontal section of Qianjiang Sag has been successfully completed,which provides a reference for better exploration and development of shale oil in Qianjiang Sag in the future.