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近日,从中国石油集团渤海钻探有限公司传出喜讯:刚刚完钻的苏里格苏76-1-20H井,不仅刷新苏里格区块多项指标,而且以2 856m水平段长度刷新国内陆上水平井最长水平段纪录。苏76-1-20H井位于苏76区块南部,是渤海钻探在苏里格气田部署的一口三开超长水平段水平井。在该井应用“苏里格地区小井眼长水平段深水平井钻井液技术研究”科研成果,选用优质钻井液,精心维护和调整,五级净化,保持优质性能,定期短起下钻和技术划眼,解决了长水平段泥岩坍塌和送钻托压等难题。承钻的50251钻井队密切与油气开发公司和协作单位沟通配合,提高砂岩钻遇率,砂岩钻遇率达到95.86%,降低了施工难度,
Recently, the news from CNPC Bohai Drilling Co., Ltd. has spread the good news: the newly completed Sulige Su 76-1-20H well not only refreshed a number of indicators of the Sulige block but also refreshed the Mainland onshore water at a length of 2 856m Hirai record of the longest level. The Su-76-1-20H well, located in the southern part of the Su-76 block, is a horizontal well drilled by the Bohai Sea drilling station in the Sulige gas field. In the well, “Sulige area of small horizontal well long horizontal well drilling fluid technology research” research results, the selection of high-quality drilling fluid, well-maintained and adjusted, five purification, to maintain high-quality performance, regular short-term drilling and Technical planning, to solve the long horizontal section of mudstone collapse and send drill pressure and other problems. Drilling team of 50251 drills closely cooperated with oil and gas development companies and cooperative units to improve the rate of sandstone drilling. The drilling rate of sandstone reached 95.86%, which reduced the difficulty of construction,