摘要
永进油田油气资源储量丰富,但是油气埋藏深、地质条件复杂、工程事故频发,油气资源难以有效动用。为了进一步评价该油田储量和研究有效动用方式,部署了永3-侧平1井。分析认为,井壁失稳的主要原因为山前构造应力挤压、黏土矿物吸水膨胀、微裂缝扩张,采取合成基钻井液技术,提高钻井液密度,降低滤失量并加强封堵,成功遏制了地层坍塌问题,确保施工顺利进行。采取井眼轨道优化设计技术、侧钻开窗技术、钻头和钻具组合优选技术、高温地质导向技术、安全钻进技术,顺利完成了永3-侧平1井施工,累计产油已过万吨,取得了良好的开发效果,为油田钻井积累了宝贵的经验。
Yongjin oilfield is rich in oil and gas resources,but it is difficult to effectively utilize oil and gas resources due to deep burial,complex geological conditions and frequent engineering accidents.In order to explore the resource reserves and the way of development efficiently,the sidetracking horizontal well Yong 3-Ceping 1 is deployed.According to the analysis,the main causes of wellbore instability in this area are the piedmont tectonic stress extrusion,clay mineral water absorption expansion and micro fracture expansion.The synthetic based drilling fluid technology is adopted to improve the drilling fluid density,reduce the filtration rate and strengthen the plugging,which successfully curbs the formation collapse problem and ensures the smooth construction.The construction of well Yong 3-Ceping 1 was successfully completed by adopting well trajectory optimization design technology,sidetracking window opening technology,bit and BHA optimization technology,high-temperature geo-steering technology and safe drilling technology.The cumulative oil production has exceeded ten thousand tons,which has achieved good development effect and accumulated valuable experience for drilling in this area.
作者
胥豪
唐洪林
董广华
陈二丁
孙荣华
XU Hao;TANG Honglin;DONG Guanghua;CHEN Erding;SUN Ronghua(Drilling Technology Research Institute of Shengli Petroleum Engineering Co.,Ltd.,SINOPEC,Dongying,Shandong 257017,China;Xinchun Oil Production Plant of Shengli Oilfield,Company,SINOPEC,Dongying,Shandong 257001,China)
出处
《石油地质与工程》
CAS
2020年第6期84-88,92,共6页
Petroleum Geology and Engineering
基金
国家重大专项“复杂地层钻井提速提效关键工具与装备”(2016ZX05021-003)
中石化工程公司项目“永进油田深层侧钻水平井先导试验”(SG17-09X)。
关键词
永进油田
水平井
井眼轨迹
复杂情况
井壁稳定
Yongjin oilfield
horizontal wells
well trajectory
complex situation
wellbore stability
