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玉北地区深井快速钻井技术
引用本文:易浩,白彬珍,赵志国,李平.玉北地区深井快速钻井技术[J].石油钻探技术,2011,39(6):27-30.
作者姓名:易浩  白彬珍  赵志国  李平
作者单位:1. 中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐,830011
2. 中国石化石油工程技术研究院,北京,100101
3. 中国石化西北油田分公司工程技术处,新疆乌鲁木齐,830011
4. 中国石化西北油田分公司科技与外事处,新疆乌鲁木齐,830011
摘    要:玉北地区是中国石化西部地区的重点勘探开发区域,玉北1井在奥陶系鹰山组地层钻遇良好油气显示,但该地区古近系膏岩层易蠕变缩径、二叠系火成岩地层易垮塌掉块、古生界地层可钻性差,导致钻井过程中复杂情况多、机械钻速低、钻井周期长。为此,通过处理分析测井资料和岩心三轴应力测试数据,建立了玉北地区地层压力剖面和地层可钻性剖面。利用地层压力剖面对井身结构进行了优化,利用地层可钻性剖面优选了钻头,利用优选出的PDC钻头与螺杆钻具配合进行了复合钻井试验。根据不同地层的特性和失稳机理,优选出了强抑制性聚磺钻井液和强抑制非渗透钻井液2种防塌钻井液。钻井实践表明,采用优化后的井身结构,利用优选出的PDC钻头与螺杆钻具配合进行复合钻井,使用优选出的防塌钻井液,钻井过程顺利,没有出现缩径、阻卡和垮塌掉块等复杂情况,平均机械钻速提高了22.6%~28.6%,单井钻井周期缩短了47.00~90.78d。

关 键 词:快速钻井  PDC钻头  螺杆钻具  防塌钻井液  玉北地区

Faster Drilling Technology in Yubei Area
Yi Hao,Bai Binzhen,Zhao Zhiguo,Li Ping.Faster Drilling Technology in Yubei Area[J].Petroleum Drilling Techniques,2011,39(6):27-30.
Authors:Yi Hao  Bai Binzhen  Zhao Zhiguo  Li Ping
Affiliation:Yi Hao1,Bai Binzhen2,Zhao Zhiguo3,Li Ping4 (1.Research Institute of Petroleum Engineering,Sinopec Northwest Oilfield Branch,Urumqi,Xinjiang,830011,China,2.Sinopec Research Institute of Petroleum Engineering,Beijing,100101,3.Engineering Technology Department of Sinopec Northwest Branch,4.Technology and Foreign Affairs Department of Sinopec Northwest Branch,China)
Abstract:Yubei is an important exploration and development area of Sinopec western regions.Well Yubei 1 has good oil and gas show in Ordovician Yingshan formation.While due to the creep and shrinking in Paleogene gypsum formation,collapse in Permian Igneous rocks and poor rock drillability in Paleozoic formation,a lot of drilling problems occurred,such as low penetration rate and long drilling time.Therefore,research and practice to increase drilling rate were conducted.Formation pressure profile and rock drillabili...
Keywords:faster drilling  PDC bit  screw drill tool  anti-sloughing drilling fluid  Yubei Area  
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