摘要
贝克休斯公司2017年在美国怀俄明州DJ盆地仅用3.5d就成功完钻一口5405m深的页岩水平井。分析该井的成功经验,包括优化井身结构、应用高效钻头、造斜段和水平段改用油基钻井液、应用高造斜率旋转导向钻井系统、强化参数钻井、远程决策中心等。美国在页岩水平井钻井中,单井段一趟钻已成为常态,双井段一趟钻推广应用,多井段一趟钻持续增加,由此促进了钻井周期大幅缩短、钻井成本大幅下降。一趟钻是一项系统工程,也是水平井提速降本的牛鼻子工程。我国在一趟钻技术应用上与美国相比还存在一定差距,今后应充分认识一趟钻的必要性和可能性,加大推广应用力度,在技术和管理上要优化钻井方案设计、应用优质高效钻头、出台推广和激励办法、建立信息共享平台、推广并升级远程决策支持中心,以促进页岩气规模效益开发。
In 2017, Baker Hughes used only three and a half days to complete drilling of a shale horizontal well with a depth of 5405 meters in DJ Basin, Wyoming State, USA. This paper analyzes the experience of this well’s success, including optimization of wellbore structure, application of high-efficiency drilling bit, use of oil-base drilling fluid for angle buildup section and horizontal section, application of buildup rate RSS, intensified drilling parameters, and use of the remote decision-making center. In the drilling of shale horizontal well in the United States, one-trip drilling is quite common for single well section, widely used for dual well sections and on the rise for multiple well sections. As a result, the drilling period is significantly shortened while the drilling cost is dramatically reduced. One-trip drilling is a project of system and also a key project for drilling horizontal wells at a higher speed and a lower cost. China is left behind in application of one-trip drilling technology as compared to the United States. It is necessary to pay attention to the necessity and likeliness of one-trip drilling and promote application of this technology. It is necessary to adopt a series of technological and managerial measures to promote large-scale shale gas development, such as optimization of drilling plan design, application of good-quality and high-efficiency drilling bit, release of promotion and incentive methods, establishment of information sharing platform, and modernization and remote decision-making center.
作者
杨金华
郭晓霞
Yang Jinhua;Guo Xiaoxia(Petroleum Technology Branch,CNPC Economics & Technology Research Institute,Beijing 100724,China)
出处
《石油科技论坛》
2018年第6期32-35,60,共5页
PETROLEUM SCIENCE AND TECHNOLOGY FORUM
基金
国家科技重大专项“大型油气田及煤层气开发”子课题“陆上油气勘探技术发展战略研究”(编号:2017ZX05001-005)
关键词
一趟钻
页岩水平井
提速降本
强化参数钻井
地质-油藏-工程一体化
one-trip drilling
shale horizontal well
higher speed and lower cost
intensified parameter drilling
geologicalreservoir- engineering integration
作者简介
第一作者:杨金华,1963 年生,1984年毕业于西南石油大学钻井工程专业,高级工程师,长期从事钻井技术调研与发展战略研究工作。E-mail:yangjh@cnpc.com.cn
