专利汇可以提供CONTINUOUS FLOW DRILLING SYSTEMS AND METHODS专利检索,专利查询,专利分析的服务。并且In one embodiment, a method for drilling a wellbore includes injecting drilling fluid into a top of a tubular string disposed in the wellbore at a first flow rate. The tubular string includes: a drill bit disposed on a bottom thereof, tubular joints connected together, a longitudinal bore therethrough, and a port through a wall thereof. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The cuttings and drilling fluid (returns) flow to the surface via an annulus defined between the tubular string and the wellbore. The method further includes rotating the drill bit while injecting the drilling fluid; remotely removing a plug from the port, thereby opening the port; and injecting drilling fluid into the port at a second flow rate while adding a tubular joint or stand of joints to the tubular string. The injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the joint or stand to the drill string. The method further includes remotely installing a plug into the port, thereby closing the port. The first and second flow rates may be substantially equal or different.,下面是CONTINUOUS FLOW DRILLING SYSTEMS AND METHODS专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种高分子管材加工用钻孔装置 | 2020-05-08 | 508 |
一种用于金属工具的具有收集功能的稳定型打孔设备 | 2020-05-11 | 942 |
一种整体式桥墩加固结构及其施工方法 | 2020-05-11 | 520 |
一种机械加工用高效钻孔机 | 2020-05-08 | 539 |
一种锥型能量调控装置及基于该装置的曲面基础竖直孔爆破开挖方法 | 2020-05-08 | 392 |
一种具有收集碎屑且便于打斜孔的电钻 | 2020-05-08 | 793 |
一种线路板基板微钻设备 | 2020-05-08 | 40 |
一种新型钻床用碎屑收集装置 | 2020-05-08 | 158 |
用于吊顶天棚和混凝土屋面的钻孔机构 | 2020-05-08 | 43 |
一种财务票据装订机专用钻刀 | 2020-05-08 | 876 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。