• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IADC/SPE drilling conference >Investigation of Smaller-Footprint Drilling System;Ultrahigh-Rotary-Speed Diamond Drilling Has Potential for Reduced EnergyRequirements
【24h】

Investigation of Smaller-Footprint Drilling System;Ultrahigh-Rotary-Speed Diamond Drilling Has Potential for Reduced EnergyRequirements

机译：小脚印钻探系统的研究;超高转速金刚石钻探具有降低能源需求的潜力

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper describes proof of concept testing of an ultra-highrotary speed drilling system and its applicability to hard rockdrilling performance. The drilling system includes the use ofthin-walled diamond bits driven at extremely high rotationalspeeds. This program is partly funded by the DOE. Resultsfrom this study demonstrate the feasibility, verification, andcharacterization of the system combining high speed andsharp, low depth of cut diamond bits. This is leading edgetechnology.The review of industry practices has shown that in general,rotational speeds above 1000 RPM have not been utilized inthe drilling of oil and gas wells. Rotational speeds from 1000to 50,000 RPM are used to machine or remove hard materialsin other applications. These materials are removed efficientlyusing high RPM and small thrust loads. The drilling andcoring industry does not currently practice this technology.The paper presents data and resulting drilling performance of anumber of specially designed thin wall diamond core heads ina variety of rock formations tested at bench scale.The results show rates of penetration in different rock typeswhile calculating expended energy. Most promising arespecific energies that decrease at higher face velocities,possibly showing that rock failure mechanisms change. Thesignificance of a smaller footprint drilling system is the abilityto drill into rock with low weights on bit and at low energylevels while maintaining high rates of penetration. For manyoperators, high well construction costs occur in hard rockareas. An improvement in penetration rates while minimizingexpended energy is an opportunity to reduce drilling costs and drastically improve project economics. The estimated annualcost to drill hard rock in North America is in excess of $1.2billion.Testing of full-face bits is the next step. Future applicationsmay include slim hole drilling with downhole electrical, PDM,or turbine drives though some operators view betterperformance is also possible in conventional hole sizes such as8-1/2 inch. Adaptation to the oilfield will require innovativebit designs for full hole drilling or continuous coring and theeventual development of these downhole ultra-high speeddrives.
机译：本文介绍了超高概念测试的证明 转速钻井系统及其在硬岩中的适用性 钻井性能。钻孔系统包括使用 以极高的旋转力驱动薄壁金刚石钻头 速度。该计划部分由美国能源部资助。结果 这项研究证明了可行性，验证和 结合高速和高速的系统特性 锋利的，低深度的切割钻石钻头。这是领先优势 技术。 对行业惯例的审查表明，总体而言， 尚未使用高于1000 RPM的转速 石油和天然气井的钻探。转速从1000起 至50,000 RPM用于加工或去除硬质材料 在其他应用程序中。这些材料被有效去除 使用高RPM和小推力载荷。钻孔和 取芯行业目前尚未实践该技术。 本文介绍了一个钻探的数据和由此产生的钻探性能。 专门设计的薄壁金刚石芯头数量 在工作台规模下测试的各种岩层。 结果显示不同类型岩石的渗透率 同时计算消耗的能量。最有前途的是 在较高的面速下会降低的比能， 可能表明岩石破坏机制发生了变化。这 占地面积较小的钻井系统的重要意义在于其能力 以低的重量和低的能量钻入岩石 级别，同时保持较高的渗透率。对于很多 运营商，在硬岩中会发生高昂的建造成本 地区。渗透率提高，同时最小化 消耗能源是降低钻井成本并大大提高项目经济性的机会。估计年度 在北美钻硬岩的成本超过1.2美元 十亿。 下一步将测试全脸钻头。未来的应用 可能包括使用井下电气设备进行的细孔钻探，PDM， 或涡轮驱动器，尽管一些操作员认为更好 在常规孔尺寸（例如， 8-1 / 2英寸。适应油田将需要创新 用于全孔钻探或连续取芯的钻头设计，以及 这些井下超高速的最终发展 驱动器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号