Abstract: Accurate managed pressure drilling (MPD) is an international frontier technology to solve the drilling bottleneck of complicated pressure system, which can effectively control the complicated downhole conditions, such as well kick, leakage, collapse and stick. To meet China’s oil and gas development strategic demand and improve the country’s international competitiveness for drilling engineering technological service, CNPC Drilling Research Institute launched its independent research project and made important breakthroughs in accurate MPD process technology and equipment eight years later. The result is innovative in terms of theoretically technology and reaches the latest international level. It also leads the world in the areas of under-balanced MPD process, working condition simulation, and system evaluation. It has been successfully put into industrialized application and service in China’s Tarim, Huabei and Sichuan-Chongqing regions, completely replacing foreign products of the kind. The technological service fee is lowered by more than 70 percent as compared to foreign companies. The drilling bottleneck of “kick-leakage co-existence” is solved effectively with remarkable achievements in discovery and protection of reservoirs. The research team has also accumulated organizational and managerial experiences, including identification of correct research orientation, attraction of high-level technological talents, creation of qualified innovative team, making full use of laboratories and development of innovation culture.

摘要： 精细控压钻井技术是解决复杂压力体系钻井难题的国际前沿技术，可有效控制井涌、漏失、坍塌和卡钻 等井下复杂。为适应我国油气发展的战略需求，提升钻井工程技术服务国际竞争力，中国石油集团钻井院组织科研攻 关团队自主研发，历经8 年努力，在精细控压钻井成套工艺技术装备等方面取得重大突破，填补了国内空白。该成果 在理论技术上有重大创新，整体达到国际先进水平，欠平衡控压钻井工艺、工况模拟与系统评价方法国际领先。在我 国塔里木、华北、川渝等地区成功开展工业化应用与服务，全面替代国外同类产品，技术服务费用同比国外降低70% 以上，有效解决“溢漏并存”钻井难题，储层发现和保护效果明显。科研团队在创新中积累了有效的组织管理经验， 包括把握正确科研方向、聚集高水平科技人才、建设好创新团队、发挥实验室作用、培育创新文化等。

关键词: 精细控压钻井, 欠平衡控压, 技术创新, 战略需求, 科技管理