控压钻井技术与装备现场试验

摘要

Precise managed pressure drilling (MPD) technology is a key technology to ensure the safe drilling in narrow safety density window formations and pressure-sensitive formations. The technology and equipment are mature abroad, but the service price is rather high. The prototype research was completed during the nation’s 11th Five-Year Plan Period, but the prototype was not brought under ifeld test nor put into industrialized application. To push on its localization and industrialization, so as to solve similar drilling problems in strategic oil/gas ifelds in Tarim, Sichuan and Chongqing, China National Petroleum Corporation has set up a project for ifeld test of precise MPD technology and equipment. Through top-design of“4511”targets, reasonable effective project organization, strengthened nodal control, and strict process monitoring, the complete set of MPD technology and equipment is conifgured, a stride from the engineering prototype to commercial application of MPD is realized, and a fast lane for the conversion of MPD innovation into production forces is built. This MPD technology and equipment has been widely used in Sichuan and Chongqing, Jidong, Tarim and overseas blocks to support the petroleum exploration and development, resulted in remarkable economic efifciencies. It has embodied CNPC innovation capacity, hoisted CNPC engineering technology to a new level and enhanced CNPC competitiveness at overseas markets.%精细控压钻井技术是解决窄安全密度窗口地层、压力敏感性地层安全钻井问题的关键技术。国外已有成熟技术与装备，但服务价格高昂，国内“十一五”期间已完成样机研制，但未进行现场试验和规模化应用。为推进该钻井技术与装备的国产化和工业化，低成本解决国内塔里木、川渝等油气战略接替区类似安全钻井难题，中国石油天然气集团公司设立了精细控压钻井技术与装备现场试验项目。通过顶层设计“4511”目标，建立合理高效的项目组织，强化节点控制，加强过程监管，完成了精细控压钻井技术与装备的完善定型，实现了由工程样机到工业应用的重大跨越，打通了控压钻井创新成果向生产力转化的快车道。该技术和装备在川渝、冀东、塔里木油气田和海外区块规模化推广应用，支撑了相应区块的勘探开发，创造了显著的经济效益，彰显了集团公司的技术创新能力，提升了工程技术水平和海外市场的竞争力。