Development Status and Application of Under Pressure Operation Equipment Technology

Abstract

Abstract With the development and development of unconventional oil and gas reservoirs, the problem of difficult completion and workover has gradually become apparent, and pressured operations have gradually been valued by major oilfields and enterprises. In order to promote the development of pressure-related workover related equipment and technology in our country, and overcome the difficulties of late start and little experience, this article focuses on the development status of pressured operation. The main contents include: a brief introduction to the dangers of annulus pressure and the distribution statistics of annulus pressure wells at home and abroad; introduction to the development process of annulus operations; and introduction of a series of pressure equipment products that have matured or formed an annulus at home and abroad, and The research status of the key components of the pressure-proof operating equipment, such as the blowout preventer and the floating slip, is summarized. Finally, China’s domestically developed independent research and development of pressure-operating equipment is analyzed and considered. Based on the operating concept, enhance the trust and confidence of enterprises and oilfields in pressured operations; technical development should be oriented towards integration, characterization, and digitization, and systemized and serialized pressured operating equipment and process technology. The combination of pressure operation technology and equipment with repair and drill forms a drill-finish-repair integrated pressure operation system.