EXPLORATION OF THE PACKING ELEMENT OF THE ANNULAR BOP

Abstract

The article delved into exploring various structural configurations of clamping nodes in universal preventers, examining both conical and spherical designs. Anti-discharge equipment is essential for averting well blowouts by sealing well openings and maintaining back pressure during drilling, operation, and testing phases. The reliability and durability of this equipment must undergo rigorous testing to ensure safety. Universal preventers not only manage the wellhead but also facilitate pipeline rotation, vertical movement, and additional pipeline insertion into the well. They effectively seal the wellhead even with identical pipe parts. The sequence of technological processes must be carefully chosen and monitored when selecting preventers to ensure high reliability, longevity, and operational efficiency in oil and gas well activities. One of the critical components in anti-discharge equipment is the clamp knot. Let's delve into the clamp knot of universal preventers. The clamp comprises numerous metal inserts evenly spaced along its length, creating a tight seal at the wellhead by compressing the flexible clamp element. Hydraulic pressure drives a piston to close and open the clamping element. As a result, the clamping element of the universal preventer experiences varying loads in direction and magnitude. A spherical structural design in the clamping element provides better resistance to changing stresses compared to a conical design due to its spherical surface, resulting in uniform force distribution. However, this structural design's drawback is increased wear on the elastic sealing joint due to friction during pipeline movement. Additionally, pressure forces during piston upward movement impact the sealing element's tightness, functionality, and lifespan. Keywords: Anti-discharge equipment, locking element, universal preventer, conical locking device.