New Heave Compensation System Design of Swim Car Hook and Motion Analysis
Qing-you LIU1, Yang TANG2, Chong-jun HUANG3, Wei LI2
1. State Key Laboratory of Oil and Gas Geology and Exploration, Southwest Petroleum University, Chengdu, Sichuan 610500, China 2. School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China 3. Drilling & Production Engineering Research Institute of Chuanqing Drilling Engineering Co., Ltd., CNPC, Guanghan, Sichuan 618300, China
The drill string heave compensation system is an important part of offshore drilling equipment. During the operation, it can compensate heave motion of the platform, ensure a stable bottom hole pressure while drilling, keep drilling efficiency, protect the life of the drill bit and drill pipe, and improve drilling safety. At present, the drill string heave compensator device needs to be imported, and the price is very expensive, so the development of heave compensation system for offshore drilling platforms with our own intellectual property is imperative. On the basis of heave compensation device-related information and analyses on the structure, working principle and application of the existing drill string heave compensation system, considering the advantages and disadvantages of different heave compensation methods in practical operations, the new design scheme is proposed for heave compensation device. The rack-and-pinion scheme is selected for the new heave compensation device after comparison. Motion analysis on the rack-and-pinion device provides a reference for the structural design and simulation analysis of new heave compensation systems.
