关键词: 气测录井, 脱气器, 自浮, 浮箱式脱气筒, 配重块, 承重钢丝绳, 限位绳

Abstract: The traditional degasser generally uses tools such as screws and hinges to adjust the height of the degasser. When the displacement and density of drilling fluid change, it needs to be adjusted manually, and the timeliness is poor, resulting in dedrilling fluid volume unstably and affecting the accuracy of gas logging data. For this reason, a mechanical self-floating electric degasser has been developed. For different density drilling fluids with different mass counterweight blocks, with the increase or decrease of drilling fluid density, the counterweight blocks are increased or decreased appropriately.When the drilling fluid discharge changes, the degasser can rise and fall automatically, and the degasser degassing fluid volume is basically constant, effectively reducing the influence of drilling fluid displacement and density changes on the gas measurement value. Compared with the traditional electric degasser, the mechanical self-floating degasser does not change the motor and power supply mode of the traditional degasser, and does not change the structure of the traditional degasser, and the height of the degasser can be adjusted automatically. The cost is low, the labor intensity is reduced, and the quality of gas logging data is improved.

Key words: gas logging, degasser, self-floating, float degassing cylinder, counterweight block, load-bearing wire rope, limit rope