Air cylinder driving rail type foam scrubbing rod releasing device

Abstract

The invention relates to an air cylinder driving rail type foam scrubbing rod releasing device applied to the field of drainage and gas recovery of natural gas wells. An upper cover plate is mounted and welded to the top of a shell, a material loading hole is formed in the center of the upper cover plate, a lower cover plate is mounted and connected to the bottom of the shell through bolts, a material releasing hole is formed in the center of the lower cover plate, and an upper limiting wheel and a lower limiting wheel are mounted in the shell. An annular rail is arranged on the upper limitingwheel and the lower limiting wheel, material loading barrels are sequentially arranged in the annular rail, a driving shaft is provided with a pusher claw, and the driving shaft is mounted on the upper limiting wheel and the lower limiting wheel. The pusher claw clamps the material loading barrels, a transportation cylinder drives a ratchet wheel to provide power, the ratchet wheel drives the material loading barrels to move in the rail through the driving shaft, and when the material loading barrels move to the position of the material releasing hole, a foam scrubbing rod falls into a rockshaft through the material releasing hole. Compared with the prior art, the foam scrubbing rod releasing device is arranged to be aligned with a well mouth, the functions of remotely-controlled automatic releasing, one-time installation and repeated releasing of the foam scrubbing rod are achieved, the foam scrubbing rod releasing device is simple in operation, safe and reliable, the labor intensityis relieved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of drainage and gas recovery of natural gas wells, in particular to a cylinder-driven rail-type foam row rod feeding device. Background technique [0002] In the process of natural gas exploitation, due to the gradual decrease of gas reservoir storage pressure and natural gas flow velocity, the formation water or condensate of the gas well cannot be carried out of the wellbore by the natural gas flow, resulting in wellbore fluid accumulation, seriously affecting the normal production of the gas well, and even Water flooding of gas wells, rapid and effective removal of fluid accumulation in the wellbore of gas wells has become one of the main tasks of gas production workers. The foam row rod feeding device is mainly used for the wellhead of gas production. By putting the foam row rod into the gas well, it dissolves and foams with the water in the gas well, and the natural gas is taken out of the gas well to realize the...

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Problems solved by technology

[0003] At present, the implementation of solid foam drainage and gas recovery technology in most gas wells requires on-site operation by staff, and the foam row sticks fall by their own gravity, which is labor-intensive and poses safety hazards to the operators. Irregularity and other shortcomings make it difficult to realize automatic management of liquid-loaded gas wells, which affects the effect of foam drainage and gas recovery technology, increases the cost of drainage and gas recovery operations, and makes it impossible to remove wellbore fluid well and affect the normal production of gas wells, especially For marginal wells with relatively small gas production, the above problems are particularly serious

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