Water drainage and gas production simulated experimental device
A simulation experimental device, drainage and gas production technology, which is applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of simulation, cannot be adjusted continuously, and is not suitable for experimental simulation of water-producing gas wells, and achieves convenient movement. Effect
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[0022] in figure 1 In the process, use the water pipe string 3 to lower the pump barrel of the drainage pump 1 below the moving liquid level in the well, use the drainage rod string 4 to lower the plunger from the water pipe string into the pump barrel, and the water pipe string to run from the casing string 2 , To form a water jacket annular space for simulating gas-water two-phase flow for gas production. The extraction rod string is lowered from the water pipe string to form a rod tube annular space for transporting well fluids and draining the polished rod at the upper end of the extraction rod string The wellhead device 5 is suspended on the donkey head of the pump 8, and the rotary motion of the reducer 9 is changed into the reciprocating motion of the suspension point by means of the four-bar linkage of the pump. The power is transmitted from the ground to the downhole via the extraction rod string 4, and the plunger of the extraction pump 1 reciprocates under the lead of...
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