STAND FOR RESEARCHING GAS-HOLDING CAPACITY OF COMPOUNDS USED IN UNDERGROUND WELL REPAIR Russian patent published in 2021 - IPC E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the field of operation and underground repair of oil and gas wells and can be used to study the conditions of gas rise in vertical or horizontal wells filled with various process fluids. The stand includes a central lift column, which is installed in a vertical position inside the outer column, and both of these columns are equipped with pipelines for removing the gas-liquid mixture. It also includes a liquid supply and control unit connected to the liquid supply pipeline, a gas supply and flow control unit connected to the gas supply pipelines to the stand and gas discharge from the stand. In this case, the lower part of the outer column is made in the form of a horizontal pipe, on the upper and lower surfaces of which holes are made, into which the gas line fittings are installed, on which a pressure gauge, a reducer and a gas cylinder are installed in series. In the upper part of the outer column, a cover with holes is fixed, with the possibility of removal, through which, by means of three-way valves, a gas outlet control line with a gas meter is connected, a liquid supply line with a pump and a cylinder-container with a liquid installed in series on it, and a liquid outlet line, which connected to the process tank.

EFFECT: creation of a stand that increases efficiency of killing oil and gas wells during their underground repair.

1 cl, 1 dwg