METHOD FOR OPERATION OF GAS AND GAS CONDENSATE WELLS Russian patent published in 2023 - IPC E21B43/12 

FIELD: oil and gas industry.

SUBSTANCE: operation of gas, gas condensate and oil wells. The method for operation of gas and gas condensate wells, including flooded ones, consists in the fact that a pipe support and a valve are additionally installed on the X-mas tree above the cross. Produce calculation of conditions for the lowering of a flexible long-length production string (FLPS) and operation of the well in the annulus. Calculate the minimum allowable flow rate Q_min in the well for the current tubing (TBG), which ensures continuous removal of fluid in this TBG. Downhole pressure is determined there. Determine the flow rate in the well Q_well. The values of the minimum flow rate Q_min and the estimated flow rate Q_well are compared and then a conclusion is made about the need to descent the FLPS into the well. Moreover, the lowering is made without killing the well. Management is carried out manually. Further operation of the well takes place along the annulus formed between the TBG and FLPS until the termination of the conditions for ensuring the removal of fluid through the casing-tubing annulus (CTA).

EFFECT: ensure the conditions for the removal of liquid, the prevention of procedures associated with well killing.

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