METHOD OF GAS CONDENSATE WELL DEVELOPMENT AFTER FORMATION HYDRAULIC FRACTURING Russian patent published in 2024 - IPC E21B43/34 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to a method for well development after hydraulic fracturing (HF). Method consists in extraction of gas-liquid mixture from well, its cleaning and separation into gas, gas condensate and water. At that, the gas-liquid mixture is cleaned during the well development before the well operation stage, namely the gas-liquid mixture is separated from the proppant and mechanical impurities in the cleaning unit and sent to the separation unit, where it is divided into gas, gas condensate and water at pressure of not more than 125 atm. Water is supplied to the flare unit and recycled, and gas and gas condensate are sent for further processing. Volume of gas, gas condensate and water is measured by means of flow meters, and weight of proppant and mechanical impurities is determined by weighing on scales after accumulation in reservoir of cleaning unit. When determining the amount of proppant with mechanical impurities of more than 5 % of the proppant pumped into the well, the design and hydraulic fracturing technology are corrected.

EFFECT: increased production of gas and gas condensate, as well as obtaining additional data on efficiency of hydraulic fracturing due to treatment of gas-liquid mixture prior to operation of the well.

7 cl, 1 dwg