DEVELOPMENT METHOD OF GAS WELL UNDER CONDITIONS OF ABNORMALLY LOW PRESSURE OF FORMATION (VERSIONS) Russian patent published in 2012 - IPC E21B43/25 

FIELD: oil and gas industry.

SUBSTANCE: according to the first version of gas well development method gas is supplied from group of operation wells with low pressure to transportable compressor plant (TCP), where gas is cleaned from mechanical impurities and water, compressed to TCP operating pressure and supplied to booster station by pipeline. At the same time service water is pumped to booster station by means of the first pump unit. Produced gas-liquid mixture (GLM) is compressed in booster station to pressure value equal to value of booster station operating pressure. After that high pressure GLM is supplied to gas separator, where GLM is separated into high pressure gas and liquid. Liquid is supplied to the first pump station for continuation of process cycle, and high pressure gas is supplied to ejector to which there also supplied is foam-forming liquid. Foam system obtained on ejector is supplied to flexible pipe of coil tubing unit, which is lowered to inner cavity of tubing string, in tube space of the well with stops in every 50-100 m.

EFFECT: providing influx of gas well from formation under ALFP conditions with anomaly ratio below 0,2 and reducing the time required for well development.

2 cl, 6 dwg