MOBILE PLANT FOR WATER PURIFICATION FROM HYDROGEN SULFIDE FOR INJECTION INTO RESERVOIR, METHOD FOR ITS IMPLEMENTATION AND PRESSURE AERATION DEVICE Russian patent published in 2023 - IPC C02F1/20 B01D19/00 

FIELD: oil and gas industry.

SUBSTANCE: invention is intended to implement the technology of water purification from hydrogen sulphide before supplying it to the reservoir pressure maintenance system (PMS) for subsequent injection into the reservoir of the oil field. Mobile installation for water purification from hydrogen sulphide is a monoblock, including pressure vessel operating under pressure (VUP), and the mass-transfer column device integrated with it (MCU). VUP and MCU are located perpendicular to each other. The MCU is equipped with regular countercurrent nozzles with vertical contact grids and is a vertical cylindrical vessel equipped with an elliptical bottom in the upper part, in which a fitting for the outlet of gas enriched with hydrogen sulphide, a fitting for a pressure sensor and a fitting for a temperature sensor are located. In the upper part of the VUP there is a pressure aeration device, which includes a pipeline placed horizontally along the entire length of the vessel with a fitting for gas supply. Vertical distribution manifolds are connected to the pipeline at an equal distance from each other, perpendicular to which horizontal ramps are attached, extending in different directions from the attachment point. Filter cartridges are attached to horizontal ramps via pipe fittings. Bottom of the VUP is configured with a purified water outlet suitable for feeding into the PMS system.

EFFECT: reduction of concentration of hydrogen sulphide in neutralized water H₂S with minimal capital costs.

4 cl, 2 dwg