Natural gas liquid removal equipment and use method thereof

Abstract

The invention discloses natural gas liquid removal equipment which comprises a shell with the longitudinal length and a cavity inside, a gas inlet and a gas outlet are formed in the two opposite ends of the shell in the longitudinal direction, a super-hydrophobic module and a super-oleophobic module are sequentially arranged in the cavity in the longitudinal direction, natural gas to be treated enters the cavity through the gas inlet, and the super-oleophobic module is arranged in the cavity through the gas outlet. And the gas sequentially passes through the super-hydrophobic module and the super-oleophobic module and is discharged from the gas outlet. The liquid removal equipment provided by the invention comprises the super-hydrophobic module and the super-oleophobic module which are arranged in sequence and are used for respectively removing water vapor and oil components in natural gas, so that a liquid phase in the natural gas can be efficiently removed, liquid accumulation of a natural gas conveying pipeline is avoided, corrosion of the conveying pipeline is relieved, and the liquid removal equipment is good in water removal and oil removal effects; the water removal rate can reach 99%, the oil removal rate can reach 97% or above, and water vapor and oil in natural gas can be removed at the same time.

Description

technical field [0001] The invention relates to the technical field of gas field production, in particular to a natural gas liquid removal device and a method for using the same. Background technique [0002] In the process of gas field development, large-scale hydraulic fracturing is often used to form complex artificial fracture networks in shale reservoirs in order to increase the production of a single well. A single well needs to pump tens of thousands of cubic meters of water into the gas reservoir. During the trial production period, these large amounts of injected liquid will flow back to the surface with the natural gas produced, resulting in a high saturated water content of the natural gas, and part of the formation water becomes steam and natural gas mixed. After the process, the long-distance pipeline network entering the gas field is mostly buried in the soil below the surface, and the working environment temperature is the temperature of the soil below the su...

AI Technical Summary

Problems solved by technology

[0008] To sum up, the moisture and oil in natural gas must be removed before it is produced and exported to reduce the specified value or safe value. Currently, natural gas dehydration mainly adopts the technology of combining gravity sedimentation gas-liquid separator and microporous filter material. Or adopt triethylene glycol dehydration, molecular dehydration and other technologies, the separation efficiency of gravity sedimentation gas-liquid separator is limited, triethylene glycol dehydration and molecular dehydration are mainly used in occasions with relatively high requirements for natural gas dehydration, and the investment is relatively high. Not too many related technologies mentioned

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