Gas well natural gas dehydration treatment device

Abstract

The invention relates to the technical field of natural gas treatment equipment and particularly relates to a gas well natural gas dehydration treatment device. The device comprises a condensation pipe, a drainage pipe, a backflow pipe, a connecting pipe and a compression pipe, wherein liquid drops in natural gas raw materials are rapidly condensed to form primary dehydration through the condensation pipe, and primary separation operation is high in separation efficiency and short in operation time; no chemical reagent is used in the primary separation process, no impurity is introduced, then the natural gas is compressed in the compression pipe after passing through the gas separation membrane, compressed fine liquid drops are condensed and absorbed by the absorption column, then the natural gas is exhausted through the exhaust pipe, the dry natural gas is obtained, the dehydration effect in the process is high, no chemical reagent is used, secondary pollution cannot be caused, the quality of natural gas is improved, normal operation of pipelines and equipment can be ensured, practical significance and popularization value are achieved, and it is expected that good economic benefits can be generated.

Description

Technical field [0001] Technical Field The present invention relates to a gas processing device, in particular to a gas dehydration apparatus wells. Background technique [0002] Gas flows from the wellhead natural gas is almost saturated with water vapor, even carries a certain amount of liquid water, the presence of gas in the water often cause serious consequences, such as those containing CO 2 Hidden 2 S gas is formed in the presence of water and an acid corrosion of piping and equipment; gas hydrates under certain conditions, plug valves, piping and equipment; reduce pipeline capacity, resulting in unnecessary power consumption, gas moisture the very existence is a bad thing, will reduce the life of the equipment, reduce production efficiency gas wells, natural gas dehydration and therefore very necessary. [0003] Common methods include cooling the dehydrated natural gas dehydration, dehydration absorption, adsorption dehydration, and dehydration using a gas separation memb...

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Problems solved by technology

[0002] The natural gas flowing out from the wellhead of the gas well is almost saturated with gas-phase water, and even carries a certain amount of liquid water. The presence of water in natural gas often causes serious consequences, such as the presence of CO 2 and H 2 S natural gas forms acid in the presence of water to corrode pipelines and equipment; forms natural gas hydrate under certain conditions to block valves, pipelines and equipment; reduces pipeline transportation capacity, causing unnecessary power consumption, and moisture in natural gas The existence of natural gas is very unfavorable, it will reduce the service life of equipment and reduce the production efficiency of gas wells, so natural gas dehydration is very necessary

[0003] Common natural gas dehydration methods include cooling dehydration, absorption dehydration, adsorption dehydration, and dehydration using gas separation membranes. In order to ensure the dehydration effect, the above-mentioned methods are usually used at the same time. Not only are the pipelines complicated and difficult to maintain, but they all have certain shortcomings. For example, absorption and dehydration is easy to introduce solvent impurities into natural gas, and the gas separation membrane also has a certain permeability to water vapor. If based on the existing technology, a new type of natural gas dehydration equipment will be developed to solve the above problems and promote the development of the industry. It will be positive significance

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