Drainage and gas recovery pipeline conveying process for tight gas

• Main Authors: ZHOU PAN, JING YADONG, ZHOU JUN, LIANG GUANGCHUAN
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention relates to the technical field of oil and gas storage and transportation, in particular to a tight gas drainage gas recovery pipeline conveying process. In order to solve the problems in the prior art, the tight gas drainage gas production pipeline conveying process is provided and comprises the steps that S1, tight gas in a gas outlet layer is produced through a drainage gas production process; s2, the extracted tight gas is sequentially subjected to desanding and heating treatment, and then gas and liquid are separated from the extracted tight gas; s3, the separated gas is conveyed in a pipeline pressurization mode through a compressor, and then the gas is conveyed through a tight gas drainage gas recovery pipeline; and S4, the separated liquid is input into other water injection development stratums except the gas outlet layer through a liquid pipeline. 本发明涉及油气储运技术领域，具体是一种致密气排水采气管道输送工艺。为了克服现有技术中的问题，本发明提供一种致密气排水采气管道输送工艺，步骤S1、采用排水采气工艺将出气层中的致密气采出；步骤S2、采出的致密气依次经过除砂、加热处理，再将采出的致密气分离出气体和液体；步骤S3、将分离出