High-sulfur-content gas field pipeline sulfur deposition prediction method

Abstract

The invention discloses a high-sulfur-content gas field pipeline sulfur deposition prediction method. The method comprises the following steps: S1, researching a sulfur deposition mechanism; S2, determining several kinds of parameter data having important influence on sulfur deposition in the pipeline, and performing weight distribution on the parameter data one by one; S3, sampling in the pipeline, acquiring parameter data, and substituting the parameter data into the sulfur deposition prediction model for operation; S4, obtaining a sulfur deposition statistical partition map through statistical analysis of sulfur deposition, and when the sulfur deposition statistical partition map is utilized, performing related calculation point tracing on the parameter data to finally provide technicaland theoretical support for establishment of a sulfur deposition prevention and control method in a pipeline and even a whole pipeline system. According to the invention, the weight matched with theparameter data is analyzed, so the prediction result is more accurate; technical and theoretical supports can be provided for establishment of a sulfur deposition prevention and control method in a pipeline and even a whole pipeline system.

Description

technical field [0001] The invention belongs to the technical field of sulfur deposition prediction of gas field pipelines, and more specifically relates to a method for predicting sulfur deposition of pipelines in high-sulfur gas fields. Background technique [0002] Sulfur deposition is a huge hazard, and the research on sulfur deposition must be paid attention to during the development of sour gas fields. China is rich in sour natural gas resources, and is one of the countries with high-sulfur gas fields in the world. Among them, the gas reservoirs in Northeast Sichuan are generally sulfur-containing, and most of them are extremely high-sulfur and medium-carbon dioxide gas reservoirs. During the transportation of high-sulfur natural gas in the pipeline, with the change of conditions such as pressure, temperature and gas composition, the sulfur molecules desorbed by supersaturated dissolution in the gas phase will gradually nucleate and grow into solid sulfur particles tog...

AI Technical Summary

Problems solved by technology

The sulfur particles deposited in the pipeline will block and corrode the pipeline, seriously threatening the transportation safety of high-sulfur natural gas pipelines. Therefore, we propose a method for predicting sulfur deposition in high-sulfur gas field pipelines