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Method for measuring sulfur content in produced gas of sulfur-containing gas well

A determination method and technology of sulfur content, applied in the direction of weighing by removing certain components, can solve problems such as low reference value and inaccurate determination of sulfur content

Pending Publication Date: 2022-01-21
PETRO CHINA CO LTD SOUTHWEST OIL & GAS FIELD EXPLORATION & DEV RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of inaccurate measurement of sulfur content and low reference value caused by the determination of sulfur content in the produced gas in the prior art, which only focuses on the determination of hydrogen sulfide content, and to provide a method for measuring the sulfur content in the produced gas of a sulfur-containing gas well. Sulfur content measurement method, measuring the total sulfur content in the produced gas, accurately reflecting the total sulfur content in the produced gas, and providing more valuable reference data for anti-corrosion and anti-blocking tests

Method used

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  • Method for measuring sulfur content in produced gas of sulfur-containing gas well
  • Method for measuring sulfur content in produced gas of sulfur-containing gas well
  • Method for measuring sulfur content in produced gas of sulfur-containing gas well

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Embodiment 1

[0043] Due to the high sulfur content of the produced gas in high-sulfur gas reservoirs, it is necessary to monitor and measure the sulfur content in the produced gas. Moreover, the produced gas of high-sulfur gas reservoirs not only contains hydrogen sulfide gas, but also contains a large amount of elemental sulfur and sulfur-containing organic matter, and the elemental sulfur in the produced gas will be deposited in ground equipment and pipelines, causing serious corrosion of equipment At the same time, sulfur-containing organic sulfur will also cause corrosion of equipment and pipelines during transportation; but in the prior art, the content of hydrogen sulfide gas in the produced gas is usually only measured, and high-sulfur gas content is determined according to the content of hydrogen sulfide gas. Gas well anti-corrosion and anti-blocking measures, so it is difficult to accurately reflect the sulfur content in the produced gas, and it is impossible to provide more valuab...

Embodiment 2

[0068] Embodiment 2 is a further description of Embodiment 1. The same components will not be repeated here. In step S1, before the pressure reduction and temperature reduction of the produced gas, a hydrogen sulfide detector is also used to detect the hydrogen sulfide concentration ρ in the produced gas. g0 ;

[0069] In step S3, the sulfur-containing gas first uses a hydrogen sulfide detector to detect the hydrogen sulfide concentration ρ in the sulfur-containing gas g1 , and then measure the sulfur content in the sulfur-containing gas.

[0070] Then according to the hydrogen sulfide concentration ρ in the produced gas g0 , the hydrogen sulfide concentration ρ in the sulfur-containing gas g1 , the sulfur content in the sulfur-containing liquid, and the sulfur content in the sulfur-containing gas are calculated to obtain the sulfur content ρ in the sulfur-containing organic matter in the produced gas 有机总 ; Realize the determination of hydrogen sulfide content in produced g...

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Abstract

The invention discloses a method for measuring the sulfur content in produced gas of a sulfur-containing gas well, and relates to the technical field of sulfur-containing gas well exploiting. The method comprises the following steps: S1, collecting produced gas of a natural gas wellhead to be measured, and conducting depressurization and cooling treatment; S2, performing gas, solid and liquid separation on the produced gas subjected to pressure reduction and temperature reduction treatment to obtain a sulfur-containing solid, a sulfur-containing liquid and a sulfur-containing gas; S3, measuring the sulfur content in the sulfur-containing solid, the sulfur-containing liquid and the sulfur-containing gas, respectively, and obtaining the total sulfur content in the produced gas collected in the step S1. According to the invention, the total sulfur content in the produced gas can be measured, the total sulfur content in the produced gas can be accurately reflected, and more valuable reference data can be provided for anti-corrosion and anti-blocking tests.

Description

technical field [0001] The invention relates to the technical field of development of sulfur-containing gas wells, in particular to a method for measuring sulfur content in gas produced from sulfur-containing gas wells. Background technique [0002] High-sulfur gas reservoirs refer to gas reservoirs with a hydrogen sulfide content of 30-150g / m3 in the produced natural gas; because high-sulfur natural gas generally contains CO2, it is very corrosive, so high-sulfur gas wells are corroded. It is one of the difficult problems in the development of sulfur-containing gas wells; because hydrogen sulfide gas poses a serious threat to human health, safety and the environment, and even endangers life, the content of hydrogen sulfide gas in the produced gas is usually measured in the prior art, and according to Anti-corrosion and anti-blocking measures for high-sulfur gas wells. [0003] However, the produced gas from high-sulfur gas reservoirs not only contains hydrogen sulfide gas,...

Claims

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Application Information

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IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 李农张本健王丽易海永蒲治锦邓晓航许馨月
Owner PETRO CHINA CO LTD SOUTHWEST OIL & GAS FIELD EXPLORATION & DEV RES INST
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