System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof

A wellbore fluid and monitoring system technology, applied in wellbore/well components, earthwork drilling and production, etc., can solve problems such as inability to obtain flow pressure and wellbore flow deposition prediction, and unmeasured gas fields

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention solves the problem of high H content 2 S/CO 2 The above-mentioned problems existing in the production process of the gas field, invented the high-H content 2 S/CO 2 The gas field wellbore fluid composition monitoring system and its sampling analysis metho

Method used

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  • System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof
  • System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof
  • System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof

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Embodiment Construction

[0191] Described sampling device comprises sampling valve 12, sampling bottle 11 and decompression valve,

[0192] The two ends of the sampling bottle 11 are threadedly connected with the sampling valve 12, and the external connection of the sampling valve 12 is an external thread ferrule type connection; the pressure reducing valve is used for decompressing the high-pressure gas in the sampling bottle and Sampling; the decompression valve includes an external input sampling port 13, which is connected to an external detector; the external input sampling port 13 is a ferrule-type connection port, eliminating dead ends in the pipeline.

[0193] In order to reduce the problem of excessive pressure in the sampling bottle 11, the pressure relief valve includes a safety valve structure, and the safety valve structure includes a safety valve 6, a gas circuit 14 and an acid gas neutralization pool 15; 4MPa or when the pressure reducing valve fails, the safety valve 6 is opened, and t...

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Abstract

The invention belongs to the field of oil gas and oil well development, discloses a system for sampling and monitoring components of shaft fluid of a gas field and particularly relates to a system for sampling and monitoring components of the shaft fluid of the gas field and a sampling and analysis method thereof, which are designed aiming at environmental characteristics of a H2S/CO2-containing gas field. A sampling process of a sampler of a gas well is safer, an experimental process is more accurate and quicker, and the application pressure range is wider and safer, and an experimental result of researching the change of high-content hydrogen sulfide gas components is more accurate; and a device is safe and reliable. Through the system and the method, the problems that fluid pressure cannot be obtained and fluid deposit in the shaft cannot be predicted because the measurement cannot be performed in the gas field containing high content of H2S/CO2 can be solved and theoretical basis is provided for a gas well capacity design, production parameter optimization and the formulation of technical measures.

Description

technical field [0001] The invention belongs to a gas field wellbore fluid composition sampling monitoring system in the field of oil and gas oil well development, and particularly relates to a 2 S / CO 2 Gas field wellbore fluid composition sampling and monitoring system designed for gas field environment characteristics and its sampling and analysis methods. Background technique [0002] With the continuous development of my country's national economy, the country's demand for energy is also increasing. Improving the proportion of green energy natural gas in the energy structure as soon as possible, increasing mining efforts, and optimizing China's energy structure are the core of my country's oil and gas resource development strategy. It is essential to effectively solve energy supply security and ecological environment protection, and achieve sustainable economic and social development. is of great significance. [0003] At present, for the exploitation of conventional n...

Claims

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Application Information

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IPC IPC(8): E21B49/08
Inventor 石在虹李孟涛史爱萍杨立红苏建政王雅茹唐萍
Owner CHINA PETROLEUM & CHEM CORP
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