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Sulfur scraping device applied to operation of well testing steel wire for ultradeep high-sulfur gas well

A high-sulfur well-testing technology, which is applied in wellbore/well components, earthwork drilling, cleaning equipment, etc., can solve the problem of steel wire getting stuck, and achieve the effects of preventing stuck, convenient operation and simple structure

Active Publication Date: 2020-05-05
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the accumulation of sulfur-containing solid phases or impurities in the steel wire sealing control head, the steel wire is stuck, which has become a major problem in the well testing steel wire operation of sulfur-containing gas wells

Method used

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  • Sulfur scraping device applied to operation of well testing steel wire for ultradeep high-sulfur gas well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, a sulfur scraping device for ultra-deep high-sulfur gas well testing steel wire operation, the sulfur scraping device is fixedly installed at the lower end of the sealing control head of the well testing steel wire, the sulfur scraping device mainly includes: a casing, a sulfur scraping part, a sulfur scraping groove and Discharge tray; the sulfur scraper is arranged inside the shell, and an internal thread is provided on the inner surface of one end of the shell, and the discharge tray is threadedly connected with the end of the shell provided with an internal thread, so that the sulfur scraper is inside the shell fixed to prevent the sulfur scraping parts from moving up and down along with the well test steel wire during well test steel wire operation, and the effect of scraping impurities cannot be achieved; Sealed control head connection; after the sulfur scraping device has been used for a period of time, it needs to be cleaned to prevent...

Embodiment 2

[0026] Preferably, the locating member is a positioning jack screw, and by opening a screw hole on the shell, screwing the jack screw in to complete the fixing of the discharge tray in the circumferential direction.

Embodiment 3

[0028] Preferably, the material of the sulfur scraper is preferably rubber, because the rubber sulfur scraper is not easy to chemically react with the substances in the sulfur gas well, and the rubber sulfur scraper is light and convenient, easy to install and take out.

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Abstract

The invention relates to the technical field of a device used for removing sulfur impurities from a well testing steel wire and discloses a sulfur scraping device applied to operation of a well testing steel wire for an ultradeep high-sulfur gas well. The sulfur scraping device comprises a housing, a sulfur scraping part, sulfur scraping grooves, a discharging tray and a positioning part; the sulfur scraping part is arranged inside the housing; the surface of the housing is provided with mutually-symmetric sulfur scraping grooves; the discharging tray is in threaded connection with one end ofthe housing and pushes against the sulfur scraping part which is arranged inside the housing so that the sulfur scraping part is fixedly arranged inside the housing; the discharging tray is further provided with discharging grooves which correspond to the sulfur scraping grooves one by one; the discharging grooves are used for discharging the impurities scraped by the sulfur scraping part; the housing, the sulfur scraping part and the discharging tray are each provided with a through hole which is convenient for the well testing steel wire to pass through and is used for scraping the impurities on the well testing steel wire; and the positioning part is used for circumferentially fixing the discharging tray so that the discharging tray cannot rotate relative to the housing. The sulfur scraping device disclosed by the invention is simple in structure and convenient to operate, can be used for removing the impurities on the well testing steel wire under a severe operation environment condition and prevents the well testing steel wire from being stuck.

Description

technical field [0001] The invention relates to the field of devices for removing sulfur impurities on well test steel wires, in particular to a sulfur scraping device for well test steel wire operations of ultra-deep high-sulfur gas wells. Background technique [0002] In recent years, in order to evaluate the productivity and dynamic reserves of sulfur-bearing gas wells in China, analyze the seepage characteristics of reservoirs and the pollution situation near the wellbore, and provide the basis for the development adjustment, reserve evaluation and engineering measures of gas reservoirs; Sulfur gas well dynamic monitoring construction (wire-suspended electronic pressure gauge measurement method). Due to the high wellhead pressure and high output in this block, and the hydrogen sulfide content in natural gas is 5% to 10%, the dynamic monitoring of Yuanba gas field generally uses electronic pressure gauges conveyed by sulfur-resistant steel wires for testing; Phase matter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B37/02
CPCE21B37/02
Inventor 李坤刘殿清张正玉刘化友刘俊刘一鹏郑伟林李孟来司超月梁贤春
Owner 中石化石油工程技术服务有限公司
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