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High-temperature and high-pressure condensate gas wax precipitation quantity testing apparatus and method

A technology of high temperature and high pressure, testing equipment, applied in the direction of measuring equipment, specific gravity measurement, analysis of materials, etc., can solve the problems of the method of testing the amount of undesorbed wax, and achieve the effect of improving production efficiency

Active Publication Date: 2019-09-03
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no test method for the amount of wax deposited in high-temperature and high-pressure condensate gas

Method used

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  • High-temperature and high-pressure condensate gas wax precipitation quantity testing apparatus and method
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  • High-temperature and high-pressure condensate gas wax precipitation quantity testing apparatus and method

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Embodiment Construction

[0049]The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0050] Such as figure 1 As shown, a high-temperature and high-pressure condensate gasification wax amount testing device of the present invention includes a constant temperature box I1, a constant temperature box II2, a high-pressure phase change test gas cylinder 3, a vacuum pump 4, a constant speed and constant pressure pump 5, an intermediate container 6, Computer, pipeline; heat shield 15 is provided between the thermostat I1 and thermostat II2; the vacuum pump 4, high-pressure phase change test cylinder 3, intermediate container 6, and constant-speed and constant-pressure pump 5 are sequentially connected through pipelines; Among them, metal seals are used between the pipeline and the high-pressure phase change test gas cylinder 3 and the intermediate container 6, so as to avoid the deformation of the rubber seal and cause pressure or volume cha...

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Abstract

The present invention discloses a high-temperature and high-pressure condensing gas wax precipitation quantity testing apparatus and method. The apparatus comprises an incubator I, an incubator II, ahigh-pressure phase change test gas cylinder, a vacuum pump, a constant-speed constant-pressure pump, an intermediate container and pipelines; the vacuum pump, the high-pressure phase change test gascylinder, the intermediate container, and the constant-speed constant-pressure pump are sequentially communicated through the pipelines; an electric valve I and an electric valve II are respectively arranged on the two ends of the high-pressure phase change test gas cylinder, and an electric valve III and an electric valve IV are respectively arranged on the two ends of the intermediate container;and the intermediate container is provided with a temperature sensor II and a pressure sensor II, and the temperature sensor II and the pressure sensor II are arranged outside the incubator II. According to the technical scheme of the present invention, based on the gas state equation and the conservation law of mass, the condensate gas wax precipitation quantity is tested through the cooling method experiment, research results will be beneficial to further understand the wax precipitation law and sedimentation law of the condensate gas reservoir, and the basis is provided for the wax prevention and removal measures of the formation or wellbore, so that oil and gas production efficiency can be improved.

Description

technical field [0001] The invention relates to a high-temperature and high-pressure condensate gaseous wax content testing device and method. Background technique [0002] The problem of paraffin deposition has always been a serious problem in oil and gas production and transportation. Wax deposition occurs in oil and gas reservoirs, well bores, and ground gathering and transportation pipelines. The deposition of wax in the wellbore will cause the wellbore to be plugged, resulting in a significant reduction in oil and gas production, or even shutdown. Severe wax deposition in the wellbore leads to frequent on-site wax removal and prevention operations, which seriously affects the smooth operation of production and greatly increases the cost of oil and gas reservoir development. In recent years, in the western and eastern regions of my country, especially in the Tarim Basin, the problem of wax deposition in high-wax condensate gas wells has become more and more common, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/12G01N9/36G01N7/00
CPCG01N7/00G01N9/36G01N25/12
Inventor 刘建仪周飞王茜谢泱代建伟
Owner SOUTHWEST PETROLEUM UNIV
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