Collection and liquid-separation container and method for measuring content of light hydrocarbons by utilization of collection and liquid-separation container

A liquid separation and container technology, applied in separation methods, chemical instruments and methods, and weighing by removing certain components, can solve the problem of light hydrocarbon loss and other problems, and achieve the recovery of light hydrocarbon content, stable results, operation and equipment Simple and efficient effect

Active Publication Date: 2016-12-07
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can obtain the amount of light hydrocarbons, but there are still light hydrocarbons lost in the process of pretreatment such as filtering, removing water and slag, and concentrating.

Method used

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  • Collection and liquid-separation container and method for measuring content of light hydrocarbons by utilization of collection and liquid-separation container
  • Collection and liquid-separation container and method for measuring content of light hydrocarbons by utilization of collection and liquid-separation container
  • Collection and liquid-separation container and method for measuring content of light hydrocarbons by utilization of collection and liquid-separation container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The invention provides a liquid collection and separation container, as well as matching pipeline connectors and polytetrafluoroethylene plugs.

[0082] 1, collect the specific structure of liquid separation container A (structure such as figure 1 shown) is:

[0083] The collecting and dispensing container is composed of a housing A01, an internal cavity and a fluid communication pipe; the material of the housing and the fluid communication pipe are both made of quartz glass;

[0084] The shell is composed of a cylindrical side wall, a curved top cover and a curved bottom cover;

[0085] The fluid communication pipe is composed of the sampling pipe A02, the gas product output pipe A03 and the liquid separation and discharge pipe A04; wherein, the inner diameter of the sampling pipe is 8mm, and the inner diameter of the gas product output pipe is 6mm; The port where the pipe and the liquid separation and discharge pipe extend out of the shell are provided with external t...

Embodiment 2

[0099] The present invention provides a method for measuring the content of light hydrocarbons in crude oil containing water and slag by using the liquid collecting and separating container in Example 1, as well as the matching pipeline connectors and polytetrafluoroethylene plugs.

[0100] 100 g of the Cretaceous source rocks in the Songliao Basin were used for thermal simulation experiments of hydrocarbon generation and expulsion at different heating temperatures. The organic carbon content of the experimental samples was 3.99%, and the hydrogen index was 829 mg / g TOC. The experimental parameters are shown in Table 1. The liquid products obtained at each experimental point were collected, processed, separated, weighed and calculated according to the following steps (A-D) to obtain the results.

[0101] Table 1 Condition parameters of thermal simulation experiment of hydrocarbon generation and expulsion

[0102]

[0103] 1. The steps for determining the content of light hy...

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Abstract

The invention provides a collection and liquid-separation container and a method for measuring content of light hydrocarbons by the utilization of the collection and liquid-separation container. The collection and liquid-separation container comprises a housing, an internal cavity and a fluid communicating pipe. The housing comprises a cylindrical sidewall, an arc-shaped top cover and an arc-shaped bottom cap. The fluid communicating pipe contains a sample introduction tube, a gas product output tube and a liquid-separation and liquid-discharge tube. The sample introduction tube and the gas product output tube pass through and extent out of the arc-shaped top cover. The liquid-separation and liquid-discharge tube contains an upper capillary tube section, a variable diameter section and a lower liquid-discharge section. The upper capillary tube section is arranged on the outer wall of the arc-shaped bottom cap and is communicated with the internal cavity through a through hole on the arc-shaped bottom cap. According to the method for measuring content of light hydrocarbons by the utilization of the above collection and liquid-separation container, the collection and liquid-separation container is used for collection and measurement of volatile light hydrocarbons composition, and a capillary tube is used for low-temperature enclosed liquid-separation. Content of volatile components is measured at normal temperature and normal pressure in an open environment. Thus, content of volatile light hydrocarbons composition is accurately measured.

Description

technical field [0001] The invention belongs to the technical field of oil and gas geochemistry, and in particular relates to a liquid collecting and separating container and a method for measuring light hydrocarbon content using the device. Background technique [0002] Through the relevant quantitative chemical analysis of thermal simulation experiment products of hydrocarbon generation and expulsion, drilling crude oil samples or rock extracts, the composition and chemical characteristics of crude oil including light hydrocarbons can be obtained, which is an important tool for source rock evaluation and regional analysis in oil and gas exploration. The main way to evaluate the potential of oil and gas resources is also the main means of geochemical research to understand the mechanism of oil and gas generation, reproduce the process of hydrocarbon generation and expulsion, and understand the relationship between oil and gas sources and the law of oil and gas enrichment. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/032G01N5/04
CPCB01D17/0214G01N5/04
Inventor 陈瑞银张水昌张斌唐生荣王汇彤李化冬
Owner PETROCHINA CO LTD
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