Enrichment device and enrichment method for light hydrocarbon in dry gas
A dry gas and enrichment technology, applied in the field of oil and gas exploration, can solve the problems of limited geological application and difficult natural gas, and achieve the effect of enriching geological data and expanding the scope of research
Active Publication Date: 2015-02-18
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the lack of information provided by chromatographic analysis, the fingerprint characteristics and parameters reflecting the properties of light hydrocarbons cannot be obtained, so it is very difficult to carry out geochemical correlation of natural gas, and the geological application is very limited.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0041] Such as figure 1 As shown, a device for enriching light hydrocarbons in dry gas includes: dry gas storage tank 101, six-way valve 107, enrichment pipe 108, purifier 106 and heating furnace, two heating furnaces, dry gas storage tank 101 is arranged in one heating furnace, purifier 106 and six-way valve 107 are arranged in another heating furnace,
[0042] The enrichment pipe 108 is arranged in the cold trap 109, and the cold trap 109 is arranged outside the heating furnace, and the enrichment pipe 108 is connected with the six-way valve 107;
[0043] After the dry gas storage tank 101 is connected to the purifier 106, it is connected to the six-way valve 107;
[0044] Carrier gas inlet pipeline a and backflush gas inlet pipeline b are arranged outside the heating furnace. The carrier gas inlet pipeline a enters the heating furnace and connects with the circulation valve 107, and the backflush gas inlet pipeline b enters the heating furnace and connects with the purifie...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an enrichment device and an enrichment method for a light hydrocarbon in dry gas. The device comprises a dry gas storage pot, a six-way valve, an enrichment pipe, a purifier and two heating hearths, wherein the dry gas storage pot is arranged in one heating hearth; the purifier and the six-way valve are arranged in the other heating hearth; the enrichment pipe is arranged in a cold trap; the cold trap is arranged outside the heating hearths; the enrichment pipe is connected with the six-way valve; the dry gas storage pot is connected with the purifier and then is connected with the six-way valve; a carrier gas introduction pipeline and a back-blowing gas introduction pipeline are arranged outside the heating hearths; the carrier gas introduction pipeline enters the heating hearth to be connected with a flowing valve; the back-blowing gas introduction pipeline enters the heating hearth to be communicated with a pipeline between the purifier and the six-way valve; the six-way valve is connected with a chromatographic instrument and a ventilation cabinet respectively. The method comprises the following step that dry gas is enriched and then enters the chromatographic instrument to be subjected to light hydrocarbon analysis. According to the enrichment device and the enrichment method for the light hydrocarbon in the dry gas, fingerprint information of the light hydrocarbon lower than a detection limit in a conventional chromatographic analysis can be obtained and real and complete data information is obtained.
Description
technical field [0001] The invention relates to the field of oil and gas exploration, in particular to an enrichment device and enrichment method for light hydrocarbons in dry gas. Background technique [0002] The associated natural gas in the oil field, after dehydration, purification and light hydrocarbon recovery processes, extracts liquefied gas and light oil, the main component is methane, and the processed natural gas is called dry gas. Generally speaking, natural gas with a methane content of more than 90% is called dry gas. [0003] At present, the analysis of natural gas generally collects gas samples by drainage method or small cylinder method at normal temperature and pressure, and directly injects samples with a syringe for gas chromatographic analysis. Such a conventional method, for general wet gas, with the improvement of chromatographic sensitivity, it is possible to analyze more light hydrocarbon components, which can be applied to geological interpretatio...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/08
Inventor 张彩明宋晓莹许锦王勤张渠蒋启贵徐勤
Owner CHINA PETROLEUM & CHEM CORP