Geochemical method for testing and dynamically monitoring gas storage separate layer production capability of natural gas well

A dynamic monitoring and geochemical technology, applied in geophysical measurement, measuring devices, scientific instruments, etc., can solve problems such as high cost, high safety requirements, and long cycle, so as to achieve no impact on production, high safety, and test results Accurate and reliable results

Inactive Publication Date: 2006-07-19
DAQING OILFIELD CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the existing problems of downhole operation, complex process, difficult operation, high safety requirements, high cost and long cycle in the existing gas storage stratified production capacity test, and to provide a method that can dy

Method used

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  • Geochemical method for testing and dynamically monitoring gas storage separate layer production capability of natural gas well
  • Geochemical method for testing and dynamically monitoring gas storage separate layer production capability of natural gas well
  • Geochemical method for testing and dynamically monitoring gas storage separate layer production capability of natural gas well

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Embodiment Construction

[0027] The following will be further described in conjunction with specific examples. The method for testing and dynamically monitoring the geochemical properties of the combined production of natural gas storage layers includes the following steps:

[0028] 1) Take the natural gas in each layer of the combined production gas well, detect it according to the natural gas hydrocarbon fingerprint chromatographic analysis method, select and calculate the characteristic hydrocarbon fingerprint parameters of the natural gas in each gas storage layer;

[0029] 2) Take the natural gas in each layer of the combined production gas well, form a simulated mixed gas sample according to different mixing ratio modes, and perform chromatographic fingerprint analysis respectively to obtain the chemical model between the different mixing ratios of the natural gas in each gas storage layer and its characteristic hydrocarbon fingerprint parameters parameter;

[0030] 3) Using the chemical paramet...

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Abstract

The invention relates to a collecting natural gas reserve air layered yield-power determination and dynamically monitoring geochemistry method. It comprises the following steps: 1) extracting each layer natural gas of the gas recovery well, choosing and computing to obtain each reserve air layered natural gas characteristic hydrocarbon finger mark parameter; 2) extracting each layer natural gas of the gas recovery well, forming analog mixed gas sample by different mixing model and separately doing chromatographic finger mark analysis to obtain different mixing ratio of each reserve air layered natural gas and the chemistry model parameter of the characteristic hydrocarbon finger mark parameters; 3) adopting non-linear artificial nerve network intelligence learning algorithm to establish mathematical model and measuring model plate; 4) collecting the gas recovery sample to do chromatographic finger mark analysis to obtain the corresponding characteristic hydrocarbon finger mark data; 5) computing to obtain the yield-power contribution of the gas recovery each reserve air layered natural gas.

Description

Technical field: [0001] The invention relates to a method for monitoring gas reservoirs in the development and production of natural gas fields, in particular to a method for testing and monitoring the productivity contribution of gas storage stratification in a combined production gas well. Background technique: [0002] With the industrial gas flow obtained in the Yingcheng Formation of Well Xushen 1 in the Xujiaweizi Fault Depression in the northern Songliao Basin, the unobstructed daily production of the whole well was 1.18×10 6 m 3 / d of natural gas, Daqing Oilfield made a historic breakthrough in deep natural gas exploration, and deployed Xushen 2, Xushen 6 and other deep exploration wells and evaluation wells in the Xujiaweizi fault depression, all of which saw thicker gas layers and Good results, especially in Xushen 6 well 3561.0m ~ 3570.0m fracturing gas test of Yingcheng Formation obtained 522676m 3 / d High-yield industrial gas flow, in order to realize the "pro...

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Application Information

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IPC IPC(8): G01N30/02G01V9/00G06F19/00
Inventor 张居和方伟宁晓玲陈大庆柳凤香
Owner DAQING OILFIELD CO LTD
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