Method for acquiring gas content of shale reservoir through well logging data
A technology for shale reservoirs and well logging data, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as shale gas content error, large error in gas loss estimation results, gas loss, etc.
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[0062] The method for obtaining the gas content of a shale reservoir provided by the logging data includes the following steps:
[0063] Step 1: Select shale gas wells in the study area for coring, and then measure the porosity of the same shale sample separately Organic carbon content TOC core , water saturation S w-core , cementation index m, saturation index n, Langmuir volume V L , Langmuir pressure P L , stratigraphic skeleton density ρ m and formation fluid density ρ fl . The well locations and horizons for coring are based on the principle that they can reflect the basic characteristics of the shale in the study area.
[0064] Step 2: Calculate and obtain key parameters of gas content in shale reservoirs through logging data:
[0065] 1) Using the multiple linear regression method to obtain the TOC of the logging organic carbon content log :
[0066] ①Correlation detection: Use SPSS (Statistical Product and Service Solutions) software to analyze the TOC of the...
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