Patent AU-2021250869-A1 (AU)
Title: Construction method of hydrocarbon source rock effectiveness evaluation model and evaluation method of hydrocarbon source rock effectiveness
Inventor: PANG HONG
IPC: G01N15/08
Filed: 2021-10-12
Abstract: The present invention provides a construction method of a hydrocarbon source rock 
effectiveness evaluation model and an evaluation method of hydrocarbon source rock 
effectiveness. The construction method of the hydrocarbon source rock effectiveness evaluation 
5 model includes: obtaining regional typical hydrocarbon source rock samples; determining a 
hydrocarbon expulsion difference of each hydrocarbon source rock sample, and further 
determining a hydrocarbon source rock effectiveness evaluation parameter of each hydrocarbon 
source rock sample, based on the hydrocarbon source rock samples; determining pyrolysis 
parameters of each hydrocarbon source rock sample, and determining pyrolysis combination 
10 parameters of each hydrocarbon source rock sample based on the pyrolysis parameters of each 
hydrocarbon source rock sample, where the pyrolysis combination parameters are parameters 
that are derived from the pyrolysis parameters, are capable of reflecting hydrocarbon generation 
potential and/or hydrocarbon residual capacity of a hydrocarbon source rock and are not linearly 
related to each other; constructing mutual-independent principal components using a principal 
15 component analysis method based on the pyrolysis combination parameters of each 
hydrocarbon source rock sample; constructing a calculation model of the hydrocarbon source 
rock effectiveness evaluation parameter with respect to the principal components, i.e., the 
hydrocarbon source rock effectiveness evaluation model, based on the hydrocarbon source rock 
effectiveness evaluation parameter and the principal components of each hydrocarbon source 
20 rock sample.
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Obtaining regional typical hydrocarbon source rock samples NSi 
Determining a hydrocarbon expulsion difference of each hydrocarbon 
source rock sample, and then determining a hydrocarbon source rock 
effectiveness evaluation parameter of each hydrocarbon source rock S2 
sample based on the obtained regional typical hydrocarbon source rock 
samples 
Determining pyrolysis parameters of each hydrocarbon source rock 
sample, and determining pyrolysis combination parameters of each 
hydrocarbon source rock sample based on the pyrolysis parameters of 
each hydrocarbon source rock sample; where the pyrolysis 
combination parameters are parameters that are derived from each S3 
pyrolysis parameter, are capable of reflecting hydrocarbon generation 
potential and/or hydrocarbon residual capacity of a hydrocarbon 
source rock and are not linearly related to each other 
Constructing mutual-independent principal components using a 
principal component analysis method, based on the pyrolysis S4 
combination parameters of each hydrocarbon source rock sample 
Constructing a calculation model of the hydrocarbon source rock 
effectiveness evaluation parameter with respect to the principal 
components, i.e., the hydrocarbon source rock effectiveness S5 
evaluation model, based on the hydrocarbon source rock effectiveness 
evaluation parameter and the principal components of each 
hydrocarbon source rock sample 
FIG. 1