Method for evaluating hydrocarbon potential key parameters of high-quality hydrocarbon-source rock
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A technology of hydrocarbon generation potential and key parameters, applied in the direction of material inspection, soil material testing, etc., can solve problems such as unknown oil sources
Inactive Publication Date: 2016-01-06
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Determined the hydrocarbon generation potential of high-quality source rocks in the immature-low mature stage, solved the problem of unknown oil source of tight o...
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Embodiment 1
[0050] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9a , Figure 9b , Figure 10a , Figure 10b , Figure 11a , Figure 11b , Figure 12a , Figure 12b , Figure 13a , Figure 13b , Figure 14a , Figure 14b , Figure 15a , Figure 15b , Figure 16a , Figure 16b , Figure 17 , Figure 18 and Figure 19 As shown, an evaluation method for key parameters of high-quality source rocks’ hydrocarbon generation potential can objectively and accurately evaluate the hydrocarbon generation rate and expulsion rate of high-quality source rocks in the immature-low mature stage, and establish the guarantee for high-quality source rocks in the immature-low mature stage. The organic carbon recovery coefficient evaluation model can accurately evaluate the key parameters of the hydrocarbon generation potential of high-quality source rocks in the immature-low mature stage. Taking the Leijia area in ...
[0118] A method for evaluating key parameters of hydrocarbon-generating potential of high-quality source rocks, comprising the following steps;
[0119] Step 1), collecting and organizing basic data, said basic data includes: pyrolysis experimental data, chloroform bitumen "A" test data, vitrinite reflectance Ro test data, light hydrocarbon recovery measured data, source rock group composition data ;
[0120] Step 2), light hydrocarbon recovery of key parameters of chloroform bitumen "A": due to the loss of light hydrocarbon components in the extraction process of ch...
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Abstract
The invention discloses a method for evaluating hydrocarbon potential key parameters of high-quality hydrocarbon-source rock, and belongs to the technical field of oil and gas resource evaluation. The method includes the key steps of firstly, determining an immature and low-mature oil hydrocarbon expelling threshold, a normal hydrocarbon threshold and a normal hydrocarbon expelling threshold of high-quality hydrocarbon-source rock according to geochemistry data of hydrocarbon-source rock; secondly, establishing the hydrocarbon-source rock hydrocarbon amount and a hydrocarbon rate evaluating model; thirdly, establishing the hydrocarbon-source rock hydrocarbon expelling amount and a hydrocarbon expelling evaluating model, and evaluating the target level hydrocarbon-source rock hydrocarbon expelling amount and hydrocarbon expelling rate key parameters; fourthly, establishing a high-quality hydrocarbon-source rock organic carbon recovery coefficient evaluating model, and evaluating a target level hydrocarbon-source rock organic carbon recovery coefficient; fifthly, evaluating a research area target level high-quality hydrocarbon-source rock hydrocarbon potential plane graph, and analyzing the relation between the plane graph and tight oil hydrocarbon contribution. Immature and low-mature stage hydrocarbon potential key parameters of high-quality hydrocarbon-source rock are subjectively and accurately evaluated, and the blank, weakened by people in the past, of immature and low-mature stage hydrocarbon of high-quality hydrocarbon-source rock is filled in.
Description
technical field [0001] The invention relates to a method for evaluating key parameters of hydrocarbon-generating potential of high-quality source rocks, belonging to the technical field of oil and gas resource evaluation. Background technique [0002] With the gradual depletion of conventional oil and gas, the exploration of medium-shallow and unconventional oil and gas has gradually attracted the attention of petroleum explorers. For unconventional oil and gas, especially after the shale gas breakthrough in the United States, tight oil and gas has become another "bright spot" field of unconventional oil and gas resources. China's tight oil resources are very rich and have good prospects for exploration and development. In recent years, in the Ordos Basin Upper Triassic Yanchang Formation, Permian Fengcheng Formation in Mahu Sag, Junggar Basin, Permian Lucaogou Formation in Jimsar Sag, Permian Pingdiquan Formation in Shazhang-Shishugou Sag, Bogda Piedmont The tight explorat...
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