Method for determining clay mineral content of shale gas reservoir
A technology for clay minerals and shale gas, which is applied in the field of determining the content of clay minerals in shale gas reservoirs, can solve the problems of poor universality and universality, and achieve good universality, good calculation accuracy, and good universality
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Embodiment 1
[0038] This example provides a method for determining the content of clay minerals in shale gas reservoirs. Using the method, the content of clay minerals in shale gas reservoirs of 8 wells in the Wufeng Formation-Longmaxi Formation in the Sichuan Basin and surrounding marine facies evaluation, such as figure 2 As shown, the 8 wells are Weiye 23-1 Well, Jiaoye 1 Well, Jiaoye 41-5 Well, Jiaoye 5 Well, Nanye 1 Well, Dingye 1 Well, Renye 1 Well, Pengye Well Page 1 well.
[0039] The method is based on the relationship between the depositional water depth of shale gas reservoirs and the deposition rate of clay minerals in shale gas reservoirs, and uses the natural gamma ray spectrum logging data of 8 wells to quantitatively calculate the shale gas reservoirs of 8 wells respectively. Clay mineral content. The natural gamma ray spectrum logging data includes the natural gamma ray spectrum thorium curve TH and the natural gamma ray spectrum uranium curve U. The natural gamma ray ...
Embodiment 2
[0053] This example provides a method for determining the content of clay minerals in shale gas reservoirs, using the method to analyze the clay minerals in well Jinye 1 of the Cambrian Qiongzhusi Formation in the Sichuan Basin and surrounding marine facies Content is evaluated, the distribution of the Jinye 1 well is as follows figure 2 shown.
[0054] The method is based on the relationship between the sedimentary water depth of the shale gas reservoir and the deposition rate of clay minerals in the shale gas reservoir, and uses the natural gamma ray spectrum logging data of the Jinye 1 well to quantitatively calculate the shale gas reservoir of the Jinye 1 well. Layer clay mineral content. The natural gamma ray spectrum logging data includes the natural gamma ray spectrum thorium curve TH and the natural gamma ray spectrum uranium curve U. The natural gamma ray spectrum thorium curve TH and the natural gamma ray spectrum uranium curve U of Jinye 1 well were obtained by u...
Embodiment 3
[0061] This example provides a method for determining the content of clay minerals in shale gas reservoirs. Using the method, the well Mouye 1 of the Shanxi Formation-Taiyuan Formation in the Kaifeng Depression of the South North China Basin and 4 wells in the continental facies of the Sichuan Basin The clay mineral content of the shale gas reservoir is evaluated, such as Figure 5 As shown, the four continental wells in the Sichuan Basin are the Dongyuemiao section of Well Jianye HF-1, the Dongyuemiao section of Well Fuye 10, the Da'anzhai-Ma'an Dongyuemiao section of Well Yuanlu 4, and the Da'anzhai section of Well Xinglong 101. - Ma'anshan - Dongyue Temple section.
[0062] The method is based on the relationship between the depositional water depth of the shale gas reservoir and the deposition rate of clay minerals in the shale gas reservoir, and uses the natural gamma ray spectrum logging data of the above five wells to quantitatively calculate the shale gas content of th...
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