Shale core permeability experiment device and method
A technology for shale cores and experimental devices, applied in the fields of permeability/surface area analysis, measurement devices, suspension and porous material analysis, etc. complex problems, to achieve the effect of improving the measurement accuracy
Pending Publication Date: 2021-12-31
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
In addition, the composition of shale oil is very complex, and it is difficult to correct the result of gas permeability to the result of oil permeability. Therefore, it is necessary to use real shale oil samples
[0004] At present, it is difficult to conduct experimental research on the permeability of oil in shale. Therefore, an experimental equipment is needed to meet the requirements of using oil to test the permeability of shale samples with different high and low permeability.
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Embodiment 1
[0047] At present, the gas measurement method is mainly used to measure the permeability of shale cores. At present, the permeability results of gas logging are corrected to the permeability of shale oil logging, which lacks a good model. At the same time, because the components of shale oil are complex and the components of shale oil in different wells are very different, it is necessary to use oil logging directly. Permeability of shale cores to better predict shale oil production. In this example, a cylindrical shale sample is used for illustration; the specific experimental steps are as follows.
[0048] 1. Assembly and connection of shale core permeability test device
[0049] Such as figure 1 As shown, the shale core permeability test device includes an injection pump 18, a receiving pump 21 and a core holder 20; the injection pump 18 is connected to the upstream and downstream of the core holder 20 through pipelines, and the receiving pump 21 is connected to the core ...
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The invention discloses a shale core permeability experimental device and method, and relates to the technical field of oil exploration and development. The device comprises an injection pump, a receiving pump and a core holder, wherein the injection pump is respectively connected with the upstream end and the downstream end of the core holder through pipelines, the receiving pump is respectively connected with the upstream end and the downstream end of the core holder through pipelines, and valves are respectively arranged on the pipelines; one end of the core holder is connected with a confining pressure pump through a pipeline and a valve; the injection pump, the receiving pump, the core holder and the confining pressure pump are respectively provided with a thermomanometer; and a differential pressure gauge is connected between the upstream end and the downstream end of the core holder through a pipeline. According to the experimental method based on the experimental device, the oil permeability of the shale core sample from high permeability to ultra-low permeability and the permeability of the shale core sample under different confining pressure conditions can be rapidly and automatically measured, and the fracture compression coefficient of the shale core sample is calculated.
Description
technical field [0001] The invention relates to the technical field of petroleum exploration and development, in particular to a shale core permeability experiment device and method. Background technique [0002] Shale oil is an important oil replacement resource in my country, and the development of shale oil has important strategic and practical significance. At present, the difficulty in domestic shale oil development lies in the development of pure shale-type shale oil. The lithology of this type of shale oil reservoir is mainly shale, interbedded with extremely thin siltstone or carbonate rock. It is characterized by the development of lamellar fractures, and a large amount of oil exists in the lamellar fractures in the form of free state. Since the oil content and oil mobility in the shale fractures determine the initial and long-term production of shale oil, the study of the flow of shale oil in the shale fractures is very important for predicting the production of s...
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IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/082G01N15/0826
Inventor吴桐潘哲君
OwnerNORTHEAST GASOLINEEUM UNIV