Shale reservoir fluid range quantitative evaluation device and method after fracture network transformation
A technology for quantitative evaluation of shale reservoirs, applied in measuring devices, weighing by absorption of substances, weighing by removing certain components, etc.
Pending Publication Date: 2020-06-02
CHINA UNIV OF PETROLEUM (BEIJING)
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[0003] However, in terms of evaluating the fluid production range of shale reservoirs, there are few experimental simulation studies on the fluid production range of shale reservoirs after fracture network stimulation.
The range of reservoir fluid production after fracture network stimulation in shale reservoirs has not been fully understood in the prior art
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[0041] The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modifications based on the present invention, and these should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "installed"...
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The invention discloses a shale reservoir fluid range quantitative evaluation device and method after fracture network reconstruction, and relates to the technical field of petroleum exploration and development. The shale reservoir fluid range quantitative evaluation device comprises a rock core holder, and the rock core holder comprises an elastic coating piece with openings at two ends; an artificial rock core body which is wrapped in the elastic wrapping piece and comprises a plurality of stacked artificial rock core units, wherein gaps among the artificial rock core units are filled with apropping agent to simulate cracks which are communicated with one another; a cylinder, wherein an annular space is formed between the cylinder and the elastic wrapping piece, and a first channel communicated with the annular space is formed in the cylinder; a first end cover which is used for sealing one end of the elastic coating piece and one end of the cylinder; and a second end cover which isused for sealing the other end of the elastic coating piece and the other end of the cylinder body. The shale reservoir fluid range quantitative evaluation device also comprises an injection system;a confining pressure generation system; a vacuum-pumping system; a back pressure system; a first pressure measuring device; second pressure measuring device. According to the present invention, The shale reservoir fluid range after fracture network transformation can be quantitatively evaluated.
Description
technical field [0001] The invention relates to the technical field of petroleum exploration and development, in particular to a device and method for quantitatively evaluating fluid production range of shale reservoirs after fracture network reformation. Background technique [0002] my country's shale tight oil and gas resources are extremely rich, and it will play an indispensable role in my country's energy field in the future. Shale reservoirs have complex physical properties of low porosity and low permeability, and it is difficult to obtain economic production under natural conditions. However, with the widespread application of large-scale fracturing technology, the efficient and economical development of tight shale oil reservoirs has become a reality. After large-scale fracturing, a complex artificial fracture network will be formed in the formation near the wellbore of the shale reservoir. [0003] However, in terms of evaluating the fluid production range of sh...
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IPC IPC(8): G01N5/02G01N5/04G01N15/08
CPCG01N5/02G01N5/04G01N15/088G01N15/0893G01N2015/0866G01N2015/0813
Inventor 陈志明吴佳琦廖新维
Owner CHINA UNIV OF PETROLEUM (BEIJING)