An experimental device for observing the flow law of fluid in a fracture network model
A technology of fracture network, experimental device, applied in the field of rock seepage
Active Publication Date: 2020-10-27
BEIJING UNIV OF TECH
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However, there is no experimental device that can comprehensively consider these factors, so a device that can comprehensively consider the influence of pressure, gravity, and the size and shape of the fracture network model on the flow law of fluid in the fracture network model is very necessary
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[0026] The experimental device will be further described below in conjunction with the accompanying drawings and specific examples.
[0027]The technical problem to be solved by the content of the present invention is to provide a device for visually observing the flow of fluid in a fracture network model under different pressurization methods and different fluid densities. The device can not only provide two pressurization methods of unpowered and powered, which can be selected according to the needs of the experiment, but also can provide different fracture network models and horizontal and vertical plane inclination angles, considering the fluid under different severity The flow law of the model can also consider the shape of the entire fracture network model. This device is all made of transparent acrylic plates, which can visually observe the flow law of the fluid during the experiment. More importantly, this device can also compare the flow of fluids in multiple groups o...
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The invention discloses an experimental device for observing a flowing rule of fluid in a fracture network model, and belongs to the field of rock seepage. The shape and the size of the fracture network model required in an experiment are firstly determined, and an adapter and an accommodating model device which are matched with the fracture network model are used; an inclined pipe a or an inclined pipe b or an inclined pipe c or an inclined pipe d which is required in the experiment is selected; plugs are plugged on the non-required inclined pipes; the adapter and one or more required inclined pipes are connected through threads; if relatively low pressure is needed, a valve is opened; if relatively high pressure is needed, power is used to realize pressurization to close the valve, and then an air compressor is turned on. The experimental device disclosed by the invention can simultaneously perform fluid seepage in the fracture network model at multiple different angles in one groupof experiment, so that the time is shortened; the seepage conditions of the fluid in the fracture network model at different angles can be observed more visually.
Description
technical field [0001] The invention relates to the field of rock seepage, in particular to a device and method for considering flow rules in a fracture network model under the action of different fluid factors. Background technique [0002] Nowadays, the seepage of fluid in rock mass fractures is often used in fields such as oil and gas storage, oil exploitation, and water conservancy projects, and its law of seepage has begun to be widely studied. Considering the seepage of fluid in rock mass fissures in real life, not only need to consider the pressure when the fluid enters and exits, but also need to consider the angle between the rock mass fissures and the horizontal plane and vertical plane, different angles will cause the fluid to be affected different gravity, thus affecting the seepage of the fluid, and the actual rock mass shape is not only the cuboid fracture network model commonly used in existing experiments, but also often has a cylindrical or other shape. The...
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IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 范立峰李博王惠栋
Owner BEIJING UNIV OF TECH