Natural gas hydrate reservoir seepage visualization test device and use method thereof
A test device and hydrate technology, which is applied in the fields of mining fluid, earthwork drilling, wellbore/well components, etc., can solve the problems that restrict the long-term stable and high-efficiency production of natural gas hydrate resources, sand production, concentrated water production, etc., and achieve Accelerate the effect of safe mining methods, strong practicability, and accelerated commercialization
Active Publication Date: 2022-02-01
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
[0003] According to the drilling data, there are heterogeneous deposits between the layers of gas hydrate reservoirs during the geological deposition process, resulting in obvious interlayer differences in saturation, permeability, mechanical properties, etc. Heterogeneity, serious problems such as concentrated water production and sand production are prone to occur in the production process, which greatly restricts the long-term stable and high-efficiency production of large-scale natural gas hydrate resources
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] refer to Figure 1-6 , a gas hydrate reservoir seepage visualization test device, including a test space, the test space is provided with a mold making part and a simulation test part; the mold making part ...
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The invention discloses a natural gas hydrate reservoir seepage visualization test device which comprises a test space, and a molding part and a simulation test part are arranged in the test space. The molding part comprises a frame, the top end of the frame is fixedly connected with a mold pressing assembly, and a mold cavity is formed below the mold pressing assembly; an oblique angle delta is arranged at the bottom end of the mold pressing assembly; the simulation test part comprises a test cavity, and two ends of the test cavity respectively communicate with a fluid supply assembly and a fluid recovery assembly; the fluid supply assembly is provided with a first sensor, the fluid recovery assembly is provided with a second sensor, and the first sensor and the second sensor are electrically connected with a data collection assembly; and a shooting device is arranged in front of the test cavity and electrically connected with the data collection assembly. The device is simple in structure and high in practicability, various conditions of the natural gas hydrate reservoir can be effectively simulated, theoretical and data support is provided for research on the seepage mechanism of the natural gas hydrate, and a safe mining method for research on the natural gas hydrate is accelerated.
Description
technical field [0001] The invention relates to the field of natural gas hydrate experimental devices, in particular to a natural gas hydrate reservoir seepage visualization test device and a use method thereof. Background technique [0002] Natural gas hydrate is a new type of strategic energy that is clean, efficient and has huge reserves. The governments of the United States, Japan, India, South Korea, and Germany have invested a lot of manpower and financial resources to conduct systematic and in-depth research on natural gas hydrate in order to realize natural gas hydration. Large-scale safe mining of minerals. The research on natural gas hydrate in my country started relatively late, but developed rapidly. In the "National Medium- and Long-Term Science and Technology Development Plan Outline" (2006-2020), the marine frontier technology proposed "focus on research and development of natural gas hydrate exploration and development technology" and "breakthrough in natura...
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IPC IPC(8): E21B49/00E21B47/002E21B43/01
CPCE21B49/00E21B47/002E21B41/0099
Inventor公彬蒋宇静张瑞琪纳赛尔·戈尔萨纳米李彦龙毕延续
OwnerSHANDONG UNIV OF SCI & TECH