A method, device and equipment for determining the occurrence state of natural gas hydrate
A technology of occurrence state and determination method, which is applied in the field of natural gas hydrate to achieve the effect of ensuring effective exploitation
Active Publication Date: 2022-02-01
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
[0004] The purpose of the embodiment of this specification is to provide a method, device and equipment for determining the occurrence state of natural gas hydrate to solve the problem of how to determine the occurrence state corresponding to natural gas hydrate
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[0037] Next, the technical solutions in the present specification are clearly and completely described, and the described embodiments are merely described in the present specification, not all of the embodiments of the present specification. Based on the embodiments in this specification, one of ordinary skill in the art should belong to the scope of this specification without making all other embodiments obtained by creative labor.
[0038] In order to solve the above technical problems, the present specification embodiment proposes a method of determining a natural gas hydrated compound. The execution body of the natural gas hydrate intrinsic state determination method is a natural gas hydrate intrinsic determination apparatus, and the natural gas hydrate intrinsic state determination apparatus includes, but is not limited to, a server, a industrial computer, a PC, and the like. like figure 1 As shown, the natural gas hydrate intrinsic state determination method can specifically...
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Abstract
The embodiment of this specification provides a method, device and equipment for determining the occurrence state of natural gas hydrate. The method includes: during the process of decompressing the natural gas hydrate sample, measuring the X-CT image information corresponding to the natural gas hydrate sample; using the X-CT image information to construct a The three-dimensional hydrate data volume of the sample; identifying at least one hydrate sub-block in the three-dimensional hydrate data volume; calculating the structure category and structural evaluation value of each hydrate sub-block based on the morphological characteristics of the hydrate sub-block Obtaining the Euler coefficient corresponding to the gas hydrate sample according to the structure type; determining the occurrence state of the gas hydrate sample through the structure evaluation value and the Euler coefficient. The above method quantitatively determines the corresponding occurrence state, and then can determine the corresponding production plan according to the occurrence state, which ensures the effective exploitation of natural gas hydrate.
Description
Technical field [0001] Embodiments of the present specification relate to the technical field of natural gas hydrate, and more particularly to a natural gas hydrated compound state determination method, apparatus, and equipment. Background technique [0002] Natural gas hydrate is a cage-like-shaped solid substance formed by water molecules and gas molecules under low temperature and high pressure conditions. Natural gas hydrate has the advantages of high energy density and high resource quantity, and is a great potential alternative energy source. Implementing the mining utilization of natural gas hydrates can greatly alleviate energy demand. [0003] Since the natural gas hydrate is stably survived at low temperatures and high pressure conditions. In the process of actual development, even the natural gas hydrated collateral in the initial saturation is hidden, there is a significant difference, such as a pore filling type, a particle contact type, a contact bearing type, and t...
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IPC IPC(8): G01N23/046
CPCG01N23/046
Inventor 王代刚宋考平卢海龙刘昌岭张准李承峰孙建业
Owner CHINA UNIV OF PETROLEUM (BEIJING)