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Rapid thermal excitation exploitation device for natural gas hydrate

A natural gas and hydrate technology, which is applied in the fields of fluid production, earth-moving drilling, wellbore/well components, etc., can solve the problems of restricting the commercial development and utilization of natural gas hydrate, and achieves the goal of reducing losses, simple and reliable transportation, and sufficient combustion. Effect

Inactive Publication Date: 2014-12-10
HARBIN ENG UNIV
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Problems solved by technology

Therefore, it can be seen from the existing production methods that the bottleneck restricting the commercial development and utilization of natural gas hydrates lies in how to find effective production methods that can be widely used under various gas reservoir conditions.

Method used

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  • Rapid thermal excitation exploitation device for natural gas hydrate
  • Rapid thermal excitation exploitation device for natural gas hydrate
  • Rapid thermal excitation exploitation device for natural gas hydrate

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Embodiment Construction

[0021] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.

[0022] combine figure 1 , the natural gas hydrate rapid thermal excitation production device of the present invention mainly includes a feed pipeline 13 and a collection pipeline 15, and an injection device 8 is arranged at the lower end of the feed pipeline, and combined with image 3 The injection device includes a jet pump 31 and a negative pressure booster pump 30. The upper end of the feed pipeline is connected to the booster pump device 2, and the booster pump device is connected to the collection device 1. Nano-aluminum powder 7 is housed in the collection device. The upper part of the cooling device is connected to the cooling device 4, the cooling device is connected to the collection system 5, the cooling device is equipped with a cooling water pipeline 6, a flow controller 3 is arranged on the cooling water pipeline, and the pressurized ...

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Abstract

The invention provides a rapid thermal excitation exploitation device for natural gas hydrate. The device comprises a delivery pipeline and a collection pipeline which are respectively disposed in two shafts reaching the middle-lower portion of a natural gas hydrate reservoir in depth, a jet apparatus is arranged at the lower end of the delivery pipeline and comprises a jet pump and a negative-pressure booster pump, the upper end of the delivery pipeline is connected with a pressure pump device which is connected with a collection device, the collection device is filled with nano-aluminum powder, the upper portion of the collection pipe is connected with a cooling device which is connected with a collection system, and pressure gas is inert gas nitrogen. The natural gas hydrate is decomposed rapidly mainly by the aid of a large amount of heat generated by reaction between the nano-aluminum powder and ice and removal of the ice by reaction, and the device mainly solves the problem of low thermal efficiency utilization and can be widely used under the conditions of various gas reservoirs.

Description

technical field [0001] The invention relates to a natural gas hydrate exploitation device. Background technique [0002] Natural gas hydrate is a solid crystalline substance formed by natural gas and water molecules under certain pressure and relatively low temperature. The main component of natural gas in natural gas hydrates is methane. The resource has large reserves, wide distribution range, high energy density, less impurities and no pollution. Since the first discovery of natural gas hydrate in the laboratory in 1810 and the artificial synthesis of natural gas hydrate in 1888, scholars at home and abroad have been researching and exploring natural gas hydrate. So far, three hydrate crystal structures have been discovered: I, II and H. The ideal molecular formula of structure I hydrate is 8M·46H 2 O, where M represents the guest molecule. Structure II Hydrate ideal molecular formula 24M·136H 2 O, structure H hydrate ideal molecular formula is 6M 34H 2 O. Under th...

Claims

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Application Information

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IPC IPC(8): E21B43/24
CPCE21B41/0099
Inventor 蒋运华姚跃白涛刘燕斐
Owner HARBIN ENG UNIV
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