Suction type hydrate mining device and method

Abstract

The invention discloses a suction type hydrate mining device and method. The suction type hydrate mining device comprises a rubbing device, a hose, a piston type pushing device, a suction device, a water pipeline, a seawater injection system and a mining platform. The suction type hydrate mining device can suck soft mixtures of hydrate sediments, gas and water into the pipeline; hot water doping and stirring, hydrate decomposing, gas swelling and work doing and sediment separation can be carried out in the pipeline; and the gas can be collected through the mining platform. By the suction type hydrate mining device, no machine is used for dipping in deep water, so that the mining range is expanded; therefore, relatively high mining efficiency is realized; and hydrates in soft clay sediments can be commercially mined in large scale. A new way is supplied to mining of hydrate stratums with high hydrate content of soft clay sediments in the South China Sea and other areas; and a new method is supplied to mining of energy in the soft clay sediments.

Description

technical field

[0001] The invention relates to a gas hydrate mining device and a mining method, in particular to a cutter suction type hydrate mining device and a mining method. Background technique

[0002] Natural gas hydrate is an ice-like solid compound formed by natural gas and water under high pressure and low temperature conditions. It is a new unconventional energy source with great mining potential in the 21st century. Hydrate deposits are widely distributed in terrestrial permafrost environments and deep-water formation environments such as oceans and lakes. my country has obtained hydrate sediment samples on the northern slope of the South China Sea, and analysis has confirmed that the samples are a mixture of hydrates, silty clay, gas, and water.

[0003] At present, the hydrate mining methods proposed internationally include depressurization method, heat injection method, displacement method, inhibitor method, solid excavation method, etc. In the process of d...

Examples

Embodiment Construction

[0030] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0031] Such as figure 1 As shown, the cutter-suction hydrate mining device of the embodiment of the present invention includes: crushing device ②, hose ①, piston propulsion device ③, suction device ④, water pipeline ⑥, seawater injection system ⑦ and mining platform ⑧, in,

[0032] The crushing device ② is connected with the hose ①, and is used for crushing and excavating from the vertical wellbore ⑤ to the hydrate formation along the preset inclination, and the hydration of the connecting end of the crushing hose ① and the crushing device ② sediment; the range of crushing depends on the amount of hydrate production and the loading of the hose;

[0033] The suction device ④ i...

technical field

[0001] The invention relates to a gas hydrate mining device and a mining method, in particular to a cutter suction type hydrate mining device and a mining method. Background technique

[0002] Natural gas hydrate is an ice-like solid compound formed by natural gas and water under high pressure and low temperature conditions. It is a new unconventional energy source with great mining potential in the 21st century. Hydrate deposits are widely distributed in terrestrial permafrost environments and deep-water formation environments such as oceans and lakes. my country has obtained hydrate sediment samples on the northern slope of the South China Sea, and analysis has confirmed that the samples are a mixture of hydrates, silty clay, gas, and water.

[0003] At present, the hydrate mining methods proposed internationally include depressurization method, heat injection method, displacement method, inhibitor method, solid excavation method, etc. In the process of d...

Examples

Embodiment Construction

[0030] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0031] Such as figure 1 As shown, the cutter-suction hydrate mining device of the embodiment of the present invention includes: crushing device ②, hose ①, piston propulsion device ③, suction device ④, water pipeline ⑥, seawater injection system ⑦ and mining platform ⑧, in,

[0032] The crushing device ② is connected with the hose ①, and is used for crushing and excavating from the vertical wellbore ⑤ to the hydrate formation along the preset inclination, and the hydration of the connecting end of the crushing hose ① and the crushing device ② sediment; the range of crushing depends on the amount of hydrate production and the loading of the hose;

[0033] The suction device ④ i...

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