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Gas hydrate pipeline conveying method and gas hydrate pipeline conveying device

A gas hydrate and hydrate technology, applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., to improve safety and economy, increase production speed, and avoid pipeline blockage

Active Publication Date: 2013-12-18
溧阳常大技术转移中心有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency gas hydrate pipeline transportation technical equipment for a series of problems in the current submarine pipeline transportation of natural gas

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  • Gas hydrate pipeline conveying method and gas hydrate pipeline conveying device
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  • Gas hydrate pipeline conveying method and gas hydrate pipeline conveying device

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment the content of the present invention is described in further detail:

[0035] The present invention is a gas hydrate pipeline transportation method and equipment, such as figure 1 As shown, it includes three parts: gas collection unit, hydrate generation and transportation unit, and hydrate separation and decomposition unit.

[0036] Regarding gas collecting units, such as figure 2 , including a computer data acquisition device 1, a filter 2, a delivery pump 3, a pressure gauge 4, a thermometer 5, a flow meter 6, a dosing port 7, a natural gas inlet pipeline 8, a compressor 9, a pretreatment device 10, and a seawater inlet pipeline 11 , pressure agent 12, temperature agent 13, flowmeter 14 and gas-liquid mixer 15, etc.; natural gas is extracted from the seabed gas field by the offshore drilling platform and transported to the pretreatment device 10 through the compressor 9, and the natural gas is ...

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Abstract

The invention belongs to the field of petroleum engineering, and particularly relates to a pipeline conveying method and a pipeline conveying device for natural gas hydrate. The gas hydrate pipeline conveying device comprises a gas collecting unit, a hydrate generating and transporting unit, and a hydrate separating and decomposing unit. Correspondingly, the gas hydrate pipeline conveying method also comprises the steps of collecting gas, generating and transporting hydrate, and separating and decomposing hydrate. According to the gas hydrate pipeline conveying method and the gas hydrate pipeline conveying device, helical gas hydrate pipeline conveying method is adopted, chemicals such as a depressor, and an inhibitor are not added, and therefore, pipeline blockage is completely avoided and the safety and economics of conveying the natural gas is improved. Compared with traditional natural gas pipeline conveying, the economic benefits are increased by 20-30%. Coiled tube type hydrate and generating device are adopted, and low-temperature environment in sea bottom is utilized to generate hydrate, and the continuous generation of the gas hydrates is guaranteed. Different land processing methods are adopted to meet different conveying requirements of a natural gas market. Besides, the comprehensive efficiency of the system is improved.

Description

technical field [0001] The invention belongs to the field of petroleum engineering, and in particular relates to a method and equipment for pipeline transportation of natural gas hydrate, which is mainly used in petroleum projects such as the transportation of natural gas through submarine pipelines during the storage and transportation of petroleum and natural gas, and the transportation of natural gas through pipelines under harsh conditions on land. In the field, it can also be used in the storage and transportation of other gases and the separation of hydrate gas. Background technique [0002] Submarine oil and natural gas reserves are extremely rich, ranking first among marine mineral resources. Subsea oil and natural gas transportation is an important part of the exploitation of subsea oil and gas fields, among which pipeline transportation is the most common way. Since Brown & Root Offshore Engineering Company laid the first submarine pipeline in the US Gulf of Mexic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/02
Inventor 王树立饶永超周诗岽李恩田
Owner 溧阳常大技术转移中心有限公司
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