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Gas hydrate pipeline conveying method and gas hydrate pipeline conveying device

A technology of gas hydrates and hydrates, applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., to achieve the effects of improving safety and economy, preventing deposition, and enhancing heat exchange efficiency

Active Publication Date: 2013-02-13
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] The content of the present invention will be further described in detail below with reference to the drawings and specific implementations:

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

[0036] Regarding the gas gathering unit, such as figure 2 , Including computer data acquisition device 1, filter 2, delivery pump 3, pressure gauge 4, thermometer 5, flow meter 6, dosing port 7, natural gas inlet pipeline 8, compressor 9, pretreatment device 10, sea water inlet pipeline 11 , Pressure agent 12, temperature agent 13, flow meter 14 and gas-liquid mixer 15, etc.; natural gas is extracted from the submarine gas field by the offshore drilling platform and transported to the pretreatment unit 10 through the compressor 9 to perform preliminary purification of the natural ga...

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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 specifically relates to a pipeline transportation method and equipment for natural gas hydrates. It is mainly used for submarine pipeline natural gas transportation in the process of oil and natural gas storage and transportation, and pipeline natural gas transportation under severe land conditions. In the field, it can also be used in the storage and transportation of other gases and gas separation by hydrate method. Background technique [0002] Submarine oil and natural gas reserves are extremely rich, ranking first among marine mineral resources. Submarine oil and natural gas transportation is an important part of submarine oil and gas field exploitation, and pipeline transportation is the most common method. Since the Brown & Root Marine Engineering Company laid the first submarine pipeline in the Gulf of Mexico in 1954, people have successfully laid countless submarine pipelines of vari...

Claims

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Application Information

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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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