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Fidelity sampling integrated deep sea sediment sampler

An integrated technology for deep-sea sediments, which is applied in the field of deep-sea sediment samplers to achieve the effects of compact structure, reduced requirements for hanging and placing, and improved strength such as bending resistance

Inactive Publication Date: 2005-05-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The exploration and exploitation of natural gas hydrate is a global issue. Foreign countries have entered the stage of commercial exploitation, but my country has just started and is still in the initial stage of exploration

Method used

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  • Fidelity sampling integrated deep sea sediment sampler
  • Fidelity sampling integrated deep sea sediment sampler
  • Fidelity sampling integrated deep sea sediment sampler

Examples

Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] Such as figure 1 Shown is a schematic diagram of the system structure of the present invention. It includes the following two parts:

[0022] Gravity piston type sampling mechanism: this part includes the weight mechanism (including weight 1, weight cable 2, lever 3, splint 4, etc.), hanging mechanism (including release cable 6, flow guide device 9, piston 18, etc.), Fidelity sampling cylinder (including fidelity cylinder body 17, petal 19, liner 20, etc.), accumulator 8, bolt mechanism 11 and other accessories. The weight mechanism is composed of weight 1, weight cable 2, lever 3 and splint 4. The weight 1 is hung on the weight cable 2 with a lifting screw, and the weight cable 2 is hung on the lever 3 with a shackle. The lever 3 is fixed on the main steel cable 5 through the splint 4 . The hoisting mechanism consists of a release cable 6, a deflector 9, and...

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PUM

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Abstract

The integrated deep sea sediment sampling and holding device includes sampling mechanism comprising weight mechanism, hoisting mechanism, sampling and holding barrel, energy accumulator and tongue mechanism; and sealing bin comprising bin body, flap valve, lower end cap, lower gland and turned cone. It has combined sampling and pressure holding barrel with sealed upper and lower ends, compact structure, relaxed hoisting requirement, and raised pressure and bending strength of the barrel. The device can sample sea bed sediment as well as water, gas, natural gas, etc., and hold the temperature, pressure and sample components and state, and is released and recovered with geological winch on ship and without needing other power source. It has also pressure releasing valve and gas separator interface for separating dissolved gas in sample and post-treatment.

Description

technical field [0001] The invention relates to a device for surface drilling or well drilling to obtain surface soil or liquid samples in wells, in particular to an integrated deep-sea sediment sampler for fidelity sampling. Background technique [0002] The exploration and exploitation of natural gas hydrate is a global issue, and foreign countries have entered the stage of commercial exploitation, but my country has just started and is still in the initial stage of exploration. It is of great significance to use the sediment sampler to obtain seabed sediments, and through subsequent processing and analysis, it is possible to determine whether there are natural gas hydrates under the seabed, or even directly obtain natural gas hydrates. In order to maintain the original composition and state of the sample, the sampler is required to have the function of heat preservation and pressure, that is, the fidelity function. Correspondingly, high requirements are put forward for t...

Claims

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Application Information

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IPC IPC(8): G01N1/10G01N1/28
Inventor 李世伦顾临怡叶瑛邱敏秀程毅陈鹰
Owner ZHEJIANG UNIV
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