| 天然气水合物样品带压转移装置的抓捕机构设计 |
| 投稿时间：2021-09-09 修订日期：2022-01-04 点此下载全文 |
| 引用本文：黄柳松,卢春华,赵慧斌,等.天然气水合物样品带压转移装置的抓捕机构设计[J].钻探工程,2022,49(1):34-40.HUANG Liusong,LU Chunhua,ZHAO Huibin,et al. Capture mechanism design for the pressure transfer device for gas hydrate samples[J]. Drilling Engineering, 2022,49(1):34-40. |
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| 基金项目:中国地质调查局地质调查项目“深海钻探技术与工程支撑（广州海洋地质调查局）”（编号：DD20190584）；战略性国际科技创新合作重点专项“天然气水合物勘查开发技术联合研究”（编号：2018YFE0208200） |
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| 中文摘要:在天然气水合物岩心样品的带压转移过程中，岩心衬管抓捕装置是实现样品转移的关键。岩心抓取是在岩心管内进行，属于非可视化操作过程，同时岩心样品和抓捕器都处于高压液体中，岩心衬管与岩心管之间的间隙非常小，要保证岩心样品的原位状态，对岩心抓捕装置的结构设计、精准定位、快速抓取和释放都有很高的要求。根据该装置所需实现的抓取、拖动、定位和释放功能，设计挂盘自锁和触碰解锁机构，探针抓取衬管，经过室内抓捕实验，该机构可以顺利抓捕和解卡，其结构简单，能在压力状态下进行岩心转移，加快了天然气水合物样品的带压转移装置的研究进展。 |
| 中文关键词:天然气水合物 岩心带压转移 岩心抓捕 抓捕头 结构设计 |
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| Capture mechanism design for the pressure transfer device for gas hydrate samples |
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| Abstract:In the process of pressure transfer of gas hydrate core samples， the core capture device is the key to realize sample transfer. Core capture is carried out in the core tube， which belongs to the non-visual operation process. At the same time， the core sample and the capture device are in high pressure liquid. The gap between the core liner and the core tube is very small. To ensure the in-situ state of the core sample， there are high requirements for the structural design， accurate positioning， rapid capture and release of the core capture device. According to the capture， drag， positioning and release functions required by the device， the hanging plate self-locking and the contact unlocking mechanisms are designed， and the probe is used to capture the liner. Indoor capture experiment shows that the mechanism can successfully capture and unlock the core. The structure is simple， and the core can be transferred at pressure， which accelerates the research progress on the pressure transfer device of natural gas hydrate. |
| keywords:gas hydrate pressure transfer core capture capture head structural design |
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