钻井利器故事之“保真取样钻具”

天然气水合物作为一种高效清洁能源，广泛分布于海洋和冻土带中。经过近几年的勘探，在我国南海发现了储量非常丰富的天然气水合物资源，并成功进行了试开采，取得了可喜的成绩，也使我国在该领域处于国际领先地位。随着水合物勘探开发程度的进一步加快，作为水合物调查钻探取样的重要利器——保真取样钻具的保真效果已经被越来越多的研究者所关注。本文从科普的角度介绍了天然气水合物保真取样的必要性、国外发展历程及国内近年来的研究成果，以此达到相互交流、相互促进的目的，最终推动保真取样技术的国产化应用。

The story of a drilling weapon-pressure core sampler

As an efficient and clean energy resource, natural gas hydrate is widely distributed in ocean and permafrost. After exploration and development in recent years, abundant natural gas hydrate resources have been discovered in the South China Sea, and trial production has been carried out successfully. With the further acceleration of gas hydrate exploration and development, more and more researchers have paid attention to fidelity of the core sampler as an important tool for gas hydrate sampling. From the perspective of science popularization, this paper introduces the necessity of fidelity sampling of natural gas hydrate, the development process of foreign countries and the research achievements of China in recent years, so as to achieve the purpose of mutual exchange and mutual promotion, and finally promote the localized application of fidelity sampling technology.