| 保压取样钻具内岩心温压采集器的研制与应用 |
| 投稿时间：2021-10-09 修订日期：2022-04-21 点此下载全文 |
| 引用本文：邓都都,阮海龙,赵义,等.保压取样钻具内岩心温压采集器的研制与应用[J].钻探工程,2022,49(6):116-121.DENG Dudu,RUAN Hailong,ZHAO Yi,et al. Development and application of the temperature and pressure collector in the pressure core sampler[J]. Drilling Engineering, 2022,49(6):116-121. |
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| 基金项目:国家重点研发计划项目“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:在绳索取心钻探过程中，井底温度与压力的实时测量，有助于改进取心工艺，提高岩心采取率；同时岩心在井底的原位测量数据对于了解岩心的物理特性有着重要意义，这一点在海域天然气水合物勘探中尤为明显。本文主要介绍了一种内置于保压取样钻具中的温压采集器的结构及其工作原理。该采集器采用干电池供电，单次工作时间>72 h，能够采集与存储整个取样过程中岩心管内的温度与压力参数，与电脑端连接后就能得到全部数据。通过搭载海洋地质十号钻探船，该采集器完成了一个回次的海试试验，得到了整个绳索取心钻进过程的温度与压力数据。经过分析，收集到的数据与实际取心工艺过程相符，数据平稳可靠。 |
| 中文关键词:绳索取心钻进 保压取样钻具 温压采集 原位测量 海域天然气水合物 |
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| Development and application of the temperature and pressure collector in the pressure core sampler |
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| Abstract:Real-time measurement of downhole temperature and pressure is helpful to improve the coring process and increase core recovery during wireline core drilling. At the same time， the downhole in-situ measurement data is of great significance to understand the physical characteristics of core， especially in the exploration of gas hydrate in the sea. The structure and working principle of the temperature and pressure collector are introduced in this paper. The collector is powered by dry battery and can work for a measurement run more than 72h. It can collect and store temperature and pressure parameters in the core barrel during the whole sampling process. The data can be obtained when it is connected with the computer. The collector completed a test run onborad the Marine Geology 10 drilling vessel， and obtained temperature and pressure data for the entire wire-line coring process. Analysis shows that the data is consistent with the actual coring process， and the collected data is stable and reliable. |
| keywords:wire-ine core drilling pressure core sampler temperature and pressure collection in-situ measurement gas hydrate in the sea |
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