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http://dx.doi.org/10.9720/kseg.2014.3.423

Development of a Pressure Core Sampler with Built-in Data Logging System  

Kim, Sang Il (Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology)
Cho, Young Hee (Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology)
Ki, Jung Seck (GeoScan Co., Ltd.)
Kim, Dong Wook (GeoScan Co., Ltd.)
Lee, Kye Kwang (Mirae industries Co., Ltd.)
Kim, Hae Jin (Mirae industries Co., Ltd.)
Choi, Kook Jin (Dept. of Mechatronics, Korea Polytechics VII)
Publication Information
The Journal of Engineering Geology / v.24, no.3, 2014 , pp. 423-429 More about this Journal
Abstract
Development of a reservoir pressure core sampler (PCS) with a built-in data logging system (DLS) for recording real-time temperature and pressure observations is critical in domestic hydrocarbon production to accurately measure and monitor reserves of shale gas, coalbed methane, and gas-hydrate. Another purpose of this new technology is to minimize the loss of gas from the core as the drill core is collected. This is accomplished by maintaining the pressure of the sample from the moment the drill core is obtained at depth, thus allowing an accurate analysis of shale gas, coalbed methane gas, and gashydrate within the core. Currently, the United States and European countries have monopolized the development and marketability of PCS technologies. We are thus developing a reservoir PCS by analyzing the operating principle and mechanisms of the existing PCS, and by conducting tests on the existing PCS. We further aim to develop a PCS with a maximum operating pressure of 100 bar, a maximum operating temperature of $-20^{\circ}C$ to $40^{\circ}C$, and a pressure loss rate of 10%.
Keywords
unconventional gas; shale gas; coalbed methane gas; gas-hydrate; reservoir PCS;
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