TEMPERATURE GRADIENT ADDITION TYPE CORE HOLDER DEVICE AND COMPONENT OUTPUT BEHAVIOR TIME VARIATION MEASURING METHOD USING THE SAME

• Main Authors: KAMATA SHIGERU, HAGIWARA KAZUNORI, EBINUMA TAKAO, SAKAMOTO YASUHIDE, NARITA HIDEO, YAMAMOTO YOSHITAKA, KAWAMURA TARO, FUJIHIRA YOSHIKAZU
• Format: Patent
• Language: English
• Published: 14.12.2006
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a temperature gradient addition type core holder device and a component analysis method using the device having an effective temperature control mechanism in the device adding a temperature gradient covering from low temperature to high temperature, to a core while applying rock pressure/hydrostatic pressure to the core in measurement using a core sample particularly in a cold district, the sea bottom, or the like. SOLUTION: The temperature gradient addition type core holder device has a high pressure injection device having a cylindrical core sample fixed with two end caps inside a temperature control jacket of pressure-proof structure and capable of carrying out press-in of a confining pressure applying fluid inside the temperature control jacket and press-in/discharge of the confining pressure applying fluid to the outside. A fluid for phase transition of internal components and extraction of components is pressed in, and gas produced from the core sample, and various components are extracted and taken out. A plurality of independent spaces are formed in desired parts in the temperature control jacket, and heat media of desired temperatures respectively are convected in the independent spaces of the desired parts through valves. COPYRIGHT: (C)2007,JPO&INPIT