Pressurized core barrel for sampling gas-charged marine sediments
This paper describes a recently developed pressurized core barrel which can sample gas-charged sediments and maintain them at the downhole pressure for subsequent testing. The pressurized samples are placed in a hyperbaric chamber manned by geotechnically trained ''divers''. Here, various tests are performed on the samples at the downhole pressure. These tests include undrained shear strength and gas content determinations. Additional tests, such as consolidation and triaxial compression, are performed by mounting samples in pressurized test devices which are then passed out of the hyperbaric chamber. The pressurized core barrel was designed to be operated in a standard geotechnical borehole. A discussion of the design features is presented.
- Research Organization:
- Tex AandM Univ, College Station, USA
- OSTI ID:
- 5492223
- Report Number(s):
- CONF-8105157-
- Journal Information:
- Offshore Technol. Conf.; (United States), Vol. 4; Conference: 13. annual offshore technology conference, Houston, TX, USA, 4 May 1981
- Country of Publication:
- United States
- Language:
- English
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OPERATION
ATLANTIC OCEAN
CARIBBEAN SEA
DRILLING EQUIPMENT
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030200* - Natural Gas- Reserves
Geology
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