Strategies for gas production from hydrate accumulations under various geologic conditions

Conference · Tue Apr 29 00:00:00 EDT 2003

OSTI ID:812453

Moridis, G; Collett, T

In this paper we classify hydrate deposits in three classes according to their geologic and reservoir conditions, and discuss the corresponding production strategies. Simple depressurization appears promising in Class 1 hydrates, but its appeal decreases in Class 2 and Class 3 hydrates. The most promising production strategy in Class 2 hydrates involves combinations of depressurization and thermal stimulation, and is clearly enhanced by multi-well production-injection systems. The effectiveness of simple depressurization in Class 3 hydrates is limited, and thermal stimulation (alone or in combination with depressurization) through single well systems seems to be the strategy of choice in such deposits.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Assistant Secretary for Fossil Energy. Gas (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 812453
• Report Number(s): LBNL-52568; R&D Project: G30801; TRN: US200314%%78
• Resource Relation: Conference: TOUGH Symposium 2003, Berkeley, CA (US), 05/12/2003--05/14/2003; Other Information: PBD: 29 Apr 2003
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
DEPRESSURIZATION
GAS HYDRATES
PRODUCTION
THERMAL RECOVERY
RESERVOIR ENGINEERING
NATURAL GAS DEPOSITS