Application of fluid-rock reaction studies to in situ recovery from oil sand deposits, Alberta, Canada—I. Aqueous phase results for an experimental-statistical study of water-bitumen-shale reactions

Boon, J.A.; Hitchon, Brian

doi:10.1016/0016-7037(83)90136-9

Cited by 7 publications

(1 citation statement)

References 17 publications

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“…Therefore, solubility might have changed within the black gouge zone, as there were both high pore pressures and high temperatures in the central part of the black gouge, although only pore pressure (not temperature) increased at the margins. Moreover, the dynamic changes of salinity and pH in pore water would significantly affect the dissolution of minerals [ Boon and Hitchin , 1983], but uncertainty about these changes makes it difficult to evaluate accurately the dissolution reactions.…”

Section: Discussionmentioning

confidence: 99%

Transport properties and dynamic processes in a fault zone from samples recovered from TCDP Hole B of the Taiwan Chelungpu Fault Drilling Project

Tanikawa

Sakaguchi

Hirono

et al. 2009

Geochem Geophys Geosyst

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[1] We measured transport properties at a confining pressure of 60 MPa in core samples from the fault zone in Hole B of the Taiwan Chelungpu Fault Drilling Project (TCDP). Permeability and specific storage of the fault gouge range from 3 Â 10 À15 to 1 Â 10 À17 m 2 and from 2 Â 10 À10 to 7 Â 10 À10 Pa À1 , respectively, and the measured hydraulic diffusivity was 6 Â 10 À5 m 2 /s, which is consistent with the data measured in situ. Numerical analysis of the thermal pressurization mechanism during the 1999 Chi-Chi earthquake using laboratory measured transport and frictional properties showed that pore pressure at the fault zone increased dramatically during slip, whereas temperature increased only moderately to 400°C at the end of slip. The results indicate that dehydration of interlayer water in smectite is plausibly caused by frictional heating, although such dehydration does not influence fault weakening. The decomposition reactions of other minerals are difficult to explain for only one slip event. A magnetic susceptibility anomaly observed in the fault zone is consistent with the modeling results, although low contents of inorganic carbon and clay minerals are not. We concluded that these inconsistencies can possibly be explained by the combined effects of enhancement of chemical reactions by mechanochemical influences and periodic movement on the Chelungpu fault. High-temperature water-rock interactions are also a possible explanation for inconsistencies.

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Section: Discussionmentioning

confidence: 99%