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SPE 092

Subsurface Characterization of the Edmonton-Area Acid-Gas Injection Operations

Acid gas dissolved in water in the Redwater oil field, and the resulting weak acidic solution ("sour" water) is injected into the depleted Leduc Formation Redwater reef trough 47 alternating wells. If only the natural setting is considered, ... Show Abstract

Bachu, S.  Buschkuehle, B.E.  Haug, K.  Michael, K.  2008-04-14

SPE 090

Subsurface Characterization of Acid-Gas Injection Operations in the Peace River Arch Area, 2007

In the cases of acid-gas injection into deep saline aquifers (Gordondale-Belloy, Mulligan, Pouce Coupe, Rycroft and Wembley), the extent and migration of the acid-gas plume will likely be limited by dissolution, dispersion, residual gas saturation ... Show Abstract

Michael, K.  Buschkuehle, B.E.  2008-03-01

SPE 093

Subsurface Characterization of the Pembina-Wabamun Acid-Gas Injection Area

Subsurface Characterization of the Pembina-Wabamun Acid-Gas Injection Area If only the natural setting is considered, including geology and flow of formation waters, the basin to local-scale hydrogeological analysis indicates that injecting acid ... Show Abstract

Bachu, S.  Buschkuehle, B.E.  Haug, K.  Michael, K.  2008-04-14

SPE 091

Subsurface Characterization of Acid Gas Injection Operations in the Provost Area

By the end of 2004, approximately 350 kt of acid gas had been injected into deep geological formations in the Provost area.If only the natural setting is considered, including geology and flow of formation waters, the basin and local-scale ... Show Abstract

Michael, K.  Buschkuehle, B.E.  2008-03-01

SPE 095

Subsurface Characterization of the Brazeau Nisku Q Pool Reservoir for Acid Gas Injection

Abstract: The experience gained since the start of the first acid-gas injection operation in Canada in 1989 shows that, from an engineering point of view, acid-gas disposal is a well-established technology. Close to 1.5 Mt CO2 and 1 Mt H2S have been successfully injected into deep hydrocarbon reservoirs and saline aquifers in Alberta and British Columbia. A major issue that has not been addressed is the containment and long-term fate of the injected acid gas. Although no incidents of long-range migration or leakage have been detected and reported to date, both operators and regulatory agencies should consider this issue.The Alberta Energy and Utilities Board recently approved injection of acid gas into the Nisku Q Pool in the Pembina-Brazeau area in Alberta. The operator has met all the current requirements for obtaining regulatory approval; however, the application does not contain a comprehensive hydrogeological analysis because currently it is not required.If only the natural setting is considered, including geology and flow of formation waters, the basin to site-scale hydrogeological analysis indicates that injecting acid gas into the Nisku Q Pool is basically a safe operation with no potential for acid-gas migration to shallower strata, potable groundwater and the surface. There are many physical and hydrodynamic barriers to acid-gas migration from the injection formation into other strata, and the flow process, if it will ever happen, would take an extremely long time on a geological time scale. Any acid-gas plume would disperse and dissolve in formation water during flow on such large time and spatial scales.Based on available data, it seems there is no potential for acid-gas leakage through fractures. However, the possibility for upward leakage of acid gas exists along wells that were improperly completed and/or abandoned, or along wells whose cement and/or tubing have degraded or may degrade in the future as a result of chemical reactions with formation brine and/or acid gas. Place Keywords 83b 83c 83f 83g alberta brazeau canada Theme Keywords acid gas co2 geology hydrogeology injection lithology stratigraphy

Bachu, S.  Buschkuehle, B.E.  Michael, K.  2008-04-14

MEM 02

Geology and groundwater resources of the Milk River sandstone in Southern Alberta

When the general decline of water levels in many of the deep wells in southern Alberta warned of a serious future problem, the Alberta Federation of Agriculture requested the Research Council of Alberta to investigate the groundwater conditions in ... Show Abstract

Meyboom, P.  1960-01-01

BUL 058

Hydrogeology of the Swan Hills Area, Alberta: Evaluation for deep waste injection

A detailed hydrogeological study was carried out in a region defined as Tp 62-74 R 1-13 W5M, comprising 15 760 square km effectively centered on the Special Waste Injection Site of the Alberta Special Waste Management Corporation. The objective was ... Show Abstract

Hitchon, B.  Sauveplane, C.M.  Bachu, S.  Koster, E.H.  Lytviak, A.T.  1989-01-01

BUL 059

Hydrogeological and geothermal regimes in the Phanerozoic succession, Cold Lake area, Alberta and Saskatchewan

The natural, steady-state fluid flow and geothermal regimes were determined for a region defined as Tp 50-70, R 15 W3M to R 17 W4M (60 000 km2), including the Cold Lake Oil Sand Deposit and adjacent heavy oil areas to the south. Data processing was ... Show Abstract

Hitchon, B.  Bachu, S.  Sauveplane, C.M.  Ing, A.  Lytviak, A.T.  1989-01-01

BUL 035

Contributions to the Hydrogeology of Alberta

Information includes map production procedures, description of reconnaissance maps and description of how the maps were used in the program. The program planned to publish hydrogeological maps of the groundwater conditions and their controlling ... Show Abstract

Toth, J.  Ozoray, G.F.  Wallick, E.I.  Bibby, R.  Gabert, G.M.  Stein, R.  Lytviak, A.T.  1977-01-01

BUL 031

Hydrogeology of Red Deer and Vicinity, Alberta

The field program comprised the drilling of 17 test holes totaling 7 906 feet, 33 bail tests, 3 long pump tests, the collection of 108 water samples, and the measurement of water levels nd water temperatures. A two-dimensional, quantitative flow ... Show Abstract

Gabert, G.M.  1975-01-01