A case for renewed development of a mature gas field: the Devonian Swan Hills Formation at Kaybob South field, Alberta, Canada

Atchley, Stacy C.; Cleveland, David M.; West, Lawrence W.

doi:10.2113/gscpgbull.56.2.165

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…Direct replacement of matrix limestone mud to dolomite can result in a substantial (13%) increase in interparticle or intercrystalline porosity, effectively enhancing permeability in dolomitized strata [ Machel , ]. Swan Hills reefs at Rosevear and Hanlan fields have undergone a similar diagenetic history to the CLS study area [ Walls and Burrowes , ; Saller et al ., ] and dolomite reservoirs in these fields are characterized by significantly higher porosities (2–5 times) and permeabilities (2–63 times) than their limestone counterparts [ Saller et al ., ; Atchley et al ., ]. Both the Swan Hills Formation platform and the overlying Leduc Formation reefs have been preferentially dolomitized around faults (CLS) and in the vicinity of the induced seismic events [ Duggan et al ., ; Green and Mountjoy , ].…”

Section: Geological Considerationsmentioning

confidence: 99%

Linking fossil reefs with earthquakes: Geologic insight to where induced seismicity occurs in Alberta

Schultz¹,

Corlett²,

Haug³

et al. 2016

Geophysical Research Letters

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Recently, a significant increase in North American, midcontinent earthquakes has been associated with contemporaneous development of petroleum resources. Despite the proliferation of drilling throughout sedimentary basins worldwide, earthquakes are only induced at a small fraction of wells. In this study, we focus on cases of induced seismicity where high‐resolution data are available in the central Western Canada Sedimentary Basin. Our regional comparison of induced earthquake depths suggests basement‐controlled tectonics. Complementary to these findings, hypocenters of induced seismicity clusters coincide with the margins of Devonian carbonate reefs. We interpret this spatial correspondence as the result of geographically biased activation potential, possibly as a consequence of reef nucleation preference to paleobathymetric highs associated with Precambrian basement tectonics. This finding demonstrates the importance of geologic/tectonic factors to earthquake induction, in addition to industrial operational parameters. In fact, the observation of induced seismicity silhouetting deep fossil reef systems may be a useful tool to identify future regions with increased seismogenic potential.

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Section: Geological Considerationsmentioning

confidence: 99%

Linking fossil reefs with earthquakes: Geologic insight to where induced seismicity occurs in Alberta

Schultz¹,

Corlett²,

Haug³

et al. 2016

Geophysical Research Letters

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“…The largest Canadian gas condensate field was discovered in 1961 in Alberta (Viakhirev et al, 2002;Atchley et al, 2008). The reservoirs are associated with porous reef dolomites and tight carbonates with 104 billion m 3 of initial gas and 48 million tonnes of condensate in place.…”

Section: Kaybob (Alberta Canada)mentioning

confidence: 99%

Enhanced Gas and Condensate Recovery: Review of Published Pilot and Commercial Projects

Burachok¹

2021

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The majority of the Ukrainian gas condensate fields are in the final stage of development. The high level of reservoir energy depletion has caused significant in situ losses of condensed hydrocarbons. Improving and increasing hydrocarbon production is of great importance to the energy independence of Ukraine. In this paper, a review of the pilot and commercial enhanced gas and condensate recovery (EGR) projects was performed, based on published papers and literature sources, in order to identify those projects which could potentially be applied to the reservoir conditions of Ukrainian gas condensate fields. The EGR methods included the injection of dry gas (methane), hydrocarbon solvents (gas enriched with C2–C4 components), or nitrogen and carbon dioxide. The most commonly used and proven method is dry gas injection, which can be applied at any stage of the field’s development. Dry gas and intra-well cycling was done on five Ukrainian reservoirs, but because of the need to block significant volumes of sales gas they are not being considered for commercial application. Nitrogen has a number of significant advantages, but the fact that it increases the dew point pressure makes it applicable only at the early stage, when the reservoir pressure is above or near the dew point. Carbon dioxide is actively used for enhanced oil recovery (EOR) or for geological storage in depleted gas reservoirs. In light of the growing need to reduce carbon footprints, CO2 capture and sequestration is becoming very favourable, especially due to the low multi-contact miscibility pressure, the high density under reservoir conditions, and the good miscibility with formation water. All of these factors make it a good candidate for depleted gas condensate reservoirs.

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“…56%가 생산되어 성숙 가스전으로 분류되고 있다 (Atchley et al, 2008). Clarke Lake Gas Field는 British Columbia 주 에 위치하고 있으며(Fig.…”

Section: 중소규모 가스전 개발 동향unclassified

“…Fig.5. Location of the onshore gas field cases in Canada(Atchley et al, 2008;Jardine and Wilshart, 1982).…”

mentioning

confidence: 99%

Trends of Development and Utilization for Small and Medium Gas Fields

Shin¹,

Lee²,

Lim³

2021

ksmer

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The demand for natural gas has increased because it emits fewer harmful gases, such as carbon dioxide, than coal or oil. In addition, the development of small and medium gas fields as a way to secure energy resources is becoming increasingly important due to a decrease in the discovery of new gas fields and an increase in oil prices. Although small and medium gas fields account for about 40% of all gas fields globally, commercialization for gas power generation is not possible because it was difficult to ensure economic feasibility using LNG or GTL. In this study, the development cases for small and medium onshore and offshore gas fields were reviewed. Also, trends of gas utilization technology in small and medium gas fields were investigated, and gas power generation status was examined. It can be used as basic data when establishing the optimal plan for small and medium gas field development.

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A case for renewed development of a mature gas field: the Devonian Swan Hills Formation at Kaybob South field, Alberta, Canada

Cited by 4 publications

References 23 publications

Linking fossil reefs with earthquakes: Geologic insight to where induced seismicity occurs in Alberta

Linking fossil reefs with earthquakes: Geologic insight to where induced seismicity occurs in Alberta

Enhanced Gas and Condensate Recovery: Review of Published Pilot and Commercial Projects

Trends of Development and Utilization for Small and Medium Gas Fields

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