Mineral Trapping of CO2 in Operated Hydrogeothermal Reservoirs

Michael Kuhn, Christoph Clauser, Katrin Vosbeck, Helge Stanjek, Volker Meyn, Martin Back, Stefan Peiffer

AAPG Special Volumes

... can be buffered and the solubility product of calcite is exceeded. Alkalinity can be provided either in situ through the weathering of feldspars...

Geohistory Analysis and Petroleum Reservoir Characteristics of Lower Cretaceous (Neocomian) Sandstones, Eastern Kopet-Dagh Basin, Northeastern Iran (1)

REZA MOUSSAVI-HARAMI and ROBERT L. BRENNER

AAPG Bulletin

... by the compacting sediment column were acidic enough to dissolve calcite cement in the lower sandstone units in this part of the Shurijeh, but were buffered...

Applying deep learning for identifying bioturbation from core photographs

Eric Timmer, Calla Knudson, and Murray Gingras

AAPG Bulletin

.... Slide a 128 × 128 px nonoverlapping window, buffered at 64 px, on all sides of the core photographs so that the image edges are ignored. 5. At each step...

Coalbed Methane in the United States: A GIS Study, by Samuel H. Limerick, #10066 (2004).

Search and Discovery.com

Reservoir Geochemistry: The Changing Landscape from the 1950s to the Present, #70409 (2020).

David K. Baskin, Mark A. McCaffrey,

Search and Discovery.com

... T, maximum rate @ < 40oC). • “Nutrient supply from the aquifer and adjacent shales, mostly buffered by mineral dissolution, probably provides...

Fluvial–Eolian Interactions In Sediment Routing and Sedimentary Signal Buffering: An Example From the Indus Basin and Thar Desert

Amy E. East, Peter D. Clift, Andrew Carter, Anwar Alizai, Sam VanLaningham

Journal of Sedimentary Research (SEPM)

... in the depocenter, especially those of large drainage basins. In this manner, erosional pulses caused by climatic change or tectonic events may be “buffered...

Secondary Porosity in Sandstones: Significance, Origin, Relationship to Subaerial Unconformities, and Effect on Predrill Reservoir Quality Prediction

Salman Bloch

Special Publications of SEPM

...) will cause dissolution of carbonate in the ab­ sence of some other control on pH. However, if pH is buffered (controlled by the reaction as H+ is added...

Revealing the genesis of limestone-marl alternations: a taphonomic approach

Theresa Nohl, Emilia Jarochowska, Axel Munnecke

PALAIOS

... this process (buffered compaction). If the PA L A I O S TAPHONOMIC BIAS IN LIMESTONE-MARL ALTERNATIONS FIG. 13.—Limestone and marl from the Vaur...

A 600-Million-Year Carbonate Clumped-Isotope Record from the Sultanate of Oman

Kristin D. Bergmann, Said A.K. Al Balushi, Tyler J. Mackey, John P. Grotzinger, John M. Eiler

Journal of Sedimentary Research (SEPM)

... affects fluid flow through carbonate stringers. Thus, dissolution and reprecipitation of carbonate stringers would have occurred in a rock-buffered...

Multistage Dolomitization of the Mississippian Turner Valley Formation, Quirk Creek Field, Alberta: Chemical and Petrologic Evidence

Ihsan S. Al-Aasm, Fenghu Lu

CSPG Special Publications

... composition diluted somewhat by meteoric fluids. The δ13C was buffered by carbonate precursors. Megadolomite has the lowest δ18O values and comparable...

Clay Minerals in North Sea Sandstones

Knut Bjørlykke, Per Aagaard

Special Publications of SEPM

... saturation with car bonate and silicate minerals At low temperatures the pH is likely rates 1984 be carbonate buffered due to to higher for carbonate...

Timing of Hydrocarbon Generation, Organic-Inorganic Diagenesis, and the Formation of Abnormally Pressured Gas Compartments in the Cretaceous of the Greater Green River Basin: A Geochemical Model

Donald B. MacGowan, Mario Garci-Gonzalez, Douglas R. Britton, Ronald C. Surdam

Wyoming Geological Association

... to the buffered (or "fixed") pH, carbonate minerals will become chemically stable (Surdam et al, 1984). Precipitation of carbonate minerals will only...

Vein Formation in Cretaceous Carbonates in the Laramide Foreland Fold and Thrust Belt of Eastern Mexico

H. Ferket, R. Swennen, S. Ortuo-Arzate, M. C. Cacas, F. Roure

AAPG Special Volumes

...-scale transport. The infilling cement phases are typically host rock buffered. Because of dissolution in the host rock and precipitation at another...

Eolian Components in Cretaceous and Tertiary North Atlantic Sediments

Andrew Lever, I. Nicholas McCave

Journal of Sedimentary Research (SEPM)

... buffered with sodium bicarbonate: Clays Clay Minerals, Proc. 7th National Conference (Pergamon, London), p. 317-327. MELIERES, F., 1978, X-ray mineralogy...

Chemical and Sr-Isotopic Variations During Diagenesis of Miocene Siliceous Sediments of the Monterey Formation, California

Hannes K. Brueckner, Walter S. Snyder

Journal of Sedimentary Research (SEPM)

... for as long as externally buffered pore fluids interact freely with the solid phases. Only after the phases are isolated from interaction with pore...

Petrologic and Experimental Evidence for the Etching of Garnets by Organic Acids in the Upper Jurassic Morrison Formation, Northwestern New Mexico

Paula L. Hansley

Journal of Sedimentary Research (SEPM)

...--1986, Program and Abstracts: U.S Geol. Surv. Circular 974, p. 73-74. WOLLAST, R., 1967, Kinetics of alteration of K-feldspar in buffered solutions...

Updip to Downdip Cementation and Dolomitization Patterns in a Mississippian Aquifer, Appalachians

W. A. Nelson, J. F. Read

Journal of Sedimentary Research (SEPM)

... organic carbon such as from oxidation or decarboxylation f acetates, in a system dominantly buffered by marine carbon from the host-limestone, or less...

Stable Carbon and Oxygen Isotope Evidence of Cretaceous Sea-Level Fluctuations Recorded in Septarian Concretions from Pueblo, Colorado, U.S.A.

Mario Coniglio , Paul Myrow , Tim White

Journal of Sedimentary Research (SEPM)

... effectively buffered by dissolved rock or marine mineral phases, which are no longer present, although fluid 18O values were still largely controlled...

Effects of Grand-Cycle Cessation on the Diagenesis of Upper Cambrian Carbonate Deposits in the Southern Appalachians, U.S.A.

Bosiljka Glumac, Kenneth R. Walker

Journal of Sedimentary Research (SEPM)

... burial (Fig. 7A, B). During these diagenetic modifications the 13C values of the fibrous-to-bladed calcite was buffered to the carbon isotope composition...

The controls on the composition of biodegraded oils in the deep subsurface: Part IIGeological controls on subsurface biodegradation fluxes and constraints on reservoir-fluid property prediction1

Steve Larter, Haiping Huang, Jennifer Adams, Barry Bennett, Olufemi Jokanola, Thomas Oldenburg, Martin Jones, Ian Head, Cindy Riediger, Martin Fowler

AAPG Bulletin

... at the present day, the net degradation fluxes are much less than maximum values. Nutrient supply from the aquifer and adjacent shales, mostly buffered...

Dolomite and dolomitization of the Permian Khuff-C reservoir in Ghawar field, Saudi Arabia

Mohammed A. Alqattan, and David A. Budd

AAPG Bulletin

... isotopic values of dolomites tend to be water-buffered (Budd, 1997), thus reflective of the oxygen isotopic composition of the parent fluid...

Carbonate cementation patterns, potential mass transfer, and implications for reservoir heterogeneity in Eocene tight-oil sandstones, Dongying depression, Bohai Bay Basin, China: Evidence from petrology, geochemistry, and numerical modeling

Benben Ma, Yingchang Cao, Kenneth A. Eriksson, and Yanzhong Wang

AAPG Bulletin

... results in a decrease in Fe2+ in solution (Figures 9F; 10). The K+ concentration is mainly buffered by precipitation and dissolution of K-bearing...

A natural analogue for carbon capture and storage: Petrographic and geochemical changes in sandstone after CO2 emplacement in the Yinggehai Basin, South China Sea

Lei Yu, Sanzhong Li, Keqiang Wu, Yanyan Zhao, Li Liu, Na Liu, and Kun Pang

AAPG Bulletin

...), the logarithm of the Na+ and H+ activity ratio (aNa+/aH+) in calcite-buffered formation water has a linear relationship with log(fCO2). The log(aNa+/aH...

On Using Carbon and Oxygen Isotope Data from Glendonites as Paleoenvironmental Proxies: A Case Study from the Permian System of Eastern Australia

Tracy D. Frank, Stephanie G. Thomas, Christopher R. Fielding

Journal of Sedimentary Research (SEPM)

... is interpreted to reflect contributions from seawater DIC, dissolving skeletal carbonate, or alteration by rock-buffered, late stage fluids. Lower δ13C...

CO2–Mineral Reaction in a Natural Analogue for CO2 Storage—Implications for Modeling

Mark Wilkinson, R. Stuart Haszeldine, Anthony E. Fallick, Nicolas Odling, Susan J. Stoker, Robert W. Gatliff

Journal of Sedimentary Research (SEPM)

... changes of porefluid pH which were buffered by the dissolution of carbonate minerals (Kharaka et al. 2006). Examination of the surfaces of authigenic...