Mg/Ca Ratio and Salinity: Two Controls over Crystallization of Dolomite

Robert L. Folk , Lynton S. Land

AAPG Bulletin

... precipitation is governed by both thermodynamic and kinetic considerations. The concentration and ionic composition of natural solutions influence not only...

Obscure Nature of Petroleum Migration and Entrapment

John C. Cartmill

AAPG Bulletin

... convection currents tend to deny this capacity to microemulsions or micellar solutions (no creaming in spite of thermodynamic instability). Although...

Correlation of Natural Gas by Use of Carbon Isotopic Distribution Between Hydrocarbon Components

Alan T. James

AAPG Bulletin

...., and A. A. Ivlev, 1973, Thermodynamic isotope effects in organic compounds; I. carbon isotope effects in straight-chain alkanes: Russian Jour. Phys...

Geopressured Shale and Sealing Effect of Smectite to Illite Transition

Robert L. Freed , Donald R. Peacor

AAPG Bulletin

..., and J. D. C. McConnell, 1986, Thermodynamic and structural aspects of the dehydration of smectites in sedimentary rocks: Clay Minerals, v. 21, p...

Gas Souring by Thermochemical Sulfate Reduction at 140°C

R. H. Worden , P. C. Smalley , N. H. Oxtoby

AAPG Bulletin

... sulfate reduction and generated H2S. (4) The temperature threshold must have a kinetic origin rather than a thermodynamic origin. Methane...

Compaction of Sand and Clay - Constraints from Experimental Compaction, Chemical Reactions and Fluid Flow During Burial - an Overview; #51449 (2017)

Knut Bjørlykke, Line Hedvig Line, Jens Jahren, Nazmul Haque Mondol, Per Aagaard, Helge Hellevang

Search and Discovery.com

... et al., 2010; Fawad et al., 2011) we presented new empirical equations (Eqs. 1-3) for porosity and velocity (both Vp and Vs) prediction as functions...

Pore-water chemistry: A proxy for tracking the signature of ongoing silica diagenesis

Shahab Varkouhi, Nicholas J. Tosca, Joseph A. Cartwright

Journal of Sedimentary Research (SEPM)

... for distinguishing between active opal-CT precipitation and fossil transition zones. Pore-water chemistry, mineralogy, and thermodynamic analyses of the Ocean...

Structure and Function of a Coupled Two-Dimensional Diagenetic and Sedimentological Model of Carbonate Platform Evolution

Fiona Whitaker, Peter Smart, Yvette Hague, David Waltham, Daniel Bosence

Special Publications of SEPM

... or fluid transmission are relatively slow however because of the thermodynamic instability of aragonite and high magnesium calcite the minerals...

Origin of Gulf Coast Salt-Dome Sulphur Deposits

Herbert W. Feely , J. Laurence Kulp

AAPG Bulletin

... the agency of sulphate-reducing bacteria. The feasibility of such reactions, as predicted by thermodynamic functions, is the same whether bacterial...

Use of Clumped-Isotope Thermometry to Constrain the Crystallization Temperature of Diagenetic Calcite

Katharine W. Huntington, David A. Budd, Brian P. Wernicke, John M. Eiler

Journal of Sedimentary Research (SEPM)

... of Petroleum Geologists, Bulletin, v. 71, p. 1445–1466. Urey, H.C., 1947, The thermodynamic properties of isotopic substances: Chemical Society of London...

Reactive Transport Modeling of Brine Reflux: Dolomitization, Anhydrite Precipitation, and Porosity Evolution

Anwar B. Al-Helal, Fiona F. Whitaker, Yitian Xiao

Journal of Sedimentary Research (SEPM)

... of the thermodynamic behavior of aqueous electrolytes at high pressures and temperatures: IV. Calculation of activity coefficients, osmotic coefficients...

Are Fluid Inclusions Representative Samples of Diagenetic Fluids?

Robert H. Goldstein, T. James Reynolds

Special Publications of SEPM

... calculated fluid compositions (as constrained by mineral assemblages and thermodynamic data) and the observed natural fluid compositions (Hall and others...

Travertines Associated With Hyperalkaline Springs: Evaluation As A Proxy For Paleoenvironmental Conditions And Sequestration of Atmospheric CO2

Thomas Leleu, Valerie Chavagnac, Adelie Delacour, Catherine Noiriel, Georges Ceuleneer, Markus Aretz, Celine Rommevaux, Sandra Ventalon

Journal of Sedimentary Research (SEPM)

..., J., 1998, Thermodynamic and mathematical concepts of CHESS: technical report LHM/RD/98/3, Ecole des Mines de Paris, Centre d'Informatique Géologique...

Illitic-Clay Formation During Experimental Diagenesis of Arkoses

Wuu-Liang Huang

Special Publications of SEPM

... run es TABLE 3.-SUMMARY Run Press. Bars Time Days Starting Solutions Salt 85 85 85 85 1000 1000 1000 1000 1000 1000 1OM) 1000 1000 Starting...

Gas Slippage in Tight Rocks With Sub-irreducible Water Saturation

Jing Li, Pin Jia, Keliu Wu, Xiangzeng Wang, Shiyuan Qu, Juntai Shi, Tianhao Jiang, Yifu Dong

Unconventional Resources Technology Conference (URTEC)

... is the evaporation of subsequent irreducible water by thermodynamic equilibrium between vapor and water film. For the conventional gas reservoir...

Hypotheses for an Inorganic Origin: Chapter 2: Part I. Genesis of Petroleum, Compiled by Robert H. Dott

AAPG Special Volumes

...... CH4 is most erratic in occurrence, and a volcanic origin for it is doubtful (Basharina, 1960, p. 21), although thermodynamic considerations...

Pervasive Subsurface Dolomitization of the Nisku Formation in Central Alberta

Hans G. Machel, James H. Anderson

Journal of Sedimentary Research (SEPM)

... approached thermodynamic equilibrium between the bulk fluid(s) and dolomite(s), i.e., that dolomitization took place at or not far from thermodynamic...

Carbonate Speleothems in the Dry, Inneralpine Vinschgau Valley, Northernmost Italy: Witnesses of Changes in Climate and Hydrology Since the Last Glacial Maximum

C. Spotl, M. Unterwurzacher, A. Mangini, F.J. Longstaffe

Journal of Sedimentary Research (SEPM)

... Material was analyzed repeatedly during the run. Thermodynamic parameters including saturation indices were calculated using PHREEQC (version 2.1...

Characterization of Dolomitizing Fluids in the Carboniferous of the Cantabrian Zone (NW Spain): A Fluid-Inclusion Study with Cryo-Raman Spectroscopy

Marta Gasparrini, Ronald J. Bakker, Thilo Bechstadt

Journal of Sedimentary Research (SEPM)

... information about the real composition of the aqueous solution. Therefore, it is an expression of temperature. Thermodynamic models of complex highly saline...

Carbonate Geochemistry of Superior Deep Test Well, Andros Island, Bahamas

H. G. Goodell , R. K. Garman

AAPG Bulletin

... of aragonite in sea water: Thermodynamic influence of strontium: Geochim. et Cosmochim. Acta, v. 31, p. 2445-2448. Harriss, R. C., and O. H. Pilkey, 1966...

Reactive transport modeling of early burial dolomitization of carbonate platforms by geothermal convection

Fiona F. Whitaker, Yitian Xiao

AAPG Bulletin

... precipitation, both calcite and anhydrite are assumed to be thermodynamic minerals (Table 4). Thus, we model calcite dissolution as a thermodynamic process...

Open or closed geochemical systems during diagenesis in sedimentary basins: Constraints on mass transfer during diagenesis and the prediction of porosity in sandstone and carbonate reservoirs

Knut Bjorlykke, Jens Jahren

AAPG Bulletin

... the sediments toward increased mechanical and thermodynamic stability. As a result, the porosity of a single lithology must decrease during progressive burial...

Oil vs. Gas: What are the Limits to Prospect-Level Hydrocarbon Phase Prediction?; #42513 (2020)

Andrew Murray, Zhiyong He

Search and Discovery.com

... separation arises from the fact that many oil pools are not in thermodynamic equilibrium (i.e. not fully mixed). This was discussed by Stainforth (2004...

Geothermal Resources

C. R. B. Lister

Circum Pacific Council Publications

...: the maximum Carnot thermodynamic efficiency (Ti—T )/T , where T is the effective source temperature and T the sink temperature, both measured...

Resin-Based Nanocomposites Coated Proppants as Scale Inhibitor Carrier and Slowly Releasing Container

Ali Aref Ali Alzanam, Ali Samer Muhsan

Unconventional Resources Technology Conference (URTEC)

... layer was sprayed on top. One of the main functions of the first resin layer is to serve as a primer between the proppant surface and the second resin...