Quantitative mineralogy for facies definition in the Marcellus Shale (Appalachian Basin, USA) using XRD-XRF integration

Hupp, Brittany N.; Donovan, Joseph J.

doi:10.1016/j.sedgeo.2018.04.007

Cited by 50 publications

(20 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The setup are EDS signals of iron (red), sulfur (blue) and overlap of iron and sulfur signals, likely pyrite (purple). Mineralogy results from this and other published studies for UPP, 25 Bakken, 26 Eagle Ford 27 and Marcellus shale formations 28 are shown in Figure 3 with data provided in Table S1.…”

Section: Methodsmentioning

confidence: 73%

“…Compared to other wellstudied unconventional formations, the Point Pleasant shale generally has a higher carbonate content, higher concentrations of calcium, iron and strontium, and lower concentrations of barium in the produced water. 13,[25][26][27][28][29][30] Additionally, the reservoir depths, pressures and temperatures will differ in comparison to other formations, such as the Bakken with depths between 8,500 and 11,500 ft. (2,931 [31][32][33] On the western side of the UPP play, the depth and thermal maturity of the Point Pleasant shale is such that rich oil deposits are found, forming the UPP Oil Window (OW). A study by Patchen et al…”

mentioning

confidence: 99%

See 1 more Smart Citation

Geochemical phenomena between Utica‐Point Pleasant shale and hydraulic fracturing fluid

2019

View full text Add to dashboard Cite

This study evaluated geochemistry between the Utica-Point Pleasant shale and reservoir/hydraulic fracturing fluid mixtures under simulated reservoir conditions in a batch reactor system. Analytical techniques were utilized to monitor fluid composition with time along with pre-and post-trial shale microscopy and phase identification analyses. Formation of iron-based precipitate was evident through results from fluid and material analyses. Ferrous iron was the predominant iron form found in the aqueous phase, with oxidation to ferric iron and subsequent precipitate formation. Geochemical modeling further supported ferric iron was the favorable phase for precipitation. K E Y W O R D S crystallization (precipitation), geochemical, hydraulic fracturing, oil shale/tar sands, reaction kinetics 1 | INTRODUCTION U.S. tight oil has had a tremendous impact on stabilizing global oil prices and increasing energy security. Such light crude is recovered from low permeability rock formations, primarily shale, using unconventional methods such as horizontal drilling with hydraulic fracturing. As of March 2019, the Energy Information Association (EIA) reports approximately 60% total U.S. oil production comes from tight oil. 1 While unconventional wells have shown promise in terms of oil production, economic viability is still uncertain due to rapid production decline leading to shorter well life. Peak performance of an unconventional oil well occurs during the first quarter of production, with up to 74% production decline after 1 year. 2 Solutions explored to counteract production decline include refracturing or other enhanced oil recovery methods. Simulation studies have been developed to evaluate the effects of stimulation techniques on production to determine if profitable recovery is feasible. 3-5 Although simulation of refracturing and enhanced oil recovery methods have shown promise, these techniques do not fully account for phenomena encountered in unconventional wells. Various approaches have been utilized to mimic downhole phenomena. 6-8 An approach by Luo evaluated confinement effects on hydrocarbon bubble point. This study found octane and decane confined in nanoporous media possess two distinct bubble point temperatures, with lower/higher bubble point temperatures differing ±15 K in comparison to respective bulk properties. 6 By understanding various in-situ well phenomena, proper recovery analysis can be performed and modifications to hydraulic fracturing processes can be developed to increase well productivity and lifetime. 9 Aqueous phase chemical reactions are another key phenomenon occurring in shale reservoirs. Such reactions occur during well completion, when hydraulic fracturing fluid (HFF) mixes with rock and formation water, potentially causing precipitate formation, more commonly referred to as scale. Scales form when dissolved solid concentrations This contribution was identified by Rameshwar Srivastava (Department of Energy) as the Best Presentation in the session "New Technologies to Enhance the Productio...

show abstract

Section: Methodsmentioning

confidence: 73%

mentioning

confidence: 99%

Geochemical phenomena between Utica‐Point Pleasant shale and hydraulic fracturing fluid

2019

View full text Add to dashboard Cite

show abstract

“…Because the strongest peak was small, other weaker peaks were not visible [see for exampleFig. 5Ain(Hupp and Donovan, 2018)]. As expected, ethylene glycolation shifted all nontronite peaks to smaller 2-theta (larger d spacings), but the talc and albite peaks remained at the same positions.…”

mentioning

confidence: 64%

Reduction of structural Fe(III) in nontronite by humic substances in the absence and presence of Shewanella putrefaciens and accompanying secondary mineralization

Zuo

Huang

Chu

et al. 2021

American Mineralogist

View full text Add to dashboard Cite

Always consult and cite the final, published document. See http:/www.minsocam.org or GeoscienceWorld complexation capacity. A unique set of secondary minerals, including talc, illite, silica, albite, ilmenite, and ferrihydrite formed as a result of reduction. The results highlight the importance of coupled C and Fe biogeochemical transformations and have implications for nutrient cycling and contaminant migration in the environment.

show abstract

“…Therefore, the EBI uses the dynamic elastic properties such as Figure 2. Ternary diagram showing the average mineral content for the following formations: Niobrara Formation [40], Eagle Ford Shale [27], Marcellus Formation [41], middle Bakken Formation [42], Woodford/ Chattanooga Shale [25], Wolfcamp Formation [20,21], and Barnett Formation [12].…”

Section: Methodsmentioning

confidence: 99%

A Review of Brittleness Index Correlations for Unconventional Tight and Ultra-Tight Reservoirs

2019

View full text Add to dashboard Cite

Rock brittleness is pivotal in the development of the unconventional reservoirs. However, the existence of various methods of calculating the brittleness index (BI) such as the mineral-based brittleness index (MBI), the log-based brittleness index (LBI), and the elastic-based brittleness index (EBI) lead to inconclusive estimations of the brittleness index. Hence, in this work, the existing correlations are applied on prolific unconventional plays in the U.S. such as the Marcellus, Bakken, Niobrara, and Chattanooga Formation to examine the various BI methods. A detailed comparison between the MBI, LBI, and EBI has also been conducted. The results show that a universal correlation cannot be derived in order to define brittleness since it is a function of lithology. Correlation parameters vary significantly from one shale play to another. Nevertheless, an overall trend shows that abundant quartz and carbonates content yield high brittleness values, while the high clay content and porosity lower the rock brittleness.

show abstract

Quantitative mineralogy for facies definition in the Marcellus Shale (Appalachian Basin, USA) using XRD-XRF integration

Cited by 50 publications

References 27 publications

Geochemical phenomena between Utica‐Point Pleasant shale and hydraulic fracturing fluid

Geochemical phenomena between Utica‐Point Pleasant shale and hydraulic fracturing fluid

Reduction of structural Fe(III) in nontronite by humic substances in the absence and presence of Shewanella putrefaciens and accompanying secondary mineralization

A Review of Brittleness Index Correlations for Unconventional Tight and Ultra-Tight Reservoirs

Contact Info

Product

Resources

About