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Title: Mineral Reactions in Shale Gas Reservoirs: Barite Scale Formation from Reusing Produced Water As Hydraulic Fracturing Fluid

Abstract

Hydraulic fracturing for gas production is now ubiquitous in shale plays, but relatively little is known about shale-hydraulic fracturing fluid (HFF) reactions within the reservoir. To investigate reactions during the shut-in period of hydraulic fracturing, experiments were conducted flowing different HFFs through fractured Marcellus shale cores at reservoir temperature and pressure (66 °C, 20 MPa) for one week. Results indicate HFFs with hydrochloric acid cause substantial dissolution of carbonate minerals, as expected, increasing effective fracture volume (fracture volume + nearfracture matrix porosity) by 56-65%. HFFs with reused produced water composition cause precipitation of secondary minerals, particularly barite, decreasing effective fracture volume by 1-3%. Barite precipitation occurs despite the presence of antiscalants in experiments with and without shale contact and is driven in part by addition of dissolved sulfate from the decomposition of persulfate breakers in HFF at reservoir conditions. The overall effect of mineral changes on the reservoir has yet to be quantified, but the significant amount of barite scale formed by HFFs with reused produced water composition could reduce effective fracture volume. In conclusion, further study is required to extrapolate experimental results to reservoir-scale and to explore the effect that mineral changes from HFF interaction with shale might havemore » on gas production.« less

Authors:
ORCiD logo [1];  [2];  [3];  [3]
  1. California State Univ. Sacramento, Sacramento, CA (United States); National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
  2. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
  3. National Energy Technology Lab. (NETL), Morgantown, WV (United States); AECOM, Morgantown, WV (United States)
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States); National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1471386
Alternate Identifier(s):
OSTI ID: 1480845
Report Number(s):
NETL-PUB-20921
Journal ID: ISSN 0013-936X
Resource Type:
Accepted Manuscript
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 51; Journal Issue: 16; Journal ID: ISSN 0013-936X
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; Marcellus Shale; hydraulic fracturing; calcite; barite

Citation Formats

Paukert Vankeuren, Amelia N., Hakala, J. Alexandra, Jarvis, Karl, and Moore, Johnathan E.. Mineral Reactions in Shale Gas Reservoirs: Barite Scale Formation from Reusing Produced Water As Hydraulic Fracturing Fluid. United States: N. p., 2017. Web. https://doi.org/10.1021/acs.est.7b01979.
Paukert Vankeuren, Amelia N., Hakala, J. Alexandra, Jarvis, Karl, & Moore, Johnathan E.. Mineral Reactions in Shale Gas Reservoirs: Barite Scale Formation from Reusing Produced Water As Hydraulic Fracturing Fluid. United States. https://doi.org/10.1021/acs.est.7b01979
Paukert Vankeuren, Amelia N., Hakala, J. Alexandra, Jarvis, Karl, and Moore, Johnathan E.. Wed . "Mineral Reactions in Shale Gas Reservoirs: Barite Scale Formation from Reusing Produced Water As Hydraulic Fracturing Fluid". United States. https://doi.org/10.1021/acs.est.7b01979. https://www.osti.gov/servlets/purl/1471386.
@article{osti_1471386,
title = {Mineral Reactions in Shale Gas Reservoirs: Barite Scale Formation from Reusing Produced Water As Hydraulic Fracturing Fluid},
author = {Paukert Vankeuren, Amelia N. and Hakala, J. Alexandra and Jarvis, Karl and Moore, Johnathan E.},
abstractNote = {Hydraulic fracturing for gas production is now ubiquitous in shale plays, but relatively little is known about shale-hydraulic fracturing fluid (HFF) reactions within the reservoir. To investigate reactions during the shut-in period of hydraulic fracturing, experiments were conducted flowing different HFFs through fractured Marcellus shale cores at reservoir temperature and pressure (66 °C, 20 MPa) for one week. Results indicate HFFs with hydrochloric acid cause substantial dissolution of carbonate minerals, as expected, increasing effective fracture volume (fracture volume + nearfracture matrix porosity) by 56-65%. HFFs with reused produced water composition cause precipitation of secondary minerals, particularly barite, decreasing effective fracture volume by 1-3%. Barite precipitation occurs despite the presence of antiscalants in experiments with and without shale contact and is driven in part by addition of dissolved sulfate from the decomposition of persulfate breakers in HFF at reservoir conditions. The overall effect of mineral changes on the reservoir has yet to be quantified, but the significant amount of barite scale formed by HFFs with reused produced water composition could reduce effective fracture volume. In conclusion, further study is required to extrapolate experimental results to reservoir-scale and to explore the effect that mineral changes from HFF interaction with shale might have on gas production.},
doi = {10.1021/acs.est.7b01979},
journal = {Environmental Science and Technology},
number = 16,
volume = 51,
place = {United States},
year = {2017},
month = {7}
}

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    Geochemical conditions conducive for retention of trace elements and radionuclides during shale–fluid interactions
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    • Environmental Science: Processes & Impacts, Vol. 21, Issue 10
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    Effect of maturity and mineralogy on fluid-rock reactions in the Marcellus Shale
    journal, January 2019

    • Pilewski, John; Sharma, Shikha; Agrawal, Vikas
    • Environmental Science: Processes & Impacts, Vol. 21, Issue 5
    • DOI: 10.1039/c8em00452h

    Effect of Shale Anisotropy on Hydration and Its Implications for Water Uptake
    journal, November 2019


    Organic sulfur fingerprint indicates continued injection fluid signature 10 months after hydraulic fracturing
    journal, January 2019

    • Luek, Jenna L.; Harir, Mourad; Schmitt-Kopplin, Philippe
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    Combination of MRI and SEM to Assess Changes in the Chemical Properties and Permeability of Porous Media due to Barite Precipitation
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    Geochemical phenomena between Utica‐Point Pleasant shale and hydraulic fracturing fluid
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    • Spencer, Michael; Garlapalli, Ravinder; Trembly, Jason P.
    • AIChE Journal, Vol. 66, Issue 4
    • DOI: 10.1002/aic.16887

    Raw material recovery from hydraulic fracturing residual solid waste with implications for sustainability and radioactive waste disposal
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    • Ajemigbitse, Moses A.; Cannon, Fred S.; Klima, Mark S.
    • Environmental Science: Processes & Impacts, Vol. 21, Issue 2
    • DOI: 10.1039/c8em00248g