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dc.contributor.authorKirkland, Catherine M.
dc.contributor.authorThane, Abby
dc.contributor.authorHiebert, Randy
dc.contributor.authorHyatt, Robert
dc.contributor.authorKirksey, Jim
dc.contributor.authorCunningham, Alfred B.
dc.contributor.authorGerlach, Robin
dc.contributor.authorSpangler, Lee
dc.contributor.authorPhilips, Adrienne J.
dc.date.accessioned2022-05-16T22:15:26Z
dc.date.available2022-05-16T22:15:26Z
dc.date.issued2020-02
dc.identifier.citationKirkland, C. M., Thane, A., Hiebert, R., Hyatt, R., Kirksey, J., Cunningham, A. B., ... & Phillips, A. J. (2020). Addressing wellbore integrity and thief zone permeability using microbially-induced calcium carbonate precipitation (MICP): A field demonstration. Journal of Petroleum Science and Engineering, 190, 107060.en_US
dc.identifier.issn0920-4105
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/16791
dc.description.abstractMicrobially-induced calcium carbonate precipitation (MICP) is an emerging biotechnology for wellbore integrity applications including sealing defects in wellbore cement and modifying the permeability of rock formations. The goal of this field demonstration was to characterize a failed waterflood injection well and provide proof of principle that MICP can reduce permeability in the presence of oil using conventional oilfield fluid delivery methods. We compared well logs performed at the time the well was drilled with ultrasonic logs, sonic cement evaluation, and temperature logs conducted after the well failed. Analysis of these logs suggested that, rather than entering the target waterflood formation, injectate was traveling through defects in the well cement to a higher permeability sandstone layer above the target formation. Sporosarcina pasteurii cultures and urea-calcium media were delivered 2290 ft (698 m) below ground surface using a 3.75 gal (14.2 L) slickline dump bailer to promote mineralization in the undesired flow paths. By Day 6 and after 25 inoculum and 49 calcium media injections, the injectivity [gpm/psi] had decreased by approximately 70%. This demonstration shows that 1) common well logs can be used to identify scenarios where MICP can be employed to reduce system permeability, remediate leakage pathways, and improve waterflood efficiency, and 2) MICP can occur in the presence of hydrocarbons.en_US
dc.language.isoen_USen_US
dc.publisherElsevier BVen_US
dc.rights© This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleAddressing wellbore integrity and thief zone permeability using microbially-induced calcium carbonate precipitation (MICP): A field demonstrationen_US
dc.typeArticleen_US
mus.citation.extentfirstpage1en_US
mus.citation.extentlastpage20en_US
mus.citation.journaltitleJournal of Petroleum Science and Engineeringen_US
mus.citation.volume190en_US
mus.identifier.doi10.1016/j.petrol.2020.107060en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentCivil Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.data.thumbpage5en_US


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© This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as © This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

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