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Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs./
作者:	Zhang, Rixing.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	104 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-11, Section: B.
Contained By:	Dissertations Abstracts International83-11B.
標題:	Petroleum engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29241702
ISBN:	9798438744702

Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs.
Zhang, Rixing.

Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 104 p.

Source: Dissertations Abstracts International, Volume: 83-11, Section: B.

Thesis (Ph.D.)--Texas A&M University, 2021.

This item must not be sold to any third party vendors.

Among the additives in slickwater fracturing, only friction reducers (FRs) are heavy molecular polymers, many of which are polyacrylamide-based. Although they are useful for their intended purpose, FRs rapidly decrease the production rate in shale by damaging the formation. Molecular dynamics simulation was used to evaluate how salts potentially encountered during fracturing treatments affect polyacrylamide-based FRs. This work focuses on evaluating the efficacy of a new, less-damaging FR using various methods such as core flood, UV-VIS, and precipitation tests. A field trial was also conducted, and the results show that this less-damaging FR can better mitigate formation damage compared with conventional FRs. Although production decline still occurs in a treated well, it is slower than that of a control well treated with a conventional FR. The radius of gyration results from molecular dynamics simulations show the salt-tolerant patterns of PAM and HPAM follow a trend in which trivalent ions affect polymers more than bivalent ones, and monovalent ions affect the polymers the least. This result is consistent with results reported in the literature. This research predicts that the polymer chains in a less-damaging FR should be in the medium to short-range, the polymer concentration should be much lower, and nanoparticle fillers are necessary. The turbidities of the less-damaging FR solutions are almost ten times lower than those of HPAM. In addition, this new FR has only a negligible reaction with selected salts. Core flood test results indicate that the permeability lost via conventional FR is 92.6% to 99.8%. In contrast, the permeability damage via the less-damaging FR is 0.8%. In the field test, two wells on the same platform were treated with two different FRs. After three months of production, a comparative decline of gas production rate in measurable formation damaged by the less-damaging FR (10% reduction of initiated production rate) and a conventional inverse emulsion FR (30% reduction of daily gas production) was observed.

ISBN: 9798438744702Subjects--Topical Terms:

566616
Petroleum engineering.
Subjects--Index Terms:

Slickwater

Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs.
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245 1 0 $a Integrated Multiscale, Numerical, Experimental, and Field Investigation of a Less Damaging Friction Reducer to Mitigate Formation Damage in Unconventional Shale Reservoirs.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 104 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-11, Section: B.
500 $a Advisor: Morita, Nobuo.
502 $a Thesis (Ph.D.)--Texas A&M University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Among the additives in slickwater fracturing, only friction reducers (FRs) are heavy molecular polymers, many of which are polyacrylamide-based. Although they are useful for their intended purpose, FRs rapidly decrease the production rate in shale by damaging the formation. Molecular dynamics simulation was used to evaluate how salts potentially encountered during fracturing treatments affect polyacrylamide-based FRs. This work focuses on evaluating the efficacy of a new, less-damaging FR using various methods such as core flood, UV-VIS, and precipitation tests. A field trial was also conducted, and the results show that this less-damaging FR can better mitigate formation damage compared with conventional FRs. Although production decline still occurs in a treated well, it is slower than that of a control well treated with a conventional FR. The radius of gyration results from molecular dynamics simulations show the salt-tolerant patterns of PAM and HPAM follow a trend in which trivalent ions affect polymers more than bivalent ones, and monovalent ions affect the polymers the least. This result is consistent with results reported in the literature. This research predicts that the polymer chains in a less-damaging FR should be in the medium to short-range, the polymer concentration should be much lower, and nanoparticle fillers are necessary. The turbidities of the less-damaging FR solutions are almost ten times lower than those of HPAM. In addition, this new FR has only a negligible reaction with selected salts. Core flood test results indicate that the permeability lost via conventional FR is 92.6% to 99.8%. In contrast, the permeability damage via the less-damaging FR is 0.8%. In the field test, two wells on the same platform were treated with two different FRs. After three months of production, a comparative decline of gas production rate in measurable formation damaged by the less-damaging FR (10% reduction of initiated production rate) and a conventional inverse emulsion FR (30% reduction of daily gas production) was observed.
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650 4 $a Molecular physics. $3 3174737
650 4 $a Physical chemistry. $3 1981412
650 4 $a Polymer chemistry. $3 3173488
650 4 $a Analytical chemistry. $3 3168300
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653 $a Molecular dynamics simulation
653 $a Formation damage
653 $a HPAM
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690 $a 0495
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793 $a English
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