Patent | Date |
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Acrylate-based sulfur scavenging agents for use in oilfield operations Grant 11,225,604 - Shi , et al. January 18, 2 | 2022-01-18 |
Synergistic sulfide scavenging additives for use in oilfield operations Grant 11,078,403 - Shi , et al. August 3, 2 | 2021-08-03 |
Acrylate-based Sulfur Scavenging Agents For Use In Oilfield Operations App 20200239772 - Shi; Liu ;   et al. | 2020-07-30 |
Compositions, systems, and methods for removing iron sulfide scale from oilfield components Grant 10,668,510 - Peng , et al. | 2020-06-02 |
Synergistic Sulfide Scavenging Additives For Use In Oilfield Operations App 20200115617 - Shi; Liu ;   et al. | 2020-04-16 |
Acrylate-based sulfur scavenging agents for use in oilfield operations Grant 10,597,582 - Shi , et al. | 2020-03-24 |
Cationic multiple quaternary ammonium-based surfactants for enhancing production in subterranean formations Grant 10,590,333 - He , et al. | 2020-03-17 |
Compositions, systems, and methods for removing iron sulfide scale from oilfield components using methyl acrylate Grant 10,584,275 - Peng , et al. | 2020-03-10 |
Synergistic sulfide scavenging additives for use in oilfield operations Grant 10,550,309 - Shi , et al. Fe | 2020-02-04 |
Tagged corrosion inhibitors for use in subterranean operations Grant 10,526,873 - Qu , et al. J | 2020-01-07 |
Multi-tail hydrate inhibitors Grant 10,364,385 - Zhao , et al. | 2019-07-30 |
Multiple hydrophilic head corrosion inhibitors Grant 10,246,628 - Qu , et al. | 2019-04-02 |
Synergistic Sulfide Scavenging Additives For Use In Oilfield Operations App 20180346794 - Shi; Liu ;   et al. | 2018-12-06 |
Multi-tail Hydrate Inhibitors App 20180334610 - Zhao; Funian ;   et al. | 2018-11-22 |
Cationic surfactants for scale inhibitor squeeze applications Grant 10,106,721 - Yue , et al. October 23, 2 | 2018-10-23 |
Multi-tail hydrate inhibitors Grant 10,059,871 - Zhao , et al. August 28, 2 | 2018-08-28 |
Compositions, Systems, And Methods For Removing Iron Sulfide Scale From Oilfield Components App 20180169714 - Peng; Yang ;   et al. | 2018-06-21 |
Compositions, systems, and methods for removing iron sulfide scale from oilfield components Grant 9,919,348 - Peng , et al. March 20, 2 | 2018-03-20 |
Compositions, Systems, And Methods For Removing Iron Sulfide Scale From Oilfield Components Using Methyl Acrylate App 20180072940 - Peng; Yang ;   et al. | 2018-03-15 |
Multiple hydrophilic head hydrate inhibitors Grant 9,902,893 - Qu , et al. February 27, 2 | 2018-02-27 |
Acrylonitrile-based sulfur scavenging agents and methods of use in oilfield operations Grant 9,896,616 - Shi , et al. February 20, 2 | 2018-02-20 |
Multiple Hydrophilic Head Hydrate Inhibitors App 20180010036 - Qu; Liangwei ;   et al. | 2018-01-11 |
Cationic Surfactants For Scale Inhibitor Squeeze Applications App 20170342309 - Yue; Zhiwei ;   et al. | 2017-11-30 |
Acrylate-based Sulfur Scavenging Agents For Use In Oilfield Operations App 20170335188 - Shi; Liu ;   et al. | 2017-11-23 |
Cationic Multiple Quaternary Ammonium-based Surfactants For Enhancing Production In Subterranean Formations App 20170327732 - He; Kai ;   et al. | 2017-11-16 |
Multiple hydrophilic head hydrate inhibitors Grant 9,796,906 - Qu , et al. October 24, 2 | 2017-10-24 |
Multi-tail Hydrate Inhibitors App 20170226403 - Zhao; Funian ;   et al. | 2017-08-10 |
Multiple Hydrophilic Head Corrosion Inhibitors App 20170190952 - Qu; Liangwei ;   et al. | 2017-07-06 |
Multi-tail hydrate inhibitors Grant 9,676,991 - Zhao , et al. June 13, 2 | 2017-06-13 |
Tagged Corrosion Inhibitors For Use In Subterranean Operations App 20170122078 - QU; Liangwei ;   et al. | 2017-05-04 |
Multiple hydrophilic head corrosion inhibitors Grant 9,637,679 - Qu , et al. May 2, 2 | 2017-05-02 |
Compositions, Systems, And Methods For Removing Iron Sulfide Scale From Oilfield Components App 20170101574 - Peng; Yang ;   et al. | 2017-04-13 |
Emulsion breakers including polyester functionalities Grant 9,587,155 - Qu , et al. March 7, 2 | 2017-03-07 |
Acrylonitrile-based Sulfur Scavenging Agents For Use In Oilfield Operations App 20160355724 - Shi; Liu ;   et al. | 2016-12-08 |
Multiple Hydrophilic Head Hydrate Inhibitors App 20160264843 - Qu; Liangwei ;   et al. | 2016-09-15 |
Multiple Hydrophilic Head Corrosion Inhibitors App 20160215198 - Qu; Liangwei ;   et al. | 2016-07-28 |
Tagged Paraffin Inhibitors And Asphaltene Inhibitors For Use In Subterranean Operations App 20160168952 - QU; LIANGWEI ;   et al. | 2016-06-16 |
Multi-tail Hydrate Inhibitors App 20160102240 - Zhao; Funian ;   et al. | 2016-04-14 |
Emulsion Breakers Including Polyester Functionalities App 20130324446 - Qu; Liangwei ;   et al. | 2013-12-05 |