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公开(公告)号：US12071586B2
公开(公告)日：2024-08-27
申请号：US16804562
申请日：2020-02-28
发明人： Edward Corrin , Michael Gurecki , Michael Harless
CPC分类号： C09K8/532 , C09K8/582 , C12N1/20 , E21B43/26 , C09K2208/20 , C12N2500/10 , C12R2001/38
摘要： A process includes growing NRB in a nitrate reducing bacteria media to form a NRB culture and combining the NRB culture with a concentrated nitrate solution to form a NRB composition.
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公开(公告)号：US20240199942A1
公开(公告)日：2024-06-20
申请号：US18285702
申请日：2022-04-05
申请人： LignoSol IP Limited
CPC分类号： C09K8/582 , C09K8/588 , C09K2208/10
摘要： Compositions are provided for hydrocarbon recovery applications. In some embodiments, the composition comprises lignin, in particular technical lignin, and at least one strain of bacteria capable of biosurfactant production and/or a biosurfactant produced by at least one such isolated strain of bacteria. Also provided is a method for recovering hydrocarbon from a subterranean reservoir.
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公开(公告)号：US20240076538A1
公开(公告)日：2024-03-07
申请号：US17901913
申请日：2022-09-02
发明人： Fan ZHANG , Yuehui SHE , Qing FENG , Xiaonan LI , Shengsheng LI
CPC分类号： C09K8/582 , C09K8/72 , C12N1/20 , C12R2001/125
摘要： Disclosed is a method for reducing pressure and increasing injection by continuous operation system of biological acid acidification and nano coating, specifically including composition and preparation method of biological acidizing agent and nano coating agent. The method for reducing pressure and increasing injection by continuous operation system of biological acid acidification and nano coating of the present disclosure is able to effectively dredge the stratum water flow channel, reduce the water flow resistance, and achieve the effect of high-efficiency pressure reduction and injection increase of the water injection well.
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公开(公告)号：US11891567B2
公开(公告)日：2024-02-06
申请号：US17877902
申请日：2022-07-30
发明人： Sean Farmer , Ken Alibek , Tyler Dixon , Karthik N. Karathur
CPC分类号： C09K8/584 , C09K8/582 , E21B43/16 , C09K2208/32
摘要： The subject invention provides compositions comprising solvents and surfactants, as well as their use in improving oil and/or gas production. In some embodiments, the compositions comprise chemical or synthetic solvents and/or surfactants. In other embodiments, the compositions comprise biological components, such as microorganisms and/or their growth by-products. The subject invention can be used to dissolve, disperse and/or emulsify paraffin precipitates and/or deposits; prevent and/or inhibit paraffin deposition; remove rust deposits and prevent corrosion associated therewith; inhibit bacterial growth and/or biofilm formation; and to enhance oil recovery.
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公开(公告)号：US11702582B2
公开(公告)日：2023-07-18
申请号：US17226426
申请日：2021-04-09
申请人： Yangtze University
发明人： Yuehui She , Fan Zhang , Zhi Zhang , Puyong Yao , Fei Li , Hao Dong , Shanshan Sun , Gaoming Yu , Shaojin Yi , Wenda Zhang , Linqi Hu , Yangyang Feng , Anying Zheng , Yang Li
摘要： A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes: Brevibacillus borstelensis-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a Brevibacillus borstelensis-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.
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公开(公告)号：US20230175368A1
公开(公告)日：2023-06-08
申请号：US18097688
申请日：2023-01-17
申请人： 9668241 CANADA INC.
发明人： Casey HUBERT , Milovan FUSTIC
CPC分类号： E21B43/2408 , C09K8/582 , C09K8/592 , E21B43/26
摘要： A method and a system for recovering oil from currently inaccessible oil containing geological units by activating the deep biosphere microbial seed bank. Nutrient and thermal enhancement of microorganisms in oil containing geological units allows for stimulation of inactive and/or dormant microorganisms such that they proliferate and produce gas. The oil viscosity that is decreased by heat, along with the gas pressure produced by activated microbes which allows previously inaccessible oil to flow toward production wells.
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7.发明申请公开(公告)号：US20170335298A1
公开(公告)日：2017-11-23
申请号：US15673065
申请日：2017-08-09
发明人： Kofi Abokitse , Peter C.K. Lau , Stephan Grosse
IPC分类号： C12N9/18 , C12N9/16 , C11D7/50 , C11D3/39 , A23K20/189 , C11D3/386 , C09K8/582 , C07K19/00 , C12N9/96 , C11D3/43
CPC分类号： C12N9/18 , A23K20/189 , C07K19/00 , C07K2319/00 , C07K2319/036 , C07K2319/20 , C09K8/582 , C11D3/38636 , C11D3/38681 , C11D3/39 , C11D3/43 , C11D7/5004 , C12N9/16 , C12N9/96 , C12Y301/01074
摘要： An isolated chimeric recombinant protein has cutinase activity. The protein includes a cutinase catalytic domain and a polymer binding domain operably linked by a proline/threonine-rich linker domain. The proline/threonine-rich linker domain includes at least 50% proline or threonine residues over a stretch of 15 to 55 consecutive amino acids.
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公开(公告)号：US09803130B2
公开(公告)日：2017-10-31
申请号：US14061096
申请日：2013-10-23
CPC分类号： C09K8/582 , C09K8/52 , C09K8/685 , C09K2208/08 , C09K2208/24
摘要： A method of treating a subterranean formation, the method including placing a well treatment fluid comprised of at least an enzyme and a breaker additive in the subterranean formation. Initially, the pH of the well treatment fluid is about 11.5. The breaker additive reduces the pH of the well treatment fluid by at least 1.5 to increase the activity of enzyme and accelerate hydrolysis of a crosslinkable component.
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公开(公告)号：US09650561B2
公开(公告)日：2017-05-16
申请号：US14307024
申请日：2014-06-17
发明人： Alan James Sheehy , Bradley Ray Govreau , Colin Kenneth Hill , Michael Thomas Carroll , Brian W. G. Marcotte
摘要： A method of increasing oil recovery from oil reservoirs includes the step of conducting a series of lab analysis that lead to a specific nutrient formulation followed by or in parallel with a genetic analysis of resident microorganisms in water produced from an oil reservoir to determine if the population of oil interactive microorganisms may be modified to produce a change in oil-water relative permeability of an oil reservoir. The series of analyzes are conducted to determine the contents of a specific nutrient formulation package to optimize changes in the resident microorganisms to enhance oil recovery by changing oil-water relative permeability in the oil reservoir. Next the specific nutrient formulation is applied to stimulate some of the resident microorganisms to interact with oil contained in the reservoir rock formations. The stimulation step is followed by limiting the specific nutrient formulation to alter or modify the physiology and surface characteristics of the targeted microorganisms.
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公开(公告)号：US09499842B2
公开(公告)日：2016-11-22
申请号：US14532086
申请日：2014-11-04
摘要： Methods and compositions are provided wherein microorganisms are used to alter the interface of hydrocarbons and hydrocarbon-coated surfaces to increase oil recovery, for improved bioremediation and/or to benefit pipeline maintenance.
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