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公开(公告)号：US10253245B1
公开(公告)日：2019-04-09
申请号：US15723818
申请日：2017-10-03
发明人： Remi Mahfouz , Aziz Fihri , Enrico Bovero , Abdullah A. Shahrani , Haitham Aljahani , Abdullah S. Al-Ghamdi , Ihsan Taie
摘要： A method of preventing formation of a water and oil emulsion in a downhole formation containing oil, the method comprises preparing a dispersion of water and a plurality of nanoparticles, each nanoparticle in the plurality of nanoparticles having a size of at least 300 nanometers, and injecting the mixture downhole into contact with the oil downhole. Presence of the plurality of nanoparticles prevents formation of an emulsion between the injected water and the oil.
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公开(公告)号：US10227526B2
公开(公告)日：2019-03-12
申请号：US15132632
申请日：2016-04-19
发明人： Sheldon R Chesky
摘要： The present invention relates to compositions of plant oil-based biodegradable crude oil thinning fluids having a performance especially suitable to reducing crude oil viscosity in extraction and retrieval operations.
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43.发明授权公开(公告)号：US10150908B2
公开(公告)日：2018-12-11
申请号：US15033507
申请日：2014-09-30
摘要： A method of depleting a given analyte from a water source is provided. The method is applicable to water used in oil recovery, water used in natural gas recovery, the treatment of water wells, and for water used in hydraulic fluids for fracturing processes, such as water to be used in proppants or fracking fluids. The method involves depleting an analyte from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the analyte with the particle; and removing the analyte-particle complex by applying a magnetic field so as to provide a water source with depleted analyte content. The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil 10 towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.
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公开(公告)号：US10138410B2
公开(公告)日：2018-11-27
申请号：US15033495
申请日：2014-09-30
摘要： A method of depleting an ion from a water source is provided. The method is applicable to water used in oil recovery, water used in natural gas recovery, the treatment of water wells, and for water used in hydraulic fluids for fracturing processes, such as water to be used in proppants or fracking fluids. The method involves depleting an ion from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the ion with the particle; and removing the ion-particle complex by applying a magnetic field so as to provide a water source with depleted ion content. The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.
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公开(公告)号：US20180305604A1
公开(公告)日：2018-10-25
申请号：US15758914
申请日：2016-03-18
CPC分类号： C09K8/58 , C09K8/03 , C09K8/524 , C09K8/532 , C09K2208/22 , E21B43/162
摘要： The present disclosure provides herein formulations comprising an electrolyzed carrier fluid along with at least one organic solvent and or an additive. The formulations are applied to in-situ and ex-situ hydrocarbon sources to recover or improve the hydrocarbon material. The present disclosure also provides devices for producing the formulations and methods for making and using the formulations.
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46.发明授权公开(公告)号：US10100242B2
公开(公告)日：2018-10-16
申请号：US13994155
申请日：2011-11-24
摘要： The present invention relates to a method for enhanced hydrocarbon recovery in an underground reservoir rock comprising injecting an aqueous conditioning solution containing an alkaline agent, wherein the in-situ effects of the injection are determined by means of a flow simulation on a reservoir model discretized in cells, by taking into account the transport of the alkaline agent and without taking into account the transport of species referred to as intermediate species that result from the injection of the principal agent in aqueous solution, the intermediate species concentrations being determined analytically in each cell.
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公开(公告)号：US20180258339A1
公开(公告)日：2018-09-13
申请号：US15963253
申请日：2018-04-26
CPC分类号： C09K8/58 , C09K8/594 , E21B43/164
摘要： Oil recovery processes from carbonate or sandstone reservoirs. With a carbonate reservoir, the reservoir is initially flooded with a fluid such as sea water. Then the same fluid containing a plurality of citric acid-filled microcapsules is injected into the reservoir. These microcapsules are left to incubate in the reservoir, which will then infiltrate the rock formations, degrade by heat and release the encapsulated citric acid. The released citric acid reacts with the carbonate rocks to produce CO2 in situ, which causes oil trapped in the rock formations to swell, reduce in viscosity and move towards to a nearby production well. For a sandstone reservoir, calcium carbonate can be also encapsulated with the citric acid for CO2 generation at the reservoir.
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公开(公告)号：US10011757B2
公开(公告)日：2018-07-03
申请号：US15647922
申请日：2017-07-12
申请人： Chevron U.S.A. Inc.
发明人： Varadarajan Dwarakanath , Robert Matthew Dean , Will S. Slaughter , Dustin Luke Walker , Sophany Thach
摘要： Aspects of the invention relate to compositions and methods that are used for the remediation of near-wellbore damage in regions of formations near injection wells in communication with subterranean reservoirs. The damage is caused by previous injection of a polymer emulsion into the injection well. A specific aspect is a method of injecting into the subterranean reservoir a composition containing an olefin sulfonate, a sulfosuccinate, and a chemical selected from an alcohol alkoxylated sulfate, an alcohol alkoxylated carboxylate, or a combination thereof. The polymer emulsion is thereby dissolved, cleaned and/or flushed away from the region near the injection well.
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公开(公告)号：US10000687B2
公开(公告)日：2018-06-19
申请号：US15209597
申请日：2016-07-13
发明人： Ali Al-Yousef , Subhash Ayirala
CPC分类号： C09K8/58 , C09K8/584 , C09K8/80 , G01N33/2823
摘要： Methods, compositions, and techniques for enhancing the production of hydrocarbons such as crude oil from subterranean hydrocarbon bearing formations are disclosed. In some embodiments, the invention relates to processes for evaluating enhanced oil recovery mechanisms in carbonate based reservoirs at both the rock-fluid and oil-water interfaces using spectroscopic and interfacial techniques. In further embodiments, the spectroscopic and interfacial techniques include microscopic, rheometric and tensiometric measurements. In preferred embodiments, the disclosed methods and techniques provide reservoir based details at that allow for optimized “smart water” flooding practices and correspondingly higher oil recovery rates.
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50.发明申请公开(公告)号：US20180163118A1
公开(公告)日：2018-06-14
申请号：US15838464
申请日：2017-12-12
申请人： Lonza Ltd.
发明人： Kevin Janak , Steven Colby
CPC分类号： C09K8/38 , C07F7/0834 , C09K8/035 , C09K8/58 , C09K8/594 , C09K8/703 , C09K8/86 , C09K8/94 , C09K2208/20 , C09K2208/22 , C09K2208/28 , C09K2208/32 , E21B43/122 , E21B43/16 , E21B43/34
摘要： A composition containing a quaternary organosilane foaming agent capable of foaming various liquids in order to remove the liquids from subterranean wells is described. For instance, the composition can be used to remove hydrocarbon condensate liquids from a gas well or an oil well. Of particular advantage, the composition can foam liquids containing substantial amounts of hydrocarbons.
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