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1. 发明授权

US09725640B2 Submicron particles surfactant method for improved oil recovery from subterranean reservoirs 有权
公开(公告)号：US09725640B2
公开(公告)日：2017-08-08
申请号：US13986229
申请日：2013-04-12
申请人： Hongxin Tang , Zayne Hai Lu
发明人： Hongxin Tang , Zayne Hai Lu
IPC分类号： C09K8/70 , C09K8/584 , C09K8/60
CPC分类号： C09K8/70 , C09K8/584 , C09K8/602 , C09K2208/10
摘要： Methods of stimulating a well comprising providing a stimulation fluid comprising at least one surfactant and submicron particles, the submicron particles having a particle size between about 200 nm and about 800 nm and a specific surface area greater than about 5 square meters per gram; and introducing the stimulation fluid into a wellbore. Additional methods to enhance oil recovery from subterranean reservoirs accessible via a well are described.

2. 发明授权

US12043794B2 Oil and gas field corrosion inhibitor compositions 有权
公开(公告)号：US12043794B2
公开(公告)日：2024-07-23
申请号：US17271116
申请日：2019-08-27
申请人： KAO CORPORATION , CHEMEOR, INC.
发明人： Fei Meng , Mitsuru Uno , Yongchun Tang
IPC分类号： C09K8/54 , C09K15/18 , C09K15/26 , C23F11/14 , C23F11/16
CPC分类号： C09K8/54 , C09K15/18 , C09K15/26 , C23F11/141 , C23F11/149 , C23F11/165 , C09K2208/32
摘要： A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.

3. 发明申请

US20210317359A1 CORROSION INHIBITOR COMPOSITIONS AND METHODS OF USE IN ACID STIMULATION OPERATIONS 有权
公开(公告)号：US20210317359A1
公开(公告)日：2021-10-14
申请号：US17271396
申请日：2019-08-21
申请人： Kao Corporation , CHEMEOR, INC.
发明人： Fei MENG , Mitsuru UNO , Yongchun TANG , Lucino GONZÁLEZ RAMEÑO
IPC分类号： C09K8/54 , C09K8/60 , C09K8/74 , C23F11/04 , C23F11/12 , C23F11/14
摘要： A corrosion inhibitor composition, containing (a) a cinnamaldehyde compound, (b) an alkoxylated fatty amine, and (c) an imidazoline compound, and optionally (d) a surfactant, and (e) a solvent. A method of inhibiting corrosion of metal in contact with an acidic medium in an oil or gas field environment by introducing the corrosion inhibitor composition into the acidic medium, such as during acid stimulation operations.

4. 发明申请

US20210253938A1 OIL AND GAS FIELD CORROSION INHIBITOR COMPOSITIONS 有权
公开(公告)号：US20210253938A1
公开(公告)日：2021-08-19
申请号：US17271116
申请日：2019-08-27
申请人： KAO CORPORATION , CHEMEOR, INC.
发明人： Fei MENG , Mitsuru UNO , Yongchun TANG
IPC分类号： C09K8/54 , C09K15/18 , C09K15/26 , C23F11/14 , C23F11/16
摘要： A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.

5. 发明授权

US07581594B2 Surfactant method for improved oil recovery from fractured reservoirs 失效
$Surfactant method for improved oil recovery from fractured reservoirs$
标题翻译：用于改善断层油藏采收率的表面活性剂方法
公开(公告)号：US07581594B2
公开(公告)日：2009-09-01
申请号：US11724104
申请日：2007-03-14
申请人： Hongxin Tang
发明人： Hongxin Tang
IPC分类号： E21B43/22 , E21B43/26 , E21B43/27
CPC分类号： C09K8/602 , C09K8/584 , C09K8/74
摘要： A method to enhance oil recovery from a fractured carbonate reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution including surfactants into the production well, and injecting a second well treatment process into the production well. The second well treatment process includes a second well treatment solution. The second well treatment solution is selected from the group consisting of a scale inhibition squeeze process, a well acidizing process, a chemical process to reduce water production rate, carbon dioxide injection for stimulation of a production or injection well, an acid fracturing process, and a hydraulic fracturing process. The surfactant solution and the second well treatment solution are injected into the production well within less than about six months from one another.
摘要翻译：一种提高从裂缝碳酸盐岩储层获得石油的方法，储层可通过生产井进入。该方法包括将包括表面活性剂的表面活性剂溶液注入到生产井中，并将第二井处理过程注入生产井。第二井处理方法包括第二井处理溶液。第二井处理溶液选自阻垢挤压法，井酸化法，减少产水率的化学方法，用于刺激生产或注入井的二氧化碳注入，酸压裂过程和水力压裂工艺。将表面活性剂溶液和第二孔处理溶液从彼此不到约六个月内注入生产井。

6. 发明授权

US11542427B2 Corrosion inhibitor compositions and methods of use in acid stimulation operations 有权
公开(公告)号：US11542427B2
公开(公告)日：2023-01-03
申请号：US17271396
申请日：2019-08-21
申请人： CHEMEOR, INC.
发明人： Fei Meng , Mitsuru Uno , Yongchun Tang , Lucino González Rameño
IPC分类号： C09K8/54 , C09K8/60 , C09K8/74 , C23F11/04 , C23F11/12 , C23F11/14
摘要： A corrosion inhibitor composition, containing (a) a cinnamaldehyde compound, (b) an alkoxylated fatty amine, and (c) an imidazoline compound, and optionally (d) a surfactant, and (e) a solvent. A method of inhibiting corrosion of metal in contact with an acidic medium in an oil or gas field environment by introducing the corrosion inhibitor composition into the acidic medium, such as during acid stimulation operations.

7. 发明授权

US10442985B2 Easily dispersible polymer powder for hydrocarbon extraction 有权
公开(公告)号：US10442985B2
公开(公告)日：2019-10-15
申请号：US15625958
申请日：2017-06-16
申请人： ChemEOR, Inc.
发明人： Yongchun Tang , Allen Thomas Lyssy , Yaser Asgari , Carl Wilhelm Aften , Hongxin Tang
IPC分类号： C09K8/68 , C09K8/88 , C09K8/588 , C09K8/90 , C09K8/50 , C09K8/528
摘要： A dry polymer powder for use in enhanced petroleum recovery without being prehydrated before being added to water or brine to be introduced into a wellhead. The dry polymer powder consisting of at least one of a polyacrylamide, a copolymer of acrylamide and acrylic acid, a functionalized derivatives thereof, a galactomannan, or cellulosic polymer or derivatives thereof, and the polymer can be crosslinked or not crosslinked, provided that if they are homo- or co-polymers of acrylic acid, they are not crosslinked. The dry polymer powder is sized between two size limits, namely at least about 85 wt % of particles of a size smaller than about 40-mesh, and at least 75 wt % of particles of a size greater than 200-mesh, which size range ensures that the dry polymer powder will efficiently hydrate in the water or brine within about one minute without forming fisheyes.

8. 发明授权

US11060016B2 Easily dispersible polymer powder for hydrocarbon extraction 有权
公开(公告)号：US11060016B2
公开(公告)日：2021-07-13
申请号：US16542034
申请日：2019-08-15
申请人： ChemEOR, Inc.
发明人： Yongchun Tang , Allen Thomas Lyssy , Yaser Asgari , Carl W. Aften , Hongxin Tang
IPC分类号： C09K8/68 , C09K8/90 , C09K8/588 , C09K8/88 , C09K8/528 , C09K8/50
摘要： A dry polymer powder for use in enhanced petroleum recovery without being prehydrated before being added to water or brine to be introduced into a wellhead. The dry polymer powder consisting of at least one of a polyacrylamide, a copolymer of acrylamide and acrylic acid, a galactomannan, or cellulosic polymer or derivatives thereof, and the polymer can be crosslinked or not crosslinked, provided that if they are homo- or co-polymers of acrylic acid, they are not crosslinked. The dry polymer powder has a polymer size range distribution of 6.6% 200 mesh, and wherein the polymer size range ensures that the dry polymer powder will efficiently hydrate in the water or brine within about one minute without forming fisheyes.

9. 发明授权

US08146666B2 Surfactant method for improved oil recovery from subterranean reservoirs 有权
标题翻译：改善从地下水库采收油的表面活性剂方法
公开(公告)号：US08146666B2
公开(公告)日：2012-04-03
申请号：US12460767
申请日：2009-07-24
申请人： Hongxin Tang
发明人： Hongxin Tang
IPC分类号： E21B43/22 , E21B43/26 , E21B43/27
CPC分类号： C09K8/584 , C09K8/602 , C09K8/68 , C09K8/74
摘要： A method to enhance oil recovery from a subterranean reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution that includes surfactants into the production well. The surfactant solution selected to increase an oil-to-water ratio of oil recovery from a porous matrix portion of the reservoir. The method also includes injecting a well-servicing volumetric solution into the production well to perform a second well treatment process. The second well treatment process is selected from the group consisting of a scale inhibition squeeze process, a well acidizing process, a chemical process to reduce water production rate, an acid fracturing process, and a hydraulic fracturing process. In the method, the surfactant solution and the second well treatment solution are injected into the production well within less than about six months of one another.
摘要翻译：一种提高从地下储层获得油的方法，储层可通过生产井进入。该方法包括将包含表面活性剂的表面活性剂溶液注入生产井。所述表面活性剂溶液被选择以增加从储层的多孔基体部分获得的油的油与水的比例。该方法还包括将井服务体积溶液注入生产井以进行第二井处理过程。第二井处理方法选自防垢挤压法，井酸化法，减少水生产率的化学方法，酸压裂法和水力压裂法。在该方法中，将表面活性剂溶液和第二井处理溶液彼此不到约六个月内注入生产井。

10. 发明申请

US20090288825A1 Surfactant method for improved oil recovery from subterranean reservoirs 有权
标题翻译：改善从地下水库采收油的表面活性剂方法
公开(公告)号：US20090288825A1
公开(公告)日：2009-11-26
申请号：US12460767
申请日：2009-07-24
申请人： Hongxin Tang
发明人： Hongxin Tang
IPC分类号： E21B43/22 , E21B43/26 , E21B37/06 , E21B43/16 , E21B43/00 , C09K8/584
CPC分类号： C09K8/584 , C09K8/602 , C09K8/68 , C09K8/74
摘要： A method to enhance oil recovery from a subterranean reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution that includes surfactants into the production well. The surfactant solution selected to increase an oil-to-water ratio of oil recovery from a porous matrix portion of the reservoir. The method also includes injecting a well-servicing volumetric solution into the production well to perform a second well treatment process. The second well treatment process is selected from the group consisting of a scale inhibition squeeze process, a well acidizing process, a chemical process to reduce water production rate, an acid fracturing process, and a hydraulic fracturing process. In the method, the surfactant solution and the second well treatment solution are injected into the production well within less than about six months of one another.
摘要翻译：一种提高从地下储层获得油的方法，储层可通过生产井进入。该方法包括将包含表面活性剂的表面活性剂溶液注入生产井。所述表面活性剂溶液被选择以增加从储层的多孔基体部分获得的油的油与水的比例。该方法还包括将井服务体积溶液注入生产井以进行第二井处理过程。第二井处理方法选自防垢挤压法，井酸化法，减少水生产率的化学方法，酸压裂法和水力压裂法。在该方法中，将表面活性剂溶液和第二井处理溶液彼此不到约六个月内注入生产井。

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