-
公开(公告)号：US20240124763A1
公开(公告)日：2024-04-18
申请号：US18472513
申请日：2023-09-22
发明人： Andrew Bryce Conway
IPC分类号： C09K8/60 , C09K8/52 , C09K8/528 , C09K8/62 , E21B43/25 , E21B43/26 , E21B43/267 , E21B43/27 , E21B43/28
CPC分类号： C09K8/605 , C09K8/52 , C09K8/528 , C09K8/602 , C09K8/62 , E21B43/25 , E21B43/26 , E21B43/267 , E21B43/27 , E21B43/28 , C09K8/72
摘要： Formulations and methods for stimulating the production from wells in nano-darcy shale formations. In one embodiment, the method includes injecting a treatment mixture containing a metal complexing agent into a nano-darcy shale formation adjacent to a well at a pressure below the fracture pressure of the formation. A sufficient contact time is allowed and then the treatment mixture is pumped from the subsurface. This has been shown to stimulate well production in shale formations. Without being held to a particular theory it appears that the metal complexing agent is binding with naturally occurring metals in the shale formation, and particularly divalent metal ions, which are then extracted with the spent fluid. This removal of naturally occurring metals may be increasing the permeability of the formation in the contact region adjacent to the well, thereby causing the observed increased production.
-
2.发明公开公开(公告)号：US20240117093A1
公开(公告)日：2024-04-11
申请号：US18528047
申请日：2023-12-04
申请人： COUNTERTRACE LLC
发明人： Robert E. HANES, JR. , Richard L. PETTYS , David M. HEADLEY , Paul T. HOOPINGARNER , Karen A. SCHERER
IPC分类号： C08F220/32 , C08F220/58 , C09K8/536 , C09K8/57 , C09K8/66 , C09K8/72 , E21B21/06
CPC分类号： C08F220/32 , C08F220/58 , C09K8/536 , C09K8/57 , C09K8/66 , C09K8/72 , E21B21/068
摘要： Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionalizing the (meth)acrylic polymer or copolymer in the presence of a hindered amine base. When appropriately functionalized, the macroparticulates may be used to sequester a contaminant from a substance in need of contaminant remediation, such as produced water or flowback water from a wellbore job site. Reclaimed water obtained from the macroparticulates may be utilized to form a treatment fluid. The macroparticulates may be located within a continuous flow line, particularly within a removable cartridge, to promote removal of at least one contaminant from a substance in need of contaminant remediation. The substance in need of contaminant remediation and/or the macroparticulates may be visually or spectroscopically interrogated to determine whether the macroparticulates have become saturated with contaminant.
-
公开(公告)号：US20240084189A1
公开(公告)日：2024-03-14
申请号：US18508885
申请日：2023-11-14
发明人： Katherine Leigh Hull , Hasmukh A. Patel , Younane N. Abousleiman , David Jacobi , Poorna Srinivasan
CPC分类号： C09K8/594 , C09K8/72 , E21B41/0064
摘要： A method for subsurface sequestration of carbon dioxide includes placing into a subterranean zone an oxidizer having a redox potential of at least 0.5 volts. The subterranean zone has an average total organic content of at least three weight percent. Carbon dioxide is injected into the subterranean zone via one or a plurality of wells. A total volume of all fluids injected into the subterranean zone via the one or the plurality of wells includes, on average per well per month, at least sixty-five weight percent carbon dioxide and less than thirty weight percent water.
-
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.
-
公开(公告)号：US20240067868A1
公开(公告)日：2024-02-29
申请号：US18497456
申请日：2023-10-30
CPC分类号： C09K8/72 , E21B43/27 , C09K2208/10
摘要： The present application relates to compositions and methods for controlled delivery of acid to a desired location, for instance to a subterranean formation.
-
6.发明授权公开(公告)号：US11879092B2
公开(公告)日：2024-01-23
申请号：US16691815
申请日：2019-11-22
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , A23C21/00 , C02F1/66 , C04B41/53 , C04B41/72 , B01J49/50 , C09K8/72 , C05B11/04 , C04B41/00 , A23J1/00 , C05B15/00 , C09K17/40 , C23F11/14 , C11D7/32 , C05D9/00 , C05B17/00 , C23F11/04 , C09K17/42 , C05G3/80 , C05G5/23 , B01J49/60 , A23J1/20 , B01D15/20 , B08B3/08 , B09C1/08 , C02F1/50 , C05C11/00 , C09K8/54 , C09K13/06 , C09K17/48 , C11D3/30 , C11D7/08 , E21B37/06 , C02F5/12
CPC分类号： C09K8/52 , A23C21/00 , A23J1/00 , A23J1/202 , B01D15/203 , B01J49/50 , B01J49/60 , B08B3/08 , B09C1/08 , C02F1/50 , C02F1/66 , C04B41/009 , C04B41/5315 , C04B41/5353 , C04B41/72 , C05B11/04 , C05B15/00 , C05B17/00 , C05C11/00 , C05D9/00 , C05G3/80 , C05G5/23 , C09K8/54 , C09K8/72 , C09K13/06 , C09K17/40 , C09K17/42 , C09K17/48 , C11D3/30 , C11D7/08 , C11D7/3218 , C23F11/04 , C23F11/142 , E21B37/06 , C02F5/125 , C09K2208/32 , C04B41/009 , C04B28/02
摘要： An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
-
公开(公告)号：US20230407737A1
公开(公告)日：2023-12-21
申请号：US17845706
申请日：2022-06-21
CPC分类号： E21B43/27 , E21B43/2405 , C09K8/72
摘要： Acidizing a sandstone formation in Earth crust, including pumping ammonium salts (an ammonium salt not having fluoride and an ammonium salt having fluoride) and nitrite salt through a wellbore into a sandstone formation, pumping an acid through the wellbore into the sandstone formation, generating heat, nitrogen gas, and hydrofluoric acid from reaction of the ammonium salts with the nitrite salt and the acid in the sandstone formation, and acidizing the sandstone formation with the hydrofluoric acid.
-
公开(公告)号：US11802234B2
公开(公告)日：2023-10-31
申请号：US17526802
申请日：2021-11-15
发明人： Andrew Bryce Conway
IPC分类号： C09K8/52 , E21B43/25 , E21B43/16 , C09K8/60 , E21B43/267 , C09K8/62 , C09K8/528 , E21B43/26 , E21B43/27 , E21B43/28 , C09K8/72
CPC分类号： C09K8/605 , C09K8/52 , C09K8/528 , C09K8/602 , C09K8/62 , E21B43/25 , E21B43/26 , E21B43/267 , E21B43/27 , E21B43/28 , C09K8/72 , C09K2208/32
摘要： Formulations and methods for stimulating the production from wells in nano-darcy shale formations. In one embodiment, the method includes injecting a treatment mixture containing a metal complexing agent into a nano-darcy shale formation adjacent to a well at a pressure below the fracture pressure of the formation. A sufficient contact time is allowed and then the treatment mixture is pumped from the subsurface. This has been shown to stimulate well production in shale formations. Without being held to a particular theory it appears that the metal complexing agent is binding with naturally occurring metals in the shale formation, and particularly divalent metal ions, which are then extracted with the spent fluid. This removal of naturally occurring metals may be increasing the permeability of the formation in the contact region adjacent to the well, thereby causing the observed increased production.
-
公开(公告)号：US11788397B2
公开(公告)日：2023-10-17
申请号：US17314761
申请日：2021-05-07
摘要： A method for in situ acid stimulation of a subterranean formation that contains a hydrocarbon reservoir may include contacting the formation with an acidizing fluid comprising an aqueous fluid, a sulfonyl chloride, and a mutual solvent, wherein upon exposure to formation temperatures, the sulfonyl chloride and aqueous fluid hydrolyze the sulfonyl chloride, thereby producing hydrochloric acid.
-
公开(公告)号：US20230323195A1
公开(公告)日：2023-10-12
申请号：US17717580
申请日：2022-04-11
发明人： Ataur Malik , Sultan Attiah
CPC分类号： C09K8/805 , C09K8/92 , C09K2208/26 , C09K8/72 , C09K8/594
摘要： Proppants for use in hydraulic fracturing and methods for making the proppants are provided. An exemplary proppant includes a proppant particle, and a first layer of active well treatment chemical disposed on the proppant particle.
-
-
-
-
-
-
-
-
-
搜索结果
796 条记录 (耗时 0.025 秒)
