公开(公告)号：US20190128791A1

公开(公告)日：2019-05-02

申请号：US16229616

申请日：2018-12-21

申请人： Chevron U.S.A. Inc.

发明人： Douglas K. McCARTY ,  Jon E. BURGER ,  Lin LI ,  Guo-Qing TANG ,  Marcus O. WIGAND ,  Varadarajan DWARAKANATH ,  Dyung Tien VO

IPC分类号： G01N15/08 ,  G01N33/24 ,  C09K8/88 ,  C09K8/68 ,  C09K8/66 ,  C09K8/60 ,  E21B49/08 ,  E21B49/00 ,  E21B43/26

CPC分类号： G01N15/082 ,  C09K8/602 ,  C09K8/605 ,  C09K8/66 ,  C09K8/68 ,  C09K8/88 ,  C09K2208/28 ,  E21B43/26 ,  E21B49/00 ,  E21B49/08 ,  G01N33/24

摘要： A workflow to optimize a fracturing fluid for injection into a subterranean formation is provided. The workflow comprises measurement of fundamental properties and characteristics of reservoir rock and fluid, their interaction with fracturing fluid, computer-based models and laboratory performance testing to select preferred fracturing base fluid and additives package for use in fracturing/re-fracturing stimulation of specific shale formations to enhance hydrocarbon recovery.

公开(公告)号：US20180155613A1

公开(公告)日：2018-06-07

申请号：US15875265

申请日：2018-01-19

申请人： Flex-Chem Holding Company, LLC

发明人： Andrew Bryce Conway

IPC分类号： C09K8/60 ,  E21B43/267 ,  C09K8/528 ,  C09K8/62 ,  C09K8/72

CPC分类号： C09K8/605 ,  C09K8/528 ,  C09K8/602 ,  C09K8/62 ,  C09K8/72 ,  C09K2208/32 ,  E21B43/267

摘要： This disclosure describes 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：US20180112124A1

公开(公告)日：2018-04-26

申请号：US15789219

申请日：2017-10-20

申请人： Covestro LLC

发明人： Mark D. Conner ,  James A. Thompson-Colón ,  Philip R. Jones ,  Natalee Jo-Ann Smith ,  Paul S. Hassett

IPC分类号： C09K8/80 ,  C09K8/68 ,  C09K8/66 ,  A01N59/20 ,  E21B43/267

CPC分类号： C09K8/805 ,  A01N25/26 ,  A01N59/20 ,  C09K8/524 ,  C09K8/605 ,  C09K8/665 ,  C09K8/68 ,  C09K2208/12 ,  C09K2208/20 ,  C09K2208/26 ,  C09K2208/28 ,  C09K2208/32 ,  E21B33/13 ,  E21B37/06 ,  E21B41/02 ,  E21B43/267 ,  A01N33/12 ,  A01N35/02 ,  A01N57/34 ,  A01N59/00 ,  A01N59/16

摘要： The present invention provides for the use of polyurethane dispersions to adhere functional chemicals on to proppants. The present invention offers a way of assuring that the chemical is released in the formation and is released slowly over time.

公开(公告)号：US20180100097A1

公开(公告)日：2018-04-12

申请号：US15839523

申请日：2017-12-12

申请人： Ecolab USA Inc.

发明人： Duy T. Nguyen ,  Brian L. Mueller

IPC分类号： C09K8/584 ,  C09K8/62 ,  C09K8/60

CPC分类号： C09K8/584 ,  C09K8/602 ,  C09K8/605 ,  C09K8/62 ,  C09K2208/26 ,  C09K2208/28

摘要： A composition comprising an alcohol ether sulfonate and a quaternary ammonium salt is provided for use in methods of increasing recovery of crude oil from a subterranean hydrocarbon-containing formation.

公开(公告)号：US20180099882A1

公开(公告)日：2018-04-12

申请号：US15732243

申请日：2017-10-11

申请人： Roy W. Martin

发明人： Roy W. Martin

IPC分类号： C02F1/50 ,  C01B11/02 ,  C09K8/04 ,  C09K8/84 ,  C09K8/66

CPC分类号： C02F1/50 ,  C01B11/024 ,  C02F1/688 ,  C02F1/76 ,  C02F2103/023 ,  C02F2103/10 ,  C02F2103/20 ,  C02F2103/42 ,  C02F2303/04 ,  C09K8/04 ,  C09K8/605 ,  C09K8/66 ,  C09K8/84

摘要： The invention relates to a method for the autonomous generation of safe self-limiting concentrations of chlorine dioxide for the treatment of process water. The method comprises a system that is self-limiting such that variations in water flow-rate and/or feed-rate of chlorite donor does not allow for increased concentrations of chlorine dioxide. The effluent concentration from the system does not exceed 3000 ppm thereby providing a means of generating chlorine dioxide for use where remote applications and/or where unskilled personnel are involved.

公开(公告)号：US20180044572A1

公开(公告)日：2018-02-15

申请号：US15552454

申请日：2016-02-18

申请人： Schlumberger Technology Corporation

发明人： Samuel DANICAN

IPC分类号： C09K8/68 ,  C09K8/60 ,  E21B43/267 ,  C09K8/88

CPC分类号： C09K8/68 ,  C09K8/528 ,  C09K8/602 ,  C09K8/604 ,  C09K8/605 ,  C09K8/685 ,  C09K8/88 ,  C09K8/885 ,  C09K8/887 ,  C09K2208/26 ,  C09K2208/28 ,  C09K2208/32 ,  E21B43/267

摘要： Methods of fracturing a subterranean formation include introducing a fracturing fluid containing an aqueous medium, a viscosifying agent and a polyethylene oxide alkyl ether through a wellbore and into the subterranean formation, pressurizing the fracturing fluid to fracture the subterranean formation, and allowing the fracturing fluid to flow back into the wellbore from the subterranean formation. The polyethylene oxide alkyl ether useful in some embodiments is defined according to the formula: where R1 and R2 are independently selected from linear or branched alkyl groups having from 2 to 16 carbon atoms, and ‘n’ may be a value selected from within a range of from 1 to 100.

公开(公告)号：US20180030340A1

公开(公告)日：2018-02-01

申请号：US15549125

申请日：2015-03-10

申请人： Halliburton Energy Services, Inc.

发明人： Michael A. MCCABE ,  Jim D. WEAVER

IPC分类号： C09K8/84 ,  C09K8/504 ,  C09K8/60 ,  C09K8/54 ,  C09K8/94 ,  C09K8/52 ,  C09K8/92 ,  C09K8/536

CPC分类号： C09K8/845 ,  C09K8/03 ,  C09K8/5045 ,  C09K8/52 ,  C09K8/528 ,  C09K8/536 ,  C09K8/54 ,  C09K8/572 ,  C09K8/58 ,  C09K8/602 ,  C09K8/605 ,  C09K8/607 ,  C09K8/62 ,  C09K8/72 ,  C09K8/92 ,  C09K8/94 ,  C09K2208/10 ,  C09K2208/20 ,  C09K2208/22 ,  C09K2208/26 ,  C09K2208/28 ,  C09K2208/30 ,  C09K2208/32 ,  E21B21/003 ,  E21B37/06 ,  E21B41/02

摘要： Methods comprising preparing a gelled fluid comprising a base fluid, a first gelling agent, and particulates; introducing the gelled fluid into a process stream, the process stream in fluid communication with a subterranean formation; introducing anhydrous ammonia into the gelled fluid at a downstream location in the process stream, thereby forming a particulate-containing treatment fluid; and introducing the particulate-containing treatment fluid into the subterranean formation from the process stream and through the wellhead.

公开(公告)号：US20170369768A1

公开(公告)日：2017-12-28

申请号：US15191858

申请日：2016-06-24

申请人： Cleansorb Limited

发明人： Ralph Edmund HARRIS

IPC分类号： C09K8/74 ,  E21B43/25 ,  C09K8/72 ,  E21B43/26 ,  C09K8/58

CPC分类号： E21B43/26 ,  C09K8/602 ,  C09K8/605 ,  C09K8/607 ,  C09K8/68 ,  C09K8/72 ,  C09K8/86 ,  C09K2208/12 ,  C09K2208/32 ,  E21B43/25

摘要： The present technology relates to a process for enhancing hydrocarbon production from a shale formation. In particular, the present technology relates to a process wherein a treatment fluid comprising a water soluble delayed release carbonate-dissolving agent is introduced into the shale formation after or as part of a hydraulic fracturing process. The present technology also relates to a treatment fluid that can be used in such a process.

公开(公告)号：US20170349821A1

公开(公告)日：2017-12-07

申请号：US15522553

申请日：2014-12-03

申请人： Multi-Chem Group, LLC

发明人： Fang Wei ,  Pushkala Krishnamurthy ,  Ying Cong Jiang ,  Erick J. Acosta

IPC分类号： C09K8/92 ,  E21B43/26 ,  E21B41/02 ,  C09K8/524 ,  C09K8/536 ,  C09K8/70 ,  C09K8/60 ,  C09K8/54 ,  E21B43/267 ,  E21B37/06

CPC分类号： C09K8/92 ,  C09K8/52 ,  C09K8/524 ,  C09K8/536 ,  C09K8/54 ,  C09K8/602 ,  C09K8/605 ,  C09K8/68 ,  C09K8/70 ,  C09K2208/10 ,  C09K2208/20 ,  E21B37/06 ,  E21B41/02 ,  E21B43/26 ,  E21B43/267

摘要： Certain particulates of encapsulated treatment chemicals, and methods of and systems for their use in subterranean formations, are provided. In one embodiment, the methods comprise: providing a plurality of treatment particulates, at least one of which comprising a polymer matrix that comprises and/or encages at least one treatment chemical and a coating disposed around an outer surface of the polymer matrix; and introducing the treatment particulates into a well bore penetrating at least a portion of a subterranean formation.

公开(公告)号：US20170292060A1

公开(公告)日：2017-10-12

申请号：US15481614

申请日：2017-04-07

申请人： BAKER HUGHES INCORPORATED

发明人： BRANDON VITTUR ,  GORDON MACKENZIE ,  SAHAR MOUALLEM

IPC分类号： C09K8/62 ,  C02F1/50 ,  B01J20/20 ,  B01J20/10 ,  E21B37/06 ,  C01B11/02 ,  A01N25/08 ,  A01N59/00 ,  E21B43/26 ,  E21B43/267 ,  C09K8/80 ,  B01J20/28

CPC分类号： C09K8/62 ,  A01N25/08 ,  A01N59/00 ,  B01J20/103 ,  B01J20/20 ,  B01J20/28047 ,  B01J20/2805 ,  C01B11/022 ,  C02F1/42 ,  C02F1/50 ,  C02F1/76 ,  C02F2103/10 ,  C02F2303/04 ,  C02F2305/02 ,  C02F2305/14 ,  C09K8/035 ,  C09K8/605 ,  C09K8/80 ,  E21B37/06 ,  E21B43/26 ,  E21B43/267

摘要： A well treatment material for introduction into a subterranean formation is provided. The well treatment material can include a biocide collected onto a sorbent. The biocide can be capable of being desorbed at a generally constant rate over an extended period of time into the subterranean formation. The biocide can be an oxidizing biocide or a non-oxidizing biocide. The sorbent material can include one or more of an absorbent material and an adsorbent material. The biocide can be chlorine dioxide. The sorbent can be one or more of silica gel and graphite.