公开(公告)号：US12098416B2

公开(公告)日：2024-09-24

申请号：US16833106

申请日：2020-03-27

Applicant: Halliburton Energy Services, Inc.

Inventor： Dana Safarian ,  Alec Breen

IPC: C12Q1/18 ,  A01N33/12 ,  A01N35/02 ,  A01N43/64 ,  A01N57/20 ,  C09K8/60 ,  C12Q1/06 ,  G01N21/78

CPC classification number: C12Q1/18 ,  A01N33/12 ,  A01N35/02 ,  A01N43/64 ,  A01N57/20 ,  C09K8/605 ,  C12Q1/06 ,  G01N21/78

Abstract: Systems and methods for rapidly assessing biocide contamination and biological contamination treatments found in fluids used for subterranean well treatments and related operations are provided. In some embodiments, the methods include providing a fluid including an aqueous base fluid and one or more microorganisms; introducing a first sample of the fluid to a first culture device including an indicator reagent, wherein over a period of about 48 hours or less the indicator reagent indicates a first color change in the first sample of the fluid; and determining a first count of the microorganisms in the fluid based, at least in part, on the first color change.

公开(公告)号：US11873442B2

公开(公告)日：2024-01-16

申请号：US16062510

申请日：2016-12-23

Applicant: AGRANA BETEILIGUNGS-AKTIENGESELLSCHAFT

Inventor： Florian Emerstorfer ,  Markus Omann ,  Johann Marihart ,  Marnik Michel Wastyn

IPC: C09K8/035 ,  C09K8/60 ,  A01N35/06 ,  A01N65/08 ,  F24T10/20

CPC classification number: C09K8/035 ,  A01N35/06 ,  A01N65/08 ,  C09K8/605 ,  F24T10/20 ,  Y02E10/10 ,  A01N65/08 ,  A01N25/04 ,  A01N37/36 ,  A01N35/06 ,  A01N25/04 ,  A01N37/36

Abstract: The present invention relates to the use of a process fluid with an environmentally compatible biostabilizer in a geothermal borehole. The biostabilizer is characterized in that it comprises at least one organic acid, or a salt, alcohol or aldehyde thereof, wherein the at least one organic acid is selected from the group consisting of hop acids, resin acids, fatty acids and mixtures thereof. The biostabilizer is preferably a mixture of hop extract, rosin and myristic acid. The invention further relates to related process fluids and methods for producing the same.

公开(公告)号：US11781062B1

公开(公告)日：2023-10-10

申请号：US17844731

申请日：2022-06-21

Applicant: Southwest Petroleum University ,  Tianjin Branch of CNOOC (China) Co., Ltd

Inventor： Pingli Liu ,  Jun Li ,  Jian Yang ,  Jianfa Wu ,  Shang Gao ,  Xingwu Guo ,  Jian Zou ,  Xitang Lan ,  Liping Zhang ,  Zhifeng Luo ,  Lan Ren ,  Changlong Liu ,  Juan Du ,  Xiang Chen ,  Nianyin Li ,  Peng Wang

IPC: C09K8/80 ,  C09K8/60 ,  C09K8/68

CPC classification number: C09K8/80 ,  C09K8/605 ,  C09K8/608 ,  C09K8/68 ,  C09K2208/08 ,  C09K2208/10 ,  C09K2208/28

Abstract: The present invention relates to a bionics-based efficiently transported and packed proppant and preparation method thereof, comprising enhanced fracturing fluid and biomimetic dandelion proppant; the mass ratio of the enhanced fracturing fluid and the biomimetic dandelion is: 1-2:100-400; the 100 pbw of enhanced fracturing fluid includes 0.1-1 pbw of drag reducing agent, 0.01-0.1 pbw of cleanup additive, 0.2-0.8 pbw of clay stabilizer, 0.01-0.05 pbw of bactericide, 0.01-0.2 pbw of nanoparticle enhancer, and water; the biomimetic dandelion proppant consists of modified proppant and modified fiber, and the mass ratio between the modified proppant and the modified fiber is 99-99.9:0.1-1.

公开(公告)号：US20190128791A1

公开(公告)日：2019-05-02

申请号：US16229616

申请日：2018-12-21

Applicant: Chevron U.S.A. Inc.

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

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

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

Abstract: 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

Applicant: Flex-Chem Holding Company, LLC

Inventor： Andrew Bryce Conway

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

CPC classification number: C09K8/605 ,  C09K8/528 ,  C09K8/602 ,  C09K8/62 ,  C09K8/72 ,  C09K2208/32 ,  E21B43/267

Abstract: 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

Applicant: Covestro LLC

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

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

CPC classification number: 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

Abstract: 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

Applicant: Ecolab USA Inc.

Inventor： Duy T. Nguyen ,  Brian L. Mueller

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

CPC classification number: C09K8/584 ,  C09K8/602 ,  C09K8/605 ,  C09K8/62 ,  C09K2208/26 ,  C09K2208/28

Abstract: 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

Applicant: Roy W. Martin

Inventor： Roy W. Martin

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

CPC classification number: 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

Abstract: 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

Applicant: Schlumberger Technology Corporation

Inventor： Samuel DANICAN

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

CPC classification number: 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

Abstract: 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

Applicant: Halliburton Energy Services, Inc.

Inventor： Michael A. MCCABE ,  Jim D. WEAVER

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

CPC classification number: 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

Abstract: 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.