公开(公告)号：US20230392066A1

公开(公告)日：2023-12-07

申请号：US18452258

申请日：2023-08-18

申请人： SNF Group

发明人： Cédrick FAVERO ,  Olivier BRAUN ,  Lionel LAUBER

IPC分类号： C09K8/44

CPC分类号： C09K8/44

摘要： The invention relates to a method for modifying the water permeability of a subterranean formation, comprising at least the following steps:



Preparing an injection fluid from a dispersion of a hydrophilic phase in a lipophilic phase, with water or brine, the dispersion comprising:

a hydrophilic phase comprising at least one cross-linked (co)polymer PR,
a lipophilic phase,
at least one interface polymer composed of at least one monomer of formula (I):












Injecting the injection fluid into the subterranean formation,
said cross-linked (co)polymer PR forming a hydrogel in the presence of water.

公开(公告)号：US20230272154A1

公开(公告)日：2023-08-31

申请号：US18311268

申请日：2023-05-03

申请人： Hilti Aktiengesellschaft

发明人： Nicole BEHRENS ,  Alexander BORNSCHLEGL ,  Armin PFEIL

IPC分类号： C08G59/02 ,  C08G59/24 ,  C08G59/50 ,  C08G59/56 ,  C08K3/16 ,  C08K3/28 ,  C08K5/42 ,  C09K8/44

CPC分类号： C08G59/022 ,  C08G59/245 ,  C08G59/5006 ,  C08G59/5026 ,  C08G59/5033 ,  C08G59/56 ,  C08K3/16 ,  C08K3/28 ,  C08K5/42 ,  C09K8/44 ,  C08K2003/287

摘要： A method involves using at least one salt (S) selected from the salts of nitric acid, salts of nitrous acid, salts of halogens, or salts of trifluoromethanesulfonic acid, as an accelerator in a multi-component epoxy resin compound for the chemical fastening of construction elements and/or anchoring elements. Another method involves the chemical fastening of construction elements and anchoring elements, such as anchor rods, anchor bolts, rods, sleeves, reinforcing bars, screws, and the like in boreholes in various substrates.

公开(公告)号：US11661815B1

公开(公告)日：2023-05-30

申请号：US17833494

申请日：2022-06-06

申请人： Halliburton Energy Services, Inc.

发明人： Philippe Quero ,  Philip D. Nguyen

IPC分类号： E21B33/12 ,  E21B33/138 ,  C09K8/44 ,  C09K8/42

CPC分类号： E21B33/138 ,  C09K8/428 ,  C09K8/44 ,  E21B33/12

摘要： The present disclosure may relate to a method of remediating a wellbore. The method may comprise pumping a resin treatment fluid from a surface location to an annular space bounded by an outer diameter of a production tubular, wherein the resin treatment fluid comprises a liquid hardenable resin, a hardening agent, and a particulate bridging agent. The resin treatment fluid may gravity settle in the annular space to contact production equipment in the annular space such that at least a portion of the particulate bridging agent bridges across one or more damaged sections of the production equipment, wherein at least a portion of the liquid hardenable resin sets to form a hardened mass to seal the one or more damaged sections.

公开(公告)号：US11661489B2

公开(公告)日：2023-05-30

申请号：US16997589

申请日：2020-08-19

申请人： Saudi Arabian Oil Company

发明人： Vikrant Wagle ,  Abdullah AlYami ,  Ali Al-Safran ,  Mohammad Alharthi

IPC分类号： C04B26/14 ,  C08J9/12 ,  C08L63/00 ,  C09K8/42 ,  C09K8/44

CPC分类号： C08J9/122 ,  C04B26/14 ,  C08J2203/04 ,  C08L63/00

摘要： This disclosure relates to a foamable resin composition containing a nitrogen gas-generating compound and methods of using the composition for loss circulation control.

公开(公告)号：US20220333000A1

公开(公告)日：2022-10-20

申请号：US17412749

申请日：2021-08-26

申请人： Yangtze University

发明人： Gaoshen SU ,  Huan YANG ,  Xiaorong YU ,  Qiang LI ,  Wenchuan WU ,  Jieqiong CHENG ,  Chunyuan WU ,  Zhixue HUANG

IPC分类号： C09K8/42 ,  C09K8/44

摘要： The present disclosure provides a temperature-responsive self-degradable temporary plugging agent and a preparation method thereof as well as its application in plugging the wellbore, which relates to the technical field of oilfield exploitation. The temporary plugging agent provided in the present disclosure includes preparation raw materials of the following mass percentages: monomer 4-6%, crosslinker 0.2-1%, initiator 0.02-0.06%, degradation catalyst 0.05-0.1%, chain transfer agent 0.01-0.05%, and the balance water. The temporary plugging agent of the present disclosure is liquid before gelling, with a low viscosity and a good fluidity, and easy to be pumped. When being pumped into the wellbore, the temporary plugging agent may crosslink at the temperature of the reservoir section, with good gelling properties. At the end of the operations, it can be degraded by itself, without drilling tools, with no need for gel breaking, and with no need for additional degradation promoters.

公开(公告)号：US11472997B1

公开(公告)日：2022-10-18

申请号：US17412749

申请日：2021-08-26

申请人： Yangtze University

发明人： Gaoshen Su ,  Huan Yang ,  Xiaorong Yu ,  Qiang Li ,  Wenchuan Wu ,  Jieqiong Cheng ,  Chunyuan Wu ,  Zhixue Huang

IPC分类号： C09K8/42 ,  C09K8/44

摘要： The present disclosure provides a temperature-responsive self-degradable temporary plugging agent and a preparation method thereof as well as its application in plugging the wellbore, which relates to the technical field of oilfield exploitation. The temporary plugging agent provided in the present disclosure includes preparation raw materials of the following mass percentages: monomer 4-6%, crosslinker 0.2-1%, initiator 0.02-0.06%, degradation catalyst 0.05-0.1%, chain transfer agent 0.01-0.05%, and the balance water. The temporary plugging agent of the present disclosure is liquid before gelling, with a low viscosity and a good fluidity, and easy to be pumped. When being pumped into the wellbore, the temporary plugging agent may crosslink at the temperature of the reservoir section, with good gelling properties. At the end of the operations, it can be degraded by itself, without drilling tools, with no need for gel breaking, and with no need for additional degradation promoters.

公开(公告)号：US20220325602A1

公开(公告)日：2022-10-13

申请号：US17809759

申请日：2022-06-29

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Paul Joseph Tarabbia ,  Abdulmohsin Mansor

IPC分类号： E21B33/138 ,  C04B24/32 ,  C04B26/06 ,  C09K8/02 ,  C09K8/34 ,  C09K8/42 ,  C09K8/44 ,  E21B21/08 ,  E21B25/08 ,  E21B49/00

摘要： A method of coring to preserve subterranean soluble salt cements gives careful consideration to the selection and use of drilling fluids, specific logging of the zone of interest, displacing the near wellbore with an agent that when cured has either bound all subterranean water or cemented up all the available pore space, coring of the target formation zone containing the cured agent and retrieval of pressurized core material that allows CT scanning.

公开(公告)号：US20220298406A1

公开(公告)日：2022-09-22

申请号：US17760717

申请日：2020-09-21

申请人： Newpark Drilling Fluids, LLC

发明人： Ahmed Amer ,  Matthew Lynn Miller

IPC分类号： C09K8/512 ,  C09K8/516 ,  C09K8/44 ,  C09K8/514

摘要： Fluid loss from a wellbore into a subterranean formation may be reduced by forming a fluid barrier of a crosslinked alginate.

公开(公告)号：US20220243553A1

公开(公告)日：2022-08-04

申请号：US17724449

申请日：2022-04-19

申请人： ConocoPhillips Company

发明人： Randall S. SHAFER

IPC分类号： E21B33/12 ,  E21B33/13 ,  C09K8/42 ,  C09K8/44

摘要： A plug for Plug and Abandonment (P&A) operations. The plug is a two-part plug of bismuth-based alloy and resin, allowing for sealing of an oil well using two different mechanisms with a shorter plug. The sealing can be rock-to-rock and/or cast-in-place.

公开(公告)号：US11359128B2

公开(公告)日：2022-06-14

申请号：US15113219

申请日：2014-02-21

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Gary P. Funkhouser ,  Paul Joseph Jones ,  Greg Robert Hundt

IPC分类号： C09K8/44 ,  C04B26/14 ,  C04B24/04 ,  C04B24/12 ,  C04B24/42 ,  C08K5/17 ,  C08K5/5333 ,  C08K5/5357 ,  C08K5/5373 ,  C09K8/42 ,  E21B33/138 ,  E21B33/14 ,  E21B33/16 ,  E21B41/00

摘要： Cementing compositions including a di- or poly epoxide resin, and amine hardener, and a di- or polyfunctional alkylphosphonate ester fortifier and methods of using the cementing compositions such as in a subterranean zone penetrated by a well bore.