公开(公告)号：US10400155B2

公开(公告)日：2019-09-03

申请号：US14414088

申请日：2013-07-08

Applicant: M-I, L.L.C.

Inventor： Sashikumar Mettath ,  Steven Young ,  Emanuel Stamatakis ,  Balakrishnan Panamarathupalayam ,  Changping Sui

IPC: C09K8/502 ,  C09K8/03 ,  C09K8/34 ,  C09K8/36 ,  E21B36/00

Abstract: A insulating annular fluid for reducing convective currents in the annular region a wellbore is provided that includes an oleaginous fluid, a silica, and, in some embodiments, organoclay.

公开(公告)号：US20170198189A1

公开(公告)日：2017-07-13

申请号：US15400422

申请日：2017-01-06

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam

IPC: C09K8/035 ,  E21B43/25 ,  E21B43/08 ,  E21B43/10 ,  E21B37/08

CPC classification number: C09K8/52 ,  C08F212/14 ,  C08F220/54 ,  C08F220/56 ,  C08F228/02 ,  C09K8/035 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/26 ,  E21B21/003 ,  E21B37/00 ,  E21B37/08 ,  E21B43/082 ,  E21B43/10 ,  E21B43/25 ,  G01V3/20 ,  G01V3/24 ,  G01V3/34 ,  C08F2220/585

Abstract: A wellbore fluid includes a base fluid; and a crosslinked and branched polymeric fluid loss control agent formed from at least an acrylamide monomer and a sulfonated anionic monomer; wherein the fluid loss control agent has an extent of crosslinking that is selected so that the fluid loss control agent has a viscosity that is within a peak viscosity response of the viscosity response curve.

公开(公告)号：US20150322744A1

公开(公告)日：2015-11-12

申请号：US14648553

申请日：2013-11-25

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Changping Sui ,  Hui Joyce Zhang ,  William E. Foxenberg

IPC: E21B36/00 ,  C09K8/82 ,  E21B43/24

CPC classification number: E21B36/003 ,  C04B26/04 ,  C09K8/34 ,  C09K8/42 ,  C09K8/44 ,  C09K8/50 ,  C09K8/502 ,  C09K8/82 ,  E21B43/24 ,  C04B14/066 ,  C04B14/28 ,  C04B14/368

Abstract: An insulating packer fluid including an oleaginous fluid and a styrenic thermoplastic block copolymer and methods of preparing the packer fluid are provided. Also provided are methods of using the insulating packer fluid that include pumping an insulating packer fluid into an annulus formed between two concentric strings of pipe extending into a wellbore.

Abstract translation: 提供包括含油流体和苯乙烯类热塑性嵌段共聚物的绝缘封隔器流体和制备封隔器流体的方法。 还提供了使用绝缘封隔器流体的方法，其包括将绝缘封隔器流体泵入形成在延伸到井眼中的两个同心管的管道之间的环形空间中。

公开(公告)号：US20190040296A1

公开(公告)日：2019-02-07

申请号：US16074060

申请日：2017-01-30

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Paulo Pauferro, JR.

IPC: C09K8/36

Abstract: Compositions herein may include an oleaginous continuous phase, an aqueous discontinuous phase, a first clay comprising an organophilic smectite clay, and a second clay comprising a magnesium silicate clay. Methods herein may include circulating such fluids downhole as well as admixing a magnesium silicate dispersed clay and an organophilic smectite clay in an oleaginous base fluid.

公开(公告)号：US10030091B2

公开(公告)日：2018-07-24

申请号：US14901118

申请日：2014-09-11

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Balakrishnan Panamarathupalayam

IPC: C08F226/08 ,  C08F230/08 ,  C08F220/56 ,  C08F226/10 ,  C08F220/58 ,  C08F236/22 ,  C08F220/54 ,  C08F236/20 ,  C08K5/5425 ,  C08F216/12

Abstract: Compositions may include a monomer, an organic crosslinker, an inorganic crosslinker, and an initiator. Furthermore, compositions may include at least one monomer and triethoxyvinylsilane (TEVS) to provide crosslinking among the at least one monomer.

公开(公告)号：US20170199296A1

公开(公告)日：2017-07-13

申请号：US15400438

申请日：2017-01-06

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Amr Essawi

IPC: G01V3/20 ,  G01V3/34 ,  C09K8/035 ,  C08F220/56 ,  C09K8/12

CPC classification number: C09K8/52 ,  C08F212/14 ,  C08F220/54 ,  C08F220/56 ,  C08F228/02 ,  C09K8/035 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/26 ,  E21B37/00 ,  E21B37/08 ,  E21B43/082 ,  E21B43/10 ,  E21B43/25 ,  G01V3/20 ,  G01V3/24 ,  G01V3/34 ,  C08F2220/585

Abstract: A method of electrically logging a section of a wellbore includes circulating a wellbore fluid within the wellbore, the wellbore fluid including a base fluid; and a crosslinked and branched polymeric fluid loss control agent formed from at least an acrylamide monomer and a sulfonated anionic monomer; wherein the fluid loss control agent has an extent of crosslinking that is selected so that the fluid loss control agent has a viscosity that is within a peak viscosity response of the viscosity response curve; placing within the wellbore a wellbore logging tool capable of applying an electrical current to the wellbore; applying electrical current from the logging tool; and collecting an electrical log of the portion of the wellbore that has had electrical current applied thereto.

公开(公告)号：US20170198192A1

公开(公告)日：2017-07-13

申请号：US15400354

申请日：2017-01-06

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Daniel Alvarez

IPC: C09K8/52 ,  E21B37/00

CPC classification number: C09K8/52 ,  C08F212/14 ,  C08F220/54 ,  C08F220/56 ,  C08F228/02 ,  C09K8/035 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/26 ,  E21B37/00 ,  E21B37/08 ,  E21B43/082 ,  E21B43/10 ,  E21B43/25 ,  G01V3/20 ,  G01V3/24 ,  G01V3/34 ,  C08F2220/585

Abstract: A method may include circulating a breaker fluid into a wellbore having a filtercake on the walls thereon, the filter cake including copolymer formed from at least one acrylamide monomer and at least one sulfonated anionic monomer, the breaker fluid comprising: a base fluid; and a mixture of hydrolysable esters of dicarboxylic acids.

公开(公告)号：US11286410B2

公开(公告)日：2022-03-29

申请号：US14979975

申请日：2015-12-28

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Balakrishnan Panamarathupalayam

IPC: C09K8/035 ,  C09K8/512 ,  C09K8/508

Abstract: A brine viscosifier includes at least one monomer and triethoxyvinylsilane (TEVS) to provide crosslinking among the at least one monomer. A method includes admixing a composition comprising a brine, a thermal stabilizer, a pH buffer, and a polymer. The polymer may include a monomer, an organic crosslinker, an inorganic crosslinker; and an initiator.

公开(公告)号：US20200299565A1

公开(公告)日：2020-09-24

申请号：US16652393

申请日：2018-11-28

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam

IPC: C09K8/512 ,  E21B17/22

Abstract: A coiled tubing wellbore fluid may include a base fluid; and a crosslinked and branched polymeric fluid loss control agent formed from at least an acrylamide monomer and a sulfonated anionic monomer; wherein the coiled tubing wellbore fluid has a low shear rate viscosity, measured at 120 F at 3 pm, of at least 20,000 centipoise.

公开(公告)号：US20200048534A1

公开(公告)日：2020-02-13

申请号：US16476395

申请日：2017-01-06

Applicant: M-I L.L.C.

Inventor： Balakrishnan Panamarathupalayam ,  Richard Toomes ,  Daniel Alvarez

IPC: C09K8/68 ,  C09K8/72 ,  C09K8/66 ,  E21B37/00

Abstract: A breaker fluid includes a base fluid; lactide; and a mixture of hydrolyzable esters of dicarboxylic acids. A method of breaking a filtercake in a wellbore includes circulating a breaker fluid into the wellbore, the breaker fluid including: a base fluid; lactide; and a mixture of hydrolyzable esters of dicarboxylic acids.