公开(公告)号：US20220372841A1

公开(公告)日：2022-11-24

申请号：US17767164

申请日：2020-10-21

Applicant: Velikx LLC

Inventor： OGHOMWEN VO ,  FELIX AY

IPC: E21B33/14

Abstract: An apparatus for controlling flow of cement slurry in a well casing includes a cylindrical housing and a hopper within the cylindrical housing to collect the cement slurry. The apparatus further includes tubing, including at least one tube, coupled to the hopper within the cylindrical housing to transport the cement slurry from the hopper to at least one exit port. The apparatus further includes a bottom plate coupled to the tubing, the bottom plate including at least one exit port shaped to diffuse the cement slurry and arranged on the bottom plate such that the cement slurry flows along the entire internal diameter of the well casing.

公开(公告)号：US11506022B2

公开(公告)日：2022-11-22

申请号：US17044893

申请日：2019-04-04

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS

Inventor： Ricardo Freire Grandi ,  Renan da Silva Costa ,  Otavio Campos de Araujo ,  Leonardo Marazzo Garcia ,  Kris Pernasetti Dunlop ,  Jose Ricardo Brigido de Moura Filho ,  Joao Paulo Sanseverino Abdu ,  Joao Marcelo Mussi Baptista ,  Gustavo Salgueiro de Oliveira ,  Giovani Ferreira Machado ,  George Souza Costa ,  Frederico Ferreira Chaves Vaz ,  Ednaldo Goncalves de Moura ,  Cristiane Koslinski ,  Carolina Bertholdo da Cunha ,  Aliel Faria Riente ,  Antonio Carlos Ramos Junior ,  Alexandre Campos Manhaes

IPC: E21B23/00 ,  E21B23/06 ,  E21B33/064 ,  E21B33/14 ,  E21B41/00 ,  E21B7/00 ,  E21B47/00

Abstract: There is provided a method for well construction comprising the steps of: a first phase of the well construction, in which a bottom hole assembly, BHA, with a first drill is used for drilling, and a conductor casing is lowered into the well and cemented; a second phase of the well construction, in which a second drill is used for drilling, wherein a production adapter base, PAB, is installed in parallel with lowering a blowout preventer, BOP; and a third phase of the well construction in which a third drill is used for drilling, for the steps of landing and geonavigation inside a reservoir.

公开(公告)号：US20220364459A1

公开(公告)日：2022-11-17

申请号：US17814246

申请日：2022-07-22

Applicant: Schlumberger Technology Corporation

Inventor： Oney Erge ,  Ginger Vinyard Hildebrand ,  Wayne Kotovsky

IPC: E21B47/047 ,  E21B33/13 ,  E21B47/005 ,  E21B33/14 ,  E21B47/06

Abstract: A method for moving fluid through a pipe in a wellbore includes placing at least two different fluids in the pipe and in an annular space between the pipe and the wellbore. Fluid is pumped into the pipe at a rate to achieve a desired set of conditions. Using a predetermined volume distribution of the annular space, an axial position of each of the at least two fluids in the annular space during the pumping the displacement fluid is calculated.

公开(公告)号：US20220363971A1

公开(公告)日：2022-11-17

申请号：US17317998

申请日：2021-05-12

Applicant: Saudi Arabian Oil Company

Inventor： Sara Abdulaziz Alkhalaf ,  Abdullah Al-Yami ,  Vikrant Wagle ,  Ali Alsafran

IPC: C09K8/42 ,  C09K8/40 ,  C09K8/46 ,  E21B33/14

Abstract: According to one or more embodiments of the present disclosure, a spacer fluid includes an aqueous fluid, a weighting agent, and a clay stabilizer consisting of one or more polyethylene polyamines having a first structure H2NCH2CH2(NHCH2CH2)xNH2, where x is an integer greater than or equal to 3. The amount of the clay stabilizer may be from 0.1 wt. % to 10 wt. % relative to the total weight of the spacer fluid. The average molecular weight of the polyethylene polyamines in the spacer fluid having the first structure may be from 200 g/mol to 400 g/mol. All of the polyethylene polyamines in the spacer fluid having the first structure may be encompassed in the clay stabilizer. Methods for cementing a casing in a wellbore using the spacer fluid are also disclosed.

公开(公告)号：US11485895B2

公开(公告)日：2022-11-01

申请号：US16703408

申请日：2019-12-04

Applicant: Halliburton Energy Services, Inc.

Inventor： Ramesh Muthusamy ,  Remitha Anandoth Koyitti ,  Abhimanyu Pramod Deshpande ,  Sohini Bose ,  Rahul Chandrakant Patil

IPC: E21B33/14 ,  C09K8/487 ,  C09K8/467 ,  C04B28/02 ,  C04B24/26 ,  C04B28/04 ,  C04B103/46 ,  E21B33/138

Abstract: Compositions comprising: (i) a hydraulic cement; and (ii) a polymer comprising at least one monomer having an oxazoline group. Methods of cementing in a well comprising: (A) forming a hydraulic cement composition comprising: (i) a hydraulic cement; (ii) a polymer comprising at least one monomer having an oxazoline group; and (iii) water; (B) introducing the hydraulic cement composition into the well.

公开(公告)号：US11448038B2

公开(公告)日：2022-09-20

申请号：US16953186

申请日：2020-11-19

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： Jinhua Cao ,  Michael Linley Fripp ,  Tor Sigve Saetre ,  Lonnie Carl Helms

IPC: E21B33/14 ,  E21B34/08 ,  E21B34/14

Abstract: A reverse cementing apparatus having a reverse cementing body with an internal bore, the reverse cementing body being coupleable to the downhole end of a casing pipe. The apparatus may further have a valve actuable from a closed to an open configuration, the closed configuration obstructing flow of fluid through the internal bore of the reverse cementing body. The valve may be configured to obstruct flow in an uphole direction during deployment but permit flow in the downhole direction. The apparatus further includes a port provided extending through a wall of the reverse cementing valve body from the internal bore to external the reverse cementing body, a fluid communication channel extending from the port to the internal bore. An actuable barrier member may be provided which is actuable to a closed position obstructing flow of fluid through the port upon actuation.

公开(公告)号：US11448037B2

公开(公告)日：2022-09-20

申请号：US16634546

申请日：2018-08-01

Applicant: Deltatek Oil Tools Limited

Inventor： Stephen Edmund Bruce ,  David Michael Shand ,  Tristam Paul Horn

IPC: E21B33/14 ,  E21B17/07 ,  E21B47/005 ,  E21B33/16 ,  E21B34/06 ,  E21B34/08 ,  E21B47/06 ,  E21B36/00 ,  E21B33/13

Abstract: A method of conditioning a well bore featuring an annulus (50) between a bore-lining tubing (20) and a surrounding bore wall (110) comprises pumping conditioning fluid through an inner tubing (10) located within the bore-lining tubing (20) and into a portion of the well bore containing the bore-lining tubing to affect the temperature of the portion of the well bore containing the bore-lining tubing. The annulus (50) between the bore-lining tubing (20) and the surrounding bore wall (110) is at least partially filled with settable material (54). The affected temperature of the portion of the well bore containing the bore-lining tubing influences the setting of the settable material. For example, heating the bore may accelerate setting of the material, while cooling the bore may retard setting of the material.

公开(公告)号：US11447679B2

公开(公告)日：2022-09-20

申请号：US15753407

申请日：2015-09-15

Applicant: Halliburton Energy Services, Inc.

Inventor： Lee Hall ,  Jay Paul Deville ,  Mohammad Vatankhah Varnosfaderani ,  Sergey Sheyko

IPC: C09K8/035 ,  C09K8/68 ,  C09K8/70 ,  C09K8/72 ,  C09K8/92 ,  C09K8/03 ,  C09K8/80 ,  C09K8/88 ,  E21B21/00 ,  E21B33/14 ,  E21B37/00 ,  E21B43/26

Abstract: Core-shell particles for treatment of subterranean formations are provided. A method may include placing in the subterranean formation a composition including a core-shell particle including a hydrophilic core and a hydrophobic shell.

公开(公告)号：US11428073B2

公开(公告)日：2022-08-30

申请号：US17054987

申请日：2019-06-11

Applicant: DOWNHOLE PRODUCTS LIMITED

Inventor： Alexander Craig Mackay

IPC: E21B34/10 ,  E21B33/14 ,  E21B47/06 ,  E21B23/04

Abstract: A toe valve for use in a wellbore includes: a tubular mandrel having couplings at longitudinal ends thereof for assembly as part of a casing or liner string; a housing extending along a periphery of the mandrel and mounted thereto; a valve piston disposed in an annulus formed between the housing and the mandrel, movable between an open position and a closed position, disposed between a valve port of the housing and a valve port of the mandrel in the closed position; a fastener releasably connecting the valve piston to the housing in the closed position; an atmospheric chamber forming a portion of the annulus adjacent to the valve piston; and a drive piston disposed in the annulus adjacent to a drive port of the mandrel and operable to release the valve piston.

公开(公告)号：US20220268115A1

公开(公告)日：2022-08-25

申请号：US17183884

申请日：2021-02-24

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Hamza Fethiza Tedjani

IPC: E21B23/01 ,  E21B17/14 ,  E21B33/14

Abstract: An interchangeable casing shoe for a wellbore is disclosed. The interchangeable casing shoe includes a cylindrical housing, a first engagement assembly mounted to an outer diameter of the cylindrical housing and selectively extendible between a recessed position and an extended position, and a second engagement assembly mounted within the cylindrical housing and configured to engage a running tool. The wellbore has a wellbore tubular having an internal diameter surface. When in the extended position, the first engagement assembly engages the internal diameter surface of the wellbore tubular. When deployed at depth in the wellbore, the running tool engages the second engagement assembly and selectively shifts the first engagement assembly into the recessed position releasing the casing shoe.