公开(公告)号：US12060764B2

公开(公告)日：2024-08-13

申请号：US17958113

申请日：2022-09-30

Applicant: Halliburton Energy Services, Inc.

Inventor： Ernst Rudolf Man Schnell ,  Samuel J. Lewis ,  Keith Edward Blaschke

IPC: E21B33/16

CPC classification number: E21B33/16

Abstract: A method may comprise introducing an ultrasonic device into a wellbore with a cement slurry therein; generating ultrasonic waves with the ultrasonic device, wherein at least a portion of the ultrasonic waves are transmitted into at least a portion of the cement slurry; creating cavitation within at least the portion of the cement slurry with at least the portion of the ultrasonic waves; and allowing the cement slurry to set to form a hardened mass.

公开(公告)号：US11965397B2

公开(公告)日：2024-04-23

申请号：US17869361

申请日：2022-07-20

Applicant: Halliburton Energy Services, Inc.

Inventor： Lonnie Carl Helms

IPC: E21B34/14 ,  E21B33/14 ,  E21B33/16

CPC classification number: E21B34/142 ,  E21B33/146 ,  E21B33/16

Abstract: A downhole apparatus has a sleeve body sleeve body defining a sleeve body inner surface. The sleeve body has an internal thread on at least a portion thereof. The internal thread defining having a thread minor diameter. A plug seat is pressed into the threaded portion of the sleeve body. The plug seat has an unthreaded outer surface defining a plug seat outer diameter. The plug seat outer diameter is greater than the thread minor diameter.

公开(公告)号：US20240059950A1

公开(公告)日：2024-02-22

申请号：US18336560

申请日：2023-06-16

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Ali Mohammed Hussain Al Safran ,  Abdullah Saleh Hussain Al-Yami ,  Omprakash Pal ,  Sara Abdulaziz Alkhalaf

IPC: C09K8/40 ,  C09K8/42 ,  C09K8/46 ,  E21B33/16

CPC classification number: C09K8/40 ,  C09K8/424 ,  C09K8/46 ,  E21B33/16

Abstract: A cement spacer fluid and a method for making and a method for using the cement spacer fluid are provided. The cement spacer fluid includes a polyethyleneimine hydrochloride (PEI HCl) salt, an aqueous solvent, a viscosifier, and a weighting agent.

公开(公告)号：US20230175344A1

公开(公告)日：2023-06-08

申请号：US18070814

申请日：2022-11-29

Applicant: Canadian Casing Accessories Inc.

Inventor： Lyle Laun

IPC: E21B33/12 ,  E21B33/16 ,  E21B47/117

CPC classification number: E21B33/1208 ,  E21B33/16 ,  E21B47/117 ,  E21B2200/08 ,  E21B47/11

Abstract: An improved wiper plug and methods of using the plug during casing and cementing operations within a subterranean wellbore are provided. The present plugs may pre-loaded with at least one engineered material and operative to release the material over time at a target location within the wellbore, such release serving to enhance the degradation of dissolvable components within the plugs and/or within the casing string, and/or to alter the chemical properties of the wellbore environment.

公开(公告)号：US11668158B1

公开(公告)日：2023-06-06

申请号：US17538468

申请日：2021-11-30

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Hussain Ali Gahtani

IPC: E21B43/10 ,  E21B33/16

CPC classification number: E21B33/16 ,  E21B43/10

Abstract: A method includes running a workover liner, having a workover liner top end, into the workover well, installing a crossover bottom end of a crossover to the workover liner top end, installing a crossover top end of the crossover to a tieback casing bottom end of a tieback casing, running the workover liner, crossover, and tieback casing into the workover well such that the workover liner is set within the production liner, the crossover is set above the liner hanger of the production liner, and the tieback casing is set within the production casing and extends to a surface location. The method further includes cementing the workover liner, crossover, and tieback casing with cement and leaving behind a shoe track. The cement holds the workover liner, crossover, and tieback casing in place within the workover well and prevents leakage of fluids out of the workover well.

公开(公告)号：US11661817B2

公开(公告)日：2023-05-30

申请号：US17242825

申请日：2021-04-28

Applicant: Saudi Arabian Oil Company

Inventor： NourEldeen Nabil Abdelaziz Agour

IPC: E21B33/16 ,  E21B33/12

CPC classification number: E21B33/16 ,  E21B33/1204

Abstract: A cementing tool and a method for cementing a casing string using the cementing tool is provided. The cementing tool comprises threaded top and bottom openings for attaching to a casing string, a plurality of ports, and a plurality of shear plugs shaped to fit within the ports. In the method, a casing string comprising the cementing tool is run into a well and the cementing process of the casing string is initiated. When the casing shoe of the casing string becomes plugged, the cementing tool is activated without removing the casing string from the well. Activation of the cementing tool releases pressure trapped in the cementing tool, thereby releasing the shear plugs from the ports and opening the ports to create alternative passages for the cement to complete the cementing process.

公开(公告)号：US20190186228A1

公开(公告)日：2019-06-20

申请号：US16285530

申请日：2019-02-26

Applicant: GRYPHON OILFIELD SOLUTIONS, LLC

Inventor： Ian BECKETT ,  Tyler ROBERTS ,  Geoff WILLIAMS

IPC: E21B33/08 ,  E21B33/124 ,  E21B34/06 ,  E21B33/16

CPC classification number: E21B33/08 ,  E21B33/124 ,  E21B33/14 ,  E21B33/16 ,  E21B34/063 ,  E21B47/1025

Abstract: The present casing wiper plug system and method includes a novel top wiper plug and a dissolvable blocking element. The top wiper plug includes a rupture disk and an open tail section configured and dimensioned to receive the dissolvable blocking element. The blocking element can be dissolved by a solvent and can dissolve quickly given the size or materials of the blocking element. When used in conjunction with a bottom wiper plug and a displacement fluid, the central bores of the top and bottom wiper plugs and shoe track provide an open passage to the formation allowing future injection or fracking fluid to access the formation. The blocking element is released into a seat of the open tail section to temporarily block the passage so a casing test can be performed on the casing. After the test is complete, the blocking element is dissolved to reopen the passage.

公开(公告)号：US20190106952A1

公开(公告)日：2019-04-11

申请号：US16154248

申请日：2018-10-08

Applicant: Saudi Arabian Oil Company

Inventor： Joseph Michael Shine, JR.

IPC: E21B21/00 ,  C09K8/42 ,  C09K8/487

CPC classification number: E21B21/003 ,  C04B28/04 ,  C04B28/26 ,  C09K8/424 ,  C09K8/426 ,  C09K8/487 ,  E21B33/16 ,  C04B7/02 ,  C04B14/104 ,  C04B2103/20 ,  C04B2103/408 ,  C04B2103/50 ,  C04B12/04

Abstract: Embodiments of methods for reducing lost circulation in a wellbore comprise inserting a conduit comprising a first and second end and an outer diameter and an inner diameter into the wellbore, and pumping a thixotropic cement slurry, wherein the thixotropic cement slurry will increase in viscosity with no shear and decrease in viscosity with shear, and have a power law exponent value of less than or equal to 0.3 when the thixotropic cement slurry has a density of greater than 12.69 pounds per gallon, through the conduit into the wellbore, in which the thixotropic cement slurry comprises at least one cement, at least one viscosifier, mix water, and one or more than one strength accelerating additives. The method further comprises allowing the thixotropic cement slurry to harden in the wellbore to create a plug, removing the conduit from the wellbore, and reducing lost circulation via the plug in the wellbore.

公开(公告)号：US20190024476A1

公开(公告)日：2019-01-24

申请号：US15657986

申请日：2017-07-24

Applicant: Baker Hughes, a GE company, LLC

Inventor： Mark K. Adam

IPC: E21B33/14 ,  E21B23/06 ,  E21B33/12

CPC classification number: E21B33/14 ,  E21B23/06 ,  E21B33/1208 ,  E21B33/16 ,  E21B43/10

Abstract: A liner is cemented bottom up and then top down followed by setting the simultaneously set liner hanger/packer and releasing the running tool. In one embodiment the ported sub for top down cementing has ports opened and then closed with multiple dropped or pumped balls one of which lands in the running tool to set the hanger packer with pressure before running tool removal. A dart with a leading ball can follow the top down cement to close the ported sub and thereafter land in the liner hanger/packer to set it with pressure. A dart can lead the top down cement and open the ported sub followed by a second dart behind the top down cement to close the ported sub and land in the liner hanger/packer to set it and to release the running tool. The ported sub can be operated in other ways such as motors responsive to a remote signal.

公开(公告)号：US10036228B2

公开(公告)日：2018-07-31

申请号：US14719944

申请日：2015-05-22

Applicant: HydraWell Inc.

Inventor： Martin P. Coronado

IPC: E21B33/14 ,  E21B33/16 ,  E21B34/10

CPC classification number: E21B33/146 ,  E21B33/16 ,  E21B34/10

Abstract: Embodiments relate to methods and devices for improved liner drill-in operations. Specifically, embodiments may provide the capability to selectively allow rotation of the liner, even once a packer has been set. Typical embodiments might couple a port sealing collar (that can selectively seal or open a port in the liner) to a selectively lockable swivel joint, for example.