公开(公告)号：US20250003312A1

公开(公告)日：2025-01-02

申请号：US18882439

申请日：2024-09-11

Applicant: NESA ENERGY LLC

Inventor： Michael Sepulveda ,  Sigurd Eirik Sperbund

IPC: E21B33/14 ,  F16D23/14

Abstract: Rotating a casing during a cementing operation to ensure efficient displacement of cement slurry. More specifically, embodiments are directed towards a sub and rotating tool that are positioned above a first cement operation, wherein the rotating tool is positioned in a kickoff point or build section of a horizontal well.

公开(公告)号：US12173581B2

公开(公告)日：2024-12-24

申请号：US16063356

申请日：2016-12-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Martinus Johannes Bernardus Bogaerts ,  Stephen Paul Bracken ,  Gioconda Tovar ,  Jose Raul Contreras Escalante ,  Thilagawathy Nadaraja ,  Pavel Nyaga ,  Edward Smetak ,  Andrew Whiddon

IPC: E21B33/14 ,  E21B41/00 ,  E21B47/005 ,  E21B47/06 ,  E21B47/10 ,  G06F30/20

Abstract: A method for performing an integrated cementing operation at a wellsite is disclosed. The method involves simulating a cementing operation including pumping sequences for selectively pumping drilling fluid and cement into the wellbore according to pre-operation simulated pumping parameters, measuring real-time pumping parameters of the drilling fluid and the cement according to the pumping sequences, during the measuring, simulating real-time pumping parameters for each of the defined pumping sequences based on the measured real-time pumping parameters, and comparing the real-time simulated pumping parameters with the pre-operation simulated pumping parameters. The method may also involve measuring a return flow rate of fluid flowing out of the wellbore, defining a loss zone within the wellbore, simulating the return flow rate based on the input flow rate, and generating a rate of the fluid loss such that the simulated return flow rate equals the actual return flow rate.

公开(公告)号：US20240352303A1

公开(公告)日：2024-10-24

申请号：US18639204

申请日：2024-04-18

Applicant: Kraton Corporation

Inventor： Stephanie Grant ,  David Germack ,  Steven Huynh

IPC: C09K8/467 ,  C04B24/26 ,  C04B28/04 ,  C04B103/00 ,  E21B33/14

CPC classification number: C09K8/467 ,  C04B24/2676 ,  C04B24/2688 ,  C04B28/04 ,  E21B33/14 ,  C04B2103/0051

Abstract: Cement compositions comprising a modified styrenic block copolymers and methods for making/using the same are disclosed. The modified styrenic block copolymer has at least one monoalkenyl arene polymer block A, at least one conjugated diene polymer block B, and at least an epoxy functional group or derivative thereof. The modified styrenic block copolymer has a degree of epoxidation of up to 10-90%. The cement composition can be used in subterranean applications, as well as in building and construction materials. The modified styrenic block copolymers swell upon contact water or other aqueous fluids to seal cracks in the cement.

公开(公告)号：US12123279B2

公开(公告)日：2024-10-22

申请号：US17407021

申请日：2021-08-19

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Lars Hovda ,  Dan Mueller ,  James C. Stevens ,  Amal Phadke

IPC: E21B33/14 ,  E21B33/13 ,  E21B37/00 ,  E21B41/00

CPC classification number: E21B33/14 ,  E21B33/13 ,  E21B37/00 ,  E21B41/0078

Abstract: The invention relates to a cementing tool (1) and method for setting a cement plug. Instead of the conventional “balanced plug”, the technique involves pumping cement whilst pulling and rotating the tool. The cementing tool (1) includes nozzles (9) for jetting cement which are located in a relatively narrow region (8) of the tool and a larger diameter choke region (5) proximal of the nozzles (9). The end of the tool (11) is closed off and tapered. The tool is passed down the well to a location where it is desired to set a plug, then cement is injected whilst rotating and withdrawing the tool. The jets of cement help displace existing fluid in the well thereby reducing mixing of the existing fluid with the cement, The choke region (5) increases the flow energy, whilst the tapered end (11) helps prevent disruption to the cement as the tool is withdrawn. The choke region (5) may be expandable to allow the tool to pass through a cased part of the well and then set a plug in an under-reamed open hole part of the well.

公开(公告)号：US12116860B1

公开(公告)日：2024-10-15

申请号：US18217752

申请日：2023-07-03

Applicant: EXERO WELL INTEGRITY

Inventor： Alexandra Elizabeth Cedola ,  Elizabeth Ann Sones ,  Matthew David Hudson ,  Cheve Arlyn Meyer

IPC: E21B33/14 ,  C04B18/04 ,  C04B28/00 ,  C09K8/40 ,  C09K8/46 ,  E21B21/06

CPC classification number: E21B33/14 ,  C04B18/049 ,  C04B28/006 ,  C09K8/40 ,  C09K8/46 ,  E21B21/066

Abstract: Systems, methods, and apparatus for producing wellbore fluids using drill cuttings, geopolymers, and/or mine tailings, and compositions relating to the same are disclosed. The drill cuttings, geopolymers, and/or mine tailings may be used to create appropriate wellbore fluids to be used in wellbore fluid supply systems, such as spacer fluids, lead barrier fluids, tail barrier fluids. In one embodiment, the wellbore fluids result in one or more substantially impermeable barrier sheaths within the wellbore, which barrier sheaths may be cementitious or non-cementitious.

公开(公告)号：US12110765B2

公开(公告)日：2024-10-08

申请号：US17248065

申请日：2021-01-07

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Rune Woie

IPC: E21B37/02 ,  E21B33/14 ,  E21B34/06 ,  E21B47/005 ,  E21B47/117

CPC classification number: E21B37/02 ,  E21B33/14 ,  E21B47/005 ,  E21B47/117 ,  E21B34/06 ,  E21B2200/04

Abstract: The invention relates to the cleaning of a wellbore including a reservoir liner 3 and an upper portion 2 of the wellbore, by running in only one string into the wellbore and performing a reservoir liner cementing operation, displacing the cement 7 with completion fluid 8, followed using the same string to circulate mud in the upper completion, perform an inflow test on the reservoir liner 3, wash the upper completion and displace it to completion fluid 8.

公开(公告)号：US20240309747A1

公开(公告)日：2024-09-19

申请号：US18676058

申请日：2024-05-28

Applicant: Schlumberger Technology Corporation

Inventor： Oney Erge ,  Ginger Vinyard Hildebrand ,  Wayne Kotovsky

IPC: E21B47/005 ,  E21B33/12 ,  E21B33/13 ,  E21B33/14 ,  E21B47/047 ,  E21B47/06

CPC classification number: E21B47/005 ,  E21B33/13 ,  E21B33/14 ,  E21B47/047 ,  E21B47/06 ,  E21B33/12

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：US20240301765A1

公开(公告)日：2024-09-12

申请号：US18181496

申请日：2023-03-09

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Ibrahim A. OBAIDI ,  Nawaf S. SHAMMARI ,  Abdulrahman K. ASSIRI

IPC: E21B33/14 ,  E21B31/18 ,  E21B47/10

CPC classification number: E21B33/14 ,  E21B31/18 ,  E21B47/10

Abstract: A method includes conveying a sacrificial tool into a wellbore on a conveyance, the wellbore penetrating one or more subterranean formations and the sacrificial tool including an overshot fishing tool, a tubing operatively coupled to and extending from the overshot fishing tool, and a liner hanger arranged at an upper end of the tubing. An uphole end of a downhole tool is received within with the overshot fishing tool, the downhole tool being stuck in the wellbore adjacent the one or more subterranean formations. The uphole end of the downhole tool is sealingly engaged, and a cement is subsequently circulated through the sacrificial tool and the downhole tool and discharged into an annulus defined between the downhole tool and an inner wall of the wellbore.

公开(公告)号：US12078024B2

公开(公告)日：2024-09-03

申请号：US17784559

申请日：2020-12-10

Applicant: SUBSEA ENGENUITY LIMITED

Inventor： Michael Graham Morgan

IPC: E21B33/05 ,  E21B33/038 ,  E21B33/14 ,  E21B43/11

CPC classification number: E21B33/05 ,  E21B33/038 ,  E21B33/143 ,  E21B43/11

Abstract: A tool (1) for cementing an annulus in a subsea oil or gas well, and methods for using the tool are provided. The tool includes a safety module (2) providing fluid communication between an umbilical and a perforation and circulation module (4) mounted below it. The safety module (2) includes a mechanical lock for connection to a well head. The perforation and circulation module includes upper and lower seals (6, 8) for sealing to the inner surface of a casing; an upper perforating device (14) mounted between the seals; a lower perforating device (16) mounted below the lower seal (8); and supply (S) and return (R) fluid flow paths for circulating fluid from the safety module (2). A diversion means (20) is provided in the supply fluid flow path, operable to redirect fluid supplied to the supply fluid flow path to a space defined between the upper and lower seals (6, 8).

公开(公告)号：US12077709B2

公开(公告)日：2024-09-03

申请号：US18073650

申请日：2022-12-02

Applicant: Schlumberger Technology Corporation

Inventor： Bernardo Engelke ,  Lynn Foster ,  Valerie Lafitte

IPC: C09K8/467 ,  C04B14/04 ,  C04B14/10 ,  C04B14/22 ,  C04B18/08 ,  C04B18/14 ,  C04B18/24 ,  C04B28/04 ,  C04B111/00 ,  E21B33/14

CPC classification number: C09K8/467 ,  C04B14/045 ,  C04B14/047 ,  C04B14/104 ,  C04B14/106 ,  C04B14/22 ,  C04B18/08 ,  C04B18/141 ,  C04B18/248 ,  C04B28/04 ,  E21B33/14 ,  C04B2111/00146 ,  C04B2201/20 ,  C04B2201/50

Abstract: Pumpable slurry compositions comprising at least one aluminosilicate additive and optional pozzolanic cement additives and methods for improving development of compressive strengths in the pumpable cement slurry compositions are disclosed herein. The methods utilize one or more pumpable cement slurry compositions comprising at least one cement component, water, at least one first aluminosilicate additive, at least one optional second aluminosilicate additive, and one or more optional pozzolanic additives, wherein the at least one first aluminosilicate additive has an amorphous phase of greater than about 50% and a weight ratio of silica oxide to aluminum oxide of about 1.0 to about 2.5, and the at least one optional second aluminosilicate additive has a weight ratio of silica oxide to aluminum oxide of about 1.7 to about 3.3.