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1. 发明授权

US11591906B2 Cutting tool with porous regions 有权
公开(公告)号：US11591906B2
公开(公告)日：2023-02-28
申请号：US16813391
申请日：2020-03-09
申请人： California Institute of Technology
发明人： Christopher R. Yahnker , Mark S. Anderson , Douglas C. Hofmann , Morgan Hendry , Samad A. Firdosy , Andre M. Pate , Luis Phillipe C.F. Tosi
IPC分类号： E21B49/08 , G01N33/24 , G01N21/3563 , E21B25/00 , E21B49/00 , E21B25/02 , E21B21/00
摘要： A cutting tool with a cutting region and a connecting support region where the support region is designed to connect to an external motor assembly. The cutting tool is also has a porous region that is integrated within a portion of the tool such that as the tool cuts material the porous region can allow samples of the cut material to permeate into an internal chamber of the tool. Once in the internal chamber material samples can be analyzed in-situ for direct composition analysis.

2. 发明申请

US20230053857A1 WELLBORE PLANNER 有权
公开(公告)号：US20230053857A1
公开(公告)日：2023-02-23
申请号：US17821172
申请日：2022-08-21
申请人： Schlumberger Technology Corporation
发明人： Valerian Guillot , Ho Bun Lau , John Morrison Whyte , Florian Karpfinger
IPC分类号： E21B41/00 , E21B49/00 , E21B21/00
摘要： A downhole wellbore planner builds a fracture model of a wellbore using fracture data identified from geological information. Using the fracture model and a target wellbore location at the formation, the wellbore planner may identify or select one or more lost circulation materials (LCMs). The drilling operator may then procure the LCMs before drilling the wellbore. In this manner, the impact of a lost circulation event may be reduced by having the LCMs on site or nearby.

3. 发明授权

US11572747B1 Method and drilling system for mitigating lost circulation with basaltic particles 有权
公开(公告)号：US11572747B1
公开(公告)日：2023-02-07
申请号：US17454251
申请日：2021-11-10
申请人： SAUDI ARABIAN OIL COMPANY
发明人： Abdulaziz S. Al-Qasim , Ali A. Al-Yousef
IPC分类号： E21B21/00 , C09K8/05 , C09K8/504 , E21B43/26
摘要： A method of mitigating lost circulation in a subterranean wellbore for oil and gas includes introducing basaltic particles and a carbonated mixture to the lost circulation zone of the subterranean wellbore, contacting the basaltic particles with the carbonated mixture, dissolving at least a part of the basaltic particles with the carbonated mixture, reacting divalent cations with the carbonate anions in the carbonated mixture to produce carbonate minerals, providing stimulus to the basaltic particles and the carbonated mixture, depositing at least a part of the carbonate minerals to fractures of the lost circulation zone, monitoring the reacting and depositing; and optionally repeating one or more of the aforementioned steps. A drilling system for oil and gas extraction includes basaltic particles, a carbonated mixture, at least one stimulus generator, and a mitigation device.

4. 发明申请

US20230034895A1 Downhole Methods 有权
公开(公告)号：US20230034895A1
公开(公告)日：2023-02-02
申请号：US17934293
申请日：2022-09-22
申请人： Fluid Energy Group Ltd.
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/74 , E21B41/02 , C09K8/06 , E21B21/00 , E21B43/26 , C09K8/03 , C09K8/46 , C23F11/04 , C09K8/42 , C09K8/60 , E21B43/28 , C09K8/54 , E21B43/27 , E21B43/119 , E21B43/116 , E21B33/12
摘要： A method for the fracking or stimulation of a hydrocarbon-bearing formation, said method comprising the steps of: providing a wellbore in need of stimulation; inserting a plug in the wellbore at a predetermined location; inserting a perforating tool and a spearhead or breakdown acid into the wellbore; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for fracking or stimulation; removing the tool from the wellbore; and initiating the fracking of the perforated area using a fracking fluid. Also disclosed is a corrosion inhibiting composition for use with the acid composition.

5. 发明授权

US11566157B2 Water-based drilling fluid compositions and methods for drilling subterranean wells 有权
公开(公告)号：US11566157B2
公开(公告)日：2023-01-31
申请号：US17176449
申请日：2021-02-16
申请人： Saudi Arabian Oil Company
发明人： Vikrant Wagle , Sara Alkhalaf , Abdullah Al-Yami
IPC分类号： C09K8/04 , C09K8/12 , E21B21/00 , C09K8/508
摘要： Water-based drilling fluids may include an aqueous base fluid and a mixture of polyethylene polyamines in an amount of from 1 lbm/bbl to 20 lbm/bbl relative to the total volume of the water-based drilling fluid. The polyethylene polyamines of the mixture may have a first chemical structure H2NCH2CH2(NHCH2CH2)xNH2, where x may be an integer greater than or equal to 3. The average molecular weight of the polyethylene polyamines in the water-based drilling fluid having the first chemical structure may be from 200 g/mol to 400 g/mol. Methods for drilling a subterranean well with the water-based drilling fluids are also disclosed.

6. 发明申请

US20230011243A1 Direct Emulsion Drilling Fluid 有权
公开(公告)号：US20230011243A1
公开(公告)日：2023-01-12
申请号：US17811251
申请日：2022-07-07
申请人： Schlumberger Technology Corporation
发明人： Lynn Michelle Foster , Jeremy Smith , Dimitri M. Khramov
IPC分类号： C09K8/28 , E21B21/00
摘要： Drilling fluid mixtures are described herein that are stable oil-in-water emulsions. Also described herein are surfactant packages for stabilizing such emulsions. The surfactant packages use an alkyl ether anion comprising an alkyl portion, an anionic head group, and an ether portion between the alkyl portion and the anionic head group.

7. 发明授权

US11549339B1 Method and apparatus for cleaning and inspecting oil well drilling mud flow lines 有权
公开(公告)号：US11549339B1
公开(公告)日：2023-01-10
申请号：US17539446
申请日：2021-12-01
申请人： TRI-STATE ENVIRONMENTAL, LLC
发明人： Anthony Scott Carter
IPC分类号： E21B41/00 , E21B21/00 , B08B9/049 , B08B9/04 , F16L55/46 , E21B17/00 , F16L101/12 , G01M3/00
摘要： The present invention is directed to a method of cleaning and inspection of drilling mud carrying flow lines, each flow line having an inner surface. The method includes affixing a fitting to the flow line, the fitting having a main flow channel and a branch flow channel extending at an angle from said main flow channel. A first end portion of the fitting can have an attachment that enables connection of the fitting to the flow line at one flow line end portion. A second end portion of the fitting can have one or more doors that can be moved between opened and closed positions, the door or doors providing an opening that is not closed when the doors are in the closed position. A suction line can be connected to the branch flow channel. A cleaning tool can be guided first into the fitting and then into the flow line using a fluid carrying cable. The cleaning tool and jetting fluid can be used to clean drilling mud and debris from the inner surface of the flow line. The jetting fluid can be removed via the branch flow channel using the suction line. The cable can extend through the door opening or openings when the door or doors are in the closed position. A camera can be guided into the flow line using a camera cable wherein the camera cable extends through the door opening or openings. The cleaning tool is preferably too small to fit through the door opening.

8. 发明授权

US11549047B2 Engineered loss control slurry with improved performance 有权
公开(公告)号：US11549047B2
公开(公告)日：2023-01-10
申请号：US16993473
申请日：2020-08-14
申请人： SAUDI ARABIAN OIL COMPANY
发明人： Md Amanullah , Turki Al-Subaie
IPC分类号： C09K8/502 , C09K8/514 , C09K8/516 , E21B21/00
摘要： Modified Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a loss control material blend. The loss control material blend may include a particle component of sized particulate comprising a plurality of a mixture of untreated date seed particles and a fibrous component comprising a mixture of hard date leaflet fibers and soft date tree fibers prepared from date tree waste materials. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.

9. 发明授权

US11506595B2 Non-contact torque sensing 有权
公开(公告)号：US11506595B2
公开(公告)日：2022-11-22
申请号：US16611443
申请日：2018-12-18
申请人： Halliburton Energy Services, Inc.
发明人： Andrew D. Vos , Dale E. Jamison , Ketan C. Bhaidasna
IPC分类号： G01N19/02 , E21B21/00 , G01L3/08 , G01N33/28 , G01N33/30
摘要： A lubricity tester unit may comprise a housing, a shaft, wherein a first end of the shaft is disposed at a first end of the housing, wherein the shaft extends through housing along a central axis of the housing, and an encoder, wherein the encoder is disposed on an internal wall of the housing, wherein the shaft is disposed through a hole in the encoder, wherein the encoder is an optical encoder configured to measure angular position of the shaft. The lubricity tester unit may further comprise rotating rings, wherein the rotating rings are coupled to a second end of the shaft, a friction inducing surface, wherein the friction inducing surface is disposed around the rotating rings, a first sensor, wherein the first sensor is disposed through the housing, and a second sensor, wherein the second sensor is disposed through the housing.

10. 发明授权

US11506000B2 Downhole swivel apparatus and method 有权
公开(公告)号：US11506000B2
公开(公告)日：2022-11-22
申请号：US17240073
申请日：2021-04-26
申请人： Mako Rentals, Inc.
发明人： Kip M. Robichaux , Kenneth G. Caillouet , Terry P. Robichaux
IPC分类号： E21B7/12 , E21B17/01 , E21B17/05 , E21B21/00 , E21B33/038 , E21B33/06 , E21B33/064 , E21B33/08 , E21B41/00
摘要： What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve of the swivel.

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