公开(公告)号：US12084964B2

公开(公告)日：2024-09-10

申请号：US17603435

申请日：2019-06-14

Applicant: Halliburton Energy Services, Inc.

Inventor： Gregory Thomas Werkheiser ,  Zeke Shashoua

IPC: E21B47/14

CPC classification number: E21B47/14

Abstract: A system includes a tubing positionable within a wellbore and a first downhole communication device positionable to receive acoustic signals from the tubing and to transmit acoustic signals to the tubing. The system also includes a computing device in communication with the first downhole communication device and including a processor and a non-transitory computer-readable medium that includes instructions that are executable by the processor to perform operations. The operations include receiving a test message including a spectral waveform from a second downhole communication device. The operations further include determining a desired reception frequency for receiving communications from the second downhole communication device using spectral data generated from the spectral waveform. Additionally, the operations include controlling the first downhole communication device to transmit a response message to the second downhole communication device identifying the desired reception frequency.

公开(公告)号：US20240287895A1

公开(公告)日：2024-08-29

申请号：US18175290

申请日：2023-02-27

Applicant: Baker Hughes Oilfield Operations LLC

Inventor： Duncan Groves ,  John-Peter van Zelm ,  Andrew Hawthorn

IPC: E21B47/14 ,  E21B33/12

CPC classification number: E21B47/14 ,  E21B33/1208

Abstract: Systems and methods for communicating information acoustically through a plug in a temporarily or permanently abandoned well. The disclosed embodiments use an acoustically transmissive well plug, where an acoustic transmitter coupled to a measurement tool below the plug is coupled to the plug In a manner that is intended to maximize the coupling of the generated acoustic signals to the plug. These signals are then transmitted through the acoustically transmissive plug to an acoustic receiver that is coupled to the upper end of the plug. The acoustic receiver convert the acoustic signals to another form if necessary and forwards the signals to equipment at the surface of the well, or to intermediate transceivers that can relay the signals to the surface.

公开(公告)号：US11899153B2

公开(公告)日：2024-02-13

申请号：US18065694

申请日：2022-12-14

Applicant: Schlumberger Technology Corporation

Inventor： Yang Liu ,  Ralph D'Angelo ,  Smaine Zeroug ,  Sandip Bose

IPC: G01V1/44 ,  E21B47/14 ,  E21B49/00 ,  E21B47/005 ,  E21B47/00

CPC classification number: G01V1/44 ,  E21B47/00 ,  E21B47/005 ,  E21B47/14 ,  E21B49/00

Abstract: A downhole tool including at least one transmitter, a receiver array, and a controller. Each receiver element of the receiver array is configured to apply variable amplification and a variable time delay to detected acoustic waveforms, wherein the variable amplification is controlled by an amplification factor assigned to the given receiver element, and wherein the variable time delay is controlled by a time delay assigned to the given receiver element. The controller assigns a set of amplification factors and time delays to the receiver elements of the receiver array and combines signals resulting from the application of the variable amplification and the variable time delay to the detected acoustic waveforms such that sensitivity of the receiver elements of the receiver array is focused at a desired zone-of-interest in a wellbore corresponding to the set of amplification factors and time delays assigned to the receiver elements of the receiver array.

公开(公告)号：US20240018868A1

公开(公告)日：2024-01-18

申请号：US18254240

申请日：2021-11-30

Applicant: Schlumberger Technology Corporation

Inventor： Elias Temer ,  Carlos Merino

IPC: E21B49/08 ,  E21B47/06 ,  E21B43/12 ,  E21B47/14 ,  E21B33/122 ,  E21B34/06

CPC classification number: E21B49/087 ,  E21B47/06 ,  E21B43/128 ,  E21B47/14 ,  E21B33/122 ,  E21B34/06

Abstract: A well testing system and method is disclosed that reduces the surface equipment needed for well testing by providing a closed loop fluid flow path where the fluids produced during the well test are not brought to the surface for storage or flaring but instead are disposed in a downhole zone. The system and method are implemented using a simplified acoustic communications network where a hub device generates and transmits a single multiple hop query that includes multiple commands or queries directed to targeted downhole tools.

公开(公告)号：US11859488B2

公开(公告)日：2024-01-02

申请号：US16698335

申请日：2019-11-27

Applicant: BP Exploration Operating Company Limited

Inventor： Pradyumna Thiruvenkatanathan

IPC: E21B47/107 ,  E21B47/14 ,  G01V1/50 ,  G06F30/20 ,  G01V1/28 ,  G01V1/30 ,  G06F30/28 ,  G01V1/00 ,  G01V99/00 ,  G06N7/01

CPC classification number: E21B47/107 ,  E21B47/14 ,  G01V1/001 ,  G01V1/282 ,  G01V1/288 ,  G01V1/307 ,  G01V1/50 ,  G01V99/005 ,  G06F30/20 ,  G06F30/28 ,  G06N7/01 ,  E21B2200/20 ,  E21B2200/22 ,  G01V2210/21 ,  G01V2210/324

Abstract: A method of identifying inflow locations along a wellbore includes obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal includes acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

公开(公告)号：US20230417941A1

公开(公告)日：2023-12-28

申请号：US18447136

申请日：2023-08-09

Applicant: Momentum AI LLC

Inventor： Reid Daniel Thompson ,  Jeffrey Neal Rose ,  Jonathan Swanson Rose

IPC: G01V1/42 ,  G01V1/30 ,  E21B41/00 ,  E21B43/26 ,  G01V1/50 ,  E21B47/095 ,  E21B49/00 ,  E21B47/14

CPC classification number: G01V1/42 ,  G01V1/301 ,  E21B41/00 ,  E21B43/26 ,  G01V1/50 ,  E21B47/095 ,  E21B49/00 ,  E21B47/14 ,  G01V2210/646 ,  E21B2200/22 ,  E21B47/06

Abstract: System, method, and apparatus for classifying fracture quantity and quality of fracturing operation activities during hydraulic fracturing operations, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the fracking wellhead into an electrical signal; a memory configured to store the electrical signal; a converter configured to access the electrical signal from the memory and convert the electrical signal in a window of time into a current frequency domain spectrum; a machine-learning system configured to classify the current frequency domain spectrum, the machine-learning system having been trained on previous frequency domain spectra measured during previous hydraulic fracturing operations and previously classified by the machine-learning system; and a user interface configured to return a classification of the current frequency domain spectrum to an operator of the fracking wellhead.

公开(公告)号：US11808095B2

公开(公告)日：2023-11-07

申请号：US17652499

申请日：2022-02-25

Applicant: Schlumberger Technology Corporation

Inventor： Paul Leducq ,  Sebastien Isambert ,  Francois Chevillard ,  Fabio Cecconi ,  Vincent Chatelet

IPC: E21B17/10 ,  E21B47/13 ,  E21B17/02 ,  E21B47/14

CPC classification number: E21B17/1078 ,  E21B17/0285 ,  E21B47/13 ,  E21B47/14

Abstract: A centralizer operable to connect with and centralize a downhole tool within a tubular string within a wellbore and to facilitate reception of electromagnetic signals transmitted through the Earth. The centralizer has a body, a first contacting member electrically connected to the body and extending radially away from the body such that the first contacting member contacts an inner surface of the tubular string to electrically connect the tubular string to the body, and a second contacting member electrically insulated from the body and extending radially away from the body such that the second contacting member contacts the inner surface of the tubular string to centralize at least a portion of the body within the tubular string.

公开(公告)号：US20230304391A1

公开(公告)日：2023-09-28

申请号：US17936796

申请日：2022-09-29

Applicant: Halliburton Energy Services, Inc.

Inventor： Huiwen Sheng ,  Wei Shao ,  Songhua Chen

IPC: E21B47/005 ,  E21B47/135 ,  E21B47/14

CPC classification number: E21B47/005 ,  E21B47/135 ,  E21B47/14 ,  E21B2200/20 ,  E21B2200/22

Abstract: System and methods of petrophysical modeling are disclosed. Measurements of formation parameters along a planned path of a wellbore are received during a current stage of a downhole operation. A correlation coefficient between each of the formation parameters and at least one target parameter for the reservoir formation is determined based on the received measurements. Input parameters are selected from among the formation parameters for a symbolic regression model, based on the correlation coefficient calculated for each formation parameter. A symbolic regression model is trained to generate a target petrophysical model, based on the selected input parameters and the corresponding measurements received from the downhole tool. One or more properties of the formation are estimated for a subsequent stage of the downhole operation, based on the generated petrophysical model. The subsequent stage is performed along the wellbore, based on the one or more estimated properties of the reservoir formation.

公开(公告)号：US11768307B2

公开(公告)日：2023-09-26

申请号：US16815378

申请日：2020-03-11

Applicant: ConocoPhillips Company

Inventor： Ge Jin ,  Kevin Mendoza ,  Baishali Roy ,  Darryl G. Buswell

IPC: G01V1/50 ,  E21B47/14 ,  G06N3/084 ,  G06F17/18 ,  G02B6/44 ,  G06N20/00

CPC classification number: G01V1/50 ,  E21B47/14 ,  G02B6/4401 ,  G06F17/18 ,  G06N3/084 ,  G06N20/00 ,  G01V2210/646

Abstract: Various aspects described herein relate to a machine learning based detecting of fracture hits in offset monitoring wells when designing hydraulic fracturing processes for a particular well. In one example, a computer-implemented method includes receiving a set of features for a first well proximate to a second well, the second well undergoing a hydraulic fracturing process for extraction of natural resources from underground formations; inputting the set of features into a trained neural network; and providing, as output of the trained neural network, a probability of a fracture hit at a location associated with the set of features in the first well during a given completion stage of the hydraulic fracturing process in the second well.

公开(公告)号：US11713653B2

公开(公告)日：2023-08-01

申请号：US15994355

申请日：2018-05-31

Applicant: BONA DEVELOPMENTS INC.

Inventor： Paul John Feluch ,  Barry Dale Toppings

IPC: E21B41/00 ,  E21B47/14 ,  E21B43/12 ,  E21B47/26

CPC classification number: E21B41/0085 ,  E21B43/126 ,  E21B47/14 ,  E21B47/26

Abstract: A well monitor for monitoring a downhole well condition. The well monitor comprises an electrical generator mounted to a tubing in the well, the generator comprising magnets and windings movable relative to one another by a pump rod received in the tubing. The monitor comprises an energy storage device electrically coupled to the generator for storing generated electrical energy. A vibration transducer is electrically coupled to the energy storage device. The well monitor comprises a controller for selectively powering the vibration transducer to produce a signal indicative of the well condition for transmission through the tubing.