公开(公告)号：US20230194741A1

公开(公告)日：2023-06-22

申请号：US18060084

申请日：2022-11-30

Applicant: ExxonMobil Upstream Research Company

Inventor： Sudeep Singh ,  Xinlong Liu ,  Simona O. Costin ,  Christopher T. Reaume ,  Taylor K. Fink

IPC: G01V1/32 ,  G06N5/022 ,  G01V1/28

CPC classification number: G01V1/325 ,  G06N5/022 ,  G01V1/288

Abstract: A method for classifying a microseismic event, including: analyzing microseismic event files through a combination of two fault tolerant machine learning pipelines, an acoustic machine learning pipeline and a visual machine learning pipeline; and generating a classification prediction for the microseismic event files by combining predictions from the acoustic machine learning pipeline and the visual machine learning pipeline.

公开(公告)号：US20230176242A1

公开(公告)日：2023-06-08

申请号：US17922739

申请日：2021-04-19

Applicant: ExxonMobil Upstream Research Company

Inventor： Peng Xu ,  Huseyin DENLI ,  Stijn De Waele ,  Mary K. Johns

IPC: G01V1/30 ,  G01V3/38 ,  G01V99/00 ,  G06N3/044 ,  G06N3/08 ,  G06N3/045

CPC classification number: G01V1/302 ,  G01V3/38 ,  G01V99/005 ,  G06N3/044 ,  G06N3/08 ,  G06N3/045 ,  G01V2210/64

Abstract: A computer-implemented method for analyzing geophysical data is disclosed. Interpretation of geophysical data, such as seismic data, can be performed in multiple stages, such as at an information extraction stage and an information analysis stage. Typically, the information analysis stage is performed by geologists or interpreters, which may be laborious and inconsistent. The disclosed method includes using an information extractor that extracts information indicative of geo-features in a subsurface and an inference engine that analyzes the information indicative of geo-features in a subsurface to generate an output, with the information extractor and the inference engine being integrated and acting in combination. For example, the information extractor may generate summaries of the geo-features or answers to questions. In this way, the information extractor and the inference engine in combination may act synergistically, such as in the context of reasoning, natural language processing, and the outputs generated.

公开(公告)号：US11662501B2

公开(公告)日：2023-05-30

申请号：US16354684

申请日：2019-03-15

Applicant: ExxonMobil Upstream Research Company

Inventor： Guo-Shi Li ,  Hao Huang ,  Colin J. Lyttle ,  Matthias Imhof ,  Sha Miao

IPC: G01V99/00 ,  G01V1/32 ,  G06F17/14 ,  G01V1/34

CPC classification number: G01V99/005 ,  G01V1/325 ,  G01V1/345 ,  G06F17/142 ,  G01V2210/642

Abstract: Geologic modeling methods and systems disclosed herein employ fault face parameterization to constrain and improve the transformation of a faulted physical space geologic model into an unfaulted depositional space geologic model. An illustrative embodiment includes: associating a seismic image with each face of at least one fault in a subsurface region; determining a correspondence map between the seismic images for said at least one fault; parameterizing the faces using the correspondence map to match parameter value assignments for corresponding portions of the faces; creating a displacement map that draws together matching parameter values to align the corresponding portions of the faces; applying the displacement map to the geologic model to create a design space model; modifying the design space model; applying the displacement map in reverse to the modified design space model to obtain a modified geologic model; and outputting the modified geologic model.

公开(公告)号：US20230151289A1

公开(公告)日：2023-05-18

申请号：US18051676

申请日：2022-11-01

Applicant: ExxonMobil Upstream Research Company

Inventor： Timothy J. NEDWED ,  Lin ZHAO ,  Sam AMINFARD

IPC: C10L3/10 ,  C12M1/107

CPC classification number: C10L3/10 ,  C12M21/04

Abstract: Methods include providing a natural gas stream; directing a first fraction of the natural gas stream to a bioreactor including a propagating culture of hydrocarbon degrading microbes; directing a second fraction of the gas stream to a local power generator and converting the natural gas stream to electricity and heat; using a dynamic control system to balance of the gas stream to the first fraction and the second fraction based on one or more of the availability of electricity from an electricity grid and the price of electricity from the electricity grid; powering, at least in part, the bioreactor with the electricity generated by the local power generator; and harvesting the hydrocarbon degrading microbes from the bioreactor as a biomass. Related systems are also provided.

公开(公告)号：US20230147476A1

公开(公告)日：2023-05-11

申请号：US18045656

申请日：2022-10-11

Applicant: ExxonMobil Upstream Research Company

Inventor： Brent D. WHEELOCK ,  Peter A. GORDON ,  Limin SONG ,  Kenneth W. DESMOND ,  Yibing ZHANG

IPC: G01V1/50 ,  E21B49/00 ,  E21B47/26 ,  G01V1/46 ,  G01V1/137

CPC classification number: G01V1/50 ,  E21B49/00 ,  E21B47/26 ,  G01V1/46 ,  G01V1/137 ,  G01V2210/646 ,  E21B43/26

Abstract: Methods and systems for measuring cluster efficiency for stages of wellbores are provided herein. One method includes selecting a frequency band for generating broadband tube waves within the fluid column of the wellbore and generating the broadband tube waves within the fluid column of the wellbore using a pressure pulse generator that is hydraulically coupled to the wellbore. The method also includes recording data corresponding to the broadband tube waves and reflected broadband tube waves using pressure receivers that are hydraulically coupled to the wellbore. The pressure receivers are arranged into arrays with two or more pressure receivers in each array. The data recorded by the pressure receivers relate to characteristics of reflectors (including perforation cluster/fracture interfaces) within the wellbore. The method further includes processing the recorded data using interferometry and performing full waveform inversion(s) on the processed data to determine frequency-dependent, complex-valued reflection coefficients at each perforation cluster/fracture interface.

公开(公告)号：US20230134440A1

公开(公告)日：2023-05-04

申请号：US18047383

申请日：2022-10-18

Applicant: ExxonMobil Upstream Research Company

Inventor： Kendal DECKER ,  Dragan STOJKOVIC ,  Lee J. HALL

IPC: C09K8/80

Abstract: Proppant particulates like sand are commonly used in hydraulic fracturing operations to maintain one or more fractures in an opened state following the release of hydraulic pressure. Fracturing fluids and methods of hydraulic fracturing may also use proppant particulates composed of resin-coated petroleum coke (referred to as resin-coated petroleum coke proppant particulates). In some instances, the resin-coated petroleum coke proppant particulates have a particle density of equal to or less than about 1.7 grams per cubic centimeter and better resistance to creating fines when exposed to uniaxial stress.

公开(公告)号：US20230119075A1

公开(公告)日：2023-04-20

申请号：US18045994

申请日：2022-10-12

Applicant: ExxonMobil Upstream Research Company

Inventor： Lee J. HALL ,  Dragan STOJKOVIC

IPC: E21B43/267 ,  E21B43/119 ,  C09K8/80

Abstract: Methods for completing hydrocarbon wells using variable rate fracturing are provided herein. One method includes positioning a perforation device within a tubular conduit of a downhole tubular, where the downhole tubular extends within a wellbore, and where the wellbore extends within a subsurface region, as well as perforating the downhole tubular using the perforation device to define perforations within the downhole tubular. The method also includes pumping a slurry including fracturing fluid and a lightweight proppant into the tubular conduit according to a variable pumping rate schedule to fracture zones of the subsurface region that are proximate to the perforations, forming corresponding fractures within the subsurface region. The method further includes flowing the slurry into the fractures, via the perforations, to prop the fractures with the lightweight proppant, where the lightweight proppant includes granules formed from a polyolefin, petroleum coke, and/or a polyaromatic hydrocarbon resin.

公开(公告)号：US20230092478A1

公开(公告)日：2023-03-23

申请号：US17931221

申请日：2022-09-12

Applicant: ExxonMobil Upstream Research Company

Inventor： Gaoxiang WU ,  Jamey A. FENSKE ,  Chih-Hsiang KUO ,  Michael BELOTA

IPC: G01N27/80 ,  G01N33/207

Abstract: A device and method for weld root hardening determination compensated for variations in distance between sensor and sample are disclosed. A sensor is used to determine hardness of a weld for weld fabrication quality control. Because of irregular weld protrusion geometry, there may be variations in the tip of the sensor and the surface, resulting in inconsistent measurements. To compensate, one or both of a positional compensation or a software compensation are performed. Positional compensation mechanically moves the tip of the sensor to within a predetermined range of the surface. Software compensation may at least partly compensate for the variation by using one part of the generated sensor data (such as the 1st harmonic signal) in order to modify another part of the generated sensor data (such as the 3rd harmonic signal). In this way, the sensor determination of hardness of the weld may be less dependent on the variations.

公开(公告)号：US11609352B2

公开(公告)日：2023-03-21

申请号：US16683120

申请日：2019-11-13

Applicant: ExxonMobil Upstream Research Company

Inventor： Huseyin Denli ,  Kuang-Hung Liu

IPC: G01V1/48 ,  G06N3/08 ,  G06N3/04

Abstract: A method and system of machine learning-augmented geophysical inversion includes obtaining measured data; obtaining prior subsurface data; (a) partially training a data autoencoder with the measured data to learn a fraction of data space representations and generate a data space encoder; (b) partially training a model autoencoder with the prior subsurface data to learn a fraction of model space representations and generate a model space decoder; (c) forming an augmented forward model with the model space decoder, the data space encoder, and a physics-based forward model; (d) solving an inversion problem with the augmented forward model to generate an inversion solution; and iteratively repeating (a)-(d) until convergence of the inversion solution, wherein, for each iteration: partially training the data and model autoencoders starts with learned weights from an immediately-previous iteration; and solving the inversion problem starts with super parameters from the previous iteration.

公开(公告)号：US20230019787A1

公开(公告)日：2023-01-19

申请号：US17658856

申请日：2022-04-12

Applicant: ExxonMobil Upstream Research Company

Inventor： Michael C. Romer ,  Michael C. Tschauner ,  Christopher C. Frazier ,  Andrew D. McFadden ,  Salvador G. Vela ,  Billy-Bob K. Walker ,  Adam J. Johnson

IPC: E21B47/12 ,  E21B47/09 ,  E21B47/008 ,  E21B43/12

Abstract: A plunger lift system, as well as a method for monitoring plunger parameters within a wellbore using such a plunger lift system, are provided. The plunger lift system includes a lubricator attached to a wellhead at the surface and a plunger dimensioned to travel through the production tubing upon being released from the lubricator. The plunger lift system also includes magnetic sensor systems installed along the production tubing, where each magnetic sensor system includes a magnetic sensor for detecting the passage of the plunger as it travels through the production tubing, as well a communication device for transmitting communication signals between the magnetic sensor systems and a computing system located at the surface, where the computing system includes a processor and a non-transitory, computer-readable storage medium including computer-executable instructions that direct the processor to dynamically determine the plunger position and/or velocity based on the received communication signals.