公开(公告)号：US20180210108A1

公开(公告)日：2018-07-26

申请号：US15935787

申请日：2018-03-26

Applicant: CARBO CERAMICS INC. ,  SANDIA CORPORATION

Inventor： David F. ALDRIDGE ,  Lewis BARTEL

IPC: G01V3/30 ,  G01V99/00 ,  G01V3/26 ,  G01V3/38

Abstract: Born Scattering Inversion (BSI) systems and methods are disclosed. A BSI system may be incorporated in a well system for accessing natural gas, oil and geothermal reserves in a geologic formation beneath the surface of the Earth. The BSI system may be used to generate a three-dimensional image of a proppant-filled hydraulically-induced fracture in the geologic formation. The BSI system may include computing equipment and sensors for measuring electromagnetic fields in the vicinity of the fracture before and after the fracture is generated, adjusting the parameters of a first Born approximation model of a scattered component of the surface electromagnetic fields using the measured electromagnetic fields, and generating the image of the proppant-filled fracture using the adjusted parameters.

公开(公告)号：US20170226411A1

公开(公告)日：2017-08-10

申请号：US15498266

申请日：2017-04-26

Applicant: CARBO CERAMICS INC.

Inventor： Chad CANNAN ,  Lewis BARTEL ,  Todd ROPER

IPC: C09K8/80 ,  G01V3/26 ,  E21B47/09 ,  E21B43/26 ,  E21B43/267

CPC classification number: C09K8/805 ,  C23C18/1619 ,  C23C18/1639 ,  C23C18/1889 ,  C23C18/34 ,  C23C18/40 ,  E21B43/267 ,  G01V3/26

Abstract: Electrically conductive proppant and methods for energizing and detecting the electrically conductive proppant in a single wellbore are disclosed. The methods can include performing numerical simulations solving Maxwell's equations of electromagnetism for electric and/or magnetic fields to determine temporal characteristics of an optimum input wave form and a recording sensor location to be used in a wellbore that extends into a subterranean formation having a fracture that is at least partially filled with proppant and an electrically conductive material, wherein the numerical simulations are based upon an earth model determined from geophysical logs and/or geological information. The method can also include electrically energizing a casing of the wellbore, measuring three dimensional (x, y, and z) components of electric and/or magnetic field responses in the wellbore, and determining a location of the electrically conductive proppant through comparison of the electric and/or magnetic field responses to the numerical simulations.

公开(公告)号：US20220056333A1

公开(公告)日：2022-02-24

申请号：US17517503

申请日：2021-11-02

Applicant: CARBO CERAMICS INC. ,  National Technology & Engineering Solutions of Sandia, LLC

Inventor： Chad CANNAN ,  Lewis BARTEL ,  Terrence PALISCH ,  David ALDRIDGE

IPC: C09K8/80 ,  E21B43/267 ,  E21B47/092 ,  E21B43/25 ,  E21B47/00 ,  C23C14/06 ,  C23C14/35 ,  E21B43/26

Abstract: Electrically conductive proppants and methods for detecting, locating, and characterizing same are provided. The electrically conductive proppant can include a substantially uniform coating of an electrically conductive material having a thickness of at least 500 nm. The method can include injecting a hydraulic fluid into a wellbore extending into a subterranean formation at a rate and pressure sufficient to open a fracture therein, injecting into the fracture a fluid containing the electrically conductive proppant, electrically energizing the earth at or near the fracture, and measuring three dimensional (x, y, and z) components of electric and magnetic field responses at a surface of the earth or in an adjacent wellbore.

公开(公告)号：US20170235019A1

公开(公告)日：2017-08-17

申请号：US15463839

申请日：2017-03-20

Applicant: CARBO CERAMICS INC.

Inventor： Lewis BARTEL

IPC: G01V99/00 ,  E21B43/267 ,  G01V3/38 ,  E21B49/00 ,  G01V3/20 ,  E21B47/00 ,  E21B43/26

CPC classification number: G01V99/005 ,  E21B43/26 ,  E21B43/267 ,  E21B47/00 ,  E21B47/0002 ,  E21B47/122 ,  E21B49/00 ,  G01V3/20 ,  G01V3/26 ,  G01V3/30 ,  G01V3/38 ,  G01V2210/67 ,  G01V2210/671 ,  G01V2210/679

Abstract: Systems and methods for generating a three-dimensional image of a proppant-filled hydraulically-induced fracture in a geologic formation are provided. The image may be generated by capturing electromagnetic fields generated or scattered by the proppant-filled fracture, removing dispersion and/or an attenuation effects from the captured electromagnetic fields, and generating the image based on the dispersion and/or attenuation corrected fields. Removing the dispersion and/or attenuation effects may include back propagating the captured electromagnetic fields in the time domain to a source location. The image may be generated based on locations at which the back propagated fields constructively interfere or may be generated based on a model of the fracture defined using the back propagated fields.