Title: Modular electrode tool for improved hydraulic fracture diagnostics

Abstract

Systems and methods for assessing physical properties of a geological formation are disclosed. The systems and methods may use electrodes that include two conductive portions separated by an isolation gap positioned along a casing in a wellbore in the formation. The electrodes may be sequentially energized to provide excitation stimulus into the formation while the remaining, non-energized electrodes may substantially simultaneously receive excitation responses to the excitation stimulus from the formation. The excitation responses may be assessed to determine one or more physical properties of fractures in the formation.

Inventors:

Gabelmann, Jeffrey; Oerkfitz, Mark Allen; Hosbach, Thomas David; Sharma, Mukul M.; Yilmaz, Ali; Torres-Verdin, Carlos

Issue Date:

2020-03-03

Research Org.:

Univ. of Texas, Austin, TX (United States); E-Spectrum Technologies, San Antonio, TX (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1632636

Patent Number(s):

10578763

Application Number:

15/818,911

Assignee:

The Board of Regents of the University of Texas System (Austin, TX); E-Spectrum Technologies (San Antonio, TX)

Patent Classifications (CPCs):

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B43/267 - reinforcing fractures by propping {

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V3/34 - Transmitting data to recording or processing apparatus

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B49/00 - Testing the nature of borehole walls

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V3/26 - operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B41/0085 - {Adaptations of electric power generating means for use in boreholes
E21B17/1021 - {with articulated arms or arcuate springs

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V3/20 - operating with propagation of electric current

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B47/01 - Devices for supporting measuring instruments on a drill pipe, rod or wireline
E21B17/042 - threaded {

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DOE Contract Number:  

SC0015986

Resource Type:

Patent

Resource Relation:

Patent File Date: 11/21/2017

Country of Publication:

United States

Language:

English

Subject:

58 GEOSCIENCES