BR112012023454A2 - método para atenuar correntes de dispersão - Google Patents
método para atenuar correntes de dispersãoInfo
- Publication number
- BR112012023454A2 BR112012023454A2 BR112012023454A BR112012023454A BR112012023454A2 BR 112012023454 A2 BR112012023454 A2 BR 112012023454A2 BR 112012023454 A BR112012023454 A BR 112012023454A BR 112012023454 A BR112012023454 A BR 112012023454A BR 112012023454 A2 BR112012023454 A2 BR 112012023454A2
- Authority
- BR
- Brazil
- Prior art keywords
- current
- dispersion
- attenuating
- reducing
- relates
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current
- G01V3/24—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current using ac
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
método para atenuar correntes de dispersão. a presente invenção refere-se a um aparelho e método para reduzir uma dispersão de corrente elétrica em uma ferramenta de perfilagem, particularmente se refere a reduzir a dispersão de corrente elétrica ao alterar uma diferença de fase entre um elemento de polarização e uma corrente elétrica produzida por uma primeira fonte de força. o aparelho pode incluir um ou mais eletrodos de medida para transmitir a corrente elétrica para uma formação, um medidor de corrente, pelo menos uma corrente eletrodo de retorno, um controlador, e um elemento de polarização. o método inclui ajustar uma diferença de ângulo de fase entre a corrente que deixa o eletrodo de medida e um sinal de polarização aplicado no elemento de polarização de uma segunda fonte de força para reduzir a dispersão de corrente do aparelho.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31518710P | 2010-03-18 | 2010-03-18 | |
| US13/047,503 US8405397B2 (en) | 2010-03-18 | 2011-03-14 | Method for mitigating leakage currents |
| PCT/US2011/028510 WO2011115985A1 (en) | 2010-03-18 | 2011-03-15 | Method for mitigating leakage currents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112012023454A2 true BR112012023454A2 (pt) | 2016-05-24 |
| BR112012023454B1 BR112012023454B1 (pt) | 2019-12-17 |
Family
ID=44646707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112012023454A BR112012023454B1 (pt) | 2010-03-18 | 2011-03-15 | método e aparelho para conduzir operações de perfilagem |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8405397B2 (pt) |
| BR (1) | BR112012023454B1 (pt) |
| GB (1) | GB2493657B (pt) |
| NO (1) | NO344521B1 (pt) |
| WO (1) | WO2011115985A1 (pt) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8972193B2 (en) * | 2011-04-26 | 2015-03-03 | Baker Hughes Incorporated | Formation resistivity imager with reduced leakage to mandrel |
| CN103015977B (zh) * | 2012-12-11 | 2015-06-03 | 武汉科技大学 | 一种溜井全景视频扫描装置 |
| US9121963B2 (en) | 2013-12-05 | 2015-09-01 | Baker Hughes Incorporated | Dual mode balancing in OBM resistivity imaging |
| WO2016057311A1 (en) * | 2014-10-10 | 2016-04-14 | Halliburton Energy Services, Inc. | Improved resistivity measurement using a galvanic tool |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528495A (en) * | 1993-09-01 | 1996-06-18 | Schlumberger Technology Corporation | Cadmium zinc telluride borehole detector |
| EP1619848A1 (en) * | 2004-07-21 | 2006-01-25 | Evolium S.A.S. | Radio frequency transmitter and method of operating a radio frequency transmitter |
| US7804302B2 (en) | 2005-08-10 | 2010-09-28 | Baker Hughes Incorporated | Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools |
| WO2007055784A2 (en) * | 2005-11-04 | 2007-05-18 | Halliburton Energy Services, Inc. | Oil based mud imaging tool that measures voltage phase and amplitude |
| US7665544B2 (en) | 2006-12-05 | 2010-02-23 | Baker Hughes Incorporated | Method to improve downhole instruments |
| US7896073B2 (en) * | 2008-06-10 | 2011-03-01 | Baker Hughes Incorporated | Apparatus for formation resistivity imaging in wells with oil-based drilling fluids |
| US20090302854A1 (en) | 2008-06-10 | 2009-12-10 | Baker Hughes Incorporated | Apparatus for Formation Resistivity Imaging in Wells with Oil-Based Drilling Fluids |
| US9709692B2 (en) | 2008-10-17 | 2017-07-18 | Baker Hughes Incorporated | Method and apparatus for borehole wall resistivity imaging with full circumferential coverage |
-
2011
- 2011-03-14 US US13/047,503 patent/US8405397B2/en active Active
- 2011-03-15 BR BR112012023454A patent/BR112012023454B1/pt active IP Right Grant
- 2011-03-15 GB GB201218367A patent/GB2493657B/en active Active
- 2011-03-15 WO PCT/US2011/028510 patent/WO2011115985A1/en active Application Filing
-
2012
- 2012-09-04 NO NO20120992A patent/NO344521B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB2493657A (en) | 2013-02-13 |
| GB201218367D0 (en) | 2012-11-28 |
| BR112012023454B1 (pt) | 2019-12-17 |
| WO2011115985A1 (en) | 2011-09-22 |
| NO344521B1 (no) | 2020-01-20 |
| US20110227580A1 (en) | 2011-09-22 |
| GB2493657B (en) | 2015-05-20 |
| US8405397B2 (en) | 2013-03-26 |
| NO20120992A1 (no) | 2012-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
| B06T | Formal requirements before examination [chapter 6.20 patent gazette] | ||
| B15K | Others concerning applications: alteration of classification |
Free format text: AS CLASSIFICACOES ANTERIORES ERAM: E21B 47/00 , E21B 43/00 Ipc: G01V 3/24 (1980.01) |
|
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/03/2011, OBSERVADAS AS CONDICOES LEGAIS. |