BR9803484A - Process and apparatus for measuring the resistivity of a soil formation. - Google Patents
Process and apparatus for measuring the resistivity of a soil formation.Info
- Publication number
- BR9803484A BR9803484A BR9803484A BR9803484A BR9803484A BR 9803484 A BR9803484 A BR 9803484A BR 9803484 A BR9803484 A BR 9803484A BR 9803484 A BR9803484 A BR 9803484A BR 9803484 A BR9803484 A BR 9803484A
- Authority
- BR
- Brazil
- Prior art keywords
- formation
- resistivity
- signal
- telemetry
- receiver
- Prior art date
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PROCESSO E APARELHO PARA MEDIçãO DA RESISTIVIDADE DE UMA FORMAçãO DO SOLO. O processo e aparelho da invenção determina a resistividade de formação de solo em profundidade estendidas na formação pelo uso de telemetria de sinais de transmissão para medição da resistividade da formação. A telemetria dos sinais de transmissão conduzem dados de medição a partir de sensores abaixo do buraco através da formação para um receptor acima do buraco. A transmissão do sinal é por meio de telemetria de indução. No receptor, o sinal é demodulado para obtenção dos dados de medição transmitidos. Durante a detecção do sinal no receptor, a amplitude do sinal é também extraída e é utilizada para determinar a resistividade da formação. Em acréscimo, mudanças na amplitude do sinal são também utilizadas para indicar limites de formação para determinação da localidade de poço durante perfuração direcional.PROCESS AND APPARATUS FOR MEASURING THE RESISTIVITY OF A GROUND FORMATION. The process and apparatus of the invention determines the resistivity of soil formation in depth extended in the formation by the use of transmission signal telemetry to measure the resistivity of the formation. Telemetry of transmission signals conduct measurement data from sensors below the hole through formation to a receiver above the hole. Signal transmission is by means of induction telemetry. At the receiver, the signal is demodulated to obtain the transmitted measurement data. During signal detection at the receiver, the signal amplitude is also extracted and is used to determine the resistivity of the formation. In addition, changes in signal amplitude are also used to indicate formation limits for determining the location of a well during directional drilling.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5955497P | 1997-09-19 | 1997-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9803484A true BR9803484A (en) | 1999-11-03 |
Family
ID=22023731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9803484A BR9803484A (en) | 1997-09-19 | 1998-09-17 | Process and apparatus for measuring the resistivity of a soil formation. |
Country Status (2)
Country | Link |
---|---|
BR (1) | BR9803484A (en) |
CA (1) | CA2247636A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114112736B (en) * | 2020-08-28 | 2023-11-14 | 宝山钢铁股份有限公司 | Online measuring device and method for determining fracture elongation of low-carbon steel cold-rolled sheet |
CN113216929B (en) * | 2021-04-29 | 2023-12-22 | 中国科学院武汉岩土力学研究所 | Method and equipment for measuring rock and soil parameters while drilling based on electromagnetic geophysical prospecting |
-
1998
- 1998-09-17 CA CA 2247636 patent/CA2247636A1/en not_active Abandoned
- 1998-09-17 BR BR9803484A patent/BR9803484A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2247636A1 (en) | 1999-03-19 |
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Legal Events
Date | Code | Title | Description |
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B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE A 7A E 8A ANUIDADES. |
|
B08H | Application fees: decision cancelled |
Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1868 DE 24/10/2006 POR TER SIDO APRESENTADA PAPELETA DE ESCLARECIMENTO. |
|
B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE A 8A ANUIDADE. |
|
B08K | Maintenance of archiving: application remains archived as no request for restauration (art. 87) has been received. |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1877 DE 26/12/2006. |