GB839486A - Method of and apparatus for locating anomalies in a well bore - Google Patents
Method of and apparatus for locating anomalies in a well boreInfo
- Publication number
- GB839486A GB839486A GB19061/57A GB1906157A GB839486A GB 839486 A GB839486 A GB 839486A GB 19061/57 A GB19061/57 A GB 19061/57A GB 1906157 A GB1906157 A GB 1906157A GB 839486 A GB839486 A GB 839486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- well bore
- output
- casing
- indication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002184 metal Substances 0.000 abstract 1
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
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
- E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
839,486. Electric tests. HOUSTON OIL FIELD MATERIAL CO. Inc. June 17, 1957, No. 19061/57. Class 37. Apparatus for locating metal objects in a well bore (Fig. 1) consists of a coil 16 forming part of the tuning circuit of an oscillator 20, mounted on a highly. permeable core 14 and situated in the field of two magnets 10 and 12, and is enclosed in a non-magnetic casing 8 and may be separated therefrom if desired by an electrostatic shield 26. The magnetic field is such that it is sufticient to saturate the core. The oscillator is fed with a D.C. current by means of cable 9 which also serves to suspend the casing. At the surface, the output of oscillator 20 is inductively coupled to a receiver and is then mixed with the output of another oscillator and the radio frequency is filtered away to give a heterodyne beat output of about 50-1000 cycles. This frequency is measured and any departure from the norm as the apparatus is lowered into the well bore gives the required indication. A cathode-ray oscilloscope may be used for indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19061/57A GB839486A (en) | 1957-06-17 | 1957-06-17 | Method of and apparatus for locating anomalies in a well bore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19061/57A GB839486A (en) | 1957-06-17 | 1957-06-17 | Method of and apparatus for locating anomalies in a well bore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB839486A true GB839486A (en) | 1960-06-29 |
Family
ID=10123110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19061/57A Expired GB839486A (en) | 1957-06-17 | 1957-06-17 | Method of and apparatus for locating anomalies in a well bore |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB839486A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867183A (en) * | 2012-12-18 | 2014-06-18 | 中国石油化工股份有限公司 | Transient electromagnetic method through casing water exploration tester |
| US11225848B2 (en) | 2020-03-20 | 2022-01-18 | DynaEnergetics Europe GmbH | Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly |
| US11408279B2 (en) | 2018-08-21 | 2022-08-09 | DynaEnergetics Europe GmbH | System and method for navigating a wellbore and determining location in a wellbore |
| US11434713B2 (en) | 2018-05-31 | 2022-09-06 | DynaEnergetics Europe GmbH | Wellhead launcher system and method |
| US11591885B2 (en) | 2018-05-31 | 2023-02-28 | DynaEnergetics Europe GmbH | Selective untethered drone string for downhole oil and gas wellbore operations |
| US11661824B2 (en) | 2018-05-31 | 2023-05-30 | DynaEnergetics Europe GmbH | Autonomous perforating drone |
| US11808098B2 (en) | 2018-08-20 | 2023-11-07 | DynaEnergetics Europe GmbH | System and method to deploy and control autonomous devices |
| US11834920B2 (en) | 2019-07-19 | 2023-12-05 | DynaEnergetics Europe GmbH | Ballistically actuated wellbore tool |
| US11905823B2 (en) | 2018-05-31 | 2024-02-20 | DynaEnergetics Europe GmbH | Systems and methods for marker inclusion in a wellbore |
| US12000267B2 (en) | 2021-09-24 | 2024-06-04 | DynaEnergetics Europe GmbH | Communication and location system for an autonomous frack system |
| US12031417B2 (en) | 2022-12-01 | 2024-07-09 | DynaEnergetics Europe GmbH | Untethered drone string for downhole oil and gas wellbore operations |
-
1957
- 1957-06-17 GB GB19061/57A patent/GB839486A/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867183A (en) * | 2012-12-18 | 2014-06-18 | 中国石油化工股份有限公司 | Transient electromagnetic method through casing water exploration tester |
| US11434713B2 (en) | 2018-05-31 | 2022-09-06 | DynaEnergetics Europe GmbH | Wellhead launcher system and method |
| US11591885B2 (en) | 2018-05-31 | 2023-02-28 | DynaEnergetics Europe GmbH | Selective untethered drone string for downhole oil and gas wellbore operations |
| US11661824B2 (en) | 2018-05-31 | 2023-05-30 | DynaEnergetics Europe GmbH | Autonomous perforating drone |
| US11905823B2 (en) | 2018-05-31 | 2024-02-20 | DynaEnergetics Europe GmbH | Systems and methods for marker inclusion in a wellbore |
| US11808098B2 (en) | 2018-08-20 | 2023-11-07 | DynaEnergetics Europe GmbH | System and method to deploy and control autonomous devices |
| US11408279B2 (en) | 2018-08-21 | 2022-08-09 | DynaEnergetics Europe GmbH | System and method for navigating a wellbore and determining location in a wellbore |
| US11834920B2 (en) | 2019-07-19 | 2023-12-05 | DynaEnergetics Europe GmbH | Ballistically actuated wellbore tool |
| US11225848B2 (en) | 2020-03-20 | 2022-01-18 | DynaEnergetics Europe GmbH | Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly |
| US11814915B2 (en) | 2020-03-20 | 2023-11-14 | DynaEnergetics Europe GmbH | Adapter assembly for use with a wellbore tool string |
| US12000267B2 (en) | 2021-09-24 | 2024-06-04 | DynaEnergetics Europe GmbH | Communication and location system for an autonomous frack system |
| US12031417B2 (en) | 2022-12-01 | 2024-07-09 | DynaEnergetics Europe GmbH | Untethered drone string for downhole oil and gas wellbore operations |
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