GB1151804A - Transmission of Well Logging Signals. - Google Patents
Transmission of Well Logging Signals.Info
- Publication number
- GB1151804A GB1151804A GB2315/67A GB231567A GB1151804A GB 1151804 A GB1151804 A GB 1151804A GB 2315/67 A GB2315/67 A GB 2315/67A GB 231567 A GB231567 A GB 231567A GB 1151804 A GB1151804 A GB 1151804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse
- binary
- neutrons
- radiation
- pulses
- 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
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 238000005755 formation reaction Methods 0.000 abstract 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229910052778 Plutonium Inorganic materials 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000009518 sodium iodide Nutrition 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- 229910052722 tritium Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01V3/34—Transmitting data to recording or processing apparatus; Recording data
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/045—Transmitting data to recording or processing apparatus; Recording data
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,151,804. Well logging. MOBIL OIL CORP. Jan.16, 1967, No.2315/67. Heading G1A. In an arrangement for investigating radiation in a well-logging system measured parameter values are transmitted to a remote point by discrete signals e.g. digitally, or by binary code. A sonde may include a neutron source 34 Fig.2 of plutonium beryllium or pulsed neutrons and parameters of secondary radiation may be measured by for example a scintillation crystal and photomultiplier 37-38, the resulting pulse heights or pulse durations being encoded by gating the output of an oscillator 84 to a binary scaler, the output from which is applied to one or more transmission lines 153-156 in sequence in response to an initiating pulse from a multi-vibrator 104 and under the control of a clock source 100. Arrangements are included to block the input path whilst the circuit is so acting, and the binary scaler is reset by a pulse from a multi-vibrator 92. At the surface, amplifying and separating circuits 55, connected one to each cable, insert the coded value in a register or analyzer wherein pulses of different radiation energy levels may be stored on for example magnetic cores, and counted, and may be readout for the production of a spectrum and/or may be recorded via a digital-to-analogue converter and a pulse-height analyzer which selects analogue pulses exceeding a selected threshold and width. The invention may be applied to measuring decay characteristics of the formations or elements therein, i.e. the decay of thermal neutrons or radioactive isotopes by the emission of gamma rays, the slope of a thermal neutron decay curve indicating the thermal neutron capture crosssection of formation elements. The formation is irradiated by pulses of fast neutrons for this last test, and detection may be made at predetermined time intervals after each pulse. Time intervals also may be transmitted in binary form. A Deuterium-tritium source of fast neutrons is exemplified, and it is pulsed by a blocking oscillator and a phantastron, the arrangement may be used to determine the presence of sodium and thus salt water, and a sodium iodide scintillating crystal detector may be used in conjunction with a photomultiplier. The uphole analyzer may respond only to radiation detected in a predetermined energy range, which may be adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2315/67A GB1151804A (en) | 1967-01-16 | 1967-01-16 | Transmission of Well Logging Signals. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2315/67A GB1151804A (en) | 1967-01-16 | 1967-01-16 | Transmission of Well Logging Signals. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1151804A true GB1151804A (en) | 1969-05-14 |
Family
ID=9737398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2315/67A Expired GB1151804A (en) | 1967-01-16 | 1967-01-16 | Transmission of Well Logging Signals. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1151804A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224209A (en) * | 2013-06-14 | 2014-12-24 | 株式会社东芝 | Electromagnetic wave signal processor and electromagnetic wave detector |
| CN107524436A (en) * | 2017-07-03 | 2017-12-29 | 中国石油大学(北京) | One kind crosses sleeve pipe underground survey cable multiplexer and its method of work |
-
1967
- 1967-01-16 GB GB2315/67A patent/GB1151804A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224209A (en) * | 2013-06-14 | 2014-12-24 | 株式会社东芝 | Electromagnetic wave signal processor and electromagnetic wave detector |
| EP2814241A3 (en) * | 2013-06-14 | 2015-09-02 | Kabushiki Kaisha Toshiba | Electromagnetic wave signal processor and electromagnetic wave detector |
| US9257156B2 (en) | 2013-06-14 | 2016-02-09 | Kabushiki Kaisha Toshiba | Electromagnetic wave signal processor and electromagnetic wave detector |
| CN107524436A (en) * | 2017-07-03 | 2017-12-29 | 中国石油大学(北京) | One kind crosses sleeve pipe underground survey cable multiplexer and its method of work |
| CN107524436B (en) * | 2017-07-03 | 2023-09-08 | 中国石油大学(北京) | Multiplexing device for underground measurement cable through casing and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |