GB1071416A - Method of and apparatus for logging boreholes - Google Patents
Method of and apparatus for logging boreholesInfo
- Publication number
- GB1071416A GB1071416A GB1167/63A GB116763A GB1071416A GB 1071416 A GB1071416 A GB 1071416A GB 1167/63 A GB1167/63 A GB 1167/63A GB 116763 A GB116763 A GB 116763A GB 1071416 A GB1071416 A GB 1071416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sonde
- borehole
- logging
- gamma
- acoustic
- 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
- 238000000034 method Methods 0.000 title abstract 7
- 230000015572 biosynthetic process Effects 0.000 abstract 5
- 238000005755 formation reaction Methods 0.000 abstract 5
- 238000011835 investigation Methods 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000005855 radiation Effects 0.000 abstract 2
- 230000002269 spontaneous effect Effects 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000004445 quantitative analysis Methods 0.000 abstract 1
- 230000000191 radiation effect Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
Classifications
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
1,071,416. Borehole logging. BRITISH PETROLEUM CO. Ltd. Nov. 20, 1963 [Jan. 10, 1963], No. 1167/63. Headings G1A and G1N. A method of logging a borehole comprises running a sonde along a borehole containing conductive fluid and concurrently investigating the formation past which the sonde moves by a guard electrode technique to provide a resistivity log of each of a number of investigation depths of penetration into the formation, by a caliper technique to estimate the mudcake thickness on the borehole wall and the borehole diameter, by a spontaneous potential technique to determine the resistivity of the conducting fluid in the formation and by further means to determine the porosity of the formation surrounding the borehole, the information of all techniques being passed to a position exterior to the sonde in the form of a successive group of multiplexed signals, and a sonde for carrying out the method comprises the necessary logging apparatus together with circuitry for distributing A. C. power from an external source to the investigating means and a time multiplex telemetering system for conveying successive groups of signals related to sampled investigation data to a position exterior of the sonde. The porosity may be determined by a neutron gamma, neutron neutron, gamma gamma or an acoustic velocity device and the sonde may include apparatus responsive to natural gamma radiation and apparatus for measuring continuously mud resistivity and temperature. The concurrently obtained data can be used to give a quantitative analysis of hydrocarbons in the porous formations. Sonde (11), Fig. 1 (not shown) carries electrodes (AA<SP>1</SP>) (BB<SP>1</SP>) (CC<SP>1</SP>) and (X) separated by insulating spacers (13) acoustic transmitters (14) and receivers (16), a radiation source (18), and a lead shield (19) to protect the sonde from radiation effects. The electronic circuitry is housed in a cartridge (20) Fig. 2 (not shown) which fits in the sonde and includes a natural gamma photo-multiplier tube and crystal in portion (21), telemeter circuitry in portion (22), switching circuits in portion (23) a neutron gamma crystal and photo-multiplier in portion (24) and electronic equipment associated with the acoustic equipment in portion (25). The telemetering system is described in Specification 908, 467 and the investigation is controlled by a 12 pulse clock unit which produces output pulses on two additional terminals for each clock pulse through five bi-stable units and 6 gates (G1-G6), Fig. 4b (not shown), transformer (TR2) applying A. C. energy and transformer (TR1) serving as a means to measure the electrode current. The sequential switching of the electrode circuits by the five bi-stable units and the connection of the measuring circuit to the telemeter equipment is described with reference to Fig. 8 (not shown). Resistivity logging is described with reference to Specification 1, 038, 452 and the acoustic logging with reference to Specification 1, 071, 414. The acoustic receiver units (16) are connected to receiver units (30-33) Fig. 6 (not shown) and received first signals serve to stop integrators (I1), (I3), (I5), (I7), which are initiated by an output from the transmitter energizing unit. The first signals from the mud to mud face interface are followed by reflections from mudcake to borehole wall and these two signals start and stop integrators (I2), (I4), (I6), (I8) to measure the distance between the interfaces, the outputs from both sets of integrators being stored in stores (S1-S8) for subsequent sampling by the telemetering system. The spontaneous potential on an electrode located for example 15 feet above the probe is passed through a high impedance amplifier and gated to the telemetering equipment.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1167/63A GB1071416A (en) | 1963-01-10 | 1963-01-10 | Method of and apparatus for logging boreholes |
FR958433A FR1377932A (en) | 1963-01-10 | 1963-12-24 | Method and device for coring boreholes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1167/63A GB1071416A (en) | 1963-01-10 | 1963-01-10 | Method of and apparatus for logging boreholes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1071416A true GB1071416A (en) | 1967-06-07 |
Family
ID=9717335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1167/63A Expired GB1071416A (en) | 1963-01-10 | 1963-01-10 | Method of and apparatus for logging boreholes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1071416A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4348671A (en) * | 1980-11-28 | 1982-09-07 | Texaco Inc. | Dual spectra well logging system |
WO2005015265A1 (en) * | 2003-08-07 | 2005-02-17 | Services Petroliers Schlumberger | Integrated logging tool for borehole |
CN101881159A (en) * | 2009-05-07 | 2010-11-10 | 北京吉艾博然科技有限公司 | Lithology and density logging instrument |
-
1963
- 1963-01-10 GB GB1167/63A patent/GB1071416A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4348671A (en) * | 1980-11-28 | 1982-09-07 | Texaco Inc. | Dual spectra well logging system |
WO2005015265A1 (en) * | 2003-08-07 | 2005-02-17 | Services Petroliers Schlumberger | Integrated logging tool for borehole |
CN100399055C (en) * | 2003-08-07 | 2008-07-02 | 普拉德研究及开发股份有限公司 | Integrated logging tool for borehole |
EA010781B1 (en) * | 2003-08-07 | 2008-10-30 | Шлюмбергер Текнолоджи Б.В. | Integrated logging tool for borehole |
CN101881159A (en) * | 2009-05-07 | 2010-11-10 | 北京吉艾博然科技有限公司 | Lithology and density logging instrument |
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