FR2398875A1 - Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottom - Google Patents
Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottomInfo
- Publication number
- FR2398875A1 FR2398875A1 FR7723518A FR7723518A FR2398875A1 FR 2398875 A1 FR2398875 A1 FR 2398875A1 FR 7723518 A FR7723518 A FR 7723518A FR 7723518 A FR7723518 A FR 7723518A FR 2398875 A1 FR2398875 A1 FR 2398875A1
- Authority
- FR
- France
- Prior art keywords
- rotary valve
- frame
- well bottom
- core sampling
- conditions
- 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.)
- Granted
Links
- 238000005070 sampling Methods 0.000 title abstract 2
- 230000001419 dependent effect Effects 0.000 title 1
- 238000005553 drilling Methods 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 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
- 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
- E21B47/14—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 using acoustic waves
- E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- 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
- E21B47/12—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
- E21B47/14—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 using acoustic waves
- E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/20—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
-
- 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
- E21B47/12—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
- E21B47/14—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 using acoustic waves
- E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/24—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by positive mud pulses using a flow restricting valve within the drill pipe
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The bit allows core sampling while drilling, having a frame for fitting in the drill column, through which drilling fluid passes. A rotary valve is mounted on the frame, part at least of the drilling fluid flowing through it, and a shaft rotates in the frame. A motor (13) in the frame (11) has a drive shaft, and an operating characteristic determined by a condition measured at the well bottom by the tool. A drive mechanism transmits torque from the shaft to the valve (18), but prevents torque transmission in the reverse direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7723518A FR2398875A1 (en) | 1977-07-29 | 1977-07-29 | Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7723518A FR2398875A1 (en) | 1977-07-29 | 1977-07-29 | Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottom |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2398875A1 true FR2398875A1 (en) | 1979-02-23 |
FR2398875B1 FR2398875B1 (en) | 1984-04-20 |
Family
ID=9194040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7723518A Granted FR2398875A1 (en) | 1977-07-29 | 1977-07-29 | Core sampling drill bit - has rotary valve driven by motor dependent on conditions at well bottom |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2398875A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2138842A1 (en) * | 1971-05-20 | 1973-01-05 | Mobil Oil Corp | |
FR2141985A1 (en) * | 1971-06-16 | 1973-01-26 | Mobil Oil Corp | |
FR2303937A1 (en) * | 1975-03-12 | 1976-10-08 | Mobil Oil | Logging-while-drilling tool - with turbine like signalling valve, and fluid conditioner upstream of valve to spin fluid |
-
1977
- 1977-07-29 FR FR7723518A patent/FR2398875A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2138842A1 (en) * | 1971-05-20 | 1973-01-05 | Mobil Oil Corp | |
FR2141985A1 (en) * | 1971-06-16 | 1973-01-26 | Mobil Oil Corp | |
FR2303937A1 (en) * | 1975-03-12 | 1976-10-08 | Mobil Oil | Logging-while-drilling tool - with turbine like signalling valve, and fluid conditioner upstream of valve to spin fluid |
Non-Patent Citations (2)
Title |
---|
EXBK/54 * |
EXBK/59 * |
Also Published As
Publication number | Publication date |
---|---|
FR2398875B1 (en) | 1984-04-20 |
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