CN114215509A - Fish-touch instrument for well logging in petroleum engineering - Google Patents
Fish-touch instrument for well logging in petroleum engineering Download PDFInfo
- Publication number
- CN114215509A CN114215509A CN202111640284.7A CN202111640284A CN114215509A CN 114215509 A CN114215509 A CN 114215509A CN 202111640284 A CN202111640284 A CN 202111640284A CN 114215509 A CN114215509 A CN 114215509A
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- fluxgate
- framework
- fish
- logging
- resistant shell
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- 239000003208 petroleum Substances 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 19
- 241000251468 Actinopterygii Species 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005358 geomagnetic field Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- E21B47/09—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
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a fish touch instrument for well logging in petroleum engineering, and relates to the technical field of well logging in petroleum engineering. The magnetic flux sensor comprises a protective cap, an upper connector assembly, a circuit framework, a power supply module, a signal processing board, a servo circuit board, an upper fluxgate, a lower fluxgate, a probe framework, a compression-resistant shell and a lower plug, wherein one end of the compression-resistant shell is connected with the upper connector assembly through a thread, the other end of the compression-resistant shell is connected with the lower plug through a thread, one end of the upper connector assembly is connected with the circuit framework through a bolt, and one end of the upper connector assembly, which is far away from the circuit framework, is connected with the protective cap through a thread. According to the invention, through the integral design of the device, when the device is in blockage, the device can know whether the blockage is caused by the top of a falling object in the well or the collapse of a well hole, and can better provide technical support for fishing work.
Description
Technical Field
The invention relates to the technical field of petroleum engineering logging, in particular to a fish touch instrument for petroleum engineering logging.
Background
In the field of petroleum engineering logging, a logging fish is called a fish, wherein the fish is an underground falling object generated during logging or drilling or other open hole construction, in order to clear the position of the underground falling object and provide a basis for fishing construction, a certain logging instrument is usually used for logging the position of the underground falling object, the logging fish is called the fish (the underground falling object is compared with the fish), however, when the existing device is used for fishing, a test point of the logging instrument needs to touch the top of the underground falling object, generally, wells with the underground falling object are complex in well conditions, the top of the underground falling object is not touched, the top of the underground falling object can not be judged to be in contact with the blocking point, or the top of the underground falling object is caused by well collapse, and technical support can not be provided for engineering fishing.
Disclosure of Invention
The invention aims to provide a fish touching instrument for well logging in petroleum engineering, which aims to solve the existing problems: the situation that a resistance point is located at the top of an underground falling object or resistance is caused by borehole collapse cannot be judged, and technical support cannot be provided for engineering fishing.
In order to achieve the purpose, the invention provides the following technical scheme: a fish touch instrument for well logging in petroleum engineering comprises a protective cap, an upper joint assembly, a line framework, a power module, a signal processing board, a servo circuit board, an upper fluxgate, a lower fluxgate, a probe framework, a compression-resistant shell and a lower plug, wherein one end of the compression-resistant shell is in threaded connection with the upper joint assembly, the other end of the compression-resistant shell is in threaded connection with the lower plug, one end of the upper joint assembly is in bolted connection with the line framework, one end of the upper joint assembly, which is far away from the line framework, is in threaded connection with the protective cap, the inner side of the line framework is fixedly connected with the power module, the signal processing board and the servo circuit board from left to right through bolts, the power module and the servo circuit board are positioned at two sides of the signal processing board, the upper fluxgate and the lower fluxgate are fixed inside the left end and the right end of the probe framework through bolts, one end of the line framework, which is far away from the upper joint assembly, is in bolted connection with the probe framework, the power module, the servo circuit board, the upper fluxgate and the lower fluxgate are electrically connected with the signal processing board.
Preferably, when the outer diameter of the pressure-resistant shell is larger than 60mm, the circuit assembly is fixed on the inner side of the pressure-resistant shell through a locking ring, and the locking ring is made of aluminum alloy material.
Preferably, the outer diameter of the pressure-resistant housing is less than 60mm, and the line assembly is fixed at the upper joint assembly.
Preferably, the upper fluxgate and the lower fluxgate are on a coaxial line, and a distance between the upper fluxgate and the lower fluxgate is not less than 600 mm.
Preferably, the distance between the lower fluxgate and the lowest end of the outer surface of the lower plug is not more than 600 mm.
Preferably, the distance between the upper fluxgate and the lower part of the power module after the circuit assembly is formed is not less than 600 mm.
Preferably, the screw, nut and the jackscrew material of connecting usefulness in the fish fumbling appearance are no magnetism copper product, the material of top connection assembly, resistance to compression shell and lower end cap is TC4 titanium steel, circuit skeleton and probe skeleton are the aluminum alloy material and make.
Compared with the prior art, the invention has the beneficial effects that:
through the integral design of the device, the petroleum underground logging device can know whether the petroleum underground logging device is caused by the top of underground falling objects or the collapse of a well hole when encountering resistance, can better provide technical support for fishing work, improves the efficiency of the underground fishing work, and has the advantages of scientific and reasonable structure, good use effect, low manufacturing cost and suitability for popularization and use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic diagram of a signal processing board of the present invention;
FIG. 3 is a schematic block diagram of the fish touch instrument of the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic view of the locking ring structure.
In the figure: 1. a protective cap; 2. an upper joint assembly; 3. a circuit framework; 4. a power supply module; 5. a signal processing board; 6. a servo circuit board; 7. an upper fluxgate; 8. a lower fluxgate; 9. a probe skeleton; 10. a compression resistant housing; 11. and (7) a lower plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Please refer to fig. 1-5:
a fish touch instrument for oil engineering well logging comprises a protective cap 1, an upper joint assembly 2, a line framework 3, a power module 4, a signal processing board 5, a servo circuit board 6, an upper fluxgate 7, a lower fluxgate 8, a probe framework 9, a pressure-resistant shell 10 and a lower plug 11, wherein one end of the pressure-resistant shell 10 is in threaded connection with the upper joint assembly 2, the other end of the pressure-resistant shell 10 is in threaded connection with the lower plug 11, one end of the upper joint assembly 2 is in bolted connection with the line framework 3, one end of the upper joint assembly 2, which is far away from the line framework 3, is in threaded connection with the protective cap 1, the power module 4, the signal processing board 5 and the servo circuit board 6 are fixedly connected to the inner side of the line framework 3 from left to right sequentially through bolts, the power module 4 and the servo circuit board 6 are positioned on two sides of the signal processing board 5, the upper fluxgate 7 and the lower fluxgate 8 are fixed inside the left end and the right end of the probe framework 9 through bolts, one end of the circuit framework 3, which is far away from the upper joint assembly 2, is connected with the probe framework 9 through a bolt, and the power module 4, the servo circuit board 6, the upper fluxgate 7 and the lower fluxgate 8 are electrically connected with the signal processing board 5.
When the outer diameter of the pressure-resistant shell 10 is larger than 60mm, the circuit assembly is fixed on the inner side of the pressure-resistant shell 10 through a locking ring, the circuit assembly refers to two parts of a circuit framework 3 and a probe framework 9 which are connected together, the locking ring is an annular cushion ring (see figure 5), a plurality of annular gaskets are respectively fixed on the outer parts of the circuit framework 3 and the probe framework 9 through bolts, the circuit framework 3 and the probe framework 9 are prevented from shaking in the pressure-resistant shell 10, the locking ring is made of aluminum alloy materials, and the aluminum materials are nonmagnetic and cannot generate magnetic interference on the device during working;
the outer diameter of the pressure-resistant shell 10 is less than 60mm, one end of a circuit framework 3 of a circuit assembly (the circuit framework 3 and the probe framework 9 are connected together to form the circuit assembly) is fixed at the upper connector assembly 2 through a bolt, and an annular locking ring does not need to be added outside the circuit framework 3 and the probe framework 9;
the upper fluxgate 7 and the lower fluxgate 8 are positioned on a coaxial line, and a distance between the upper fluxgate 7 and the lower fluxgate 8 is not less than 600 mm;
the distance between the lower fluxgate 8 and the lowest end outside the lower plug 11 is not more than 40 mm;
after the circuit assembly is installed, the distance between the upper fluxgate 7 and the lower part of the power module 4 is not less than 600 mm;
the materials of screws, nuts and jackscrews for connection in the fish touch instrument are all non-magnetic copper products, the materials of the upper joint assembly 2, the compression-resistant shell 10 and the lower plug 11 are all TC4 titanium steel, and the TC4 titanium steel is non-magnetic, and has good mechanical property and strong compression resistance and wear resistance; the circuit framework 3 and the probe framework 9 are made of aluminum alloy materials, the aluminum alloy materials are non-magnetic, the non-magnetic materials can prevent the whole device from magnetic interference during working, and the detection precision can be improved;
when the whole device works, signals detected by the upper fluxgate 7 and the lower fluxgate 8 are sent to the signal processing board 5 for processing, and after the formed signals reach the signal processing board 5, the signal processing board 5 outputs two signals.
One is the signal measured by the upper fluxgate 7 or the lower fluxgate 8 to determine whether the instrument is jammed.
The other is the difference of the signals measured by the upper fluxgate 7 or the lower fluxgate 8 to determine whether the falling object is detected.
Since the upper fluxgate 7 or the lower fluxgate 8 are installed on the same axis, if there is no object falling in the well, the measured geomagnetic signals are equal, and the difference is a certain value.
If there is an underground falling object, the underground falling object will cause the change of the geomagnetic field, the lower fluxgate 8 will detect the change of the geomagnetic field first, and the difference will also change.
The downward detection depth of the lower fluxgate 8 is 600mm, when the fish head meets a resistance, if the difference value of the upper fluxgate 7 or the lower fluxgate 8 is not changed, the fish head is caused by the collapse of the borehole, and if the difference value of the upper fluxgate 7 or the lower fluxgate 8 is changed, the fish head is within 600 mm.
Please refer to fig. 2:
the signal IN/MX of the lower fluxgate 8 is divided into two paths, one path is sent to the IC through R and R, C and IC form a low-pass filter, the filtered signal is sent to the IC through R for power amplification and then is output through a protective resistor R, C has the filtering function, the output signal is OUT/MX for monitoring whether the instrument is IN resistance, the other path is sent to the homodromous input end of the IC/A through R, the signal IN/MX of the upper fluxgate 7 is sent to the reverse input end of the IC/A through R, C and C are connected IN the same level and then are bridged at two input ends of the IC/A for filtering, the IC/A is an instrument amplifier, the output of the IC/A is sent to the IC/B through R and R, the IC/B is an operational amplifier, the R, C and IC/B form a low-pass filter, the filtered signal is sent to the IC through R for power amplification, the protection resistor R is used for resisting the pressure and outputting through the shell 10, the C8 plays a filtering role, the output signal is OUT/MX and is used for judging whether underground falling objects exist at the lower part of the instrument, the upper fluxgate 7 and the lower fluxgate 8 are both existing mature electronic components and are magnetic field measuring elements which can be used for current measurement, and the precision is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a fish touching instrument for oil engineering well logging which characterized in that: comprises a protective cap (1), an upper joint assembly (2), a circuit framework (3), a power module (4), a signal processing board (5), a servo circuit board (6), an upper fluxgate (7), a lower fluxgate (8), a probe framework (9), a compression-resistant shell (10) and a lower plug (11), wherein one end of the compression-resistant shell (10) is connected with the upper joint assembly (2) through a thread, the other end of the compression-resistant shell (10) is connected with the lower plug (11) through a thread, one end of the upper joint assembly (2) is connected with the circuit framework (3) through a bolt, one end of the upper joint assembly (2) far away from the circuit framework (3) is connected with the protective cap (1) through a thread, the inner side of the circuit framework (3) is fixedly connected with the power module (4), the signal processing board (5) and the servo circuit board (6) from left to right through a bolt, the power module (4) and the servo circuit board (6) are located on two sides of the signal processing board (5), the upper fluxgate (7) and the lower fluxgate (8) are fixed to the left and right inner portions of the probe framework (9) through bolts, one end, away from the upper joint assembly (2), of the circuit framework (3) is connected with the probe framework (9) through bolts, and the power module (4), the servo circuit board (6), the upper fluxgate (7) and the lower fluxgate (8) are all electrically connected with the signal processing board (5).
2. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: when the outer diameter of the pressure-resistant shell (10) is larger than 60mm, the circuit assembly is fixed on the inner side of the pressure-resistant shell (10) through a lock ring, and the lock ring is made of aluminum alloy material.
3. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: the outer diameter of the pressure-resistant shell (10) is smaller than 60mm, and the line assembly is fixed to the upper connector assembly (2).
4. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: the upper fluxgate (7) and the lower fluxgate (8) are positioned on a coaxial line, and the distance between the upper fluxgate (7) and the lower fluxgate (8) is not less than 600 mm.
5. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: the distance between the lower fluxgate (8) and the lowest end of the outer surface of the lower plug (11) is not more than 40 mm.
6. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: the distance between the upper fluxgate (7) and the lower part of the power module (4) is not less than 600mm after the circuit assembly is formed.
7. The fish-touching instrument for logging in petroleum engineering according to claim 1, wherein: the upper joint assembly (2), the pressure-resistant shell (10) and the lower plug (11) are made of TC4 titanium steel, and the line framework (3) and the probe framework (9) are made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111640284.7A CN114215509A (en) | 2021-12-30 | 2021-12-30 | Fish-touch instrument for well logging in petroleum engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111640284.7A CN114215509A (en) | 2021-12-30 | 2021-12-30 | Fish-touch instrument for well logging in petroleum engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114215509A true CN114215509A (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111640284.7A Pending CN114215509A (en) | 2021-12-30 | 2021-12-30 | Fish-touch instrument for well logging in petroleum engineering |
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| CN (1) | CN114215509A (en) |
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