CN111197483A - Ultrasonic detector for fish falling in petroleum drilling - Google Patents
Ultrasonic detector for fish falling in petroleum drilling Download PDFInfo
- Publication number
- CN111197483A CN111197483A CN201811282432.0A CN201811282432A CN111197483A CN 111197483 A CN111197483 A CN 111197483A CN 201811282432 A CN201811282432 A CN 201811282432A CN 111197483 A CN111197483 A CN 111197483A
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- ultrasonic detection
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 65
- 238000005553 drilling Methods 0.000 title claims abstract description 50
- 239000003208 petroleum Substances 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 claims abstract description 89
- 210000002445 nipple Anatomy 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 45
- 230000006698 induction Effects 0.000 claims description 41
- 239000000523 sample Substances 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 27
- 239000010985 leather Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
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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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to an ultrasonic detection device for a fish in an oil drilling well, which comprises an ultrasonic detection nipple assembly, wherein the ultrasonic detection nipple assembly is constructed to be capable of detecting the fish in the well through ultrasonic waves; the circuit control nipple assembly is arranged at the rear end of the ultrasonic detection nipple assembly and can control the ultrasonic detection nipple assembly; and the wet joint nipple assembly is arranged at the rear end of the circuit control nipple assembly and connected to the drill rod. The invention can measure the position and shape of the fish, and provides accurate data for fish salvaging operation.
Description
Technical Field
The invention relates to an ultrasonic detection device for oil drilling fish, in particular to a device for detecting oil drilling fish by utilizing an ultrasonic principle.
Background
During the exploration and drilling process of petroleum and natural gas, drilling tools with various conditions are easy to break and fall into the well, tools with special functions in the well are broken and fall into the well, various sundries on the well mouth are carelessly fallen into the well, fallen fishes with different types, sizes and materials are formed, and at the moment, the drilling operation must be stopped, and the fallen fishes are salvaged. Need survey fish top position and shape before salvaging the fish, do not have dedicated detection instrument at present, cause to salvage inefficiency, the construction cycle is long.
Disclosure of Invention
Aiming at the problems, the invention provides the ultrasonic detection device for the oil drilling fish, which not only can measure the position of the fish, but also can measure the shape of the fish, and provides accurate data for the fishing operation of the fish.
The invention provides an ultrasonic detection device for oil drilling fish, which comprises:
an ultrasonic detection sub assembly configured to enable detection of fish falling downhole by ultrasonic waves;
the circuit control nipple assembly is arranged at the rear end of the ultrasonic detection nipple assembly and can control the ultrasonic detection nipple assembly; and
the wet joint nipple assembly is arranged at the rear end of the circuit control nipple assembly and connected to the drill rod.
The invention has the further improvement that the ultrasonic detection short joint assembly comprises a detection body connected with the circuit control short joint assembly; the probe is characterized in that a probe pretreatment circuit board and a self-positioning circuit board are arranged in the probe body, and the probe pretreatment circuit board is connected with a plurality of ultrasonic probes.
The invention has the further improvement that the detection body comprises a detection column with an I-shaped section and a connecting column arranged at the rear end of the detection column; the rear end of the connecting column is connected with the circuit control nipple assembly;
wherein the ultrasonic probe is arranged at the bottom of the detection column; and a cavity is arranged in the detection column, the probe pretreatment circuit board and the self-positioning circuit board are arranged in the cavity, and the outside of the cavity is sealed by a protective cover plate.
The invention has the further improvement that a hollow structure communicated with the cavity is arranged in the connecting column, and a front end lead is arranged in the hollow structure; one end of the front-end lead is connected with the circuit control pup joint assembly, and the other end of the front-end lead is connected with the probe pretreatment circuit board and the self-positioning circuit board.
The invention is further improved in that a suspension shell is arranged outside the connecting column, a rotary sealing device is arranged on the connecting column through a bearing, and the rotary sealing device is connected with the suspension shell through a rotary sealing seat;
wherein the connecting column is rotationally connected with the suspension housing through the bearing and the rotary sealing device.
The invention is further improved in that a pressure balancing device is arranged between the induction transmission device and the rotary sealing seat.
The invention has the further improvement that the circuit control short section assembly comprises a control and data processing circuit board, the control and data processing circuit board is connected with a motor through a motor lead, and the control and data processing circuit board is connected with an induction transmission device through an induction transmission lead;
the rotating shaft of the motor is connected with the induction transmission device, and the induction transmission device is connected with the detection body.
The invention has the further improvement that the wet joint pup joint assembly comprises a cylindrical wet joint shell, the front end of the wet joint shell is connected with the circuit control pup joint assembly, and the rear end of the wet joint shell is connected with a drill rod through an upper wet joint connector;
and the wet joint shell is internally provided with a cable joint, and the cable joint is respectively connected with a logging cable and the control and data processing circuit board.
In a further development of the invention, the cable joint comprises an upper cable joint for connecting the logging cable, and a lower cable joint for connecting the upper cable joint;
and the lower cable joint is connected with the circuit control pup joint assembly through a wet joint internal lead.
A further improvement of the invention is that a shoulder is provided on the inner wall of the wet end housing, the cable lower is disposed on the shoulder, and an annular drilling fluid flow path is formed between the outer edge of the cable lower and the inner wall of the wet end housing.
Compared with the prior art, the invention has the advantages that:
according to the ultrasonic detection device for the falling fish in the petroleum drilling, disclosed by the invention, the falling fish can be measured not only in position but also in shape by utilizing the cable to be put into the underground. The fishing tool fills the blank of the tools, provides accurate data for fishing operation of the fallen fish, improves the accuracy of the fishing operation, and can greatly improve and save the fishing operation time.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic detection device for falling fish in petroleum drilling according to an embodiment of the present invention, showing an appearance structure thereof;
FIG. 2 is a schematic structural diagram of an ultrasonic detection device for oil drilling fish falling according to an embodiment of the present invention, showing a schematic sectional structure thereof;
FIG. 3 is a schematic cross-sectional view of an ultrasonic probe sub assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an external appearance of an ultrasonic detection sub assembly according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a circuit control sub assembly according to an embodiment of the present invention, showing the positional relationship of the circuit board support and the control and data processing circuit board;
FIG. 6 is a schematic structural diagram of a circuit control sub assembly according to an embodiment of the present invention, showing the structure of an inductive transfer device;
FIG. 7 is a schematic diagram of a wet joint sub assembly according to one embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
The meaning of the reference symbols in the drawings is as follows: 1. a drill pipe, 2, a wet joint short section assembly, 3, a circuit control short section assembly, 4, an ultrasonic detection short section assembly, 21, a wet joint upper joint, 22, a cable joint, 23, a cable upper joint, 24, a wet joint outer shell, 25, a cable lower joint, 301, a wet joint inner lead, 302, a circuit protection cylinder, 303, a circuit board bracket, 304, a control and data processing circuit board, 305, a control short section outer shell, 306, a stable rib plate, 307, a first high-pressure sealing plug, 308 a motor lead, 309, an induction transmission lead, 310, a motor, 311, an oil-filled short section, 312, a centralizing ring, 313, an induction transmission outer sleeve, 314, an induction transmission inner sleeve, 315, an induction transmission inner lead, 316, a balance adjustment short section, 317, a pressure balance leather bag, 318, a second high-pressure sealing plug, 401, a suspension outer shell, 402, a bearing, 403, a suspension ring, 404 and a rotary sealing seat, 405. the ultrasonic probe comprises a rotary seal, 406, a probe pretreatment circuit board, 407, a probe body, 408, an ultrasonic probe, 409, a self-positioning circuit board, 410, a protective cover plate, 411 and a front end lead.
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 schematically shows an ultrasonic detection device for a falling fish in an oil well according to an embodiment of the invention. According to the ultrasonic detection device for the oil drilling fish, the position of the fish can be measured, the shape of the fish can be measured, and accurate data are provided for fish salvaging operation.
As shown in fig. 1 and fig. 2, the ultrasonic detection device for oil drilling fish in this embodiment includes an ultrasonic detection sub assembly 4. The ultrasonic detection sub assembly 4 is configured to detect fish falling downhole by ultrasonic waves. The ultrasonic detection device for the fish falling in the petroleum drilling well further comprises a circuit control nipple assembly 3, wherein the circuit control nipple assembly 3 is arranged at the rear end of the ultrasonic detection nipple assembly 4, and can control the ultrasonic detection nipple assembly 4. The ultrasonic detection device for the fish falling in the petroleum drilling well further comprises a wet joint nipple assembly 2, and the wet joint nipple assembly 2 is connected with a drill rod 1. In this embodiment, the front end is the end facing downhole and is below during operation; the rear end is the end towards the wellhead and is located above during operation.
In the ultrasonic detection device for the fish in the petroleum drilling well according to the embodiment, the circuit control sub assembly 3 controls the ultrasonic detection sub assembly 4 to detect the fish in the well through ultrasonic waves. And the ultrasonic detection short section assembly 4 transmits the detected information such as the position, the number and the like of the fish to the circuit control short section assembly 3. Through this embodiment oil drilling fish ultrasonic detection device, for fish fishing operation provides accurate data, improved fishing operation's accuracy, can improve greatly and save fishing operation time.
In one embodiment, as shown in fig. 3 and 4, the ultrasonic probing sub assembly 4 includes a probing body 407, and the probing body 407 is connected to the circuit control sub assembly 3. A probe pretreatment circuit board 406 and a self-positioning circuit board 409 are arranged in the probe body 407, and the probe pretreatment circuit board 406 is connected with a plurality of ultrasonic probes 408.
In the ultrasonic detection device for the falling fish in the petroleum drilling according to the embodiment, the ultrasonic probes 408 are disposed at the front end of the detection body 407, and preferably five ultrasonic probes are disposed. The probe preprocessing circuit can process and transmit the fish information acquired by the ultrasonic probe 408. The self-positioning circuit board 409 can position the detection body 407, thereby determining the position of the fish.
In a preferred embodiment, the detecting body 407 includes a detecting column with an i-shaped cross section, and a connecting column disposed at the rear end of the detecting column. The rear end of the connecting column is connected with the circuit control pup joint assembly 3. In this embodiment, the ultrasonic probe 408 is disposed at the bottom of the probing column; and a cavity is arranged in the detection column, the probe pretreatment circuit board 406 and the self-positioning circuit board 409 are arranged in the cavity, and the outside of the cavity is sealed by a protective cover plate 410. Preferably, the detection column with the i-shaped cross section comprises two oval wings, the cavity is arranged on the two wings, the protection cover plate 410 is arranged outside the cavity, and the probe pretreatment circuit board 406 and the self-positioning circuit board 409 are respectively arranged inside the cavity.
In one embodiment, a hollow structure communicating with the cavity is arranged in the connecting column, and a front end lead 411 is arranged in the hollow structure; one end of the front end lead 411 is connected with the circuit control pup joint assembly 3, and the other end is connected with the probe pretreatment circuit board 406 and the self-positioning circuit board 409. The front end wire 411 is used for transmitting electric power and detected fish information.
In the oil drilling fish detection device according to the embodiment, a central hole is formed in the middle of the upper portion of the detection body 407, a second high-pressure sealing plug 318 is arranged in the central hole, a front end lead 411 is hermetically arranged in the second high-pressure sealing plug 318, and the front end lead 411 is connected with the induction inner ring transmission lead 315. The outer edge of the connecting column at the upper part of the detection body 407 is in a stepped cylinder shape, a bearing 402 and a rotary seal seat 404 are respectively installed from top to bottom, and a rotary seal 405 is installed inside the rotary seal seat 404.
In one embodiment, a hanging housing 401 is provided outside the connection post. The suspension housing 401 is a cylindrical structure that is in communication with the connection post and is capable of being rotatably connected. And a rotary sealing device is arranged on the connecting column through a bearing 402, and the rotary sealing device is connected with the suspension shell 401 through a rotary sealing seat 404. Wherein the connecting column is rotatably connected to the suspension housing 401 via the bearing 402 and the rotary seal.
In the ultrasonic detection device for the falling fish in the petroleum drilling according to the embodiment, the connecting column can rotate in the suspension housing 401. The detection body 407 can realize full coverage on the position detected underground in the rotating process, so that the fish falling information can be comprehensively detected.
In one embodiment, as shown in fig. 5 and 6, the circuit control sub assembly 3 includes a control and data processing circuit board 304, the control and data processing circuit board 304 is connected to a motor 310 through a motor wire 308, and the control and data processing circuit board 304 is connected to an induction transmission device through an induction transmission wire 309. The rotating shaft of the motor 310 is connected to the induction transmission device, and the induction transmission device is connected to the detection body 407. In the ultrasonic detection device for fish in oil drilling according to the embodiment, the motor 310 can drive the connecting column to rotate, so as to drive the whole detection body 407 to rotate. The inductive transmission device can transmit data in the rotating process.
In a preferred embodiment, the circuit control sub comprises a control sub housing 305, the control sub housing 305 being a cylindrical structure with an upper end connected to the wet end coupling housing 24. A circuit protection barrel 302 is arranged in the control nipple shell 305, and the circuit protection barrel 302 and the control nipple shell 305 are concentrically arranged. A circuit board support 303 is arranged in the circuit protection barrel 302, and a control and data processing circuit board 304 is arranged on the circuit board support 303. The control and data processing circuit board 304 is connected with the wet joint sub assembly 2 through the circuit board bracket 303, so as to be connected with a logging cable. The control and data processing circuit board 304 is provided with motor leads 308 and inductive transmission leads 309 that extend out of the cavity. Preferably, a cavity is arranged in the circuit board support 303, and the control and data processing circuit board 304 is arranged in the cavity. A first high-pressure sealing plug 307 is arranged at the end of the cavity, and the motor lead 308 and the induction transmission lead 309 both hermetically extend out through the first high-pressure sealing plug 307. The outer wall of the control nipple shell 305 is provided with a plurality of stabilizing ribs 306.
In the ultrasonic detection device for fish in oil drilling according to this embodiment, the control and data processing circuit board 304 can control the working state of the ultrasonic detection sub, and receive and process the data information of the fish detected by the ultrasonic detection sub. Through the control nipple shell 305 and the clearance between the circuit protection barrel 302 can circulate drilling fluid, the circuit protection barrel 302 can protect the control and data processing circuit from being influenced by the drilling fluid.
In a preferred embodiment, a motor 310 is disposed at the front end of the circuit protection barrel 302, and an induction transmission device is connected to a rotating shaft at the front end of the motor 310. The motor lead 308 is connected with the motor 310, and the induction transmission lead 309 is connected with the induction transmission device. The induction transmission device is connected with the ultrasonic detection short section.
In the ultrasonic detection device for fish in oil drilling according to the embodiment, the motor 310 is connected to the control and data processing circuit board 304 through a motor lead 308, and the control and data processing circuit board 304 controls the motor 310 to start and stop. The motor 310 rotates to drive the induction transmission device to rotate, so as to drive the ultrasonic detection short section to rotate. The ultrasonic detection short section realizes full-coverage scanning in the rotating process.
In a preferred embodiment, the inductive transmission device comprises an oil-filled short joint 311 in a cylindrical shape, and the oil-filled short joint 311 is connected with the circuit protection barrel 302. An induction transmission outer sleeve 313 is arranged at the upper end of the oil charging short section 311, and an induction transmission inner sleeve 314 is arranged inside the induction transmission outer sleeve 313. An induction transmission inner ring lead 315 is arranged on the induction transmission inner sleeve 314, and the induction transmission outer sleeve 313 is connected with the control and data processing circuit board 304 through the induction transmission lead 309. In this embodiment, the outer induction transmission sleeve 313 and the inner induction transmission sleeve 314 are rotatably connected, and the induction transmission lead 309 and the induction inner transmission lead are communicated during the rotation of the outer induction transmission sleeve 313 and the inner induction transmission sleeve 314.
In a preferred embodiment, a centralizing ring 312 is disposed on an outer wall of the oil-filled short section 311, the centralizing ring 312 is disposed between the oil-filled short section 311 and the control short section housing 305, and a plurality of holes are disposed on the centralizing ring 312 for circulating drilling fluid. In this embodiment, the oil-filled nipple 311 is provided with a radial through hole through which drilling fluid can freely enter to balance oil pressure. And a balance adjusting short joint 316 connected with the induction transmission inner sleeve 314 is arranged in the oil-filled short joint 311.
In a preferred embodiment, a pressure balancing device is provided between the induction transmission device and the rotary seal housing 404. The pressure balancing device comprises a pressure balancing bladder 317 wrapped outside the sensing inner ring transmission lead. One end of the pressure balance leather bag 317 is connected with the induction transmission inner sleeve 314, and the other end of the pressure balance leather bag 317 is connected with the ultrasonic detection short section assembly 4. In this embodiment, the pressure balance leather bag 317 is cylindrical and made of a non-metallic material, the texture is flexible and deformable, the upper end and the lower end of the pressure balance leather bag 317 are hermetically fixed on the upper inner wall and the lower inner wall of the oil-filled nipple 311 respectively, a small hole is formed in the oil-filled nipple 311 between the upper fixing point and the lower fixing point in the radial direction, drilling fluid can freely enter and exit, the annular space between the outer wall of the pressure balance leather bag 317 and the inner wall of the oil-filled nipple 311 is filled with the drilling.
In one embodiment, as shown in fig. 7, the wet joint sub assembly 2 comprises a cylindrical wet joint housing 24, the front end of the wet joint housing 24 is connected with the circuit control sub assembly 3, and the rear end of the wet joint housing 24 is connected with the drill pipe 1 through the wet joint upper joint 2. Wherein, a cable connector 22 is arranged in the wet joint shell 24, and the cable connector 22 is respectively connected with a logging cable and the control and data processing circuit board 304.
In a preferred embodiment. The cable connector 22 includes an upper cable connector 23 for connecting the logging cable, and a lower cable connector 25 for connecting the upper cable connector 23. Wherein, the cable lower joint 25 is connected with the circuit control sub assembly 3 through a wet joint internal lead 301.
In a preferred embodiment, a shoulder is provided on the inner wall of the wet end fitting housing 24, the cable lower fitting 25 is disposed on the shoulder, and an annular drilling fluid flow path is formed between the outer edge of the cable lower fitting 25 and the inner wall of the wet end fitting housing 24.
In the ultrasonic detection device for the fish in the petroleum drilling well according to the embodiment, the wet joint sub assembly 2 is connected with the drill rod 1 and the circuit control sub assembly 3. Wherein the interior of the wet end housing 24 is provided with a cable connector 22 comprising a cable upper connector 23 and a cable lower connector 25. Through cable joint 22 can be with the circuit control nipple joint assembly 3 and the ultrasonic detection nipple joint assembly 4 of logging cable connection front end, for the controller with the detector provide electric power. An annular drilling fluid flow passage is formed between the lower cable connector 25 and the wet connector shell 24, and drilling fluid flow is facilitated.
In the ultrasonic detection device for fish falling in oil drilling according to the embodiment, the closed space formed by the cable lower connector 25, the circuit board support 303 and the first high-pressure sealing plug 307 is an air medium normal-pressure environment. An inner cavity is formed by the circuit protection cylinder 302 and the oil-filled short joint 311, and a closed space formed by partial outlines of the inner cavity of the balance adjusting short joint 316, the inner and outer cavities of the pressure balance leather bag 317, the first high-pressure sealing plug 307, the rotary sealing seat 404 and the rotary sealing 405 is a hydraulic oil medium and keeps the same environment with the pressure of the external drilling fluid. The second high-pressure sealing plug 318 is partially contoured, the probe body 407 and the inner cavity of the protective cover 410 are formed, and the closed space formed by the partial contour of the ultrasonic probe 408 is an air medium normal-pressure environment.
According to the ultrasonic detection device for the oil drilling fish in the embodiment, when the ultrasonic detection device is actually applied, the cable is used for being lowered, so that the position of the fish can be measured, and the shape of the fish can be measured. The fishing tool fills the blank of the tools, provides accurate data for fishing operation of the fallen fish, improves the accuracy of the fishing operation, and can greatly improve and save the fishing operation time.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. An ultrasonic detection device for falling fish in petroleum drilling is characterized by comprising:
an ultrasonic detection sub assembly (4), the ultrasonic detection sub assembly (4) being configured to enable detection of fish falling downhole by ultrasonic waves;
the circuit control short section assembly (3) is arranged at the rear end of the ultrasonic detection short section assembly (4), and the circuit control short section assembly (3) can control the ultrasonic detection short section assembly (4); and
the wet joint nipple assembly (2) is arranged at the rear end of the circuit control nipple assembly (3), and the wet joint nipple assembly (2) is connected onto the drill rod (1).
2. The ultrasonic detection device for fish in petroleum drilling according to claim 1, characterized in that the ultrasonic detection sub assembly (4) comprises a detection body (407) connected with the circuit control sub assembly (3); the probe comprises a probe body (407), wherein a probe pretreatment circuit board (406) and a self-positioning circuit board (409) are arranged in the probe body (407), and the probe pretreatment circuit board (406) is connected with a plurality of ultrasonic probes (408).
3. The ultrasonic detection device for the fallen fish in the petroleum drilling as claimed in claim 2, wherein the detection body (407) comprises a detection column with an I-shaped section and a connecting column arranged at the rear end of the detection column; the rear end of the connecting column is connected with the circuit control pup joint assembly (3);
wherein the ultrasonic probe (408) is arranged at the bottom of the detection column; and a cavity is arranged in the detection column, the probe pretreatment circuit board (406) and the self-positioning circuit board (409) are arranged in the cavity, and the outside of the cavity is sealed by a protective cover plate (410).
4. The ultrasonic detection device for the fallen fish in the petroleum drilling as claimed in claim 3, wherein a hollow structure communicated with the cavity is arranged in the connecting column, and a front end lead (411) is arranged in the hollow structure; one end of the front end lead (411) is connected with the circuit control pup joint assembly (3), and the other end of the front end lead is connected with the probe pretreatment circuit board (406) and the self-positioning circuit board (409).
5. The ultrasonic detection device for oil drilling fish as claimed in claim 4, wherein a suspension housing (401) is arranged outside the connecting column, and a rotary sealing device is arranged on the connecting column through a bearing (402), and the rotary sealing device is connected with the suspension housing (401) through a rotary sealing seat (404);
wherein the connecting column is rotationally connected to the suspension housing (401) via the bearing (402) and the rotary seal.
6. The ultrasonic detection device for the fallen fish in the petroleum drilling as claimed in any one of claims 1 to 5, wherein the circuit control short joint assembly (3) comprises a control and data processing circuit board (304), the control and data processing circuit board (304) is connected with a motor (310) through a motor lead (308), and the control and data processing circuit board (304) is connected with an induction transmission device through an induction transmission lead (309);
wherein, the rotating shaft of the motor (310) is connected with the induction transmission device, and the induction transmission device is connected with the detection body (407).
7. The ultrasonic detection device for the fish in the petroleum drilling well is characterized in that a pressure balancing device is arranged between the induction transmission device and the ultrasonic detection nipple assembly (4).
8. The ultrasonic detection device for the oil drilling fish falling in the claim 7 is characterized in that the wet joint sub assembly (2) comprises a cylindrical wet joint housing (24), the front end of the wet joint housing (24) is connected with the circuit control sub assembly (3), and the rear end of the wet joint housing (24) is connected with the drill pipe (1) through a wet joint upper joint (2);
wherein a cable joint (22) is arranged in the wet joint shell (24), and the cable joint (22) is respectively connected with a logging cable and the control and data processing circuit board (304).
9. The ultrasonic oil drilling fish detection device according to claim 8, wherein the cable joint (22) comprises an upper cable joint (23) connecting the logging cable, and a lower cable joint (25) connecting the upper cable joint (23);
the lower cable joint (25) is connected with the circuit control short section assembly (3) through a wet joint internal lead (301).
10. The ultrasonic detection device for oil drilling fish as claimed in claim 9, wherein a shoulder is provided on the inner wall of the wet joint housing (24), the cable lower joint (25) is provided on the shoulder, and an annular drilling fluid flow passage is formed between the outer edge of the cable lower joint (25) and the inner wall of the wet joint housing (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811282432.0A CN111197483B (en) | 2018-10-31 | 2018-10-31 | Ultrasonic detector for fish falling in petroleum drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811282432.0A CN111197483B (en) | 2018-10-31 | 2018-10-31 | Ultrasonic detector for fish falling in petroleum drilling |
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| CN111197483A true CN111197483A (en) | 2020-05-26 |
| CN111197483B CN111197483B (en) | 2022-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647931A (en) * | 2020-12-29 | 2021-04-13 | 中国地质大学（武汉） | Underground accident detection device and method in geological drilling process |
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