CN220849645U - Rotatable downhole measurement assembly - Google Patents
Rotatable downhole measurement assembly Download PDFInfo
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- CN220849645U CN220849645U CN202322477529.XU CN202322477529U CN220849645U CN 220849645 U CN220849645 U CN 220849645U CN 202322477529 U CN202322477529 U CN 202322477529U CN 220849645 U CN220849645 U CN 220849645U
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- oil
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- hole
- measurement assembly
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- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 210000002445 nipple Anatomy 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 60
- 239000010687 lubricating oil Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 2
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 description 10
- 230000001680 brushing effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a rotatable underground measurement assembly, which comprises a main rod body of a logging instrument, wherein one end of the main rod body of the logging instrument is rotatably provided with a rotary nipple, one end of the rotary nipple is provided with a groove, a bearing is embedded in the groove, the bearing comprises an inner ring, an outer ring and balls which are rotatably arranged between the inner ring and the outer ring.
Description
Technical Field
The utility model relates to the technical field of logging instruments, in particular to a rotatable downhole measurement assembly.
Background
The logging instrument is a special geophysical prospecting instrument for measuring physical property characteristics of rock and coal beds and technical conditions of drilling in drilling, is used in the field of well drilling, can continuously scan a well wall, can also transversely scan any level, and gives technical data such as a vertical section, a horizontal section, an effective section and a deflection distance of the well shaft. The logging result can be directly displayed by a computer screen, can be also given by a plotter printer, and is flexible and convenient to use. The logging instrument can prevent the deflection of a shaft, reduce the construction period, quicken the construction progress, ensure the engineering quality, and has obvious indirect economic benefit and very obvious social benefit.
The downhole measurement assembly plays a vital role in the petroleum industry, and can provide accurate downhole parameter data to help petroleum companies monitor and control oil and gas exploration and production processes.
In order to assist in directional positioning function during measurement, a rotary nipple is added at the end part of a measuring rod, and the rotary nipple enables a tool to freely rotate in an underground environment without affecting transmission and connection of cables, so that the measuring tool is allowed to rotate and rotate underground to acquire accurate measurement data;
Most of the existing rotary pup joints are rotated by installing bearings, and the rotary pup joints mainly comprise the bearings, sealing elements and lubricating oil, but the bearings are required to be disassembled when the current bearings are lubricated, and then the lubricating oil is added into the bearings, so that the cost is high; in addition, in the use process, the quantity of lubricating oil is continuously reduced, the lubricating effect is reduced, the rotation of the rotary nipple joint is possibly caused to generate a clamping condition, and the accuracy of underground data acquisition is affected, so that a rotatable underground measurement assembly is required to be provided.
Disclosure of utility model
The utility model aims to provide a rotatable underground measurement assembly, an oil cavity is formed in an inner ring of a bearing through the design of the oil cavity and the oil brushing assembly, lubricating oil is filled into the oil cavity in advance, the oil brushing assembly is arranged in a through hole communicated with the oil cavity, the lubricating oil is thrown onto a cotton sliver in the rotating process of the inner ring of the bearing, and the cotton sliver is wiped on a ball, so that uninterrupted lubricating oil smearing is realized, the bearing is kept to be continuously lubricated, smooth working is realized, the bearing lubrication is not needed to be frequently performed manually, the problem that the clamping condition occurs in the rotation of a rotary nipple joint, and the accuracy of underground data acquisition is affected is solved, and the problem in the background technology is solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the rotatable downhole measurement assembly comprises a main rod body of the well logging instrument, one end of the main rod body of the well logging instrument is rotatably provided with a rotary nipple, one end of the rotary nipple is provided with a groove, a bearing is embedded in the groove, the bearing comprises an inner ring, an outer ring and balls arranged between the inner ring and the outer ring in a rolling manner, one end of the main rod body of the well logging instrument is provided with a first connecting column, and the end part of the first connecting column is fixedly inserted into the inner ring of the bearing in a plugging manner;
The inner ring is internally provided with an annular oil cavity, the outer wall of the inner ring is provided with a first through hole communicated with the oil cavity, the interior of the first through hole is provided with an oil brushing assembly in sealing contact with the balls, the oil brushing assembly comprises a sealing block arranged in the first through hole, the sealing block is provided with a plurality of groups of oil outlets, the interior of the oil outlets is inserted with a sleeve, and the interior of the sleeve is provided with a cotton sliver for conveying lubricating oil.
Preferably, a sealing ring is installed between the main rod body of the logging instrument and the rotary short joint, a first notch is formed in the outer wall of one end of the main rod body of the logging instrument, a second notch is formed in the outer wall of one end of the rotary short joint, and the sealing ring is clamped on the first notch and the second notch.
Preferably, an oil inlet channel communicated with the oil cavity is formed in the side edge of the inner ring, and a plug for preventing lubricating oil from leaking is inserted into the oil inlet channel in a sealing manner.
Preferably, the oil inlet channel comprises a thread groove formed in the side edge of the inner ring, a second through hole is communicated between the thread groove and the oil cavity, and a spherical clamping groove is formed in the inner wall of the second through hole.
Preferably, the plug comprises a connecting sheet, a second connecting column is arranged on one side of the connecting sheet, and a rubber ball is fixed on the outer wall of one end of the second connecting column.
Preferably, the outer wall of connection piece is provided with the external screw thread, connection piece screw thread installation is in the inside of screw thread groove, the second spliced pole is pegged graft in the inside of second through-hole, rubber ball block is in the inside of draw-in groove.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, through the design of the oil cavity and the oil brushing component, the oil cavity is formed in the inner ring of the bearing, lubricating oil is filled into the oil cavity in advance, the oil brushing component is arranged in the through hole communicated with the oil cavity, the lubricating oil is thrown onto the cotton sliver in the rotating process of the inner ring of the bearing, and the cotton sliver is wiped on the ball, so that uninterrupted lubricating oil smearing is realized, the continuous lubrication of the bearing is maintained, the smooth work is realized, the bearing is not required to be lubricated manually frequently, and the problem that the rotation of the rotary pup joint has a clamping condition and the underground data acquisition precision is influenced is solved.
Drawings
FIG. 1 is an isometric view of the present utility model;
FIG. 2 is a schematic diagram of the structure of an oil chamber, a first through hole, an oil brushing assembly and a plug according to the present utility model;
FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with the present utility model;
fig. 4 is an enlarged view of the portion B of fig. 2 according to the present utility model.
In the figure: 1. a logging tool main rod body; 2. rotating the pup joint; 3. a first connection post; 4. a groove; 5. a bearing; 6. a first notch; 7. a second notch; 8. a seal ring; 9. an oil chamber; 10. a first through hole; 11. an oil brushing assembly; 111. a sealing block; 112. an oil outlet; 113. a sleeve; 114. a cotton sliver; 12. a plug; 121. a connecting sheet; 122. a second connection post; 123. rubber balls; 13. a thread groove; 14. a second through hole; 15. a clamping groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the rotatable downhole measurement assembly comprises a main rod body 1 of the logging instrument, a rotary nipple 2 is rotatably arranged at one end of the main rod body 1 of the logging instrument, a groove 4 is formed at one end of the rotary nipple 2, a bearing 5 is embedded in the groove 4, the bearing 5 comprises an inner ring, an outer ring and balls which are arranged between the inner ring and the outer ring in a rolling manner, a supporting frame is further arranged between the inner ring and the outer ring, the balls are arranged on the supporting frame and keep the balls to stably roll, a first connecting column 3 is arranged at one end of the main rod body 1 of the logging instrument, and the end part of the first connecting column 3 is fixedly inserted into the inner ring of the bearing 5 in a plugging manner;
Downhole measurements refer to a technique for measuring and monitoring downhole parameters during oil and gas drilling and production. Through downhole measurements, various physical and engineering parameters within the wellbore may be obtained, including well depth, wellbore diameter, bottom hole temperature, pressure, flow, lithology, and the like. These data are important for decisions and operations in hydrocarbon exploration and production.
Downhole measurements may be made by various tools and equipment, including downhole sensors, logging tools, measurement instruments, and the like. These devices typically transmit measurement data to surface equipment for analysis and processing by cable or wireless communication.
The primary purpose of downhole measurements is to obtain accurate data of downhole parameters, to aid petroleum companies in assessing formation reserves, determining productivity of hydrocarbon resources, optimizing wellbore design, monitoring downhole fluid dynamics, identifying downhole problems (e.g., lost circulation, deposits, etc.), and performing control and optimization of hydrocarbon recovery processes.
The temperature index of the rotary nipple 2 is: the maximum bearing pressure of the rotary nipple 2 is 175MPa at the temperature of 25-230 ℃; the rotary nipple 2 can help a measuring tool to accurately acquire downhole parameters such as temperature, pressure, flow and the like, and is very important for monitoring and controlling oil and gas exploration and production processes.
The rotary nipple 2 is a key component in the downhole measurement assembly, and can rotate and turn the measurement tool and provide power and signal transmission to obtain accurate downhole measurement data. It plays a vital role in the petroleum industry.
The inside of inner ring has seted up annular oil pocket 9, and the inside of oil pocket 9 has added lubricating oil, and the outer wall of inner ring has seted up first through-hole 10 with oil pocket 9 intercommunication, and the brush oil subassembly 11 of ball contact is installed to the inside seal of first through-hole 10, and brush oil subassembly 11 is established to removable brush oil subassembly 11, when oil-out 112 blocks up and the lubricating oil velocity of flow that the cotton sliver 114 dirt leads to is slow, removable brush oil subassembly 11.
The oil brushing assembly 11 is used for smearing lubricating oil on the balls, the oil brushing assembly 11 comprises a sealing block 111 arranged in the first through hole 10, a plurality of groups of oil outlets 112 are formed in the sealing block 111, a sleeve 113 is inserted into the oil outlets 112, and a cotton sliver 114 used for conveying the lubricating oil is arranged in the sleeve 113.
During rotation of the inner ring of bearing 5, lubricant flows onto the tampons 114 in the brush oil assembly 11.
Install sealing ring 8 between logging instrument body of rod 1 and the rotatory nipple joint 2, first lack groove 6 has been seted up to the one end outer wall of logging instrument body of rod 1, and the second lack groove 7 has been seted up to the one end outer wall of rotatory nipple joint 2, and sealing ring 8 block is on first lack groove 6 and second lack groove 7, plays sealed effect, prevents impurity such as external dust entering device inside.
An oil inlet channel communicated with the oil cavity 9 is formed in the side edge of the inner ring, a plug 12 for preventing lubricating oil from leaking is inserted into the oil inlet channel in a sealing manner, and when the lubricating oil in the oil cavity 9 is short, the lubricating oil can be timely supplemented.
The oil inlet channel comprises a thread groove 13 formed on the side edge of the inner ring, a second through hole 14 is communicated between the thread groove 13 and the oil cavity 9, and a spherical clamping groove 15 is formed in the inner wall of the second through hole 14.
The plug 12 comprises a connecting piece 121, a second connecting column 122 is installed on one side of the connecting piece 121, and a rubber ball 123 is fixed on the outer wall of one end of the second connecting column 122.
The outer wall of connection piece 121 is provided with the external screw thread, and connection piece 121 screw thread installs in the inside of screw groove 13, and second spliced pole 122 peg graft in the inside of second through-hole 14, and rubber ball 123 block is in the inside of draw-in groove 15.
By engaging the rubber ball 123 inside the engagement groove 15, leakage of the lubricating oil from the oil inlet passage can be effectively prevented.
When in use, the rotary nipple 2 is connected with a cable and a measuring tool (other components and the connection mode between the components are common means in the prior art, and the technical personnel can connect according to professional knowledge and technology, which are not described in detail here), and the rotary nipple 2 is connected with the main rod body 1 of the logging instrument, and then the device is put into a well to start measuring work;
In the measuring process, the rotary nipple 2 rotates to adapt to the curvature and change of the underground shaft; in the rotating process, due to the action of centrifugal force, lubricating oil in the oil cavity 9 is thrown to the first through hole 10, lubricating oil is immersed on the cotton sliver 114, and the lubricating oil on the cotton sliver 114 can be smeared on the balls one by one, so that the balls are kept lubricated at all times, the abrasion of the balls is reduced, the smooth rotation of the bearing is achieved, the clamping phenomenon is avoided, and the accuracy of the measured data of the logging instrument is improved;
When the lubricating oil is required to be added, the bearing 5 is not required to be taken out, the sealing ring 8 is firstly detached, the first connecting column 3 is separated from the inner ring of the bearing 5, then the connecting sheet 121 is screwed, the plug 12 is removed, and the lubricating oil is filled into the oil cavity 9 through the oil inlet channel.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Rotatable underground measurement assembly, including logging instrument mobile jib body (1), its characterized in that: one end of the main rod body (1) of the well logging instrument is rotatably provided with a rotary nipple (2), one end of the rotary nipple (2) is provided with a groove (4), a bearing (5) is embedded in the groove (4), the bearing (5) comprises an inner ring, an outer ring and balls arranged between the inner ring and the outer ring in a rolling manner, one end of the main rod body (1) of the well logging instrument is provided with a first connecting column (3), and the end part of the first connecting column (3) is fixedly inserted into the inner ring of the bearing (5);
Annular oil pocket (9) have been seted up to the inside of inner ring, first through-hole (10) with oil pocket (9) intercommunication have been seted up to the outer wall of inner ring, brush oily subassembly (11) with ball contact are installed to the inside seal of first through-hole (10), brush oily subassembly (11) including installing sealing block (111) in first through-hole (10), multiunit oil-out (112) have been seted up on sealing block (111), peg graft in the inside of oil-out (112) has sleeve (113), the inside of sleeve (113) is provided with silver (114) that are used for carrying lubricating oil.
2. The rotatable downhole measurement assembly of claim 1, wherein: install sealing ring (8) between logging instrument mobile jib body (1) and rotatory nipple joint (2), first notch (6) have been seted up to the one end outer wall of logging instrument mobile jib body (1), second notch (7) have been seted up to the one end outer wall of rotatory nipple joint (2), sealing ring (8) block is on first notch (6) and second notch (7).
3. The rotatable downhole measurement assembly of claim 1, wherein: an oil inlet channel communicated with the oil cavity (9) is formed in the side edge of the inner ring, and a plug (12) for preventing lubricating oil from leaking is inserted into the oil inlet channel in a sealing manner.
4. A rotatable downhole measurement assembly according to claim 3, wherein: the oil inlet channel comprises a thread groove (13) formed in the side edge of the inner ring, a second through hole (14) is communicated between the thread groove (13) and the oil cavity (9), and a spherical clamping groove (15) is formed in the inner wall of the second through hole (14).
5. The rotatable downhole measurement assembly of claim 4, wherein: the plug (12) comprises a connecting sheet (121), a second connecting column (122) is arranged on one side of the connecting sheet (121), and a rubber ball (123) is fixed on the outer wall of one end of the second connecting column (122).
6. The rotatable downhole measurement assembly of claim 5, wherein: the outer wall of connection piece (121) is provided with the external screw thread, connection piece (121) screw thread installation is in the inside of screw groove (13), second spliced pole (122) are pegged graft in the inside of second through-hole (14), rubber ball (123) block is in the inside of draw-in groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322477529.XU CN220849645U (en) | 2023-09-13 | 2023-09-13 | Rotatable downhole measurement assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322477529.XU CN220849645U (en) | 2023-09-13 | 2023-09-13 | Rotatable downhole measurement assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220849645U true CN220849645U (en) | 2024-04-26 |
Family
ID=90785296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322477529.XU Active CN220849645U (en) | 2023-09-13 | 2023-09-13 | Rotatable downhole measurement assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220849645U (en) |
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2023
- 2023-09-13 CN CN202322477529.XU patent/CN220849645U/en active Active
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