CN116006105B - Roller centralizing spring spear - Google Patents
Roller centralizing spring spear Download PDFInfo
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- CN116006105B CN116006105B CN202111235765.XA CN202111235765A CN116006105B CN 116006105 B CN116006105 B CN 116006105B CN 202111235765 A CN202111235765 A CN 202111235765A CN 116006105 B CN116006105 B CN 116006105B
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- 241000234295 Musa Species 0.000 claims abstract description 23
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention relates to the technical field of snap-gauge instrument strings, in particular to a roller centralizing spring spear, which comprises a male connector, a central rod, a female connector, a left support arm, a right support arm, rollers and a conductive rod. The invention has reasonable and compact structure, can lead the roller to straighten the invention to advance in the water hole of the drilling tool, is beneficial to moving and supporting in the water hole of the drilling tool, increases the resistance of the pushing rubber plug to mud when the pump is started to circulate by arranging the pushing rubber plug, effectively increases the advancing power of the invention in the water hole of the drilling tool, is beneficial to the expansion and the return of the whole supporting arm group by arranging the locking ring and the buffer spring, can realize the expansion and the return of the supporting arm group by arranging the compression spring, is convenient for use in different drilling tools, can form a conductive path in the center rod by arranging the conductive rod, the banana socket and the banana plug, and has the characteristics of safety, labor saving, simplicity and high efficiency.
Description
Technical Field
The invention relates to the technical field of a card measuring point instrument string, in particular to a roller centralizing spring spear.
Background
Most of oil extraction wells in the current MAHU oil fields are long horizontal section horizontal wells, and the horizontal wells have fewer stuck treatment modes and are difficult to carry out; most wells that have been stuck in horizontal wells in a back-off mode during post-processing have not achieved good results. The long-time treatment of horizontal well accident handling can increase the downhole risks of sticking, collapsing, burying and the like of a free drilling tool in the well; the quantity of the drilling tools poured out each time by adopting the back-off mode has uncertainty, the construction time of the back-off mode is long, and the safety risks such as twisting off of the drilling tools exist in the back-off process, so that the horizontal drilling tool clamping processing process is more complex. At present, the method for measuring the stuck point and explosion trip in the horizontal well cannot be implemented, and a conventional instrument for measuring the stuck point has the characteristics of large abrasion resistance, good anchoring effect, and good precision and use effect of the stuck point; the advantage of the diameter section becomes a larger disadvantage in the horizontal section, the larger abrasion resistance severely restricts the pumping difficulty of the calliper in the horizontal well, and the instrument string structure easily causes the instrument to be clamped in the deflecting section due to the longer conventional calliper string, so that the construction risk is larger, and the further complexity of site construction is easily caused.
In the pumping process of the upper spear and the lower spear in the tool water hole through the pump opening in the stuck point measuring instrument string, larger sliding friction exists, and the sliding friction is converted into rolling friction by adding rollers on the spear sheet, so that the running resistance of the tool water hole measuring instrument string can be greatly reduced, and the tool water hole measuring instrument string can be facilitated to run in the tool water hole. In order to enhance the movement power of the instrument string in the water hole of the drilling tool, the movement power of the instrument string in the water hole of the drilling tool is enhanced by adding resistance rubber plugs on the upper spear and the lower spear, and the displacement required by a conventional pumping instrument can be greatly reduced; in order to enhance the anchoring effect of the upper spear and the lower spear, the stability of the spear sheet is enhanced and the anchoring effect is improved by shortening the lengths of the upper spear and the lower spear and the length of the spear sheet; finally, a roller centralizing spring spear suitable for the horizontal well stuck point measuring instrument is formed, and pumping and stuck point measuring construction operation of the stuck point measuring instrument in a horizontal section of the horizontal well is realized.
Disclosure of Invention
The invention provides a roller centralizing spring spear, which overcomes the defects of the prior art and can effectively solve the problems of large running resistance and poor anchoring effect of upper spear and lower spear in the existing stuck point measuring instrument string.
The technical scheme of the invention is realized by the following measures: the roller centering spring spear comprises a male joint, a center rod, a female joint, a left support arm, a right support arm, rollers and a conductive rod, wherein the inner side of the right end of the male joint is fixedly installed with the outer side of the left end of the center rod of a tubular structure in a sealing way, the outer side of the right end of the center rod is fixedly installed with the inner side of the left end of the female joint in a sealing way, the left side of the male joint is provided with a left support arm seat sleeved on the outer side of the left part of the center rod, a right support arm seat sleeved on the outer side of the center rod is arranged between the right side of the left support arm seat and the left side of the female joint, a plurality of left support arms are uniformly distributed on the outer side of the center rod along the circumference at intervals and are hinged with the corresponding positions of the right part of the left support arm seat, the right end of each left support arm seat is far away from the outer side of the center rod, the left part of the right support arm seat is hinged with the right support arm corresponding to the position of each left support arm, the right end of each left support arm is hinged with the corresponding right support arm seat through a connecting pin, each connecting pin is fixedly provided with a roller, the outer side of a central rod corresponding to the position between a right support arm seat and a left support arm seat is detachably and fixedly provided with a locking ring, the outer side of the middle part of the locking ring is fixedly provided with a pushing rubber plug with small left and large right, a buffer spring sleeved on the outer side of the central rod is arranged between the right end of the locking ring and the left end of the right support arm seat, a compression spring sleeved on the outer side of the central rod is arranged between the right end of the right support arm seat and the left end of a female joint, a first insulating sleeve with left and right ends respectively positioned on the left side and the right side of the central rod is sleeved in the central rod, a conducting rod with left and right ends respectively positioned on the left side and the right side of the first insulating sleeve is sleeved in the first insulating sleeve, the outer side of the left end of the conducting rod is fixedly provided with a second insulating sleeve with the right end of the inner side of the inner sleeve sleeved on the inner side of the male joint, a connecting sleeve with the left end sleeved on the outer side of the right end of the first insulating sleeve is fixedly arranged in the female connector corresponding to the right position of the center rod, a banana socket with the left end inner side fixedly arranged on the outer side of the right end of the conducting rod is sleeved in the connecting sleeve, a third insulating sleeve is sleeved on the outer side of the banana socket and the inner side of the connecting sleeve, and a banana plug with the right end positioned on the right side of the connecting sleeve is fixedly arranged in the center of the right end of the banana socket.
The following are further optimizations and/or improvements to the above-described inventive solution:
The right end of the left support arm can be provided with a left groove with an opening right, the left end of the right support arm is provided with a right groove with an opening left and a groove width larger than that of the left groove, the right end of the left support arm and the left end of the right support arm are hinged together through a connecting pin penetrating through the right groove, and the idler wheel is fixedly arranged on the outer side of the middle of the connecting pin.
The outer side of the roller can be fixed with a non-slip protrusion arranged along the radial direction of the central rod.
The female joint can be provided with an inner adjusting screw sleeve sleeved on the outer side of the right part of the central rod at the left side, the outer side of the left end of the inner adjusting screw sleeve is in threaded connection with an outer adjusting screw sleeve with the left end propped against the right end of the compression spring, and a plurality of slurry discharging holes communicated with the inside and the outside are uniformly distributed on the outer side of the left part of the outer adjusting screw sleeve corresponding to the left position of the inner adjusting screw sleeve along the circumference at intervals.
A left sealing ring can be arranged between the inner side of the right part of the male connector and the outer side of the left part of the central rod, a radially-through left connecting screw hole is formed in the outer side of the right end of the male connector corresponding to the right position of the left sealing ring, a left jackscrew with the inner end propped against the outer side of the left part of the central rod is screwed in the left connecting screw hole, and the outer side of the left end of the central rod corresponding to the left position of the left sealing ring is screwed with the inner side of the male connector.
A right sealing ring can be arranged between the inner side of the left part of the female connector and the outer side of the right part of the central rod, a right connecting screw hole which is radially communicated is arranged on the outer side of the left end of the female connector corresponding to the left position of the right sealing ring, a right jackscrew with the inner end propped against the outer side of the right part of the central rod is screwed in the right connecting screw hole, and the outer side of the right end of the central rod corresponding to the right position of the right sealing ring is screwed with the inner side of the female connector.
The invention has reasonable and compact structure, can lead the roller to straighten the invention to advance in the water hole of the drilling tool, is beneficial to moving and supporting in the water hole of the drilling tool, increases the resistance of the pushing rubber plug to mud when the pump is started to circulate by arranging the pushing rubber plug, effectively increases the advancing power of the invention in the water hole of the drilling tool, is beneficial to the expansion and the return of the whole supporting arm group by arranging the locking ring and the buffer spring, can realize the expansion and the return of the supporting arm group by arranging the compression spring, is convenient for use in different drilling tools, can form a conductive path in the center rod by arranging the conductive rod, the banana socket and the banana plug, and has the characteristics of safety, labor saving, simplicity and high efficiency.
Drawings
Fig. 1 is a schematic view of the present invention in front cross-section.
The codes in the drawings are respectively: 1 is a male connector, 2 is a central rod, 3 is a female connector, 4 is a left support arm, 5 is a right support arm, 6 is a roller, 7 is a conducting rod, 8 is a left support arm seat, 9 is a right support arm seat, 10 is a right jackscrew, 11 is a connecting pin, 12 is a locking ring, 13 is a buffer spring, 14 is a compression spring, 15 is a pushing rubber plug, 16 is a first insulating sleeve, 17 is a second insulating sleeve, 18 is a third insulating sleeve, 19 is a banana socket, 20 is a banana plug, 21 is a connecting sleeve, 22 is an inner inserting sleeve, 23 is an outer adjusting screw sleeve, 24 is an inner adjusting screw sleeve, 25 is a pulp discharging hole, 26 is a left sealing ring, 27 is a left jackscrew, and 28 is a right sealing ring.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
As shown in figure 1, the roller centering spear comprises a male joint 1, a center rod 2, a female joint 3, a left support arm 4, a right support arm 5, rollers 6 and a conducting rod 7, wherein the inner side of the right end of the male joint 1 is fixedly and hermetically installed with the outer side of the left end of the center rod 2 of a tubular structure, the outer side of the right end of the center rod 2 is fixedly and hermetically installed with the inner side of the left end of the female joint 3, the left side of the male joint 1 is provided with a left support arm seat 8 sleeved on the outer side of the left part of the center rod 2, a right support arm seat 9 sleeved on the outer side of the center rod 2 is arranged between the right side of the left support arm seat 8 and the left side of the female joint 3, a plurality of left support arms 4 with hinged connection of left ends corresponding positions of the left support arm seats 8 are uniformly distributed on the outer side of the center rod 2 along the circumference, the right end of each left support arm 4 is far away from the outer side of the center rod 2, the left part of the right support arm seat 9 corresponding to the position of each left support arm 4 is hinged with the right support arm 5, the right end of each left support arm 4 is hinged with the left end of the corresponding right support arm 5 through a connecting pin 11, each connecting pin 11 is fixedly provided with a roller 6, the outer side of a center rod 2 corresponding to the position between a right support arm seat 9 and a left support arm seat 8 is detachably and fixedly provided with a locking ring 12, the outer side of the middle part of the locking ring 12 is fixedly provided with a pushing rubber plug 15 with small left and big right, a buffer spring 13 sleeved outside the center rod 2 is arranged between the right end of the locking ring 12 and the left end of the right support arm seat 9, a compression spring 14 sleeved outside the center rod 2 is arranged between the right end of the right support arm seat 9 and the left end of a female connector 3, a first insulating sleeve 16 with left and right ends respectively positioned on the left and right sides of the center rod 2 is sleeved in the center rod 2, a conductive rod 7 with left and right ends respectively positioned on the left and right sides of the first insulating sleeve 16 is sleeved in the first insulating sleeve 16, the outer side of the left end of the conducting rod 7 is fixedly arranged on the inner side of the right end of an inner insertion sleeve 22 sleeved on the inner side of the male connector 1, a second insulation sleeve 17 fixedly arranged on the inner side of the left end of the male connector 1 is sleeved on the outer side of the inner insertion sleeve 22, a connecting sleeve 21 of which the left end is sleeved on the outer side of the right end of the first insulation sleeve 16 is fixedly arranged in a female connector 3 corresponding to the right position of the central rod 2, a banana socket 19 of which the left end is fixedly arranged on the inner side of the left end and the outer side of the right end of the conducting rod 7 is sleeved in the connecting sleeve 21, a third insulation sleeve 18 is sleeved on the outer side of the banana socket 19 and the inner side of the connecting sleeve 21, and a banana plug 20 of which the right end is positioned on the right side of the connecting sleeve 21 is fixedly arranged in the center of the right end of the banana socket 19.
According to the requirement, the banana plug 20 is a known technology, the banana socket 19 is matched with the banana plug 20, the locking ring 12 can be a known hoop, the locking ring 12 is tightly sleeved on the outer side of the central rod 2 through connecting bolts on two sides, and the locking ring 12 can also be a threaded sleeve and can be detachably and fixedly installed on the outer side of the central rod 2 through threaded connection. In the use process, the quick assembly and disassembly of the hydraulic well logging instrument with the tool string are facilitated by arranging the male joint 1 and the female joint 3, the assembly and disassembly efficiency is improved, the left support arm seat 8 and the right support arm seat 9 are convenient to install, the left support arm 4 and the right support arm 5 are convenient to install, the roller 6 can be used for righting the hydraulic well logging instrument in the drilling tool water hole to move and support, the hydraulic well logging instrument in the drilling tool water hole is facilitated to move and support by arranging the pushing rubber plug 15, the resistance of the pushing rubber plug 15 to mud is increased when the pump is started to circulate, the advancing power of the hydraulic well logging instrument in the drilling tool water hole is effectively increased, the expansion and the resetting of the whole support arm group are facilitated by arranging the locking ring 12 and the buffer spring 13, the expansion and the compression spring 14 can be used in the support arm group conveniently, a conductive path is formed in the center rod 2 by arranging the conductive rod 7, the banana socket 19 and the banana plug 20, the hydraulic well logging instrument string can be perfectly matched with the horizontal well logging instrument string, the difficult problem of running in the drilling tool water hole is effectively solved, the difficult problem of pumping and the hydraulic well logging instrument string can be met, the relative problem of the pumping and the clamping instrument can be solved, the well logging instrument can not be effectively expanded in the field, the horizontal well logging instrument can be well logging instrument has the advantages and the advantages of the well logging instrument can be well logging instrument well and the well logging instrument well. The invention has reasonable and compact structure, and has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.
The roller centering spring spear can be further optimized or/and improved according to actual needs:
As shown in fig. 1, the right end of the left support arm 4 is provided with a left groove with a right opening, the left end of the right support arm 5 is provided with a right groove with a left opening and a groove width larger than that of the left groove, the right end of the left support arm 4 and the left end of the right support arm 5 are hinged together through a connecting pin 11 penetrating through the right groove, and the idler wheel 6 is fixedly arranged on the outer side of the middle part of the connecting pin 11.
In the use, through such setting, be convenient for articulated connection between left support arm 4 and the right support arm 5, can also strengthen the joint strength between left support arm 4, right support arm 5 and the gyro wheel 6, can also make left support arm 4 and right support arm 5 nimble expansion.
As shown in fig. 1, the outside of the roller 6 is fixed with cleats arranged in the radial direction of the central rod 2.
According to the requirement, the outer side of the roller 6 can be provided with grains. By such an arrangement, the radial anchoring effect of the invention can be increased during use.
As shown in fig. 1, an inner adjusting screw sleeve 24 sleeved on the outer side of the right part of the central rod 2 is arranged on the left side of the female joint 3, an outer adjusting screw sleeve 23 with the left end propped against the right end of the compression spring 14 is screwed on the outer side of the left end of the inner adjusting screw sleeve 24, and a plurality of slurry discharging holes 25 communicated with the inside and the outside are uniformly distributed on the outer side of the left part of the outer adjusting screw sleeve 23 corresponding to the left position of the inner adjusting screw sleeve 24 along the circumference at intervals.
In the use process, through setting up interior regulation swivel nut 24 and outer regulation swivel nut 23, when relative rotation interior regulation swivel nut 24 and outer regulation swivel nut 23, can make the length extension or the shortening of interior regulation swivel nut 24 and outer regulation swivel nut 23, and then the compression degree of compression spring 14 is adjusted, thereby the radial distance between the central axis of regulating roller 6 and the central axis of center pole 2, the anchoring force of final regulation support arm and the drilling tool of the external diameter with the different internal diameters that are suitable for, through setting up mud discharge hole 25, can discharge the mud of interior regulation swivel nut 24 and outer regulation swivel nut 23 spiro union department when dismantling interior regulation swivel nut 24 and outer regulation swivel nut 23, prevent that mud from producing the jam to the spiro union department, the dismantlement degree of difficulty is reduced.
As shown in fig. 1, a left sealing ring 26 is arranged between the inner side of the right part of the male connector 1 and the outer side of the left part of the central rod 2, a radially through left connecting screw hole is arranged on the outer side of the right end of the male connector 1 corresponding to the right position of the left sealing ring 26, a left jackscrew 27 with the inner end propped against the outer side of the left part of the central rod 2 is screwed in the left connecting screw hole, and the outer side of the left end of the central rod 2 corresponding to the left position of the left sealing ring 26 is screwed with the inner side of the male connector 1.
In the use, through such setting, can strengthen the sealing performance between public joint 1 and the central pole 2, avoid mud to get into central pole 2 and make 7 left ends of conducting rod lose insulating effect and break down, the setting of left jackscrew 27 can strengthen the joint strength between public joint 1 and the central pole 2.
As shown in fig. 1, a right sealing ring 28 is arranged between the inner side of the left part of the female connector 3 and the outer side of the right part of the central rod 2, a right connecting screw hole which is radially penetrated is arranged at the outer side of the left end of the female connector 3 corresponding to the left position of the right sealing ring 28, a right jackscrew 10 with the inner end propped against the outer side of the right part of the central rod 2 is screwed in the right connecting screw hole, and the outer side of the right end of the central rod 2 corresponding to the right position of the right sealing ring 28 is screwed with the inner side of the female connector 3.
In the use, through such setting, can strengthen the sealing performance between female joint 3 and the central pole 2, avoid mud to get into central pole 2 and make 7 right-hand member of conducting rod lose insulating effect and break down, the setting of right jackscrew 10 can strengthen the joint strength between female joint 3 and the central pole 2.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (3)
1. The roller centering spring spear is characterized by comprising a male connector, a center rod, a female connector, a left supporting arm, a right supporting arm, rollers and a conductive rod, wherein the inner side of the right end of the male connector is fixedly installed with the outer side of the left end of the center rod of a tubular structure in a sealing way, the outer side of the right end of the center rod is fixedly installed with the inner side of the left end of the female connector in a sealing way, the left side of the male connector is provided with a left supporting arm seat sleeved on the outer side of the left part of the center rod, a right supporting arm seat sleeved on the outer side of the center rod is arranged between the right side of the left supporting arm seat and the left side of the female connector, a plurality of left supporting arms with hinged connection positions corresponding to the right parts of the left supporting arm seats are uniformly distributed on the outer side of the center rod along the circumference at intervals, the right end of each left supporting arm is far away from the outer side of the center rod, the left part of the right supporting arm seat corresponding to the position of each left supporting arm is hinged and connected with a right supporting arm, the right end of each left support arm is hinged with the left end of the corresponding right support arm through a connecting pin, a roller is fixedly installed on each connecting pin, a locking ring is detachably and fixedly installed on the outer side of a center rod corresponding to the position between the right support arm seat and the left support arm seat, a pushing rubber plug with small left and big right is fixedly installed on the outer side of the middle part of the locking ring, a buffer spring sleeved on the outer side of the center rod is arranged between the right end of the locking ring and the left end of the right support arm seat, a compression spring sleeved on the outer side of the center rod is arranged between the right end of the right support arm seat and the left end of a female joint, a first insulating sleeve with left and right ends respectively positioned on the left side and the right side of the center rod is sleeved on the inner side of an inner sleeve with the right end of the right part sleeved on the inner side of the male joint, a conducting rod is fixedly installed on the left side of the inner side of the right end of the inner sleeve, the inner side of the inner insertion sleeve is sleeved with a second insulating sleeve fixedly installed together with the inner side of the left part of the male connector, a connecting sleeve with the left end sleeved on the outer side of the right end of the first insulating sleeve is fixedly installed in the female connector corresponding to the right position of the center rod, a banana socket with the inner side of the left end fixedly installed together with the outer side of the right end of the conducting rod is sleeved in the connecting sleeve, a third insulating sleeve is sleeved on the outer side of the banana socket and the inner side of the connecting sleeve, and a banana plug with the right end positioned on the right side of the connecting sleeve is fixedly installed in the center of the right end of the banana socket;
The right end of the left support arm is provided with a left groove with a rightward opening, the left end of the right support arm is provided with a right groove with a leftward opening and a groove width larger than that of the left groove, the right end of the left support arm and the left end of the right support arm are hinged together through a connecting pin penetrating through the right groove, and the idler wheel is fixedly arranged on the outer side of the middle part of the connecting pin;
An inner adjusting screw sleeve sleeved on the outer side of the right part of the central rod is arranged on the left side of the female joint, an outer adjusting screw sleeve with the left end propped against the right end of the compression spring is screwed on the outer side of the left end of the inner adjusting screw sleeve, and a plurality of slurry discharging holes communicated with the inside and the outside are uniformly distributed on the outer side of the left part of the outer adjusting screw sleeve corresponding to the left position of the inner adjusting screw sleeve along the circumference at intervals;
A left sealing ring is arranged between the inner side of the right part of the male connector and the outer side of the left part of the central rod, a radially-through left connecting screw hole is arranged at the outer side of the right end of the male connector corresponding to the right position of the left sealing ring, a left jackscrew with the inner end propped against the outer side of the left part of the central rod is screwed in the left connecting screw hole, and the outer side of the left end of the central rod corresponding to the left position of the left sealing ring is screwed with the inner side of the male connector.
2. The roller centralizing spear of claim 1, wherein the roller is secured with a stud disposed radially of the central rod on the outside thereof.
3. The roller centering spring spear according to claim 1 or 2, wherein a right seal ring is provided between the inner side of the left part of the female joint and the outer side of the right part of the center rod, a right connecting screw hole which is radially penetrated is provided at the outer side of the left end of the female joint corresponding to the left position of the right seal ring, a right jackscrew with the inner end abutting against the outer side of the right part of the center rod is screwed into the right connecting screw hole, and the outer side of the right end of the center rod corresponding to the right position of the right seal ring is screwed into the inner side of the female joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235765.XA CN116006105B (en) | 2021-10-22 | 2021-10-22 | Roller centralizing spring spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235765.XA CN116006105B (en) | 2021-10-22 | 2021-10-22 | Roller centralizing spring spear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116006105A CN116006105A (en) | 2023-04-25 |
| CN116006105B true CN116006105B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111235765.XA Active CN116006105B (en) | 2021-10-22 | 2021-10-22 | Roller centralizing spring spear |
Country Status (1)
| Country | Link |
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| CN (1) | CN116006105B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201963237U (en) * | 2010-12-17 | 2011-09-07 | 中国石油集团长城钻探工程有限公司 | Multi-pipe-diameter boosting device |
| CN202628068U (en) * | 2012-02-23 | 2012-12-26 | 曾适 | Underground spring spear of free point indicator |
| WO2017121087A1 (en) * | 2016-01-11 | 2017-07-20 | 叶顶胜 | Fully sealed intelligent wired drill pipe tool joint |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
-
2021
- 2021-10-22 CN CN202111235765.XA patent/CN116006105B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201963237U (en) * | 2010-12-17 | 2011-09-07 | 中国石油集团长城钻探工程有限公司 | Multi-pipe-diameter boosting device |
| CN202628068U (en) * | 2012-02-23 | 2012-12-26 | 曾适 | Underground spring spear of free point indicator |
| WO2017121087A1 (en) * | 2016-01-11 | 2017-07-20 | 叶顶胜 | Fully sealed intelligent wired drill pipe tool joint |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116006105A (en) | 2023-04-25 |
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