CN201851036U - Antifriction and resistance-diminishing centralizing short piece - Google Patents
Antifriction and resistance-diminishing centralizing short piece Download PDFInfo
- Publication number
- CN201851036U CN201851036U CN2010206159095U CN201020615909U CN201851036U CN 201851036 U CN201851036 U CN 201851036U CN 2010206159095 U CN2010206159095 U CN 2010206159095U CN 201020615909 U CN201020615909 U CN 201020615909U CN 201851036 U CN201851036 U CN 201851036U
- Authority
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- China
- Prior art keywords
- ring
- centering
- resistance
- antifriction
- short segment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 12
- 241001633942 Dais Species 0.000 claims description 7
- 229920001875 Ebonite Polymers 0.000 claims description 4
- 229920001967 Metal rubber Polymers 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003345 natural gas Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- -1 tungsten carbides Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to the technical field of centralizers used for oil and natural gas drilling, in particular to an antifriction and resistance-diminishing centralizing short piece comprising a body, a centralizing ring and a baffle ring, wherein the centralizing ring is sheathed on the exterior of the middle of the body and is rotatable, the exterior of the body at the left side of the centralizing ring is provided with external threads for the baffle ring, the baffle ring is fixedly installed at the left part of the body through the external threads for the baffle ring and capable of preventing the centralizing ring from moving leftwards, and the exterior of the body at the right side of the centralizing ring is provided with a limit ring platform capable of preventing the centralizing ring from moving rightwards. The antifriction and resistance-diminishing centralizing short piece is reasonable and compact in structure and convenient in use, and prevents the axial fluctuation of the rotatable centralizing ring sheathed on the exterior of the body through the limit ring platform and the baffle ring, therefore the antifriction and resistance-diminishing centralizing short piece not only has the characteristic of stability, but also can effectively reduce the frictional resistance, and is characterized by being simple in structure, and convenient, safe, reliable, easy and laborsaving for production and maintenance.
Description
Technical field
The utility model relates to the centralizer technical field that the petroleum and natural gas drilling well is used, and is that the resistance centering short segment falls in a kind of antifriction.
Background technology
Along with the difficulty of exploration and development increases day by day, the requirement of drilling technology level and downhole tool is also continued to increase.The probing of extended reach directional well, horizontal well, deep-well, complicated well is on the increase, and various downhole tools need constantly development could satisfy complicated day by day drilling well demand.CORING TECHNOLOGY is as a kind of important technical of obtaining the stratum firsthand information, through constantly development raising, the various directional well coring tools at present domestic and international oil field, all adopt common centralizer to be installed on the coring tool, during big or horizontal segment core-drilling, there is bigger frictional resistance at slope in this coring tool.
Summary of the invention
The utility model provides a kind of antifriction to fall the resistance centering short segment, has overcome the deficiency of above-mentioned prior art, the bigger problem of frictional resistance when being used on the coring tool that it can solve effectively that centralizer that existing petroleum and natural gas drilling well uses exists.
The technical solution of the utility model realizes by following measure: the resistance centering short segment falls in a kind of antifriction, comprises body, centering ring and baffle ring; Centering ring is sleeved on the outside, middle part of body and can rotates, there is the baffle ring external screw thread in the body outside of centering ring left part, baffle ring is fixedly mounted on the body left part by the baffle ring external screw thread and can stops centering ring to move to the left, and there is the limited ring dais that can stop centering ring to move to the right in the body outside of centering ring right part.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can there be the lock pin screw in the outside, middle part of above-mentioned baffle ring, and there is the lock pin draw-in groove position of corresponding lock pin screw on the body, and lock screw is fixedly mounted in the lock pin screw, and the inner of lock screw holds out against on the bottom surface of lock pin draw-in groove.
On above-mentioned centering ring left part and the pairing body of centering ring right part left seal groove and right seal groove can be arranged respectively, in the seal groove of a left side left sealing ring is installed, in the right seal groove right sealing ring is installed, has on the body between left seal groove and the right seal groove to be no less than one lubricated annular groove.
Between above-mentioned baffle ring and the centering ring packing ring can be arranged, oilhole is arranged respectively on the left surface of packing ring and the right flank.
Last connecting thread can be arranged at the inner chamber top of above-mentioned body, and can there be following connecting thread in the outside, bottom of body.
The outside of above-mentioned centering ring can be distributed with and be no less than two axial rib, axially can be distributed with wear-resisting salient point on the lateral surface of rib.
The quantity of above-mentioned axial rib can be three to six and evenly distribute, and wear-resisting salient point is made with tungsten carbide or carbide alloy, and packing ring is made with resin or soft metal or hard rubber.
The utility model reasonable and compact in structure, easy to use, it also can rotate by making centering ring be sleeved on body exterior, prevent that by limited ring dais and baffle ring centering ring from axially jumping, when having stability characteristic (quality), also can less effectively frictional resistance, have simple in structure, make labour-saving easy to maintenance, safe and reliable, easy characteristics.
Description of drawings
Accompanying drawing 1 partly cuts open structural representation for the master of the utility model most preferred embodiment looks.
Coding in the accompanying drawing is respectively: 1 is body, and 2 is centering ring, and 3 is baffle ring, 4 is the baffle ring external screw thread, and 5 is limited ring dais, and 6 is the lock pin screw, 7 is the lock pin draw-in groove, and 8 is lock screw, and 9 is left seal groove, 10 is right seal groove, and 11 is left sealing ring, and 12 is right sealing ring, 13 are lubricated annular groove, and 14 is packing ring, and 15 is last connecting thread, 16 are following connecting thread, and 17 is axial rib, and 18 is wear-resisting salient point.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: upper and lower, about etc. the position relation be what to determine according to the Butut direction of Figure of description.
Below in conjunction with most preferred embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this antifriction fall the resistance centering short segment comprise body 1, centering ring 2 and baffle ring 3; Centering ring 2 is sleeved on the outside, middle part of body 1 and can rotates, there is baffle ring external screw thread 4 in body 1 outside of centering ring 2 left parts, baffle ring 3 is fixedly mounted on body 1 left part by baffle ring external screw thread 4 and can stops centering ring 2 to move to the left, and there is the limited ring dais 5 that can stop centering ring 2 to move to the right in body 1 outside of centering ring 2 right parts.Centering ring 2 is sleeved on body 1 outside and can rotates and can effectively reduce frictional resistance, can prevent that by limited ring dais and baffle ring centering ring from axially jumping.
Can the resistance centering short segment be fallen in above-mentioned antifriction make further optimization and/or improvements according to actual needs:
As shown in Figure 1, there is lock pin screw 6 in the outside, the middle part of baffle ring 3, and there is lock pin draw-in groove 7 position of corresponding lock pin screw 6 on the body 1, and lock screw 8 is fixedly mounted in the lock pin screw 6, and the inner of lock screw 8 holds out against on the bottom surface of lock pin draw-in groove 7.Lock screw 8 can be pinned baffle ring 3, and anti-baffle ring 3 releases in the course of the work.
As shown in Figure 1, on the pairing body 1 of centering ring 2 left parts and centering ring 2 right parts left seal groove 9 and right seal groove 10 are arranged respectively, in the seal groove 9 of a left side left sealing ring 11 is installed, in the right seal groove 10 right sealing ring 12 is installed, has on the body 1 between left seal groove 9 and the right seal groove 10 to be no less than one lubricated annular groove 13.Filling lubrication oil can prevent that body 1 outside and centering ring 2 inwalls from wearing and tearing mutually and can further reduce frictional resistance in lubricated annular groove 13, prevents that centering ring 2 from wearing and tearing; Left side sealing ring 11 and right sealing ring 12 can prevent that lubrication oil runs off.
As shown in Figure 1, between baffle ring 3 and the centering ring 2 packing ring 14 is arranged, oilhole is arranged respectively on the left surface of packing ring 14 and the right flank.Packing ring 14 can avoid baffle ring 3 and centering ring 2 to wear and tear mutually, and oilhole can store lubrication oil.
As shown in Figure 1, last connecting thread 15 is arranged at the inner chamber top of body 1, and there is following connecting thread 16 in the outside, bottom of body 1.Last connecting thread 15 and following connecting thread 16 can also can be the pipe connecting thread for regular screw threads, body 1 can be connected with the urceolus of coring when last connecting thread 15 is regular screw threads with following connecting thread 16, also can be as required, will go up connecting thread 15 and following connecting thread 16 and make and be processed as drill collar API standard button-type and be connected with drilling tool.
As shown in Figure 1, the outside of centering ring 2 is distributed with and is no less than two axial rib 17, axially is distributed with wear-resisting salient point 18 on the lateral surface of rib 17.Axially rib 17 and wear-resisting salient point 18 can increase the outside effectively contact area of centering ring 2, increase friction, and the centering ring 2 and the borehole wall are fitted firmly.
As shown in Figure 1, axially the quantity of rib 17 is three to six and evenly distributes, and wear-resisting salient point 18 usefulness tungsten carbides or carbide alloy are made, and packing ring 4 usefulness resins or soft metal or hard rubber are made.Wear-resisting salient point 18 is selected tungsten carbide or carbide alloy for use, applies the surface of welding or being embedded in axial rib 17, can increase the anti-wear performance of centering ring 2, prolongs its application life.Packing ring 4 is selected resin or soft metal or hard rubber for use, can protect the contact jaw of centering ring 2 and baffle ring 3 and packing ring 4, avoids its wearing and tearing.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The installation work process of the utility model most preferred embodiment is: at first, left sealing ring 11 and right sealing ring 12 are installed in left seal groove 9 and the right seal groove 10 coating lubricating oil in the lubricated annular groove 13 of body 1; Then, centering ring 2 is sleeved on the body 1, the right-hand member of centering ring 2 is leaned against on the left side of limited ring dais 5, left part at body 1 is installed packing ring 14, coating lubricating oil on packing ring 14, again baffle ring 3 is fixedly mounted on the body 1 by baffle ring external screw thread 4, with lock screw 8 baffle ring 3 is locked at last.In drilling operation course, centering ring 2 is pasting the borehole wall by axial rib 17 and wear-resisting salient point 18 and is not rotating, and body 1, baffle ring 3 rotate with drilling tool, realize setting upright the anti-attrition resistance reducing effect.
Claims (10)
1. the resistance centering short segment falls in an antifriction, it is characterized in that comprising body, centering ring and baffle ring; Centering ring is sleeved on the outside, middle part of body and can rotates, there is the baffle ring external screw thread in the body outside of centering ring left part, baffle ring is fixedly mounted on the body left part by the baffle ring external screw thread and can stops centering ring to move to the left, and there is the limited ring dais that can stop centering ring to move to the right in the body outside of centering ring right part.
2. the resistance centering short segment falls in antifriction according to claim 1, there is the lock pin screw in the outside, middle part that it is characterized in that baffle ring, there is the lock pin draw-in groove position of corresponding lock pin screw on the body, and lock screw is fixedly mounted in the lock pin screw, and the inner of lock screw holds out against on the bottom surface of lock pin draw-in groove.
3. the resistance centering short segment falls in antifriction according to claim 1 and 2, it is characterized in that on centering ring left part and the pairing body of centering ring right part left seal groove and right seal groove being arranged respectively, in the seal groove of a left side left sealing ring is installed, in the right seal groove right sealing ring is installed, has on the body between left seal groove and the right seal groove to be no less than one lubricated annular groove.
4. the resistance centering short segment falls in antifriction according to claim 1 and 2, it is characterized in that between baffle ring and the centering ring packing ring being arranged, and oilhole is arranged respectively on the left surface of packing ring and the right flank.
5. the resistance centering short segment falls in antifriction according to claim 3, it is characterized in that between baffle ring and the centering ring packing ring being arranged, and oilhole is arranged respectively on the left surface of packing ring and the right flank.
6. the resistance centering short segment falls in antifriction according to claim 4, it is characterized in that last connecting thread is arranged at the inner chamber top of body, and there is following connecting thread in the outside, bottom of body.
7. the resistance centering short segment falls in antifriction according to claim 5, it is characterized in that last connecting thread is arranged at the inner chamber top of body, and there is following connecting thread in the outside, bottom of body.
8. the resistance centering short segment falls in antifriction according to claim 6, and the outside that it is characterized in that centering ring is distributed with and is no less than two axial rib, axially is distributed with wear-resisting salient point on the lateral surface of rib.
9. the resistance centering short segment falls in antifriction according to claim 7, and the outside that it is characterized in that centering ring is distributed with and is no less than two axial rib, axially is distributed with wear-resisting salient point on the lateral surface of rib.
10. the resistance centering short segment falls in antifriction according to claim 9, and the quantity that it is characterized in that axial rib is three to six and evenly distributes that wear-resisting salient point is made with tungsten carbide or carbide alloy, and packing ring is made with resin or soft metal or hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206159095U CN201851036U (en) | 2010-11-21 | 2010-11-21 | Antifriction and resistance-diminishing centralizing short piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206159095U CN201851036U (en) | 2010-11-21 | 2010-11-21 | Antifriction and resistance-diminishing centralizing short piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851036U true CN201851036U (en) | 2011-06-01 |
Family
ID=44093435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206159095U Expired - Fee Related CN201851036U (en) | 2010-11-21 | 2010-11-21 | Antifriction and resistance-diminishing centralizing short piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851036U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727760A (en) * | 2015-03-20 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Spherical friction and resistance reduction stabilizer |
| CN108442889A (en) * | 2017-12-19 | 2018-08-24 | 中国石油天然气股份有限公司 | Rotary wear-resistant drag reducer |
| CN109403881A (en) * | 2018-12-26 | 2019-03-01 | 济源微浪石油设备有限公司 | Interchangeable straight wing stabilizer |
| US11642025B2 (en) | 2018-07-16 | 2023-05-09 | Verily Life Sciences Llc | Retinal camera with light baffle and dynamic illuminator for expanding eyebox |
-
2010
- 2010-11-21 CN CN2010206159095U patent/CN201851036U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727760A (en) * | 2015-03-20 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Spherical friction and resistance reduction stabilizer |
| CN108442889A (en) * | 2017-12-19 | 2018-08-24 | 中国石油天然气股份有限公司 | Rotary wear-resistant drag reducer |
| US11642025B2 (en) | 2018-07-16 | 2023-05-09 | Verily Life Sciences Llc | Retinal camera with light baffle and dynamic illuminator for expanding eyebox |
| CN109403881A (en) * | 2018-12-26 | 2019-03-01 | 济源微浪石油设备有限公司 | Interchangeable straight wing stabilizer |
| CN109403881B (en) * | 2018-12-26 | 2023-12-26 | 济源微浪石油设备有限公司 | Stabilizer with replaceable straight wings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20161121 |