CN205154056U - High -efficient rotation type centralizer - Google Patents
High -efficient rotation type centralizer Download PDFInfo
- Publication number
- CN205154056U CN205154056U CN201520942339.3U CN201520942339U CN205154056U CN 205154056 U CN205154056 U CN 205154056U CN 201520942339 U CN201520942339 U CN 201520942339U CN 205154056 U CN205154056 U CN 205154056U
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- China
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- rotary sleeve
- centralizer
- wall
- wear
- resistant pad
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Abstract
The utility model relates to a high -efficient rotation type centralizer, it includes centralizer body and rotary sleeve (3), rotary sleeve (3) rotate the suit on the centralizer body and with centralizer body axial sliding fit, rotary sleeve (3) upper end is equipped with clutch teeth (31), be equipped with one (31) the matched with clutch teeth two (11) with clutch teeth on upper part of the body (1), it rights muscle (32) to be equipped with a plurality of on the outer wall of rotary sleeve (3), it is equipped with drilling wearing layer (34) on the lower terminal surface of muscle (32) respectively to set upright or straight. Using it both can play the effect of rightting to the drilling tool, can playing the mill effect of boring to drilling in drilling process again and make centralizer resistance elimination down, be favorable to reducing and creep into the resistance and improve drilling speed, the messenger creeps into more smoothly, and work efficiency is higher, and it is more convenient that the use is got up. Its solid structure, it is little to right the face wearing and tearing, and abrasion resistance is high, and life is longer, can reduce the operating cost, saves activity duration and manpower and materials, saves the resource more.
Description
Technical field
The utility model relates to petroleum tool, is specifically related to a kind of rotary stabilizer.
Background technology
Centralizer is the indispensable instrument used in oil drilling, for connecting rig ground installation and the brill mill equipment being positioned at bottom, down-hole, playing righting drilling tool, reduce the effect of boring mill resistance in drilling well.The centralizer that current oil field uses is single, if descending in drilling process time centralizer card, to creeping into, the comparison of resistance brought is large, is unfavorable for that drilling tool is descending and improve rate of penetration.
Summary of the invention
The purpose of this utility model be for existing centralizer in drilling process descending blocked time resistance comparatively large, be unfavorable for that drilling tool is descending and improve the defect of rate of penetration, a kind of high efficiency rotary centralizer is provided.
Technical solution of the present utility model is: it comprises by upper body, the centralizer body that lower body is formed and rotary sleeve, the lower end of upper body is connected with the top axial of lower body by screw thread, rotary sleeve turning set is contained on centralizer body also and between centralizer body has one section of axial sliding fit stroke, rotary sleeve upper end is circumferentially with the clutch tooth one of a circle towards extreme direction on upper body, upper body is provided with the top that a circle is positioned at clutch tooth one, the clutch tooth two matched with clutch tooth one, rotary sleeve freely can rotate along the axial sliding fit stroke on centralizer body is descending on centralizer body, uply clutch tooth one can be made axially to match with clutch tooth two centralizer body is rotated together with rotary sleeve, on the outer wall of rotary sleeve, circumference is provided with some axial righting ribs separately, the lower surface of each righting rib is respectively the upper coarse and lower fine inclination conical surface from rotary sleeve inwall to outer wall transition, the inclination conical surface is provided with drilling wearing layer.
Technique effect of the present utility model is: use it both can play centralizing function to drilling tool, again can in drilling process, centralizer be descending when being blocked to boring plays and bore mill effect centralizer friction in down stroke is eliminated, be conducive to reduction creep into resistance and improve rate of penetration, make to creep into more smooth and easy, operating efficiency is higher, more convenient to use.It is firm in structure, and righting surface wear is little, and scuff resistance is high, longer service life, can reduce operating cost, saves activity duration and manpower and materials, more saving resource.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of the utility model embodiment;
Fig. 2 is the utility model embodiment rotary sleeve transverse sectional view.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, it comprises by upper body 1, the centralizer body that lower body 2 is formed and rotary sleeve 3, the lower end of upper body 1 is connected by the top axial of screw thread with lower body 2, rotary sleeve 3 turning set is contained on centralizer body also and between centralizer body has one section of axial sliding fit stroke, rotary sleeve 3 upper end is circumferentially with the clutch tooth one 31 of a circle towards extreme direction on upper body 1, upper body 1 is provided with the top that a circle is positioned at clutch tooth 1, the clutch tooth 2 11 matched with clutch tooth 1, rotary sleeve 3 freely can rotate along the axial sliding fit stroke on centralizer body is descending on centralizer body, uply clutch tooth 1 can be made axially to match with clutch tooth 2 11 centralizer body is rotated together with rotary sleeve 3, on the outer wall of rotary sleeve 3, circumference is provided with some axial righting ribs 32 separately, the lower surface of each righting rib 32 is respectively the upper coarse and lower fine inclination conical surface 33 from rotary sleeve 3 inwall to outer wall transition, the inclination conical surface 33 is provided with drilling wearing layer 34.
Upper body 1 and lower body 2 are respectively the cylindrical body axially with through hole, the upper end of upper body 1 is provided with the internal thread, the lower end that are connected with drilling rod and is provided with the internal thread be connected with lower body 2 upper end, the upper end of lower body 2 is provided with the external screw thread, the lower end that are connected with lower end, upper body 1 and is provided with the external screw thread be connected with drilling tool, and upper body 1 is axially connected by the internal thread of lower end and the external screw thread of lower body 2 upper end.
Position corresponding with rotary sleeve 3 upper end on upper body 1 is provided with the locking cap 12 be arranged on by screw thread on the outer wall of upper body 1, the below of locking cap 12 is provided with and is sleeved on the outer wall of upper body 1 and the locating snap ring 13 be connected with locking cap 12 axial restraint, clutch tooth 2 11 is located on the lower surface of locating snap ring 13, be provided with below locating snap ring 13 and be fixedly mounted on rotary sleeve 3 and slip cap is contained in the phantom ring 35 on the outer wall of upper body 1, clutch tooth 1 match with clutch tooth 2 11 be located at phantom ring 35 upper surface on, position corresponding with rotary sleeve 3 bottom on lower body 2 is provided with several and is sleeved on lower body 2 outer wall from the top down successively, for reducing the wear-resistant pad 4 axially worn and torn between rotary sleeve 3 and lower body 2.
Above phantom ring 35, the inwall slipper seal of rotary sleeve 3 is sleeved on locking cap 12 and locating snap ring 13 outer wall, the outer wall of locking cap 12 is provided with in seal groove 1, seal groove 1 sealing ring 5 being provided with and coordinating with the slipper seal of rotary sleeve 3 inwall, on lower body 2 outer wall that below each wear-resistant pad 4, the inwall slipper seal engagement sleeves of rotary sleeve 3 is contained in, below each wear-resistant pad 4, the outer wall of lower body 2 is provided with in seal groove 2 21, seal groove 2 21 sealing ring 5 being provided with and coordinating with the slipper seal of rotary sleeve 3 inwall.Each wear-resistant pad 4 to be arranged in the wear-resistant pad groove 22 on lower body 2 and to be stuck between the inner face of lower surface, upper body 1 and wear-resistant pad groove 22 below lower surface, upper body 1.Matching with the inner face of rotary sleeve 3 in the upper surface of the top wear-resistant pad 4, matches with the inner face of the wear-resistant pad groove 22 of lower body 2 in the lower surface of bottom wear-resistant pad 4.
Rotary sleeve 3 inwall between phantom ring 35 and wear-resistant pad 4 is respectively equipped with bearing mounting groove 36 near the position circumference of phantom ring 35 and wear-resistant pad 4, is separately installed with turning set in each bearing mounting groove 36 and is contained in the needle bearing 6 that upper body 1 outer wall is also axially slidably matched with upper body 1.
Locking cap 12 is provided with radial direction by the screw thread position be arranged on upper body 1 and is arranged on anti-rotation jackscrew 16 between locking cap 12 and upper body 1, is axially connected by screw between locating snap ring 13 with locking cap 12.Axially be connected by screw or be connected with jackscrew by flat key between phantom ring 35 with rotary sleeve 3.
The outer wall of each righting rib of rotary sleeve 3 32 is axially provided with multiple mounting groove 37 separately, ball seat 38 is separately installed with in each mounting groove 37, roll in ball seat 38 and alloying pellet 39 is installed, be provided with the compression spring hole be positioned on ball seat 38 between bottom ball seat 38 and bottom mounting groove 37, in compression spring hole, be provided with that top, one end is pressed on alloying pellet 39, other end top is pressed in and makes the part sphere of alloying pellet 39 be exposed to stage clip 40 outside righting rib 32 bottom mounting groove 37.
Advantage of the present utility model: which overcome existing centralizer scuff resistance low, moment of torsion is large, needs the defect often changed, and adopts rotary structure, centralizer descending by resistance time, rotary sleeve 3 does not rotate with drilling rod, thus reduces the torsional forces of overall drilling tool.When the descending rotary sleeve of centralizer runs into larger resistance, rotary sleeve 3 can along centralizer body automatically up being locked on centralizer body rotate with overall drilling tool, make rotary sleeve 3 play the effect of creeping into, boring repaiied and scrapes.When rotary sleeve 3 creep into resistance disappear time, rotary sleeve 3 automatically to get loose with centralizer body normal rotatable engagement under the effect of deadweight from centralizer body, again plays the effect rotating righting, alleviate the torsional forces of overall drilling tool.
Claims (8)
1. high efficiency rotary centralizer, it comprises by upper body (1), the centralizer body that lower body (2) is formed and rotary sleeve (3), the lower end of upper body (1) is connected by the top axial of screw thread with lower body (2), it is characterized in that: rotary sleeve (3) turning set is contained on centralizer body also and between centralizer body has one section of axial sliding fit stroke, rotary sleeve (3) upper end is circumferentially with the clutch tooth one (31) of a circle towards upper body (1) upper extreme direction, upper body (1) is provided with the top that a circle is positioned at clutch tooth one (31), the clutch tooth two (11) matched with clutch tooth one (31), rotary sleeve (3) freely can rotate along the axial sliding fit stroke on centralizer body is descending on centralizer body, uply clutch tooth one (31) can be made axially to match with clutch tooth two (11) centralizer body is rotated together with rotary sleeve (3), on the outer wall of rotary sleeve (3), circumference is provided with some axial righting ribs (32) separately, the lower surface of each righting rib (32) is respectively the upper coarse and lower fine inclination conical surface (33) from rotary sleeve (3) inwall to outer wall transition, the inclination conical surface (33) is provided with drilling wearing layer (34).
2. high efficiency rotary centralizer as claimed in claim 1, it is characterized in that described upper body (1) and lower body (2) are respectively the cylindrical body axially with through hole, the upper end of upper body (1) is provided with the internal thread, the lower end that are connected with drilling rod and is provided with the internal thread be connected with lower body (2) upper end, the upper end of lower body (2) is provided with the external screw thread, the lower end that are connected with upper body (1) lower end and is provided with the external screw thread be connected with drilling tool, and upper body (1) is axially connected by the internal thread of lower end and the external screw thread of lower body (2) upper end.
3. high efficiency rotary centralizer as claimed in claim 1, it is characterized in that the upper position corresponding with rotary sleeve (3) upper end, described upper body (1) is provided with the locking cap (12) be arranged on by screw thread on upper body (1) outer wall, the below of locking cap (12) is provided with and is sleeved on upper body (1) outer wall and the locating snap ring (13) be connected with locking cap (12) axial restraint, clutch tooth two (11) is located on the lower surface of locating snap ring (13), locating snap ring (13) below is provided with and is fixedly mounted on that rotary sleeve (3) is upper and slip cap is contained in the phantom ring (35) on upper body (1) outer wall, clutch tooth one (31) match with clutch tooth two (11) be located at phantom ring (35) upper surface on, the upper position corresponding with rotary sleeve (3) bottom of lower body (2) is provided with several and is sleeved on lower body (2) outer wall from the top down successively, for reducing the wear-resistant pad (4) axially worn and torn between rotary sleeve (3) and lower body (2).
4. high efficiency rotary centralizer as claimed in claim 3, it is characterized in that the inwall slipper seal of described phantom ring (35) top rotary sleeve (3) is sleeved on locking cap (12) and locating snap ring (13) outer wall, the outer wall of locking cap (12) is provided with seal groove one (15), the sealing ring (5) coordinated with rotary sleeve (3) inwall slipper seal is installed in seal groove one (15), on lower body (2) outer wall that below each wear-resistant pad (4), the inwall slipper seal engagement sleeves of rotary sleeve (3) is contained in, the outer wall of each wear-resistant pad (4) below lower body (2) is provided with seal groove two (21), the sealing ring (5) coordinated with rotary sleeve (3) inwall slipper seal is installed in seal groove two (21).
5. high efficiency rotary centralizer as claimed in claim 3, is characterized in that described each wear-resistant pad (4) is positioned at and is arranged on the wear-resistant pad groove (22) on lower body (2) below upper body (1) lower surface and between the inner face being stuck in (1) lower surface, upper body and wear-resistant pad groove (22).
6. high efficiency rotary centralizer as claimed in claim 5, it is characterized in that matching with the inner face of rotary sleeve (3) in the upper surface of the top wear-resistant pad (4), matches with the inner face of the wear-resistant pad groove (22) of lower body (2) in the lower surface of bottom wear-resistant pad (4).
7. high efficiency rotary centralizer as claimed in claim 3, it is characterized in that rotary sleeve (3) inwall between described phantom ring (35) and wear-resistant pad (4) is respectively equipped with bearing mounting groove (36) near the position circumference of phantom ring (35) and wear-resistant pad (4), be separately installed with turning set in each bearing mounting groove (36) and be contained in the needle bearing (6) that upper body (1) outer wall is also axially slidably matched with upper body (1).
8. high efficiency rotary centralizer as claimed in claim 1, the outer wall that it is characterized in that described rotary sleeve (3) each righting rib (32) is axially provided with multiple mounting groove (37) separately, ball seat (38) is separately installed with in each mounting groove (37), roll in ball seat (38) and alloying pellet (39) is installed, the compression spring hole be positioned on ball seat (38) is provided with between ball seat (38) bottom and mounting groove (37) bottom, being provided with top, one end in compression spring hole is pressed on alloying pellet (39), other end top is pressed in mounting groove (37) bottom makes the part sphere of alloying pellet (39) be exposed to righting rib (32) stage clip outward (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942339.3U CN205154056U (en) | 2015-11-24 | 2015-11-24 | High -efficient rotation type centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942339.3U CN205154056U (en) | 2015-11-24 | 2015-11-24 | High -efficient rotation type centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154056U true CN205154056U (en) | 2016-04-13 |
Family
ID=55689764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942339.3U Expired - Fee Related CN205154056U (en) | 2015-11-24 | 2015-11-24 | High -efficient rotation type centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691832A (en) * | 2020-07-14 | 2020-09-22 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
-
2015
- 2015-11-24 CN CN201520942339.3U patent/CN205154056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691832A (en) * | 2020-07-14 | 2020-09-22 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
| CN111691832B (en) * | 2020-07-14 | 2022-05-24 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
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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: 20160413 Termination date: 20171124 |