CN204492759U - Multifunctional rotary sleeve pipe leads to curette - Google Patents
Multifunctional rotary sleeve pipe leads to curette Download PDFInfo
- Publication number
- CN204492759U CN204492759U CN201520081752.5U CN201520081752U CN204492759U CN 204492759 U CN204492759 U CN 204492759U CN 201520081752 U CN201520081752 U CN 201520081752U CN 204492759 U CN204492759 U CN 204492759U
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- mandrel
- wall
- scraping
- wall cutter
- cutter
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Abstract
The utility model relates to a kind of multifunctional rotary sleeve pipe and leads to curette, it comprises mandrel (1) and lower contact (2), the upper end of mandrel (1) is set with upper bush (3), upper bush (3) is connected with mandrel (1) below position and is provided with piston (4), piston (4) below is provided with scrapes wall cutter (5), internal taper hole (11) is provided with in mandrel (1) centre bore, the sidewall of mandrel (1) is provided with one end open in internal taper hole (11) top mandrel (1) centre bore, the other end is opened on the through hole one (12) of mandrel (1) outer wall, the sidewall of mandrel (1) is provided with one end open in internal taper hole (11) below mandrel (1) centre bore, the other end is opened on the through hole two (13) of mandrel (1) outer wall.Tubing string twice under using its drifting and scraping internal surface of sleeve pipe not to need, sleeve pipe drift size gauge tool and rotary casing scraper two kinds of functions unite two into one by it, and tubing string just can complete drifting and sleeve pipe scraping two kinds of operations next time.
Description
Technical field
The utility model relates to petroleum tool, is specifically related to the instrument of a kind of drifting and scraping internal surface of sleeve pipe.
Background technology
In conventional workover treatment, drifting and scraping internal surface of sleeve pipe are carried out separately by twice flow chart.Sleeve pipe drift size gauge tool is used during drifting, it is a kind of common tool detecting latus rectum size in bore-hole line, in the casing string that can check completion with it, whether latus rectum meets standard, check whether by the instrument of preliminary dimension after casing string distortion, be well workover, operation detects requisite instrument.The object of scraping internal surface of sleeve pipe is the iron oxide etc. produced remove the cement block remained on internal surface of sleeve pipe, cement sheath, hard wax, various saline crystallization and deposit, perforation burrs and corrosion in drilling well or reconditioning work after, so that unblocked underground enters various downhole tool.Lower well tool and internal surface of sleeve pipe annular space less time, more need abundant scraping internal surface of sleeve pipe, just can carry out next step construction.At present when more domestic oil fields and external oil and water well construction operation, use scraper scraping internal surface of sleeve pipe to become a kind of requisite operation, can enter and the success rate of operation (the setting success rate etc. of such as packer) under raising instrument.In current workover treatment, drifting and scraping internal surface of sleeve pipe need to carry out operation respectively at twice; under just needing, tubing string is respectively used to drifting and scraping internal surface of sleeve pipe twice, and operational sequence is many, the cycle is long, and operating cost is high; activity duration is long, and the infringement time of workover fluid to formation protection is also longer.
Summary of the invention
The purpose of this utility model be to provide a kind of drifting and scraping internal surface of sleeve pipe do not need under tubing string twice; operational sequence is few, and the cycle is short, and operating cost is low; activity duration is short, and the multifunctional rotary sleeve pipe that the infringement time of workover fluid to formation protection can shorten leads to curette.
Technical solution of the present utility model is: it comprises mandrel and lower contact, mandrel is that upper end is provided with the internal thread be connected with tubing string, lower end is provided with external screw thread, axially there is the cylindrical body of centre bore, the lower end of mandrel is connected with the upper end of lower contact by screw thread, the upper end of mandrel is set with upper bush, the upper end of upper bush is arranged on mandrel outer wall by internal thread, upper bush to be connected with mandrel by screw thread and to be provided with slipper seal below position and to be sleeved on the piston coordinated on mandrel and with the inwall slipper seal of upper bush, be provided with below piston and be sleeved on the outer swollen and tubular that is that inside contract of elastically deformable on mandrel outer wall and scrape wall cutter, the upper semisection scraping wall cutter is sleeved in upper bush and makes to scrape the gathering of wall cutter elasticity, scrape radial direction between the upper end of wall cutter and mandrel to be provided with and to cut off, the top of lower contact is provided with lower sleeve, the lower end of lower sleeve is connected with the upper end of top connection by internal thread, the lower sleeve part be positioned at above lower contact is sleeved on the outside of scraping wall cutter and mandrel, the outer wall scraping wall cutter bottom is provided with by external screw thread the tapered sleeve being positioned at lower sleeve, tapered sleeve and scrape the lock ring be provided with between wall cutter with unidirectional external lock tooth on outer wall, below lock ring, the inwall of lower sleeve is provided with the unidirectional internal lock tooth matched with unidirectional external lock tooth, upper bush is thin by be connected with the mandrel thick lower end, mandrel centre bore upper end of position of screw thread, the upper coarse and lower fine internal taper hole matched with aboveground input plugging steel ball is provided with between butt end with taper end, the sidewall of mandrel is provided with one end open mandrel centre bore above internal taper hole, the other end is opened on mandrel and is connected with upper bush by screw thread the through hole one of mandrel outer wall below position, below piston, the sidewall of mandrel is provided with one end open mandrel centre bore below internal taper hole, the other end is opened on the through hole two of mandrel outer wall below piston.
Technique effect of the present utility model is: tubing string twice under using its drifting and scraping internal surface of sleeve pipe not to need, sleeve pipe drift size gauge tool and rotary casing scraper two kinds of functions unite two into one by it, and tubing string just can complete drifting and sleeve pipe scraping two kinds of operations next time.Reach minimizing operational sequence, the cycle is short, and operating cost is low, and the activity duration is short, and shorten the object of workover fluid to the formation protection infringement time, and can save man power and material, operating efficiency is very high.It adopts spiral spring-backed quill to scrape wall cutter, and scraping area is large, and external diameter scraping tension force is large, and shaving effect is better.Scraping wall cutter when going into the well is that rounding state is used as drift size gauge tool, can control to scrape wall cutter distending be used as scraper in down-hole, and operation controls easily, easy to use.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of the utility model embodiment.
Detailed description of the invention
As shown in Figure 1, it comprises mandrel 1 and lower contact 2, mandrel 1 is provided with the internal thread be connected with tubing string for upper end, lower end is provided with external screw thread, axially there is the cylindrical body of centre bore, the lower end of mandrel 1 is connected by the upper end of screw thread with lower contact 2, the upper end of mandrel 1 is set with upper bush 3, the upper end of upper bush 3 is arranged on mandrel 1 outer wall by internal thread, upper bush 3 to be connected with mandrel 1 by screw thread and to be provided with slipper seal below position and to be sleeved on the piston 4 coordinated on mandrel 1 and with the inwall slipper seal of upper bush 3, be provided with below piston 4 and be sleeved on the outer swollen and tubular that is that inside contract of elastically deformable on mandrel 1 outer wall and scrape wall cutter 5, the upper semisection scraping wall cutter 5 is sleeved in upper bush 3 and makes to scrape the gathering of wall cutter 5 elasticity, scrape radial direction between the upper end of wall cutter 5 and mandrel 1 to be provided with and to cut off 6, the top of lower contact 2 is provided with lower sleeve 7, the lower end of lower sleeve 7 is connected by the upper end of internal thread with top connection 2, lower sleeve 7 part be positioned at above lower contact 2 is sleeved on the outside of scraping wall cutter 5 and mandrel 1, the outer wall scraping wall cutter 5 bottom is provided with by external screw thread the tapered sleeve 8 being positioned at lower sleeve 7, tapered sleeve 8 and scrape the lock ring 9 be provided with between wall cutter 5 with unidirectional external lock tooth 91 on outer wall, below lock ring 9, the inwall of lower sleeve 7 is provided with the unidirectional internal lock tooth 71 matched with unidirectional external lock tooth 91, upper bush 3 is thin by be connected with the mandrel 1 thick lower end, mandrel 1 centre bore upper end of position of screw thread, the upper coarse and lower fine internal taper hole 11 matched with aboveground input plugging steel ball is provided with between butt end with taper end, the sidewall of mandrel 1 is provided with one end open mandrel 1 centre bore above internal taper hole 11, the other end is opened on mandrel 1 and is connected with upper bush 3 by screw thread the through hole 1 of mandrel 1 outer wall below position, below piston 4, the sidewall of mandrel 1 is provided with one end open mandrel 1 centre bore below internal taper hole 11, the other end is opened on the through hole 2 13 of mandrel 1 outer wall below piston 4.
The outer wall of tapered sleeve 8 upper end is up-thin-low-thick male cone (strobilus masculinus), and lock ring 9 inwall is the up-small and down-big inner conical surface matched with the male cone (strobilus masculinus) on tapered sleeve 8.
The outer wall coordinated on the inwall that piston 4 coordinates with the slipper seal of mandrel 1 phase and with upper bush 3 slipper seal is respectively equipped with seal groove and sealing ring 10 is installed.The outer wall that the mandrel 1 that mandrel 1 to be connected with upper bush 3 above position by screw thread and upper bush 3 are sealed and matched mutually is provided with seal groove and is provided with sealing ring 10.
Scraping the part of wall cutter 5 between upper bush 3 lower end and lower sleeve 7 upper end is the scraping section 51 that under nature, external diameter is greater than upper bush 3 external diameter and lower sleeve 7 external diameter, upper end and the bottom of scraping wall cutter 5 are respectively the closed tubular be sleeved on mandrel 1, scraping section 51 and wall cutter 5 wall portion of scraping of scraping between the upper end of wall cutter 5 and bottom are respectively equipped with many and are parallel to the band elastic groove 52 scraping wall cutter 5 axis, the wall portion of scraping wall cutter 5 scraping section 51 is provided with that many circumferences are equidirectional favours the strip helicla flute 53 scraped wall cutter 5 and axially and with the band elastic groove 52 above and below it connect respectively.The outer wall scraping wall cutter 5 above scraping section 51 is that diameter being less than scraping section 51 diameter, drawing shoulder 54 into matching with upper bush 3 inwall in upper bush 3 in scraping wall cutter 5, the outer wall scraping wall cutter 5 above shoulder 54 be up-thin-low-thick, be convenient to scrape wall cutter 5 and import outer cone spigot surface 55 in upper bush 3 lower end.The outer wall scraping wall cutter 5 scraping section 51 is circumferentially provided with many alternate grooves 56 separated of axis.The inwall scraped between the upper end of wall cutter 5 and bottom is that diameter is greater than the upper end of scraping wall cutter 5 and bottom internal diameter, is conducive to scraping that wall cutter 5 elasticity inside contracts is expanding.Mandrel 1 outer wall scraped between the upper end of wall cutter 5 and bottom is that diameter is less than mandrel 1 outer wall above and below it to coordinate the undergauge scraped wall cutter 5 elasticity and inside contract.
Lower contact 2 is that upper end inwall is provided with the internal thread hole, the outer wall that are connected with mandrel 1 and is provided with the external screw thread, the lower end inner wall that are connected with lower sleeve 7 and is provided with the internal thread hole that is connected with tubing string and the cylindrical body that is connected of internal thread hole up and down.
Cut off 6 to be arranged on radial direction by screw thread and to be located at and to scrape cutting off in screwed hole 57 on the sidewall of wall cutter 5 upper end, cut off 6 ends of matching with mandrel 1 and be inserted into cutting off in hole 14 on mandrel 1 outer wall.
Use and operating principle:
1, drifting: multifunctional rotary sleeve pipe is led to curette G.I.H and carries out drifting.Now scrape wall cutter 5 and be in rounding state, scraping section 51 external diameter is less than the diameter of upper bush 3 and lower sleeve 7, can pass through, conform to the function of conventional drift size gauge tool from instrument hydrophthalmia passage, it can check run through casing size and distortion, breakage, examines artificial bottom of a well and whether meets formation testing requirement.
2, well-flushing: under drifting duty, can carry out well cleanout and reverse cleanout.Should notice that in the process of positive well-flushing flow is too not large, in order to avoid excessive the cutting off of pressure reduction cuts off 6, enters scraper state in advance.
Scraping: from aboveground cast steel ball after, circulation fluid enters the annular space between mandrel 1 and upper bush 3 by through hole 1.Abovegroundly be forced into 9-12MPa, piston 4 promotes to scrape wall cutter 5 and cuts off mandrel 1 and scrape and cut off 6 between wall cutter 5, and piston 4 is descending, promotes to scrape wall cutter 5 descending, makes it be skidded off by the shoulder 54 that upper bush 3 internal diameter is pushed down, scrape wall cutter 5 distending and be pressed on internal surface of sleeve pipe.When piston 4 comes downwards to through hole 2 13 conducting, circulation fluid flows back to mandrel 1 centre bore, piston 4 stops descending, lock ring 9 enters unidirectional internal lock tooth 71 place of lower sleeve 7 simultaneously, lock ring 9 struts completely under the effect of tapered sleeve 8 male cone (strobilus masculinus), its unidirectional external lock tooth 91 engages with the unidirectional internal lock tooth 71 of lower sleeve 7 and pins, and scrapes wall cutter 5 and no longer moves axially, but can rotate around mandrel 1.At this moment move up and down tubing string, scrape wall cutter 5 and carry out up and down and rotate scraping.Scrape between wall cutter 5 and mandrel 1 and can rotate freely, do not have the moment unscrewing tool-joint screw thread, this scraping mode is safe and reliable.This wall cutter 5 of scraping has elasticity greatly, and scraping is clean, and scraping area is large, and do not unscrew several large advantage of tubing string, shaving effect is better.
Claims (10)
1. multifunctional rotary sleeve pipe leads to curette, it comprises mandrel (1) and lower contact (2), mandrel (1) is provided with the internal thread be connected with tubing string for upper end, lower end is provided with external screw thread, axially there is the cylindrical body of centre bore, the lower end of mandrel (1) is connected by the upper end of screw thread with lower contact (2), it is characterized in that: the upper end of mandrel (1) is set with upper bush (3), the upper end of upper bush (3) is arranged on mandrel (1) outer wall by internal thread, upper bush (3) to be connected with mandrel (1) by screw thread and to be provided with slipper seal below position and to be sleeved on the upper and piston (4) coordinated with the inwall slipper seal of upper bush (3) of mandrel (1), piston (4) below is provided with and is sleeved on the outer swollen and tubular that is that inside contract of elastically deformable on mandrel (1) outer wall and scrapes wall cutter (5), the upper semisection scraping wall cutter (5) is sleeved in upper bush (3) and makes to scrape the gathering of wall cutter (5) elasticity, scrape radial direction between the upper end of wall cutter (5) and mandrel (1) to be provided with and to cut off (6), the top of lower contact (2) is provided with lower sleeve (7), the lower end of lower sleeve (7) is connected by the upper end of internal thread with top connection (2), the part that lower sleeve (7) is positioned at lower contact (2) top is sleeved on the outside of scraping wall cutter (5) and mandrel (1), the outer wall scraping wall cutter (5) bottom is provided with by external screw thread the tapered sleeve (8) being positioned at lower sleeve (7), tapered sleeve (8) and scrape the lock ring (9) be provided with between wall cutter (5) with unidirectional external lock tooth (91) on outer wall, the inwall of lock ring (9) below lower sleeve (7) is provided with the unidirectional internal lock tooth (71) matched with unidirectional external lock tooth (91), upper bush (3) is thin by be connected with mandrel (1) the thick lower end, mandrel (1) centre bore upper end of position of screw thread, the upper coarse and lower fine internal taper hole (11) matched with aboveground input plugging steel ball is provided with between butt end with taper end, the sidewall of mandrel (1) is provided with one end open in internal taper hole (11) top mandrel (1) centre bore, the other end is opened on mandrel (1) and is connected with upper bush (3) by screw thread the through hole one (12) of mandrel (1) outer wall below position, the sidewall of piston (4) below mandrel (1) is provided with one end open in internal taper hole (11) below mandrel (1) centre bore, the other end is opened on the through hole two (13) of piston (4) below mandrel (1) outer wall.
2. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, and it is characterized in that the outer wall of described tapered sleeve (8) upper end is up-thin-low-thick male cone (strobilus masculinus), lock ring (9) inwall is the up-small and down-big inner conical surface matched with the male cone (strobilus masculinus) on tapered sleeve (8).
3. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, to it is characterized in that on the inwall that described piston (4) coordinates with mandrel (1) phase slipper seal and the outer wall that coordinates with upper bush (3) slipper seal is respectively equipped with seal groove and is provided with sealing ring (10).
4. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, it is characterized in that described mandrel (1) is provided with seal groove by the screw thread outer wall that mandrel (1) above position and upper bush (3) be sealed and matched mutually that to be connected with upper bush (3) and is provided with sealing ring (10).
5. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, scraping wall cutter (5) part be positioned between upper bush (3) lower end and lower sleeve (7) upper end described in it is characterized in that is the scraping section (51) that under nature, external diameter is greater than upper bush (3) external diameter and lower sleeve (7) external diameter, upper end and the bottom of scraping wall cutter (5) are respectively the closed tubular be sleeved on mandrel (1), scraping section (51) and wall cutter (5) wall portion of scraping of scraping between the upper end of wall cutter (5) and bottom are respectively equipped with many and are parallel to and scrape the axial band elastic groove (52) of wall cutter (5), the wall portion of scraping wall cutter (5) scraping section (51) is provided with that many circumferences are equidirectional favours the strip helicla flute (53) scraped wall cutter (5) and axially and with the band elastic groove (52) above and below it connect respectively.
6. multifunctional rotary sleeve pipe as claimed in claim 5 leads to curette, it is characterized in that outer wall that wall cutter (5) is scraped in described scraping section (51) top is that diameter being less than scraping section (51) diameter, drawing shoulder (54) into matching with upper bush (3) inwall upper bush (3) in scraping wall cutter (5), the outer wall scraping wall cutter (5) above shoulder (54) be up-thin-low-thick, be convenient to scrape the outer cone spigot surface (55) in wall cutter () 5 importing upper bush (3) lower end.
7. multifunctional rotary sleeve pipe as claimed in claim 5 leads to curette, and the outer wall scraping wall cutter (5) scraping section (51) described in it is characterized in that circumferentially is provided with many alternate grooves (56) separated of axis.
8. multifunctional rotary sleeve pipe as claimed in claim 5 leads to curette, the inwall scraped described in it is characterized in that between the upper end of wall cutter (5) and bottom is that diameter is greater than the upper end of scraping wall cutter (5) and bottom internal diameter, is conducive to scraping that wall cutter (5) elasticity inside contracts is expanding, and mandrel (1) outer wall scraped between the upper end of wall cutter (5) and bottom is that diameter is less than mandrel (1) outer wall above and below it to coordinate the undergauge scraped wall cutter (5) elasticity and inside contract.
9. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, it is characterized in that internal thread hole that described lower contact (2) is connected with mandrel (1) for upper end inwall is provided with, outer wall is provided with the external screw thread, the lower end inner wall that are connected with lower sleeve (7) and is provided with the internal thread hole that is connected with tubing string and the cylindrical body that is connected of upper and lower internal thread hole.
10. multifunctional rotary sleeve pipe as claimed in claim 1 leads to curette, cut off (6) described in it is characterized in that to be arranged on radial direction by screw thread and to be located at and to scrape cutting off in screwed hole (57) on the sidewall of wall cutter (5) upper end, cut off the end of (6) matching with mandrel (1) and be inserted into cutting off in hole (14) on mandrel (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081752.5U CN204492759U (en) | 2015-02-05 | 2015-02-05 | Multifunctional rotary sleeve pipe leads to curette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081752.5U CN204492759U (en) | 2015-02-05 | 2015-02-05 | Multifunctional rotary sleeve pipe leads to curette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492759U true CN204492759U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081752.5U Expired - Fee Related CN204492759U (en) | 2015-02-05 | 2015-02-05 | Multifunctional rotary sleeve pipe leads to curette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194111A (en) * | 2016-08-30 | 2016-12-07 | 中国石油集团渤海钻探工程有限公司 | Down-hole casing steel wire wall scraper |
| CN112647897A (en) * | 2020-12-28 | 2021-04-13 | 牡丹江通用石油工具有限公司 | Novel kelly cock valve |
-
2015
- 2015-02-05 CN CN201520081752.5U patent/CN204492759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194111A (en) * | 2016-08-30 | 2016-12-07 | 中国石油集团渤海钻探工程有限公司 | Down-hole casing steel wire wall scraper |
| CN106194111B (en) * | 2016-08-30 | 2019-02-15 | 中国石油集团渤海钻探工程有限公司 | Down-hole casing steel wire wall scraper |
| CN112647897A (en) * | 2020-12-28 | 2021-04-13 | 牡丹江通用石油工具有限公司 | Novel kelly cock valve |
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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 |
Granted publication date: 20150722 Termination date: 20160205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |