CN204060548U - A kind of nonmetal integrated cylinder type down-hole pipe string protector - Google Patents
A kind of nonmetal integrated cylinder type down-hole pipe string protector Download PDFInfo
- Publication number
- CN204060548U CN204060548U CN201420408070.6U CN201420408070U CN204060548U CN 204060548 U CN204060548 U CN 204060548U CN 201420408070 U CN201420408070 U CN 201420408070U CN 204060548 U CN204060548 U CN 204060548U
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- nonmetal
- joint body
- interior
- gland
- pipe string
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Abstract
The utility model discloses a kind of nonmetal integrated cylinder type down-hole pipe string protector; comprise joint body; joint body is provided with internal thread and external screw thread; joint body outer wall is provided with inner sleeve; outer wall of inside race is provided with short gland, upper slip ring, nonmetal wear sleeve, downslide rotating ring and long gland from top to bottom successively; locating shoulder is provided with on joint body outer wall top; fit and locate in inner sleeve and short gland upper surface and locating shoulder bottom surface; joint body is provided with drop preventing mechanism, and long gland lower end is connected with drop preventing mechanism locates.Described drop preventing mechanism comprises interior six side's screws, and interior six side's screws are provided with an outer step and interior step, and outer step place is provided with sealing ring, and interior step place is provided with oiling plug.The utility model own loss is low, longer service life, operationally more safe and reliable, long in the underground work life-span, effectively improves the working life of down-hole string, reduces drilling cost.
Description
Technical field
The utility model belongs to drilling equipment field, is specifically related to a kind of nonmetal integrated cylinder type down-hole pipe string protector.
Background technology
In recent years, drilling well new technology development, deep-well, extended reach well, horizontal well, directional well operation are more and more extensive, along with the increase of the well bore degree of depth, drilling period increases, well track also becomes comparatively complicated, causes the fretting wear between drilling rod and sleeve pipe to increase, often occurs the situation that sleeve pipe heavy wear is even worn out in drilling process.
Casing wear can reduce Anti-collapse, the internal pressure strength of casing string, the quality of impact drilling well subsequently, completion and mining operations and safety, and the serious meeting of casing wear causes the crowded of casing string to ruin, be out of shape and leak.Because sleeve pipe can not be changed, the heavy wear of sleeve pipe often causes the early time discards of the generation of various drilling failure and Oil/gas Well, causes huge economic loss.Casing wear is a large difficult point of deep-well, ultradeep well, high angle hole, extended reach well and horizontal drilling technology.In addition, if in drilling process drilling rod and wall friction resistance excessive, drill string torque can be made too high, cause drillling tool twisting off accident, the wearing and tearing of tool joint are one of reasons of drilling rod initial failure.
At present, in order to reduce the fretting wear of drilling rod and sleeve pipe in drilling well work, the method adopted mainly contains following four kinds:
That on drilling rod body, one, installs a clock elastomeric material protects hoop, because elastomeric material is easily aging and fall block in down-hole, cause down hole problem (as bit freezing, borehole uncleanness, cause and suppress pump etc.), because elastomeric material working life in well is shorter, be not widely applied.
Two, adopt ball jacket Anti-wear Technology, on drilling rod body, overlap the sleeve of the band ball that can freely be rotated exactly.Cause the accident owing to may fall in well after ball wearing and tearing, reliability is poor, is not used widely.
Three, adopt rotating metallic cover blast joint, this blast joint is connected directly between on drill string, is avoided the wearing and tearing of tool joint and sleeve pipe, reduce drilling torque simultaneously by the slip between metal outer sliding sleeve and axle.But metal outer sliding sleeve quick abrasion, application life is not long.
Four, adopt drilling rod wear-resistant belt technology, in tool joint, be welded with a kind of wear-resisting bringing exactly avoid drilling rod to contact with the direct of sleeve pipe, although the application of this technology is comparatively extensive, grasp primarily of Anton company of the U.S..
Utility model content
The purpose of this utility model is to provide a kind of lower tubular column protector, can effectively reduce the frictional resistance of drill string rotating in drilling process, effective protection drilling rod and sleeve pipe, and self abrasion is low, has higher application life, works more safe and reliable.
For achieving the above object, technical solution adopted in the utility model is: provide a kind of nonmetal integrated cylinder type down-hole pipe string protector, comprise joint body, joint body is provided with internal thread and external screw thread, joint body outer wall is provided with inner sleeve, outer wall of inside race is provided with short gland from top to bottom successively, upper slip ring, nonmetal wear sleeve, downslide rotating ring and long gland, locating shoulder is provided with on joint body outer wall top, fit and locate in inner sleeve and short gland upper surface and locating shoulder bottom surface, joint body is provided with drop preventing mechanism, long gland lower end is connected with drop preventing mechanism locates.
As preferably, described drop preventing mechanism comprises interior six side's screws, and interior six side's screws are provided with an outer step and interior step, and outer step place is provided with sealing ring, and interior step place is provided with oiling plug.
As preferably, described long gland lower end is provided with locating hole, and locating hole coordinates with the cylindrical end of interior six side's screws.
As preferably, described joint body is provided with tapped cylinder pin hole, and cylinder pin hole coordinates with interior six side's screw thread ends, is provided with helical spring bottom cylinder pin hole and between the interior step of interior six side's screws.
As preferably, the outer wall of described nonmetal wear sleeve is provided with spiral slot or straight trough, and the inwall of inner sleeve is provided with cooling bath.
As preferably, described nonmetal wear sleeve material is the nonmetal special type composite material that most high energy bears 300 ° of C high temperature.
the beneficial effects of the utility model are:
1, nonmetal wear sleeve material of the present utility model is nonmetal special type composite material; minimum with the friction factor of inner sleeve; the inwall of inner sleeve and the rotational resistance of tool joint body also very little; caused self wearing away when nonmetal wear sleeve and inner sleeve occur to rub; there are the abrasion caused that rub in the sleeve and the sleeve pipe that are far smaller than other materials; drilling rod and inner sleeve can be protected admirably, longer service life.
2, nonmetal wear sleeve of the present utility model does not have special wearing layer, limits position by a long and short two gland, does not have hard metal object to fall into the danger of down-hole completely, operationally more safe and reliable.
3, simple, the low cost of manufacture of the utility model structure, the most high energy of nonmetal wear sleeve bears 300C
0high temperature, long in the underground work life-span, effectively improve the working life of down-hole string, reduce drilling cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the sectional drawing that the utility model is equipped with drop preventing mechanism position;
Fig. 3 is the sectional drawing that the utility model is equipped with nonmetal wear sleeve position.
Wherein: 1, joint body; 2, inner sleeve; 3, short gland; 4, upper slip ring; 5, nonmetal wear sleeve; 6, downslide rotating ring; 7, long gland; 8, drop preventing mechanism; 9, locating shoulder; 10, sealing ring; 11, interior six side's screws; 12, helical spring; 13, oiling plug; 14, locating hole; 15, cylinder pin hole.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the utility model specific embodiment and corresponding accompanying drawing, technical solutions of the utility model are clearly and completely described.
With reference to figure 1; a kind of nonmetal integrated cylinder type down-hole pipe string protector comprises joint body 1, inner sleeve 2, short gland 3, upper slip ring 4, downslide rotating ring 6, long gland 7 and drop preventing mechanism 8, and the nonmetal wear sleeve 5 that the nonmetal special type composite material bearing 300 ° of C high temperature by most high energy is made.On joint body 1, be provided with drilling rod internal thread and the external screw thread of standard, be connected with the drilling rod of upper and lower respectively.Joint body 1 is processed with a locating shoulder 9 on the cylindrical of internal threaded end certain distance, inner sleeve 2 is assembled in the corresponding outside cylinder of joint body 1, short gland 3 and upper slip ring 4 from joint body 1 male end be assembled to the locating shoulder 9 of joint body 1, short gland 3 is enclosed within the cylindrical of inner sleeve 2, nonmetal wear sleeve 5 is also assembled on the cylindrical of inner sleeve 2 from the male end joint body 1, and is located by the upper slip ring 4 of fitting with locating shoulder 9.
Downslide rotating ring 6 is arranged on the cylindrical of inner sleeve 2, long gland 7 is arranged on the cylindrical of inner sleeve 2 and joint body 1, downslide rotating ring 6 is close to the lower surface of nonmetal wear sleeve 5, long gland 7 is fitted with the lower surface of downslide rotating ring 6, and the lower end of long gland 7 is connected with the drop preventing mechanism 8 on joint body 1 locates.
With reference to figure 2, drop preventing mechanism 8 comprises interior six side's screws 11, helical spring 12, sealing ring 10 and oiling plug 13.The cylinder pin hole 15 that interior six side's screws 11 are arranged on joint body 1 with thread connecting mode is inner, and at the cylinder pin hole 15 cooperation place locating hole 14 of long gland 7 with joint body 1, the column part of interior six side's screws 11 can enter locating hole 14 and lock long gland 7.
Interior six side's screws 11 are provided with an outer step and interior step, and sealing ring 10 is positioned at outer step place and is adjacent to the inwall of long gland 7, in the cavity preventing outside mud from entering between oiling plug 13 and helical spring 12.Oiling plug 13 is positioned at the step place of six side's screw 11 outward opening ends.Helical spring 12 in interior six side's screws 11 bottom step and cylinder pin hole 15 between, make interior six side's screws 11 be unlikely to automatic pine and move back.After installing interior six side's screws 11 and helical spring 12, prevent the automatic pine of interior six side's screws 11 from moving back in oiling plug 13 place's oiling.
With reference to figure 3, the cylindrical of nonmetal wear sleeve 5 is provided with several spiral slot or straight trough, is convenient to mud flowing; The inner circle of inner sleeve 2 is provided with the undersized cooling bath in a few road, is conducive to Cooling and Lubricator friction pair.
After having assembled, nonmetal integrated cylinder type down-hole pipe string protector is connected with the drilling rod of upper and lower respectively by upper and lower connecting thread, can enter well and use.When needing dismounting, first lay down oiling plug 13 and release oil storage, then toward six side's screws 11 in precession bottom the cylinder pin hole 15 on joint body 1, make the column part of interior six side's screws 11 exit the locating hole 14 of long gland 7, just can remove long part such as gland 7 grade.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (6)
1. a nonmetal integrated cylinder type down-hole pipe string protector; it is characterized in that: comprise joint body; joint body is provided with internal thread and external screw thread; joint body outer wall is provided with inner sleeve; outer wall of inside race is provided with short gland, upper slip ring, nonmetal wear sleeve, downslide rotating ring and long gland from top to bottom successively; locating shoulder is provided with on joint body outer wall top; fit and locate in inner sleeve and short gland upper surface and locating shoulder bottom surface; joint body is provided with drop preventing mechanism, and long gland lower end is connected with drop preventing mechanism locates.
2. nonmetal integrated cylinder type down-hole pipe string protector according to claim 1; it is characterized in that: described drop preventing mechanism comprises interior six side's screws; interior six side's screws are provided with an outer step and interior step, and outer step place is provided with sealing ring, and interior step place is provided with oiling plug.
3. nonmetal integrated cylinder type down-hole pipe string protector according to claim 1 and 2, is characterized in that: described long gland lower end is provided with locating hole, and locating hole coordinates with the cylindrical end of interior six side's screws.
4. nonmetal integrated cylinder type down-hole pipe string protector according to claim 1 and 2; it is characterized in that: described joint body is provided with tapped cylinder pin hole; cylinder pin hole coordinates with interior six side's screw thread ends, is provided with helical spring bottom cylinder pin hole and between the interior step of interior six side's screws.
5. nonmetal integrated cylinder type down-hole pipe string protector according to claim 1, is characterized in that: the outer wall of described nonmetal wear sleeve is provided with spiral slot or straight trough, and the inwall of inner sleeve is provided with cooling bath.
6. nonmetal integrated cylinder type down-hole pipe string protector according to claim 1 or 5, is characterized in that: described nonmetal wear sleeve material is the nonmetal special type composite material that most high energy bears 300 ° of C high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408070.6U CN204060548U (en) | 2014-07-23 | 2014-07-23 | A kind of nonmetal integrated cylinder type down-hole pipe string protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408070.6U CN204060548U (en) | 2014-07-23 | 2014-07-23 | A kind of nonmetal integrated cylinder type down-hole pipe string protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204060548U true CN204060548U (en) | 2014-12-31 |
Family
ID=52202087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420408070.6U Expired - Fee Related CN204060548U (en) | 2014-07-23 | 2014-07-23 | A kind of nonmetal integrated cylinder type down-hole pipe string protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204060548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11529012B2 (en) | 2019-05-13 | 2022-12-20 | Instant Brands Inc. | Electric pressure cooker |
-
2014
- 2014-07-23 CN CN201420408070.6U patent/CN204060548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11529012B2 (en) | 2019-05-13 | 2022-12-20 | Instant Brands Inc. | Electric pressure cooker |
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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: 20141231 Termination date: 20160723 |