CN201334878Y - Anti-wear adjusting pup joint - Google Patents
Anti-wear adjusting pup joint Download PDFInfo
- Publication number
- CN201334878Y CN201334878Y CNU2009203001867U CN200920300186U CN201334878Y CN 201334878 Y CN201334878 Y CN 201334878Y CN U2009203001867 U CNU2009203001867 U CN U2009203001867U CN 200920300186 U CN200920300186 U CN 200920300186U CN 201334878 Y CN201334878 Y CN 201334878Y
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- CN
- China
- Prior art keywords
- abrasionproof
- lining
- pressure testing
- wear
- abrasionproof lining
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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
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Abstract
The utility model relates to a device for preventing the wear damage of a wellhead casing in the petroleum drilling process, in particular to an anti-wear adjusting pup joint which comprises a tubular body and an anti-wear lining, wherein an upper flange is arranged at the upper part of the tubular body, the anti-wear lining is suspended inside the cavity of the upper part of the tubular body, a lower flange is arranged at the lower part of the tubular body, the upper part of the casing is positioned inside the cavity of the lower part of the tubular body, the inner diameter of the anti-wear lining is less than that of the cashing, a bench is formed on the outer surface of the middle part of the anti-wear lining, and an anti-wear lining suspension plane is arranged at the upper part of the tubular body. The anti-wear adjusting pup joint has the advantages of reasonable and compact structure and easy use, and can effectively solve the eccentric wear problem of the wellhead casing. By periodically replacing the anti-wear lining, the anti-wear adjusting pup joint can be repeatedly used. The pressure release between the interior and the exterior of the casing is avoided by means of a rubber ring primary seal and a grease-injection auxiliary seal, thereby ensuring excellent sealing property. By arranging a pressure-test plugging device sealing plane at the upper part of the cavity and arranging a pressure-test plugging device, the pressure test of a well control device is kept at a rated value, thereby preventing the potential safety hazard caused by the pressure test with lifting rubber. The anti-wear adjusting pup joint has the characteristics of easy operation, high safety and good economic effect and durability.
Description
One, technical field
The utility model relates to the device that prevents the well head casing wear in the oil drilling, is that a kind of abrasionproof is adjusted pipe nipple.
Two, background technology
At present in the oil drilling work progress; well head casing wear problem is ubiquity in deep-well, ultradeep well drilling process; the abrasionproof lining internal diameter of installing on the casing head is bigger than casing inner diameter at present; the abrasionproof lining does not have the effect of protective casing; the drilling tool sleeve pipe that directly rubs when creeping into; prolongation along with drilling time; the drilling tool rotation is to the increasing of casing wear degree; cause well head sleeve pipe eccentric wear; the casing wall thickness attenuation; the yield strength of sleeve pipe, collapsoing strength, internal pressure strength, the corresponding reduction of tensile strength finally cause sleeve pipe to damage.Use the method that lifts the plug pressure testing in addition, make the well control device pressure testing not keep a rated value, have bigger potential safety hazard.
Three, summary of the invention
The utility model provides a kind of abrasionproof to adjust pipe nipple, and its abrasionproof lining that has solved existing casing head does not work, exists the problem of potential safety hazard.
The technical solution of the utility model realizes by following measure: a kind of abrasionproof is adjusted pipe nipple, comprises body and abrasionproof lining; Upper flange is arranged at body top, and the abrasionproof lining is suspended in the inner chamber on body top; Lower flange is arranged at the body bottom, and sleeve pipe top is in the inner chamber of body bottom; The internal diameter of abrasionproof lining is less than the internal diameter of sleeve pipe, and abrasionproof lining middle part external surface has step, and tube cavity top has the abrasionproof lining to hang face, and the abrasionproof lining hangs on the abrasionproof lining suspension face by step.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can be evenly equipped with on the above-mentioned abrasionproof lining and be no less than two L shaped hanging holes, pressure testing blanking plug bottom can have and the corresponding hanging head of L shaped hanging hole, and this hanging head can make the abrasionproof lining be suspended on the inner chamber on body top or takes out from the inner chamber on body top from putting into L shaped hanging hole and be stuck in L shaped hanging hole after rotation.
Pressure testing blanking plug seat front cover can be arranged at the tube cavity top that above-mentioned abrasionproof lining hangs the face below, and pressure testing blanking plug lower end can be sitting on the pressure testing blanking plug seat front cover.
Can have on the inwall of above-mentioned lower flange to be no less than one seal groove, in seal groove, be equipped with can with the sealing ring of bobbin seal.
On the inwall of above-mentioned and the corresponding lower flange of sleeve position the grease seal groove that is no less than can be arranged, between the lateral surface of lower flange and the grease seal groove greasing passage be arranged, the greasing mouth be arranged in the outer end of greasing passage.
On the inwall of above-mentioned below seal groove and the corresponding lower flange of sleeve position the pressure testing groove that is no less than can be arranged, between the lateral surface of lower flange and the pressure testing groove pressure testing passage be arranged, the pressure testing mouth be arranged in the outer end of pressure testing passage.
Above-mentioned abrasionproof lining outer surface of upper can be fluted, can have between the lateral surface of upper flange and the inner chamber of upper flange to be no less than one the screw that runs through, and jackscrew is housed in the screw, and the jackscrew top is stuck in the groove to prevent that the abrasionproof lining from sliding up and down.
The upper surface of above-mentioned upper flange is or/and the lower surface of lower flange can be equipped with gasket ring.
Above-mentioned upper flange can be connected with drilling spool by bolt, and lower flange can be connected with casing head by bolt.
The utility model reasonable and compact in structure, easy to use, it efficiently solves the problem of well head sleeve pipe eccentric wear, by periodic replacement abrasionproof lining, can use repeatedly; Guest performer's pressure in the sleeve pipe, sealing performance excellence have been avoided by cushion rubber primary seal and the secondary sealing of greasing; Pressure testing blanking plug seat front cover by inner chamber top and be equipped with the pressure testing blanking plug makes the well control device pressure testing keep rated value, has stopped to use to lift the potential safety hazard that the plug pressure testing brings, and has the characteristics of simple to operation, safe ready, economy and durability.
Four, description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is the main TV structure schematic diagram of abrasionproof lining of the present utility model.Accompanying drawing 3 is the plan structure schematic diagram of accompanying drawing 2.
Accompanying drawing 4 is looked the sectional structure schematic diagram for the master of pressure testing blanking plug of the present utility model.
Coding in the accompanying drawing is respectively: 1 is body, and 2 is the abrasionproof lining, and 3 is upper flange, 4 is lower flange, and 5 is sleeve pipe, and 6 is step, 7 for the abrasionproof lining hangs face, and 8 is L shaped hanging hole, and 9 are the pressure testing blanking plug, 10 is hanging head, and 11 are pressure testing blanking plug seat front cover, and 12 is seal groove, 13 is the grease seal groove, 14 are the greasing passage, and 15 are the greasing mouth, and 16 are the pressure testing groove, 17 are the pressure testing passage, 18 are the pressure testing mouth, and 19 is groove, and 20 is jackscrew, 21 is gasket ring, 22 is bolt, and d is the internal diameter of abrasionproof lining, and D is the internal diameter of sleeve pipe.
Five, 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.
Below in conjunction with most preferred embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this abrasionproof adjustment pipe nipple comprises body 1 and abrasionproof lining 2; Upper flange 3 is arranged at body 1 top, and abrasionproof lining 2 is suspended in the inner chamber on body 1 top; Lower flange 4 is arranged at body 1 bottom, and sleeve pipe 5 tops are in the inner chamber of body 1 bottom; The inner diameter d of abrasionproof lining is less than the inside diameter D of sleeve pipe, and abrasionproof lining 2 middle part external surfaces have step 6, and body 1 inner chamber top has the abrasionproof lining to hang face 7, and abrasionproof lining 2 hangs over the abrasionproof lining by step 6 and hangs on the face 7.The inner diameter d of abrasionproof lining can be avoided the direct wear sleeve 5 of drilling tool less than the inside diameter D of sleeve pipe, and body 1 can be selected EE level low alloy stainless steel for use, improves acid-resisting corrosivity, not only hydrogen sulfide corrosion resistant but also carbon dioxide corrosion-resistant.
Can above-mentioned abrasionproof be adjusted pipe nipple make further optimization and/or improvements according to actual needs:
As shown in Figure 1, be evenly equipped with on the abrasionproof lining 2 and be no less than two L shaped hanging holes 8, pressure testing blanking plug 9 bottoms have and L shaped hanging hole 8 corresponding hanging heads 10,, this hanging head 10 can make abrasionproof lining 2 be suspended on the inner chamber on body 1 top or takes out from the inner chamber on body 1 top from putting into L shaped hanging hole 8 and be stuck in L shaped hanging hole 8 after rotation.L shaped hanging hole 8 is preferably three, and is stressed even to guarantee.Pressure testing blanking plug 9 is existing known technology, but the utility model has increased the hanging head 10 that is connected with abrasionproof lining 2, make existing known pressure testing blanking plug become the instrument of sending into or taking out of abrasionproof lining 2, and the pressure testing that has kept the pressure testing blanking plug stops up function, and abrasionproof lining 2 instrument sending into or take out just becomes as a whole with existing known pressure testing blanking plug like this.
As shown in Figure 1, pressure testing blanking plug seat front cover 11 is arranged at the body 1 inner chamber top that the abrasionproof lining hangs face 7 belows, pressure testing blanking plug 9 lower ends can be sitting on the pressure testing blanking plug seat front cover 11, can make well control device carry out the pressure testing operation by pressure testing blanking plug 9 at rated value, stopped to use to lift the accident risk that the plug pressure testing brings, improved the well control safety.
As shown in Figure 1, the seal groove 12 that is no less than is arranged on the inwall of lower flange 4, in seal groove 12, be equipped with can with the sealing ring of sleeve pipe 5 sealing.Seal groove 12 is preferably two, and is good to guarantee sealing.
As shown in Figure 1, and on the inwall of the corresponding lower flange 4 in sleeve pipe 5 positions the grease seal groove 13 that is no less than is arranged, between the lateral surface of lower flange 4 and the grease seal groove 13 greasing passage 14 is arranged, greasing mouth 15 is arranged in the outer end of greasing passage 14.Grease seal groove 13 is preferably two, and is good to guarantee sealing.By rubber primary seal and the secondary sealing of greasing, prevented that effectively the guest performer presses in the sleeve pipe 5.
As shown in Figure 1, on below the seal groove 12 and the inwall corresponding lower flange 4 in sleeve pipe 5 positions, the pressure testing groove 16 that is no less than is arranged, between the lateral surface of lower flange 4 and the pressure testing groove 16 pressure testing passage 17 is arranged, pressure testing mouth 18 is arranged in the outer end of pressure testing passage 17.
As shown in Figure 1, abrasionproof lining 2 outer surface of upper fluted 19, have between the inner chamber of the lateral surface of upper flange 3 and upper flange 3 to be no less than one the screw that runs through, jackscrew 20 is housed in the screw, jackscrew 20 tops are stuck in the groove 19 to prevent that abrasionproof lining 2 from sliding up and down.Take abrasionproof lining 2 in the time of so just can preventing to make a trip out of and destroy pressure testing blanking plug seat front cover 11.
As shown in Figure 1, the lower surface of the upper surface of upper flange 3 and lower flange 4 is equipped with gasket ring 21 simultaneously, and perhaps only the upper surface of upper flange 3 is equipped with gasket ring 21, and perhaps only the lower surface of lower flange 4 is equipped with gasket ring 21.
As shown in Figure 1, upper flange 3 is connected with drilling spool by bolt 22, and lower flange 4 is connected with casing head by bolt 22.
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 course of work of the utility model most preferred embodiment is: at first body 1 is sat and be placed on the sleeve pipe 5, with bolt 22 lower flange 4 and casing head are connected, will fill with grease in the greasing mouth 15 again, with bolt 22 upper flange 3 and drilling spool are connected and get final product.After wellhead assembly all installs, abrasionproof lining 2 is packed in the inner chamber on body 1 top,, when the needs pressure testing, transfer loose jackscrew 20, take out abrasionproof lining 2, load onto existing known pressure testing blanking plug 9 and can begin pressure testing by jackscrew 20 locking abrasionproof linings 2.
Claims (10)
1, a kind of abrasionproof is adjusted pipe nipple, it is characterized in that comprising body and abrasionproof lining; Upper flange is arranged at body top, and the abrasionproof lining is suspended in the inner chamber on body top; Lower flange is arranged at the body bottom, and sleeve pipe top is in the inner chamber of body bottom; The internal diameter of abrasionproof lining is less than the internal diameter of sleeve pipe, and abrasionproof lining middle part external surface has step, and tube cavity top has the abrasionproof lining to hang face, and the abrasionproof lining hangs on the abrasionproof lining suspension face by step.
2, abrasionproof according to claim 1 is adjusted pipe nipple, it is characterized in that being evenly equipped with on the abrasionproof lining and be no less than two L shaped hanging holes, pressure testing blanking plug bottom has and the corresponding hanging head of L shaped hanging hole, and this hanging head can make the abrasionproof lining be suspended on the inner chamber on body top or takes out from the inner chamber on body top from putting into L shaped hanging hole and be stuck in L shaped hanging hole after rotation.
3, abrasionproof according to claim 2 is adjusted pipe nipple, it is characterized in that pressure testing blanking plug seat front cover is arranged at the tube cavity top of abrasionproof lining suspension face below, and pressure testing blanking plug lower end can be sitting on the pressure testing blanking plug seat front cover.
4, adjust pipe nipples according to claim 1 or 2 or 3 described abrasionproofs, it is characterized in that having on the inwall of lower flange being no less than one seal groove, in seal groove, be equipped with can with the sealing ring of bobbin seal.
5, abrasionproof according to claim 4 is adjusted pipe nipple, it is characterized in that on the inwall with the corresponding lower flange of sleeve position the grease seal groove that is no less than being arranged, between the lateral surface of lower flange and the grease seal groove greasing passage is arranged, the greasing mouth is arranged in the outer end of greasing passage.
6, abrasionproof according to claim 5 is adjusted pipe nipple, it is characterized in that on below the seal groove and the inwall corresponding lower flange of sleeve position, the pressure testing groove that is no less than being arranged, between the lateral surface of lower flange and the pressure testing groove pressure testing passage is arranged, the pressure testing mouth is arranged in the outer end of pressure testing passage.
7, adjust pipe nipple according to claim 1 or 2 or 3 described abrasionproofs, it is characterized in that abrasionproof lining outer surface of upper is fluted, have between the lateral surface of upper flange and the inner chamber of upper flange and be no less than one the screw that runs through, jackscrew is housed in the screw, and the jackscrew top is stuck in the groove to prevent that the abrasionproof lining from sliding up and down.
8, abrasionproof according to claim 6 is adjusted pipe nipple, it is characterized in that abrasionproof lining outer surface of upper is fluted, have between the lateral surface of upper flange and the inner chamber of upper flange and be no less than one the screw that runs through, jackscrew is housed in the screw, and the jackscrew top is stuck in the groove to prevent that the abrasionproof lining from sliding up and down.
9, abrasionproof according to claim 8 is adjusted pipe nipple, it is characterized in that the upper surface of upper flange or/and the lower surface of lower flange is equipped with gasket ring.
10, abrasionproof according to claim 9 is adjusted pipe nipple, it is characterized in that upper flange is connected with drilling spool by bolt, and lower flange is connected with casing head by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203001867U CN201334878Y (en) | 2009-01-12 | 2009-01-12 | Anti-wear adjusting pup joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203001867U CN201334878Y (en) | 2009-01-12 | 2009-01-12 | Anti-wear adjusting pup joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334878Y true CN201334878Y (en) | 2009-10-28 |
Family
ID=41286528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009203001867U Expired - Fee Related CN201334878Y (en) | 2009-01-12 | 2009-01-12 | Anti-wear adjusting pup joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334878Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096333A (en) * | 2020-09-30 | 2020-12-18 | 中国石油天然气集团有限公司 | Well plugging device upper step protection device and method for rapidly judging wear degree |
-
2009
- 2009-01-12 CN CNU2009203001867U patent/CN201334878Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096333A (en) * | 2020-09-30 | 2020-12-18 | 中国石油天然气集团有限公司 | Well plugging device upper step protection device and method for rapidly judging wear degree |
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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: 20091028 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |