CN204827330U - Practical doublestage slips suspension type casing head - Google Patents
Practical doublestage slips suspension type casing head Download PDFInfo
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- CN204827330U CN204827330U CN201520601851.1U CN201520601851U CN204827330U CN 204827330 U CN204827330 U CN 204827330U CN 201520601851 U CN201520601851 U CN 201520601851U CN 204827330 U CN204827330 U CN 204827330U
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- slips
- casing head
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Abstract
The utility model provides a practical doublestage slips suspension type casing head is formed by higher level's casing head, subordinate's casing head and tray combination. In upper and lower two -stage casing head, the inner chamber of higher level's body and subordinate's body, the processing of equal top -down ground has cylinder hole and a conical bore of two different diameters, in its conical bore, all be equipped with with pan head screw, connect the slip -type hanger that several slipss that the ring is in the same place are formed, cylindrical inner hole in the slip -type hanger top all is equipped with by last clamping ring, H type sealing washer, pushes down the seal assembly that ring sum countersunk screw constitutes, in seal assembly, upward the upper chamfer department of clamping ring is all compressed tightly by many jackscrew parts of radial equipartition above higher level's body and the subordinate's body. On the baseplane of subordinate's body, WD type slips hanger with many bolt fastenings. Have that the structure is succinct, the price is lower, simple to operate, sealed characteristics such as reliable, more be fit for in the aboveground use of the oil gas of complicated hole condition.
Description
Technical field
The utility model relates to petroleum machinery, the casing head in Oil/gas Well drilling-production equipment.
Background technology
Along with the development of minimizing and the drilling and production technology day by day of oil, natural gas resource, many petroleum resourceses being difficult to exploit now list the schedule of exploitation or in; Ultradeep well, extended reach well, horizontal well, hp-ht well, small―gap suture well and the complex hole condition such as well of easily subsiding, of common occurrence, become a kind of normal phenomenon in drilling operation and work schedules.And twin-stage slips suspension type sleeve head is the main selection of reply complex hole condition; Therefore, its consumption is increasing.But W type slip-type hanger conventional in existing twin-stage slips suspension type sleeve head product, all with the component such as housing of parcel slips, also exists product structure complexity, processing difficulties, cost is comparatively large, price is higher, installs the problems such as comparatively tired.In addition, the rubber seal in many slip-type hangers, is all the gravity compressing distortion relying on sleeve pipe, seals; Once down-hole pressure changes, when the phenomenon such as there is overflow, well kick and sleeve pipe push up, sealing ring loses sealing effectiveness because losing gravity compressing, thus adds the difficulty of dealing with problems.
Summary of the invention
For the problems referred to above, the utility model takes the structure of principle and the realizing active sealing of simplifying literary writing by leaving out superfluous words, Curve guide impeller is carried out to existing twin-stage slips suspension type sleeve head product, thus reaches and simplify structure, reduce price, reduce trouble, improve the object of sealing reliability.
The utility model is formed by higher level's casing head, subordinate's casing head and tray combination; Its special feature is: in higher level's casing head and subordinate's casing head, the inner chamber of higher level's body and subordinate's body, and equal from top to down is processed with cylindrical hole and a conical bore of two different-diameters; In its conical bore, be all equipped with flat head screw be connected the ring slip-type hanger be made up of several piece slips together; In cylindrical hole above slip-type hanger, the black box be made up of upper press ring, H RunddichtringO, lower pressure ring and sunk screw is all housed; In black box, the chamfering place, top of upper press ring, all compress by many jackscrew parts of higher level's body and subordinate's body top radial equipartition.In addition, on the baseplane of subordinate's body, be fixed wtih WD type slips hanger with many bolts.
Because the utility model directly processes conical bore in the inner chamber of higher level's body and subordinate's body, the slip-type hanger of circle several piece slips composition is together directly installed in body, eliminate the component such as the housing of W series slip-type hanger, simplify product structure, and the trouble of processing and assembling.Above slip-type hanger, the black box be made up of upper press ring, H RunddichtringO, lower pressure ring and Duo Gen sunk screw is all housed; Directly oppress the sealing of H RunddichtringO with many sunk screws, make it from the impact of sleeve pipe Gravity changer, improve the reliability of sealing.On the baseplane of subordinate's body, be fixed wtih WD type slips hanger with many bolts, form pure slips suspension type sleeve head.In addition in upper and lower level body bottom cylindrical hole, all again seal with the upper end of BT sealing ring to sleeve pipe, to strengthen its sealing effectiveness, make it to be more suitable for using on the Oil/gas Well of complex hole condition.
Accompanying drawing explanation
Fig. 1 is the utility model general structure full section schematic diagram;
Fig. 2 is the schematic top plan view of connecting ring part in the utility model hanging device for slips casing.
Component title shown in attached number in the figure is as follows:
1, higher level's body, 2, subordinate's body, 3, pallet, 4, bolt, 5, WD type slips hanger, 6, BT sealing ring, 7, grease pouring valve, 8, slip-type hanger, 9, black box, 10, jackscrew parts, 11, gasket ring, 12, bolt and nut, 13, BT sealing ring, 14, slip-type hanger, 15, black box, A1, upper press ring, A2, H RunddichtringO, A3, lower pressure ring, A4, sunk screw, B1, flat head screw, B2, connecting ring, B3, slips.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model and embodiment are described further:
In Fig. 1, the utility model can be divided into higher level's casing head, subordinate's casing head and pallet three parts; Higher level's casing head is made up of higher level's body (1), grease pouring valve (7), BT sealing ring (13), slip-type hanger (14), black box (15) and jackscrew parts (10); Subordinate's casing head is made up of subordinate's body (2), bolt (4), WD type slips hanger (5), BT sealing ring (6), grease pouring valve (7), slip-type hanger (8), black box (9) and jackscrew parts (10); Below pallet (3), be the large flange of band centre bore and uniform bolt hole, above large flange, be welded with many coaxial uniform pillars.Higher level's casing head and subordinate's casing head, by its flange, be linked together with gasket ring (11) and bolt and nut (12); Subordinate's casing head and pallet (3), in its contact position, be solidified as a whole by the method for welding.
In higher level's casing head, higher level's body (1) is four-way structure: up and down two ends are flanges, on the lower planes of two end flanges, the periphery of lumen orifice, is all processed with trapezoidal gasket ring groove and many bolts hole together, is used for external connecting; Between two end flanges, it is the cylinder of three sections of different-diameters; At two end flanges and three sections of cylindrical centers, it is the inner chamber of up/down perforation; Inner chamber from top to down is processed into the cylindrical hole of two different-diameters, a conical bore and three different-diameters and with the cylindrical hole of a chamfered transition, in-built black box (15), slip-type hanger (14), BT sealing ring (13) and the sleeve pipe hung; In the circumferential edge of upper flanges, uniform the radial stepped hole of several TBE (threaded both ends), is all equipped with jackscrew parts (10), for pushing down the top of black box (15) in radial stepped hole; The cylinder both sides that one section of diameter is thicker in the middle of three sections of cylinders, are processed with two planes; In the middle part of two planes, respectively there is a side through hole communicated with inner chamber, at the side through hole mouth place of two planes, all be processed with trapezoidal gasket ring groove and many tapped blind holes together, so that with gasket ring and bolt and nut, be connected with other component such as the valve on wing passage, pressure meter assembly or crossover flanges.
In subordinate's casing head, subordinate's body (2) is also for four-way structure: upper end is flange, in the upper plane of flange, the periphery of lumen orifice, is processed with trapezoidal gasket ring groove and many bolts hole together, is used for connecting with higher level's casing head; In the below of flange, it is the cylinder of three sections of different-diameters; At upper flanges and three sections of cylindrical centers, it is the inner chamber of up/down perforation; Inner chamber from top to down is processed into the cylindrical hole of the cylindrical hole of two different-diameters, a conical bore and two different-diameters, in-built black box (9), slip-type hanger (8), BT sealing ring (6) and the sleeve pipe hung; In the circumferential edge of upper flanges, uniform the radial stepped hole of several TBE (threaded both ends), is all equipped with jackscrew parts (10), for pushing down the top of black box (9) in radial stepped hole; The cylinder both sides that one section of diameter is medium in the middle of three sections of cylinders, are processed with two planes; In the middle part of two planes, respectively there is a side through hole communicated with inner chamber, at the side through hole mouth place of two planes, all be processed with trapezoidal gasket ring groove and many tapped blind holes together, so that with gasket ring and bolt and nut, be connected with other component such as the valve on wing passage, pressure meter assembly or crossover flanges; Three sections of one section, cylinder lower end cylinders that diameter is the thickest, are arranged on the uniform pillar of pallet (3), connect with electric welding; On the baseplane of subordinate's body (2), the surrounding of lumen orifice, uniform many tapped blind holes, are fixed wtih WD type slips hanger (5) by many bolts (4), with hanging surface pipe with connecting.
The utility model, in the cylindrical bore wall of higher level's body (1) and subordinate's body (2) inner chamber bottom, is all processed with 1 ~ 2 road groove, BT sealing ring (13) and (6) is all housed in groove; In the lower end flanges of higher level's body (1) and the lower circumferential limit of subordinate's body (2), be processed with the radial small stair hole inwardly communicated with 1 ~ 2 groove all symmetrically; At the external port place in radial small stair hole, be all processed with taper thread, a grease pouring valve (7) is housed, for BT sealing ring (13) and (6) injection moulding pressurization, make it to seal the cannula end of insertion.
Slip-type hanger of the present utility model (8) and (14), formed by two flat head screws (B1), two connecting rings (B2) and several piece slips (B3); Two connecting rings divided half-and-half (B2) are inserted in the radial groove of several piece slips (B3) upper end, several piece slips (B3) is gathered, use two sunk screws (A4) by fixing for two connecting ring (B2) docking again, several piece slips (B3) is connected; Uniformly on connecting ring (B2) axial plane severally run through screwed hole, the small sircle hole uniform with several piece slips (B3) upper surface is corresponding, for connecting the rope of carrying.Slips (B3) be with one " be evenly equipped with small sircle hole above, below periphery have chamfering, centre is zigzag large through-hole; the monoblock hollow cone that periphery is taper seat, there is a radial groove upper end " cutting form, quantity 3 ~ 6 pieces, conventional 4 pieces, the shape and size of every block are identical.Connecting ring (B2) is that cutting processing into two symmetrically with one " radial section is uniform the annulus of several screwed hole on rectangle, axial plane "; In its ∫ shape incision, a slice of the inside is drilled with a radial screw bore, a slice of outside is drilled with a radial taper hole, to dock with flat head screw (B1).Polylith slips (B3) can increase the clamping effect to sleeve pipe, the flat head screw (B1) of the connecting ring be split into two halves (B2) and radial direction thereof, is very beneficial for connecting and assembling.
Black box of the present utility model (9) and (15), formed by upper press ring (A1), H RunddichtringO (A2), lower pressure ring (A3) and sunk screw (A4).The axial plane of upper press ring (A1), uniform the axial step hole of about ten, periphery has large chamfering, below in trapezoidal projection; The top and bottom of H RunddichtringO are grooves, middle uniform the axially extending bore of about ten; Lower pressure ring (A3) above in trapezoidal projection, and uniform ten Y-axises are to tapped through hole, and periphery is below processed with step and chamfering, and its thickness is greater than upper press ring (A1); The trapezoidal crowning of upper press ring (A1) and lower pressure ring (A3) is connected with the top and bottom groove of H RunddichtringO (A2), and join together with sunk screw (A4), make H RunddichtringO (A2) produce compressive strain, make it seal; The large chamfering of periphery above upper press ring (A1), with be distributed on higher level's body (1) and contact with the jackscrew parts (10) of subordinate body (2) top radial equipartition, whole black box (9) and (15) are fixed.
Slip-type hanger (8) in the utility model and (14), black box (9) and (15) two kinds of parts, respective basic structure is all identical with the kind of part, but its size is different.
Claims (5)
1. a practical twin-stage slips suspension type sleeve head, is formed by higher level's casing head, subordinate's casing head and tray combination; It is characterized in that: in higher level's casing head and subordinate's casing head, the inner chamber of higher level's body (1) and subordinate's body (2), equal from top to down is processed with cylindrical hole and a conical bore of two different-diameters; In its conical bore, the slip-type hanger (8) and (14) that form with flat head screw (B1), connecting ring (B2) circle several piece slips (B3) together are all housed; In cylindrical hole above slip-type hanger (8) and (14), the black box (9) and (15) that are made up of upper press ring (A1), H RunddichtringO (A2), lower pressure ring (A3) and sunk screw (A4) are all housed; In black box (9) and (15), the chamfering place, top of upper press ring (A1), all compress by many jackscrew parts (10) of higher level's body (1) and subordinate's body (2) top radial equipartition.
2. practical twin-stage slips suspension type sleeve head according to claim 1, it is characterized in that: on the baseplane of subordinate's body (2), the surrounding of lumen orifice, uniform many tapped blind holes, are fixed wtih WD type slips hanger (5) with many bolts (4).
3. practical twin-stage slips suspension type sleeve head according to claim 1, it is characterized in that: slips (B3) forms with one " being evenly equipped with small sircle hole above; periphery has chamfering below; centre is zigzag large through-hole, the monoblock hollow cone that periphery is taper seat, there is a radial groove upper end " cutting; Quantity 3 ~ 6 pieces, conventional 4 pieces, the shape and size of every block are identical.
4. practical twin-stage slips suspension type sleeve head according to claim 1, it is characterized in that: connecting ring (B2) is that cutting processing into two symmetrically with one " radial section is uniform the annulus of several screwed hole on rectangle, axial plane "; In its ∫ shape incision, a slice of the inside is drilled with a radial screw bore, a slice of outside is drilled with a radial taper hole.
5. practical twin-stage slips suspension type sleeve head according to claim 1, it is characterized in that: slip-type hanger (8) and (14), black box (9) and (15) two kinds of parts, respective basic structure is identical with the kind of part, but its size is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601851.1U CN204827330U (en) | 2015-08-06 | 2015-08-06 | Practical doublestage slips suspension type casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601851.1U CN204827330U (en) | 2015-08-06 | 2015-08-06 | Practical doublestage slips suspension type casing head |
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| Publication Number | Publication Date |
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| CN204827330U true CN204827330U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520601851.1U Active CN204827330U (en) | 2015-08-06 | 2015-08-06 | Practical doublestage slips suspension type casing head |
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| CN (1) | CN204827330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461160A (en) * | 2017-04-19 | 2017-12-12 | 西南石油大学 | A kind of arc form flexibility slip insert long-life casing head |
| CN110761731A (en) * | 2019-11-19 | 2020-02-07 | 威飞海洋装备制造有限公司 | Slip hanger capable of realizing automatic or manual independent excitation |
-
2015
- 2015-08-06 CN CN201520601851.1U patent/CN204827330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461160A (en) * | 2017-04-19 | 2017-12-12 | 西南石油大学 | A kind of arc form flexibility slip insert long-life casing head |
| CN110761731A (en) * | 2019-11-19 | 2020-02-07 | 威飞海洋装备制造有限公司 | Slip hanger capable of realizing automatic or manual independent excitation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |