CN202064872U - Well head anti-theft pressure release well sealer - Google Patents
Well head anti-theft pressure release well sealer Download PDFInfo
- Publication number
- CN202064872U CN202064872U CN2011201204135U CN201120120413U CN202064872U CN 202064872 U CN202064872 U CN 202064872U CN 2011201204135 U CN2011201204135 U CN 2011201204135U CN 201120120413 U CN201120120413 U CN 201120120413U CN 202064872 U CN202064872 U CN 202064872U
- Authority
- CN
- China
- Prior art keywords
- central tube
- seat
- wall
- cone
- anchor
- Prior art date
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims description 30
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The pressure release well sealer is used in oil extraction in oil field. The lower end of the upper joint is connected with an annular outer anchor tile seat, and four anchor tiles are suspended on the wall of the anchor tile seat; a nut is arranged on an annular step inside the lower end of the anchor shoe seat, and the nut is arranged in a central hole at the lower end of the upper joint; the upper end of the central tube is connected to the nut in a threaded manner; the inner wall of the upper end of the central tube is provided with a polygonal axial hole; an annular valve seat is fixed through a threaded hole of the central pipe, and a steel ball and a compression spring are arranged at the lower part of the valve seat; the lower end of the central tube is connected with a bottom cone in a threaded manner, and the outer wall of the central tube is sleeved with an outer central tube; the lower end of the outer central pipe is in threaded connection with an annular rubber sleeve, a rubber sleeve and a spacer ring; the top of the upper rubber cylinder is provided with a cone sleeve. The effect is as follows: the wellhead can be effectively plugged and prevented from being stolen, the shaft is protected, and smooth oil fishing operation is ensured.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly a kind of well mouth of oil well device is the antitheft pressure blowout preventer of putting of a kind of well head.
Background technology
In the oilfield development process, part oil well low yield poor efficiency for improving its development benefit, changes its mode of production, change regular dredging vehicle into by oil pumping machine oil pumping and drag for oil, non-dragging for during the oil is because of unmanned, well head need carry out effective shutoff, and to guarantee that pit shaft is unimpeded, oil salvage operation is carried out smoothly.
At present, exist subject matter to be in the well head shutoff: because of bailing well non-drag for oil during unmanned guard, the part bailing well is by artificial destruction, the robber drags for crude oil after damaging the clay well head theft-proof box of doing of water, or in pit shaft, abandon foreign material and stop up pit shaft, or steal the simple and easy shutoff facility of well head, cause bailing well can't normally carry out oil salvage operation, even cause oil well to scrap.
The utility model content
The purpose of this utility model is: provide a kind of well head the antitheft pressure blowout preventer of putting, realize the effective shutoff of well head, pit shaft pressure release, anti-illegal mining, protection pit shaft, guarantee that oil salvage operation carries out smoothly.Overcome the bailing well well head and be damaged, cause the deficiency that normally to drag for oil even may scrap.
The technical solution adopted in the utility model is: the antitheft pressure blowout preventer of putting of well head, mainly form by base cone, packing element cover, packing element, spacer ring, exterior central tube, central tube, cone cover, anchor watt, compression spring, valve seat, anchor watt seat, nut, top connection and steel ball, there is internal thread the top connection upper end, can be connected the lower end of tubing string; It is characterized in that: anchor watt seat outside the top connection lower end is connected with an annular, on anchor watt seat wall, be hung with four anchors watt, four anchors watt are evenly distributed on the outer wall of anchor watt seat; In anchor watt inside, seat lower end ring-shaped step is arranged, have one nut is arranged on anchor watt seat lower end inner annular step, nut is in the centre bore of top connection lower end; There is external screw thread the upper end of central tube, and the upper end of central tube is threaded on the nut; The upper end inwall of central tube has polygon axial hole (key hole); There is screwed hole lower end at the polygon axial hole of central tube, and the screwed hole by central tube is fixed with an annular valve seat, and a steel ball is arranged in the bottom of valve seat, and the compression spring is arranged at the bottom of steel ball, and the other end of compression spring is on the interior step of central tube; The base cone that is threaded in the lower end of central tube is with an exterior central tube on the outer wall of central tube, the lower end of exterior central tube is on the upper surface of base cone; Be connected with an annular packing element cover at the lower end of exterior central tube screw thread, on the top of packing element cover and outer wall, be with two packing elements, between two packing elements spacer ring is arranged at exterior central tube; At the top of top packing element the cone cover is arranged, the cone set upper side is connected on the outer wall of central tube by internal thread; Between cone cover inwall and the central tube outer wall annular space is arranged, in the annular space of the upper end of exterior central tube between cone cover and central tube; There is taper seat the outer wall upper end of described cone cover, and the inclined-plane of anchor watt lower end is on the taper seat of cone cover outer wall upper end.
The operating principle of anchor portion is: in special polygon axial hole with Keying spoon insertion central tube, rotate counterclockwise private key and drive the central tube rotation, simultaneously central tube drags base cone and moves upward, and promotes packing element and move on cone is relative, and the distending anchor watt is anchored on the casing wall; Otherwise being rotated in the forward, Zhuan Yong Keying spoon can remove grappling.Because the tooth of anchor watt is directed upwardly,, moves on compressing packing element and the cone and can make the more real of anchor watt and sleeve pipe interlock if the downhole oil atmospheric pressure raises.
Need put when pressing, utilize to put and press descending the pushing open of special tool to put steel ball and open and put pressure passageway, put press finish after, lay down and put the pressure special tool, steel ball cuts out under the compression spring action automatically.
The beneficial effects of the utility model: the antitheft pressure blowout preventer of putting of the utility model well head, can realize the effective shutoff of well head, pit shaft, anti-illegal mining, protection pit shaft, guaranteed that oil salvage operation carries out smoothly.And well head is antitheft put press that blowout preventer is installed, seat envelope, pressure release be simple to operate, can be repeatedly used, and is used with the clay well head theft-proof box of doing of water, can play the double anti-theft function.
Description of drawings
Fig. 1 is that antitheft the putting of the utility model well head pressed blowout preventer structural profile schematic diagram.
Among the figure, the 1-base cone, 2-packing element cover, the 3-packing element, the 4-spacer ring, the 5-exterior central tube, the 6-central tube, 7-cone cover, 8-anchor watt, 9-compresses spring, 10-valve seat, 11-anchor watt seat, 12-nut, 13-top connection, 14-steel ball.
The specific embodiment
Embodiment 1: put so that well head is antitheft that to press blowout preventer be example, the utility model is described in further detail.
Consult Fig. 1.The antitheft pressure blowout preventer of putting of the utility model well head, mainly be made up of base cone 1, packing element cover 2, packing element 3, spacer ring 4, exterior central tube 5, central tube 6, cone cover 7, anchor watts 8, compression spring 9, valve seat 10, anchor watt seat 11, nut 12, top connection 13 and steel ball 14, there is internal thread top connection 13 upper ends.
Anchor watt seat 11 outside top connection 13 lower ends are connected with an annular is hung with watts of 8, four anchors of four anchors watts 8 and is evenly distributed on the outer wall of anchor watt seat 11 on anchor watt seat 11 walls; In inside, anchor watt seat 11 lower end ring-shaped step is arranged, have one nut 12 is arranged on anchor watt seat 11 lower end inner annular steps, nut 12 is in top connection 13 lower end centre bores.There is external screw thread the upper end of central tube 6, and the upper end of central tube 6 is threaded on the nut 12.It is the triangle axial hole that the upper end inwall of central tube 6 has cross section, and key head is a triangular shaped body.There is a screwed hole lower end at the triangle axial hole of central tube 6, screwed hole by central tube 6 is fixed with an annular valve seat 10, a steel ball 14 is arranged in the bottom of valve seat 10, a compression spring 9 is arranged at the bottom of steel ball 14, and the other end (lower end) of compression spring 9 is on the interior step of central tube 6.
The base cone 1 that is threaded in the lower end of central tube 6 is with an exterior central tube 5 on the outer wall of central tube 6, the lower end of exterior central tube 5 is on the upper surface of base cone 1.Be connected with an annular packing element cover 2 at the lower end of exterior central tube 5 screw thread, overlapping 2 top and be with on the outer wall of exterior central tube 5 between 3, two packing elements 3 of two packing elements at packing element has a spacer ring 4.Cone cover 7 is arranged at the top of top packing element 3, and cone is overlapped 7 upper ends and is connected on the outer wall of central tube 6 by internal thread.Cone is overlapped between 7 inwalls and central tube 6 outer walls annular space, and in the annular space of the upper end of exterior central tube 5 between cone cover 7 and central tube 6, can slide in annular space in the upper end of exterior central tube 5.There is taper seat the outer wall upper end of described cone cover 7, and the inclined-plane of anchor watt 8 lower ends overlaps on the taper seat of 7 outer walls upper end in cone.
Antitheft installation, oil salvage operation of pressing blowout preventer and the process of unblanking of putting of summary well head.Consult Fig. 1.
During installation, with 2 of 500mm length
7/
8" after tubing nipple connects; the G.I.H precalculated position; insert endoporus with Zhuan Yong Keying spoon; artificial center of rotation pipe 6, by the threaded function that cooperates with nut 12 drive central tube 6 and base cone 1 up, base cone 1 promotes packing element cover 2, packing element 3, spacer ring 4, packing element 3, cone 7 up distending anchors watts 8; make its grappling anchor tightly on casing wall; to continue to use Zhuan Yong Keying spoon center of rotation pipe, base cone 1 further up compression packing element 3, packing oil sets annular space.
During oil salvage operation, connect blow-down pipe, to put pressure-controlled device oil pipe pin thread docks with blowout preventer top connection oil pipe box, left-handed then push rod, push rod is descending to be pushed open and puts steel ball and open and put pressure passageway, ascending control discharging, emptying releases oil-air pressure in the pit shaft, after pressure release is finished, lay down and put the pressure-controlled device, pressure release valve is closed under 9 effects of compression spring automatically.
Insert endoporus with Zhuan Yong Keying spoon, artificial center of rotation pipe 6, descending by the threaded function drive central tube 6 and the base cone 1 that cooperate with nut 12, drive descending anchor watts 8 and the cartridge 3 of unclamping of cone 7, the antitheft pressure blowout preventer of putting of desirable well head is proposed, unimpeded pit shaft drags for oily passage, can carry out normal oil salvage operation.
Claims (1)
1. antitheft pressure blowout preventer of putting of well head, mainly be made up of base cone (1), packing element cover (2), packing element (3), spacer ring (4), exterior central tube (5), central tube (6), cone cover (7), anchor watt (8), compression spring (9), valve seat (10), anchor watt seat (11), nut (12), top connection (13) and steel ball (14), there is internal thread top connection (13) upper end; It is characterized in that: be connected with anchor watt seat (11) outside the annular in top connection (13) lower end, be hung with four anchors watt (8) on anchor watt seat (11) wall, four anchors watt (8) are evenly distributed on the outer wall of anchor watt seat (11); In anchor watt seat (11) inside, lower end ring-shaped step is arranged, have one nut (12) is arranged on the inner annular step of anchor watt seat (11) lower end, nut (12) is in the centre bore of top connection (13) lower end; There is external screw thread the upper end of central tube (6), and the upper end of central tube (6) is threaded on the nut (12); The upper end inwall of central tube (6) has the polygon axial hole; There is screwed hole lower end at the polygon axial hole of central tube (6), screwed hole by central tube (6) is fixed with an annular valve seat (10), in the bottom of valve seat (10) steel ball (14) is arranged, compression spring (9) is arranged at the bottom of steel ball (14), and the other end of compression spring (9) is on the interior step of central tube (6); The base cone (1) that is threaded in the lower end of central tube (6) is with an exterior central tube (5) on the outer wall of central tube (6), the lower end of exterior central tube (5) is on the upper surface of base cone (1); Lower end screw thread at exterior central tube (5) is connected with an annular packing element cover (2), on the top of packing element cover (2) and be with two packing elements (3) on the outer wall of exterior central tube (5), spacer ring (4) is arranged between two packing elements (3); At the top of top packing element (3) cone cover (7) is arranged, cone cover (7) upper end is connected on the outer wall of central tube (6) by internal thread; Between cone cover (7) inwall and central tube (6) outer wall annular space is arranged, in the annular space of the upper end of exterior central tube (5) between cone cover (7) and central tube (6); There is taper seat the outer wall upper end of described cone cover (7), and the inclined-plane of anchor watt (8) lower end is on the taper seat of cone cover (7) outer wall upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201204135U CN202064872U (en) | 2011-04-22 | 2011-04-22 | Well head anti-theft pressure release well sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201204135U CN202064872U (en) | 2011-04-22 | 2011-04-22 | Well head anti-theft pressure release well sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064872U true CN202064872U (en) | 2011-12-07 |
Family
ID=45058740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201204135U Expired - Lifetime CN202064872U (en) | 2011-04-22 | 2011-04-22 | Well head anti-theft pressure release well sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563944A (en) * | 2014-01-24 | 2015-04-29 | 大庆金祥寓科技有限公司 | Releasing well plugging device |
-
2011
- 2011-04-22 CN CN2011201204135U patent/CN202064872U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563944A (en) * | 2014-01-24 | 2015-04-29 | 大庆金祥寓科技有限公司 | Releasing well plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |