CN207111039U - A kind of dead well safety and environmental protection device - Google Patents
A kind of dead well safety and environmental protection device Download PDFInfo
- Publication number
- CN207111039U CN207111039U CN201720756093.XU CN201720756093U CN207111039U CN 207111039 U CN207111039 U CN 207111039U CN 201720756093 U CN201720756093 U CN 201720756093U CN 207111039 U CN207111039 U CN 207111039U
- Authority
- CN
- China
- Prior art keywords
- anchor
- environmental protection
- central tube
- valve
- protection device
- 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 - Fee Related
Links
- 230000007613 environmental effect Effects 0.000 title claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 19
- 238000004873 anchoring Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
A kind of dead well safety and environmental protection device disclosed in the utility model includes closing well main body, and closing well main body includes anchoring device and packing element, and anchoring device includes anchor cylinder and central tube, and anchor cylinder is connected through a screw thread with central tube；That is interrupted on anchor cylinder is provided with windowing, and anchor tooth is provided with the windowing, is provided with cone below anchor tooth, the side inclined-plane of anchor tooth is engaged with the inclined-plane of cone；It is against below cone on packing element, cone and packing element are enclosed on central tube.By pivot pipe, packing element and anchor tooth is squeezed in realization on the borehole wall and is set, carried out lower tubular column operation without employing Downhole Construction troop, expense is low, flexibly and easily.When need to release closing well state, central tube is reversely rotated, then device is unsealed.
Description
Technical field
The utility model belongs to oil extraction in oil field engineering device technique field, and in particular to a kind of dead well safety and environmental protection device.
Background technology
In oilfield process, oil-water well is often because a variety of causes stops producing；If closing well control is taken to arrange not in time
Apply, can be overflowed because of the effect of strata pressure, oil gas water from well head, cause environmental pollution.Therefore closing well measure need to be taken, prevented
Oil gas water overflows, and protects resource and environment；Debris is thrown away into well prevented also from someone and block pit shaft, increase follow-up well-repairing work
Amount.
Occurred in the prior art using production tree or the wellhead assembly closing well of wellhead cap, which by undesirable's valve opening
Drain the oil, steal wellhead assembly；The closing well method being welded using well head, it may appear that built the pressure in well, follow-up well head is difficult to open, and produces
Potential safety hazard；Closing well will be realized to underground under bridging plug using job execution troop on the downhole closing of routine, which needs to use
Professional construction troop and heavy equipment, operating expenses is big, and need to report plan row's duration, it is impossible to implements at any time, very flexible.
Utility model content
The purpose of this utility model is to provide a kind of dead well safety and environmental protection device, solved in well away from well head number meter
Depth, artificial closing well is realized, prevent oil gas water from overflowing, bear down-hole high pressure.
Technical scheme is used by the utility model：Including closing well main body, closing well main body includes anchoring device and packing element,
Anchoring device and packing element are mutually socketed, and anchoring device includes anchor cylinder and central tube, is fixedly connected between anchor cylinder and central tube；Anchor cylinder
Interior to be provided with anchor tooth, the outer wall of anchor cylinder is provided with multiple holes, and the outer wall of anchor tooth is provided with some rib teeth, and the rib dental inlay is in the outer of anchor cylinder
In hole on wall, cone is provided with below anchor tooth, the side inclined-plane of anchor tooth is engaged with the inclined-plane of cone；Glue is against below cone
On cylinder, cone and packing element are enclosed on central tube.
The characteristics of the utility model, also resides in,
One end of cone is cylindrical, and the other end is coniform in what is stood upside down.
Anchor tooth spring is provided between anchor cylinder and anchor tooth.
Closing well main body also includes envelope pressure device, and envelope pressure device includes valve pocket and compression spring sleeve, and valve pocket passes through screw thread and central tube
Connection, the lower section of valve pocket are connected by screw thread with compression spring sleeve, and valve seat, valve body and valve spring are sequentially provided with valve pocket；During valve seat is embedded in
The lower end of heart pipe, valve body are connected by screw thread with central tube, and valve ball is provided between valve seat and valve body, and valve spring one end is against valve ball
On, the other end is against in compression spring sleeve.
Also include well head helmet device, well head helmet device includes cap base and cap main body, and cap main body is enclosed in cap base.
Annular groove is provided with cap base；Closing piece is provided with cap main body；The closing piece is stuck in the annular groove of cap base.
Closing piece spring is provided with below closing piece.
Central tube top sets groove.
Also include operation instrument, operation instrument includes outer barrel and inner cylinder；Outer barrel and inner cylinder are tubular body；Outer barrel lower end is set
There is internal thread, the outer barrel is threadedly coupled with anchor cylinder；The lower end of inner cylinder is provided with the boss being engaged with central tube upper recess.
The beneficial effects of the utility model are：A kind of dead well safety and environmental protection device of the utility model is revolved by operation instrument
Turn central tube, the packing element of closing well and anchor tooth is squeezed in realization on the borehole wall and is set, carried out without employing Downhole Construction troop
Lower tubular column operation is played, expense is low, flexibly and easily.When need to release closing well state, central tube is reversely rotated, then device is unsealed.
There is following remarkable advantage compared with prior art：1. closing well and it can drive a well at any time, it is not necessary to employ Downhole Construction troop and enter
Lower tubular column operation is gone, expense is low, flexibly and easily；2. there is pressure release tapping function, safety and environmental protection.
Brief description of the drawings
Fig. 1, it is a kind of structural representation of dead well safety and environmental protection device of the utility model；
Fig. 2, it is a kind of main body partial structural diagram of dead well safety and environmental protection device of the utility model；
Fig. 3, it is a kind of well head helmet partial structural diagram of dead well safety and environmental protection device of the utility model.
In figure, 1. anchoring devices, 2. packing elements, 3. envelope pressure devices, 4. well head helmet devices, 101. anchor cylinders, 102. central tubes,
103. anchor tooth, 104. cones, 105. anchor tooth springs, 106. rib teeth, 301. valve pockets, 302. valve seats, 303. valve balls, 304. valve bodies,
305. valve springs, 306. compression spring sleeves, 401. cap bases, 402. cap main bodies, 403. closing pieces, 404. closing piece springs.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of dead well safety and environmental protection device, as shown in figure 1, anchoring device 1, packing element 2, envelope pressure
Device 3 and well head helmet 4.As shown in Fig. 2 the anchoring device 1 of closing well main body includes anchor cylinder 101 and central tube 102, anchor cylinder 101
It is connected through a screw thread with central tube 102；Anchor tooth 103 is provided with anchor cylinder 101, the outer wall of anchor cylinder 101 is provided with multiple holes, anchor tooth
103 outer wall is provided with some rib teeth 106, and in the hole on the outer wall of anchor cylinder 101, the lower section of anchor tooth 103 is provided with the rib tooth 106
Cone 104, the side inclined-plane of anchor tooth 103 are engaged with the inclined-plane of cone 104；The lower section of cone 104 is against on packing element 2, cone
104 and packing element 2 be enclosed on central tube 102.
One end of cone 104 is cylindrical, and the other end is coniform in what is stood upside down.
Anchor tooth spring 105 is provided between anchor cylinder 101 and anchor tooth 103.
Envelope pressure device 3 includes valve pocket 301 and compression spring sleeve 306, and valve pocket 301 is connected by screw thread with central tube 102, valve pocket
301 lower section is connected by screw thread with compression spring sleeve 306, and valve seat 302, valve body 304 and valve spring 305 are sequentially provided with valve pocket 301；Valve
Seat 302 is embedded in the lower end of central tube 102, and valve body 304 is connected by screw thread with central tube 102, between valve seat 302 and valve body 304
Provided with valve ball 303, the one end of valve spring 305 is against on valve ball 303, and the other end is against in compression spring sleeve 306.
As shown in figure 3, well head helmet device 4, well head helmet device includes cap base 401 and cap main body 402, cap base
401 are enclosed in cap main body 402.Annular groove is provided with cap base 401；Closing piece 403 is provided with cap main body 402；Closing piece 403 is stuck in
In the annular groove of cap base 401.Closing piece spring 404 is provided between closing piece 403 and cap main body 402.
The top of central tube 102 sets groove.Also operation instrument, operation instrument include outer barrel and inner cylinder；Outer barrel and inner cylinder are
Tubular body；Outer barrel lower end is provided with internal thread, and the outer barrel is threadedly coupled with anchor cylinder 101；The lower end of inner cylinder be provided with central tube 102
Hold the boss of fit depressions.
In use, by after the outer barrel connection in the upper end and operation instrument of anchor cylinder 101, you can place a device into pit shaft,
Outer barrel upper end in operation instrument is hung on well head, plays a part of fixing device.Inner cylinder in tripping in operation instrument, operative employee
The projection of inner cylinder lower end in tool and the groove grafting on the top of central tube 102.Inner cylinder in turn operation instrument, central tube 102
Concomitant rotation, it is threadedly coupled between central tube 102 and anchor cylinder 101, central tube 102 is up relative to anchor cylinder 101, compresses packing element 2,
Making 104 outer swelling pressure of anchor tooth by cone 103, closing well main body is fixed in well, and realization is set, and pit shaft is closed on the borehole wall.With
When closing well and drive a well, it is not necessary to employ Downhole Construction troop and carried out lower tubular column operation, expense is low, flexible.
When needing to solve shut-in well, well head helmet device 4 is first taken away, then tripping in bleeds off pressure pipe and is connected with the upper end of central tube 102, rotation
Relay pressure pipe, you can pressure valve ball 303, well liquid is entered through valve pocket 301 and bleed off pressure pipe, the sebific duct most connected afterwards through bleeding off pressure pipe upper end
Flow into tank car, realize the purpose of pressure release.After bleeding off pressure end, then the inner cylinder in tripping in operation instrument and the grafting of central tube 102, instead
To rotation inner cylinder, anchor tooth 104 and packing element 2 are retracted, you can deblocking retraction mechanism.
A kind of dead well safety and environmental protection device of the present utility model, by operation instrument pivot pipe, makes packing element and anchor
Tooth is squeezed in realization on the borehole wall and set, and lower tubular column operation has been carried out without employing Downhole Construction troop, and expense is low, flexibly side
Just.When need to release closing well state, central tube is reversely rotated, then device is unsealed.Have compared with prior art following notable
Advantage：1. closing well and it can drive a well at any time, it is not necessary to employ Downhole Construction troop and carried out lower tubular column operation, expense is low, flexibly
It is convenient；2. can be set in the pit shaft below several meters, prevent undesirable from destroying；3. well head installs helmet additional, prevent from being thrown in well
Enter debris.4. there is pressure release tapping function, safety and environmental protection.
Claims (9)
1. a kind of dead well safety and environmental protection device, including closing well main body, the closing well main body includes anchoring device (1) and packing element
(2), anchoring device (1) and packing element (2) are mutually socketed, it is characterised in that the anchoring device (1) include anchor cylinder (101) and in
Heart pipe (102), it is fixedly connected between the anchor cylinder (101) and central tube (102)；Anchor tooth is provided with the anchor cylinder (101)
(103), the outer wall of the anchor cylinder (101) is provided with multiple holes, and the outer wall of the anchor tooth (103) is provided with some rib teeth (106),
The rib tooth (106) is provided with cone (104), the anchor in the hole on the outer wall of anchor cylinder (101) below the anchor tooth (103)
The side inclined-plane of tooth (103) is engaged with the inclined-plane of cone (104)；It is against below the cone (104) on packing element (2), institute
State cone (104) and packing element (2) is enclosed on central tube (102).
2. a kind of dead well safety and environmental protection device as claimed in claim 1, it is characterised in that one end of the cone (104) is in
Cylindric, the other end is coniform in what is stood upside down.
3. a kind of dead well safety and environmental protection device as claimed in claim 1, it is characterised in that the anchor cylinder (101) and the anchor
Anchor tooth spring (105) is provided between tooth (103).
4. a kind of dead well safety and environmental protection device as claimed in claim 1, it is characterised in that the closing well main body also includes envelope pressure
Device (3), the envelope pressure device (3) include valve pocket (301) and compression spring sleeve (306), and the valve pocket (301) passes through screw thread and center
(102) connection is managed, the lower section of the valve pocket (301) is connected by screw thread with compression spring sleeve (306), in the valve pocket (301) successively
Provided with valve seat (302), valve body (304) and valve spring (305)；The valve seat (302) is embedded in the lower end of central tube (102), the valve
Body (304) is connected by screw thread with central tube (102), and valve ball (303), institute are provided between the valve seat (302) and valve body (304)
State valve spring (305) one end to be against on valve ball (303), the other end is against in compression spring sleeve (306).
5. a kind of dead well safety and environmental protection device as described in claim 1-4 any one, it is characterised in that also protected including well head
Cap device (4), the well head helmet device include cap base (401) and cap main body (402), and the cap base (401) is enclosed on cap
In main body (402).
6. a kind of dead well safety and environmental protection device as claimed in claim 5, it is characterised in that set in the cap base (401)
There is annular groove；Closing piece (403) is provided with the cap main body (402)；The closing piece (403) is stuck in the annular groove of cap base (401).
7. a kind of dead well safety and environmental protection device as claimed in claim 6, it is characterised in that be provided with lock below closing piece (403)
Block spring (404).
A kind of 8. dead well safety and environmental protection device as described in claim 1-4 any one, it is characterised in that the central tube
(102) top opens up groove.
9. a kind of dead well safety and environmental protection device as claimed in claim 8, it is characterised in that described also including operation instrument
Operation instrument includes outer barrel and inner cylinder；Described outer barrel and inner cylinder is tubular body；Described outer barrel lower end is provided with internal thread, should
Outer barrel is threadedly coupled with anchor cylinder (101)；The lower end of the inner cylinder is provided with the projection being engaged with central tube (102) upper recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756093.XU CN207111039U (en) | 2017-06-27 | 2017-06-27 | A kind of dead well safety and environmental protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756093.XU CN207111039U (en) | 2017-06-27 | 2017-06-27 | A kind of dead well safety and environmental protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111039U true CN207111039U (en) | 2018-03-16 |
Family
ID=61588200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720756093.XU Expired - Fee Related CN207111039U (en) | 2017-06-27 | 2017-06-27 | A kind of dead well safety and environmental protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111039U (en) |
-
2017
- 2017-06-27 CN CN201720756093.XU patent/CN207111039U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |