CN208996695U - Screw pump is anchored bleeder - Google Patents
Screw pump is anchored bleeder Download PDFInfo
- Publication number
- CN208996695U CN208996695U CN201821577941.1U CN201821577941U CN208996695U CN 208996695 U CN208996695 U CN 208996695U CN 201821577941 U CN201821577941 U CN 201821577941U CN 208996695 U CN208996695 U CN 208996695U
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- China
- Prior art keywords
- central tube
- piston
- circlip
- fixed
- bleeder
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Abstract
A kind of screw pump anchoring bleeder.Mainly solve the problems, such as in existing screw bolt well to have damage internal surface of sleeve pipe when tubing anchor is fixed, lift pipe string when can not draining.It is characterized by: top connection (1) bottom is connected with rotary body (4), pass through solution offset (2) connection rotary joint (3) inside rotary body (4), several longitudinal drain paths (22) are provided on central tube (17) outer wall, packing element assembly bottom is equipped with circlip sheath (10), circlip sheath (10) is internally connected with release set (12), gap between release set (12) and central tube (17) is built-in with circlip (11), and release set (12) bottom is connected and fixed piston (14) by release pin (13).The screw pump is anchored bleeder using the fixed tubing string of packing element, avoids damage to casing, and crude oil can be released by drain path in tubing string when lift pipe string, avoids pollution ground.
Description
Technical field
The utility model relates to oilfield, specifically a kind of screw pump is anchored bleeder.
Background technique
The tubing anchor in screw bolt well has biggish damage to internal surface of sleeve pipe, after sitting card using the fixed tubing string of slips at present
Also well head is needed to adjust, it is cumbersome and time consuming, increase cost and labor intensity.Meanwhile when lift pipe string, crude oil in oil pipe without
Method is released, and taking ground to will increase environmental protection construction investment and environmentally friendly risk.
Summary of the invention
In order to be had damage when overcoming in existing screw bolt well tubing anchor fixed to internal surface of sleeve pipe, can not draining when lift pipe string
Deficiency, the utility model provides a kind of screw pump anchoring bleeder, which is anchored bleeder using the fixed tubing string of packing element,
Avoid damage to casing, crude oil can be released by drain path in tubing string when lift pipe string, avoid pollution ground.
The technical solution of the utility model is: a kind of screw pump anchoring bleeder, including top connection, central tube, feature
Be: the top connection bottom is connected with rotary body, passes through deblocking pin connection rotary joint inside rotary body, rotary joint is in
It is connected between heart pipe by rotary joint, several longitudinal drain paths, the rotary body is provided in the center pipe outer wall
On be provided with the fuel feed hole communicated with drain path, packing element assembly is equipped with outside the central tube of rotary body lower end；The packing element assembly
Bottom is equipped with circlip sheath, and circlip sheath is internally connected with release set, and the gap between release set and central tube is built-in with circlip,
The jump-ring slot matched with circlip is provided in the center pipe outer wall, release set bottom is connected and fixed work by release pin
Plug, and fixed piston is threadedly attached on central tube, and setting sleeve is equipped with outside the fixed piston, setting sleeve top card exists
On the step for discharging set, setting sleeve bottom is fixed with by step sets piston, the central tube, fixed piston, setting sleeve, seat
Booster cavity is collectively formed in envelope piston, is equipped with pressure-bearing set outside the setting sleeve, sets and be provided with liquid on the central tube of piston base
Hole.
The center bottom of the tube is connected with lower contact, and lower contact is externally connected to standby cap, and standby cap is by the pressure-bearing set at the top of it
It is fixed.
The utility model has the following beneficial effects: by adopting the above scheme, the anchoring bleeder uses multiple groups glue
Cylinder effectively protects that casing is injury-free and fixed tubing string is firm instead of slips, while increasing packing element and casing
Contact area, can preferable anchoring string；It is anchored bleeder and uses drain path, it only need to be by the device in operation lift pipe string
Rotation deblocking, so that it may drain path be opened, by the liquid band ground in oil pipe when can prevent operation, preferably protect well
Field environment；The booster cavity of bleeder sealing, when can help the pressure of fluid column in well, water injection pressure, complete well examination take out pressure into
Row release saves cementing truck release, easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1- top connection in figure, 2- unseal pin, 3- rotary joint, 4- rotary body, 5- upper isolating ring, the side 6- packing element, the side 7- every
Ring, packing element in 8-, spacer ring in 9-, 10- circlip sheath, 11- circlip, 12- release set, 13- release pin, 14- fixed piston,
15- setting sleeve, 16- pressure-bearing set, 17- central tube, 18- set piston, 19- standby cap, 20- lower contact, 21- fuel feed hole, 22- draining
Channel, 23- card tooth, 24- booster cavity, 25- liquid pass hole.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of screw pump is anchored bleeder, including top connection 1, central tube 17, outside 1 bottom of top connection
Side has been connected through a screw thread rotary body 4, passes through the solution connection rotary joint 3 of offset 2, rotary joint 3 and central tube inside rotary body 4
It is connected between 17 by rotary joint 3, is sealed between central tube 17 and top connection 1 by sealing ring glue.Outside the central tube 17
Several longitudinal drain paths 22 are provided on wall, drain path 22 is circumferentially uniformly distributed along 17 outer surface of central tube, each drain path
There is gap between 22.Several fuel feed holes 21 communicated with drain path 22 are provided on the rotary body 4,4 lower end of rotary body
Packing element assembly is equipped with outside central tube 17,4 lower end of rotary body is withstood at the top of packing element assembly.The packing element assembly is from top to bottom successively
Including upper isolating ring 5, top while packing element 6, top while spacer ring 7, the middle packing element 8 on top, middle spacer ring 9, lower part middle packing element 8,
Lower part in spacer ring 7, the while packing element 6 of lower part.Packing element assembly bottom is equipped with circlip sheath 10, and 10 top of circlip sheath is pressed in side glue
6 inside of cylinder, 10 lower inside of circlip sheath are threadedly coupled release set 12, and the gap between release set 12 and central tube 17 is built-in with
Circlip 11,17 outer wall of central tube are equipped with the card tooth 23 matched with circlip 11, and the height and drain path of card tooth 23
22 bottoms are corresponding.The release covers 12 bottoms and is connected and fixed piston 14 by release pin 13, and fixed piston 14 passes through spiral shell
Line is connected on central tube 17, setting sleeve 15 is equipped with outside the fixed piston 14,15 top card of setting sleeve is in release set 12
On step, 15 bottom of setting sleeve is fixed with by step sets piston 18, the central tube 17, fixed piston 14, setting sleeve 15,
It sets piston 18 and booster cavity 24 is collectively formed, pressure-bearing set 16 is equipped with outside the setting sleeve 15, sets the center of 18 bottom of piston
Liquid pass hole 25 is provided on pipe 17, liquid pass hole 25 is corresponding with the groove for setting 18 bottom of piston.17 bottom outside of central tube
It is connected with lower contact 20, standby cap 19 is threadedly coupled in lower contact 20, standby cap 19 is fixed by pressure-bearing set 16 simultaneously.
When setting, to be suppressed out of oil pipe, pressure fluid is applied to from the liquid pass hole 25 on central tube 17 and sets on piston 18, by
In setting piston 18, setting sleeve 15, central tube 17, having booster cavity 24 between fixed piston 14, with the increase of depth of falling well, sit
The pressure difference of envelope 18 two sides of piston also increases.When pressure reach one timing, set piston 18 push setting sleeve 15, release set 12, card
Spring 11,10 uplink of circlip sheath cut release pin 13, and compress each packing element, when reach certain compression away from when, circlip 11
It is lockked with the card tooth 23 on central tube 17, anchoring bleeder is in running order.
When well-flushing, since the device is connected to the upper surface of screw pump, the well-flushing passage of the anchoring bleeder is opened always, can
Carry out anti-flushing well.
When operation deblocking, tubing string is rotated, by the frictional force of packing element and casing, top connection 1 drives rotary body 4 to rotate,
Deblocking pin 2 is cut, rotary body 4 and lower part tubing string are disengaged, upper lifting pipe post, each packing element reinstatement state completes deblocking, simultaneously
Since fuel feed hole 21 is communicated with drain path 22, drain path is opened, leaks into the liquid in tubing string in casing.
Claims (2)
1. a kind of screw pump is anchored bleeder, including top connection (1), central tube (17), it is characterised in that: the top connection (1)
Bottom is connected with rotary body (4), and by solution offset (2) connection rotary joint (3) inside rotary body (4), rotary joint (3) is in
It is connected between heart pipe (17) by rotary joint (3), several longitudinal drain paths is provided on central tube (17) outer wall
(22), the fuel feed hole (21) communicated with drain path (22), the central tube of rotary body (4) lower end are provided on the rotary body (4)
(17) external to be equipped with packing element assembly；Packing element assembly bottom is equipped with circlip sheath (10), and circlip sheath (10) is internally connected with
Release set (12), the gap between release set (12) and central tube (17) are built-in with circlip (11), central tube (17) outer wall
On be provided with the jump-ring slot (23) matched with circlip (11), release set (12) bottom is connected and fixed by release pin (13)
Piston (14), and fixed piston (14) is threadedly attached on central tube (17), is equipped with seat outside the fixed piston (14)
Big envelope (15), for setting sleeve (15) top card on the step of release set (12), setting sleeve (15) bottom is fixed with seat by step
It seals piston (18), the central tube (17), setting sleeve (15), sets piston (18) booster cavity is collectively formed fixed piston (14)
(24), pressure-bearing set (16) are equipped with outside the setting sleeve (15), set and was provided with liquid on the central tube (17) of piston (18) bottom
Hole (25).
2. screw pump according to claim 1 is anchored bleeder, it is characterised in that: central tube (17) bottom is connected with
Lower contact (20), lower contact (20) are externally connected to standby cap (19), and standby cap (19) is fixed by the pressure-bearing set (16) at the top of it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821577941.1U CN208996695U (en) | 2018-09-26 | 2018-09-26 | Screw pump is anchored bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821577941.1U CN208996695U (en) | 2018-09-26 | 2018-09-26 | Screw pump is anchored bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996695U true CN208996695U (en) | 2019-06-18 |
Family
ID=66801033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821577941.1U Active CN208996695U (en) | 2018-09-26 | 2018-09-26 | Screw pump is anchored bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996695U (en) |
-
2018
- 2018-09-26 CN CN201821577941.1U patent/CN208996695U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |