CN203939480U - A kind of rotation top uncoupling type tubing drain - Google Patents
A kind of rotation top uncoupling type tubing drain Download PDFInfo
- Publication number
- CN203939480U CN203939480U CN201420383629.4U CN201420383629U CN203939480U CN 203939480 U CN203939480 U CN 203939480U CN 201420383629 U CN201420383629 U CN 201420383629U CN 203939480 U CN203939480 U CN 203939480U
- Authority
- CN
- China
- Prior art keywords
- draining
- sealing ring
- cover
- riser leg
- lower contact
- 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
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model provides a kind of rotation top uncoupling type tubing drain, comprise draining riser leg, shop bolt, the first sealing ring, draining cover, the second sealing ring, locking pin, clamping block, lock dog sheath and lower contact, draining riser leg applies mechanically trapezoidal thread with draining and is connected, clamping block is inserted between draining riser leg and draining cover, the first sealing ring is between draining riser leg and draining cover, shop bolt connects draining cover, the second sealing ring is below draining cover, being arranged on draining puts, lower contact connects draining riser leg, the utility model is simple in structure, easy to operate, draining is reliable, there will not be accidental discharge of oil, can be disconnected at sucker rod, card, de-, under the non-normal conditions such as wax deposition, realizing oil draining function can repeatedly close or open in the time there is accident, adapt to the needs of well site special circumstances.
Description
Technical field
The utility model is specifically related to a kind of rotation top uncoupling type tubing drain.
Background technology
Tubing drain is a kind of corollary equipment of rod pumping pump, is used for being communicated with oil pipe and sleeve channel when oil well operation, and the liquid in oil pipe is let out to well, is not with well liquid in the oil pipe that makes to trip out, and to improve execution conditions, reduces well site and pollutes.The bleeder using at present mainly and pull-type shearing taking anchoring type, caber as main.Long-term facts have proved, oil draining function, effect and the reliability etc. of these 3 kinds of bleeders are all undesirable.
Anchoring type bleeder is fluid pressure type bleeder, and draining is reliable, because it is with tubing anchor (rigid anchorage) device, is only applicable to the flow string that Quan Jinghe adopts.Caber shearing type oil drain device is to cut off oil drain switch pin by the high speed impact power of caber, realizes draining, therefore caber speed is had to certain requirement.In the higher heavy oil wells of viscosity of crude, paraffin-troubled well, cannot normally use; In addition, in the time that disconnected, card, de-situation occur sucker rod, the oil draining function of caber shearing type oil drain device cannot be realized.Lifting type oil draining equipment is to lean on rod collar or extension crash device to open oil drain switch to realize draining, and its shortcoming is in oil well production process, once rod collar or extension crash device are encountered bleeder switch, bleeder switch will be opened draining midway, and impact is produced.
Summary of the invention
The purpose of this utility model is for solving above-mentioned deficiency, and the rotation top uncoupling type tubing drain that a kind of structure is simple and direct rationally, draining handling safety is reliable, there will not be accidental discharge of oil is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rotation top uncoupling type tubing drain, comprise draining riser leg 1, shop bolt 2, the first sealing ring 3, draining cover 4, the second sealing ring 5, locking pin 6, clamping block 7, lock dog sheath 8 and lower contact 9, wherein said draining cover 4 is socketed on described draining riser leg's 1 back segment by trapezoidal thread, between described draining riser leg 1 and described draining cover 4, be respectively equipped with the first sealing ring 3 for realizing the two sealing effectiveness and play the role of positioning by the fixing clamping block 7 of locking pin 6, shop bolt 2 connects draining cover 4, the back segment of described draining cover 4 is socketed with lower contact 9, described bleeder 4 peripheries are provided with the second sealing ring 5 being tightly connected with lower contact 9 for realizing, described lower contact 9 inside are provided with the lock dog sheath 8 for holding clamping block 7.
The utility model also has some technical characterictics like this:
Described draining riser leg 1 comprises bleeder 10, oil well pump 11 and packer 12, and bleeder 10 connects oil well pump 11, and packer 12 is arranged on draining riser leg 1 inside.
Described packer 12 is by providing moment of torsion to realize draining with the friction of tubing string.
Described bleeder has and repeats to close and opening function.
The utlity model has following useful effect:
The utility model is simple in structure, easy to operate, draining reliable, there will not be accidental discharge of oil, can be disconnected at sucker rod, realize oil draining function under the non-normal condition such as card, de-, wax deposition and can repeatedly close or open occurring when unexpected, adapt to the needs of well site special circumstances.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is draining riser leg structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
embodiment 1
A kind of rotation top uncoupling type tubing drain, comprise draining riser leg 1, shop bolt 2, the first sealing ring 3, draining cover 4, the second sealing ring 5, locking pin 6, clamping block 7, lock dog sheath 8 and lower contact 9, wherein said draining cover 4 is socketed on described draining riser leg's 1 back segment by trapezoidal thread, between described draining riser leg 1 and described draining cover 4, be respectively equipped with the first sealing ring 3 for realizing the two sealing effectiveness and play the role of positioning by the fixing clamping block 7 of locking pin 6, shop bolt 2 connects draining cover 4, the back segment of described draining cover 4 is socketed with lower contact 9, described bleeder 4 peripheries are provided with the second sealing ring 5 being tightly connected with lower contact 9 for realizing, described lower contact 9 inside are provided with the lock dog sheath 8 for holding clamping block 7.Described draining riser leg 1 comprises bleeder, oil well pump and packer, bleeder connects oil well pump, packer is arranged on draining riser leg 1 inside, and described packer is by providing moment of torsion to realize draining with the friction of tubing string, and described bleeder has and repeats to close and opening function.
Operating principle: the first sealing ring 3 and the second sealing ring 5 ensure bleeder produce time in complete sealing state; Draining riser leg 1 is connected with draining cover 4 use trapezoidal threads, and forward is opened, and has both ensured to connect up and down, ensures that again screw thread moment of torsion is less, is conducive to bleeder positive rotation and opens, and realizes draining action; Clamping block 7 is inserted between draining riser leg 1 and draining cover 4, has anti-rotating function, goes into the well in process at draining tubing string, and the two does not relatively rotate to ensure bleeder draining riser leg 1 and draining cover 4, guarantees that in the process of going into the well, bleeder is not surprisingly opened; Go into the well in process at tubing string, locking pin 6 and lock dog sheath 8 ensure that clamping block 7 is in stable lock-out state; When rotary bleeder along with flow string under behind shaft bottom, be lowered to the sucker rod with pump plug, in the time that pump plug passes through bleeder, percussion clamping block 7, impact passes on locking pin 6 and is cut off, and clamping block 7 is pushed downwards in lock dog sheath 8 external spaces, limits its mobile space, prevent that it from entering in oil pipe, now bleeder draining riser leg 1 and draining cover 4 is removed locking between the two.
When needs trip out flow string, while releasing pipe inner fluid, forward tubing string, under the effect of packer spin friction moment, bleeder draining main body and draining cover 4 relatively rotate between the two, make draining duct unimpeded, discharge fluid.
Draining riser leg 1 be connected to oil well pump above, be directly connected with oil well pump.When operation, be first lowered to this tubing string, after tubing string puts in place, set packer, is then normally lowered to sucker rod and pump plug in the time that pump plug is lowered into bleeder position, pump plug striking oil draining apparatus locking mechanism, and open locking mechanism, for subsequent implementation draining moves ready.In the time tripping out tubing string and need draining, first normally trip out sucker rod, then on, carry tubing string, more than utilizing slow forward tubing string 10 circles of hydraulic tongs, owing to there being friction between the packing element of packer and brake pad and casing wall, can provide the moment of torsion of outwarding winding for bleeder, under revolving force effect, open bleeder draining duct, realize draining action.
Claims (3)
1. a rotation top uncoupling type tubing drain, comprise draining riser leg, shop bolt, the first sealing ring, draining cover, the second sealing ring, locking pin, clamping block, lock dog sheath and lower contact, it is characterized in that: described draining cover is socketed on described draining riser leg's back segment by trapezoidal thread, between described draining riser leg and described draining cover, be respectively equipped with the first sealing ring for realizing the two sealing effectiveness and play the role of positioning by the fixing clamping block of locking pin (6), shop bolt connects draining cover, the back segment of described draining cover is socketed with lower contact, described bleeder periphery is provided with the second sealing ring being tightly connected with lower contact for realizing, described lower contact inside is provided with the lock dog sheath for holding clamping block.
2. a kind of rotation top uncoupling type tubing drain as claimed in claim 1, is characterized in that: described draining riser leg comprises bleeder, oil well pump and packer, and bleeder connects oil well pump, and packer is arranged on draining riser leg inside.
3. a kind of rotation top uncoupling type tubing drain as claimed in claim 2, is characterized in that: described packer is by providing moment of torsion to realize draining with the friction of tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383629.4U CN203939480U (en) | 2014-07-13 | 2014-07-13 | A kind of rotation top uncoupling type tubing drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383629.4U CN203939480U (en) | 2014-07-13 | 2014-07-13 | A kind of rotation top uncoupling type tubing drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939480U true CN203939480U (en) | 2014-11-12 |
Family
ID=51858803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420383629.4U Expired - Fee Related CN203939480U (en) | 2014-07-13 | 2014-07-13 | A kind of rotation top uncoupling type tubing drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939480U (en) |
-
2014
- 2014-07-13 CN CN201420383629.4U patent/CN203939480U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204357385U (en) | Can unlocking hydraulic pressure formula sleeve pipe anchoring device | |
| CN102777148B (en) | Double-function releasing bridge plug for horizontal well | |
| CN203452734U (en) | Integrated production and wax removing and prevention pipe column for high-pressure gas well | |
| CN102733776B (en) | Fishable tubing plug | |
| CN203939480U (en) | A kind of rotation top uncoupling type tubing drain | |
| CN204457577U (en) | A kind of hydraulic pressure retrievable sand control packer | |
| CN103711456A (en) | Hydraulic switching tool for deep-water oil well | |
| CN201843556U (en) | Hydraulic withdrawable overshot | |
| CN204060622U (en) | A kind of rotation top uncoupling type tubing drain | |
| CN105317401A (en) | Rotary and upward lifting type tubing drain device | |
| CN203347704U (en) | Well washing and oil draining device for pumping well | |
| CN204140015U (en) | Well mouth pressure testing packer | |
| CN204327023U (en) | A kind of tubing string release device | |
| CN103334715B (en) | Under balance pressure drilling casing valve | |
| CN204552686U (en) | Bleeder | |
| CN202745799U (en) | Large-diameter self-locking packer | |
| CN202745811U (en) | On-pump oil pipe connecting device | |
| CN202090894U (en) | Slip-pull type oil draining device | |
| CN206722758U (en) | A kind of underground for probing water drains lever apparatus | |
| CN202249890U (en) | Anti-spraying box fast connection device | |
| CN204827367U (en) | Screw pump bleeder | |
| CN202544812U (en) | Rotary oil draining device | |
| CN102011559A (en) | Underground snubbing operation device | |
| CN203655238U (en) | Hydraulic opening and closing tool for deepwater oil well | |
| CN102797436A (en) | Rotary type tubing drain and use method thereof |
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: 20141112 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |