CN205858631U - Hollow gas-tight oil recovery tool kit - Google Patents
Hollow gas-tight oil recovery tool kit Download PDFInfo
- Publication number
- CN205858631U CN205858631U CN201620804053.3U CN201620804053U CN205858631U CN 205858631 U CN205858631 U CN 205858631U CN 201620804053 U CN201620804053 U CN 201620804053U CN 205858631 U CN205858631 U CN 205858631U
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- China
- Prior art keywords
- gas bag
- gas
- piston cylinder
- wall
- joint
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- 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.)
- Withdrawn - After Issue
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
This utility model relates to anti-gas lock oil tool during a kind of oil extraction in oil field, is specifically related to a kind of hollow gas-tight oil recovery tool kit.Hollow gas-tight oil recovery tool kit, including box cupling, piston cylinder, gas bag assembly, assembly for plunger and ball-and-seat assembly, box cupling upper inside wall is provided with tubing round thread, and box cupling inner wall lower is provided with female thread, and piston cylinder end outer wall is provided with external screw thread, box cupling is threadeded with piston cylinder, piston cylinder matrix is integral seamless steel pipe, and piston cylinder inwall has alloy-layer, piston cylinder outer wall electroplating anticorrosion layer, piston cylinder middle and lower part has gas-liquid channel, and piston cylinder outer wall has blind hole on gas-liquid channel top；Gas bag assembly is enclosed within piston cylinder outer wall.This utility model simple in construction, service life is long, by the upper and lower stroke of plunger to the sealing of the steam vent up and down of gas bag and unlatching, the gas in pump is drained into oil pipe on pump, reach to prevent producing well associated gas or gas of injecting later when recovering the oil from oil well pump causing gas lock phenomenon.
Description
Technical field
This utility model relates to anti-gas lock oil tool during a kind of oil extraction in oil field, is specifically related to a kind of hollow gas-tight and adopts
Oil tool kit.
Background technology
During oil extraction in oil field, being all attended by natural gas and discharge while stratum is fuel-displaced, gas is in plunger lower piston cylinder
Can build up, cause oil well pump that gas lock phenomenon occurs；Part oil district can take the measure of carbon dioxide drive for oil production,
Causing gas content in fluid to increase further, in oil recovery process, oil well pump is easier to cause gas lock phenomenon.
Utility model content
The purpose of this utility model is to provide a kind of and solves producing well associated gas or gas of injecting later when recovering the oil
The hollow gas-tight oil recovery tool kit of the gas lock phenomenon that oil well pump is caused.
The technical solution of the utility model is:
Hollow gas-tight oil recovery tool kit, including box cupling, piston cylinder, gas bag assembly, assembly for plunger and ball-and-seat assembly, connects
Hoop upper inside wall is provided with tubing round thread, and box cupling inner wall lower is provided with female thread, and piston cylinder end outer wall is provided with external screw thread, box cupling with
Piston cylinder is threaded, and piston cylinder matrix is integral seamless steel pipe, and piston cylinder inwall has alloy-layer, and the plating of piston cylinder outer wall is anti-
Rotten layer, piston cylinder middle and lower part has gas-liquid channel, and piston cylinder outer wall has blind hole on gas-liquid channel top；Gas bag assembly is enclosed within work
On plug cylinder outer wall, gas bag assembly includes the gentle fixing device of assuring of gas bag pipe, and gas bag pipe two ends connect gas bag fixing device respectively,
Gas bag pipe fixing device includes gas bag cap, gas bag joint, lengthens steel loop, steel ring, Z-type copper ring, gas bag cap inner circle one end unthreaded hole
And be enclosed within piston cylinder, the gas bag cap other end is connected with gas bag joint screw thread, and gas bag joint cylindrical two ends are provided with external screw thread, gas bag
Joint one end connects gas bag cap, and the gas bag joint other end connects gas bag pipe, gas bag joint inner circle two ends bore hole, by middle rib every
Opening, the endoporus near gas bag cap one end is sequentially arranged with lengthening steel loop, Z-type copper ring, steel loop and retainer ring, uniform on fixing ring wall
Having through hole, pin is fixed through the blind hole on through hole and piston cylinder；Being provided with assembly for plunger in piston cylinder, piston cylinder lower end is by connecing
Hoop connects ball-and-seat assembly.
Concrete, externally threaded one end that gas bag joint is connected with gas bag pipe is provided with escape, and this escape passes through chamfering
Transition is connected with the first cambered surface and the second cambered surface successively, and described second cambered surface is by chamfered transition and negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder
Connect；Gas bag pipe female thread one end is provided with the conical surface the most corresponding with the first cambered surface on gas bag joint and the second cambered surface and circle
Cylinder and negative angle moment of torsion second half the circumference of the sleeve where it joins the shoulder corresponding with negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder, described gas bag joint is gentle assures screw thread
After cooperation, by the first cambered surface to the primary seal structure of the conical surface, the second cambered surface to the secondary seal structure on the face of cylinder and negative angle
Three grades of metal to metal interference that the negative angle moment of torsion half the circumference of the sleeve where it joins the shoulder that degree moment of torsion the first half the circumference of the sleeve where it joins the shoulder and the second half the circumference of the sleeve where it joins the shoulder match seals structure are close
Envelope.
Concrete, the gentle female thread of assuring of gas bag joint external screw thread is buttress thread.
Concrete, Z-type copper ring and steel loop are alternately mounted between piston cylinder and gas bag joint, rely on gas bag cap and gas bag
Pretightning force between joint screw thread, makes red copper Z-type copper ring deform, and forms labyrinth seal, reaches sealing effectiveness.
Concrete, piston cylinder inwall has zinc-aluminum-magnesium-rare earth multi-element alloy-layer, piston cylinder outer wall plating 0.3mm-0.5mm
Thick nano anti-corrosive layer.
This utility model simple in construction, service life is long, is directly connected on flow string, the oil pumper on ground drive and take out
Beam hanger post plunger of ining succession carries out upper and lower stroke oil recovery, and is opened the sealing of the steam vent up and down of gas bag by the upper and lower stroke of plunger
Open, the gas in pump drained into oil pipe on pump, reach to prevent producing well when recovering the oil associated gas or the gas that injected later to taking out
Oil pump causes gas lock phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is gas bag pipe and the connection diagram of gas bag joint.
The secondary 5 gas bag caps 6 of 1 box cupling 2 piston cylinder 3 upper traveling valve cage 4 travelling valve lengthen steel loop
7 Z-type copper ring 8 steel loop 9 pin 10 retainer ring 11 gas bag joint 12 gas bag pipe 13 posts
Secondary 18 ball-and-seats of cock body 14 lower travelling valve cover 15 lower travelling valve shield joint 16 single current valve bonnet 17 ball-and-seat
20 times gas-liquid channel 21 escape 22 first cambered surface 23 second cambered surfaces 24 of gas-liquid channel on joint 19
Negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 25 conical surface 26 face of cylinder 27 negative angle moment of torsion the second half the circumference of the sleeve where it joins the shoulder 28 external screw thread 29
Female thread.
Detailed description of the invention
Hollow gas-tight oil recovery tool kit, including box cupling 1, piston cylinder 2, gas bag assembly, assembly for plunger and ball-and-seat assembly,
Box cupling 1 upper inside wall is provided with tubing round thread, and box cupling 1 inner wall lower is provided with female thread 29, and piston cylinder 2 end outer wall is provided with external screw thread
28, box cupling 1 is threadeded with piston cylinder 2.
Piston cylinder 2 matrix is integral seamless steel pipe, and piston cylinder 2 inwall has zinc-aluminum-magnesium-rare earth multi-element alloy-layer, piston
The nano anti-corrosive layer that cylinder 2 outer wall plating 0.3mm-0.5mm is thick, improves the service life of piston cylinder 2, and piston cylinder 2 middle and lower part has
Upper gas-liquid channel 19 and lower gas-liquid channel 20, the angle between the gas-liquid channel of sustained height is 90 degree, and piston cylinder 2 outer wall is at gas
Liquid channel upper has blind hole.
Gas bag assembly is enclosed within piston cylinder 2 outer wall, and gas bag assembly includes that gas bag pipe 12 is gentle and assures 12 fixing devices, gas bag
Pipe 12 two ends connect gas bag fixing device respectively, and gas bag pipe 12 fixing device includes gas bag cap 5, gas bag joint 11, lengthens steel loop
6, steel ring, Z-type copper ring 7, gas bag cap 5 inner circle one end unthreaded hole is also enclosed within piston cylinder 2, gas bag cap 5 other end and gas bag joint
11 is threaded, and gas bag joint 11 cylindrical two ends are provided with external screw thread 28, and gas bag joint 11 external screw thread 28 is gentle assures 12 female threads
29 is buttress thread, and gas bag joint 11 one end connects gas bag cap 5, and gas bag joint 11 other end connects gas bag pipe 12, and gas bag connects
11 inner circle two ends bore holes, are separated by middle rib, and it is purple that the endoporus near gas bag cap 5 one end is sequentially arranged with lengthening steel loop 6, Z-type
Copper band 7, steel loop 8 and retainer ring 10, wherein Z-type copper ring 7 and steel loop 8 are alternately mounted between piston cylinder 2 and gas bag joint 11,
Rely on the pretightning force between gas bag cap 5 and gas bag joint 11 screw thread, make red copper Z-type copper ring 7 deform, form labyrinth seal, reach
To sealing effectiveness, retainer ring 10 wall being evenly equipped with through hole, pin 9 is fixed through the blind hole on through hole and piston cylinder 2.
The one end of the external screw thread 28 that gas bag joint 11 is connected with gas bag pipe 12 is provided with escape 21, and this escape 21 is by falling
Angle transition is connected with the first cambered surface 22 and the second cambered surface 23 successively, and described second cambered surface 23 is by chamfered transition and negative angle moment of torsion
First half the circumference of the sleeve where it joins the shoulder 24 connects；Gas bag pipe 12 female thread 29 one end is provided with and the first cambered surface 22 and the second cambered surface 23 on gas bag joint 11
The most corresponding conical surface 25 and the face of cylinder 26 and the negative angle moment of torsion second corresponding with negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 24 are lifted
Shoulder 27, described gas bag joint 11 is gentle assure 12 threaded engagement after, by the first cambered surface 22 to the primary seal structure of the conical surface 25,
It is negative that the secondary seal structure on the face of cylinder 26 and negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder 24 and the second half the circumference of the sleeve where it joins the shoulder are matched by the second cambered surface 23
Angle moment of torsion half the circumference of the sleeve where it joins the shoulder seals three grades of metal to metal interference seal of structure, improves the sealing property of gas bag pipe 12.
Being provided with assembly for plunger in piston cylinder 2, assembly for plunger includes upper traveling valve cage 3, travelling valve pair 4, plunger body 13, downstream
Dynamic valve bonnet 14 and lower travelling valve shield joint 15, piston cylinder 2 lower end connects ball-and-seat assembly by box cupling 1, and ball-and-seat assembly includes
Single current valve bonnet 16, ball-and-seat secondary 17 and ball-and-seat joint 18.
During work, assembly for plunger is up under the pulling force effect of oil pumper and rod string, and assembly for plunger and piston cylinder 2 are joined
Form negative pressure cavity in being combined in plunger piston cylinder 2 once, mix liquid outside tubing string and back down ball-and-seat pair 17 under pressure,
Entering in piston cylinder 2, specific gravity of gas is little, and to follow assembly for plunger closely up, and lower travelling valve joint 15 goes upward to gas bag assembly position, because of
Gas bag pipe 12 can be entered into by lower gas-liquid channel 20 for the factor gas of pressure reduction to store, when rod string is descending, post
After the upper traveling valve cage 3 of plug assembly entered upper gas-liquid channel 19, gas meeting and on liquid displacement not remove in gas bag pipe 12,
Enter top oil pipe by piston cylinder 2, so reach to prevent producing well when recovering the oil associated gas or the gas that injected later to taking out
Oil pump causes the purpose of gas lock phenomenon.
Finally should be noted that: it is only limited by above example in order to the technical solution of the utility model to be described
System；Although being described in detail this utility model with reference to preferred embodiment, those of ordinary skill in the field should
Understand: still detailed description of the invention of the present utility model can be modified or portion of techniques feature is carried out equivalent and replace
Change；Without deviating from the spirit of technical solutions of the utility model, it all should contain the technical scheme being claimed at this utility model
In the middle of scope.
Claims (5)
1. hollow gas-tight oil recovery tool kit, including box cupling, piston cylinder, gas bag assembly, assembly for plunger and ball-and-seat assembly, it is special
Levying and be, box cupling upper inside wall is provided with tubing round thread, and box cupling inner wall lower is provided with female thread, and piston cylinder end outer wall is provided with outer spiral shell
Stricture of vagina, box cupling threadeds with piston cylinder, and piston cylinder matrix is integral seamless steel pipe, and piston cylinder inwall has alloy-layer, piston cylinder
Outer wall electroplating anticorrosion layer, piston cylinder middle and lower part has gas-liquid channel, and piston cylinder outer wall has blind hole on gas-liquid channel top；Gas bag
Assembly is enclosed within piston cylinder outer wall, and gas bag assembly includes the gentle fixing device of assuring of gas bag pipe, and gas bag pipe two ends connect gas respectively
Bag fixing device, gas bag pipe fixing device includes gas bag cap, gas bag joint, lengthens steel loop, steel ring, Z-type copper ring, in gas bag cap
Circle one end unthreaded hole is also enclosed within piston cylinder, and the gas bag cap other end is connected with gas bag joint screw thread, and gas bag joint cylindrical two ends are provided with
External screw thread, gas bag joint one end connection gas bag cap, gas bag joint other end connection gas bag pipe, gas bag joint inner circle two ends bore hole,
Being separated by middle rib, the endoporus near gas bag cap one end is sequentially arranged with lengthening steel loop, Z-type copper ring, steel loop and retainer ring, Gu
Determining to be evenly equipped with on ring wall through hole, pin is fixed through the blind hole on through hole and piston cylinder；Assembly for plunger, piston it is provided with in piston cylinder
Cylinder lower end connects ball-and-seat assembly by box cupling.
Hollow gas-tight oil recovery tool kit the most according to claim 1, it is characterised in that gas bag joint is connected with gas bag pipe
Externally threaded one end is provided with escape, and this escape is connected with the first cambered surface and the second cambered surface successively by chamfered transition, described
Second cambered surface is connected with negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder by chamfered transition；Gas bag pipe female thread one end be provided with on gas bag joint
The first cambered surface and the most corresponding conical surface of the second cambered surface and the face of cylinder and corresponding with negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder negative
Angle moment of torsion the second half the circumference of the sleeve where it joins the shoulder, described gas bag joint is gentle assure threaded engagement after, by first cambered surface primary seal to the conical surface
The negative angle that the secondary seal structure on the face of cylinder and negative angle moment of torsion the first half the circumference of the sleeve where it joins the shoulder and the second half the circumference of the sleeve where it joins the shoulder are matched by structure, the second cambered surface
Degree moment of torsion half the circumference of the sleeve where it joins the shoulder seals three grades of metal to metal interference seal of structure.
Hollow gas-tight oil recovery tool kit the most according to claim 2, it is characterised in that gas bag joint external screw thread is gentle to be assured
Female thread is buttress thread.
Hollow gas-tight oil recovery tool kit the most according to claim 1, it is characterised in that Z-type copper ring and steel loop alternately peace
It is contained between piston cylinder and gas bag joint, relies on the pretightning force between gas bag cap and gas bag joint screw thread, make red copper Z-type copper ring
Deformation, forms labyrinth seal, reaches sealing effectiveness.
Hollow gas-tight oil recovery tool kit the most according to claim 1, it is characterised in that piston cylinder inwall has zinc-aluminum-magnesium
Rare earth multicomponent alloy-layer, the nano anti-corrosive layer that piston cylinder outer wall plating 0.3mm-0.5mm is thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620804053.3U CN205858631U (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery tool kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620804053.3U CN205858631U (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery tool kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858631U true CN205858631U (en) | 2017-01-04 |
Family
ID=57649038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620804053.3U Withdrawn - After Issue CN205858631U (en) | 2016-07-28 | 2016-07-28 | Hollow gas-tight oil recovery tool kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401924A (en) * | 2016-07-28 | 2017-02-15 | 濮阳市科锐机械工程技术有限公司 | Hollow anti-gas oil extraction combination tool |
| CN109267968A (en) * | 2018-10-10 | 2019-01-25 | 西安奥德石油工程技术有限责任公司 | Electric heating apparatus of hollow sucker rod and oil production equipment |
-
2016
- 2016-07-28 CN CN201620804053.3U patent/CN205858631U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401924A (en) * | 2016-07-28 | 2017-02-15 | 濮阳市科锐机械工程技术有限公司 | Hollow anti-gas oil extraction combination tool |
| CN109267968A (en) * | 2018-10-10 | 2019-01-25 | 西安奥德石油工程技术有限责任公司 | Electric heating apparatus of hollow sucker rod and oil production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170104 Effective date of abandoning: 20190405 |