CN208702389U - A kind of heavy oil wells pumping wax-proofing apparatus - Google Patents
A kind of heavy oil wells pumping wax-proofing apparatus Download PDFInfo
- Publication number
- CN208702389U CN208702389U CN201821057307.5U CN201821057307U CN208702389U CN 208702389 U CN208702389 U CN 208702389U CN 201821057307 U CN201821057307 U CN 201821057307U CN 208702389 U CN208702389 U CN 208702389U
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- Prior art keywords
- spring
- circle
- outer cylinder
- screw thread
- outer circle
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- 238000005086 pumping Methods 0.000 title claims abstract description 30
- 239000000295 fuel oil Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 11
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of heavy oil wells pumping wax-proofing apparatus, including sealed outer cylinder, sand control short circuit, sealing shroud, sealing piston, flowing outer cylinder, spring outer cylinder, spring, central spindle of the spring, adjustment gasket and lower contact.The heavy oil wells pumping wax-proofing apparatus is connected to pumping tubing string lower part, when fluid column rises to predetermined altitude in oil pipe, heavy oil wells pumping wax-proofing apparatus is automatically closed, it prevents shaft bottom liquid to be continuously introduced to inside tubing string, crude oil is avoided to reach wax deposition point, so that it is smooth to guarantee that pumping tool removes in oil pipe.
Description
Technical field
The utility model relates to oil-field thick-oil well pumping to ask production equipment technical field, specifically a kind of heavy oil wells pumping wax control
Device.
Background technique
When production is asked in heavy oil wells pumping, due to the variation of temperature from top to bottom, opened when shaft bottom, crude oil rises to some height
Beginning wax deposition, causes pumping tool that predetermined depth cannot be descended to ask production, and previous way is removed in well using hot water circuit well-flushing
Wax deposition, this method construction time is long, and whole process will repeatedly carry out circulation well cleanup between asking term, at high cost, need a large amount of hot water,
And need one group of pump truck and tank car for a long time in well site.
Summary of the invention
Goal of the invention: the purpose of this utility model is that it is anti-to provide a kind of heavy oil wells pumping for the deficiency in current technology
Wax apparatus can shorten the heavy oil wells pumping construction time, and operating expenses is greatly reduced, and reduce equipment cost, meanwhile, construction letter
It is single, reduce labor intensity.
Technical solution: to achieve the above object, the utility model provides a kind of heavy oil wells pumping wax-proofing apparatus, including sealing
Outer cylinder, sand control short circuit, sealing shroud, sealing piston, flowing outer cylinder, spring outer cylinder, spring, central spindle of the spring and lower contact；It is described close
Envelope outer cylinder lower end is threadedly coupled with flowing outer cylinder, and the sealed outer cylinder is that outer circle is regular, inner circle distribution different-diameter and half the circumference of the sleeve where it joins the shoulder
Tubular structure, inner circle upper and lower side are internal screw thread, another internal screw thread near the lower end of threaded upper ends, sealed outer cylinder inner circle middle part
It is the minimum diameter of inner circle that dividing, which has expanding, expanding lower end,；Sand control short circuit is lower hollow and outer circle step structure, outside
The big half the circumference of the sleeve where it joins the shoulder end face of circle has the through-hole of circumference uniform distribution along coaxial direction, and the sand control is shorted lower hollow and is successively straight from the bottom up
Mouth and internal screw thread, the sand control are shorted external screw thread and connect with sealed outer cylinder, and internal screw thread is connect with sealing shroud；The sealing shroud be by
Two various outer diameter hollow cylinder compositions, above, by conical transition, big end inner circle is regular for great circle and roundlet for small column,
Small end inner circle has O-ring slot close to bottom, and external screw thread is arranged at small end outer circle top, and small end cylinder has one at Gewindefreistiche
Through the radial hole of wall thickness；The sealing piston is that outer circle is irregular and the cylindrical body of lower end inner hollow, the sealing piston
Outer circle most path is topmost, outer circle most path near outer circle maximum diameter, and maximum outer circle has O-ring slot and a dovetail groove, in outer circle
Between have undergauge, there is external screw thread in outer circle bottom, and the half the circumference of the sleeve where it joins the shoulder above external screw thread has O-ring slot, and there are two the sealing piston inner circles
Diameter, for large diameter in lower section, there is a hole parallel with axis and with minimum inner circle connection in the upper surface of maximum outer circle, described close
Envelope piston is threadedly coupled with spring outer cylinder；The flowing outer cylinder is the tubular structure of inner circle and outer circle rule, outer circle upper end
Have external screw thread with lower end, external screw thread inboard is the Short Cylinder Surface with O-ring slot, the flowing outer cylinder top and bottom respectively with
Sealed outer cylinder and lower contact are threadedly coupled；The spring outer cylinder is tubular structure, and there is sealing cylinder face internal screw thread in inner circle upper end, outside
O-ring slot is arranged at circle lower part, and spring outer cylinder lower end simultaneously can be free to slide with lower contact socket；The central spindle of the spring is elongate rod
There are the half the circumference of the sleeve where it joins the shoulder of protrusion in part, outer circle lower end, and central spindle of the spring is mounted on spring inner and can free to move longitudinally, upper end and sealing piston
Socket, central spindle of the spring lower end surface is contacted with lower contact；Undergauge is arranged at the lower contact cylindrical structure, outer circle lower part, and undergauge is most
There is external screw thread in lower end, and the lower contact upper and lower part is hollow, and inner circle is successively straight mouth and internal screw thread from top to bottom, connects under described
Centriciput has one and axis coaxle circular hole, the circular hole parallel with axis is evenly distributed with around circular hole, and circular hole and lower cavity join
It is logical.
As a kind of improvement of this programme, the sand control is shorted the big half the circumference of the sleeve where it joins the shoulder end face of outer circle has 6 circumference equal along coaxial direction
The through-hole of cloth.
As a kind of improvement of this programme, adjustment gasket, institute are provided between the lower spring end and central spindle of the spring lower part
Stating adjustment gasket is the circular ring shape laminated structure being socketed on central spindle of the spring, and outer diameter is less than spring outer cylinder internal diameter.
As a kind of improvement of this programme, the sealed outer cylinder, flowing outer cylinder connected with lower contact after outer circle be smoothly connected.
As a kind of improvement of this programme, O-ring is provided in the O-ring slot, material is oil resistant rubber.
The utility model has the advantages that heavy oil wells pumping wax-proofing apparatus described in the utility model, in use, described device is connected to pumping
Dip tube column lower part and tripping in oil well.When production is asked in heavy oil wells pumping, incipient stage, crude oil is filled by the heavy oil wells pumping wax control
It sets inner gateway to enter in the pumping tubing string above it, liquid-column height increases in oil pipe, and the head of liquid rising in oil pipe reaches certain
When a value, the head of liquid compressed spring of plane in sealing piston is acted on, when sealing piston moves down into the minimum diameter of outer cylinder
The flow channel of closing liquid prevents crude oil in oil pipe knot to prevent shaft bottom crude oil from rising to the height of beginning wax deposition
Wax.
Adjustment gasket is provided between lower spring end and central spindle of the spring lower part, it, can be with by changing the quantity of adjustment gasket
Adjust the compressed value of spring, so change sealing piston it is closed when required oil pipe in minimum pressure, to make described thick
Oilwell swabbing wax-proofing apparatus is adapted to different well depths.
The heavy oil wells pumping wax-proofing apparatus is connected to pumping tubing string lower part, when fluid column rises to predetermined altitude in oil pipe
Heavy oil wells pumping wax-proofing apparatus is automatically closed, and shaft bottom liquid is prevented to be continuously introduced to inside tubing string, and crude oil is avoided to reach wax deposition point,
It is smooth to guarantee that pumping tool removes in oil pipe.
Detailed description of the invention
Fig. 1, the heavy oil wells pumping wax-proofing apparatus structural schematic diagram；
Reference signs list: 1, sealed outer cylinder；2, sand control is shorted；3, sealing shroud；4, sealing piston；5, outer cylinder is flowed；6,
Spring outer cylinder；7, spring；8, central spindle of the spring；9, gasket is adjusted；10, lower contact.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It should be noted that making in being described below
Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" respectively refer to
Be directed towards or far from geometric center of specific component direction.
It is a kind of heavy oil wells pumping wax-proofing apparatus as shown in Figure 1, including sealed outer cylinder 1, sand control are shorted 2, sealing shroud 3, close
Seal piston 4, flowing outer cylinder 5,7 outer cylinder 6 of spring, spring 7,7 mandrel of spring, adjustment gasket 9 and lower contact 10.Under sealed outer cylinder 1
End is threadedly coupled with flowing outer cylinder 5, and sealed outer cylinder 1 is outer circle rule, and inner circle is distributed the tubular structure of different-diameter and half the circumference of the sleeve where it joins the shoulder, interior
Circle upper and lower side is internal screw thread, another internal screw thread near the lower end of threaded upper ends, 1 inner circle middle section of sealed outer cylinder have it is expanding,
Expanding lower end is the minimum diameter of inner circle.It is lower hollow and outer circle step structure, the big half the circumference of the sleeve where it joins the shoulder end face of outer circle that sand control, which is shorted 2,
There is the through-hole of 6 circumference uniform distributions along coaxial direction.Sand control is shorted 2 lower hollows and is successively straight mouth and internal screw thread from the bottom up,
Sand control is shorted 2 external screw threads and connect with sealed outer cylinder 1, and internal screw thread is connect with sealing shroud 3.Sealing shroud 3 is by two various outer diameters
Hollow cylinder composition, above, great circle and roundlet are by conical transition, and big end inner circle rule, small end inner circle is the bottom of close to for small column
There is O-ring slot in portion, and external screw thread is arranged at small end outer circle top, and small end cylinder has the radial direction for running through wall thickness at Gewindefreistiche
Hole.Sealing piston 4 is that outer circle is irregular and the cylindrical body of lower end inner hollow, and 4 outer circle of sealing piston most path is topmost, outside
Outer circle most path near circle maximum diameter, maximum outer circle have O-ring slot and dovetail groove, there is undergauge among outer circle, and outer circle bottom has
External screw thread, the half the circumference of the sleeve where it joins the shoulder above external screw thread have O-ring slot, and there are two diameters for 4 inner circle of sealing piston, and large diameter is in lower section, most
There is a hole parallel with axis and with minimum inner circle connection in the upper surface of large cylindrical.4 lower end of sealing piston and 7 outer cylinder 6 of spring
It is threadedly coupled.Flowing outer cylinder 5 is the tubular structure of inner circle and outer circle rule, and there are an external screw thread in outer circle top and bottom, in external screw thread
Side is the Short Cylinder Surface with O-ring slot.5 top and bottom of outer cylinder are flowed to connect with sealed outer cylinder 1 and 10 screw thread of lower contact respectively
It connects.7 outer cylinder 6 of spring is tubular structure, and there is sealing cylinder face internal screw thread in inner circle upper end, and O-ring slot is arranged at outer circle lower part.Outside spring 7
It 6 lower ends of cylinder simultaneously can be free to slide with the socket of lower contact 10.7 mandrel of spring is slender rod piece, and there are the half the circumference of the sleeve where it joins the shoulder of protrusion, bullet in outer circle lower end
7 mandrel of spring is mounted on the inside of spring 7 and can be free to move longitudinally, and upper end and sealing piston 4 are socketed, 7 mandrel lower end surface of spring with
Lower contact 10 contacts.Adjustment gasket 9 is provided between 7 mandrel lower part of 7 lower end of spring and spring, adjustment gasket 9 is to be socketed in bullet
Circular ring shape laminated structure on 7 mandrel of spring, outer diameter are less than 7 outer cylinder of spring, 6 internal diameter.10 cylindrical structure of lower contact, under outer circle
There is undergauge in portion, and there is external screw thread in the bottom of undergauge.10 upper and lower part of lower contact is hollow, inner circle be successively from top to bottom straight mouth and
Internal screw thread has one and axis coaxle circular hole in the middle part of lower contact 10, and the circular hole parallel with axis, and circle are evenly distributed with around circular hole
Hole and lower cavity connection.Outer circle is smoothly connected after sealed outer cylinder 1, flowing outer cylinder 5 and lower contact 10 connect.Setting in O-ring slot
There is O-ring, material is oil resistant rubber.
Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also
Including technical solution consisting of any combination of the above technical features.
Claims (5)
1. a kind of heavy oil wells pumping wax-proofing apparatus, which is characterized in that be shorted (2), sealing shroud including sealed outer cylinder (1), sand control
(3), sealing piston (4), flowing outer cylinder (5), spring (7) outer cylinder (6), spring (7), spring (7) mandrel and lower contact (10)；Institute
It states sealed outer cylinder (1) lower end to be threadedly coupled with flowing outer cylinder (5), the sealed outer cylinder (1) is outer circle rule, and inner circle distribution is different
The tubular structure of diameter and half the circumference of the sleeve where it joins the shoulder, inner circle upper and lower side are internal screw threads, another internal screw thread near the lower end of threaded upper ends seals outer
It is the minimum diameter of inner circle that, which there is expanding, expanding lower end in cylinder (1) inner circle middle section,；It is lower hollow that the sand control, which is shorted (2),
And outer circle step structure, the big half the circumference of the sleeve where it joins the shoulder end face of outer circle have the through-hole of circumference uniform distribution along coaxial direction, the sand control is shorted (2) lower part
Hollow and be successively straight mouth and internal screw thread from the bottom up, the sand control is shorted (2) external screw thread and connect with sealed outer cylinder (1), interior spiral shell
Line is connect with sealing shroud (3)；The sealing shroud (3) is made of two various outer diameter hollow cylinders, small column above, greatly
Round and roundlet has O-ring slot close to bottom by conical transition, big end inner circle rule, small end inner circle, and small end outer circle top has outer
Screw thread, small end cylinder have the radial hole for running through wall thickness at Gewindefreistiche；The sealing piston (4) is that outer circle is not advised
Then and the cylindrical body of lower end inner hollow, sealing piston (4) the outer circle most path is topmost, outer circle near outer circle maximum diameter
Most path, maximum outer circle have O-ring slot and dovetail groove, there is undergauge among outer circle, and there are external screw thread, external screw thread top in outer circle bottom
Half the circumference of the sleeve where it joins the shoulder have an O-ring slot, there are two diameter, large diameters to have in lower section, the upper surface of maximum outer circle for sealing piston (4) inner circle
One hole parallel with axis and with minimum inner circle connection, sealing piston (4) lower end and spring (7) outer cylinder (6) screw thread connect
It connects；Flowing outer cylinder (5) is the tubular structure of inner circle and outer circle rule, and there are an external screw thread in outer circle top and bottom, in external screw thread
Side is the Short Cylinder Surface with O-ring slot, flowing outer cylinder (5) top and bottom respectively with sealed outer cylinder (1) and lower contact
(10) it is threadedly coupled；Spring (7) outer cylinder (6) is tubular structure, and there are sealing cylinder face internal screw thread, outer circle lower part in inner circle upper end
There is O-ring slot, spring (7) outer cylinder (6) lower end simultaneously can be free to slide with lower contact (10) socket；Spring (7) mandrel
It is slender rod piece, there is the half the circumference of the sleeve where it joins the shoulder of protrusion in outer circle lower end, and spring (7) mandrel is mounted on spring (7) inside and can be free to move longitudinally,
Upper end and sealing piston (4) are socketed, and spring (7) mandrel lower end surface is contacted with lower contact (10)；Lower contact (10) cylindrical body
Undergauge is arranged at structure, outer circle lower part, and there is external screw thread in the bottom of undergauge, and lower contact (10) upper and lower part is hollow, inner circle from
On be successively straight mouth and internal screw thread down, have one and axis coaxle circular hole in the middle part of the lower contact (10), it is equal around circular hole
Cloth the circular hole parallel with axis, and circular hole and lower cavity connection.
2. a kind of heavy oil wells pumping wax-proofing apparatus as described in claim 1, it is characterised in that: the sand control is shorted (2) outer circle
Big half the circumference of the sleeve where it joins the shoulder end face has the through-hole of 6 circumference uniform distributions along coaxial direction.
3. a kind of heavy oil wells pumping wax-proofing apparatus as claimed in claim 2, it is characterised in that: spring (7) lower end and bullet
Adjustment gasket (9) is provided between spring (7) mandrel lower part, adjustment gasket (9) is the annulus being socketed on spring (7) mandrel
Shape laminated structure, outer diameter are less than spring (7) outer cylinder (6) internal diameter.
4. a kind of heavy oil wells pumping wax-proofing apparatus as claimed in claim 3, it is characterised in that: the sealed outer cylinder (1), stream
Outer circle is smoothly connected after dynamic outer cylinder (5) and lower contact (10) connection.
5. a kind of heavy oil wells pumping wax-proofing apparatus as claimed in claim 4, it is characterised in that: be provided with O in the O-ring slot
Type circle, material are oil resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057307.5U CN208702389U (en) | 2018-07-05 | 2018-07-05 | A kind of heavy oil wells pumping wax-proofing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057307.5U CN208702389U (en) | 2018-07-05 | 2018-07-05 | A kind of heavy oil wells pumping wax-proofing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702389U true CN208702389U (en) | 2019-04-05 |
Family
ID=65937783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821057307.5U Withdrawn - After Issue CN208702389U (en) | 2018-07-05 | 2018-07-05 | A kind of heavy oil wells pumping wax-proofing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208702389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
-
2018
- 2018-07-05 CN CN201821057307.5U patent/CN208702389U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
| CN108643872B (en) * | 2018-07-05 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Viscous crude well swabbing wax control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20240220 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20240220 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |