CN108643872A - 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
- CN108643872A CN108643872A CN201810728047.8A CN201810728047A CN108643872A CN 108643872 A CN108643872 A CN 108643872A CN 201810728047 A CN201810728047 A CN 201810728047A CN 108643872 A CN108643872 A CN 108643872A
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- CN
- China
- Prior art keywords
- spring
- circle
- outer circle
- cylinder
- outer barrel
- 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.)
- Granted
Links
- 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 38
- 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
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims 1
- 239000010779 crude oil Substances 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 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
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
- Earth Drilling (AREA)
Abstract
The present invention 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 barrel, spring outer barrel, spring, central spindle of the spring, adjust pad 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, to ensure that it is smooth that pumping tool removes in oil pipe.
Description
Technical field
The present invention relates to oil-field thick-oil well pumping to ask production equipment technical field, specifically a kind of heavy oil wells pumping wax control dress
It sets.
Background technology
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, causing pumping tool that predetermined depth cannot be descended to ask production, 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, of 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.
Invention content
Goal of the invention：The purpose of the present invention is for the deficiency in current technology, provide a kind of heavy oil wells pumping wax control dress
It sets, the heavy oil wells pumping construction time can be shortened, operating expenses is greatly reduced, reduce equipment cost, meanwhile, construction is simple, drop
Low labor intensity.
Technical solution：To achieve the above object, the present invention is provided outside a kind of heavy oil wells pumping wax-proofing apparatus, including sealing
Cylinder, sand control short circuit, sealing shroud, sealing piston, flowing outer barrel, spring outer barrel, spring, central spindle of the spring and lower contact；The sealing
Outer barrel lower end is threadedly coupled with flowing outer barrel, and the sealed outer cylinder is outer circle rule, and inner circle is distributed the cylinder of different-diameter and half the circumference of the sleeve where it joins the shoulder
Shape structure, inner circle upper and lower side are internal thread, another neighbour internal thread of lower end of threaded upper ends, sealed outer cylinder inner circle middle section
It is the minimum diameter of inner circle to have expanding, expanding lower end；The sand control short circuit is lower hollow and outer circle step structure, outer circle
Big half the circumference of the sleeve where it joins the shoulder end face has the through-hole of circumference uniform distribution along coaxial direction, the sand control short circuit lower hollow and be straight mouth successively from the bottom up
And internal thread, the sand control short circuit external screw thread are connect with sealed outer cylinder, internal thread is connect with sealing shroud；The sealing shroud is by two
A various outer diameter hollow cylinder composition, above, by conical transition, big end Inner compasses are then, small for great circle and roundlet for small column
End Inner circles have O-ring slot, small end outer circle top to have external screw thread close to bottom, and there are one pass through small end cylinder at Gewindefreistiche
The radial hole of wall-through thickness；The sealing piston is that outer circle is irregular and the cylinder of lower end inner hollow, outside the sealing piston
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, among outer circle
There are undergauge, outer circle bottom to have external screw thread, the half the circumference of the sleeve where it joins the shoulder above external screw thread has O-ring slot, and there are two straight for the sealing piston Inner circles
Diameter, large diameter is in lower section, there are one the upper surfaces of maximum outer circle hole parallel with axis and justifying unicom with minimum Inner, the sealing
Piston is threadedly coupled with spring outer barrel；It is described flowing outer barrel be inner circle and outer circle rule tubular structure, outer circle upper end with
It is the Short Cylinder Surface for having O-ring slot that, which there are external screw thread, external screw thread inboard in lower end, the flowing outer barrel top and bottom respectively with it is close
It seals outer barrel and lower contact is threadedly coupled；The spring outer barrel is tubular structure, and there are sealing cylinder face internal thread, outer circle in inner circle upper end
Lower part has O-ring slot, spring outer barrel lower end simultaneously can be free to slide with lower contact socket；The central spindle of the spring is elongate rod
Part, outer circle lower end have the half the circumference of the sleeve where it joins the shoulder of protrusion, central spindle of the spring to be mounted on spring inner and can free to move longitudinally, upper end and sealing piston
Socket, central spindle of the spring lower face 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 circles are straight mouth and internal thread successively from top to bottom, are connect under described
There are one centriciputs and axis coaxle circular hole, the circular hole parallel with axis is evenly distributed with around circular hole, and circular hole joins with lower cavity
It is logical.
As a kind of improvement of this programme, the big half the circumference of the sleeve where it joins the shoulder end face of sand control short circuit outer circle has 6 circumference equal along coaxial direction
The through-hole of cloth.
As a kind of improvement of this programme, adjust pad, institute are provided between the lower spring end and central spindle of the spring lower part
It is the circular ring shape laminated structure being socketed on central spindle of the spring to state adjust pad, and outer diameter is less than spring outer barrel internal diameter.
As a kind of improvement of this programme, the sealed outer cylinder, flowing outer barrel 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.
Advantageous effect：Heavy oil wells pumping wax-proofing apparatus of the present invention, in use, described device is connected to pumping pipe
Column lower part and tripping in oil well.When production is asked in heavy oil wells pumping, incipient stage, crude oil passes through in the heavy oil wells pumping wax-proofing apparatus
Access enters in the pumping tubing string above it, and liquid-column height increases in oil pipe, and the head of liquid rising in oil pipe reaches some value
When, the head of liquid compressed spring of plane in sealing piston is acted on, sealing piston is closed when moving down into the minimum diameter of outer barrel
The flow channel of liquid prevents crude oil in oil pipe wax deposition to prevent shaft bottom crude oil from rising to the height of beginning wax deposition.
It is provided with adjust pad between lower spring end and central spindle of the spring lower part, it, can be with by changing the quantity of adjust pad
Adjust the compressed value of spring, so change sealing piston it is closed when required oil pipe in minimum pressure, it is described thick to make
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,
To ensure that it is smooth that pumping tool removes in oil pipe.
Description of the drawings
Fig. 1, the heavy oil wells pumping wax-proofing apparatus structural schematic diagram；
Reference numerals list：1, sealed outer cylinder；2, sand control short circuit；3, sealing shroud；4, sealing piston；5, outer barrel is flowed；6, spring
Outer barrel；7, spring；8, central spindle of the spring；9, adjust pad；10, lower contact.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
It is a kind of heavy oil wells pumping wax-proofing apparatus as shown in Figure 1, including sealed outer cylinder 1, sand control short circuit 2, sealing shroud 3, close
Seal piston 4, flowing outer barrel 5,7 outer barrel 6 of spring, spring 7,7 mandrel of spring, adjust pad 9 and lower contact 10.Under sealed outer cylinder 1
End is threadedly coupled with flowing outer barrel 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 thread, another internal 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.Sand control short circuit 2 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
There is the through-hole of 6 circumference uniform distributions along coaxial direction.2 lower hollow of sand control short circuit and be straight mouth and internal thread successively from the bottom up,
2 external screw thread of sand control short circuit is connect with sealed outer cylinder 1, and internal thread is connect with sealing shroud 3.Sealing shroud 3 is by two various outer diameters
Hollow cylinder forms, and above, great circle and roundlet are by conical transition, and then, small end Inner circles are the bottom of close to for big end Inner compasses for small column
Portion has O-ring slot, small end outer circle top to have external screw thread, and there are one the radial directions for running through wall thickness at Gewindefreistiche for small end cylinder
Hole.Sealing piston 4 is that outer circle is irregular and the cylinder 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, have undergauge, outer circle bottom to have among outer circle
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 of sealing piston circles, and large diameter is in lower section, most
The upper surface of large cylindrical there are one with axis it is parallel and with minimum Inner justify unicom hole.4 lower end of sealing piston and 7 outer barrel 6 of spring
It is threadedly coupled.Flowing outer barrel 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 for having O-ring slot.5 top and bottom of outer barrel are flowed respectively to connect with sealed outer cylinder 1 and 10 screw thread of lower contact
It connects.7 outer barrel 6 of spring is tubular structure, and inner circle upper end has sealing cylinder face internal thread, outer circle lower part to have O-ring slot.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 is socketed with sealing piston 4,7 mandrel lower face of spring with
Lower contact 10 contacts.Adjust pad 9 is provided between 7 mandrel lower part of 7 lower end of spring and spring, adjust pad 9 is to be socketed in bullet
Circular ring shape laminated structure on 7 mandrel of spring, outer diameter are less than 7 outer barrel of spring, 6 internal diameter.10 cylindrical structure of lower contact, under outer circle
Portion has undergauge, the bottom of undergauge to have external screw thread.10 upper and lower part of lower contact is hollow, Inner circle be successively from top to bottom straight mouth and
Internal thread, there are one 10 middle parts of lower contact and axis coaxle circular hole, and the circular hole parallel with axis, and circle are evenly distributed with around circular hole
Hole and lower cavity unicom.Outer circle is smoothly connected after sealed outer cylinder 1, flowing outer barrel 5 and lower contact 10 connect.Setting in O-ring slot
It is oil resistant rubber to have O-ring, material.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (5)
1. a kind of heavy oil wells pumping wax-proofing apparatus, which is characterized in that including sealed outer cylinder (1), sand control short circuit (2), sealing shroud
(3), sealing piston (4), flowing outer barrel (5), spring (7) outer barrel (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 barrel (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 threads, another neighbour internal thread of 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,；The sand control short circuit (2) 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 have the through-hole of circumference uniform distribution, sand control short circuit (2) lower part along coaxial direction
Hollow and be straight mouth and internal thread successively from the bottom up, sand control short circuit (2) external screw thread is 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
Circle and roundlet are by conical transition, and then, small end Inner circles have O-ring slot, small end outer circle top to have outer to big end Inner compasses close to bottom
Screw thread, there are one the radial holes for running through wall thickness at Gewindefreistiche for small end cylinder；The sealing piston (4) is that outer circle is not advised
Then and the cylinder 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, have undergauge, outer circle bottom to have external screw thread, external screw thread top among outer circle
Half the circumference of the sleeve where it joins the shoulder have an O-ring slot, there are two diameter, large diameter has sealing piston (4) the Inner circles in lower section, the upper surface of maximum outer circle
One hole that is parallel with axis and justifying unicom with minimum Inner, sealing piston (4) lower end connects with spring (7) outer barrel (6) screw thread
It connects；The flowing outer barrel (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 for having O-ring slot, flowing outer barrel (5) top and bottom respectively with sealed outer cylinder (1) and lower contact
(10) it is threadedly coupled；Spring (7) outer barrel (6) is tubular structure, and there are sealing cylinder face internal thread, outer circle lower part in inner circle upper end
There are O-ring slot, spring (7) outer barrel (6) lower end simultaneously can be free to slide with lower contact (10) socket；Spring (7) mandrel
It is slender rod piece, outer circle lower end has the half the circumference of the sleeve where it joins the shoulder of protrusion, spring (7) mandrel to be mounted on spring (7) inside and can be free to move longitudinally,
Upper end is socketed with sealing piston (4), and spring (7) mandrel lower face is contacted with lower contact (10)；Lower contact (10) cylinder
Structure, outer circle lower part have undergauge, the bottom of undergauge to have external screw thread, and lower contact (10) upper and lower part is hollow, Inner circle from
On be straight mouth and internal thread successively down, in the middle part of the lower contact (10) there are one and axis coaxle circular hole, around circular hole
Cloth the circular hole parallel with axis, and circular hole and lower cavity unicom.
2. a kind of heavy oil wells pumping wax-proofing apparatus as described in claim 1, it is characterised in that：Sand control short circuit (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
Adjust pad (9) is provided between spring (7) mandrel lower part, the adjust pad (9) is the annulus being socketed on spring (7) mandrel
Shape laminated structure, outer diameter are less than spring (7) outer barrel (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 barrel (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：It is 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 |
|---|---|---|---|
| CN201810728047.8A CN108643872B (en) | 2018-07-05 | 2018-07-05 | Viscous crude well swabbing wax control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810728047.8A CN108643872B (en) | 2018-07-05 | 2018-07-05 | Viscous crude well swabbing wax control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108643872A true CN108643872A (en) | 2018-10-12 |
| CN108643872B CN108643872B (en) | 2024-02-20 |
Family
ID=63750477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810728047.8A Active CN108643872B (en) | 2018-07-05 | 2018-07-05 | Viscous crude well swabbing wax control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108643872B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878963A (en) * | 2021-03-15 | 2021-06-01 | 汇川石油科技(天津)有限公司 | Novel heavy oil well is with annotating agent wax deposition equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407630A (en) * | 1973-06-30 | 1975-09-24 | Heavy Oil Producers Services I | Oil wells |
| CN2300743Y (en) * | 1997-01-29 | 1998-12-16 | 辽河石油勘探局锦州采油厂 | Sand pump for thick oil well |
| CN2329761Y (en) * | 1998-01-19 | 1999-07-21 | 胜利石油管理局河口采油厂 | Pumping well flushing packer |
| CN2679356Y (en) * | 2004-03-01 | 2005-02-16 | 赵广友 | Downhole omnidirectional flow controller for chemical injection |
| CN101182761A (en) * | 2007-12-17 | 2008-05-21 | 重庆科技学院 | Pumping unit with pole |
| CN101298834A (en) * | 2008-05-28 | 2008-11-05 | 刘永建 | Ultralong pumping rod hot pipe assembly with high heat transfer characteristic |
| CN101525990A (en) * | 2009-04-17 | 2009-09-09 | 杨勇华 | Process for assisting thick oil exploitation and device thereof |
| CN104033140A (en) * | 2014-07-02 | 2014-09-10 | 张玉雪 | Pumping well pump lower injection agent mixing device |
| CN106703751A (en) * | 2015-07-17 | 2017-05-24 | 中国石油化工股份有限公司 | Thick oil production well immovable string downhole switch and switching on and switching off method |
| CN208702389U (en) * | 2018-07-05 | 2019-04-05 | 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 CN201810728047.8A patent/CN108643872B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407630A (en) * | 1973-06-30 | 1975-09-24 | Heavy Oil Producers Services I | Oil wells |
| CN2300743Y (en) * | 1997-01-29 | 1998-12-16 | 辽河石油勘探局锦州采油厂 | Sand pump for thick oil well |
| CN2329761Y (en) * | 1998-01-19 | 1999-07-21 | 胜利石油管理局河口采油厂 | Pumping well flushing packer |
| CN2679356Y (en) * | 2004-03-01 | 2005-02-16 | 赵广友 | Downhole omnidirectional flow controller for chemical injection |
| CN101182761A (en) * | 2007-12-17 | 2008-05-21 | 重庆科技学院 | Pumping unit with pole |
| CN101298834A (en) * | 2008-05-28 | 2008-11-05 | 刘永建 | Ultralong pumping rod hot pipe assembly with high heat transfer characteristic |
| CN101525990A (en) * | 2009-04-17 | 2009-09-09 | 杨勇华 | Process for assisting thick oil exploitation and device thereof |
| CN104033140A (en) * | 2014-07-02 | 2014-09-10 | 张玉雪 | Pumping well pump lower injection agent mixing device |
| CN106703751A (en) * | 2015-07-17 | 2017-05-24 | 中国石油化工股份有限公司 | Thick oil production well immovable string downhole switch and switching on and switching off method |
| CN208702389U (en) * | 2018-07-05 | 2019-04-05 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878963A (en) * | 2021-03-15 | 2021-06-01 | 汇川石油科技(天津)有限公司 | Novel heavy oil well is with annotating agent wax deposition equipment |
| CN112878963B (en) * | 2021-03-15 | 2023-03-31 | 汇川石油科技(天津)有限公司 | Heavy oil well is with annotating agent wax deposition equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108643872B (en) | 2024-02-20 |
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