CN105317402B - Paraffin removal unit for flowing well - Google Patents
Paraffin removal unit for flowing well Download PDFInfo
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- CN105317402B CN105317402B CN201410262115.8A CN201410262115A CN105317402B CN 105317402 B CN105317402 B CN 105317402B CN 201410262115 A CN201410262115 A CN 201410262115A CN 105317402 B CN105317402 B CN 105317402B
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- paraffin
- reversing arrangement
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- removal unit
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Abstract
The present invention relates to field of oil drilling more particularly to a kind of paraffin removal units for flowing well.The present invention proposes a kind of paraffin removal unit for flowing well, wherein the paraffin removal unit includes：The first reversing arrangement being arranged at the first position in flowing well；It is arranged in the second reversing arrangement of the second place in flowing well；Paraffin cleaner with paraffin cutting tile, the paraffin cleaner arrangement is between the first position and the second position between the second position, wherein, the paraffin cleaner is constructed to be permeable to move between the first position and the second position, and when it collides first reversing arrangement or second reversing arrangement, the direction of motion is changed into original side in the opposite direction.Paraffin removal unit according to the present invention can efficiently use the fluid dynamic energy of gravity and flowing well, repeatedly uplink and the falling in the case where being inputted almost without external energy, be carried out at the same time wax removal work.
Description
Technical field
The present invention relates to field of oil drilling more particularly to a kind of paraffin removal units for flowing well.
Background technology
In the prior art, mainly hot-washing wax remover, paraffin scraper wax removal, paraffin control with inhibitor etc. is used to arrange the Paraffin Removal of flowing well
It applies.
Hot-washing wax remover is that the flowing material (such as hot water or deep fat) after ground is heated is passed by cycle in the wellbore
Heat gives wellbore fluids, improves the temperature of wellbore fluids so that be re-dissolved in crude oil after wax melt deposition, to reach the mesh of wax removal
's.
Paraffin scraper wax removal is carried out using ground winch, is wound on the steel wire on winch drum after pulley by wax removal work
Tool through under lubricator in oil pipe, and it is up and down at tubing wax position, wax deposit is struck off, pit shaft is carried out by liquid stream.
Paraffin control with inhibitor is that Solid-state Chemistry is housed by the way that aqueous chemical wax-proofing agent is added into pit shaft or is connected in oil pipe
The pipe nipple of wax-proofing agent, wax-proofing agent reach wax control purpose after dissolving mixing in wellbore fluids.
Hot-washing wax remover and paraffin scraper wax removal are required to periodically carry out live workover treatment, this can influence production yields, simultaneously
Additional loss can be caused to equipment in operation process, it could even be possible to the accidents such as top drill chuck well occur；Utilize various chemistry
It is also one of main paraffin removal and control method that agent, which carries out Paraffin Removal, and this method is widely adopted, however, wax control result is manually managed
Being affected for the factors such as reason and oil well submergence, burden is increased to oil well management.
Invention content
For the defect of existing several Paraffin Removal measures, such as needs regular closing well operation or increase oil well management
(artificial) workload etc., the present invention propose a kind of paraffin removal unit, and paraffin cutting component is using flowing well self-energy in oil pipe
It is constantly automatic to move up and down so that wax cannot form accumulation in oil pipe, and be disposed of, and realize the mesh of flowing well Paraffin Removal
's.
In view of the above-mentioned problems, the present invention proposes a kind of paraffin removal unit for flowing well, wherein the paraffin removal unit packet
It includes：The first reversing arrangement being arranged at the first position in flowing well；It is arranged in second of the second place in flowing well
Reversing arrangement；Paraffin cleaner with paraffin cutting tile, paraffin cleaner arrangement is between the first position and the second position between the second position,
Wherein, the paraffin cleaner is constructed to be permeable to move between the first position and the second position, and is changed when it collides described first
When to device or second reversing arrangement, the direction of motion is changed into original side in the opposite direction.
Preferably, the paraffin cleaner include cylindrical body and on the outside of the cylindrical body on paraffin cutting tile, it is described
Paraffin cutting tile is switched by tile spring and acting between expansion state and rounding state for fluid.Expand when paraffin cutting tile is in
When the state of opening, tile can wipe the wax on tube wall off, realize wax removal function.
Preferably, maximum gauge of the paraffin cutting tile under expansion state is 61mm, and the maximum under rounding state is straight
Diameter is 56mm.When selecting the diameter, flow resistance can reduced and ensureing to reach best compromise between paraffin cutting effect.This
Place, term " maximum gauge " indicate that in the state of expansion or gathering, paraffin cutting tile is farthest apart from the cylindrical body central axes
Position at twice with the distance between cylindrical body central axes.It (can be by paraffin cutting tile in the cylindrical body
Axis is most interpreted as " radius " far from the distance between cylindrical body central axes).
Preferably, the paraffin cleaner further includes the reversing bar in the inner passage of the cylindrical body, the commutation
The commutation of bar makes the inner passage switch between opening state and closed state.When paraffin cleaner and the first reversing arrangement touch
When hitting, reversing bar moves down (direction far from well head) relative to cylindrical body, leads to the engagement of reversing bar and cylindrical body inner wall
Point separates, therefore the inner passage of cylindrical body is opened.When paraffin cleaner and the second reversing arrangement collide, reversing bar is relative to cylinder
Shape main body moves up (towards the direction of well head), causes the junction of reversing bar and the inner wall of cylindrical body stuck, therefore tubular master
The inner passage of body is disconnected.
Preferably, the reversing bar is configured to by being touched with first reversing arrangement or with second reversing arrangement
It hits to commutate.When wax removal, paraffin removal device for oil pipe reversing bar is made to open the inner passage of paraffin cleaner first, paraffin cleaner is fallen after rise by dead weight；
It when reaching the position of the second reversing arrangement, collides therewith, reversing bar closes paraffin cleaner inner passage, by bottom working fluid
(gas) energy makes paraffin cleaner uplink.The fluid sprayed upwards can not be by the inner passage of cylindrical body, but from tubular master
It is flowed in the annular space of body and oil pipe, by paraffin cutting tile from rounding state top to expansion state, by being close to tube inner wall when uplink
Paraffin cutting tile wipes wax off with pipe friction；When reaching at the first reversing arrangement, the reversing bar of paraffin cleaner and the first reversing arrangement
Collision, reversing bar open the inner passage of paraffin cleaner, then the fluid sprayed upwards can branch to the inner passage of cylindrical body, wax removal
Device is fallen after rise by dead weight, meanwhile, fluid reduces the impact of paraffin cutting tile, is aided with the effect of tile spring, paraffin cutting tile is by expanding
The state of opening is converted to rounding state.By this method, the process for repeating downlink falling and uplink wax removal, realizes automatic wax removal.
Preferably, first reversing arrangement includes the first buffer spring and the catcher for the paraffin cleaner.When need
When recycling or overhauling paraffin removal device for oil pipe, paraffin cleaner can be captured by catcher at first position and be taken out.In this way, cleaning side
Just so that equipment is for long-time service.
Preferably, first reversing arrangement is arranged in well head, when the paraffin cleaner is moved to institute from the first position
When stating the second position, the inner passage is opened, when the paraffin cleaner is moved to the first position from the second position,
The inner passage cut-out.
Preferably, second reversing arrangement includes the second buffer spring and screens device, and the screens device is configured to institute
State the specific location that the second reversing arrangement is fixed to flowing well.Second reversing arrangement is mountable to underground wax deposition point to shaft bottom and appoints
Meaning tubing coupling position.
Preferably, first buffer spring or second buffer spring are configured to：When the paraffin cleaner and described the
When one reversing arrangement or second reversing arrangement collide, first buffer spring or second buffer spring correspondingly will
The kinetic energy of the paraffin cleaner is converted to elastic potential energy and discharges again so that the paraffin cleaner changes the direction of motion.By this method, first
Buffer spring or the second buffer spring play the role of buffering, slow down collision punching when paraffin cleaner rises to well head or falls after rise
It hits, extends the service life of entire paraffin removal unit, also reduce the probability of happening of down-hole accident simultaneously.
Preferably, the paraffin cleaner is moved to the second position by gravity from the first position, and passes through blowing
The fluid impact of well is moved to the first position from the second position.
Paraffin removal unit according to the present invention can efficiently use the fluid dynamic energy of gravity and flowing well, almost without external energy
Repeatedly uplink and falling in the case of amount input is carried out at the same time wax removal work.It arranges, using very flexibly, work will not be delayed
When, the burden of labor management will not be increased.It is split type construction so that replace, clean it is very convenient；The design of spring makes clearly
The impact force of wax device is buffered, and the service life of equipment is extended.
Above-mentioned technical characteristic may be combined in various suitable ways or be substituted by equivalent technical characteristic, as long as can reach
To the purpose of the present invention.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 shows the paraffin removal unit according to the present invention for flowing well；
Fig. 2 shows the enlarged diagram of the encircled portion in Fig. 1.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not according to actual ratio.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings.
The present invention proposes a kind of paraffin removal unit 10 for flowing well.
Fig. 1 shows the paraffin removal unit 10 according to the present invention for flowing well.As seen from Figure 1, paraffin removal unit 10 wraps
It includes：First reversing arrangement 3 of (be, for example, well head at) at the first position being arranged in flowing well, the be arranged in flowing well
The second reversing arrangement 1 at two positions and paraffin cleaner 2.As seen from Figure 1, paraffin cleaner 2 is arranged in the first reversing arrangement 3 and second
Between reversing arrangement 1.Wherein, paraffin cleaner 2 is constructed to be permeable to move between the first reversing arrangement 3 and the second reversing arrangement 1, and
When it collides the first reversing arrangement 3 or the second reversing arrangement 1, the direction of motion is changed into the side opposite with original direction
To.
Paraffin cleaner 2 is specifically introduced first below.Fig. 2 shows the enlarged diagram of paraffin cleaner 2.It can clearly be seen by Fig. 2
Go out, paraffin cleaner 2 has cylindrical body 6.Paraffin cutting tile 5 is disposed on the outside of the barrel of cylindrical body 6.Paraffin cutting tile 5 can pass through
Tile spring loads, to switch between expansion state and rounding state.Preferably, paraffin cutting tile 5 is under expansion state
Maximum gauge is 61mm, and the maximum gauge under rounding state is 56mm.Herein, term " maximum gauge " indicates expanding or receiving
In the state of holding together, paraffin cutting tile is apart from the cylindrical body central axes most far between the cylindrical body central axes
Twice of distance.(can by paraffin cutting tile apart from the cylindrical body central axes most far from in the cylindrical body
The distance between axis is interpreted as " radius ").Under expansion state, the maximum gauge of paraffin cutting tile 5 may be configured as close to oil
The internal diameter of pipe.When paraffin cutting tile 5 is in expansion state, tile can wipe the wax on tube wall off, realize wax removal function.
There is the through-hole 7 and through-hole 8 from internal stretch to outside, therefore through-hole 7, through-hole 8 can on the barrel of cylindrical body 6
The path circulated for fluid is collectively formed with the inner passage 10 with cylindrical body 6.
Paraffin cleaner 2 further includes the reversing bar 4 in the inner passage 10 of cylindrical body 6, in the commutation of reversing bar 4 makes
Portion channel 10 switches between opening state and closed state.
Reversing bar 4 is configured to commutate by the collision with the first reversing arrangement 3 or the second reversing arrangement 1.When paraffin cleaner 2
When being collided with the first reversing arrangement 3 (Fig. 1), reversing bar 4 moves down (Fig. 2) relative to cylindrical body 6, leads to reversing bar 4 and tubular
The junction 9 of 6 inner wall of main body disconnects, therefore the inner passage 10 of through-hole 7, through-hole 8 and cylindrical body 6 is together formed for flowing
The path of body circulation.When paraffin cleaner 2 and the second reversing arrangement 1 collide (Fig. 1), reversing bar 4 is moved up relative to cylindrical body 6
(Fig. 2) causes reversing bar 4 and the junction 9 of the inner wall of cylindrical body 6 stuck, therefore through-hole 7, through-hole 8 and cylindrical body 6
The flow path that inner passage 10 is collectively formed is disconnected.By this method, paraffin cleaner 2 can be by gravity from the first reversing arrangement 3
Place is moved at the second reversing arrangement 1, and is moved to the first commutation from the second reversing arrangement 1 by the fluid impact of flowing well
At device 3.
First reversing arrangement 3 for example may be arranged at well head.Second reversing arrangement 1 is mountable to underground wax deposition point to shaft bottom and appoints
Meaning tubing coupling position.So, internal when paraffin cleaner 2 is moved to from the first reversing arrangement 3 at the second reversing arrangement 1
Channel 10 is opened, and when paraffin cleaner is moved to from the second reversing arrangement 1 at the first reversing arrangement 3, inner passage 10 blocks.
First reversing arrangement 3 may include the first buffer spring and the catcher for paraffin cleaner 2.When needs recycle or overhaul
When paraffin removal device for oil pipe 2, paraffin cleaner 2 can be captured by catcher at the first reversing arrangement 3 and be taken out.Second reversing arrangement 1 can
Including the second buffer spring and screens device, screens device for example may be configured to the second reversing arrangement 1 being fixed to the specific of flowing well
At position.
First buffer spring or the second buffer spring are configured to：When paraffin cleaner 2 and the commutation of the first reversing arrangement 3 or second fill
When setting 1 collision, the kinetic energy of paraffin cleaner 2 is correspondingly converted to elastic potential by first buffer spring or second buffer spring
It can discharge again so that the paraffin cleaner changes the direction of motion.By this method, the first buffer spring or the second buffer spring play slow
The effect of punching, slows down collision impact when paraffin cleaner 2 rises to well head or falls after rise, and extend entire paraffin removal unit uses the longevity
Life also reduces the probability of happening of down-hole accident simultaneously.
When wax removal, paraffin removal device for oil pipe reversing bar 4 is made to open the inner passage 10 of paraffin cleaner 2 first, paraffin cleaner 2 leans on returns certainly
It falls；It when reaching the position of the second reversing arrangement 1, collides therewith, reversing bar 4 closes paraffin cleaner inner passage 10, by bottom current
Hydrodynamic body (gas) energy makes 2 uplink of paraffin cleaner, and when uplink is wiped off by the paraffin cutting tile 5 for being close to tube inner wall with pipe friction
Wax；When reaching well head (i.e. at the first reversing arrangement 3), the reversing bar 4 of paraffin cleaner 2 and the first reversing arrangement 3 for being located at well head
Collision, reversing bar 4 open the inner passage 10 of paraffin cleaner 2.By this method, the process of downlink falling and uplink wax removal is repeated, it is real
Now automatic wax removal.When need recycle or check paraffin removal device for oil pipe 2 when, can by the catcher in the first reversing arrangement of manual operation 3,
Recycling is taken out when paraffin removal device for oil pipe 2 reaches well head or is checked.
Paraffin removal unit according to the present invention can efficiently use the fluid dynamic energy of gravity and flowing well, almost without external energy
Repeatedly uplink and falling in the case of amount input is carried out at the same time wax removal work.It arranges, using very flexibly, work will not be delayed
When, the burden of labor management will not be increased.It is split type construction so that replace, clean it is very convenient；The design of spring makes clearly
The impact force of wax device is buffered, and the service life of equipment is extended.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but include all technical solutions fallen within the scope of the appended claims.
Claims (7)
1. the paraffin removal unit for flowing well, which is characterized in that the paraffin removal unit includes：
The first reversing arrangement being arranged at the first position in flowing well；
It is arranged in the second reversing arrangement of the second place in flowing well；
Paraffin cleaner with paraffin cutting tile, paraffin cleaner arrangement is between the first position and the second position between the second position,
Wherein, the paraffin cleaner is constructed to be permeable to move between the first position and the second position, and when it collides described
When one reversing arrangement or second reversing arrangement, the direction of motion is changed into original side in the opposite direction；
The paraffin cleaner includes cylindrical body and the paraffin cutting tile on cylindrical body outside, and the paraffin cutting tile passes through
Tile spring and acting between expansion state and rounding state for fluid switch；
The paraffin cleaner further include positioned at the cylindrical body inner passage in reversing bar, the upside of the cylindrical body and
Downside has the through-hole that can be connected with the inner passage, and the inner wall of the cylindrical body is described interior with that can control
The commutation at the junction that portion channel is open and shut off, the reversing bar makes the inner passage in opening state and closed state
Between switch, first reversing arrangement is arranged in well head, when the paraffin cleaner is moved to described second from the first position
When position, the inner passage is opened, described interior when the paraffin cleaner is moved to the first position from the second position
Portion channel is cut off.
2. paraffin removal unit according to claim 1, which is characterized in that maximum of the paraffin cutting tile under expansion state is straight
Diameter is 61mm, and the maximum gauge under rounding state is 56mm.
3. paraffin removal unit according to claim 2, which is characterized in that the reversing bar is configured to by being changed with described first
It commutates to device or with the collision of second reversing arrangement.
4. paraffin removal unit according to claim 3, which is characterized in that first reversing arrangement includes the first buffer spring
With the catcher for the paraffin cleaner.
5. paraffin removal unit according to claim 4, which is characterized in that second reversing arrangement includes the second buffer spring
With screens device, the screens device is configured to for second reversing arrangement to be fixed to the specific location of flowing well.
6. paraffin removal unit according to claim 5, which is characterized in that first buffer spring or second buffering elastic
Spring is configured to：When the paraffin cleaner and first reversing arrangement or second reversing arrangement collide, first buffering
The kinetic energy of the paraffin cleaner is correspondingly converted to elastic potential energy and discharged again by spring or second buffer spring so that described clear
Wax device changes the direction of motion.
7. paraffin removal unit according to claim 4, which is characterized in that the paraffin cleaner is by gravity from the first position
It is moved to the second position, and the first position is moved to from the second position by the fluid impact of flowing well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262115.8A CN105317402B (en) | 2014-06-12 | 2014-06-12 | Paraffin removal unit for flowing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262115.8A CN105317402B (en) | 2014-06-12 | 2014-06-12 | Paraffin removal unit for flowing well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317402A CN105317402A (en) | 2016-02-10 |
| CN105317402B true CN105317402B (en) | 2018-08-17 |
Family
ID=55245605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262115.8A Active CN105317402B (en) | 2014-06-12 | 2014-06-12 | Paraffin removal unit for flowing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105317402B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104770B (en) * | 2018-01-19 | 2019-12-20 | 西南石油大学 | Novel paraffin removal and scale removal device suitable for self-blowing oil production well |
| CN109138921B (en) * | 2018-10-31 | 2020-11-17 | 延安奇源石油工程技术服务有限公司 | Automatic paraffin scraper for self-blowing well |
| CN116927722B (en) * | 2023-08-05 | 2024-05-10 | 东北石油大学 | Oil pipe paraffin removal and descaling method and assembly and device for implementing same |
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| US3395759A (en) * | 1966-09-09 | 1968-08-06 | Mobil Oil Corp | Well tool pumpable through a flowline |
| US4287948A (en) * | 1979-03-30 | 1981-09-08 | Haggard I. D. Wiper, Inc. | Tubular member interior wiper |
| CN88212806U (en) * | 1988-04-02 | 1988-12-07 | 四川石油管理局钻采工艺研究所 | Trunk piston for oil well desintering wax |
| CN1065119A (en) * | 1992-01-07 | 1992-10-07 | 吉林省油田管理局 | Rotary wax wiper |
| CN2206836Y (en) * | 1994-05-17 | 1995-09-06 | 王传贤 | Self-propelled flexibility wax cleaner for oil pipe |
| CN2767657Y (en) * | 2005-01-24 | 2006-03-29 | 晁建伟 | Automatic wax removal apparatus for pumping rod |
| CN202900057U (en) * | 2012-08-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Paraffin removal pipe column for oil well |
-
2014
- 2014-06-12 CN CN201410262115.8A patent/CN105317402B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3395759A (en) * | 1966-09-09 | 1968-08-06 | Mobil Oil Corp | Well tool pumpable through a flowline |
| US4287948A (en) * | 1979-03-30 | 1981-09-08 | Haggard I. D. Wiper, Inc. | Tubular member interior wiper |
| CN88212806U (en) * | 1988-04-02 | 1988-12-07 | 四川石油管理局钻采工艺研究所 | Trunk piston for oil well desintering wax |
| CN1065119A (en) * | 1992-01-07 | 1992-10-07 | 吉林省油田管理局 | Rotary wax wiper |
| CN2206836Y (en) * | 1994-05-17 | 1995-09-06 | 王传贤 | Self-propelled flexibility wax cleaner for oil pipe |
| CN2767657Y (en) * | 2005-01-24 | 2006-03-29 | 晁建伟 | Automatic wax removal apparatus for pumping rod |
| CN202900057U (en) * | 2012-08-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Paraffin removal pipe column for oil well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105317402A (en) | 2016-02-10 |
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