CN110485960A - Pipeline compound lining device - Google Patents
Pipeline compound lining device Download PDFInfo
- Publication number
- CN110485960A CN110485960A CN201910740052.5A CN201910740052A CN110485960A CN 110485960 A CN110485960 A CN 110485960A CN 201910740052 A CN201910740052 A CN 201910740052A CN 110485960 A CN110485960 A CN 110485960A
- Authority
- CN
- China
- Prior art keywords
- cylindrical tube
- annular piston
- seal ring
- pressure
- elastic seal
- 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.)
- Pending
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 238000002347 injection Methods 0.000 claims abstract description 81
- 239000007924 injection Substances 0.000 claims abstract description 81
- 239000002184 metal Substances 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims description 121
- 238000006073 displacement reaction Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000037452 priming Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 2
- 230000002844 continuous effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
Abstract
The invention discloses a kind of pipeline compound lining device, including cylindrical tube, guide head, control connector, annular seal assembly, metal inner lining pipe into；One end of cylindrical tube is used for injection pressure liquid, and the other end is connect with head is guided into；Control connector is arranged in the central duct of cylindrical tube；Annular seal assembly includes upper annular seal assembly, lower annular seal assembly, and upper annular seal assembly is set on the first cylindrical tube, and lower annular seal assembly is set on the second cylindrical tube；Metal inner lining pipe sleeve is located at except annular seal assembly and cylindrical tube.The configuration of the present invention is simple, reliable, easy for construction, operating cost is low, assists without priming system, without the components and auxiliary equipment to involve great expense, without large-scale water conservancy fracturing unit truck.
Description
Technical field
The invention belongs to oil extraction in oil field production gas technology fields, and in particular to a kind of pipeline compound lining device.
Background technique
In oil-gas field development production process, with the increase of production time, various geologic(al) factors and artificial measures can
Different degrees of influence is generated to wellbore casing, causes that casing is run-down, corrosion failure, or due to exploitation, needs to block
When the preforation tunnel of the corresponding wellbore casing of a certain oil and gas reservoir, need to carry out closure repairing to the regional area of wellbore casing.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of pipeline compound lining devices.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of pipeline compound lining device, which applies in pipeline,
Including cylindrical tube, guide head, control connector, annular seal assembly, metal inner lining pipe into；
The cylindrical tube includes the first cylindrical tube, connecting tube, the second cylindrical tube；The one of first cylindrical tube
End is used for injection pressure liquid, and the other end is connect by connecting tube with one end of the second cylindrical tube, second cylindrical tube
The other end is connect with head is guided into；First cylindrical tube and the second cylindrical tube are radially respectively arranged with several pressure
Liquid injector tunnel；
The control connector is arranged in the central duct of cylindrical tube, for being connected to the first cylindrical drum intracorporal first
Pressure fluid storehouse and connecting tube and the second cylindrical drum intracorporal second pressure liquid storehouse；Be also used to by with match on the first cylindrical tube
Pressure fluid in first pressure liquid storehouse is injected into the outside of the first cylindrical tube by the pressure fluid injector tunnel for closing setting；
The annular seal assembly includes upper annular seal assembly, lower annular seal assembly, the upper annular seal assembly
Be set on the first cylindrical tube, for after the driving by the pressure fluid from first pressure liquid storehouse to the to be composite of pipeline
Region upper end and the sealing of metal inner lining pipe upper end；The lower annular seal assembly is set on the second cylindrical tube, for by
The region lower end and metal inner lining pipe lower end to be composite of pipeline are sealed after to the driving of the pressure fluid from second pressure liquid storehouse；
The metal inner lining pipe sleeve is located at except annular seal assembly and cylindrical tube, and with the outer wall of cylindrical tube it
Between formed accommodate pressure fluid cavity.
In above scheme, the control connector includes cylindrical connector drum, guiding steel column, shear pin, the guiding
Steel column is fixed on the one end of cylindrical connector drum towards injection pressure liquid in the first cylindrical tube by shear pin.
In above scheme, the axis of the cylinder connector drum sets up connection first pressure liquid storehouse and second pressure liquid
The first pressure liquid injector tunnel in storehouse, the cylinder connector drum radially radially correspond to position with the first cylindrical tube
Install the second pressure liquid injector tunnel for being equipped with connection；Being provided on the guiding steel column can be with second pressure liquid injector tunnel
Matched third pressure fluid injector tunnel.
In above scheme, the upper annular seal assembly includes first annular piston, the first elastic seal ring, the second annular
Piston, the second elastic seal ring, the first annular piston and the second annular piston are separately positioned on the two of the first cylindrical tube
Side and relative displacement, the first elastic seal ring is arranged on the direction of displacement of the first annular piston, and second annular is living
Second elastic seal ring is set on the direction of displacement of plug.
In above scheme, the first annular piston abuts the distal face and the first cylinder of the end face of the first elastic seal ring
First annular piston fluid injection chamber is formed between one end of cylinder, second annular piston abuts the end face of the second elastic seal ring
Distal face and the first cylindrical tube the other end between form the second annular piston fluid injection chamber.
In above scheme, the 4th pressure fluid injection of the first annular piston fluid injection chamber and the first cylindrical tube radially
Channel connection；The second annular piston fluid injection chamber is connected to the 5th pressure fluid injection channel of the first cylindrical tube radially.
In above scheme, the lower annular seal assembly includes third annular piston, third elastic seal ring, fourth annular
Piston, the 4th elastic seal ring, the third annular piston and fourth annular piston are separately positioned on the two of the second cylindrical tube
Side and relative displacement, third elastic seal ring is arranged on the direction of displacement of the third annular piston, and the fourth annular is living
4th elastic seal ring is set on the direction of displacement of plug.
In above scheme, the third annular piston abuts the distal face and the second cylinder of the end face of third elastic seal ring
Third annular piston fluid injection chamber is formed between cylinder, the fourth annular piston abuts the distal end of the end face of the 4th elastic seal ring
Fourth annular piston fluid injection chamber is formed between face and the second cylindrical tube.
In above scheme, the 6th pressure fluid injection of the third annular piston fluid injection chamber and the second cylindrical tube radially
Channel connection；The fourth annular piston fluid injection chamber is connected to the 7th pressure fluid injection channel of the second cylindrical tube radially.
In above scheme, second elastic seal ring, third elastic seal ring respectively with the inner wall two of metal inner lining pipe
End abuts；First elastic seal ring, the 4th elastic seal ring are after being compressed axially and being radially expanded, respectively and in pipeline
Wall both ends abut.
Compared with prior art, the configuration of the present invention is simple, reliable, easy for construction, operating cost is low, without priming system it is auxiliary
It helps, without the components and auxiliary equipment to involve great expense, without large-scale water conservancy fracturing unit truck.
Detailed description of the invention
Fig. 1 provides a kind of structural schematic diagram of pipeline compound lining device for the embodiment of the present invention；
Fig. 2 provides a kind of structural schematic diagram of pipeline compound lining device in the application for the embodiment of the present invention；
Fig. 3 provides a kind of pipeline compound lining device to the structure after the sealing of metal inner lining pipe both ends for the embodiment of the present invention
Schematic diagram；
Fig. 4 provides a kind of pipeline compound lining device to the structure after the entire metal inner lining seal of tube for the embodiment of the present invention
Schematic diagram.
Wherein, 1- pipeline, 2- cylindrical tube, 3- guide into head, 4- control connector, 5- annular seal assembly, in 6- metal
Bushing pipe, the first cylindrical tube of 21-, 22- connecting tube, the second cylindrical tube of 23-, 24- top connection, 211- first pressure liquid storehouse,
221- second pressure liquid storehouse, the 4th pressure fluid injection channel 212-, the 5th pressure fluid injection channel 213-, the 6th pressure fluid of 231-
Injection channel, the 7th pressure fluid injection channel 232-, 61- cavity, 41- cylinder connector drum, 42- guiding steel column, 43- shearing
Pin, 411- first pressure liquid injector tunnel, 412- second pressure liquid injector tunnel, 421- third pressure fluid injector tunnel, on 51-
The first annular piston of annular seal assembly, 511-, the first elastic seal ring of 512-, the second ring of 513- under annular seal assembly, 52-
Shape piston, the second elastic seal ring of 514-, 521- third annular piston, 522- third elastic seal ring, 523- fourth annular are living
Plug, the 4th elastic seal ring of 524-, the first annular piston fluid injection chamber of 5111-, 5131- the second annular piston fluid injection chamber, 5211-
Three annular piston fluid injection chambers, 5231- fourth annular piston fluid injection chamber.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of pipeline compound lining device, which applies in pipeline 1, such as Fig. 1
Shown, which applies in pipeline 1, including cylindrical tube 2, guide into first 3, control connector 4, annular it is close
Sealing assembly 5, metal inner lining pipe 6；
The cylindrical tube 2 includes sequentially connected first cylindrical tube 21, connecting tube 22, the second cylindrical tube 23；Institute
One end of the first cylindrical tube 21 is stated for injection pressure liquid, the other end of second cylindrical tube 23 is connect with guiding first 3 into；
First cylindrical tube 21 and the second cylindrical tube 23 are radially respectively arranged with several pressure fluid injector tunnels；
The cylindrical tube 2 includes sequentially connected first cylindrical tube 21, connecting tube 22, the second cylindrical tube 23；Institute
One end of the first cylindrical tube 21 is stated for injection pressure liquid, the other end of second cylindrical tube 23 is connect with guiding first 3 into；
First cylindrical tube 21 and the second cylindrical tube 23 are radially respectively arranged with several pressure fluid injector tunnels；
The control connector 4 is arranged in the central duct of the first cylindrical tube 21, for being connected to the second cylindrical tube
First pressure liquid storehouse 211 in 21 and the second pressure liquid storehouse 221 in connecting tube 22 and the second cylindrical tube 23；It is also used to lead to
It crosses and is injected into the pressure fluid in first pressure liquid storehouse 211 with the pressure fluid injector tunnel being equipped on the first cylindrical tube 21
The outside of first cylindrical tube 21；
The annular seal assembly 5 includes upper annular seal assembly 51, lower annular seal assembly 52, the upper ring packing
Component 51 is set on the first cylindrical tube 21, for right after the driving by the pressure fluid from first pressure liquid storehouse 211
The region upper end to be composite of pipeline 1 and the sealing of 6 upper end of metal inner lining pipe；The lower annular seal assembly 52 is set in the second cylinder
On cylinder 23, for after the driving by the pressure fluid from second pressure liquid storehouse 221 to the region lower end to be composite of pipeline 1
It is sealed with 6 lower end of metal inner lining pipe；
The metal inner lining pipe 6 is set in except annular seal assembly 5 and cylindrical tube 2, and outer with cylindrical tube 2
The cavity 61 for accommodating pressure fluid is formed between wall.
In this way, being located at first pressure liquid storehouse 211 and second pressure liquid after one end injection that pressure fluid passes through cylindrical tube 2
The pressure fluid in storehouse 221 drives annular seal assembly 5 to be displaced by pressure fluid injector tunnel, realizes the axial direction of annular seal assembly 5
It compresses and is radially expanded, high-pressure-resistant sealed is carried out to the region upper and lower side to be composite of pipeline 1, so that region to be composite in pipeline 1
Upper and lower ends sealed, the inner wall both ends of metal inner lining pipe 6 are squeezed so that metal inner lining pipe 6 both ends generate diameter
To plastic deformation, it is attached to the inner wall of pipeline 1, and then realize the high-pressure-resistant sealed at 6 both ends of metal inner lining pipe, later, described the
Pressure fluid in one pressure fluid storehouse 211 continues to pressure to control connector 4, and the pressure that the control connector 4 is subject to is super
After crossing setup pressure value, the pressure fluid injector tunnel in connection first pressure liquid storehouse 211, control connector 4 and cavity 61 is opened, pressure
Power liquid is injected into cavity 61, and the pressure fluid in the cavity 61 uniformly applies pressure to the inner wall of metal inner lining pipe 6, so that golden
Belonging to internal lining pipe 6 and generates radial plastic deformation, the outer wall of final entire metal inner lining pipe 6 is closely attached to the inner wall of pipeline 1, with
It, stops the pressure fluid injection of 2 one end of cylindrical tube, releases stress, and the annular seal assembly 5 resets, and withdraws from the present invention, and
Metal inner lining pipe 6 still keeps motionless, realization closure subsidy.
The one end of first cylindrical tube 21 for injection pressure liquid is connect by top connection 24 with uphole equipment.
The connecting tube 22 can use hose, realize being flexible coupling for the first cylindrical tube 21 and the second cylindrical tube 23,
It is of course also possible to determine the length and thickness of connecting tube 22 as needed.
The connecting tube 22 can also realize the first cylindrical tube 21 and the second cylindrical tube using equivalent elements such as sleeves
23 rigid connection.
The control connector 4 includes cylindrical connector drum 41, guiding steel column 42, shear pin 43, the guiding steel column
42 are fixed on side of the cylindrical connector drum 41 towards injection pressure liquid in the first cylindrical tube 21 by shear pin 43.
The axis of the cylinder connector drum 41 sets up connection first pressure liquid storehouse 211 and second pressure liquid storehouse 221
First pressure liquid injector tunnel 411, it is described cylinder connector drum 41 radially with the first cylindrical tube 21 radially
Corresponding position is provided with the second pressure liquid injector tunnel 412 of connection；Being provided on the guiding steel column 42 can be with the second pressure
412 matched third pressure fluid injector tunnel 421 of power liquid injector tunnel.
First pressure liquid injector tunnel 411 and third pressure fluid injector tunnel 421 are dislocation hole, the first pressure
Liquid injector tunnel 411 keeps being connected to first pressure liquid storehouse 211 and second pressure liquid storehouse 221 always.
Pressure fluid applies pressure to guiding steel column 42 in first pressure liquid storehouse 211, which is more than shear pin 43
After setup pressure value, the shear pin 43 is disconnected, and at this moment, the guiding steel column 43 is displaced to the right, until in cylindrical connecting cylinder
When can not move under the limit of body 41, third pressure fluid injector tunnel 421 and second pressure liquid injector tunnel 412 are opened,
Pressure fluid in first pressure liquid storehouse 211 is injected into cavity 61 by open pressure fluid injector tunnel.
Only after being compressed axially and be radially expanded and reach capacity of annular seal assembly 5, the guiding steel column 42 by
Pressure be likely to the setup pressure value more than shear pin 43, so this ensures that the inner wall both ends only in metal inner lining pipe 6
After sealing, can just closure subsidy be carried out to metal inner lining pipe 6.
The upper annular seal assembly 51 is living including first annular piston 511, first the 512, second annular of elastic seal ring
The 513, second elastic seal ring 514 is filled in, the first annular piston 511 and the second annular piston 513 are separately positioned on the first circle
The first elastic seal ring is arranged on the direction of displacement of the first annular piston 511 in the two sides of column casing body 21 and relative displacement
512, the second elastic seal ring 514 is set on the direction of displacement of second annular piston 513.
The first annular piston 511 abuts the distal face and the first cylindrical tube of the end face of the first elastic seal ring 512
First annular piston fluid injection chamber 5111 is formed between 21 one end, second annular piston 513 abuts the second elastic seal ring
The second annular piston fluid injection chamber 5131 is formed between the distal face of 514 end face and the other end of the first cylindrical tube 21.
The 4th pressure fluid injection channel of the first annular piston fluid injection chamber 5111 and the first cylindrical tube 21 radially
212 connections；The 5th pressure fluid injection channel of the second annular piston fluid injection chamber 5131 and the first cylindrical tube 21 radially
213 connections.
The lower annular seal assembly 52 is living including third annular piston 521, third elastic seal ring 522, fourth annular
The 523, the 4th elastic seal ring 524 is filled in, the third annular piston 521 and fourth annular piston 523 are separately positioned on the second circle
Third elastic seal ring is arranged on the direction of displacement of the third annular piston 521 in the two sides of column casing body 23 and relative displacement
522, the 4th elastic seal ring 524 is set on the direction of displacement of the fourth annular piston 523.
The third annular piston 521 abuts the distal face and the second cylindrical tube of the end face of third elastic seal ring 522
Third annular piston fluid injection chamber 5211 is formed between 23, the fourth annular piston 523 abuts the end of the 4th elastic seal ring 524
Fourth annular piston fluid injection chamber 5231 is formed between the distal face in face and the second cylindrical tube 23.
The 6th pressure fluid injection channel of the third annular piston fluid injection chamber 5211 and the second cylindrical tube 23 radially
231 connections；The 7th pressure fluid injection channel of the fourth annular piston fluid injection chamber 5231 and the second cylindrical tube 23 radially
232 connections.
Pressure fluid in first pressure liquid storehouse 211 is injected into first annular by the 4th pressure fluid injection channel 212
In piston fluid injection chamber 5111, first annular piston 511 is pushed to be displaced to the right；Pressure fluid in first pressure liquid storehouse 211 is also
Be injected into the second annular piston fluid injection chamber 5131 by the 5th pressure fluid injection channel 213, push the second annular piston 513 to
Left dislocation.
Similarly, the pressure fluid in second pressure liquid storehouse 221 is injected into the by the 6th pressure fluid injection channel 231
In three annular piston fluid injection chambers 5211, third annular piston 53 is pushed to be displaced to the right；Pressure in second pressure liquid storehouse 221
Liquid also passes through the 7th pressure fluid injection channel 232 and is injected into fourth annular piston fluid injection chamber 5231, pushes fourth annular piston
523 to left dislocation.
Second elastic seal ring 514, third elastic seal ring 522 are supported with the inner wall both ends of metal inner lining pipe 6 respectively
It connects；First elastic seal ring 512, the 4th elastic seal ring 524 after being compressed axially and being radially expanded, respectively with pipeline 1
Inner wall both ends abut.
Pressure fluid in first pressure liquid storehouse 211 is injected into first annular by the 4th pressure fluid injector tunnel 212
In piston fluid injection chamber 5111, and first annular piston 511 is driven to be displaced to the right, the first annular piston 511 is to the first bullet
Property the transmitting of sealing ring 512 pressure to the right；It is logical that pressure fluid in first pressure liquid storehouse 211 also passes through the injection of the 5th pressure fluid
Road 213 is injected into the second annular piston fluid injection chamber 5131, pushes the second annular piston 513 to left dislocation, second annular
Piston 5131 transmits pressure to the left to the second elastic seal ring 513.
Similarly, the pressure fluid in second pressure liquid storehouse 221 is injected into the by the 6th pressure fluid injector tunnel 231
In three annular piston fluid injection chambers 5211, and third annular piston 521 is driven to be displaced to the right, the third annular piston 521 is right
Third elastic seal ring 522 transmits pressure to the right, and the pressure fluid in second pressure liquid storehouse 221 also passes through the 7th pressure fluid
Injection channel 232 is injected into fourth annular piston fluid injection chamber 5231, pushes fourth annular piston 523 to left dislocation, and described the
Four annular pistons 523 transmit pressure to the left to the 4th elastic seal ring 524.
In this way, first elastic seal ring 512, the second elastic seal ring 514, third elastic seal ring 522, the 4th bullet
Property sealing ring 523 be under pressure respectively after generate be compressed axially and be radially expanded；First elastic seal ring 512 and the 4th bullet
Property sealing ring 523 be under pressure, after generation is compressed axially and is radially expanded, squeezed with the inner wall both ends of pipeline 1, realize pipeline 1
Region to be composite top and the bottom high-pressure-resistant sealed, second elastic seal ring 514, third elastic seal ring 522 by
Pressure after generation is compressed axially and is radially expanded, squeezes the inner wall both ends of metal inner lining pipe 6, finally, realize pipeline 1 to
The high-pressure-resistant sealed at 6 inner wall both ends of recombination region upper and lower ends and metal inner lining pipe.
The course of work of the embodiment of the present invention is as follows:
(1) generation of driving pressure:
Uphole equipment by top connection 24 to 211 injection pressure liquid of first pressure liquid storehouse, in first pressure liquid storehouse 21
Pressure fluid second pressure liquid storehouse 221 is also injected by the first pressure liquid injector tunnel 411 of control connector 4, described
Pressure under the action of top connection 24 continues injection pressure liquid, in first pressure liquid storehouse 211 and second pressure liquid storehouse 221
Liquid generates driving pressure F；
Pressure fluid in first pressure liquid storehouse 211 is injected into first annular by the 4th pressure fluid injection channel 212
In piston fluid injection chamber 5111, first annular piston 511 is pushed to be displaced to the right；Pressure fluid in first pressure liquid storehouse 211 is also
Be injected into the second annular piston fluid injection chamber 5131 by the 5th pressure fluid injection channel 213, push the second annular piston 513 to
Left dislocation.
Similarly, the pressure fluid in second pressure liquid storehouse 221 is injected into the by the 6th pressure fluid injection channel 231
In three annular piston fluid injection chambers 5211, third annular piston 53 is pushed to be displaced to the right；Pressure in second pressure liquid storehouse 221
Liquid also passes through the 7th pressure fluid injection channel 232 and is injected into fourth annular piston fluid injection chamber 5231, pushes fourth annular piston
523 to left dislocation.
(2) start seal process:
The seal process include the leak repairing region to be blocked of pipeline 1 top and the bottom seal process and metal inner lining pipe 6 two
Hold seal process.
As shown in Fig. 2, being pressed after driving pressure of the invention generates in third pressure fluid injector tunnel 421 and second
Power liquid injector tunnel 412 is not aligned with and under the operating condition that is not switched on, the preferential automatic starting of annular seal assembly 5.
As first annular piston 511 is displaced to the right, pressure is passed into the first elastic seal ring 512, fourth annular is living
Plug 523 passes to the 4th elastic seal ring 523 to left dislocation, by pressure, and first elastic seal ring 512 and the 4th elasticity are close
The axial width of seal 523 becomes smaller, and first elastic seal ring 512 and the 4th elastic seal ring 523 are to being radially expanded, respectively
The inner wall upper and lower ends of pipeline 1 are squeezed, realize the high-pressure-resistant sealed of the region upper and lower ends to be composite of pipeline 1.
As shown in figure 3, pressure is passed to the second elastic seal ring as second annular piston 512 is to left dislocation
514, the third annular piston 521 is displaced to the right, and pressure is passed to third elastic seal ring 522；In holding for driving pressure F
Under continuous effect, the axial width of second elastic seal ring 514 and third elastic seal ring 522 becomes smaller, second elasticity
Sealing ring 514 and third elastic seal ring 522 respectively squeeze the inner wall both ends of metal inner lining pipe 6, make to being radially expanded
The inner wall both ends for obtaining metal inner lining pipe 6 generate radial plastic deformation, are expressed to the inner wall of pipeline 1, realize to 6 liang of metal inner lining pipe
Hold the high-pressure-resistant sealed of inner wall.
When first elastic seal ring 512, the second elastic seal ring 514, third elastic seal ring 522 and the 4th elasticity
When the axial crushing deformation of sealing ring 523 reaches the deflection of design requirement, namely it ensure that the sealing pressure resistance water of design requirement
It is flat.
(3) process is subsidized in the closure of metal inner lining pipe 6:
As shown in figure 4, after the completion of the high-pressure-resistant sealed of the 6 both ends inner wall of metal inner lining pipe, first pressure liquid storehouse
Pressure fluid continues to pressure to guiding steel column 42 in 211, which is more than the shearing after the setup pressure value of shear pin 43
Pin 43 disconnects, and at this moment, the guiding steel column 43 is displaced to the right, until can not move under the limit of cylindrical connector drum 41
When, third pressure fluid injector tunnel 421 is aligned and opens with second pressure liquid injector tunnel 412, is located at first pressure
Pressure fluid is injected into cavity 61 by open pressure fluid injection channel in liquid storehouse 211.
Pressure fluid in the cavity 61 uniformly applies pressure to the inner wall of metal inner lining pipe 6, generates metal inner lining pipe 6
Plastic deformation, the outer wall squeezed tight of entire metal inner lining pipe 6 are realized in the inner wall of pipeline 1 and block subsidy.
At this point, entire metal inner lining pipe 6 has all produced radial plastic deformation, it is closely combined to the inner wall of pipeline 1, it is complete
At closure subsidy process.
(5) revocation procedure of the invention:
After the metal inner lining pipe 6 is completed to block subsidy, uphole equipment stops passing through top connection 25 to first pressure
211 injection pressure liquid of liquid storehouse, releases stress, the present invention is at pressure release state；
The first annular piston 511, the second annular piston 513, third annular piston 521 and fourth annular piston are to first
Beginning position is retracted, first elastic seal ring 512, the second elastic seal ring 514, third elastic seal ring 522 and the 4th bullet
Property sealing ring 523 gradually resets, after the pressure for losing corresponding annular piston in this way, 512 He of the first elastic seal ring
The inner wall both ends of 4th elastic seal ring 524 disengaging pipeline 1 and second elastic seal ring 514 and third elastic packing
Circle 522 is detached from after the inner wall both ends of metal inner lining pipe 6, and the present invention is in reset condition, at this moment, the present invention can be recalled.
During entirely recalling, because the metal inner lining pipe 6 has occurred that plastic deformation expansion, even if
The present invention is recalled, the metal inner lining pipe 6 still keeps the inner wall for being closely compounded in pipeline 1.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of pipeline compound lining device, which is applied in pipeline, which is characterized in that including cylinder
Cylinder guides head, control connector, annular seal assembly, metal inner lining pipe into；
The cylindrical tube includes the first cylindrical tube, connecting tube, the second cylindrical tube；It uses one end of first cylindrical tube
In injection pressure liquid, the other end is connect by connecting tube with one end of the second cylindrical tube, second cylindrical tube it is another
Hold and guide into head connection；Several pressure fluids that are radially respectively arranged with of first cylindrical tube and the second cylindrical tube are infused
Enter duct；
The control connector is arranged in the central duct of cylindrical tube, for being connected to the intracorporal first pressure of the first cylindrical drum
Liquid storehouse and connecting tube and the second cylindrical drum intracorporal second pressure liquid storehouse；It is also used to by setting with cooperating on the first cylindrical tube
Pressure fluid in first pressure liquid storehouse is injected into the outside of the first cylindrical tube by the pressure fluid injector tunnel set；
The annular seal assembly includes upper annular seal assembly, lower annular seal assembly, and the upper annular seal assembly is arranged
On the first cylindrical tube, for after the driving by the pressure fluid from first pressure liquid storehouse to the region to be composite of pipeline
Upper end and the sealing of metal inner lining pipe upper end；The lower annular seal assembly is set on the second cylindrical tube, for being arrived
The region lower end and metal inner lining pipe lower end to be composite of pipeline are sealed from after the driving of the pressure fluid in second pressure liquid storehouse；
The metal inner lining pipe sleeve is located at except annular seal assembly and cylindrical tube, and the shape between the outer wall of cylindrical tube
At the cavity for accommodating pressure fluid.
2. pipeline compound lining device according to claim 1, which is characterized in that the control connector includes cylinder
Connector drum, guiding steel column, shear pin, the guiding steel column are fixed on cylindrical connector drum towards the first circle by shear pin
One end of injection pressure liquid in column casing body.
3. pipeline compound lining device according to claim 2, which is characterized in that the axial direction of the cylinder connector drum
The first pressure liquid injector tunnel in upper setting connection first pressure liquid storehouse and second pressure liquid storehouse, the cylinder connector drum
The second pressure liquid injector tunnel being connected to radially is provided with the radially corresponding position of the first cylindrical tube；The guiding steel
Being provided on column can be with second pressure liquid injector tunnel matched third pressure fluid injector tunnel.
4. pipeline compound lining device according to claim 1 to 3, which is characterized in that the upper ring packing
Component includes first annular piston, the first elastic seal ring, the second annular piston, the second elastic seal ring, described first annular
Piston and the second annular piston are separately positioned on two sides and the relative displacement of the first cylindrical tube, the first annular piston
First elastic seal ring is set on direction of displacement, the second elastic seal ring is set on the direction of displacement of second annular piston.
5. pipeline compound lining device according to claim 4, which is characterized in that the first annular piston abuts first
Form first annular piston fluid injection chamber between the distal face of the end face of elastic seal ring and one end of the first cylindrical tube, described
Second is formed between the distal face of end face and the other end of the first cylindrical tube of second ring piston the second elastic seal ring of abutting
Annular piston fluid injection chamber.
6. pipeline compound lining device according to claim 5, which is characterized in that the first annular piston fluid injection chamber with
The 4th pressure fluid injection channel connection of first cylindrical tube radially；The second annular piston fluid injection chamber and the first cylindrical drum
The 5th pressure fluid injection channel connection of body radially.
7. pipeline compound lining device according to claim 6, which is characterized in that the lower annular seal assembly includes the
Three annular pistons, third elastic seal ring, fourth annular piston, the 4th elastic seal ring, the third annular piston and the 4th
Annular piston is separately positioned on the two sides of the second cylindrical tube and relative displacement, on the direction of displacement of the third annular piston
Third elastic seal ring is set, the 4th elastic seal ring is set on the direction of displacement of the fourth annular piston.
8. pipeline compound lining device according to claim 7, which is characterized in that the third annular piston abuts third
Third annular piston fluid injection chamber, the fourth annular are formed between the distal face of the end face of elastic seal ring and the second cylindrical tube
Piston, which abuts, forms fourth annular piston fluid injection chamber between the distal face and the second cylindrical tube of the end face of the 4th elastic seal ring.
9. pipeline compound lining device according to claim 8, which is characterized in that the third annular piston fluid injection chamber with
The 6th pressure fluid injection channel connection of second cylindrical tube radially；The fourth annular piston fluid injection chamber and the second cylindrical drum
The 7th pressure fluid injection channel connection of body radially.
10. pipeline compound lining device according to claim 9, which is characterized in that second elastic seal ring, third
Elastic seal ring is abutted with the inner wall both ends of metal inner lining pipe respectively；First elastic seal ring, the 4th elastic seal ring exist
After being compressed axially and being radially expanded, abutted respectively with the inner wall both ends of pipeline.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740052.5A CN110485960A (en) | 2019-08-12 | 2019-08-12 | Pipeline compound lining device |
| PCT/CN2019/100319 WO2021026749A1 (en) | 2019-08-12 | 2019-08-13 | Compound lining apparatus for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740052.5A CN110485960A (en) | 2019-08-12 | 2019-08-12 | Pipeline compound lining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110485960A true CN110485960A (en) | 2019-11-22 |
Family
ID=68550654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910740052.5A Pending CN110485960A (en) | 2019-08-12 | 2019-08-12 | Pipeline compound lining device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110485960A (en) |
| WO (1) | WO2021026749A1 (en) |
Cited By (1)
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Also Published As
| Publication number | Publication date |
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| WO2021026749A1 (en) | 2021-02-18 |
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