CN106640036A - Testing system - Google Patents
Testing system Download PDFInfo
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- CN106640036A CN106640036A CN201510708777.8A CN201510708777A CN106640036A CN 106640036 A CN106640036 A CN 106640036A CN 201510708777 A CN201510708777 A CN 201510708777A CN 106640036 A CN106640036 A CN 106640036A
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- connecting portion
- central tube
- packer
- hole
- hole section
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- 238000012360 testing method Methods 0.000 title abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 210000000988 bone and bone Anatomy 0.000 claims description 30
- 238000012856 packing Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The invention provides a testing system. The testing system comprises a packer and a testing device arranged at the periphery of the packer in a sleeving mode; the packer comprises a central pipe, and an internal through hole is formed in the central pipe; the packer further comprises a liquid passing channel which is formed in the pipe wall of the central pipe and communicates with the internal through hole. According to the technical scheme, the problem that in the prior art, the actual working condition of the packer under a well is difficult to simulate can be solved.
Description
Technical field
The present invention relates to oil extraction in oil field production field, in particular to a kind of pilot system.
Background technology
Staged fracturing of horizontal well packer completion technique is a new completion technique of Oil-Gas Well Engineering technical field in recent years,
It is mainly used in the fracturing yield increasing transformation of the directional well of unconventional petroleum resources exploitation, horizontal well.When using the technology, can
According to stratum geological state and the needs of reservoir exploitation, horizontal well is separated into some sections using packer, realizes stratified operation,
Staged fracturing is targetedly carried out to payzone, expands the drainage area of layer of oil gas production, the rate of oil and gas recovery is improved, with obvious skill
Art advantage.
In staged fracturing of horizontal well packer completion technique, packer is the key problem in technology device of oil-gas Layer staged fracturing transformation,
Can it seal the service behaviours such as annular space and can directly affect the enforcement of staged fracturing technology.
In prior art, hydraulic pressure setting force is simulated typically by pressure loading, packing element is carried out after compressing in experimental rig close
Testing sealing.It is this to set and pressure-bearing mode and real working condition have certain difference, it is impossible to simulate the actual condition of packer completely.
The content of the invention
Present invention is primarily targeted at a kind of pilot system is provided, to solve the simulation packer that is difficult to of the prior art in down-hole
Actual condition problem.
To achieve these goals, the invention provides a kind of pilot system, including packer and it is set in the examination of packer periphery
Experiment device, packer includes central tube, and central tube has interior bone, and packer also includes being opened on the tube wall of central tube
What is connected with interior bone crosses liquid passage.
Further, experimental rig includes：Thimble assembly, packer is arranged on the inside of thimble assembly；First end cap, with
The first end of heart pipe is tightly connected, and the first end cap has connect with interior bone first to suppress through hole；Second end cap, with center
Second end of pipe is tightly connected, and the second end cap has connect with interior bone second to suppress through hole；Wherein, thimble assembly is leaned on
One end of nearly first end cap is connected and is formed first annular region with basepipe seal, crosses liquid passage and first annular regional connectivity,
Thimble assembly has suppresses through hole with the 3rd of first annular regional connectivity the.
Further, thimble assembly includes：Analog casing；First connecting portion, is sequentially communicated with the axial direction along central tube
And the hole section of first connecting portion first, the hole section of first connecting portion second and the hole section of first connecting portion the 3rd that aperture is gradually reduced, first
The hole section of first connecting portion first of connecting portion is tightly connected with the first end of analog casing, the first connecting portion the 3rd of first connecting portion
Hole section coordinates with the first end sealing of central tube, and between the hole section of first connecting portion second and the outer wall of central tube of first connecting portion
Surround first annular region.
Further, the 3rd suppress through hole and be opened on the hole wall of the corresponding first connecting portion of the hole section of first connecting portion second.
Further, thimble assembly away from the first end cap one end and central tube between form the second annular region, thimble assembly
Through hole is suppressed with the 4th connected with the second annular region.
Further, thimble assembly also includes the second connecting portion being tightly connected with packer and analog casing respectively, the second connection
Portion there is the axial direction along central tube to be sequentially communicated and the hole section of second connecting portion first that aperture gradually increases, second connecting portion the
Two hole sections and the hole section of second connecting portion the 3rd, the hole section of second connecting portion first is tightly connected with the second end of central tube, the second connection
The second annular region, the hole section of second connecting portion the 3rd and the second of analog casing are surrounded between the hole section of portion second and the outer wall of central tube
End is tightly connected.
Further, the first end cap is pivotally connected with central tube, so that the first end cap is moved on the axis direction of central tube, from
And controlled the break-make of liquid passage.
Further, one end near the first end cap of central tube has screwed hole, and the first end cap has the spiral shell coordinated with screwed hole
Line section.
Further, central tube includes first pipe and the second pipe being sequentially connected with along the axial direction of central tube, first pipe and second pipe
It is internally formed interior bone.
Further, packer also includes packing element, and packing element is set in the periphery of central tube.
Further, the junction of the hole section of first connecting portion second of first connecting portion and the hole section of first connecting portion the 3rd forms step,
Packer also includes support member, and support member is set in the periphery of central tube, and one end of support member abuts with packing element, support member
The other end is connected at step.
Using technical scheme, packer also includes the liquid excessively connected with interior bone being opened on the tube wall of central tube
Passage, in above-mentioned setting, above-mentioned packer is arranged on behind experimental rig inside, and the liquid with certain pressure can pass through
Cross liquid passage and enter interior bone such that it is able to simulate the pressure acted on during actual field staged fracturing on packer, with
Prior art is compared, the pressure-bearing mode of the packer in this pilot system closer to actual condition, therefore, packer is made
The result of experiments of sealing performance is more accurate.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the broken section structural representation of the embodiment of pilot system of the invention.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
1st, packer；10th, central tube；10a, interior bone；10b, excessively liquid passage；101st, first pipe；102nd, second pipe；
11st, packing element；12nd, latch assembly；121st, lock ring；122nd, cutting ferrule；13rd, support member；14th, cavity；15th, first seal；
16th, second seal；17th, the 3rd seal；2nd, experimental rig；20th, thimble assembly；21st, the first end cap；21a, first
Suppress through hole；22nd, the second end cap；22a, second suppress through hole；200th, analog casing；201st, first connecting portion；201a、
3rd suppresses through hole；202nd, second connecting portion；202a, the 4th suppress through hole；30th, first annular region；40th, second is annular
Region.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless otherwise finger
Bright, all technologies used herein and scientific terminology have and to be generally understood that with the application person of an ordinary skill in the technical field
Identical meanings.
In the present invention, in the case where contrary explanation is not made, the noun of locality for using such as " inside and outside " is referred to relative to each part
The profile of itself it is inside and outside, but the above-mentioned noun of locality is not limited to the present invention.
As shown in figure 1, a kind of the invention provides pilot system.Pilot system includes packer 1 and is set in outside packer 1
The experimental rig 2 in week.Packer 1 includes central tube 10, and central tube 10 has interior bone 10a, and packer 1 also includes opening
The liquid passage 10b excessively connected with interior bone 10a being located on the tube wall of central tube 10.
In above-mentioned setting, above-mentioned packer 1 is arranged on behind the inside of experimental rig 2, the liquid with certain pressure can lead to
Liquid passage 10b enter interior bone 10a such that it is able to simulate and act on during actual field staged fracturing on packer 1
Pressure, compared with prior art, the pressure-bearing mode of the packer 1 in this pilot system closer to actual condition, therefore, it is right
The result of the experiments of sealing performance that packer 1 is made is more accurate.
In the embodiment of the present invention, experimental rig 2 includes thimble assembly 20, the first end cap 21 and the second end cap 22.Wherein, seal
The inside of thimble assembly 20 is arranged on every device 1；First end cap 21 is tightly connected with the first end of central tube 10, the first end cap 21
Through hole 21a is suppressed with first connected with interior bone 10a；Second end cap 22 is tightly connected with the second end of central tube 10,
Second end cap 22 has connect with interior bone 10a second to suppress through hole 22a.
When being tested using the packer 1 of the present invention, because first annular region 30 and interior bone 10a passed through liquid passage
10b is connected, and first annular region 30 can belong to a pressure system together with interior bone 10a of packer 1, closer to scene
The actual condition of packer 1 during staged fracturing, therefore, the result of the experiments of sealing performance made to packer 1 is more accurate.
Wherein, one end near the first end cap 21 of thimble assembly 20 is tightly connected and is formed first annular region with central tube 10
30, to cross liquid passage 10b and connect with first annular region 30, thimble assembly 20 has the 3rd connected with first annular region 30
Suppress through hole 201a.
Specifically, the first end cap 21 is the column with hollow bulb.The hollow bulb is that above-mentioned first suppresses through hole 21a.Should
First suppresses through hole 21a has first the first hole section of end cap and first the second hole of end cap being connected along the axial direction of central tube 10
Section.Aperture of the aperture of first the first hole section of end cap more than first the second hole section of end cap.
By suppressing external connection power source at through hole 21a first, hydraulic fluid can be provided for the inside of packer 1, to carry out
Leakage test.
Similarly, the second end cap 22 is also the column with hollow bulb.The concrete structure of the second end cap 22 and the first end cap 21
Structure it is identical, here is omitted.
In the embodiment of the present invention, specifically, as shown in figure 1, thimble assembly 20 includes analog casing 200 and first connecting portion 201.
Wherein, the first connection that there is first connecting portion 201 axial direction along central tube 10 to be sequentially communicated and aperture is gradually reduced
The hole section of portion first, the hole section of first connecting portion second and the hole section of first connecting portion the 3rd.The first connecting portion of first connecting portion 201
One hole section is tightly connected with the first end of analog casing 200, the hole section of first connecting portion the 3rd of first connecting portion 201 and central tube
10 first end sealing coordinates, and surrounds between the hole section of first connecting portion second of first connecting portion 201 and the outer wall of central tube 10
First annular region 30.
Preferably, the 3rd suppress through hole 201a and be opened on the hole wall of the corresponding first connecting portion 201 of the hole section of first connecting portion second.
As shown in figure 1, in the embodiment of the present invention, specifically, one end and center away from the first end cap 21 of thimble assembly 20
The second annular region 40 is formed between pipe 10, thimble assembly 20 has the connect with the second annular region 40 the 4th to suppress through hole
202a。
Through hole 202a is suppressed by arranging the 4th, two-way bulge test can be carried out to packer 1, and preferably simulated field is applied
Work operating mode, reduces construction risk.
As shown in figure 1, thimble assembly 20 also includes the second connecting portion being tightly connected with packer 1 and analog casing 200 respectively
202.Second connecting portion 202 there is the axial direction along central tube 10 to be sequentially communicated and second connecting portion that aperture gradually increases the
One hole section, the hole section of second connecting portion second and the hole section of second connecting portion the 3rd, the of the hole section of second connecting portion first and central tube 10
Two ends are tightly connected, and the second annular region 40, the second connection are surrounded between the outer wall of the hole section of second connecting portion second and central tube 10
The hole section of portion the 3rd is tightly connected with the second end of analog casing 200.
As shown in figure 1, in the embodiment of the present invention, pilot system also includes the 3rd seal 17.The periphery of first end cap 21 is provided with
Three grooves, the 3rd seal 17 is arranged in the 3rd groove to seal the gap between the first end cap 21 and central tube 10.
As shown in figure 1, in the embodiment of the present invention, in order to control the break-make of liquid passage 10b, the first end cap 21 and central tube 10
It is pivotally connected so that the first end cap 21 is moved on the axis direction of central tube 10.
Specifically, one end near the first end cap 21 of central tube 10 has screwed hole, and the first end cap 21 has matches somebody with somebody with screwed hole
The thread segment of conjunction.
First end cap 21 at least has first position and the second place relative to central tube 10.It is made by rotating the first end cap 21
After being directed away from the motion of the direction of central tube 10, the first end cap 21 is located at first position, now crosses liquid passage 10b and central tube
10 interior bone 10a connection；Rotating the first end cap 21 makes after its direction motion towards close central tube 10, the first end cap
21 are located at the second place, now, cross liquid passage 10b and do not connect with interior bone 10a of central tube 10.
As shown in figure 1, in the embodiment of the present invention, packer 1 also includes packing element 11, latch assembly 12 and support member 13.Packing element
11 peripheries for being set in central tube 10.
In the embodiment of the present invention, it is preferable that in order to test various sizes of packing element 11, central tube 10 is included along central tube
Being internally formed for first pipe 101 and second pipe 102 that 10 axial direction is sequentially connected with, first pipe 101 and second pipe 102 is internal logical
Hole 10a.
The hole section of first connecting portion second of first connecting portion 201 and the junction of the hole section of first connecting portion the 3rd form step.Support
Part 13 is set in the periphery of second pipe 102, and one end of support member 13 abuts with packing element 11, and the other end of support member 13 is abutted
At step.
As shown in figure 1, latch assembly 12 is set in the periphery of first pipe 101, in the presence of external force, latch assembly 12 is given
Packing element 11 applies axial force so that the gap between the seal test device 2 of packing element 11 and central tube 10.
Specifically, latch assembly 12 includes lock ring 121 and cutting ferrule 122.Wherein, lock ring 121 is set in the second of central tube 10
The periphery of pipe；Cutting ferrule 122 is set in the periphery of lock ring 121, and cutting ferrule 122 is used to apply axial force to packing element 11.
Cutting ferrule 122 has stepped hole.Stepped hole has the hole section of cutting ferrule first and the hole section of cutting ferrule second.The hole section of cutting ferrule first and cutting ferrule
The junction of the second hole section to form and form chamber between the end face that the side towards packing element 11 of step, step and first pipe 101 is located
Body 14, first pipe 101 has the first radial direction through hole for being respectively communicated with cavity 14 and interior bone 10a.
When having into the hydraulic fluid of interior bone 10a Jing after the first radial direction through hole flows into cavity 14, under the active force of hydraulic pressure,
The lateral movement for promoting cutting ferrule 122 to be located towards close packing element 11, so that radial direction tensioner of the packing element 11 along central tube 10, with
Realize setting for packer 1.
The packer 1 set principle and locking principle it is identical with existing packer, here is omitted.
In addition, as shown in figure 1, in embodiments of the invention, packer 1 also includes first seal 15 and second seal 16.
Wherein, first seal 15 is located at and is opened in the first groove on the outer wall of first pipe 101.Second seal 16 is located at and opens
It is located in the second groove on the inwall of cutting ferrule 122.
Preferably, first seal 15 and second seal 16 are O-shaped rubber ring.
Central tube 10 has the second radial direction through hole, and support member 13 has the 3rd radial direction through hole, and the second radial direction through hole and the 3rd is radially
Through hole formed liquid passage 10b.
Below, specifically the assembling process of the pilot system is specifically described：
(1) packer 1 is assembled.First packing element 11 and support member 13 are arranged in second pipe 102, packer is formed
Lower part；Then lock ring 121 and cutting ferrule 122 are arranged in first pipe 101, and load onto a number of shear pin, formed
The upper part of packer.Then first pipe 101 and second pipe 102 are threadedly coupled, can not with form complete test
Packer is taken, its locking and sealing mechanism are identical with the packer of prior art.
(2) above-mentioned packer 1 and experimental rig 2 are fitted together.The second connecting portion 202 of experimental rig 2 is stuck in
The periphery of first pipe 101, and by one end away from second pipe 102 of the first pipe 101 of above-mentioned packer 1 and the second end cap 22
Threaded connection；Then analog casing 200 is tightly connected with second connecting portion 202；Then first connecting portion 201 covers with simulation
Pipe 200 is tightly connected, and is finally tightly connected the first end cap 21 and second pipe 102, that is, complete the assembling of whole pilot system.
Therefore, the packer 1 and the easy accessibility of experimental rig 2 of pilot system of the invention, and can reuse, drop
Low experimentation cost；On the other hand, because packer 1 is provided with the inside that can connect first annular region 30 and packer 1
Through hole 10a's crosses liquid passage 10b, therefore, it is possible to the hole condition of preferably simulated field fracturing process.
Below, the whole process of the test of pilot system is described with reference to accompanying drawing 1：
1st step, the leakage test of experimental rig.First suppress through hole 21a by the first of the first end cap 21 to be blocked with special plug,
Then suppressing through hole 22a injection hydraulic fluids from the second of the second end cap 22 carries out suppressing and tests envelope, then completes to be located at after voltage stabilizing is qualified
The leakage test of the seal on packer 1.Note, in the process of the test, pressure testing maximum pressure does not exceed packer 1
Startup pressure.Then～5 circles are enclosed into the shackle 4 of the first end cap 21, makes the 3rd seal 17 being arranged on the first end cap 21
Position second pipe 102 cross liquid passage 10b the right, allow packer 1 interior bone 10a and first annular region 30
Connection, while suppressing the 3rd of through hole 202a and first connecting portion 201 by the 4th of second connecting portion 202 the suppresses through hole 201a
Block, then through hole 22a is suppressed from the second of the second end cap 22 and suppress examination sealing, seal pressure cannot be less than the ring of packer 1 first
Shape region 30 and second annular region 40 tests seal pressure.After examination sealing is qualified, then the leakage test of experimental rig is completed, let out
Pressure prepares next-step operation.
2nd step, packer sets.First the first end cap 21 is tightened in second pipe 102, the position of the 3rd seal 17 is made
Put on the left side for crossing liquid passage 10b being opened on the hole wall of second pipe 102, i.e., now cross liquid passage 10b and interior bone 10a
Do not connect；Then suppress through hole 22a from the second of the second end cap 22 is carried out suppressing setting by the requirement that sets of packer 1.
Envelope is tested in 3rd step, the first annular region 30 of packer.According to actual condition, the first annular region 30 before this of packer 1
Pressure-bearing, and the pressure of interior bone 10a of central tube 10 is equal with first annular region 30.First by the shackle 4 of the first end cap 21
Circle～5 is enclosed, and makes the position of the 3rd seal 17 being arranged on the first end cap 21 on the right side for crossing liquid passage 10b of second pipe 102
Side, now interior bone 10a passed through liquid passage 10b and connected with first annular region 30, while will closure in second connecting portion
202 the 4th plug suppressed at through hole 202a is laid down, and then suppresses through hole 22a by packer 1 from the second of the second end cap 22
The pressure-bearing rank of design is suppressed and tests envelope.After voltage stabilizing is qualified, pressure release prepares next-step operation.
4th step, the second annular region 40 of packer tests envelope.According to actual condition, the second annular region 40 of packer is held
During pressure, the central tube of packer is without standby pressure.First the 3rd plug suppressed at through hole 201a by closure in first connecting portion 201 is unloaded
Fall, closure is arranged on the 4th of second connecting portion 202 and suppresses through hole 202a, then suppresses from the 3rd of first connecting portion 201 logical
Hole 201a suppresses the second annular region 40 to packer and carries out testing envelope.After voltage stabilizing is qualified, then completes hydraulic setting, packer and exist
Bulk testing in Special testing device.
5th step, the deblocking of packer and device are dismantled.First analog casing 200 is fixed, will with pipe wrench or other detaching equipments
First connecting portion 201 is laid down, and support member 13 then can move right, that is, complete the deblocking of packer；Then pacify by experimental rig
The reverse-order of dress is dismantled one by one to each part.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：Packer also includes
The liquid passage excessively connected with interior bone being opened on the tube wall of central tube, in above-mentioned setting, above-mentioned packer is arranged on
Behind experimental rig inside, the liquid with certain pressure can pass through liquid passage and enter interior bone such that it is able to which simulation is actual
The pressure on packer is acted on during live staged fracturing, compared with prior art, packer in this pilot system holds
Pressure mode closer to actual condition, therefore, the result of the experiments of sealing performance made to packer is more accurate.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art
For, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of pilot system, including packer (1) and the experimental rig (2) of the packer (1) periphery is set in, it is described
Packer (1) includes central tube (10), and the central tube (10) is with interior bone (10a), it is characterised in that institute
Stating packer (1) also includes being opened in connecting with the interior bone (10a) on the tube wall of the central tube (10)
Cross liquid passage (10b).
2. pilot system according to claim 1, it is characterised in that the experimental rig (2) includes：
Thimble assembly (20), the packer (1) is arranged on the inside of described sleeve pipe component (20)；
First end cap (21), is tightly connected with the first end of the central tube (10), the first end cap (21) tool
Have connect with the interior bone (10a) first to suppress through hole (21a)；
Second end cap (22), is tightly connected with the second end of the central tube (10), the second end cap (22) tool
Have connect with the interior bone (10a) second to suppress through hole (22a)；
Wherein, one end and the central tube (10) of close described first end cap (21) of described sleeve pipe component (20)
First annular region (30) is tightly connected and is formed, it is described to cross liquid passage (10b) and the first annular region (30)
Connection, described sleeve pipe component (20) suppresses through hole (201a) with the 3rd connected with the first annular region (30).
3. pilot system according to claim 2, it is characterised in that described sleeve pipe component (20) includes：
Analog casing (200)；
First connecting portion (201), is sequentially communicated with the axial direction along the central tube (10) and aperture is gradually reduced
The hole section of first connecting portion first, the hole section of first connecting portion second and the hole section of first connecting portion the 3rd, the first connecting portion
(201) the hole section of the first connecting portion first is tightly connected with the first end of the analog casing (200), and described
The hole section of the first connecting portion the 3rd of one connecting portion (201) coordinates with the first end sealing of the central tube (10), and
Surround between the hole section of the first connecting portion second of first connecting portion (201) and the outer wall of the central tube (10)
The first annular region (30).
4. pilot system according to claim 3, it is characterised in that the described 3rd suppresses through hole (201a) is opened in described
On the hole wall of the corresponding first connecting portion (201) of one the second hole section of connecting portion.
5. pilot system according to claim 3, it is characterised in that described sleeve pipe component (20) away from the first end
The second annular region (40), described sleeve pipe component (20) are formed between one end of lid (21) and the central tube (10)
Through hole (202a) is suppressed with the 4th connected with second annular region (40).
6. pilot system according to claim 5, it is characterised in that described sleeve pipe component (20) also include respectively with it is described
The second connecting portion (202) that packer (1) and the analog casing (200) are tightly connected, the second connecting portion (202)
Be sequentially communicated with the axial direction along the central tube (10) and the hole section of second connecting portion first that aperture gradually increases,
The hole section of second connecting portion second and the hole section of second connecting portion the 3rd, the hole section of the second connecting portion first and the central tube
(10) the second end is tightly connected, and encloses between the hole section of the second connecting portion second and the outer wall of the central tube (10)
Into second annular region (40), the second end of the hole section of the second connecting portion the 3rd and the analog casing (200)
It is tightly connected.
7. pilot system according to claim 2, it is characterised in that first end cap (21) and the central tube (10)
It is pivotally connected, so that first end cap (21) is moved on the axis direction of the central tube (10), so as to control
The break-make for crossing liquid passage (10b).
8. pilot system according to claim 7, it is characterised in that close described first end cap of the central tube (10)
(21) one end has screwed hole, and first end cap (21) is with the thread segment coordinated with the screwed hole.
9. pilot system according to any one of claim 1 to 8, it is characterised in that the central tube (10) includes edge
First pipe (101) and second pipe (102) that the axial direction of the central tube (10) is sequentially connected with, the first pipe (101)
The interior bone (10a) is internally formed with the second pipe (102).
10. pilot system according to claim 3, it is characterised in that the packer (1) also includes packing element (11), described
Packing element (11) is set in the periphery of the central tube (10).
11. pilot systems according to claim 10, it is characterised in that described the first of the first connecting portion (201) connects
The junction of the hole section of socket part second and the hole section of the first connecting portion the 3rd forms step, and the packer (1) also includes propping up
Support member (13), the support member (13) is set in the periphery of the central tube (10), and the support member (13)
One end abuts with the packing element (11), and the other end of the support member (13) is connected at the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708777.8A CN106640036A (en) | 2015-10-27 | 2015-10-27 | Testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708777.8A CN106640036A (en) | 2015-10-27 | 2015-10-27 | Testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640036A true CN106640036A (en) | 2017-05-10 |
Family
ID=58816022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708777.8A Pending CN106640036A (en) | 2015-10-27 | 2015-10-27 | Testing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106640036A (en) |
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|---|---|---|---|---|
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| US20130168087A1 (en) * | 2010-03-25 | 2013-07-04 | M-I Drilling Fluids U.K. Limited | Downhole tool and method |
| CN203191180U (en) * | 2013-04-07 | 2013-09-11 | 中国海洋石油总公司 | Test device for rubber barrel of packer |
| CN103868661A (en) * | 2012-12-17 | 2014-06-18 | 中国石油化工股份有限公司 | Open hole packer tester and using method thereof |
| CN203672563U (en) * | 2013-12-18 | 2014-06-25 | 中国石油化工股份有限公司 | Expanding packer rubber cylinder high temperature performance tester |
| CN205138738U (en) * | 2015-10-27 | 2016-04-06 | 中国石油天然气股份有限公司 | Test system |
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| US20130168087A1 (en) * | 2010-03-25 | 2013-07-04 | M-I Drilling Fluids U.K. Limited | Downhole tool and method |
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| CN203191180U (en) * | 2013-04-07 | 2013-09-11 | 中国海洋石油总公司 | Test device for rubber barrel of packer |
| CN203672563U (en) * | 2013-12-18 | 2014-06-25 | 中国石油化工股份有限公司 | Expanding packer rubber cylinder high temperature performance tester |
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Application publication date: 20170510 |