CN205138738U - Test system - Google Patents
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- CN205138738U CN205138738U CN201520840916.8U CN201520840916U CN205138738U CN 205138738 U CN205138738 U CN 205138738U CN 201520840916 U CN201520840916 U CN 201520840916U CN 205138738 U CN205138738 U CN 205138738U
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 210000000988 bone and bone Anatomy 0.000 claims description 32
- 238000012856 packing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 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
- 230000008901 benefit Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a test system. The testing system comprises a packer and a testing device arranged on the periphery of the packer in a sleeved mode, the packer comprises a central pipe, the central pipe is provided with an internal through hole, and the packer further comprises a liquid passing channel which is arranged on the pipe wall of the central pipe and communicated with the internal through hole. The technical scheme of the utility model can solve the problem that is difficult to simulate the operating condition of packer in the pit among the prior art.
Description
Technical field
The utility model 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 the novel completion technique of of Oil-Gas Well Engineering technical field in recent years, and it is mainly used in the orientation well of unconventional petroleum resources exploitation, the fracturing yield increasing transformation of horizontal well.When using this technology, can, according to the needs of stratum geological state and reservoir exploitation, adopt packer that horizontal well is separated into some sections, realize stratified operation, targetedly staged fracturing is carried out to payzone, expand the drainage area of layer of oil gas production, improve the rate of oil and gas recovery, there is obvious technical advantage.
In staged fracturing of horizontal well packer completion technique, packer is the key problem in technology device of hydrocarbon zone staged fracturing transformation, and can it seal the enforcement that the serviceabilitys such as annular space directly can affect staged fracturing technology.
In prior art, normally by pressure load simulation hydraulic pressure setting force, after packing element is compressed in test unit, carry out leakage test.Thisly to set and pressure-bearing mode and real working condition have certain difference, the actual condition of packer cannot be simulated completely.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of pilot system, simulates the problem of packer at the actual condition of down-hole to solve of the prior art being difficult to.
To achieve these goals, the utility model provides a kind of pilot system, comprise packer and the test unit being set in packer periphery, packer comprises pipe core, pipe core has interior bone, and packer also comprises the liquid passage be excessively communicated with interior bone be opened on the tube wall of pipe core.
Further, test unit comprises: thimble assembly, and packer is arranged on the inside of thimble assembly; First end cap, is tightly connected with the first end of pipe core, the first end cap have be communicated with interior bone first suppress through hole; Second end cap, is tightly connected with the second end of pipe core, the second end cap have be communicated with interior bone second suppress through hole; Wherein, one end near the first end cap of thimble assembly is connected with basepipe seal and forms the first annular region, and cross liquid passage and the first annular regional connectivity, thimble assembly has the 3rd of the annular regional connectivity with first and suppresses through hole.
Further, thimble assembly comprises: analog casing; First connecting portion, the axial direction with centrally pipe is communicated with and aperture the first connecting portion first hole section, the first connecting portion second hole section and the first connecting portion the 3rd hole section that reduce gradually successively, first connecting portion first hole section of the first connecting portion and the first end of analog casing are tightly connected, first connecting portion the 3rd hole section of the first connecting portion and the first end of pipe core are sealed and matched, and surround the first annular region between the first connecting portion second hole section of the first connecting portion and the outer wall of pipe core.
Further, the 3rd suppress through hole and be opened on the hole wall of the first connecting portion of the first connecting portion second hole section correspondence.
Further, between one end away from the first end cap of thimble assembly and pipe core, form the second annular region, thimble assembly have be communicated with the second annular region the 4th suppress through hole.
Further, thimble assembly also comprises the second connecting portion be tightly connected with packer and analog casing respectively, the axial direction that second connecting portion has a centrally pipe is communicated with and aperture the second connecting portion first hole section, the second connecting portion second hole section and the second connecting portion the 3rd hole section that increase gradually successively, second end of the second connecting portion first hole section and pipe core is tightly connected, surround the second annular region between second connecting portion second hole section and the outer wall of pipe core, the second end of the second connecting portion the 3rd hole section and analog casing is tightly connected.
Further, the first end cap is connected with pipe core pivotable, to make the first end cap move on the axis direction of pipe core, thus controls the break-make of liquid passage.
Further, one end near the first end cap of pipe core has threaded hole, and the first end cap has the thread segment coordinated with threaded hole.
Further, the first pipe that the axis that pipe core comprises centrally pipe connects in turn and the second pipe, the inside of the first pipe and the second pipe forms interior bone.
Further, packer also comprises packing element, and packing element is set in the periphery of pipe core.
Further, first connecting portion second hole section of the first connecting portion and the junction of the first connecting portion the 3rd hole section form step, and packer also comprises support member, and support member is set in the periphery of pipe core, and one end of support member abuts with packing element, the other end of support member is connected to step place.
Application the technical solution of the utility model, packer also comprises the liquid passage be excessively communicated with interior bone be opened on the tube wall of pipe core, above-mentionedly to arrange, after above-mentioned packer is arranged on test unit inside, the liquid with certain pressure can pass through liquid passage and enter interior bone, thus the pressure acted on packer can be simulated in actual field staged fracturing process, compared with prior art, the pressure-bearing mode of the packer in this pilot system is closer to actual condition, therefore, more accurate to the result of the experiments of sealing performance that packer is done.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the broken section structural representation of the embodiment according to pilot system of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, packer; 10, pipe core; 10a, interior bone; 10b, excessively liquid passage; 101, the first pipe; 102, the second pipe; 11, packing element; 12, latch assembly; 121, lock ring; 122, cutting ferrule; 13, support member; 14, cavity; 15, the first seal; 16, the second seal; 17, the 3rd seal; 2, test unit; 20, thimble assembly; 21, the first end cap; 21a, first suppresses through hole; 22, the second end cap; 22a, second suppresses through hole; 200, analog casing; 201, the first connecting portion; 201a, the 3rd suppresses through hole; 202, the second connecting portion; 202a, the 4th suppresses through hole; 30, the first annular region; 40, the second annular region.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
It is noted that following detailed description is all exemplary, be intended to provide further instruction to the application.Unless otherwise, all technology used herein and scientific terminology have the identical meanings usually understood with the application person of an ordinary skill in the technical field.
In the utility model, when not doing contrary explanation, the noun of locality of use such as " inside and outside " refers to profile inside and outside relative to each parts itself, but the above-mentioned noun of locality is not limited to the utility model.
As shown in Figure 1, the utility model provides a kind of pilot system.Pilot system comprises packer 1 and is set in the test unit 2 of packer 1 periphery.Packer 1 comprises pipe core 10, and pipe core 10 has interior bone 10a, packer 1 also comprise be opened in pipe core 10 tube wall on be communicated with interior bone 10a cross liquid path 10 b.
Above-mentionedly to arrange, after above-mentioned packer 1 is arranged on test unit 2 inside, the liquid with certain pressure can pass through liquid path 10 b and enter interior bone 10a, thus the pressure acted on packer 1 can be simulated in actual field staged fracturing process, compared with prior art, the pressure-bearing mode of the packer 1 in this pilot system is closer to actual condition, therefore, more accurate to the result of the experiments of sealing performance that packer 1 is done.
In the utility model embodiment, test unit 2 comprises thimble assembly 20, first end cap 21 and the second end cap 22.Wherein, packer 1 is arranged on the inside of thimble assembly 20; First end cap 21 is tightly connected with the first end of pipe core 10, the first end cap 21 have be communicated with interior bone 10a first suppress through hole 21a; Second end cap 22 is tightly connected with the second end of pipe core 10, the second end cap 22 have be communicated with interior bone 10a second suppress through hole 22a.
When utilizing packer 1 of the present utility model to test, be communicated with because the first annular region 30 and interior bone 10a pass through liquid path 10 b, first annular region 30 can belong to a pressure system together with the interior bone 10a of packer 1, closer to the actual condition of packer 1 in on-the-spot staged fracturing process, therefore, more accurate to the result of the experiments of sealing performance that packer 1 is done.
Wherein, one end near the first end cap 21 and the pipe core 10 of thimble assembly 20 are tightly connected and form the first annular region 30, cross liquid path 10 b to be communicated with the first annular region 30, thimble assembly 20 have be communicated with the first annular region 30 the 3rd suppress through hole 201a.
Particularly, the first end cap 21 is for having the column of hollow bulb.This hollow bulb is above-mentioned first suppress through hole 21a.This first suppresses the first end cap first hole section and the first end cap second hole section that axial direction that through hole 21a has centrally pipe 10 is connected.The aperture of the first end cap first hole section is greater than the aperture of the first end cap second hole section.
By suppressing external connection power source, through hole 21a place 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 for having the column of hollow bulb.The concrete structure of the second end cap 22 is identical with the structure of the first end cap 21, repeats no more herein.
In the utility model embodiment, particularly, as shown in Figure 1, thimble assembly 20 comprises analog casing 200 and the first connecting portion 201.
Wherein, the axial direction that the first connecting portion 201 has a centrally pipe 10 is communicated with and aperture the first connecting portion first hole section, the first connecting portion second hole section and the first connecting portion the 3rd hole section that reduce gradually successively.First connecting portion first hole section of the first connecting portion 201 and the first end of analog casing 200 are tightly connected, first connecting portion the 3rd hole section of the first connecting portion 201 and the first end of pipe core 10 are sealed and matched, and surround the first annular region 30 between the first connecting portion second hole section of the first connecting portion 201 and the outer wall of pipe core 10.
Preferably, the 3rd suppress through hole 201a and be opened on the hole wall of the first connecting portion 201 of the first connecting portion second hole section correspondence.
As shown in Figure 1, in the utility model embodiment, particularly, between one end away from the first end cap 21 of thimble assembly 20 and pipe core 10, form the second annular region 40, thimble assembly 20 have be communicated with the second annular region 40 the 4th suppress through hole 202a.
Suppressing through hole 202a by arranging the 4th, two-way bulge test can be carried out to packer 1, and better simulated field construction operating mode, reduce construction risk.
As shown in Figure 1, thimble assembly 20 also comprises the second connecting portion 202 be tightly connected with packer 1 and analog casing 200 respectively.The axial direction that second connecting portion 202 has a centrally pipe 10 is communicated with and aperture the second connecting portion first hole section, the second connecting portion second hole section and the second connecting portion the 3rd hole section that increase gradually successively, second end of the second connecting portion first hole section and pipe core 10 is tightly connected, the second end surrounding the second annular region 40, second connecting portion the 3rd hole section and analog casing 200 between second connecting portion second hole section and the outer wall of pipe core 10 is tightly connected.
As shown in Figure 1, in the utility model embodiment, pilot system also comprises the 3rd seal 17.First end cap 21 periphery is provided with the 3rd groove, and the 3rd seal 17 is arranged in the 3rd groove to seal the gap between the first end cap 21 and pipe core 10.
As shown in Figure 1, in the utility model embodiment, in order to control the break-make of liquid path 10 b, the first end cap 21 was connected with pipe core 10 pivotable the first end cap 21 is moved on the axis direction of pipe core 10.
Particularly, one end near the first end cap 21 of pipe core 10 has threaded hole, and the first end cap 21 has the thread segment coordinated with threaded hole.
First end cap 21 at least has primary importance and the second place relative to pipe core 10.Make it towards away from after the direction motion of pipe core 10 by rotating the first end cap 21, the first end cap 21 is positioned at primary importance, now crosses liquid path 10 b and is communicated with the interior bone 10a of pipe core 10; Rotating the first end cap 21 makes it towards after the motion of the direction of pipe core 10, and the first end cap 21 is positioned at the second place, now, crosses liquid path 10 b and is not communicated with the interior bone 10a of pipe core 10.
As shown in Figure 1, in the utility model embodiment, packer 1 also comprises packing element 11, latch assembly 12 and support member 13.Packing element 11 is set in the periphery of pipe core 10.
In the utility model embodiment, preferably, in order to test the packing element 11 of different size, the inside of the first pipe 101 that the axis that pipe core 10 comprises centrally pipe 10 connects in turn and the second pipe 102, first pipe 101 and the second pipe 102 forms interior bone 10a.
First connecting portion second hole section of the first connecting portion 201 and the junction of the first connecting portion the 3rd hole section form step.Support member 13 is set in the periphery of the second pipe 102, and one end of support member 13 abuts with packing element 11, and the other end of support member 13 is connected to step place.
As shown in Figure 1, latch assembly 12 is set in the periphery of the first pipe 101, and under the effect of external force, latch assembly 12 applies axial force to make the gap between packing element 11 seal test device 2 and pipe core 10 to packing element 11.
Particularly, latch assembly 12 comprises lock ring 121 and cutting ferrule 122.Wherein, lock ring 121 is set in the periphery of the second pipe of pipe core 10; Cutting ferrule 122 is set in the periphery of lock ring 121, and cutting ferrule 122 is for applying axial force to packing element 11.
Cutting ferrule 122 has stepped hole.Stepped hole has cutting ferrule first hole section and cutting ferrule second hole section.The junction of cutting ferrule first hole section and cutting ferrule second hole section forms step, forms cavity 14 between the end face at the place, side towards packing element 11 of step and the first pipe 101, and the first pipe 101 has the first radial direction through hole being communicated with cavity 14 and interior bone 10a respectively.
Flow into after cavity 14 when there being the hydraulic fluid entering interior bone 10a through the first radial direction through hole, under the acting force of hydraulic pressure, promote cutting ferrule 122 towards near the lateral movement at packing element 11 place, thus make the radial tensioner of packing element 11 centrally pipe 10, to realize setting of packer 1.
This packer 1 set principle with locking principle identical with existing packer, repeat no more herein.
In addition, as shown in Figure 1, in embodiment of the present utility model, packer 1 also comprises the first seal 15 and the second seal 16.Wherein, the first seal 15 is positioned at the first groove on the outer wall being opened in the first pipe 101.Second seal 16 be positioned at be opened in cutting ferrule 122 inwall on the second groove.
Preferably, the first seal 15 and the second seal 16 are O type rubber ring.
Pipe core 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 radial direction through hole formed liquid path 10 b.
Below, specifically the assembling process of this pilot system is specifically described:
(1) packer 1 is assembled.First packing element 11 and support member 13 are arranged on the second pipe 102, form the lower part of packer; Then lock ring 121 and cutting ferrule 122 are arranged on the first pipe 101, and load onto the shear pin of some, form the upper part of packer.Then the first pipe 101 and the second pipe 102 are threaded, and to form the inadvisable packer of a complete test, its locking is identical with the packer of prior art with sealing mechanism.
(2) above-mentioned packer 1 is fitted together with test unit 2.Second connecting portion 202 of test unit 2 is stuck in the periphery of the first pipe 101, and one end away from the second pipe 102 of the first pipe 101 of above-mentioned packer 1 is threaded with the second end cap 22; Then analog casing 200 and the second connecting portion 202 are tightly connected; Then the first connecting portion 201 is tightly connected with analog casing 200, finally the first end cap 21 and the second pipe 102 is tightly connected, namely completes the assembling of whole pilot system.
Therefore, the packer 1 of pilot system of the present utility model and the easy accessibility of test unit 2, and can reuse, reduce experimentation cost; On the other hand, what be provided with the interior bone 10a that can be communicated with the first annular region 30 and packer 1 due to packer 1 crosses liquid path 10 b, therefore, it is possible to the hole condition of simulated field fracturing process better.
Below, the whole process of the test of 1 pair of pilot system is described by reference to the accompanying drawings:
1st step, the leakage test of test unit.First suppress the special plug of through hole 21a by first of the first end cap 21 to block, then suppress through hole 22a injection liquid hydraulic fluid from second of the second end cap 22 and carry out suppressing testing envelope, after voltage stabilizing is qualified, then complete the leakage test of the seal be positioned on packer 1.Note, in this process of the test, pressure testing top pressure does not exceed the starting pressure of packer 1.Then the first end cap 21 shackle 4 is enclosed ~ 5 circles, make the position of the 3rd seal 17 be arranged on the first end cap 21 on the right crossing liquid path 10 b of the second pipe 102, the interior bone 10a of packer 1 is allowed to be communicated with the first annular region 30, suppress the 3rd of through hole 202a and the first connecting portion 201 to suppress through hole 201a block the 4th of the second connecting portion 202 the simultaneously, suppress through hole 22a from second of the second end cap 22 again and suppress examination sealing, what sealing load must not be less than packer 1 first annular region 30 and the second annular region 40 tests seal pressure.After examination sealing is qualified, then complete the leakage test of test unit, pressure release prepares next-step operation.
2nd step, setting of packer.First the first end cap 21 is tightened on the second pipe 102, makes the left side of crossing liquid path 10 b of the position of the 3rd seal 17 on the hole wall being opened in the second pipe 102, namely now cross liquid path 10 b and be not communicated with interior bone 10a; Then suppress through hole 22a from second of the second end cap 22 to be undertaken suppressing setting by the requirement that sets of packer 1.
3rd step, the first annular region 30 of packer tests envelope.According to actual condition, packer 1 is the first annular region 30 pressure-bearing before this, and the pressure of the interior bone 10a of pipe core 10 is equal with the first annular region 30.First the first end cap 21 shackle 4 is enclosed ~ 5 circles, make the position of the 3rd seal 17 be arranged on the first end cap 21 on the right crossing liquid path 10 b of the second pipe 102, now interior bone 10a passed through liquid path 10 b and was communicated with the first annular region 30, the plug that shutoff suppresses through hole 202a place at the 4th of the second connecting portion 202 is laid down simultaneously, then suppress through hole 22a from second of the second end cap 22 and to suppress by the pressure-bearing rank that packer 1 designs and test 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, during the second annular region 40 pressure-bearing of packer, the pipe core of packer is without standby pressure.First the plug that shutoff suppresses through hole 201a place at the 3rd of the first connecting portion 201 is laid down, shutoff is arranged on the 4th of the second connecting portion 202 and suppresses through hole 202a, then suppresses through hole 201a from the 3rd of the first connecting portion 201 and suppresses and test envelope to the second annular region 40 of packer.After voltage stabilizing is qualified, then complete the bulk testing in Special testing device of hydraulic setting, packer.
5th step, the deblocking of packer and device dismounting.First fixed by analog casing 200, laid down by the first connecting portion 201 with pipe wrench or other detaching equipments, support member 13 can move right, and namely completes the deblocking of packer; The reverse-order of then installing by test unit is dismantled each part one by one.
From above description, can find out, the utility model the above embodiments achieve following technique effect: packer also comprises the liquid passage be excessively communicated with interior bone be opened on the tube wall of pipe core, above-mentionedly to arrange, after above-mentioned packer is arranged on test unit inside, the liquid with certain pressure can pass through liquid passage and enter interior bone, thus the pressure acted on packer can be simulated in actual field staged fracturing process, compared with prior art, the pressure-bearing mode of the packer in this pilot system is closer to actual condition, therefore, more accurate to the result of the experiments of sealing performance that packer is done.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (11)
1. a pilot system, comprise packer (1) and be set in the test unit (2) of described packer (1) periphery, described packer (1) comprises pipe core (10), described pipe core (10) has interior bone (10a), it is characterized in that, described packer (1) also comprise be opened in described pipe core (10) tube wall on be communicated with described interior bone (10a) cross liquid passage (10b).
2. pilot system according to claim 1, is characterized in that, described test unit (2) comprising:
Thimble assembly (20), described packer (1) is arranged on the inside of described thimble assembly (20);
First end cap (21), is tightly connected with the first end of described pipe core (10), described first end cap (21) have be communicated with described interior bone (10a) first suppress through hole (21a);
Second end cap (22), is tightly connected with the second end of described pipe core (10), described second end cap (22) have be communicated with described interior bone (10a) second suppress through hole (22a);
Wherein, one end and the described pipe core (10) of close described first end cap (21) of described thimble assembly (20) are tightly connected and form the first annular region (30), described liquid passage (10b) of crossing is communicated with described first annular region (30), described thimble assembly (20) have be communicated with described first annular region (30) the 3rd suppress through hole (201a).
3. pilot system according to claim 2, is characterized in that, described thimble assembly (20) comprising:
Analog casing (200);
First connecting portion (201), the axial direction had along described pipe core (10) is communicated with and the first connecting portion first hole section of reducing gradually of aperture successively, first connecting portion second hole section and the first connecting portion the 3rd hole section, the described first connecting portion first hole section of described first connecting portion (201) and the first end of described analog casing (200) are tightly connected, described first connecting portion the 3rd hole section of described first connecting portion (201) and the first end of described pipe core (10) are sealed and matched, and surround described first annular region (30) between the described first connecting portion second hole section of described first connecting portion (201) and the outer wall of described pipe core (10).
4. pilot system according to claim 3, is characterized in that, the described 3rd suppresses through hole (201a) is opened on the hole wall of described first connecting portion (201) of described first connecting portion second hole section correspondence.
5. pilot system according to claim 3, it is characterized in that, form the second annular region (40) between one end away from described first end cap (21) of described thimble assembly (20) and described pipe core (10), described thimble assembly (20) have be communicated with described second annular region (40) the 4th suppress through hole (202a).
6. pilot system according to claim 5, it is characterized in that, described thimble assembly (20) also comprises the second connecting portion (202) be tightly connected with described packer (1) and described analog casing (200) respectively, described second connecting portion (202) axial direction had along described pipe core (10) is communicated with and the second connecting portion first hole section of increasing gradually of aperture successively, second connecting portion second hole section and the second connecting portion the 3rd hole section, second end of described second connecting portion first hole section and described pipe core (10) is tightly connected, described second annular region (40) is surrounded between described second connecting portion second hole section and the outer wall of described pipe core (10), second end of described second connecting portion the 3rd hole section and described analog casing (200) is tightly connected.
7. pilot system according to claim 2, it is characterized in that, described first end cap (21) is connected with described pipe core (10) pivotable, to make described first end cap (21) move on the axis direction of described pipe core (10), thus control the described break-make crossing liquid passage (10b).
8. pilot system according to claim 7, it is characterized in that, one end of close described first end cap (21) of described pipe core (10) has threaded hole, and described first end cap (21) has the thread segment coordinated with described threaded hole.
9. pilot system according to any one of claim 1 to 8, it is characterized in that, the first pipe (101) that described pipe core (10) axis comprised along described pipe core (10) connects in turn and the second pipe (102), described first pipe (101) and the described second inside of managing (102) form described interior bone (10a).
10. pilot system according to claim 3, is characterized in that, described packer (1) also comprises packing element (11), and described packing element (11) is set in the periphery of described pipe core (10).
11. pilot systems according to claim 10, it is characterized in that, the described first connecting portion second hole section of described first connecting portion (201) and the junction of described first connecting portion the 3rd hole section form step, described packer (1) also comprises support member (13), described support member (13) is set in the periphery of described pipe core (10), and one end of described support member (13) abuts with described packing element (11), the other end of described support member (13) is connected to described step place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840916.8U CN205138738U (en) | 2015-10-27 | 2015-10-27 | Test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840916.8U CN205138738U (en) | 2015-10-27 | 2015-10-27 | Test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205138738U true CN205138738U (en) | 2016-04-06 |
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| CN201520840916.8U Active CN205138738U (en) | 2015-10-27 | 2015-10-27 | Test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640036A (en) * | 2015-10-27 | 2017-05-10 | 中国石油天然气股份有限公司 | Test system |
| CN107630696A (en) * | 2017-09-11 | 2018-01-26 | 中国石油化工股份有限公司 | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup |
| CN108732022A (en) * | 2017-04-25 | 2018-11-02 | 中国石油化工股份有限公司 | Device and method for the test of packer pressure-bearing |
-
2015
- 2015-10-27 CN CN201520840916.8U patent/CN205138738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640036A (en) * | 2015-10-27 | 2017-05-10 | 中国石油天然气股份有限公司 | Test system |
| CN108732022A (en) * | 2017-04-25 | 2018-11-02 | 中国石油化工股份有限公司 | Device and method for the test of packer pressure-bearing |
| CN107630696A (en) * | 2017-09-11 | 2018-01-26 | 中国石油化工股份有限公司 | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup |
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