CN108533248A - Casing annulus pressure simulation device - Google Patents
Casing annulus pressure simulation device Download PDFInfo
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- CN108533248A CN108533248A CN201810512884.7A CN201810512884A CN108533248A CN 108533248 A CN108533248 A CN 108533248A CN 201810512884 A CN201810512884 A CN 201810512884A CN 108533248 A CN108533248 A CN 108533248A
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- casing
- oil pipe
- annular space
- seat
- test
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- 238000004088 simulation Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 171
- 239000012530 fluid Substances 0.000 claims abstract description 89
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 230000008676 import Effects 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims description 70
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 39
- 230000037361 pathway Effects 0.000 claims description 24
- 239000011888 foil Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 10
- 229930195733 hydrocarbon Natural products 0.000 abstract description 10
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000011156 evaluation Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 16
- 238000009434 installation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 241001463139 Vitta Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 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
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The present invention provides a kind of casing annulus pressure simulation device.Casing annulus pressure simulation device of the present invention, pass through oil pipe and the sheath assembly being set on the outside of oil pipe, casing drilling includes multiple casings being arranged successively from inside to outside, simulate the casing programme of deep water hydrocarbon well, it is realized and is tightly connected by sealing device respectively in the both ends of each pipeline, and test fluid import and test fluid outlet are respectively arranged on sealing device, oil pipe is detected by pressure sensor, pressure inside casing annulus and the first annular space, so as to accurately obtain the pressure value in oil pipe and each annular space, and then it can be with the underwater import security of accurate evaluation, reduce production accident, improve production safety and efficiency.
Description
Technical field
The present invention relates to marine oil and gas drilling well and development technique fields more particularly to a kind of casing annulus pressure simulation to fill
It sets.
Background technology
Deep water hydrocarbon field has become the important locality of Global Oil and Gas Resources supply, and exploitation deep water hydrocarbon resource has high throw
Enter, the feature of high risk and high reward.Underwater well head is the key equipment of the drilling well of deep water hydrocarbon well, completion, production, in drilling well, complete
During well operations, underwater well head lower end connects multilayer sleeve, and upper end connects preventer group and marine riser；In process of production,
Underwater well head lower end connects multilayer sleeve, and upper end connects subsea production tree, and shaft bottom temperature reservoirs fluid passes through underwater by oil pipe
Well head, production tree, standpipe enter production platform.Limitation due to cementing technology and well cementation conceptual design, part completion
Liquid is deposited in the annular space between each layer casing, and completion fluid column upper end is that wellhead casing pipe is hung, lower end is cement sheath, is formd
Confined space.But in fracture stimulation operations, production process, cementing concrete ring can be by wellbore heat and Annular cutting body heat
The influence of supercharging is expanded, cementing concrete ring is faced with drawing by the joint effect of a variety of load such as temperature change and internal pressure variation
Failure and shear fails are stretched, tensile failure and shear fails can cause to will produce small crack or annular inside cementing concrete ring
Gap.High pressure gas in reservoir, which is flowed to via crack or annular gap in the multilayer sleeve annular space of well head, to be assembled, with close
Gaseous mass inside closed loop sky increases, and the pressure of fluid will be increased constantly in multilayer sleeve annular space, in multilayer sleeve annular space
Pressure can destroy casing, influence the safety of oil/gas well more than after certain pressure value.
In the prior art, underwater well head installation and it is complicated, cannot directly measure oil well test, the production phase,
Pressure value between each layer casing annulus can only be obtained by the method for theoretical calculation, and then assess well head safe.
But pass through the pressure change of each layer casing annulus of theory analysis, the assumed condition and calculating parameter of theoretical model
There is some difference with true pit shaft multilayer sleeve annulus structure, leads to the actual pressure of result of calculation and multilayer sleeve annular space
Difference is larger, cannot meet the actual needs of well head safe assessment.
Invention content
The present invention provides a kind of casing annulus pressure simulation device, inaccurate to solve existing theoretical calculation casing annulus pressure
Really, the technical issues of well head safe assessment needs cannot be met.
The present invention provides a kind of casing annulus pressure simulation device, including：It pressure sensor, oil pipe and is set in described
Sheath assembly on the outside of oil pipe；Described sleeve pipe component includes multiple casings being arranged successively from inside to outside, and adjacent casing it
Between gap form casing annulus, gap between the casing of innermost layer and the oil pipe forms the first annular space；The oil pipe and
The first end of multiple described sleeve pipes is tightly connected by first sealing device, and the second end of the oil pipe and the multiple casing is logical
Cross the sealed connection of the second sealing device；It is provided in the first sealing device and is respectively communicated with the oil pipe, described sleeve pipe annular space
It is exported with the test fluid of first annular space；It is provided on second sealing device and is respectively communicated with the oil pipe, described sleeve pipe
The test fluid import of annular space and first annular space；The pressure sensor is multiple, is respectively used to measure the oil pipe, described
Pressure inside casing annulus and first annular space.
Casing annulus pressure simulation device as described above, wherein the lateral surface of outermost layer casing is equipped with foil gauge, uses
In the deflection of detection outermost layer casing.
Casing annulus pressure simulation device as described above, wherein first sealing device includes：Tubing head, casing head with
And ring flange；The ring flange center is provided with central through hole；The first end of the oil pipe pass through the central through hole with it is described
Tubing head is tightly connected, and is provided with first seal between the first end of the oil pipe and the tubing head；Each casing
First end be correspondingly arranged there are one described sleeve pipe head and with the first end of the casing head be tightly connected；Each casing head
Second end connect with the flangeseal.
Casing annulus pressure simulation device as described above, wherein be provided on the ring flange and first annular space
First TCH test channel of connection, the casing TCH test channel being connected to described sleeve pipe annular space；Be provided on the tubing head with it is described
The coiled tubing test channel of oil pipe connection；First TCH test channel, described sleeve pipe TCH test channel and the coiled tubing test channel
Inside it is respectively arranged with the pressure sensor.
Casing annulus pressure simulation device as described above, wherein the test fluid outlet include coiled tubing test liquid export,
First test fluid exports and the outlet of casing test fluid；The coiled tubing test liquid outlet is arranged on the tubing head, the oil
The oil pipe liquid outlet channel for being connected to that inside the oil pipe and the coiled tubing test liquid exports is provided on tube head；First test fluid
Outlet and the outlet of described sleeve pipe test fluid are separately positioned on the ring flange, and are provided with described in connection on the ring flange
First test fluid export and the first liquid outlet channel of first annular space, be connected to described sleeve pipe test fluid export and described sleeve pipe ring
Empty casing liquid outlet channel.
Casing annulus pressure simulation device as described above, wherein oil pipe gas vent is additionally provided on the tubing head, and
The oil pipe bleed passage being connected to inside the oil pipe with the oil pipe gas vent is provided in the tubing head；On the ring flange
It is additionally provided with the first gas vent and casing gas discharging mouth；And connection first gas vent and institute are additionally provided on the ring flange
It states the first bleed passage of the first annular space, be connected to the casing gas discharging channel of described sleeve pipe gas vent and described sleeve pipe annular space.
Casing annulus pressure simulation device as described above, wherein second sealing device includes：Oil pipe seat and more
A casing seat；The first end of the oil pipe seat is tightly connected with the second end of the oil pipe；The second end of each casing is right
One casing seat should be set and be tightly connected with the first end of the casing seat；The second end of the oil pipe seat and multiple sets
The second end of tube socket is tightly connected successively from inside to outside.
Casing annulus pressure simulation device as described above, wherein the oil pipe seat includes：Oil pipe seat ontology, setting exist
First pedestal of the oil pipe seat body first end and the second pedestal in the oil pipe seat ontology second end is set, and described
The diameter of second pedestal is more than the diameter of the oil pipe seat ontology；The second end of the oil pipe is set in the outer of first pedestal
Side；Described sleeve pipe seat include casing seat ontology and be arranged described sleeve pipe seat body first end casing seat protrusion；The set
The second end of pipe is set in the outside of described sleeve pipe seat protrusion；The oil pipe seat ontology and multiple casing seat ontologies from inside to outside according to
Secondary sealed connection.
Casing annulus pressure simulation device as described above, wherein the test fluid import include the import of coiled tubing test liquid,
First test fluid import and casing test fluid import；Bottom fitting, the coiled tubing test liquid are installed on second pedestal
Import is arranged on the bottom fitting, and the central part of the bottom fitting, the oil pipe seat ontology and first pedestal
Inside it is provided with the oil pipe feed pathway being connected to inside the oil pipe with the coiled tubing test liquid entrance；The first test fluid import
It is arranged on second pedestal, and second pedestal is provided with the edge part of the oil pipe seat ontology and is connected to the first annular space
With the first feed pathway of the first test fluid import；Described sleeve pipe test fluid import is arranged on described sleeve pipe seat, and described
The casing feed pathway of connection described sleeve pipe annular space and described sleeve pipe test fluid import is provided in casing seat.
Casing annulus pressure simulation device as described above, further includes data acquisition device and hydraulic control device；It is described
Data acquisition device is electrically connected with the pressure sensor；The hydraulic control device passes through hydraulic return line and the test
Liquid outlet passes through hydraulic pressure feed liquor pipeline and the test fluid inlet communication.
Casing annulus pressure simulation device of the present invention passes through oil pipe and the sheath assembly being set on the outside of oil pipe, casing
Drilling includes multiple casings being arranged successively from inside to outside, simulates the casing programme of deep water hydrocarbon well, the both ends point of each pipeline
It is not realized and is tightly connected by sealing device, and be respectively arranged with test fluid import and test fluid outlet on sealing device, passed through
Pressure sensor detects the pressure inside oil pipe, casing annulus and the first annular space, so as to accurately obtain oil pipe and each ring
Pressure value in sky, and then production accident can be reduced with the underwater import security of accurate evaluation, improve production safety and efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of casing annulus pressure simulation device of the present invention；
Fig. 2 is the enlarged diagram of first sealing device part in Fig. 1；
Fig. 3 is the structural schematic diagram of the second sealing device in Fig. 1；
Fig. 4 is the structural schematic diagram of oil pipe seat in Fig. 3.
Reference sign：
1：Oil pipe；11：Tubing head；111：Tubing head ontology；112：Tubing head protrusion；113：Coiled tubing test channel；114：
Oil pipe liquid outlet channel；115：Oil pipe bleed passage；12：Oil pipe seat；121：Oil pipe seat ontology；122：First pedestal；123：Second
Pedestal；124：Oil pipe feed pathway；125：First feed pathway；
2：First sleeve；21：First set tube head；22：First set tube socket；221：First set tube socket ontology；222：First set
Tube socket protrusion；
3：Second casing；31：Second casing head；32：Second casing seat；321：Second casing seat ontology；322：Second set
Tube socket protrusion；323：Second feed pathway；
4：Third casing；41：Third casing head；42：Third casing seat；421：Third casing seat ontology；422：Third set
Tube socket protrusion；423：Third feed pathway；
5：Quadruplet pipe；51：Quadruplet pipe head；52：Quadruplet pipe seat；521：Quadruplet pipe seat ontology；522：4th set
Tube socket protrusion；523：4th feed pathway；
6：Pressure sensor；7：Foil gauge；
8：Ring flange；801：First TCH test channel；802：Second TCH test channel；803：Third TCH test channel；804：4th
TCH test channel；805：First liquid outlet channel；806：Second liquid outlet channel；807：Third liquid outlet channel；808：4th liquid outlet channel；
809：First bleed passage；810：Second bleed passage；811：Third bleed passage；812：4th bleed passage；
9：Bottom fitting；10：Hydraulic control device；101：Hydraulic return line；102：Hydraulic pressure feed liquor pipeline；103：Hydraulic pressure
Pipe joint；
20：First annular space；30：Second annular space；40：Third annular space；50：4th annular space；60：Data acquisition device；601：
Test lead；70：Vent valve；80：Fastener；90：Sealing element.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Fig. 1 is the structural schematic diagram of casing annulus pressure simulation device of the present invention；Fig. 2 is first sealing device portion in Fig. 1
The enlarged diagram divided；Fig. 3 is the structural schematic diagram of the second sealing device in Fig. 1；Fig. 4 is the structural representation of oil pipe seat in Fig. 3
Figure.
Referring to figs. 1 to Fig. 4, the present embodiment provides a kind of casing annulus pressure simulation devices, including：Pressure sensor 6, oil
Pipe 1 and the sheath assembly for being set in 1 outside of oil pipe；Sheath assembly includes multiple casings being arranged successively from inside to outside, and phase
Gap between adjacent casing forms casing annulus, and the gap between the casing and oil pipe 1 of innermost layer forms the first annular space 20；Oil
The first end of pipe 1 and multiple casings is tightly connected by first sealing device, and the second end of oil pipe 1 and multiple casings passes through second
Sealing device is tightly connected；The test for being respectively communicated with oil pipe 1, casing annulus and the first annular space 20 is provided in first sealing device
Liquid exports；The test fluid import for being respectively communicated with oil pipe 1, casing annulus and the first annular space is provided on second sealing device；Pressure
Sensor 6 is multiple, is respectively used to the internal pressure of detection oil pipe, casing annulus and the first annular space.
Specifically, the present embodiment middle sleeve component may include two, multiple casings such as three, and multiple casings are by interior phase
Sheathed setting successively.Preferably, sheath assembly includes the first sleeve 2 being arranged successively from inside to outside, the second casing 3, third set
Pipe 4 and Quadruplet pipe 5, the gap between first sleeve 2 and oil pipe 1 form the first annular space 20, the second casing 3 and first sleeve
Gap the second annular spaces of Cong Cheng 30 between 2, the gap formation third annular space 40 between third casing 4 and the second casing 3, the 4th set
Gap between pipe 5 and third casing 4 forms the 4th annular space.Wherein, oil pipe 1, first sleeve 2, the second casing 3, third casing 4
And Quadruplet pipe 5 is cylindric, oil pipe 1 simulates the vitta structure in actual production, and first sleeve 2 is simulated in actual production
Production casing, the second casing 3 simulate actual production in intermediate casing, third casing 4 simulate actual production in surface layer set
Pipe, Quadruplet pipe 5 simulate the surface pipe conduit in actual production.The first end of oil pipe 1 and each casing passes through the first sealing
Device is tightly connected, and the second end of oil pipe 1 and each casing is tightly connected by the second sealing device, wherein first sealing device
It can be that connector connects with the second sealing device, can also be welding etc., do not limit herein.Pass through above-mentioned setting the present embodiment
Simulate the casing programme of deep water hydrocarbon well.
For the flowing of liquid in each annular space in simulation deep water hydrocarbon well, the present embodiment first sealing device is equipped with difference
It is connected to the test fluid outlet of oil pipe 1, the first annular space 20, the second annular space 30, third annular space 40 and the 4th annular space 50, it is close second
Seal apparatus is equipped with the survey for being respectively communicated with oil pipe 1, the first annular space 20, the second annular space 30, third annular space 40 and the 4th annular space 50
Test fluid outlet and test fluid import are provided device with liquid by pipeline respectively and are connected to, you can in each pipeline by test solution import
The interior test fluid for forming preset pressure, to simulate the liquid condition in deep water hydrocarbon well.
Pressure sensor 6 can be separately positioned on oil pipe 1, the first annular space 20, the second annular space 30, third annular space 40 and
The inside of four annular spaces 50, pressure sensor 6 can be arranged in other and oil pipe 1, the first annular space 20, the second annular space 30, third ring
In the channel that sky 40 and the 4th annular space 50 are connected to, such as offered and oil in first sealing device or the second sealing device
The TCH test channel being connected to inside pipe 1 and each annular space, pressure sensor are mounted in TCH test channel.The present invention is to pressure sensor
Type do not limit.
Casing annulus pressure simulation device provided in this embodiment passes through oil pipe and the casing group being set on the outside of oil pipe
Part, sheath assembly include multiple casings being arranged successively from inside to outside, simulate the casing programme of deep water hydrocarbon well, each pipeline
Both ends are realized by sealing device be tightly connected respectively, and test fluid import are respectively arranged on sealing device and test fluid goes out
Mouthful, by pressure sensor detect oil pipe, casing annulus and the first annular space internal pressure, so as to accurately obtain oil pipe and
Pressure value in each annular space, and then production accident can be reduced with the underwater import security of accurate evaluation, improve production safety and effect
Rate.
Further, in order to verify casing annulus pressure simulation device measure pressure accuracy, the present embodiment it is outermost
The lateral surface of layer casing is equipped with foil gauge 7, the deflection for detecting outermost layer casing.Outermost layer is tested by foil gauge 7
Then the mechanically deform amount of casing calculates the pressure value obtained in outermost layer casing, passed with the pressure being arranged in outermost layer casing
The pressure value of sensor test is compared, and judges the consistency of simulator.The present invention does not limit the type of foil gauge.
Certainly, in order to verify the accuracy of each pressure value in oil pipe and multilayer sleeve, oil pipe 1, first sleeve 2,
The lateral surface of second casing 3, third casing 4 and Quadruplet pipe 5 can be provided with foil gauge, and the test lead of foil gauge is logical
Cross first sealing device either the second sealing device be connected to outside each layer casing test lead by first sealing device or
Good sealing should be arranged in second sealing device, ensure the leakproofness in oil pipe and each layer casing.
In some optional embodiments, first sealing device includes：Tubing head 11, casing head and ring flange 8；Flange
Disk 8 is provided centrally with central through hole；The first end of oil pipe 1 passes through central through hole to be tightly connected with tubing head 11；Each casing
The first end of head is correspondingly arranged there are one described sleeve pipe head and is tightly connected with the first end of the casing head；Each casing head
Second end with ring flange 8 be tightly connected.
Sheath assembly includes multiple casings, and corresponding casing head is also equipped with multiple.Include first sleeve with sheath assembly
2, it is illustrated for the second casing 3, third casing 4 and Quadruplet pipe 5, first sealing device includes tubing head 11,
A set of tube head 21, the second casing head 31, third casing head 41, Quadruplet pipe head 51 and ring flange 8.
8 central part of ring flange is provided with axial central through hole, and the first end of oil pipe 1 is fed through after central through hole and tubing head
11 are tightly connected.Tubing head 11 include tubing head ontology 111 and be arranged 111 second end of tubing head ontology tubing head protrusion
112, the diameter of tubing head protrusion 112 is less than the diameter of tubing head ontology 111, and 1 first end of oil pipe is set in tubing head protrusion
It realizes that oil pipe 1 is fixedly connected with tubing head protrusion 112 by fastener 80, and is arranged in tubing head protrusion 112 in 112 outside
There is mounting groove, for installing sealing element 90 to ensure the leakproofness with oil pipe 1.Optionally, fastener 80 is set as multiple, such as
Three, four etc., it is arranged along the circumferencial direction interval of oil pipe 1.Optionally, sealing element 90 can be provided with one or two,
Three etc. multiple, and multiple sealing elements 90 are arranged along the axially spaced-apart of tubing head protrusion 112.Certainly, tubing head protrusion 112 can be with
It is connected through a screw thread with the first end of oil pipe 1 or transition joint etc. achieves a fixed connection.
First set tube head 21 includes first set tube head ontology and is arranged first set in first set tube head ontology second end
Tube head protrusion, and the diameter of first set tube head ontology is more than the diameter of first set tube head protrusion.First set tube head ontology and first
The central part of casing head protrusion offers axially extending bore.The first end of first sleeve 2 is set in the outside of first set tube head protrusion
Face, and the end face of the first end of first sleeve 21 is abutted with the end face of the second end of first set tube head ontology.Optionally, first set
The first end of pipe 2 can connect with first set tube head raised thread, be achieved a fixed connection by fastener etc., it is preferable that first
The first end of casing 2 is welded with first set tube head protrusion.Preferably, ring flange 8 passes through fastener 80 and first set tube head ontology
First end be fixedly connected.Fastener 80 can be multiple, for example, three, four etc., multiple fasteners 80 are along first set tube head
The circumferencial direction interval of ontology is arranged.It is also provided with sealing element between ring flange 8 and first set tube head ontology.
Structure, connection type and the first set tube head of second casing head 31, third casing head 41 and Quadruplet pipe head 51
21 structure, connection type are identical, and details are not described herein.
Further, the first TCH test channel 801 and casing annulus being connected to the first annular space 20 are provided on ring flange 8
The casing TCH test channel of connection；The coiled tubing test channel 113 being connected to oil pipe 1 is provided on tubing head 11；First TCH test channel
801, it is respectively arranged with pressure sensor 6 in casing TCH test channel and coiled tubing test channel 113.
Specifically, raised 112 central parts of the tubing head of tubing head 11 axially offer common center channel, tubing head ontology
111 are provided with coiled tubing test channel 113, and coiled tubing test channel 113 is connected to by common center channel with 1 inside of oil pipe, pressure
Sensor 6 is arranged in coiled tubing test channel 113.Pressure sensor 6 can be threadedly coupled with coiled tubing test channel 113, alternatively,
First pressure sensor 6 is placed in coiled tubing test channel 113, fluid sealant is then poured into again and is sealed and be fixedly connected.It is preferred that
The second end on ground, pressure sensor 6 is threadedly coupled with coiled tubing test channel 113, and the first end of pressure sensor 6 is located at oil pipe survey
The outside for pinging 113 facilitates connecting test lead 601.
For being provided with the first TCH test channel 801 being connected to the first annular space 20 on ring flange 8, being connected to the second annular space 30
Two TCH test channels 802, the third TCH test channel 803 being connected to third annular space 40, the 4th test being connected to the 4th annular space 50 are logical
Road 804.First TCH test channel 801, the second TCH test channel 802, third TCH test channel 803 and the 4th TCH test channel 804 difference
It is provided with pressure sensor 6.Preferably, the second end of pressure sensor 6 is threadedly coupled with TCH test channel, pressure sensor 6
First end is located on the outside of TCH test channel, facilitates connecting test lead 601.
Further, test fluid outlet includes the outlet of coiled tubing test liquid, the outlet of the first test fluid and casing test fluid
Outlet；The outlet of coiled tubing test liquid is arranged on tubing head 11, and 1 inside of connection oil pipe and coiled tubing test liquid are provided on tubing head 11
The oil pipe liquid outlet channel 114 of outlet；First test fluid exports and the outlet of casing test fluid is separately positioned on ring flange 8, and
Be provided on ring flange 8 connection the first test fluid outlet with the first liquid outlet channel 805 of the first annular space 20, be connected to casing test fluid
The casing liquid outlet channel of outlet and casing annulus.
Specifically, coiled tubing test liquid outlet is located on tubing head ontology 111, and oil pipe liquid outlet channel 114 is arranged in oil pipe
On head ontology 111, oil pipe liquid outlet channel 114 is connected to by the common center channel in tubing head protrusion 112 with 1 inside of oil pipe.
Preferably, oil pipe liquid outlet channel 114 is opposite with coiled tubing test channel 113.The pipeline that liquid provides device is connect by hydraulic line
Head is connected to oil pipe liquid outlet channel 114, and hydraulic line connector can be threadedly coupled with oil pipe liquid outlet channel 114.
The outlet of the first test fluid, the outlet of the second test fluid, the outlet of third test fluid and the 4th survey are provided on ring flange 8
Test solution export, and be additionally provided on ring flange 8 first liquid outlet channel 805, the second liquid outlet channel 806, third liquid outlet channel 807 with
And the 4th liquid outlet channel 808, wherein the first liquid outlet channel 805 is connected to the outlet of the first test fluid and the first annular space 20, and second goes out liquid
Channel 806 is connected to the outlet of the second test fluid and the second annular space 30, and third liquid outlet channel 807 is connected to the outlet of third test fluid and third
Annular space 40, the 4th liquid outlet channel 808 are connected to the outlet of the 4th test fluid and the 4th annular space 50.
Optionally, in the case where ring flange 8 is fixedly connected by fastener 80 with the first end of first set tube head ontology,
First liquid outlet channel 805 is arranged in the interval between two adjacent fasteners 80, and the first TCH test channel 801 can be with first
Liquid outlet channel 805 is arranged in identical interval, is installed of course for facilitating, it is preferable that the first TCH test channel 801 is arranged another
In interval between outer adjacent fastener 80.Second liquid outlet channel 806, third liquid outlet channel 807 and the 4th liquid outlet channel
808 facilities are similar with the first liquid outlet channel 805, and this will not be repeated here.
In order to be passed through liquid in oil pipe and each layer casing, oil pipe gas vent, and tubing head are additionally provided on tubing head 11
The oil pipe bleed passage 115 of 1 inside and oil pipe gas vent of connection oil pipe is provided in 11；First is additionally provided on ring flange 8 to put
Gas port and casing gas discharging mouth；And the first deflation that the first gas vent of connection and the first annular space 10 are additionally provided on ring flange 8 is logical
Road 809, the casing gas discharging channel for being connected to casing gas discharging mouth and casing annulus.
Specifically, oil pipe gas vent 11 is arranged on the tubing head ontology 111 of tubing head 11, and oil pipe bleed passage 115
It is arranged on tubing head ontology 111, oil pipe bleed passage 115 passes through common center channel in tubing head protrusion 112 and oil pipe 1
Inside connection.Optionally, tubing head ontology 111 is cross four-way structure, first channel and the oil of cross four-way
The common center channel of tube head protrusion 112 is connected to and coaxial；Second channel of cross four-way is coiled tubing test channel
113, it is axial vertical with shared central passage；The third channel of cross four-way is oil pipe liquid outlet channel 114, axial direction
It is vertical with shared central passage；4th channel of cross four-way is oil pipe bleed passage 115, with shared central passage
Coaxially.
The first gas vent, the second gas vent, third gas vent and the 4th gas vent, and flange are provided on ring flange 8
The first bleed passage 809, the second bleed passage 810, third bleed passage 811 and the 4th bleed passage are additionally provided on disk 8
812.Wherein, the first bleed passage 809 is connected to the first gas vent and the first annular space 20, and the second bleed passage 810 connection second is put
Gas port and the second annular space 30, third bleed passage 811 are connected to third gas vent and third annular space 40, and the 4th bleed passage 812 connects
Logical 4th gas vent and the 4th annular space 50.During the experiment, using vent valve 70 by oil pipe gas vent, the first gas vent,
Two gas vents, third gas vent and the 4th gas vent are blocked；When needs are filled with test into oil pipe 1 and each casing annulus
When liquid, vent valve 70 is opened, into oil pipe 1 and each casing annulus from entering test fluid.Vent valve 70 can be existing vent valve
Structure, the present invention do not limit this.
Optionally, in the case where ring flange 8 is fixedly connected by fastener 80 with the first end of first set tube head ontology,
First bleed passage 809 can be provided separately in the interval between two neighboring fastener 80, when two neighboring fastener 80
Between interval it is larger when, the first bleed passage 809 can also with the first TCH test channel 801, the first liquid outlet channel 805 setting exist
In the same interval, for example, as shown in Fig. 2, the first bleed passage 809 and the first TCH test channel 801 are located in the same interval,
But invention is not limited thereto.The setting feelings of second bleed passage 810, third bleed passage 811 and the 4th bleed passage 812
Condition is similar with the first bleed passage 809, and this will not be repeated here.
On the basis of the above embodiments, with continued reference to Fig. 1 to Fig. 4, the second sealing device includes in the present embodiment：Oil pipe
Seat 12 and multiple casing seats；The first end of oil pipe seat 12 is tightly connected with the second end of oil pipe 1；The second end of each casing
It is correspondingly arranged a casing seat and is tightly connected with the first end of the casing seat；The second end of oil pipe seat 12 and multiple casing seats
Second end be tightly connected successively from inside to outside.
Include the first sleeve 2 being arranged successively from inside to outside, the second casing 3, third casing 4 and the 4th with sheath assembly
Illustrated for casing 5, specifically, the second sealing device include oil pipe seat 12, first set tube socket 22, the second casing seat 32,
Third casing seat 42 and Quadruplet pipe seat 52.The first end of oil pipe seat 12 is tightly connected with the second end of oil pipe 1, oil pipe seat 12
The second end of second end and first set tube socket 22 be tightly connected；The first end of first set tube socket 22 and the second of first sleeve 2
End is tightly connected；The first end of second casing seat 32 and the second end of the second casing 3 are tightly connected, and the second of the second casing seat 32
End and the second end of first set tube socket 22 are tightly connected；The first end of third casing seat 42 is sealed with the second end of third casing 4
Connection, the second end of third casing seat 42 and the second end of the second casing seat 32 are tightly connected；The first end of Quadruplet pipe seat 52
It is tightly connected with the second end of Quadruplet pipe 5, the second end of Quadruplet pipe seat 52 connects with the second end sealing of third casing seat 42
It connects.It should be noted that above-mentioned sealed connection, can realize and be tightly connected by fastener, setting sealing element, can also be
It is threadedly coupled, does not limit herein.
Further, oil pipe seat 12 includes：First in 121 first end of oil pipe seat ontology is arranged in oil pipe seat ontology 121
Body 122 and the second pedestal 123 in 121 second end of oil pipe seat ontology is set, and the diameter of the second pedestal 123 is more than oil pipe seat
The diameter of ontology 121；The second end of oil pipe 1 is set in the outside of the first pedestal 122；Casing seat includes casing seat ontology and sets
Set the casing seat protrusion in casing seat body first end；The second end of casing is set in the outside of casing seat protrusion；Oil pipe seat sheet
Body 121 and multiple casing seat ontologies are tightly connected successively from inside to outside.
Specifically, oil pipe seat 12 includes：The first pedestal in 121 first end of oil pipe seat ontology is arranged in oil pipe seat ontology 121
122 and the second pedestal 123 in 121 second end of oil pipe seat ontology is set, and the diameter of the second pedestal 123 is more than oil pipe ontology
121 diameter, the diameter of oil pipe seat ontology 121 are more than the diameter of the first pedestal 122.The second end of oil pipe 1 is set in First
The outside of body 122, optionally, the first end of the first pedestal 122 are provided with the seal groove of installation sealing element 90, the first pedestal 122
Second end lateral surface be provided with external screw thread, the internal thread being arranged with the second end of oil pipe 1 matches.
First set tube socket 22 includes first set tube socket ontology 221 and is arranged in 221 first end of first set tube socket ontology
First set tube socket protrusion 222, the diameter of first set tube socket ontology 221 are more than the diameter of first set tube socket protrusion 222.First sleeve
2 second end is set in the outside of first set tube socket protrusion 222, is provided between first set tube socket protrusion 222 and first sleeve 2
Sealing element 90, to realize sealing.First set tube socket protrusion 222 can be threadedly coupled with first sleeve 2, alternatively, passing through fastener
80 are fixed together first set tube socket protrusion 222 and first sleeve 2, also alternatively, first set tube socket protrusion 222 and first
Casing 2 welds together.First set tube socket ontology 221 is set in the outside of oil pipe seat ontology 121, first set tube socket ontology 221
Second end be fixedly connected with oil pipe seat ontology 121, and the end face of the second end of first set tube socket ontology 221 is connected to second
In the first end face of body 123.The mounting groove that installation sealing element 90 is offered on the lateral surface of oil pipe seat ontology 121, in mounting groove
Sealing element 90 is installed, ensures the leakproofness between oil pipe seat ontology 121 and first set tube socket ontology 221.First set tube socket sheet
The second end of body 221 can be achieved a fixed connection with oil pipe seat ontology 121 by fastener 80, naturally it is also possible to be other connect
Form is connect, is not limited herein.
Second casing seat 32 includes the second casing seat ontology 321 and is arranged first end in the second casing seat ontology 321
The second casing seat protrusion 322, the diameter of the second casing seat ontology 321 is more than the diameter of the second casing seat protrusion 322.Second set
The second end of pipe 3 is set in the outside of the second casing seat protrusion 322, and is set between the second casing seat protrusion 322 and the second casing 3
It is equipped with sealing element 90, to realize sealing.Type of attachment and first sleeve between second casing seat protrusion 322 and the second casing 3
Type of attachment between seat protrusion 222 and first sleeve 2 is identical, is not repeating herein.Second casing seat ontology 321 is set in
The outside of a set of tube socket ontology 221, and the end face of the second end of the second casing seat ontology 321 is connected to the of the second pedestal 123
On end face.The mounting groove of installation sealing element 90 is offered on the lateral surface of first set tube socket ontology 221, is equipped in mounting groove
Sealing element 90 ensures the leakproofness between first set tube socket ontology 221 and the second casing seat ontology 321.Second casing seat ontology
321 can be achieved a fixed connection with first set tube socket ontology 221 by fastener 80, naturally it is also possible to be other connection shapes
Formula does not limit herein.
Third casing seat 42 includes third casing seat ontology 421 and is arranged first end in third casing seat ontology 421
Third casing seat protrusion 422, the diameter of third casing seat ontology 421 is more than the diameter of third casing seat protrusion 422.Third set
The second end of pipe 4 is set in the outside of third casing seat protrusion 422, and is set between third casing seat protrusion 422 and third casing 4
It is equipped with sealing element 90.Type of attachment between third casing seat protrusion 422 and third casing 4 and first set tube socket protrusion 222 and
Type of attachment between first sleeve 2 is identical, and details are not described herein.Third casing seat ontology 421 is set in the second header ontology
321 outside.Connection, seal form and the second casing seat ontology of third casing seat ontology 421 and the second header ontology 321
321 is identical with the connection of first set tube socket ontology 221, seal form, and details are not described herein.Optionally, third casing seat ontology
421 second end is provided with boss, and the diameter of boss is more than the diameter of third casing seat ontology 421.
Quadruplet pipe seat 52 includes Quadruplet pipe seat ontology 521 and is arranged first end in Quadruplet pipe seat ontology 521
Quadruplet pipe seat protrusion 522, the diameter of Quadruplet pipe seat ontology 521 is more than the diameter of Quadruplet pipe seat protrusion 522.4th set
The second end of pipe 5 is set in the outside of Quadruplet pipe seat protrusion 522, the connection of Quadruplet pipe seat protrusion 522 and Quadruplet pipe 5,
Type of attachment between sealing means and first set tube socket protrusion 222 and first sleeve 2 is identical, and details are not described herein.4th set
Tube socket ontology 521 is set in the outside of third casing seat ontology 421, and the end face of the second end of Quadruplet pipe seat ontology 521 is supported
In the boss face of third casing seat 42.The connection of Quadruplet pipe seat ontology 521 and third casing seat ontology 421, seal form
Identical as the connection of the second casing seat ontology 321 and first set tube socket ontology 221, seal form, details are not described herein.
Further, test fluid import include the import of coiled tubing test liquid, the first test fluid import and casing test fluid into
Mouthful；Bottom fitting 9 is installed, coiled tubing test liquid import is arranged on bottom fitting 9, and bottom fitting 9, oil pipe on second pedestal
It is logical that seat ontology 121 is provided with the oil pipe feed liquor being connected to inside oil pipe with coiled tubing test liquid entrance with the central part of the first pedestal 122
Road 124；First test fluid import is arranged on the second pedestal 123, and the edge part of the second pedestal 123 and oil pipe seat ontology 121
It is provided with the first feed pathway 125 of connection the first annular space 20 and the first test fluid import；Casing is arranged in casing test fluid import
The casing feed pathway of connection casing annulus and casing test fluid import is provided on seat, and in casing seat.
Specifically, the first end of bottom fitting 9 is provided with external screw thread, the internal thread with the setting of 123 central part of the second pedestal
Hole connects, and the mounting groove that the first end of bottom fitting 9 offers, and is sealed with installing sealing element 90.Coiled tubing test liquid into
Mouth is arranged on bottom fitting 9, and the central part of bottom fitting 9 axially offers channel, oil pipe seat ontology 121 and the first pedestal
122 central part axially offers the coaxial channel in the channel axially opened up with the central part of bottom fitting 9.Wherein, oil pipe into
Liquid channel 124 includes in channel, oil pipe seat ontology 121 and the first pedestal 122 that the central part of bottom fitting 9 axially opens up
The channel that center portion axially opens up, the import of coiled tubing test liquid are connected to by oil pipe feed pathway 124 with 1 inside of oil pipe.
Due to the second end of first set tube socket ontology 221 and the second casing seat ontology 321 all with the second pedestal 123 first
End abuts, and the first test fluid import is arranged on the second pedestal 123, and the edge of the second pedestal 123 and oil pipe seat ontology 121
Portion is provided with the first feed pathway 125, and the first feed pathway 125 is connected to the first annular space 20 and the first test fluid import.Certainly,
The second end of two casing seat ontologies 321 and the first end of the second pedestal 123 have installation space, and the first test fluid import can also
It is arranged on first set tube socket ontology 221, at this point, the company of being provided in first set tube socket ontology 221 and first set tube socket protrusion 222
First feed pathway of logical first test fluid import and the first annular space, concrete structure and the second casing seat ontology 321 are arranged the
The form of two test fluid imports is similar.
Second test fluid import is arranged on the second casing seat ontology 321, and the second casing seat ontology 321 and the second casing
The second feed pathway 323 is provided in seat protrusion 322, the second feed pathway 323 is connected to the second test fluid import and the second annular space
30。
Third test fluid import is arranged on third casing seat ontology 421, and third casing seat ontology 421 and third casing
Third feed pathway 423 is provided in seat protrusion 422, third feed pathway 423 is connected to the import of third test fluid and third annular space
40。
4th test fluid import is arranged on Quadruplet pipe seat ontology 521, and Quadruplet pipe seat ontology 521 and Quadruplet pipe
The 4th feed pathway 523 is provided in seat protrusion 522, the 4th feed pathway 523 is connected to the 4th test fluid import and the 4th annular space
50。
On the basis of the above embodiments, the present embodiment casing annulus pressure simulation device further includes data acquisition device 60
With hydraulic control device 10；Data acquisition device 60 is electrically connected with pressure sensor 6；Hydraulic control device 10 passes through hydraulic return
Pipeline 101 and test fluid outlet, pass through hydraulic pressure feed liquor pipeline 102 and test fluid inlet communication.
Specifically, data acquisition device 60 is electrically connected by test lead 601 with each pressure sensor 6, and passes through survey
Examination lead 601 is electrically connected with foil gauge 7, carries out data acquisition.Certainly, data acquisition device 60 can be provided with processor, show
Data are carried out processing and directly displayed on a display screen by display screen etc., processor.
Hydraulic control device 10 is used to control being discharged into of test fluid in experiment, be discharged and experimental pressure controls, can be with
It is existing hydraulic servo control apparatus etc., does not limit herein.Hydraulic return line 101 and hydraulic pressure feed liquor pipeline 102 are distinguished
Be provided with hydraulic line connector 103, by hydraulic line connector 103 respectively with test fluid outlet and test fluid inlet communication,
Middle hydraulic line connector 103 can be existing hydraulic line joint structure, and the present invention does not limit this.
It should be noted that in the present invention, sealing element 90 can select the arbitrary signal in the prior art such as sealing ring
Sealing device.Fastener 80 can select the clamp device of any suitable under the prior arts such as trip bolt.
With continued reference to Fig. 1, installation, the experimentation of casing annulus pressure simulation device is detailed below：
Oil pipe 1, first sleeve 2, the second casing 3, third casing 4 and Quadruplet pipe 5 are inserted in successively from inside to outside；Oil
The installation sealing element of tube head 11 is after 90s, is fixedly connected with the first end of oil pipe 2 by fastener 80；Oil pipe seat 12 installs sealing element 90
It is fixedly connected afterwards with the second end of oil pipe 2；By the installation of bottom fitting 2, sealing element is after 90s is fixedly connected with oil pipe seat 12.Each set
The first end of pipe is tightly connected by casing head and ring flange 8, and the second end of each casing is realized by casing seat to be tightly connected.
Pressure sensor 6 is mounted in each TCH test channel, and foil gauge 7 is mounted on to the lateral surface of Quadruplet pipe 5, by pressure sensing
Device 6 and foil gauge 7 are connected to data acquisition device 60 by test lead 601.Vent valve 70 is mounted on each bleed passage
On, and one end of hydraulic return line 101 is installed to by hydraulic line connector 103 on liquid outlet channel, hydraulic return line
101 other end is connected to hydraulic control device 10；One end of hydraulic pressure feed liquor pipeline 102 is pacified by hydraulic line connector 103
It is attached in feed pathway, the other end of hydraulic pressure feed liquor pipeline 102 is connected to hydraulic control device 10.
Vent valve 70 is opened, test liquid is pumped into each annular space by hydraulic pressure feed liquor pipeline 102, when liquid is full of ring
After sky, vent valve 70 is closed.Hydraulic control device 10 pressurizes into each annular space, starts to test, and data acquisition device 60 records
The measurement data of pressure sensor 6 and strain transducer 7.
Casing annulus pressure simulation device provided in this embodiment passes through oil pipe and the casing group being set on the outside of oil pipe
Part, casing drilling include multiple casings being arranged successively from inside to outside, simulate the casing programme of deep water hydrocarbon well, each pipeline
Both ends are realized by sealing device be tightly connected respectively, and test fluid import are respectively arranged on sealing device and test fluid goes out
Mouthful, the TCH test channel being connected to oil pipe, casing annulus and the first annular space is set in first sealing device, is equipped in TCH test channel
Pressure sensor is equipped with foil gauge, by data acquisition device gathered data, so as to accurate in the outside of outermost layer casing
The pressure value in oil pipe and each annular space is obtained, and then production accident can be reduced with the underwater import security of accurate evaluation, improves life
Produce safety and efficiency.
In the description of the present invention, it is to be understood that, in addition, term " first ", " second " are used for description purposes only, and
It should not be understood as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " more
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the above description, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example include
In at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms necessarily needle
To be identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can any one or
It can be combined in any suitable manner in multiple embodiments or example.In addition, without conflicting with each other, those skilled in the art
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined and group
It closes.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of casing annulus pressure simulation device, which is characterized in that including：It pressure sensor, oil pipe and is set in described
Sheath assembly on the outside of oil pipe；Described sleeve pipe component includes multiple casings being arranged successively from inside to outside, and adjacent casing it
Between gap form casing annulus, gap between the casing of innermost layer and the oil pipe forms the first annular space；
The first end of the oil pipe and multiple described sleeve pipes is tightly connected by first sealing device, the oil pipe and the multiple
The second end of casing is tightly connected by the second sealing device；
The test for being respectively communicated with the oil pipe, described sleeve pipe annular space and first annular space is provided in the first sealing device
Liquid exports；It is provided on second sealing device and is respectively communicated with the oil pipe, described sleeve pipe annular space and first annular space
Test fluid import；
The pressure sensor is multiple, is respectively used to detect inside the oil pipe, described sleeve pipe annular space and first annular space
Pressure.
2. casing annulus pressure simulation device according to claim 1, which is characterized in that the lateral surface of outermost layer casing is pacified
Equipped with foil gauge, the deflection for detecting outermost layer casing.
3. casing annulus pressure simulation device according to claim 2, which is characterized in that first sealing device includes：Oil
Tube head, casing head and ring flange；
The ring flange center is provided with central through hole；
The first end of the oil pipe passes through the central through hole to be tightly connected with the tubing head；
The first end of each casing, which is correspondingly arranged there are one described sleeve pipe head and is sealed with the first end of the casing head, to be connected
It connects；The second end of each casing head is connect with the flangeseal.
4. casing annulus pressure simulation device according to claim 3, which is characterized in that
The first TCH test channel being connected to first annular space, the set being connected to described sleeve pipe annular space are provided on the ring flange
Pipe TCH test channel；The coiled tubing test channel being connected to the oil pipe is provided on the tubing head；
It is respectively arranged with the pressure in first TCH test channel, described sleeve pipe TCH test channel and the coiled tubing test channel
Sensor.
5. casing annulus pressure simulation device according to claim 3, which is characterized in that the test fluid outlet includes oil
The outlet of pipe test fluid, the outlet of the first test fluid and the outlet of casing test fluid；
Coiled tubing test liquid outlet is arranged on the tubing head, be provided on the tubing head inside the connection oil pipe and
The oil pipe liquid outlet channel of the coiled tubing test liquid outlet；
The first test fluid outlet and the outlet of described sleeve pipe test fluid are separately positioned on the ring flange, and the flange
It is provided with the outlet of connection first test fluid and the first liquid outlet channel of first annular space on disk, is connected to described sleeve pipe and tests
Liquid exports and the casing liquid outlet channel of described sleeve pipe annular space.
6. casing annulus pressure simulation device according to claim 5, which is characterized in that
It is additionally provided with oil pipe gas vent on the tubing head, and is provided in the tubing head inside the connection oil pipe and described
The oil pipe bleed passage of oil pipe gas vent；
The first gas vent and casing gas discharging mouth are additionally provided on the ring flange；And connection institute is additionally provided on the ring flange
State the first gas vent with the first bleed passage of first annular space, be connected to the set of described sleeve pipe gas vent and described sleeve pipe annular space
Pipe bleed passage.
7. according to claim 1-6 any one of them casing annulus pressure simulation devices, which is characterized in that second sealing
Device includes：Oil pipe seat and multiple casing seats；
The first end of the oil pipe seat is tightly connected with the second end of the oil pipe；
The second end of each casing is correspondingly arranged a casing seat and is tightly connected with the first end of the casing seat；
The second end of the oil pipe seat and the second end of multiple described sleeve pipe seats are tightly connected successively from inside to outside.
8. casing annulus pressure simulation device according to claim 7, which is characterized in that
The oil pipe seat includes：Oil pipe seat ontology, be arranged the oil pipe seat body first end the first pedestal and setting exist
Second pedestal of the oil pipe seat ontology second end, and the diameter of second pedestal is more than the diameter of the oil pipe seat ontology；
The second end of the oil pipe is set in the outside of first pedestal；
Described sleeve pipe seat include casing seat ontology and be arranged described sleeve pipe seat body first end casing seat protrusion；The set
The second end of pipe is set in the outside of described sleeve pipe seat protrusion；
The oil pipe seat ontology and multiple casing seat ontologies are tightly connected successively from inside to outside.
9. casing annulus pressure simulation device according to claim 8, which is characterized in that
The test fluid import includes the import of coiled tubing test liquid, the first test fluid import and casing test fluid import；
Bottom fitting is installed, the coiled tubing test liquid import is arranged on the bottom fitting, and institute on second pedestal
State be provided in bottom fitting, the oil pipe seat ontology and the central part of first pedestal be connected to it is inside the oil pipe and described
The oil pipe feed pathway of coiled tubing test liquid entrance；
The first test fluid import is arranged on second pedestal, and the side of second pedestal and the oil pipe seat ontology
Edge is provided with the first feed pathway of connection the first annular space and the first test fluid import；
Described sleeve pipe test fluid import is arranged on described sleeve pipe seat, and be provided in described sleeve pipe seat connection described sleeve pipe annular space and
The casing feed pathway of described sleeve pipe test fluid import.
10. according to claim 1-6 any one of them casing annulus pressure simulation devices, which is characterized in that further include data
Harvester and hydraulic control device；
The data acquisition device is electrically connected with the pressure sensor；
The hydraulic control device passes through hydraulic pressure feed liquor pipeline and institute by hydraulic return line and the test fluid outlet
State test fluid inlet communication.
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| CN113673126A (en) * | 2021-07-28 | 2021-11-19 | 中国石油大学(北京) | Method and device for calculating finite element of annular space with pressure of multilayer casing for well drilling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112344988A (en) * | 2020-10-15 | 2021-02-09 | 南京航空航天大学 | Measuring device for oil pressure and temperature of inlet of squeeze film damper |
| CN113673126A (en) * | 2021-07-28 | 2021-11-19 | 中国石油大学(北京) | Method and device for calculating finite element of annular space with pressure of multilayer casing for well drilling |
| CN113673126B (en) * | 2021-07-28 | 2024-02-13 | 中国石油大学(北京) | Method and device for calculating annular space pressure finite element of multilayer casing for well drilling |
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