CN208777985U - Horizontal well wellbore caving pressure test device - Google Patents
Horizontal well wellbore caving pressure test device Download PDFInfo
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- CN208777985U CN208777985U CN201820596336.2U CN201820596336U CN208777985U CN 208777985 U CN208777985 U CN 208777985U CN 201820596336 U CN201820596336 U CN 201820596336U CN 208777985 U CN208777985 U CN 208777985U
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Abstract
The utility model discloses horizontal well wellbore caving pressure test devices, including autoclave pressure；Water conservancy diversion plug；Axial thrust mechanism；Bit andits control mechanism, the Bit andits control mechanism can the relatively described rigid bucket edge move radially；Temperature control device, the temperature control device are used to control the temperature in the elastic bucket；Infrared survey mechanism, the infrared survey mechanism includes the first probe being arranged on the downside of first transmittance section and is arranged on the upside of second transmittance section and corresponding second pops one's head in along longitudinal direction with first probe, and first probe and second probe can move synchronously in the horizontal direction；Guiding mechanism includes guide rail, probe clamping device, motor, and the output shaft of the motor is connected with probe clamping mechanism driving.The technology can mechanics and displacement information in the test such as the test of monitoring well eye surrounding rock uniaxial loading, the test of rock three-axis force, creep of rock mechanical test, rock temperature varying stress load test.
Description
Technical field
The utility model relates to Rock Mechanics Test field more particularly to a kind of horizontal well wellbore caving pressure test dresses
It sets.
Background technique
With going deep into for oil and gas development, drilling well vertical depth has been approached myriametre, and different well type barefoot interval length constantly increase
Add, the temperature environment of deep layer rock dramatically increases, and is even up in high temperature well drilling process mid-deep strata rock of borehole temperature
350 DEG C or more, the variation of rock temperature causes the structure of rock and mechanical characteristic that can change, therefore accurate understanding temperature becomes
Change to rock mechanics and damage the affecting laws of broken ring mechanism, under differentiation and prediction wall strength, the especially condition of high temperature
Borehole wall stability has important practical significance to safety drilling engineering.
Caving pressure measurement method it is more, such as indoor measurement, using calculus of finite differences calculate, finite element prediction, but mostly
It is not intended to oil field deep stratum, there is presently no a kind of perfect and continuous test sides particularly with deep layer buried depth high-temperature stratum
Method, main cause are as follows: 1, for superficial part low temperature formation, being joined using the physical property that traditional mechanical test mode can satisfy rock
Several measurements, and method is mature, data acquisition directly generallys use the mechanical tests methods such as single shaft, three axis；2, with high temperature height
The exploitation of kill-job, the influence aggravation of high-temperature, high pressure collective effect to petrophysical parameter, single temperature or confining pressure environment
Simulation cannot accurately simulate required environment；3, temperature, confining pressure are shaped to the test system of complete set with optics test set
System, requires higher integrated level in links such as pressure chamber, optic probes.
Therefore, therefore the simple and direct indoor measurement method and device of a set of economy of research is solution deep layer high temperature well drilling shaft lining
Stablize the task of top priority of mechanics study.
Utility model content
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide a kind of levels
Well borehole collapse pressure test device, the structure simple, intuitive is easy to operate, and different well type wellbores under warm change state may be implemented
The synchronous acquisition of optical signalling during experiment of machanics, and realize the identifying processing of signal and the tracking and testing of creeping displacement, into
And wellbore rock temperature is obtained to the specific displacement information of caving pressure.
The specific technical solution of the utility model is: a kind of horizontal well wellbore caving pressure test device, comprising:
Autoclave pressure, the autoclave pressure include horizontally extending pressure chamber and horizontally extending test
Chamber, the test chamber include rigid bucket in the pressure chamber and shape can occur in the rigid bucket and radially
The elastic bucket of change；
The right side in the elastic bucket is arranged in water conservancy diversion plug, the water conservancy diversion plug, and for rock accommodating, the water conservancy diversion is stifled
Head has the first transmittance section；
Axial thrust mechanism, the relatively described water conservancy diversion plug of the axial thrust mechanism are located at the right side of rock, the axial direction
Thrust mechanism can autoclave pressure movement relatively, one end that the axial thrust mechanism is located in autoclave pressure be provided with can with it is described
The deflector of pressure chamber and test chamber engagement, the deflector includes can be in itself and the pressure chamber and the test
The seepage channel that will be connected between the pressure chamber and the elastic bucket when chamber engages, the deflector have the second light transmission
Portion；
Bit andits control mechanism, the Bit andits control mechanism can the relatively described rigid bucket edge transverse shifting, the Bit andits control
One end of mechanism is located in the pressure chamber, and the other end setting of the Bit andits control mechanism is on the elastic bucket；
Temperature control device, the temperature control device are used to control the temperature in the elastic bucket；
Infrared survey mechanism, the infrared survey mechanism include be arranged on the right side of first transmittance section first probe and
It is arranged on the left of second transmittance section and transversely corresponding second pops one's head in first probe, first probe and institute
Stating the second probe can move synchronously in the horizontal direction；
Guiding mechanism, guiding mechanism include guide rail, can be movably arranged on the guide rail along the extending direction of guide rail
Probe clamping device, the motor with output shaft, the probe clamping device are described for clamping the first probe or the second probe
The output shaft of motor is connected with probe clamping mechanism driving.
Preferably, the autoclave pressure includes outer cover, and the axial thrust mechanism includes axial loading device, can be with the axis
It is sequentially connected to loading device and is threaded through the outer distance rod covered, the distance rod is located at one end in the autoclave pressure
It is fixedly installed the seal cover board with outer cover sealing, the deflector includes that can match to merge to have with the elastic bucket to seep
The seepage flow plug of circulation road, the seepage flow connector being arranged on the seepage flow plug, the diversion trench and the infiltration of the seepage flow connector
The seepage channel connection of plug is flowed, the seepage channel is connected to elastic barrel cavity, and the diversion trench is connected to pressure chamber.
Preferably, the seepage flow plug is provided with protective cover away from the side of rock at it, and the protective cover is located at institute
It states the first probe or the second probe is outer.
Preferably comprising: diversion pipe；The pressure chamber has side wall, is provided with and the pressure chamber on the side wall
The drain plug of connection, the diversion pipe are threaded through on the side wall.
Preferably, the temperature control device includes the heater extended to the left from the water conservancy diversion plug.
Preferably, there is sealed chamber, first probe or the second probe between the water conservancy diversion plug and the side wall
It is arranged in the sealed chamber.
Preferably, the seepage flow connector is provided with multiple water conservancy diversion along the circumferential direction arranged towards the side of rock at it
Slot, each diversion trench are connected to seepage channel.
Preferably, including control unit, described control unit are used for axial thrust mechanism, Bit andits control mechanism, temperature
Control mechanism, infrared survey mechanism are controlled.
Preferably, second transmittance section is radially positioned between the seepage flow plug and the seepage flow connector.
The application's is designed to provide a kind of caving pressure test device for testing rock under different temperatures variation, adopts
It can be realized the control of rock axial compressive force, radial confining pressure control, temperature control, wellbore control, infrared ray (laser) with the device
Multimetering, it can monitor the test of wellbore Creep Mechanics, borehole collapse pressure test test, horizontal well wellbore temperature change collapsing pressure
Optical information in the test such as power testing experiment.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.
Fig. 1 is the structural schematic diagram according to the horizontal well wellbore caving pressure test device of the utility model embodiment.
Fig. 2 is the bottom view of axial thrust mechanism；
Fig. 3 is the schematic cross-section of Fig. 2；
Fig. 4 is the top view of autoclave pressure；
Fig. 5 is the cross-sectional view of Fig. 4；
Fig. 6 is the structural schematic diagram of guiding mechanism a part.
Fig. 7 is the structural schematic diagram of guiding mechanism another part.
Fig. 8 is rock forces testing schematic diagram.
The appended drawing reference of the figures above: 1- autoclave pressure；2- axial thrust mechanism；3- infrared survey mechanism；4- guiding mechanism；
401- support；402- guide rail；403- probe clamping device；404- motor；405- gear drive；6- temperature control device；
7- control unit；201- axial loading device；202- sealing device；203- upper cover；204- seepage flow plug；The second light transmission of 205-
Portion；206- seepage flow connector；207- seal cover board；208- seepage channel；209- protective cover；301- second pops one's head in；303- interface；
101- pressure chamber；102- test chamber；103- Bit andits control mechanism；104- water conservancy diversion plug；The first transmittance section 105-；106- first
Probe；107- drain plug；108- rigidity bucket；109- elasticity bucket；110- heater.
Specific embodiment
In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood
Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without
It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that
Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.
Referring to Fig.1, the horizontal well borehole collapse shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in the embodiment of the present application
Pressure test device includes: autoclave pressure 1, and the autoclave pressure 1 is including horizontally extending pressure chamber 101 and along level side
To the test chamber 102 of extension, the test chamber 102 includes the rigid bucket 108 in the pressure chamber 101 and is located at described
And it can the elastic bucket 109 that radially deformation occurs in rigid bucket 108；Water conservancy diversion plug 104, the water conservancy diversion plug 104 are arranged in institute
The left side in elastic bucket 109 is stated, for rock accommodating, the water conservancy diversion plug 104 has the first transmittance section 105；Axial thrust machine
Structure 2, the relatively described water conservancy diversion plug 104 of the axial thrust mechanism 2 are located at the right side of rock, and the axial thrust mechanism 2 can phase
The autoclave pressure 1 is moved, one end that the axial thrust mechanism 2 is located in autoclave pressure 1 is provided with can be with the pressure chamber 101
With the deflector of the test chamber 102 engagement, the deflector includes can be in the seepage flow plug 204 and the pressure
The seepage channel that will be connected between the pressure chamber 101 and the elastic bucket 109 when chamber 101 and the test chamber 102 engage
208, the deflector has the second transmittance section 205；Bit andits control mechanism 103, the Bit andits control mechanism 103 can be opposite
The rigidity bucket 108 moves radially, and one end of the Bit andits control mechanism 103 is located in the pressure chamber 101, institute's rheme
The other end setting of control mechanism 103 is moved on the elastic bucket 109；Temperature control device 5, the temperature control device 5 are used
It is controlled in the temperature in the elastic bucket 109；Infrared survey mechanism 3, the infrared survey mechanism 3 include that setting exists
First probe 106 on 105 right side of the first transmittance section and setting are visited in 205 left side of the second transmittance section and with described first
First 106 corresponding second probe 301, first probe 106 301 can be synchronous in the horizontal direction with second probe along longitudinal direction
Movement.
By above structure, the fluid entered from pressure chamber 101 can enter from the seepage channel 208 of seepage flow plug 204
Elastic bucket 109, the fluid in pressure chamber 101 can provide radial effect by 103 pairs of elastic buckets 109 of Bit andits control mechanism
Power can provide rock axial active force into the fluid in elastic bucket 109, and temperature control device 5 can be according to temperature
Sensor controls the temperature of the fluid in elastic bucket 109, has thus constructed the high temperature and pressure structure of rock.And
And infrared survey mechanism 3 can also measure the rock in elastic bucket 109.
Referring to shown in Fig. 4 and Fig. 5, specifically, autoclave pressure 1 includes pressure chamber 101 and test chamber 102.Pressure chamber 101 has
Left side wall and right side wall.The left side wall of pressure chamber 101 is connect by flanged joint lid 203 with pedestal.The right side wall of pressure chamber 101
It is connect by flange with pedestal.The drain plug being connected to the pressure chamber 101 is additionally provided on the right side wall of pressure chamber 101
107。
Test chamber 102 is located in pressure chamber 101.Test chamber 102 includes the rigid bucket 108 positioned at outside (for example, by steel knot
It is configured to) and elastic bucket 109 (for example, being made of high deformable metal) positioned inside.Wherein, rigid bucket 108 is solid by pin
It is scheduled on the side wall of pressure chamber 101.It is elastic that bucket 109 can radially deformation occurs.
The right side of elastic bucket 109 is provided with water conservancy diversion plug 104.Rock can be placed on water conservancy diversion plug 104, and position
In in elastic bucket 109.The diversion pipe being connected to elastic bucket 109 is provided on the water conservancy diversion plug 104 and the side wall.It is described to lead
Flow tube the fluid in elastic bucket 109 can be discharged.
Shown in referring to Fig.1, the Bit andits control mechanism 103 can the relatively described rigid bucket 108 move radially, the displacement
One end of control mechanism 103 is located in the pressure chamber 101, and the other end of the Bit andits control mechanism 103 is arranged in the bullet
On property bucket 109.Fluid in pressure chamber 101 can be radial to generate to elastic bucket 109 by Bit andits control mechanism 103
Active force, to make the deformation of the elastic generation of bucket 109 radially.The Bit andits control mechanism 103 further includes that can detect elastic bucket
109 displacement sensors that radially deformation occurs measures.
Referring to shown in Fig. 2 and Fig. 3, the axial thrust mechanism 2 includes axial loading device 201, can add with the axial direction
The distance rod setting 201 transmission connections and being threaded through on the lid 203 is carried, the distance rod is located in the autoclave pressure 1
One end is fixedly installed the seal cover board 207 with the lid 203 sealing, and the deflector includes seepage flow plug 204 and seeps
Flow connector.Seepage flow connector 206 is bolted in seepage flow plug 204, and seepage flow connector 206 is bolted on seal cover board
On 207.The sealing device 202 that lid 203 can be made to seal is provided on the distance rod.
Seepage flow connector 206 can cooperate with the left side of pressure chamber 101 to be sealed, and seepage flow plug 204 can be with the left side of elastic bucket 109
Sealing cooperation.The seepage flow connector 206 is provided with multiple diversion trenches along the circumferential direction arranged towards the side of rock at it, respectively
A diversion trench is connected to seepage channel 208.The seepage channel 208 be connected to elastic 109 inner cavity of bucket, the diversion trench and
Pressure chamber 101 is connected to.The distance rod of the axial thrust mechanism 2 autoclave pressure 1 can move relatively, make the pressure chamber 101
It is connected to the elastic bucket 109.
Shown in referring to Fig.1, in the present embodiment, the temperature control device 5 may include from the water conservancy diversion plug 104
Heater 110, temperature sensor, temperature indicator, signal output interface 303, resistance control valve for extending to the left etc..It can pass through
Resistance control valve is adjusted, the temperature of 109 internal flow of elastic bucket is controlled.The temperature control device 5 of the embodiment of the present application further includes
The temperature sensor being installed in the seepage channel 208 of axial thrust mechanism 2.Control unit 6 respectively with signal output interface
303 connect with temperature indicator, and control resistance controls valve position, adjust the size of adding thermal resistance, storage temperature data, display is worked as
Preceding temperature value.
In the present embodiment, the seepage flow plug 204 is provided with protective cover 209 in the side that it deviates from rock, described
Protective cover 209 is located at outside the infrared survey mechanism 3.Chamber is formed between the water conservancy diversion plug 104 and the side wall, it is described
Infrared survey mechanism 3 is arranged in the chamber.
Shown in referring to Fig.1, the right side of the first transmittance section 105 is arranged in the first probe 106.Second probe, 301 setting is the
The left side of two transmittance sections 205.Wherein, the first probe 106 and the second probe 301 are transversely correspondingly arranged.In the present embodiment,
First probe 106 and the second probe 301 are respectively four.Of course, in other optional embodiments, the first 106 Hes of probe
The quantity of second probe 301 can correspond to a for other.
Shown in referring to figure 6 and figure 7, the infrared survey mechanism 3 further includes guiding mechanism 4, and guiding mechanism 4 includes guide rail
402, it can be movably arranged at probe clamping device 403 on the guide rail 402 along the extending direction of guide rail 402, there is output
The motor 404 of axis, probe clamping device 403 can clamp the first probe 106 or the second probe 301, the output shaft of motor 404
It can be engaged with probe clamping device 403 by gear drive 405, to drive the first probe 106 or the second probe 301
It is moved along guide rail 402.Preferably, each guide rail 402 can be set on a support 401 in a ring, consequently facilitating
It installs and fixed.
The embodiment of the present application further includes control unit 6, and described control unit 6 is used for axial thrust mechanism 2, Bit andits control
Mechanism 103, temperature control device 5, infrared survey mechanism 3 are controlled.Specifically, described control unit 6 is received including signal
And chunking, computer, processing software are converted, temperature, pressure, displacement, infrared probe measurement and control in implementable test process.
It the purpose of this utility model and solves its technical problem following technical measures can be used to further realize.
Wherein, test probe radial displacement control device branch is in rock mechanics pressure chamber 101 and axial thrust mechanism 2
Interior, synchronous shift, each test probe radial displacement occur for the gear train assembly in test probe radial displacement control device
4 (being not limited to 4) infrared probes are installed on control device.
Wherein, entire test device is sealing container, and medium is not limited to water in fluid reservoir.
The utility model is achieved through the following technical solutions:
A kind of caving pressure test method for testing rock under different temperatures variation, the steps include:
Step 1: wellbore rock is fabricated to annular shape according to the installation dimension of test chamber 102, is installed in test chamber 102
Portion, 102 bottom end of test chamber are equipped with glass film plates, seepage flow plug 204, test probe radial displacement control device, infrared ray and connect
Receive probe and heating system；2 lower end of axial thrust mechanism is equipped with seepage flow plug 204 and glass cover-plate, infrared ray transmitting probe
Radial displacement control device, infrared ray transmitting probe and temperature test probe be fixed on glass cover-plate and lid 203 form it is close
It seals in region；Test probe radial displacement control device can realize infrared ray test probe along 101 radial direction of rock pressure chamber
Mobile, test probe radial displacement control device is bolted with infrared ray testing pressure head；Axial thrust mechanism 2 can apply
Axial thrust, and generate axial displacement；Test chamber 102 uses expanding material, 101 fluid pressure of pressure chamber can be transmitted, to test
Chamber 102 generates axial compressive force；
Step 2: the position of adjustment infrared ray transmitting probe and receiving transducer meets the infrared of infrared ray transmitting probe sending
Line beam can be close to wellbore rock inner ring wall surface, and not stopped, and infrared receiver probe can clearly receive signal；
Step 3: adjustment temperature test and control device, heating liquid storage pot liquid reach predetermined temperature value, record test
The radial position X1 that probe radial displacement control device is shown；
Step 4: wellbore rock carries out blower operations, liquid is pumped into drain plug 107 by liquid feeding pump, by pressure chamber
Pressure increases to predetermined pressure in 101, reaches equilibrium temperature to the temperature test probe in lid 203, record test probe is radial
The radial position X2 that displacement control device is shown；
Step 5: adjusting the internal heater 110 inside Rock Mechanics Test machine pressure chamber 101 and heat interior media, make to survey
Temperature reaches predetermined temperature T1 in examination chamber 102, and in the whole process, infrared ray transmitting probe is swashed with the time interval excitation cycle T
Hair, temperature increase wellbore rock and undergauge occur, and infrared receiver probe is blocked no signal, and upper and lower two cavity seals in pressure head
Test probe radial displacement control device occurs automatic adjustment and is adjusted in synchronism, each moving displacement mobile to wellbore center position
Δ S, after I time is mobile, infrared receiver probe receives infrared signal, stops movement, record displacement S1=I Δ S；After
Continuous heating, same record displacement S2, S3 ..., SN。
Test procedure provided in this embodiment is as follows:
(1) wellbore rock is fabricated to the ring structure of wellbore according to testing requirement, is put into rock pressure chamber 101.
(2) heating furnace will be adjusted, medium in outlet tube is heated and opens confining pressure feed liquor system to set temperature.
(3) it is visited by infrared ray on the synchronous acquisition of data and processing system adjustment test probe radial displacement control device
The position of head guarantees that infrared-ray is not stopped by rock side wall, and is close to rock side wall, records probe positions.
(4) it pressurizes.
(5) equally, the position of infrared probe is adjusted, guarantees that infrared-ray is not stopped by rock side wall, and be close to rock
Side wall records probe positions.
(6) it is heated.
(7) equally, the position of infrared probe is adjusted, guarantees that infrared-ray is not stopped by rock side wall, and be close to rock
Side wall records probe positions.
(8) it after testing, drains the oil.
(9) triaxial chamber is opened, device is taken out into testing stand, engineering liquid is discharged.
Referring to shown in Fig. 8, the advantages of the utility model: making up existing rock mechanics test device and be unable to measure rock
Alternating temperature fills up the blank of the borehole collapse pressure test of horizontal well to the deficiency of intensity effect, and a kind of test rock is researched and developed in innovation
Caving pressure test device under different temperatures variation, influence of the test temperature to high pressure rock strength, especially to level
The influence of the wellbore rock fall pressure of well, so predict and evaluation underground wall strength, be oil/gas deep well, ultradeep well and
The wellbore stability prediction of high temperature well, which provides, instructs foundation.The technology can the test of monitoring well eye surrounding rock uniaxial loading, rock three
Mechanics and displacement information in the test such as axis mechanical test, creep of rock mechanical test, rock temperature varying stress load test.
The utility model can be adapted for the Simultaneous Monitoring of rock fall pressure under temperature constant state, while be suitable for drilling well well
Caving pressure synchro measure of the eye surrounding rock under different temperatures and pressure environment, while being suitable for different well type (straight well, water
Horizontal well, directional well) caving pressure synchro measure of the wellbore rock under different temperatures and pressure environment, it is able to solve high temperature
The stability prediction of well-drilling borehole under high pressure conditions.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (9)
1. a kind of horizontal well wellbore caving pressure test device characterized by comprising
Autoclave pressure, the autoclave pressure include horizontally extending pressure chamber and horizontally extending test chamber, institute
Stating test chamber includes rigid bucket in the pressure chamber and in the rigid bucket and can radially deformation occurs
Elastic bucket；
Water conservancy diversion plug, the right side in the elastic bucket is arranged in the water conservancy diversion plug, for rock accommodating, the water conservancy diversion plug tool
There is the first transmittance section；
Axial thrust mechanism, the relatively described water conservancy diversion plug of the axial thrust mechanism are located at the right side of rock, the axial thrust
Mechanism can autoclave pressure movement relatively, one end that the axial thrust mechanism is located in autoclave pressure is provided with can be with the pressure
The deflector of chamber and test chamber engagement, the deflector include that can connect at it with the pressure chamber and the test chamber
The seepage channel that will be connected between the pressure chamber and the elastic bucket when conjunction, the deflector have the second transmittance section；
Bit andits control mechanism, the Bit andits control mechanism can the relatively described rigid bucket edge transverse shifting, the Bit andits control mechanism
One end be located in the pressure chamber, the setting of the other end of the Bit andits control mechanism is on the elastic bucket；
Temperature control device, the temperature control device are used to control the temperature in the elastic bucket；
Infrared survey mechanism, the infrared survey mechanism include the first probe and the setting being arranged on the right side of first transmittance section
On the left of second transmittance section and with first probe transversely corresponding second probe, first probe and described the
Two probes can move synchronously in the horizontal direction；
Guiding mechanism, guiding mechanism includes guide rail, the probe that can be movably arranged at along the extending direction of guide rail on the guide rail
Clamping device, the motor with output shaft, the probe clamping device is for clamping the first probe or the second probe, the motor
Output shaft with probe clamping mechanism driving connect.
2. horizontal well wellbore caving pressure test device according to claim 1, which is characterized in that the autoclave pressure includes
Outer cover, the axial thrust mechanism include axial loading device, can be sequentially connected with the axial loading device and be threaded through institute
The distance rod covered outside is stated, one end that the distance rod is located in the autoclave pressure is fixedly installed close with outer cover sealing
Plate is covered, the deflector includes the seepage flow plug that can match with the elastic bucket merge with seepage channel, is arranged described
Seepage flow connector on seepage flow plug, the diversion trench of the seepage flow connector are connected to the seepage channel of the seepage flow plug, the infiltration
Circulation road is connected to elastic barrel cavity, and the diversion trench is connected to pressure chamber.
3. horizontal well wellbore caving pressure test device according to claim 2, which is characterized in that the seepage flow plug exists
It is provided with protective cover away from the side of rock, and the protective cover is located at first probe or the second probe is outer.
4. horizontal well wellbore caving pressure test device according to claim 1, characterized in that it comprises: diversion pipe；
The pressure chamber has side wall, is provided with the drain plug being connected to the pressure chamber on the side wall, the diversion pipe is threaded through
On the side wall.
5. horizontal well wellbore caving pressure test device according to claim 1, which is characterized in that the temperature controller
Structure includes the heater extended to the left from the water conservancy diversion plug.
6. horizontal well wellbore caving pressure test device according to claim 4, which is characterized in that the water conservancy diversion plug with
There is sealed chamber, first probe or the second probe are arranged in the sealed chamber between the side wall.
7. horizontal well wellbore caving pressure test device according to claim 2, which is characterized in that the seepage flow connector exists
It is provided with multiple diversion trenches along the circumferential direction arranged towards the side of rock, and each diversion trench and seepage channel connect
It is logical.
8. horizontal well wellbore caving pressure test device according to claim 1, which is characterized in that including control unit,
Described control unit is for controlling axial thrust mechanism, Bit andits control mechanism, temperature control device, infrared survey mechanism
System.
9. horizontal well wellbore caving pressure test device according to claim 2, which is characterized in that second transmittance section
It is radially positioned between the seepage flow plug and the seepage flow connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596336.2U CN208777985U (en) | 2018-04-25 | 2018-04-25 | Horizontal well wellbore caving pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596336.2U CN208777985U (en) | 2018-04-25 | 2018-04-25 | Horizontal well wellbore caving pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208777985U true CN208777985U (en) | 2019-04-23 |
Family
ID=66141083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820596336.2U Withdrawn - After Issue CN208777985U (en) | 2018-04-25 | 2018-04-25 | Horizontal well wellbore caving pressure test device |
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| Country | Link |
|---|---|
| CN (1) | CN208777985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386184A (en) * | 2018-04-25 | 2018-08-10 | 中国石油大学(北京) | Horizontal well wellbore caving pressure test device |
-
2018
- 2018-04-25 CN CN201820596336.2U patent/CN208777985U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386184A (en) * | 2018-04-25 | 2018-08-10 | 中国石油大学(北京) | Horizontal well wellbore caving pressure test device |
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