CN109854569A - A kind of test device of rotary steerable tool hydraulic control system - Google Patents
A kind of test device of rotary steerable tool hydraulic control system Download PDFInfo
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- CN109854569A CN109854569A CN201910087820.1A CN201910087820A CN109854569A CN 109854569 A CN109854569 A CN 109854569A CN 201910087820 A CN201910087820 A CN 201910087820A CN 109854569 A CN109854569 A CN 109854569A
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Abstract
This application discloses a kind of test devices of rotary steerable tool hydraulic control system, wherein, hydraulic control system includes electric machine assembly, assembly of the plunger pump and control valve group, the test device includes test barrel, pressure detecting assembly and control assembly, chamber resettling is formed in test barrel, chamber resettling is for being fixedly mounted hydraulic control system；The oil inlet, oil return opening and pressure tap being connected to chamber resettling are additionally provided in test barrel, pressure tap is connected to the pressure output of hydraulic control system；Pressure detecting assembly is arranged at pressure tap, for detecting the output pressure of hydraulic control system；Control assembly is used to be electrically connected with electric machine assembly, and detects and controls the revolving speed of electric machine assembly.The application can integrally carry out testing performance index to hydraulic control system, and test result is close to real work situation, accurately and reliably, and structure is simple, and it is easy to use, it is time saving and energy saving, testing efficiency is high, provides means of testing for the real marketization application of hydraulic control system.
Description
Technical field
The application belongs to petroleum drilling technology field more particularly to a kind of test of rotary steerable tool hydraulic control system
Device.
Background technique
Rotary steerable drilling technology is to carry out steerable drilling under conditions of drill string full rotation, is installed above drill bit controllable
The rotary steerable tool of offset stabilizer or controllable bit side force (guiding force), and it is furnished with complete rotary steerable drilling control
System processed, a technology of wellbore trajectory can be regulated and controled when drill string rotating is crept into.It is bored using rotary steerable drilling technology
When well operations, three dimensional hole trajectory control can be realized by not needing frequently to make a trip, and, extension more smooth with well track
The bigger advantage of distance to guarantee well track quality, raising bit speed and efficiency, meets the needs of boring complex structural well all
It is significant.
Rotary steerable tool integrates mechanical, electrical, liquid, can be divided into slurry power driving according to executing agency's driving method
With motor-pump hydraulic system driving method.Such as the POWER DRIVE series of Schlumberger is that typical slurry power is straight
Driving method is connect, directly generates bit side force using slurry power, but there are hydraulic shock phenomenons；And such as Bake Hughes
The static pushing type rotary steerable tool of Auto Trak series of company is then to use motor-pump hydraulic system driving method, excellent
Point is to generate static bias force, hydraulic shock phenomenon is not present, it is easier to form downhole closed loop.
Currently, rotary steerable tool has become the pass for restricting the technical fields such as the exploitation of China's Deep Oil And Gas Exploration and shale gas exploitation
Key technology, studies in China mechanism have carried out the research of rotary steerable tool, although in principle all on the basis of foreign technology
It is able to achieve directed drilling and orientation adjustment, but due to lacking sufficient experimental study, many key technologies can not still be broken through.Its
In, rotary steerable tool hydraulic control system is the core institution of rotary steerable tool, the control precision of hydraulic control system and
Reliability directly determines the Performance And Reliability of rotary steerable tool.In order to promote the fast development of rotary steerable tool, need
The test device of rotary steerable tool hydraulic control system, by carrying out the hydraulic control of rotary steerable tool in surface condition Imitating
The testing performance index of system processed greatly improves the reliability and the market competitiveness of rotary steerable tool, is rotary steerable tool
The real marketization application of hydraulic control system provides means of testing.
But existing rotary steerable tool test device, performance is integrally usually carried out to rotary steerable tool model machine
Test, is more nearly the real work situation of rotary steerable tool；But it needs before testing to be installed to hydraulic control system
In model machine, installation is more troublesome, and when the testing performance index of rotary steerable tool is unsatisfactory for requiring, it is also necessary to each portion
Part carries out dismounting and change adjustment, time-consuming and laborious, larger workload.Also the test device having pacifies each component of hydraulic control system
It, being capable of critical component (such as plunger to hydraulic control system by piping connection between each component on testboard bay
Pump) carry out Function detection and Performance Evaluation；But these test devices do not account for hydraulic control system because oil circuit becomes
Change and generate flow resistance variation, cause test result and in actual use the case where there are deviation, practicability is lower.
It should be noted that above content belongs to the technology category of cognition of inventor, the prior art is not necessarily constituted.
Summary of the invention
To solve the above-mentioned problems, the purpose of the application is to provide a kind of test of rotary steerable tool hydraulic control system
Device proposes corresponding ground test device for motor-pump hydraulic control system in static pushing type rotary steerable tool,
It can be used to carry out testing performance index to rotary steerable tool hydraulic control system, structure is simple, easy to use, test result
Practical close to real work situation, for hydraulic control system, really marketization application provides means of testing.
To achieve the above object, present applicant proposes a kind of test device of rotary steerable tool hydraulic control system, institutes
Stating hydraulic control system includes electric machine assembly, assembly of the plunger pump and control valve group, which is characterized in that the test device packet
Include: test barrel is formed with chamber resettling in the test barrel, and the chamber resettling is for being fixedly mounted the hydraulic control system
System；Be additionally provided with the oil inlet, oil return opening and pressure tap being connected to the chamber resettling in the test barrel, the pressure tap with
The pressure output of the hydraulic control system is connected to；Pressure detecting assembly, the pressure detecting assembly setting are pressed in the survey
At mouthful, for detecting the output pressure of the hydraulic control system；And control assembly, the control assembly are used for and the electricity
Thermomechanical components electrical connection, and detect and control the revolving speed of the electric machine assembly.
In one example, the test device further includes high temperature test component, and the test barrel can be packed into the height
In warm test suite, to test hydraulic control system performance indicator in a high temperauture environment；Wherein, the hot environment is
Refer to that temperature is higher than 150 DEG C of environment.
In one example, the test device further includes vibration test component, and the test barrel can be mounted on described
On vibration test component, to test performance indicator of the hydraulic control system under vibration environment.
In one example, the test device further includes flow detection component, and the flow detection component is arranged in institute
It states at oil return opening, for detecting the flow of the oil return opening.
In one example, the test device includes test barrel described at least three, and all test barrels share one
Cover the control assembly.
In one example, the test device further includes four-way component, and the four-way component is connect with the pressure tap,
The pressure detecting assembly is mounted on the four-way component；The test device further includes pressure detecting and display component, institute
It states pressure detecting and display component is mounted on the four-way component.
In one example, the test barrel includes sequentially connected gland, motor pump block, valve seat set and oil return set, institute
It states gland, the motor pump block, valve seat set and oil return set and surrounds the chamber resettling jointly；The electric-motor pump is put on
The oil inlet is opened up, the oil return, which is put on, opens up the oil return opening, and the valve seat, which is put on, opens up the pressure tap；The motor
Component and the assembly of the plunger pump are mounted in the motor pump block, and the control valve group is mounted on valve seat set and described
In oil return set.
In one example, between the gland and the motor pump block, between the motor pump block and the valve seat set,
Seal member is provided between the valve seat set and oil return set.
In one example, the test device further includes pilot seal connector, and the pilot seal connector passes through
The electric machine assembly and the control assembly are electrically connected by the gland.
In one example, the pilot seal connector is multicore pressure bearing and seal connector.
A kind of test device of the rotary steerable tool hydraulic control system proposed by the application can be brought to be had as follows
Beneficial effect:
1. can integrally carry out testing performance index, hydraulic control system to hydraulic control system by setting test barrel
Close to closer to real work situation, the testing performance index result of hydraulic control system is also more nearly internal flow resistance
Real work situation, more accurately and reliably；Avoid the being dismounted for multiple times of hydraulic control system and rotary steerable tool, time saving province
Power, testing efficiency are high；And the structure of test device is simple, and it is easy to use, it is the real marketization application of hydraulic control system
Means of testing is provided, it is practical.
2. test barrel is integrally fitted into high temperature test component by setting high temperature test component, hydraulic control can be tested
System performance indicator in a high temperauture environment, fully considers the practical situations of hydraulic control system, meets practical application need
It asks, practicability is stronger.
3. by setting at least three test barrel performance indicator survey can be carried out at least 3 sets of hydraulic control systems simultaneously
Examination improves testing efficiency, fully considers the practical situations of hydraulic control system, meets practical application request, practicability compared with
By force.
4., can be with the output pressure of real-time detection and display hydraulic control system by setting pressure detecting and display component
Power, the situation of change of the convenient output pressure value for directly observing hydraulic control system in real time.
It, can will be in test barrel 5. be electrically connected electric machine assembly and control assembly by multicore pressure bearing and seal connector
Portion's oil circuit is physically separated with external environment, prevents interference of the external environment to test result, and test result more accurately may be used
It leans on.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is that a kind of structure of the test device of rotary steerable tool hydraulic control system provided by the embodiments of the present application is shown
It is intended to.
Specific embodiment
For the clearer general idea for illustrating the application, carry out in an illustrative manner with reference to the accompanying drawings of the specification detailed
It describes in detail bright.
For the clearer general idea for illustrating the application, carry out in an illustrative manner with reference to the accompanying drawings of the specification detailed
It describes in detail bright.
In the description of the present application, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or position of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the application and simplifies description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present application, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application 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；It can be mechanical connect
It connects, is also possible to be electrically connected, can also be communication；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.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in this application as the case may be.
In this application, it can be in the second feature " on " or " down " with restriction, fisrt feature unless otherwise expressly provided
First and second features directly contact or the first and second features pass through intermediary mediate contact.In the description of this specification
In, the description of reference term " scheme ", " some schemes ", " example ", " specific example " or " some examples " etc. means to tie
It closes the program or example particular features, structures, materials, or characteristics described is contained at least one scheme of the application or shows
In example.In the present specification, schematic expression of the above terms are necessarily directed to identical scheme or example.Moreover,
Particular features, structures, materials, or characteristics described can be tied in an appropriate manner in any one or more schemes or example
It closes.
As shown in Figure 1, embodiments herein proposes a kind of test device of rotary steerable tool hydraulic control system
100 comprising test barrel 1, pressure detecting assembly 2, control assembly (not shown), crossover sub 3 and oil return pipe assembly 4.
Wherein, chamber resettling is formed in test barrel 1, chamber resettling is used to be fixedly mounted the hydraulic control system of rotary steerable tool
200；The oil inlet 11, oil return opening 12 and pressure tap 13 being connected to chamber resettling are additionally provided in test barrel 1, test barrel 1 passes through
Oil inlet 11 and oil return opening 12 and external oil circuit connection, pressure tap 13 are connected to the pressure output of hydraulic control system 200.
Pressure detecting assembly 2 is arranged at pressure tap 13, the output pressure of the pressure output for detecting hydraulic control system 200；
Pressure detecting assembly 2 can be pressure sensor.Control assembly is used for electrical with the electric machine assembly 201 of hydraulic control system 200
Connection, and detect and control the revolving speed of electric machine assembly 201.Oil inlet 11 is by crossover sub 3 and external high pressure oil sources (in figure
It is not shown) it is connected, crossover sub 3 is the hydraulic oil inlet of entire test device 100, can effectively solve external high pressure oil sources and go out
The mouth skimble-scamble problem of interface；And crossover sub 3 is used as vulnerable part, after being connected with test device 100 under normal circumstances not more
It changes, as a part of test device 100, for frequently with the connection and disassembly of external high pressure oil sources, avoiding oil inlet 11 straight
The damage for frequently connecting with external high pressure oil sources and may cause oil inlet 11 is connect, crossover sub 3 is readily replaceable when damaging, and effectively prolongs
Long 100 service life of test device.Oil return opening 12 is connected by oil return pipe assembly 4 with outer low pressure oil sources (not shown),
Low pressure oil sources can be fuel tank；Oil return pipe assembly 4 is the hydraulic oil outlet of entire test device 100, equally can solve outside
The skimble-scamble problem of low pressure oil source interface, and it is readily replaceable, avoid the damage of oil return opening 12, effective extended testing system device 100
Service life.
Hydraulic control system 200 is the core component of rotary steerable tool comprising sequentially connected electric machine assembly 201,
Assembly of the plunger pump 202 and control valve group 203, electric machine assembly 201 drive assembly of the plunger pump 202 to work, assembly of the plunger pump 202
Hydraulic oil is pumped into control valve group 203；Control valve group 203 includes higher-pressure region, throttle valve and safety valve, control valve group
203 also have the pressure output being connected to higher-pressure region, and safety valve can be overflow valve.When hydraulic control system 200 works, electricity
Thermomechanical components 201 start work, and driving assembly of the plunger pump 202 acts, hydraulic oil is pumped into control valve group 203；Hydraulic oil into
After entering control valve group 203, a part enters the higher-pressure region of control valve group 203, makes the pressure rise of higher-pressure region, pressure output
The output pressure of mouth also increases, and remainder then passes through throttle valve and control valve group 203 is discharged.The revolving speed control of electric machine assembly 201
The output pressure of pressing pressure delivery outlet, as the revolving speed of electric machine assembly 201 increases, assembly of the plunger pump 202 is pumped into control valve group
Hydraulic oil in 203 increases, the pressure rise of higher-pressure region, and the output pressure of pressure output increases.Safety valve is for setting height
The maximum pressure of pressure area guarantees the safe and reliable work of hydraulic control system 200, and arranged at safety valve is in normally off；When motor group
The revolving speed of part 201 continues to increase, and when the pressure of higher-pressure region being made to reach maximum pressure, safety valve is opened, will be extra in higher-pressure region
Hydraulic oil be discharged control valve group 203, when the revolving speed of electric machine assembly 201 continues growing at this time, the output pressure of pressure output
Power remains unchanged, and the output pressure of pressure output reaches maximum output pressure.Rotary steerable tool relies on hydraulic control system
200 output pressure generates biasing thrust, to regulate and control wellbore trajectory when drill string rotating is crept into；The maximum of rotary steerable tool is partially
Set that thrust is corresponding with the maximum output pressure of hydraulic control system 200, and can wellbore trajectory when drill string rotating is crept into
Wellbore desired guiding trajectory is consistent, then directly related with the biasing control precision of thrust.Therefore, the performance of hydraulic control system 200 refers to
Mark mainly includes the revolving speed of electric machine assembly 201 and corresponding relationship, maximum output pressure, the assembly of the plunger pump 202 of output pressure
Discharge capacity and volumetric efficiency, output pressure control precision etc..
Flow behavior in hydraulic control system 200 is directly related with pressure, and in pressure and hydraulic control system 200
The flow resistance of runner is related, just as voltage is as the relationship of resistance.The test device 100 of the application when in use, first
By the core component (electric machine assembly 201, assembly of the plunger pump 202 and control valve group 203) of hydraulic control system 200 according to reality
Use state is linked and packed into hydraulic control system 200, and then whole be fitted into test barrel 1 carries out testing performance index, saves
Lesser external module is influenced on flow resistance, pressure output is connected with pressure tap 13, and pressure detecting assembly 2 is mounted on survey
It presses at mouth 13, control assembly and electric machine assembly 201 are electrically connected, and oil inlet 11 is connect with high pressure fuel source, oil outlet 12 and low pressure
Oil sources connection, hydraulic control system 200 is whole to be immersed in hydraulic oil environment；1 internal hydraulic pressure oil circuit of test barrel and external environment
Physical isolation, provides simulated environment as true as possible, and hydraulic control system 200 is also mounted in one and survey in practical model machine
In the closed ram pot for trying the identical size of cylinder 1, to simulate work feelings of the hydraulic control system 200 under actual well drilled environment
Condition guarantees that the oil circuit in hydraulic control system 200 is consistent with oil circuit in actual use, the flowing in hydraulic control system 200
Resistance is closer to real work situation, and the flow behavior in hydraulic control system 200 is also close to truth, to hydraulic control system
The testing performance index result of system 200 is close to real work situation, more accurately and reliably.Meanwhile to hydraulic control system 200
Nuclear structure integrally carry out testing performance index, when test, which obtains the performance indicator of hydraulic control system 200, to be met the requirements,
Hydraulic control system 200 can integrally be fitted into rotary steerable tool and direct plunge into production and application, avoid to rotary steering work
Being dismounted for multiple times when tool model machine is tested, it is time saving and energy saving, it is practical, it is the really marketization application of hydraulic control system 200
Means of testing is provided.And test device 100 is directed to motor-pump hydraulic control system in static pushing type rotary steerable tool
System 200 proposes corresponding ground test device, can be used to carry out performance to the hydraulic control system 200 of rotary steerable tool to refer to
Mapping examination, structure is simple, easy disassembly, and test result is practical close to real work situation, is hydraulic control system
200 is really market-oriented using offer means of testing.
The test device 100 of the application directly can carry out open-loop test to hydraulic control system 200: pass through control assembly
The revolving speed for detecting and controlling electric machine assembly 201, by oil inlet 11 into test barrel 1 fuel feeding, control valve group 203 be discharged portion
Liquid separation pressure oil is flowed back into fuel tank by oil return opening 12 and is recycled with realizing, while detecting pressure by pressure detecting assembly 2
The output pressure of delivery outlet, to obtain the corresponding relationship between the revolving speed and output pressure of electric machine assembly 201；Pass through control
The revolving speed of component control electric machine assembly 201 continues to increase, until output pressure that pressure detecting assembly 2 detects be not further added by for
Only, the maximum output pressure of hydraulic control system 200 is obtained at this time.
Test device 100 can also carry out closed loop test to hydraulic control system 200, to determine hydraulic control system 200
Output pressure control precision: setting desired output pressure；Pressure detecting assembly 2 and control assembly are electrically connected, pressure inspection
Component 2 is surveyed to acquire the output pressure of hydraulic control system 200 in real time and feed back to control assembly；Control assembly is according to current output
Pressure value information and desired output pressure value information calculate suitable 201 revolving speed of electric machine assembly, then pass through control assembly control
The revolving speed of electric machine assembly 201 processed and then the output pressure value for controlling hydraulic control system 200 form a complete closed-loop control
System.Deviation between finally obtained reality output pressure and desired output pressure is smaller, then hydraulic control system 200 is defeated
Pressure controling precision is higher out；Test device 100 can test whether hydraulic control system 200 meets output pressure control precision
It is required that the output pressure control accuracy requirement of general hydraulic control system 200 is 10MPa ± 0.3MPa, i.e., error is no more than
3%.
Specifically, rotary steerable tool may work in the high temperature environment, and hot environment here refers to that temperature is higher than 150
DEG C environment；The viscosity of hydraulic oil is directly related with temperature, and when the temperature increases, the viscosity of hydraulic oil declines, Xiang Tongliu
The pressure that hydraulic oil under amount generates reduces；Meanwhile the working performance of pressure detecting assembly 2, electric machine assembly 201 also will receive temperature
The influence of degree.
Test device 100 further includes high temperature test component (not shown), and high temperature test component can simulate high temperature ring
Border；For example, high temperature test component can be high-temperature cabinet etc..The compact of test barrel 1 is easy installation, can integrally be packed into height
In warm test suite, simulation site work environment, and the master for the hydraulic control system 200 being mounted in test barrel 1 as far as possible
Want component identical as in true engineering prototype, it is easier to the whole environmental suitability of hydraulic control system 200 is tested, with test
The performance indicator in a high temperauture environment of hydraulic control system 200, fully considers the practical situations of hydraulic control system 200,
Practicability is stronger, and for hydraulic control system 200, really marketization application provides means of testing.
Specifically, rotary steerable tool may also work in vibration environment, and vibration can be to control assembly and electric machine assembly
The bonding strength of part has an impact in 201 circuit and hydraulic control system 200.
Test device 100 further includes vibration test component (not shown), and vibration test component can simulate vibration ring
Border；For example, vibration test component can be vibration test platform.The compact of test barrel 1 is easy installation, being capable of integral installation
On vibration test component, simulation site work environment, and the hydraulic control system 200 being mounted in test barrel 1 as far as possible
Main component it is identical as in true engineering prototype, it is easier to test the whole environmental suitability of hydraulic control system 200, with
Performance indicator of the hydraulic control system 200 under vibration environment is tested, fully considers the practical application feelings of hydraulic control system 200
Condition, practicability is stronger, and for hydraulic control system 200, really marketization application provides means of testing.
It specifically, further include flow detection component (not shown), flow detection component is arranged at oil return opening 12, uses
In the flow of detection oil return opening 12.The discharge capacity that assembly of the plunger pump 202 can be conversed according to the flow of oil return opening 12 passes through control
Component detection and the revolving speed for controlling electric machine assembly 201, to obtain assembly of the plunger pump 202 in different 201 revolving speed items of electric machine assembly
Discharge characteristic and volumetric efficiency under part.Flow detection component can be the sensor elements such as flowmeter.
Specifically, a set of rotary steerable tool generally includes at least 3 sets of hydraulic control systems 200, and all hydraulic controls
System 200 is interrelated, and each hydraulic control system 200 is worked in coordination to control the deflection of rotary steerable tool, and each hydraulic control
It is also possible to generate between system 200 processed and interfere with each other.Test device 100 includes at least three test barrel 1, can be simultaneously at least 3
It covers independent hydraulic control system 200 and carries out testing performance index, improve testing efficiency；And all test barrels 1 share outside one
Portion's high pressure fuel source also shares a set of control assembly, so as to realize the synchronism detection of at least 3 sets hydraulic control systems 200, fills
Divide the practical situations for considering hydraulic control system 200, practicability is stronger, answers for the real marketization of hydraulic control system 200
With offer means of testing.
It specifically, further include four-way component 5, pressure tapping 6 and pressure detecting and display component (not shown), four
Logical component 5 is connect with pressure tap 13, and multiple test mouths 51 are provided on four-way component 5；Pressure detecting assembly 2 and pressure tapping
6 are separately mounted in one of test mouth 51 on four-way component 5, to realize the Multi-path synchronous inspection of 13 pressure of pressure tap
It surveys, testing efficiency is higher, and multiple functions may be implemented.Pressure gauge pad 61, pressure tapping are provided in pressure tapping 6
6 can be vibration-proof pressure gauge connector.Pressure detecting and display component are mounted in pressure tapping 6, can also be directly installed on
On four-way component 5；Pressure detecting and display component can be vibration-proof pressure gauge, vibration-proof pressure gauge can using digital display manometer or
Person's standard machinery formula vibration-proof pressure gauge, it is convenient directly real for the output pressure of real-time detection and display hydraulic control system 200
When observe hydraulic control system 200 output pressure value, controlled volume can be directly observed, convenient for the control of intuitive judgment system
Effect, i.e. pressure closed loop control effect.
It can also include plug screw 7, plug screw 7 may be mounted in any test mouth 51 of four-way component 5, block the test mouth
51 when needing using the test mouth 51, then to remove plug screw 7 and change corresponding pressure or other types biography into as spare mouth
Sensor.And 1 entirety of test barrel is placed into test hydraulic control system 200 in hot environment, performance refers in a high temperauture environment
When mark, pressure tapping 6 can also be changed into plug screw 7, pressure gauge can be damaged to avoid hot environment.
Specifically, test barrel 1 includes sequentially connected gland 14, motor pump block 15, valve seat set 16 and oil return set 17, and electric
Pump set 15 and valve seat set 16, valve seat set 16 and oil return set 17 between is fastenedly connected by screw, gland 14, motor pump block 15,
Valve seat set 16 and oil return set 17 surround closed chamber resettling jointly.Oil inlet 11 is opened up on motor pump block 15, oil return covers on 17
Oil outlet 12 is opened up, opens up pressure tap 14 on valve seat set 16；Electric machine assembly 201 and assembly of the plunger pump 202 are mounted on motor pump block
In 15, control valve group 203 is mounted in valve seat set 16 and oil return set 17, and valve seat set 16 is threadedly coupled with four-way component 5.Test
Cylinder 1 further includes support member 18, and support member 18 is fixedly connected with valve seat set 16, fixed test barrel 1 is used to support, convenient for placing
A whole set of test device, support member 18 are near high pressure oil area, so that 1 thickness of shell of test barrel is thicker at this, increase survey
Try the intensity of cylinder 1；Support member 18 can be support plate.The structure of test barrel 1 is simple, and manufacture and use are convenient, hydraulic control
The installation and removal of system 200 are convenient and efficient, time saving and energy saving, and testing efficiency is high.
Specifically, between gland 14 and motor pump block 15, between motor pump block 15 and valve seat set 16, valve seat set 16 and oil return
It is provided with seal member 8 between set 17, for sealing off with extraneous the inside of test barrel 1, to test barrel 1 when facilitating test
Inside filling hydraulic oil；Seal member 8 can be O-ring, be also possible to other types of sealing element.
Specifically, further include pilot seal connector 9, pilot seal connector 9 pass through gland 14 by electric machine assembly 201 with
Control assembly electrical connection.Pilot seal connector 9 can be multicore pressure bearing and seal connector, such as the connection of high temperature resistant pressure-bearing
1 internal hydraulic pressure oil circuit of test barrel can be physically separated with external environment, and complete electric machine assembly 201 and control group by device
The electrical connection of part, prevents interference of the external environment to test result, and test result is more accurate and reliable.
Specifically, electrical connection mouth 19 is also provided on the end face of gland 14, pilot seal connector 9 is by electrical connection mouth
19 pass through gland 14；Further include the connector pressure mother 91 being connected with gland 14, is used for fixed guide hermetically sealed connector 9, prevents
The play of pilot seal connector 9；Connector pressure mother 91 can be with gland 14 to be connected through a screw thread, and structure is simple, connection jail
Gu reliable.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (10)
1. a kind of test device of rotary steerable tool hydraulic control system, the hydraulic control system include electric machine assembly, column
Fill in pump assembly and control valve group, which is characterized in that the test device includes:
Test barrel is formed with chamber resettling in the test barrel, and the chamber resettling is for being fixedly mounted the hydraulic control system
System；Be additionally provided with the oil inlet, oil return opening and pressure tap being connected to the chamber resettling in the test barrel, the pressure tap with
The pressure output of the hydraulic control system is connected to；
Pressure detecting assembly, the pressure detecting assembly is arranged at the pressure tap, for detecting the hydraulic control system
Output pressure；And
Control assembly, the control assembly is used to be electrically connected with the electric machine assembly, and detects and controls the electric machine assembly
Revolving speed.
2. a kind of test device of rotary steerable tool hydraulic control system according to claim 1, which is characterized in that
The test device further includes high temperature test component, and the test barrel can be fitted into the high temperature test component, to survey
Try hydraulic control system performance indicator in a high temperauture environment；Wherein, the hot environment refers to that temperature is higher than 150 DEG C
Environment.
3. a kind of test device of rotary steerable tool hydraulic control system according to claim 1, which is characterized in that
The test device further includes vibration test component, and the test barrel can be mounted on the vibration test component, with
Test performance indicator of the hydraulic control system under vibration environment.
4. a kind of test device of rotary steerable tool hydraulic control system according to claim 1, which is characterized in that
The test device further includes flow detection component, and the flow detection component is arranged at the oil return opening, for examining
Survey the flow of the oil return opening.
5. a kind of test device of rotary steerable tool hydraulic control system according to claim 1, which is characterized in that
The test device includes test barrel described at least three, and all test barrels share a set of control assembly.
6. a kind of test device of rotary steerable tool hydraulic control system according to claim 1, which is characterized in that
The test device further includes four-way component, and the four-way component is connect with the pressure tap, the pressure detecting assembly
It is mounted on the four-way component；
The test device further includes pressure detecting and display component, and the pressure detecting and display component are mounted on the four-way
On component.
7. a kind of test device of rotary steerable tool hydraulic control system according to any one of claim 1 to 6,
It is characterized in that,
The test barrel includes sequentially connected gland, motor pump block, valve seat set and oil return set, the gland, the electric-motor pump
Set, valve seat set and oil return set surround the chamber resettling jointly；
The electric-motor pump, which is put on, opens up the oil inlet, and the oil return, which is put on, opens up the oil return opening, and the valve seat, which is put on, to be opened up
The pressure tap；The electric machine assembly and the assembly of the plunger pump are mounted in the motor pump block, the control valve group peace
In valve seat set and oil return set.
8. a kind of test device of rotary steerable tool hydraulic control system according to claim 7, which is characterized in that
Between the gland and the motor pump block, the motor pump block and the valve seat set between, the valve seat set with it is described
Seal member is provided between oil return set.
9. a kind of test device of rotary steerable tool hydraulic control system according to claim 7, which is characterized in that
The test device further includes pilot seal connector, and the pilot seal connector passes through the gland for the motor
Component and the control assembly are electrically connected.
10. a kind of test device of rotary steerable tool hydraulic control system according to claim 9, which is characterized in that
The pilot seal connector is multicore pressure bearing and seal connector.
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| CN109854569B (en) | 2020-07-07 |
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