CN109854569B - Testing device for hydraulic control system of rotary steering tool - Google Patents
Testing device for hydraulic control system of rotary steering tool Download PDFInfo
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- CN109854569B CN109854569B CN201910087820.1A CN201910087820A CN109854569B CN 109854569 B CN109854569 B CN 109854569B CN 201910087820 A CN201910087820 A CN 201910087820A CN 109854569 B CN109854569 B CN 109854569B
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Abstract
The application discloses a testing device of a hydraulic control system of a rotary steering tool, wherein the hydraulic control system comprises a motor assembly, a plunger pump assembly and a control valve assembly, the testing device comprises a testing cylinder, a pressure detection assembly and a control assembly, an accommodating chamber is formed in the testing cylinder, and the accommodating chamber is used for fixedly mounting the hydraulic control system; the test cylinder is also provided with an oil inlet, an oil return port and a pressure measuring port which are communicated with the accommodating cavity, and the pressure measuring port is communicated with a pressure output port of the hydraulic control system; the pressure detection assembly is arranged at the pressure measuring port and used for detecting the output pressure of the hydraulic control system; the control assembly is used for being electrically connected with the motor assembly and detecting and controlling the rotating speed of the motor assembly. The hydraulic control system performance index testing device can test the performance index of the whole hydraulic control system, the testing result is close to the real working condition, the accuracy and the reliability are realized, the structure is simple, the use is convenient, the time and the labor are saved, the testing efficiency is high, and the testing means is provided for the real marketization application of the hydraulic control system.
Description
Technical Field
The application belongs to the technical field of oil drilling, and particularly relates to a testing device of a hydraulic control system of a rotary steering tool.
Background
The rotary steering drilling technology is a technology that steering drilling is carried out under the condition that a drill string rotates fully, a controllable offset stabilizer or a rotary steering tool capable of controlling the lateral force (steering force) of the drill bit is arranged above the drill bit, and a complete rotary steering drilling control system is arranged, so that the well bore track can be regulated and controlled when the drill string drills in a rotating mode. When the rotary steering drilling technology is used for drilling operation, three-dimensional well track control can be realized without frequently tripping the drill, the rotary steering drilling technology has the advantages of smoother well track and larger extension distance, and has important significance for ensuring the quality of the well track, improving the drilling speed and efficiency and meeting the requirement of drilling a well with a complex structure.
The rotary guiding tool integrates machine, electricity and liquid, and can be divided into a slurry power driving mode and a motor-pump hydraulic system driving mode according to an actuating mechanism driving mode. For example, the POWER DRIVE series of the Schlumberger company is a typical mud POWER direct driving mode, and the lateral force of the drill bit is directly generated by using the mud POWER, but the hydraulic impact phenomenon exists; for example, the Auto track series static push type rotary steering tool of the beckhaus company adopts a motor-pump hydraulic system driving mode, and has the advantages of generating static bias force, avoiding hydraulic impact phenomenon and easily forming an underground closed loop.
At present, a rotary steering tool becomes a key technology which restricts the technical fields of deep oil gas exploitation, shale gas exploitation and the like in China, and domestic research institutions carry out research on the rotary steering tool on the basis of foreign technologies. The hydraulic control system of the rotary steering tool is a core mechanism of the rotary steering tool, and the control precision and reliability of the hydraulic control system directly determine the performance and reliability of the rotary steering tool. In order to promote the rapid development of the rotary steering tool, a testing device of a hydraulic control system of the rotary steering tool is urgently needed, the performance index test of the hydraulic control system of the rotary steering tool is simulated under the ground condition, the reliability and the market competitiveness of the rotary steering tool are greatly improved, and a testing means is provided for the real marketization application of the hydraulic control system of the rotary steering tool.
However, the existing rotary guiding tool testing device generally performs performance test on the whole rotary guiding tool prototype, and is closer to the real working condition of the rotary guiding tool; but need install hydraulic control system in the model machine before the test, it is troublesome to install, when the performance index test of rotatory direction instrument can not satisfy the requirement moreover, still need dismantle the change adjustment to each part, wastes time and energy, and work load is great. In some testing devices, all parts of the hydraulic control system are arranged on a testing bench and are connected through pipelines, so that the function detection and performance evaluation can be performed on key parts (such as a plunger pump) of the hydraulic control system; however, these testing devices do not consider the flow resistance change of the hydraulic control system caused by the change of the oil path, which causes the deviation of the testing result from the actual use, and the practicability is low.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
Disclosure of Invention
In order to solve the above problems, an object of the present application is to provide a testing apparatus for a hydraulic control system of a rotary steerable tool, which provides a corresponding ground testing apparatus for a hydraulic control system of a motor-pump in a static push-type rotary steerable tool, can be used for performing performance index testing on the hydraulic control system of the rotary steerable tool, has a simple structure, is convenient to use, has a test result close to a real working condition, has strong practicability, and provides a testing means for real marketization application of the hydraulic control system.
To achieve the above object, the present application proposes a testing device of a hydraulic control system of a rotary steerable tool, the hydraulic control system including a motor assembly, a plunger pump assembly and a control valve assembly, the testing device comprising: the test device comprises a test cylinder, a hydraulic control system and a control system, wherein an accommodating chamber is formed in the test cylinder and is used for fixedly mounting the hydraulic control system; the test cylinder is also provided with an oil inlet, an oil return port and a pressure measuring port which are communicated with the accommodating cavity, the pressure measuring port is communicated with a pressure output port of the hydraulic control system, the oil inlet is connected with an external high-pressure oil source, and the oil return port is connected with an external low-pressure oil source; the test cylinder comprises a gland, a motor pump sleeve, a valve seat sleeve and an oil return sleeve which are sequentially connected, and the gland, the motor pump sleeve, the valve seat sleeve and the oil return sleeve jointly enclose the accommodating chamber; the motor pump sleeve is provided with the oil inlet, the oil return sleeve is provided with the oil return port, and the valve seat sleeve is provided with the pressure measuring port; the motor assembly and the plunger pump assembly are arranged in the motor pump sleeve, and the control valve assembly is arranged in the valve seat sleeve and the oil return sleeve; the pressure detection assembly is arranged at the pressure measuring port and used for detecting the output pressure of the hydraulic control system; and the control assembly is electrically connected with the motor assembly and used for detecting and controlling the rotating speed of the motor assembly.
In one example, the testing device further comprises a high-temperature testing assembly, wherein the testing cylinder can be loaded into the high-temperature testing assembly to test the performance index of the hydraulic control system in a high-temperature environment; wherein, the high temperature environment refers to an environment with the temperature higher than 150 ℃.
In one example, the testing device further comprises a shock testing assembly, and the testing cylinder can be installed on the shock testing assembly to test the performance index of the hydraulic control system in a shock environment.
In one example, the testing device further comprises a flow detection assembly, and the flow detection assembly is arranged at the oil return port and used for detecting the flow of the oil return port.
In one example, the testing apparatus comprises at least 3 of the test cartridges, and all of the test cartridges share a common set of the control assembly.
In one example, the testing device further comprises a four-way component, the four-way component is connected with the pressure measuring port, and the pressure detecting component is mounted on the four-way component; the testing device further comprises a pressure detection and display assembly, and the pressure detection and display assembly is installed on the four-way assembly.
In one example, sealing parts are arranged between the gland and the motor pump sleeve, between the motor pump sleeve and the valve seat sleeve, and between the valve seat sleeve and the oil return sleeve.
In one example, the testing device further includes a pilot seal connector that electrically connects the motor assembly with the control assembly through the gland.
In one example, the pilot seal connector is a multi-conductor pressure-bearing seal connector.
Through the testing arrangement of rotatory steering tool hydraulic control system that this application provided can bring following beneficial effect:
1. by arranging the test cylinder, the performance index test can be carried out on the whole hydraulic control system, the flow resistance inside the hydraulic control system is close to the real working condition, and the performance index test result of the hydraulic control system is also close to the real working condition, so that the hydraulic control system is more accurate and reliable; repeated disassembly and assembly of the hydraulic control system and the rotary guide tool are avoided, time and labor are saved, and the testing efficiency is high; and the testing device has simple structure and convenient use, provides a testing means for the real marketization application of the hydraulic control system, and has strong practicability.
2. Through setting up the high temperature test subassembly, during the high temperature test subassembly is packed into to test section of thick bamboo whole, can test hydraulic control system performance index under high temperature environment, the actual application condition of fully considering hydraulic control system satisfies the actual application demand, and the practicality is stronger.
3. Through setting up 3 at least test section of thick bamboo, can carry out the performance index test to 3 at least hydraulic control systems simultaneously, improve efficiency of software testing, fully consider hydraulic control system's the actual application condition, satisfy the actual application demand, the practicality is stronger.
4. Through setting up pressure detection and display module, can real-time detection and demonstration hydraulic control system's output pressure, the change situation of convenient direct real-time observation hydraulic control system's output pressure value.
5. Through multicore pressure-bearing sealing connector with motor element and control assembly electrical connection, can carry out physics with the inside oil circuit of test section of thick bamboo and external environment and keep apart, prevent external environment to the interference of test result, the test result is more accurate reliable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a testing apparatus of a hydraulic control system of a rotary steerable tool according to an embodiment of the present application.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present application, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1, the embodiment of the present application provides a testing apparatus 100 for a hydraulic control system of a rotary steerable tool, which includes a testing cylinder 1, a pressure detecting component 2, a control component (not shown), an adapter 3, and an oil return pipe assembly 4. Wherein, a containing chamber is formed in the test cylinder 1, and the containing chamber is used for fixedly mounting a hydraulic control system 200 of a rotary guiding tool; the test cylinder 1 is further provided with an oil inlet 11, an oil return port 12 and a pressure measuring port 13 which are communicated with the accommodating cavity, the test cylinder 1 is connected with an external oil circuit through the oil inlet 11 and the oil return port 12, and the pressure measuring port 13 is communicated with a pressure output port of the hydraulic control system 200. The pressure detection assembly 2 is arranged at the pressure measuring port 13 and is used for detecting the output pressure of a pressure output port of the hydraulic control system 200; the pressure detecting assembly 2 may be a pressure sensor. The control assembly is used for electrically connecting with the motor assembly 201 of the hydraulic control system 200 and detecting and controlling the rotating speed of the motor assembly 201. The oil inlet 11 is connected with an external high-pressure oil source (not shown in the figure) through the adapter 3, and the adapter 3 is a hydraulic oil inlet of the whole testing device 100, so that the problem that the outlet interfaces of the external high-pressure oil source are not uniform can be effectively solved; and the adapter 3 is used as a wearing part, is not replaced under the ordinary condition after being connected with the testing device 100, is used as a part of the testing device 100, and is used for frequently connecting and detaching with an external high-pressure oil source, so that the phenomenon that the oil inlet 11 is damaged possibly due to the fact that the oil inlet 11 is directly and frequently connected with the external high-pressure oil source is avoided, the adapter 3 is easy to replace when damaged, and the service life of the testing device 100 is effectively prolonged. The oil return port 12 is connected with an external low-pressure oil source (not shown in the figure) through the oil return pipe assembly 4, and the low-pressure oil source can be an oil tank; the oil return pipe assembly 4 is a hydraulic oil outlet of the whole testing device 100, can also solve the problem of non-uniform external low-pressure oil source interfaces, is easy to replace, avoids the damage of the oil return port 12, and effectively prolongs the service life of the testing device 100.
The hydraulic control system 200 is a core component of the rotary steering tool and comprises a motor assembly 201, a plunger pump assembly 202 and a control valve assembly 203 which are connected in sequence, wherein the motor assembly 201 drives the plunger pump assembly 202 to work, and the plunger pump assembly 202 pumps hydraulic oil into the control valve assembly 203; the control valve assembly 203 includes a high pressure zone, a throttle valve, and a safety valve, the control valve assembly 203 also having a pressure output port in communication with the high pressure zone, and the safety valve may be a relief valve. When the hydraulic control system 200 works, the motor assembly 201 starts to work, drives the plunger pump assembly 202 to act, and pumps hydraulic oil into the control valve assembly 203; after the hydraulic oil enters the control valve assembly 203, a part of the hydraulic oil enters a high pressure area of the control valve assembly 203, so that the pressure of the high pressure area is increased, the output pressure of a pressure output port is also increased, and the rest of the hydraulic oil is discharged out of the control valve assembly 203 through a throttle valve. The rotating speed of the motor assembly 201 controls the output pressure of the pressure output port, and as the rotating speed of the motor assembly 201 increases, the hydraulic oil pumped into the control valve assembly 203 by the plunger pump assembly 202 increases, the pressure in the high-pressure area increases, and the output pressure of the pressure output port increases. The safety valve is used for setting the highest pressure of the high pressure area to ensure the safe and reliable work of the hydraulic control system 200, and the safety valve is in a normally closed state; when the rotating speed of the motor assembly 201 continuously increases to make the pressure of the high pressure region reach the highest pressure, the safety valve is opened to discharge the redundant hydraulic oil in the high pressure region out of the control valve assembly 203, at this time, when the rotating speed of the motor assembly 201 continuously increases, the output pressure of the pressure output port is maintained unchanged, and the output pressure of the pressure output port reaches the maximum output pressure. The rotary steering tool relies on the output pressure of the hydraulic control system 200 to generate an offset thrust to regulate the well trajectory as the drill string is rotated into drilling; the maximum offset thrust of the rotary guiding tool corresponds to the maximum output pressure of the hydraulic control system 200, and the control accuracy of the offset thrust is directly related to whether the well trajectory during rotary drilling of the drill string can be consistent with the preset well trajectory. Therefore, the performance indexes of the hydraulic control system 200 mainly include the correspondence between the rotation speed and the output pressure of the motor assembly 201, the maximum output pressure, the displacement and volumetric efficiency of the plunger pump assembly 202, the control accuracy of the output pressure, and the like.
The flow characteristics within the hydraulic control system 200 are directly related to pressure, which is related to the flow resistance of the flow passages within the hydraulic control system 200, as is the voltage versus resistance. When the testing device 100 is used, firstly, core components (a motor component 201, a plunger pump component 202 and a control valve component 203) of a hydraulic control system 200 are connected and assembled into the hydraulic control system 200 according to an actual use state, then the core components are integrally installed in a testing cylinder 1 for performance index testing, an external component with small influence on flow resistance is omitted, a pressure output port is communicated with a pressure measuring port 13, a pressure detection component 2 is installed at the pressure measuring port 13, the control component is electrically connected with the motor component 201, an oil inlet 11 is connected with a high-pressure oil source, an oil outlet 12 is connected with a low-pressure oil source, and the hydraulic control system 200 is integrally soaked in a hydraulic oil environment; the internal hydraulic oil circuit of the test cylinder 1 is physically isolated from the external environment, a simulation environment as real as possible is provided, the hydraulic control system 200 in an actual prototype is also installed in a closed hydraulic cylinder with the same size as the test cylinder 1, so that the working condition of the hydraulic control system 200 in an actual drilling environment is simulated, the oil circuit in the hydraulic control system 200 is ensured to be consistent with the oil circuit in actual use, the flow resistance in the hydraulic control system 200 is closer to the real working condition, the flow characteristic in the hydraulic control system 200 is also closer to the real condition, and the performance index test result of the hydraulic control system 200 is closer to the real working condition, and is more accurate and reliable. Meanwhile, the performance index of the whole core structure of the hydraulic control system 200 is tested, when the performance index of the hydraulic control system 200 is tested to meet the requirements, the hydraulic control system 200 can be integrally installed in the rotary guiding tool to be directly put into production and used, multiple times of disassembly and assembly during testing of a rotary guiding tool prototype are avoided, time and labor are saved, the practicability is high, and a testing means is provided for real marketization application of the hydraulic control system 200. Moreover, the testing device 100 provides a corresponding ground testing device for the hydraulic control system 200 of the motor-pump in the static push-pull type rotary guiding tool, can be used for testing the performance index of the hydraulic control system 200 of the rotary guiding tool, has the advantages of simple structure, convenient assembly, disassembly and use, test result close to the real working condition and strong practicability, and provides a testing means for the real marketization application of the hydraulic control system 200.
The test device 100 of the present application can directly perform an open loop test on the hydraulic control system 200: the rotating speed of the motor assembly 201 is detected and controlled through the control assembly, oil is supplied into the test cylinder 1 through the oil inlet 11, part of hydraulic oil discharged by the control valve assembly 203 flows back into an oil tank through the oil return port 12 to realize cyclic utilization, and meanwhile, the output pressure of the pressure output port is detected through the pressure detection assembly 2, so that the corresponding relation between the rotating speed and the output pressure of the motor assembly 201 is obtained; the control module controls the rotation speed of the motor module 201 to continuously increase until the output pressure detected by the pressure detection module 2 does not increase any more, and then the maximum output pressure of the hydraulic control system 200 is obtained.
The test apparatus 100 may also perform a closed-loop test on the hydraulic control system 200 to determine the output pressure control accuracy of the hydraulic control system 200: setting a desired output pressure; the pressure detection assembly 2 is electrically connected with the control assembly, and the pressure detection assembly 2 acquires the output pressure of the hydraulic control system 200 in real time and feeds the output pressure back to the control assembly; the control assembly calculates the appropriate rotating speed of the motor assembly 201 according to the current output pressure value information and the expected output pressure value information, and then controls the rotating speed of the motor assembly 201 through the control assembly so as to control the output pressure value of the hydraulic control system 200, thereby forming a complete closed-loop control system. The smaller the deviation between the finally obtained actual output pressure and the desired output pressure is, the higher the output pressure control accuracy of the hydraulic control system 200 is; the testing device 100 can test whether the hydraulic control system 200 meets the requirement of the output pressure control accuracy, the requirement of the output pressure control accuracy of the general hydraulic control system 200 is 10MPa +/-0.3 MPa, namely, the error cannot exceed 3%.
In particular, the tool may be operated in a high temperature environment, which is an environment having a temperature greater than 150 ℃; the viscosity of the hydraulic oil is directly related to the temperature, when the temperature rises, the viscosity of the hydraulic oil is reduced, and the pressure generated by the hydraulic oil under the same flow is reduced; meanwhile, the working performance of the pressure detection assembly 2 and the motor assembly 201 can be affected by the temperature.
The test apparatus 100 further includes a high temperature test assembly (not shown), which is capable of simulating a high temperature environment; for example, the high temperature test assembly may be a hot box or the like. The test cylinder 1 is small in size and easy to install, can be integrally installed in a high-temperature test assembly, can simulate a field operation environment as much as possible, main components of the hydraulic control system 200 installed in the test cylinder 1 are the same as those of a real engineering prototype, and the overall environmental adaptability of the hydraulic control system 200 can be tested more easily, so that the performance index of the hydraulic control system 200 in the high-temperature environment can be tested, the actual application condition of the hydraulic control system 200 is fully considered, the practicability is high, and a test means is provided for the real market application of the hydraulic control system 200.
In particular, the tool may also be operated in a jarring environment, which can have an effect on the electrical circuitry of the control assembly and motor assembly 201 and the strength of the connections of the components within the hydraulic control system 200.
The testing device 100 further comprises a vibration testing component (not shown in the figure), which can simulate a vibration environment; for example, the shock testing assembly may be a shock testing stand. The test cylinder 1 is small in size and easy to install, can be integrally installed on a vibration test assembly, can simulate a field operation environment as much as possible, and main components of a hydraulic control system 200 installed in the test cylinder 1 are the same as those of a real engineering prototype, so that the overall environmental adaptability of the hydraulic control system 200 can be tested more easily, performance indexes of the hydraulic control system 200 in a vibration environment can be tested, the actual application condition of the hydraulic control system 200 is fully considered, the practicability is high, and a test means is provided for the real market application of the hydraulic control system 200.
Specifically, a flow rate detection assembly (not shown in the figure) is further included, and the flow rate detection assembly is arranged at the oil return port 12 and is used for detecting the flow rate of the oil return port 12. The displacement of the plunger pump assembly 202 can be converted according to the flow of the oil return port 12, and the rotating speed of the motor assembly 201 is detected and controlled through the control assembly, so that the flow characteristics and the volumetric efficiency of the plunger pump assembly 202 under different rotating speed conditions of the motor assembly 201 are obtained. The flow sensing assembly may be a sensor element such as a flow meter.
Specifically, a set of tools typically includes at least 3 sets of hydraulic control systems 200, and all of the hydraulic control systems 200 are associated with each other, and the hydraulic control systems 200 cooperate with each other to control the deflection of the tools, and may also interfere with each other among the hydraulic control systems 200. The testing device 100 comprises at least 3 testing cylinders 1, and can simultaneously test the performance indexes of at least 3 sets of independent hydraulic control systems 200, so that the testing efficiency is improved; and all test tubes 1 share an external high-pressure oil source and also share one set of control assembly, so that synchronous testing of at least 3 sets of hydraulic control systems 200 can be realized, the actual application condition of the hydraulic control systems 200 is fully considered, the practicability is strong, and a test means is provided for real marketization application of the hydraulic control systems 200.
Specifically, the pressure measuring device further comprises a four-way component 5, a pressure gauge joint 6 and a pressure detecting and displaying component (not shown in the figure), wherein the four-way component 5 is connected with a pressure measuring port 13, and a plurality of testing ports 51 are arranged on the four-way component 5; the pressure detection component 2 and the pressure gauge joint 6 are respectively arranged in one of the test ports 51 on the four-way component 5, so that the multi-path synchronous detection of the pressure measuring port 13 is realized, the test efficiency is higher, and multiple functions can be realized. A pressure gauge pad 61 is arranged in the pressure gauge joint 6, and the pressure gauge joint 6 can be a shock-proof pressure gauge joint. The pressure detection and display component is arranged on the pressure gauge joint 6, and can also be directly arranged on the four-way component 5; the pressure detection and display component can be an earthquake-resistant pressure gauge, the earthquake-resistant pressure gauge can be a digital display pressure gauge or a common mechanical earthquake-resistant pressure gauge and is used for detecting and displaying the output pressure of the hydraulic control system 200 in real time, the output pressure value of the hydraulic control system 200 can be directly observed conveniently, the controlled quantity can be directly observed, the control effect of the system can be visually judged conveniently, and the pressure closed-loop control effect is realized.
A plug screw 7 can be further included, the plug screw 7 can be installed in any test port 51 of the four-way component 5, the test port 51 is plugged to be used as a spare port, and when the test port 51 needs to be used, the plug screw 7 is removed and replaced by a corresponding pressure or other type of sensor. And when the test cylinder 1 is integrally placed in a high-temperature environment to test the performance index of the hydraulic control system 200 in the high-temperature environment, the pressure gauge joint 6 can be replaced by the screw plug 7, so that the pressure gauge can be prevented from being damaged in the high-temperature environment.
Specifically, the testing cylinder 1 comprises a gland 14, a motor pump sleeve 15, a valve seat sleeve 16 and an oil return sleeve 17 which are connected in sequence, the motor pump sleeve 15 and the valve seat sleeve 16 are connected in a fastening mode through screws, and the valve gland 14, the motor pump sleeve 15, the valve seat sleeve 16 and the oil return sleeve 17 enclose a closed accommodating chamber together. An oil inlet 11 is formed in the motor pump sleeve 15, an oil outlet 12 is formed in the oil return sleeve 17, and a pressure measuring port 14 is formed in the valve seat sleeve 16; the motor assembly 201 and the plunger pump assembly 202 are arranged in the motor pump sleeve 15, the control valve assembly 203 is arranged in the valve seat sleeve 16 and the oil return sleeve 17, and the valve seat sleeve 16 is in threaded connection with the four-way assembly 5. The test cartridge 1 further comprises a supporting component 18, the supporting component 18 is fixedly connected with the valve seat sleeve 16 and used for supporting and fixing the test cartridge 1 so as to be convenient for placing the whole set of test device, and the supporting component 18 is positioned near the high-pressure oil area, so that the shell of the test cartridge 1 is thicker, and the strength of the test cartridge 1 is increased; the support member 18 may be a support plate. The test cylinder 1 is simple in structure, convenient to manufacture and use, convenient and fast to install and detach the hydraulic control system 200, time-saving and labor-saving, and high in test efficiency.
Specifically, sealing parts 8 are arranged between the gland 14 and the motor pump sleeve 15, between the motor pump sleeve 15 and the valve seat sleeve 16, and between the valve seat sleeve 16 and the oil return sleeve 17, and are used for sealing and isolating the inside of the test cylinder 1 from the outside, so that hydraulic oil is conveniently filled into the test cylinder 1 during testing; the sealing member 8 may be an O-ring or other type of seal.
Specifically, a guide sealing connector 9 is further included, and the guide sealing connector 9 electrically connects the motor assembly 201 with the control assembly through the gland 14. The guiding sealing connector 9 can be a multi-core pressure-bearing sealing connector, such as a high-temperature-resistant pressure-bearing connector, and can physically isolate the hydraulic oil circuit inside the test cylinder 1 from the external environment, and complete the electrical connection between the motor assembly 201 and the control assembly, so that the external environment is prevented from interfering the test result, and the test result is more accurate and reliable.
Specifically, an electrical connection port 19 is further formed on the end face of the gland 14, and the guide sealing connector 9 penetrates through the gland 14 from the electrical connection port 19; the connector pressing nut 91 is connected with the pressing cover 14 and used for fixing the guide sealing connector 9 and preventing the guide sealing connector 9 from moving; the connector pressing nut 91 and the pressing cover 14 can be connected through threads, and the connector pressing nut is simple in structure and firm and reliable in connection.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A test apparatus for a rotary steerable tool hydraulic control system, the hydraulic control system including a motor assembly, a plunger pump assembly, and a control valve assembly, the test apparatus comprising:
the test device comprises a test cylinder, a hydraulic control system and a control system, wherein an accommodating chamber is formed in the test cylinder and is used for fixedly mounting the hydraulic control system; the test cylinder is also provided with an oil inlet, an oil return port and a pressure measuring port which are communicated with the accommodating cavity, the pressure measuring port is communicated with a pressure output port of the hydraulic control system, the oil inlet is connected with an external high-pressure oil source, and the oil return port is connected with an external low-pressure oil source; the test cylinder comprises a gland, a motor pump sleeve, a valve seat sleeve and an oil return sleeve which are sequentially connected, and the gland, the motor pump sleeve, the valve seat sleeve and the oil return sleeve jointly enclose the accommodating chamber; the motor pump sleeve is provided with the oil inlet, the oil return sleeve is provided with the oil return port, and the valve seat sleeve is provided with the pressure measuring port; the motor assembly and the plunger pump assembly are arranged in the motor pump sleeve, and the control valve assembly is arranged in the valve seat sleeve and the oil return sleeve;
the pressure detection assembly is arranged at the pressure measuring port and used for detecting the output pressure of the hydraulic control system; and
and the control assembly is electrically connected with the motor assembly and used for detecting and controlling the rotating speed of the motor assembly.
2. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the testing device also comprises a high-temperature testing assembly, and the testing cylinder can be arranged in the high-temperature testing assembly to test the performance index of the hydraulic control system in a high-temperature environment; wherein, the high temperature environment refers to an environment with the temperature higher than 150 ℃.
3. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the testing device further comprises a vibration testing assembly, and the testing cylinder can be mounted on the vibration testing assembly to test the performance index of the hydraulic control system in the vibration environment.
4. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the testing device further comprises a flow detection assembly, wherein the flow detection assembly is arranged at the oil return port and used for detecting the flow of the oil return port.
5. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the testing device comprises at least 3 testing cylinders, and all the testing cylinders share one set of the control assembly.
6. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the testing device also comprises a four-way component, the four-way component is connected with the pressure measuring port, and the pressure detecting component is arranged on the four-way component;
the testing device further comprises a pressure detection and display assembly, and the pressure detection and display assembly is installed on the four-way assembly.
7. The test apparatus for a rotary steerable tool hydraulic control system according to claim 1,
the gland with between the motor pump cover, the motor pump cover with between the valve seat cover, the valve seat cover with all be provided with sealing element between the oil return cover.
8. A test apparatus for a rotary steerable tool hydraulic control system according to claim 7,
the testing device further comprises a guide sealing connector, and the guide sealing connector penetrates through the gland to electrically connect the motor assembly with the control assembly.
9. The test apparatus for a rotary steerable tool hydraulic control system according to claim 8,
the guiding sealing connector is a multi-core pressure-bearing sealing connector.
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| CN101281235A (en) * | 2008-05-08 | 2008-10-08 | 中国海洋石油总公司 | High temperature high voltage electric machine testing device |
| CN203516246U (en) * | 2013-10-16 | 2014-04-02 | 北京波特耐尔石油技术有限公司 | Rotary guiding tool hydraulic system power driving device |
| CN103939017A (en) * | 2014-04-29 | 2014-07-23 | 重庆前卫科技集团有限公司 | Static bias backup type rotary steering well drilling tool |
| CN203783462U (en) * | 2014-04-29 | 2014-08-20 | 重庆前卫科技集团有限公司 | Offset actuating mechanisms for rotary steering drilling tool |
| CN104619944A (en) * | 2012-06-12 | 2015-05-13 | 哈利伯顿能源服务公司 | Modular rotary steerable actuators, steering tools, and rotary steerable drilling systems with modular actuators |
| CN105041212A (en) * | 2015-09-07 | 2015-11-11 | 重庆前卫科技集团有限公司 | Rotary steering well drilling control system and control method thereof |
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| CN101281235A (en) * | 2008-05-08 | 2008-10-08 | 中国海洋石油总公司 | High temperature high voltage electric machine testing device |
| CN104619944A (en) * | 2012-06-12 | 2015-05-13 | 哈利伯顿能源服务公司 | Modular rotary steerable actuators, steering tools, and rotary steerable drilling systems with modular actuators |
| CN203516246U (en) * | 2013-10-16 | 2014-04-02 | 北京波特耐尔石油技术有限公司 | Rotary guiding tool hydraulic system power driving device |
| CN103939017A (en) * | 2014-04-29 | 2014-07-23 | 重庆前卫科技集团有限公司 | Static bias backup type rotary steering well drilling tool |
| CN203783462U (en) * | 2014-04-29 | 2014-08-20 | 重庆前卫科技集团有限公司 | Offset actuating mechanisms for rotary steering drilling tool |
| CN105041212A (en) * | 2015-09-07 | 2015-11-11 | 重庆前卫科技集团有限公司 | Rotary steering well drilling control system and control method thereof |
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