CN115753038A - Downhole instrument and tool multi-working-condition simulation test system and test method - Google Patents
Downhole instrument and tool multi-working-condition simulation test system and test method Download PDFInfo
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Abstract
The invention provides a downhole instrument tool multi-working-condition simulation test system and a test method. The test tool platform comprises a vibration unit, a rotation unit, an axle load unit, a high-temperature unit and a short circuit. The test method comprises the following steps: setting test parameters, adjusting the well depth length, the vibration frequency and amplitude, the drilling thrust, the drilling rotation speed, the simulation temperature and the simulation pressure, enabling circulating fluid to circularly flow, testing an underground instrument, collecting and recording flow and pressure data, changing the test parameters, and repeatedly testing for many times. The test system can provide comprehensive simulation conditions of circulation, high temperature, high pressure, rotation, vibration and the like. The test method can be used for testing the running conditions of the underground instrument and the tool under different underground working conditions.
Description
Technical Field
The invention relates to the technical field of tests for testing underground instruments on the ground, in particular to a multi-working-condition simulation test system and a test method for underground instruments.
Background
With the rapid development of the well drilling and completion technology, the products of downhole instruments and tools for well drilling and completion are in a large number at home and abroad, and a large amount of research work on new instruments and tools for well drilling and completion is carried out in order to meet the requirements of well drilling and completion of deep, low, sea and non oil and gas resources. However, due to the lack of an intermediate testing platform, the existing new product model of drilling and completion is: after the product is successfully researched and developed, the product can directly enter a field test after an indoor test. This model exposes a number of problems in development. First, the existing equipment and downhole tools (e.g., MWD/LWD, screws, etc.) cannot simulate downhole conditions on site for testing, which may result in failure to work properly after entering the well. In addition, the reliability and maturity of the instrument and tool products are not checked, so that the non-production operation time is increased, and potential safety hazards may exist.
Therefore, in order to improve the conversion efficiency of downhole tool products and shorten the research and development period, a downhole tool multi-condition simulation test system with rich simulation condition functions needs to be provided, and the simulation test system can carry out ground reliability test tests on downhole tools under the comprehensive simulation conditions of circulation, high temperature, high pressure, rotation, vibration and the like.
Chinese patent with application number of CN201310449191.5 and name of downhole tool high-temperature high-pressure simulation test device and test method discloses a downhole tool high-temperature high-pressure simulation test device and a method for performing petroleum downhole tool simulation test by using the same. The device comprises a low-pressure driving system, a high-pressure oil system, a high-temperature circulating system, a temperature and pressure measuring system, a simulation shaft and a computer control acquisition and video monitoring system. The device can simulate the working state of the petroleum drilling and completion tool under the underground high-temperature and high-pressure condition, and provides a powerful reference basis for field application. But the structure of the device for simulating the high-temperature and high-pressure working conditions is different from that of the device, and the device does not have the function of simulating the well depth.
The Chinese patent with the application number of CN201910209884.4 and the name of 'a simulation test system for downhole tools' discloses a simulation test system for downhole tools, which relates to the technical field of oil and gas field development. The simulation test system comprises a test shaft, a temperature control system, a pressure control system, a force loading system and a measurement and control system. The simulation test system simulates the conditions of underground working conditions (including temperature, pressure, load and the like) by arranging a test shaft, a temperature control system, a pressure control system and a force loading system, and tests the underground tool under the conditions. The temperature in the test shaft simulated by the test system can reach 200 ℃, the pressure can reach more than 140MPa, the test requirements of downhole tools can be met, and the test system can be effectively used for subsequent detection and evaluation work of downhole tools such as a splitter, a bridge plug, a sliding sleeve, a restrictor and the like. However, the device is different from the structure of the simulation unit or the device for simulating high temperature, high pressure and load, and cannot simulate the running condition of the underground instrument tool under the underground real vibration condition.
Disclosure of Invention
In view of the deficiencies in the prior art, the present invention is directed to solving one or more of the problems in the prior art set forth above. For example, one of the objectives of the present invention is to provide a downhole tool multi-condition simulation test system and a test method capable of simulating different downhole conditions and inspecting the downhole tool.
In order to achieve the above object, the present invention provides a downhole tool multi-condition simulation test system, which comprises a fluid circulation module, a four-way interface, a flow meter, a pressure sensor, a signal downloading module, a centralized monitoring module, a test tool platform, a well depth simulation module and a high pressure simulation module, wherein,
the fluid circulation module is configured to supply and circulate a circulating fluid;
the first interface of the four-way interface is connected with the outlet of the fluid circulation module;
the inlet of the well depth simulation module is connected with the second interface of the four-way interface, the outlet of the well depth simulation module is connected with the inlet of the test tool platform, and the well depth simulation module can simulate different cycle lengths;
the test tool platform is connected with the third interface of the four-way interface, comprises a vibration unit, a rotation unit, an axle load unit, a high-temperature unit and a short circuit, and can simulate the vibration, rotation, bit pressure and high-temperature environment of the test instrument and monitor the internal state of the test instrument;
the inlet of the high-pressure simulation module is connected with the outlet of the test tool platform, the outlet of the high-pressure simulation module is connected with the inlet of the fluid circulation module, and the high-pressure simulation module can control the pressure of a test instrument tool to simulate a high-pressure environment;
the inlet of the signal downloading module is connected with the fourth interface of the four-way interface, the outlet of the signal downloading module is connected with the inlet of the fluid circulation module, and the signal downloading module can send a control instruction signal to a test instrument tool;
the pressure sensor and the flowmeter can monitor the pressure and the flow at corresponding positions in real time;
the centralized monitoring module can monitor and collect the state parameters of the multi-working-condition simulation test system and the running state parameters of the test instrument tool in the test process.
According to an exemplary embodiment of an aspect of the present invention, the vibration unit may include a main stage, a lower stage, a Z-direction vibration mechanism, an X-direction vibration mechanism, a Y-direction vibration mechanism, and a support column, wherein,
the supporting column is vertically arranged and adjustable in height, the lower platform is arranged on the supporting column, and the bottom surface of the lower platform is connected with the upper end of the supporting column in a sliding manner;
one end of the Y-direction vibration mechanism is fixedly arranged on the ground, and the other end of the Y-direction vibration mechanism is hinged with one side of the lower platform so as to drive the lower platform to move in the Y direction to simulate Y-direction vibration;
the main platform is arranged above the lower platform and is parallel to the lower platform, and the main platform is used for fixedly arranging a test instrument tool;
one end of the Z-direction vibration mechanism is fixed on the lower platform, and the other end of the Z-direction vibration mechanism is rotatably connected with the bottom surface of the main platform so as to drive the main platform to move in the Z direction to simulate Z-direction vibration;
one end of the X-direction vibration mechanism is fixed on the lower platform, and the other end of the X-direction vibration mechanism is hinged with one side of the main platform so as to drive the main platform to move in the X direction to simulate X-direction vibration.
According to an exemplary embodiment of an aspect of the present invention, the X-direction vibration mechanism may include a telescopic mechanism, a fixed rod, a triangular hinge mechanism and a rod hinge mechanism, wherein the fixed rod and the telescopic mechanism are vertically and fixedly disposed on an upper end surface of the lower platform, a left corner of the triangular hinge mechanism is hinged to an upper end of the telescopic mechanism, a middle corner of the triangular hinge mechanism is hinged to an upper end of the fixed rod, a right corner of the triangular hinge mechanism is hinged to one end of the rod hinge mechanism, and the other end of the rod hinge mechanism is rotatably connected to a side edge of the main platform.
According to an exemplary embodiment of an aspect of the present invention, the Y-direction vibration mechanism may include a telescopic mechanism, a fixed rod, a triangular hinge mechanism and a rod hinge mechanism, wherein the fixed rod and the telescopic mechanism are vertically and fixedly disposed on the ground, a left corner of the triangular hinge mechanism is hinged to an upper end of the telescopic mechanism, a middle corner is hinged to an upper end of the fixed rod, a right corner is hinged to one end of the rod hinge mechanism, and the other end of the rod hinge mechanism is rotatably connected to a side of the lower platform.
According to an exemplary embodiment of an aspect of the present invention, the Z-direction vibration mechanism may include a telescopic mechanism and a rotary hinge mechanism, wherein the telescopic mechanism is vertically and fixedly disposed on the upper end surface of the lower platform, and one end of the rotary hinge mechanism is hinged to the upper end of the telescopic mechanism, and the other end of the rotary hinge mechanism is hinged to the lower end surface of the main platform.
According to an exemplary embodiment of an aspect of the present invention, the main platform may be provided with a slide rail on an X-direction side surface thereof to ensure X-direction vibration of the main platform on a horizontal plane;
the Y-direction side surface of the lower platform can be provided with a slide rail to ensure the Y-direction vibration of the main platform on the horizontal plane.
According to an exemplary embodiment of an aspect of the present invention, the rotation unit may include a water tap disposed between an upstream end of the test instrument tool and the circulation line, and capable of controlling the test instrument tool to rotate.
According to an exemplary embodiment of an aspect of the present invention, the short may include a signal transmission short, a signal reception short, and a power short, wherein,
the signal sending short circuit and the signal receiving short circuit are arranged at the upstream end of the test instrument tool, and the signal sending short circuit and the signal receiving short circuit can monitor and control the test instrument tool;
the power short circuit can provide the electric energy for test instrument.
According to an exemplary embodiment of an aspect of the present invention, the high temperature unit may include a temperature maintaining mechanism and a heating mechanism, which are provided outside the test instrument tool to control a temperature of the test instrument tool.
According to an exemplary embodiment of an aspect of the present invention, the axle load unit may include a thrust bearing, a thrust pad, a thrust rod mechanism, and a control device, wherein,
the thrust bearings are arranged at two ends of the test instrument tool to ensure that the test instrument tool rotates horizontally;
the thrust block is arranged at the downstream end of the test instrument tool and is positioned on the right side of the thrust bearing;
thrust rod mechanism and controlling means are set gradually to the thrust piece right side, thrust rod mechanism can be right the thrust piece applys axial thrust, controlling means can control the size of applying the power.
According to an exemplary embodiment of an aspect of the present invention, the well depth simulation module may include a collecting pipeline and more than one coiled tubing coil, wherein each coiled tubing coil of the more than one coiled tubing coil is connected in series with each other and an outlet of each coiled tubing coil is communicated with the collecting pipeline, and an inlet and an outlet of each coiled tubing coil are provided with a switch valve;
and an outlet of the gathering pipeline is communicated with an inlet of the test tool platform, and a switch valve and a pressure sensor are arranged between the outlets of the two adjacent coiled tubing coils on the gathering pipeline.
According to an exemplary embodiment of an aspect of the present invention, the high pressure simulation module may be a section of parallel pipelines, one of the parallel pipelines is provided with a valve, and the other pipeline is provided with an automatic regulating valve and a valve, and the automatic regulating valve can control the circulation flow rate to realize the simulation of the high pressure condition of the test instrument tool.
According to an exemplary embodiment of an aspect of the present invention, the flow meter may be disposed on an outlet line of the high pressure simulation module and an inlet line of the signal download module for monitoring a flow rate in real time;
the pressure sensors may be disposed on the inlet and outlet lines of the test tool platform and the inlet line of the signal download module for real-time monitoring of pressure.
According to an exemplary embodiment of an aspect of the present invention, the fluid circulation module may include a circulation tank, a filter, a perfusion pump, a mud pump, and a sedimentation tank, wherein,
the filter, the perfusion pump and the mud pump are sequentially arranged on a pipeline connected with the first interface of the four-way interface and the circulation tank, and the filter is close to the outlet of the circulation tank;
the sedimentation tank is arranged on an outlet pipeline of the high-pressure simulation module and an outlet pipeline of the signal downloading module.
In another aspect of the present invention, a downhole tool multi-condition simulation test method is provided, where the test method is implemented by the downhole tool multi-condition simulation test system described above, and the test method includes the steps of:
setting various test parameters for testing the downhole instrument tool;
adjusting corresponding well depth simulation length distance, vibration simulation frequency and amplitude, drilling simulation thrust, drilling simulation rotation speed, high-temperature simulation temperature and high-pressure simulation circulating pressure in the test system;
circulating fluid in the test system to perform functionality and reliability tests on the downhole instrument;
collecting and recording flow and pressure data on each pipeline in the test process;
and changing test parameters, repeating the test for multiple times, and recording test data.
Compared with the prior art, the invention has the beneficial effects that at least one of the following contents is included:
(1) The underground instrument and tool multi-working-condition simulation test system provided by the invention has rich simulation working condition functions, and can carry out ground reliability test tests on the underground instrument and tool under the comprehensive simulation conditions of circulation, high temperature, high pressure, rotation, vibration and the like;
(2) The downhole instrument tool multi-working-condition simulation test system provided by the invention can improve the conversion efficiency of downhole instrument tool products and shorten the research and development period;
(3) The multi-working-condition simulation test system for the underground instrument and the tool can reduce the non-production operation time.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 illustrates a schematic structural diagram of an exemplary embodiment of a downhole tool multi-condition simulation testing system of the present invention;
fig. 2 shows a schematic structural diagram of the test tool platform in fig. 1.
Reference numerals:
1-fluid circulation module, 101-circulation tank, 102-filter, 103-perfusion pump, 104-slurry pump, 105-sedimentation tank;
2-four-way interface;
3-flow meter, 301-flow meter F1, 302-flow meter F2;
4-pressure sensor, 401-pressure sensor PIA1, 402-pressure sensor PIA2, 403-pressure sensor PIA3, 404-pressure sensor PIA4, 405-pressure sensor PIA5, 406-pressure sensor PIA6, 407-pressure sensor PIA7, 408-pressure sensor PIA8;
5-valve, 501-valve V1, 502-valve V2, 503-valve V3, 504-valve V4, 505-valve V5, 506-valve V6, 507-valve V7, 508-valve V8, 509-valve V9, 510-valve V10, 511-valve V11, 512-valve V12, 513-valve V13, 514-valve V14, 515-valve V15, 516-valve V16, 517-valve V17, 518-valve V18;
6-a signal downloading device;
7-a data centralized monitoring and control center;
8-test tool platform, 801-main platform, 802-lower platform, 803-telescopic mechanism, 804-fixed rod, 805-triangular hinge mechanism, 806-rod hinge mechanism, 807-rotary hinge mechanism, 808-support column, 809-slide rail, 810-water tap, 811-connecting joint, 812-high-pressure hose, 813-thrust bearing, 814-thrust block, 815-thrust rod mechanism, 816-control device, 817-heating mechanism, 818-heat preservation mechanism, 819-signal sending short circuit, 820-signal receiving short circuit, 821-power short circuit and 822-test instrument tool;
9-a collecting pipeline;
10-coiled tubing of coiled tubing;
11-automatic regulating valve.
Detailed Description
Hereinafter, a downhole tool multi-condition simulation test system and a test method of the invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
It should be noted that "first", "second", "third", "fourth", "fifth", "sixth", "V", "F", "PIA", and the like are merely for convenience of description and for convenience of distinction, and are not to be construed as indicating or implying relative importance. "upper," "lower," "inner," "outer," "left," "right," "front," "rear," "center," "bottom," and the like are merely for convenience in describing and establishing relative orientations or positional relationships, and do not indicate or imply that the referenced components must have that particular orientation or position.
FIG. 1 illustrates a schematic structural diagram of an exemplary embodiment of a downhole tool multi-condition simulation testing system of the present invention; fig. 2 shows a schematic structural diagram of the test tool platform in fig. 1.
In a first exemplary embodiment of the invention, the downhole tool multi-condition simulation test system mainly comprises a fluid circulation module, a four-way interface, a flowmeter, a pressure sensor, a signal downloading module, a centralized monitoring module, a test tool platform, a well depth simulation module and a high-pressure simulation module. As shown in fig. 1, the fluid circulation module 1 is configured to supply and circulate the circulating fluid, and an outlet of the fluid circulation module is connected to a first port of the four-way port 2. Here, the circulating fluid may be clean water, slurry, gas, or a two-phase flow in which gas is mixed with slurry, or the like.
The inlet of the well depth simulation module is connected with the second interface of the four-way interface 2, the outlet of the well depth simulation module is connected with the inlet of the test tool platform 8, and the well depth simulation module can simulate different cycle lengths.
The test tool platform 8 is connected with the third interface of the four-way interface 2 through a valve V13513 for short-distance circulation, and meanwhile, the pipeline can be connected with other outlets through a three-way joint to be used for connecting other test modules. The test tool platform comprises a vibration unit, a rotation unit, an axle load unit, a high-temperature unit and a short circuit, and can simulate the complex vibration working condition, rotation, bit pressure and high-temperature environment of the test instrument and monitor the internal state of the test instrument.
The inlet of the high-pressure simulation module is connected with the outlet of the test tool platform 8, and the outlet pipeline of the test tool platform 8 is provided with a pressure regulating valve, so that internal high-pressure conditions can be provided for test instruments and tools, and the working condition of a simulated shaft bottom can be achieved. The outlet of the high-pressure simulation module is connected with the inlet of the fluid circulation module 1, and the high-pressure simulation module can control the pressure of the testing instrument tool to simulate different high-pressure environments.
The inlet of the signal downloading module is connected with the fourth interface of the four-way interface 2, the switch is controlled by a valve V18518, and the outlet of the signal downloading module is connected with the inlet of the fluid circulation module 1. The signal downloading module comprises a signal downloading device 6 and can send control instruction signals to the testing instrument tool, and all simulation condition parameters can be adjusted according to the working conditions of the simulation object. Specifically, the signal downloading device can perform pressure relief on a main pipeline at different frequencies or different amplitudes through a relief valve in the device, so that pressure fluctuation with different frequencies and amplitudes on the main pipeline is reflected, the pressure fluctuation is transmitted to a tool of a testing instrument through circulating fluid in the pipeline, and the tool can receive command signals transmitted from a long distance (simulating a well head to transmit signals to a downhole tool instrument). The access location of this line, where the signal down-conversion means is provided, may be any available location on the main pipeline in the vicinity of the mud pump outlet.
The pressure sensor 4 and the flow meter 3 can monitor the pressure and the flow rate at the corresponding positions in real time.
The centralized monitoring module comprises a data centralized monitoring and control center 7, the data centralized monitoring and control center 7 is connected with a pressure sensor 4, a flowmeter 3 and a valve 5 in the test system, the state parameters of the multi-working-condition simulation test system and the running state parameters of test instrument tools in the test process can be monitored and collected, and all test parameters can be monitored, recorded and analyzed in real time.
In the exemplary embodiment, the test tool platform is a comprehensive test rig apparatus for launching downhole tool tools that can apply vibration simulating loads to the test tool tools in the lateral, vertical, and axial directions (X, Z, Y). The vibration unit of the test tool platform can simulate the running condition of the underground instrument tool under the underground real vibration condition. The vibration unit can include main platform, lower platform, Z to vibration mechanism, X to vibration mechanism, Y to vibration mechanism and support column. As shown in fig. 2, the support column 808 is vertically disposed on the ground and is height adjustable. The lower platform 802 is mounted on the support column 808 and has a bottom surface slidably connected to the upper end of the support column, where the upper portion of the support column may be provided with a two-way rod hinge connected to the lower platform. A plurality of groups of supporting columns can be arranged below the lower platform, and a certain distance is reserved between every two adjacent supporting columns. The major weight of the lower platform is borne by the lower support columns. As shown in fig. 2, three sets of support posts 808 are disposed below the lower platform 802. One end of the Y-direction vibration mechanism is fixedly arranged on the ground, and the other end of the Y-direction vibration mechanism is hinged with one side of the lower platform 802 to drive the lower platform to move in the Y direction so as to simulate Y-direction vibration. The main platform 801 is disposed above and parallel to the lower platform 802, and is used for fixedly disposing the testing instrument tool 822. One end of the Z-direction vibration mechanism is fixed on the lower platform 802, and the other end of the Z-direction vibration mechanism is rotatably connected with the bottom surface of the main platform 801 to drive the main platform to move in the Z direction so as to simulate Z-direction vibration. One end of the X-direction vibration mechanism is fixed on the lower platform 802, and the other end of the X-direction vibration mechanism is hinged with one side of the main platform 801 to drive the main platform to move in the X direction so as to simulate X-direction vibration. All vibration simulation parameters can be adjusted, and data monitoring is carried out through the acceleration sensor. Here, the acceleration sensor may be provided inside the test instrument tool.
In the present exemplary embodiment, as shown in fig. 2, the X-direction vibration mechanism of the test tool platform may include a telescopic mechanism 803, a fixing bar 804, a triangular hinge mechanism 805, and a bar hinge mechanism 806. The fixed rod 804 and the telescopic mechanism 803 are arranged on the left side of the lower platform 802, the fixed rod 804 is arranged on the right side of the telescopic mechanism 803, and the fixed rod and the telescopic mechanism are vertically and fixedly arranged on the upper end face of the lower platform 802. The left corner of the triangular hinge mechanism 805 is hinged to the upper end of the telescopic mechanism 803, the middle corner is hinged to the upper end of the fixed rod 804, and the right corner is hinged to one end of the rod hinge mechanism 806. The other end of the lever hinge mechanism 806 is rotatably connected to the left side of the main platform 801. The X-direction vibration is realized by rotating a triangular hinge mechanism through the vertical telescopic motion of a telescopic mechanism and driving the main platform to horizontally move along the X direction through a rod hinge mechanism so as to simulate the X-direction vibration. Here, a plurality of sets of X-direction vibration mechanisms may be provided below the left side of the main platform.
In the present exemplary embodiment, as shown in fig. 2, the Y-direction vibration mechanism of the test tool platform may include a telescopic mechanism 803, a fixing bar 804, a triangular hinge mechanism 805, and a bar hinge mechanism 806. The fixed rod 804 and the telescopic mechanism 803 are vertically and fixedly arranged on the ground, and the fixed rod is positioned behind the telescopic mechanism. Dead lever and telescopic machanism all are located platform front side below down. Looking at the test tool platform in fig. 2 from the right perspective, in the Y-direction vibration mechanism, one corner of the left side of the triangular hinge mechanism 805 is hinged to the upper end of the telescopic mechanism 803, the middle corner is hinged to the upper end of the fixed rod 804, and the right corner is hinged to one end of the rod hinge mechanism 806. The other end of the lever hinge mechanism 806 is rotatably connected to the front side of the lower platform 802. The Y-direction vibration is realized by driving the triangular hinge mechanism to rotate through the lifting of the telescopic mechanism and driving the lower platform to horizontally move along the Y direction through the rod hinge mechanism so as to simulate the Y-direction vibration. The vertical telescopic motion of the telescopic mechanism can be converted into the Y-direction horizontal movement of the lower platform through the triangular hinge mechanism and the rod hinge mechanism so as to simulate Y-direction vibration. Here, a plurality of sets of Y-direction vibration mechanisms may be provided below the front side of the lower stage. As shown in fig. 2, three sets of Y-directional vibration mechanisms are provided below the front side of the lower platform 802.
In the present exemplary embodiment, as shown in fig. 2, the Z-vibration mechanism of the test tool platform may include a telescopic mechanism 803 and a rotary hinge mechanism 807. The telescopic mechanism 803 is vertically and fixedly arranged on the upper end face of the lower platform 802. One end of the rotary hinge mechanism 807 is hinged with the upper end of the telescopic mechanism 803, and the other end is hinged with the lower end face of the main platform 801. Here, a hinge may be provided above the swivel hinge mechanism to constitute a two-way lever hinge (not shown in the drawings) to ensure that the main platform can move on the slide rail in the X direction while vibrating in the Z direction. The Z-direction vertical vibration of the main platform can be realized through the telescopic motion of the telescopic rod mechanism. When the test tool platform vibrates up and down, the main platform can be ensured to be in the horizontal plane position by arranging the rotary hinge mechanism.
In the exemplary embodiment, as shown in fig. 2, a slide rail 809 may be provided on the X-direction side of the main platform 801, which can ensure X-direction vibration of the main platform on a horizontal plane. The lower platform 802 may have a slide rail 809 on the Y-side, and the slide rail on the lower platform is horizontally connected to the ground through a base fixture (not shown), so as to ensure the Y-vibration of the main platform on the horizontal plane. Here, the slide rail that sets up on the lower platform can bear the weight of lower platform through being connected with basic fixing device, reaches the supporting role of support column.
In the present exemplary embodiment, as shown in fig. 2, the rotation unit of the test tool platform may include a water tap 810. The faucet 810 is connected to the upstream end of the test instrument tool 822 by a connector fitting 811. The water faucet can apply rotating speed to the testing instrument tool, and rotation control of the testing instrument tool is achieved. The faucet 810 also directs the circulating fluid from the circulating line to the test instrument tool. The ends of the test instrument tool 822 are connected to an external circulation line by high pressure hoses 812. As shown in FIG. 1, a valve V14514 is provided on the inlet line of the test instrument tool to control the flow of circulating fluid into the test instrument tool.
In the present exemplary embodiment, as shown in fig. 2, the short of the test tool platform may include a signal send short 819, a signal receive short 820, and a power short 821. The signal sending short circuit 819 and the signal receiving short circuit 820 are sequentially arranged at the upstream end of the testing instrument tool 822, and the signal receiving short circuit 820 is connected with the testing instrument tool 822. The signaling short 819 enables remote transmission of parameter data to the signal receiving short 820 for monitoring of internal state parameters of the test instrumentation tool 822. The signal receiving short circuit 820 can collect the running state parameters of the tester tool 822 in real time and display and analyze the parameters through the centralized data monitoring and control center 7 in fig. 1. The signal receiving short circuit 820 can also receive a control signal from the signal downloading device 6 in fig. 1, and the corresponding state control is carried out on the test instrument tool through receiving the control signal. The power short 821 can provide electric energy for the testing instrument tool 822, and the live-line operation of the testing instrument tool under the rotary vibration working condition is realized through the external electric short. The setting position of the power short circuit can be not specially limited, and the power short circuit can be positioned at any available position on a test tool platform, so that power supply to a test instrument tool can be realized. Preferably, the power short 821 may be disposed at a downstream end of the test instrument tool 822. Here, the power supply short circuit may be a battery or a short circuit such as turbine power generation.
In the present exemplary embodiment, as shown in fig. 2, the high temperature unit of the test tool platform may include a heat retention mechanism 818 and a heating mechanism 817. A heating mechanism 817 is disposed outside the test instrument tool 822 to provide temperature conditions to the exterior of the test instrument tool. Here, the heating means may be any of various known heating means such as electric heating, electromagnetic heating, or steam heating. The heat retention mechanism 818 is disposed outside the heating mechanism 817 and is capable of temperature control of the test instrument tool. The heat preservation mechanism and the heating mechanism are used for controlling the temperature of the testing instrument tool and realizing the simulation of the high-temperature environment of the testing instrument tool.
In the exemplary embodiment, the axle load unit of the test tool platform may apply weight-on-bit load to the test instrument tool to simulate downhole drilling conditions. As shown in fig. 2, the axle load unit may include a thrust bearing 813, a thrust block 814, a thrust rod mechanism 815, and a control device 816. Among them, the thrust bearing 813 may be provided with a plurality of sets, symmetrically disposed at both ends of the testing instrument tool 822 to ensure the rotation level of the testing instrument tool. Thrust block 814 is disposed at the downstream end of the test instrument tool 822 and to the right of thrust bearing 813. The thrust rod mechanism 815 and the control device 816 are sequentially arranged on the right side of the thrust block 814, the thrust rod mechanism 815 can apply axial thrust to the thrust block 814, and the control device 816 can control the magnitude of the application force of the thrust rod mechanism 815. Axial thrust is ultimately applied to the trial instrument tool 822 through the thrust block 814, enabling simulation of weight-on-bit loading.
In the present exemplary embodiment, as shown in FIG. 1, the well depth simulation module may include a converging line 9 and more than one set of coiled tubing coils 10. Wherein, each set of coiled tubing coil pipe in more than one set of coiled tubing coil pipe is established ties each other, and each set of coiled tubing coil pipe sets up an export, and every export all communicates with the manifold way. The outlet of the manifold line 9 communicates with the inlet of the test tool platform 8. All the pipelines of the coiled tubing coil 10 are connected into the test tool platform 8 through the collecting pipeline 9 for cycle test. Here, the outlet of each set of continuous oil pipe coil can also be directly connected with a test tool platform for cycle test. As shown in fig. 1, the well depth simulation module may include a collecting pipe 9 and six sets of coiled continuous tubing 10, and a valve V12512 is disposed on an outlet pipe of the well depth simulation module to control the opening and closing of the collecting pipe. A switching valve and a pressure sensor 4 are further arranged on the collecting pipeline 9 between the outlets of the two adjacent coiled tubing pipes 10, and the pressure sensor 4 can monitor the pressures of different pipe sections in real time. As shown in fig. 1, a valve V3503 and a pressure sensor PIA4404 are arranged on a collecting pipeline between the outlets of the first set of coiled tubing and the second set of coiled tubing, a valve V5505 and a pressure sensor PIA5405 are arranged on a collecting pipeline between the outlets of the second set of coiled tubing and the third set of coiled tubing, a valve V7507 and a pressure sensor PIA6406 are arranged on a collecting pipeline between the outlets of the third set of coiled tubing and the fourth set of coiled tubing, a valve V9509 and a pressure sensor PIA7407 are arranged on a collecting pipeline between the outlets of the fourth set of coiled tubing and the fifth set of coiled tubing, and a valve V11511 and a pressure sensor PIA8408 are arranged on a collecting pipeline between the outlets of the fifth set of coiled tubing and the sixth set of coiled tubing. Switch valves are arranged on the inlet and the outlet of each set of coiled tubing coil, as shown in fig. 1, a valve V1501 is arranged on the inlet pipeline of the first set of coiled tubing coil, a valve V2502 is arranged on the inlet pipeline of the second set of coiled tubing coil (which is the outlet pipeline of the previous set of coiled tubing coil at the same time), a valve V4504 is arranged on the inlet pipeline of the third set of coiled tubing coil, a valve V6506 is arranged on the inlet pipeline of the fourth set of coiled tubing coil, a valve V8508 is arranged on the inlet pipeline of the fifth set of coiled tubing coil, and a valve V10510 is arranged on the inlet pipeline of the sixth set of coiled tubing coil. Through the valve switching arrangement among the coiled tubing coils, the requirement of the cycle length at different distances can be met.
The long-distance circulating pipeline consists of a plurality of sets of coiled tubing coils, and the test requirements on circulating lengths at different distances can be realized by adopting a series combination mode of the coiled tubing coils, so that the simulated circulating conditions of different well depths of test instrument tools are met. As shown in fig. 1, taking a set of coiled tubing coil as an example of a 500m long coil, if only 500m circulation distance is needed, the circulating fluid enters the well depth simulation module through the valve V1501, and after 500m circulation through the first set of coiled tubing coil, the circulating fluid directly enters the test tool platform 8 through the opened valve V3503, valve V5505, valve V7507, valve V9509, valve V11511 and valve V12512 because the valve V2502, valve V4504, valve V6506, valve V8508 and valve V10510 are in the closed state. If a 1000m circulation distance needs to be set, the valve V1501, the valve V2502, the valve V5505, the valve V7507, the valve V9509, the valve V11511 and the valve V12512 are opened, and the valve V3503, the valve V4504, the valve V6506, the valve V8508 and the valve V10510 are closed. If a 1500m cycle distance is desired, valve V4504 can be opened further and valve V5505 closed. By parity of reasoning, the pipeline switching with different circulation distances can be completed by opening or closing the valve.
In the present exemplary embodiment, the high pressure simulation module may be a section of parallel piping, as shown in fig. 1. One of the parallel pipelines is provided with a valve V15515, and a valve V15515 controls the opening and closing of the pipelines. And the other pipeline is provided with an automatic regulating valve 11 and a valve V16516 for controlling the circulating flow rate and the high-pressure environment simulation of the test tool platform.
In the present exemplary embodiment, as shown in fig. 1, a flow meter 3 may be provided on the outlet line of the high-pressure simulation module and the inlet line of the signal download module for monitoring the flow rate in real time. And a flow meter F1301 is arranged on an outlet pipeline of the high-pressure simulation module, and a flow meter F2302 is arranged on an inlet pipeline of the signal downloading device 6.
In the present exemplary embodiment, as shown in fig. 1, fluid circulation module 1 may include a circulation tank 101, a filter 102, a perfusion pump 103, a mud pump 104, and a sedimentation tank 105. Wherein, the filter 102, the perfusion pump 103 and the mud pump 104 are sequentially arranged on a pipeline of the circulation tank 101 connected with the first interface of the four-way interface 2, and the filter 102 is close to the outlet of the circulation tank 101. Two sedimentation tanks 105 can be arranged and are respectively arranged on an outlet pipeline of the high-pressure simulation module and an outlet pipeline of the signal downloading device 6, and the sedimentation tank 105 is connected with the circulation tank 101.
Circulating fluid is stored in circulation tank 101 and enters mud pump 104 through filter 102 and perfusion pump 103, and valve V17517 controls the circulating fluid entering mud pump 104. The circulating fluid of the test system is input into the pipeline through a mud pump 104, and a four-way interface 2 is arranged at the outlet of the mud pump 104. Circulating fluid can enter different test modules through the four-way interface 2 to carry out different simulation tests on test instrument tools. The circulating fluid discharged by the high-pressure simulation module and the signal downloading device 6 flows into the sedimentation tank 105 to be settled and then can return to the circulating tank 101 again for the next circulation.
In a second exemplary embodiment of the present invention, the downhole tool multi-condition simulation test method may be implemented by the downhole tool multi-condition simulation test system described in the first exemplary embodiment, and the test method mainly includes the steps of:
setting various test parameters for testing the downhole instrument tool;
adjusting corresponding well depth simulation length distance, vibration simulation frequency and amplitude, drilling simulation thrust, drilling simulation rotation speed, high-temperature simulation temperature and high-pressure simulation circulating pressure in the test system;
circulating fluid circularly flows in the test system, and reliability and functionality tests of the underground instrument under the comprehensive complex working conditions of simulating deep wells and underground wells such as long distance, high temperature, high pressure, rotation, vibration, drilling pressure and the like are carried out;
collecting and recording flow and pressure data on each pipeline in the test process;
and changing test parameters, repeating the test for multiple times, and recording test data.
In summary, the advantages proposed by the present invention include at least one of the following:
(1) The multi-working-condition simulation test system for the underground instrument and the tool can effectively simulate conditions such as high temperature, high pressure, rotation, vibration, circulation and the like, test and detect comprehensive reliability of the underground electronic circuit instrument and the tool, and provide test conditions for research and development and factory test of instrument and tool products;
(2) The multi-working-condition simulation test system for the downhole instrument tool can save the field test cost of the downhole instrument tool, reduce the safety risk of directly carrying out the field test and improve the success probability of the downhole instrument tool in field application;
(3) Various test parameters in the multi-working-condition simulation test method of the downhole tool can be adjusted, the working states of the downhole tool under different well depths (temperature, pressure and cycle length), different cycle discharge capacities, different rotating speeds, different vibration types and intensities and different bit pressures can be adjusted, and all test data can be monitored, recorded and analyzed in real time.
Although the downhole tool multi-condition simulation test system and test method of the present invention have been described above in connection with exemplary embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope thereof as defined in the following claims.
Claims (15)
1. A multi-working-condition simulation test system for downhole instruments and tools is characterized by comprising a fluid circulation module, a four-way interface, a flowmeter, a pressure sensor, a signal downloading module, a centralized monitoring module, a test tool platform, a well depth simulation module and a high-pressure simulation module, wherein,
the fluid circulation module is configured to supply and circulate a circulating fluid;
the first interface of the four-way interface is connected with the outlet of the fluid circulation module;
the inlet of the well depth simulation module is connected with the second interface of the four-way interface, the outlet of the well depth simulation module is connected with the inlet of the test tool platform, and the well depth simulation module can simulate different cycle lengths;
the test tool platform is connected with the third interface of the four-way interface, comprises a vibration unit, a rotation unit, an axle load unit, a high-temperature unit and a short circuit, and can simulate the vibration, rotation, bit pressure and high-temperature environment of the test instrument and monitor the internal state of the test instrument;
the inlet of the high-pressure simulation module is connected with the outlet of the test tool platform, the outlet of the high-pressure simulation module is connected with the inlet of the fluid circulation module, and the high-pressure simulation module can control the pressure of a test instrument tool to simulate a high-pressure environment;
the inlet of the signal downloading module is connected with the fourth interface of the four-way interface, the outlet of the signal downloading module is connected with the inlet of the fluid circulation module, and the signal downloading module can send a control instruction signal to a test instrument tool;
the pressure sensor and the flowmeter can monitor the pressure and the flow at corresponding positions in real time;
the centralized monitoring module can monitor and collect the state parameters of the multi-working-condition simulation test system and the running state parameters of the test instrument tool in the test process.
2. The downhole tool multi-condition simulation testing system of claim 1, wherein the vibration unit comprises a main platform, a lower platform, a Z-direction vibration mechanism, an X-direction vibration mechanism, a Y-direction vibration mechanism and a support column, wherein,
the supporting column is vertically arranged and adjustable in height, the lower platform is arranged on the supporting column, and the bottom surface of the lower platform is connected with the upper end of the supporting column in a sliding manner;
one end of the Y-direction vibration mechanism is fixedly arranged on the ground, and the other end of the Y-direction vibration mechanism is hinged with one side of the lower platform so as to drive the lower platform to move in the Y direction to simulate Y-direction vibration;
the main platform is arranged above the lower platform and is parallel to the lower platform, and the main platform is used for fixedly arranging a test instrument tool;
one end of the Z-direction vibration mechanism is fixed on the lower platform, and the other end of the Z-direction vibration mechanism is rotatably connected with the bottom surface of the main platform so as to drive the main platform to move in the Z direction to simulate Z-direction vibration;
one end of the X-direction vibration mechanism is fixed on the lower platform, and the other end of the X-direction vibration mechanism is hinged with one side of the main platform so as to drive the main platform to move in the X direction to simulate X-direction vibration.
3. The downhole tool multi-condition simulation test system according to claim 2, wherein the X-direction vibration mechanism comprises a telescopic mechanism, a fixed rod, a triangular hinge mechanism and a rod hinge mechanism, wherein the fixed rod and the telescopic mechanism are vertically and fixedly arranged on the upper end surface of the lower platform, a left corner of the triangular hinge mechanism is hinged to the upper end of the telescopic mechanism, a middle corner of the triangular hinge mechanism is hinged to the upper end of the fixed rod, a right corner of the triangular hinge mechanism is hinged to one end of the rod hinge mechanism, and the other end of the rod hinge mechanism is rotatably connected to the side edge of the main platform.
4. The downhole tool multi-condition simulation test system according to claim 2, wherein the Y-direction vibration mechanism comprises a telescopic mechanism, a fixed rod, a triangular hinge mechanism and a rod hinge mechanism, wherein the fixed rod and the telescopic mechanism are vertically and fixedly arranged on the ground, a left corner of the triangular hinge mechanism is hinged to the upper end of the telescopic mechanism, a middle corner of the triangular hinge mechanism is hinged to the upper end of the fixed rod, a right corner of the triangular hinge mechanism is hinged to one end of the rod hinge mechanism, and the other end of the rod hinge mechanism is rotatably connected to the side of the lower platform.
5. The downhole instrument tool multi-condition simulation test system according to claim 2, wherein the Z-direction vibration mechanism comprises a telescopic mechanism and a rotary hinge mechanism, wherein the telescopic mechanism is vertically and fixedly arranged on the upper end surface of the lower platform, one end of the rotary hinge mechanism is hinged with the upper end of the telescopic mechanism, and the other end of the rotary hinge mechanism is hinged with the lower end surface of the main platform.
6. The downhole tool multi-condition simulation test system according to claim 2, wherein a slide rail is arranged on the X-direction side surface of the main platform to ensure the X-direction vibration of the main platform on a horizontal plane;
and a sliding rail is arranged on the Y-direction side surface of the lower platform to ensure the Y-direction vibration of the main platform on the horizontal plane.
7. The downhole tool multi-condition simulation test system according to claim 1, wherein the rotation unit comprises a water tap, the water tap is arranged between the upstream end of the test tool and the circulation pipeline and can control the test tool to rotate.
8. The downhole tool multi-condition simulation testing system of claim 1, wherein the short circuit comprises a signal sending short circuit, a signal receiving short circuit and a power short circuit, wherein,
the signal sending short circuit and the signal receiving short circuit are arranged at the upstream end of the test instrument tool, and the signal sending short circuit and the signal receiving short circuit can monitor and control the test instrument tool;
the power short circuit can provide the electric energy for test instrument.
9. The downhole tool multi-condition simulation testing system according to claim 1, wherein the high temperature unit comprises a heat preservation mechanism and a heating mechanism, and the heating mechanism and the heat preservation mechanism are arranged outside the testing tool to control the temperature of the testing tool.
10. The downhole tool multi-condition simulation testing system of claim 1, wherein the axle load unit comprises a thrust bearing, a thrust block, a thrust rod mechanism and a control device, wherein,
the thrust bearings are arranged at two ends of the test instrument tool to ensure the rotation level of the test instrument tool;
the thrust block is arranged at the downstream end of the test instrument tool and is positioned on the right side of the thrust bearing;
the right side of the thrust block is sequentially provided with a thrust rod mechanism and a control device, the thrust rod mechanism can apply axial thrust to the thrust block, and the control device can control the magnitude of the applied force.
11. The downhole tool multi-condition simulation test system according to claim 1, wherein the well depth simulation module comprises a gathering pipeline and more than one set of coiled tubing coils, wherein each coiled tubing coil in the more than one set of coiled tubing coils is connected in series with each other and the outlet of each coiled tubing coil is communicated with the gathering pipeline, and the inlet and the outlet of each coiled tubing coil are provided with switch valves;
and an outlet of the gathering pipeline is communicated with an inlet of the test tool platform, and a switch valve and a pressure sensor are arranged between the outlets of the two adjacent coiled tubing coils on the gathering pipeline.
12. The downhole instrument tool multi-condition simulation test system according to claim 1, wherein the high-pressure simulation module is a section of parallel pipelines, one pipeline of the parallel pipelines is provided with a valve, the other pipeline is provided with an automatic regulating valve and a valve, and the automatic regulating valve can control the circulating flow rate to realize the simulation of the high-pressure condition of the test instrument tool.
13. The downhole tool multi-condition simulation test system according to claim 1, wherein the flow meter is arranged on an outlet pipeline of the high-pressure simulation module and an inlet pipeline of the signal downloading module for monitoring flow in real time;
the pressure sensors are arranged on an inlet pipeline and an outlet pipeline of the test tool platform and an inlet pipeline of the signal downloading module and are used for monitoring pressure in real time.
14. The downhole tool multi-regime simulation test system of claim 1, wherein the fluid circulation module comprises a circulation tank, a filter, a perfusion pump, a mud pump, and a settling tank, wherein,
the filter, the perfusion pump and the mud pump are sequentially arranged on a pipeline connected with the first interface of the four-way interface and the circulation tank, and the filter is close to the outlet of the circulation tank;
the sedimentation tank is arranged on an outlet pipeline of the high-pressure simulation module and an outlet pipeline of the signal downloading module.
15. A downhole tool multi-condition simulation test method, which is implemented by the downhole tool multi-condition simulation test system according to any one of claims 1 to 14, and comprises the following steps:
setting various test parameters for testing the downhole instrument tool;
adjusting corresponding well depth simulation length distance, vibration simulation frequency and amplitude, drilling simulation thrust, drilling simulation rotation speed, high-temperature simulation temperature and high-pressure simulation circulating pressure in the test system;
circulating fluid in the test system to perform functionality and reliability tests on the downhole instrument;
collecting and recording flow and pressure data on each pipeline in the test process;
and changing test parameters, repeating the test for multiple times, and recording test data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118066184A (en) * | 2024-04-19 | 2024-05-24 | 中海油田服务股份有限公司 | Modular fluid circulation test system |
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