CN210829231U - Offshore oilfield downhole electric pump working condition testing pipe column and testing device - Google Patents
Offshore oilfield downhole electric pump working condition testing pipe column and testing device Download PDFInfo
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- CN210829231U CN210829231U CN201921158536.0U CN201921158536U CN210829231U CN 210829231 U CN210829231 U CN 210829231U CN 201921158536 U CN201921158536 U CN 201921158536U CN 210829231 U CN210829231 U CN 210829231U
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Abstract
The utility model discloses a marine oil field is charge pump operating mode test tubular column and testing arrangement in pit, tubular column include oil pipe, still include the downhole charge pump operating mode testing arrangement that connects gradually from bottom to top, dive oily motor, protector, shaft coupling, centrifugal pump, the oil pipe lower extreme is connected through passing the pressure nipple joint to the centrifugal pump upper end. The device also comprises a pressure transmission pipeline, wherein one end of the pressure transmission pipeline is connected to a radial through hole formed in the pressure transmission nipple through an NPT joint, and the other end of the pressure transmission pipeline is connected to an inlet pressure sensor of the underground electric pump testing device through the NPT joint. One end of the signal cable is connected to a pressure transmission interface of the underground electric pump testing device through the NPT connector, and the other end of the signal cable is connected to an intelligent control center on the ground through the NPT connector. The signal cable is independently arranged, the signal cable is used for providing power for the underground multi-parameter testing device and simultaneously used for underground and aboveground signal transmission, and the testing signal can be transmitted to an indoor console or a mobile phone terminal in a wired or wireless mode.
Description
Technical Field
The utility model belongs to the technical field of oil development underground test tubular column technique and specifically relates to an offshore oil field underground electric pump operating mode test tubular column and testing arrangement.
Background
At present, for monitoring the working fluid level of an oil well, the offshore oil field is generally applied to a capillary pressure measuring technology of an underground electric pump, only a few oil wells adopt the dynamic monitoring technology, most oil wells still rely on current cards to monitor the working condition, the two methods for judging the running state of the underground electric pump and analyzing the fault reason are single, and the offshore oil field is difficult to adapt to the high-quality development requirement of the oil field. With the development of the working condition test of the underground electric pump, the offshore oil field is correspondingly introduced and the technology is applied on site, a power supply cable is adopted to provide power for a testing device, and simultaneously a testing signal is uploaded by the cable, but due to the influence of a 'one-to-one-control' power supply mode of the offshore oil field, the testing signal uploading of the technology has serious interference, testing data cannot be read normally, and the development of the technology is severely restricted to a certain extent, so that the research of the working condition testing device of the underground electric pump suitable for the development requirement of the offshore oil field is particularly important.
Through retrieval, the publication of an authorization notice number CN203783562U and an authorization notice date 2014.08.20 discloses a downhole multi-parameter monitoring device for an electric submersible pump, wherein a downhole working condition instrument is connected with the tail part of a motor of the electric submersible pump, and a star point channel is formed by a star point of the motor, a three-phase winding of the motor, a three-phase power cable, a choke and a cable sheath. The inlet temperature, the inlet pressure, the vibration information of pump are direct through installing the sensor measurement inside the operating mode appearance in the pit, and the outlet pressure of pump then is connected to the sensor measurement of installing in the inside operating mode appearance in the pit through the pressure transmission pipeline, and temperature sensor is used for monitoring motor winding temperature, and it installs near the inside winding of motor, and the data of gathering of this system are through converting into current signal, load to three-phase power cable through the motor star point, and the ground host computer is sent to the signal in the pit behind ground choke. The testing device can maximize the utilization of the power cable to a certain extent, but the application field of the mode is limited, the testing device is particularly not suitable for the current development situation on the victory sea at present, and the testing signal interference is serious.
Through retrieval, the published documents of an authorization notice number CN203594415U and an authorization notice date 2014.05.14 disclose an electric submersible pump oil production control system based on underground multi-parameter real-time monitoring, the system comprises a transformer, a data acquisition control device, a multi-stage centrifugal pump, a motor protector, a motor, a correcting device, an underground multi-parameter testing device and the like, the problems of no load, overload, overheating and the like of the motor caused by the fact that an electric submersible pump well cannot accurately monitor the working fluid level of an oil well in real time are solved, and the real-time and on-line monitoring of a plurality of parameters such as underground temperature, pressure, water content, working fluid level and the like is realized. However, the testing mode still adopts a star point testing mode, and the testing signals are uploaded simultaneously through the power cable, so that the method is not suitable for the development mode of 'one-variable-multiple-control' at the sea at present.
Application No.: 201710795829.9 submersible electric pump underground tester, including tester and submersible electric pump's main part, the protective housing of tester is the arc shell, first through-hole is all seted up at the both ends about the arc shell, the equal fixed mounting arc sleeve in outer end of first through-hole, two arc sleeve symmetry installations, the arc sleeve is coaxial with first through-hole central line, be equipped with horizontal interior thread bush in the arc shell, interior thread bush installs on the inner wall of arc shell through two axle beds, fixed suit first bevel gear is sheathe in to the interior thread bush, the second through-hole is seted up to the leading flank of arc shell, be equipped with the pivot in the second through-hole, pivot and second through-hole bearing swing joint, the inner fixed mounting second bevel gear of pivot, second bevel gear and the meshing cooperation of first bevel gear, the rocking handle is installed to the outer end of pivot. According to the invention, the protective shell of the underground tester for the electric submersible pump is designed to be arc-shaped, so that the protective shell can be better attached to the side surface of the main body of the electric submersible pump, the tester is more convenient to mount and dismount, and the tester body is not easy to damage in the dismounting process.
Application No.: 201620954290.8 discloses an oily charge pump of diving is temperature measurement pressure measuring device in pit, oily charge pump body of diving sets up in sheathed tube inside, the top of oily charge pump body of diving is equipped with wireless communication module, the bottom of oily charge pump body of diving is equipped with temperature measurement pressure measuring device, temperature measurement pressure measuring device includes the casing, the lower extreme of casing is equipped with temperature sensor, the upper end of casing is equipped with pressure relief device, pressure relief device's below is equipped with signal amplifier, signal amplifier's below is equipped with the singlechip, be equipped with pressure sensor on the shells inner wall, pressure sensor passes through wire and singlechip electric connection, temperature sensor passes through wire and singlechip electric connection. The utility model discloses a design scientific and reasonable, not only intelligent degree is higher, and the precision of testing is higher moreover, can realize helping prolonging the working life of latent oily electric pump to the long-range instant test of latent oily electric pump, and easy to assemble and dismantlement, life is longer.
Application No.: 200420085971.2 relates to a downhole intelligent multi-parameter testing device for oil field, which comprises a downhole testing device and a surface instrument remotely connected with the downhole testing device through cable or carrier transmission, wherein the underground testing device consists of a flow signal module circuit, a temperature signal module circuit, a pressure and water-containing signal module circuit, a microcontroller, other signal module circuits, an output interface module circuit, a power cable carrier modulation module circuit, a power output module circuit and a shaking transmission module circuit, the flow, temperature and pressure signal module circuit processes the signals detected by the sensor into digital signals respectively and sends the digital signals to the microcontroller for coding, the processed signals are sent to the output interface module circuit and the power output module circuit for power amplification, and finally the processed signals can be sent to the shaking transmission module circuit or the power cable carrier modulation module circuit according to the requirements of users.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an offshore oil field is charge pump operating mode test tubular column and testing arrangement in pit, through setting up a signal cable alone, except being used for providing the power for multi-parameter testing arrangement in the pit, be used for simultaneously in the pit with signal transmission aboveground, the wired or wireless mode of test signal accessible transmits to indoor control cabinet or cell-phone terminal.
In order to achieve the purpose, the utility model discloses a following technical scheme, a marine oil field is charge pump operating mode test tubular column in pit, including oil pipe, still include the charge pump operating mode testing arrangement in pit, the oily motor of diving, protector, shaft coupling, the centrifugal pump that connect gradually from bottom to top, the oil pipe lower extreme is connected through passing the pressure nipple joint to the centrifugal pump upper end.
And the oil pipe is also connected with a cable packer and an underground safety valve, wherein the cable packer is positioned below the underground safety valve.
The testing device further comprises a pressure transmission pipeline, one end of the pressure transmission pipeline is connected to a radial through hole formed in the pressure transmission nipple through an NPT joint, and the other end of the pressure transmission pipeline is connected to a pressure transmission interface of the underground electric pump testing device through the NPT joint.
The underground electric pump testing device is characterized by further comprising a signal cable and an intelligent control center, wherein one end of the signal cable is connected to a cable interface of the underground electric pump testing device through an NPT connector, and the other end of the signal cable is connected to the intelligent control center on the ground through the NPT connector.
Still include power cable, power cable one end is passed through cable joint and is connected in latent oily motor, and the other end is connected in the intelligent control center on ground.
The hydraulic control device is characterized by further comprising a hydraulic control pipeline, the lower end of the hydraulic control pipeline is respectively connected with the underground safety valve and the cable packer, and the upper end of the hydraulic control pipeline penetrates through the wellhead to be connected to the hydraulic control device on the ground.
The underground electric pump working condition testing device comprises an upper joint, a pressure transmission interface, a cable interface, a shell, a pressure sensor, a mainboard, a temperature sensor, a vibration sensor, a leakage current sensor, a shock pad, a fixing sleeve and a lower joint, wherein the upper port of the shell is connected with the solid upper joint, the lower port of the shell is connected with the solid lower joint, the inner wall of the shell is provided with the fixing sleeve, the lower end surface of the fixing sleeve is pressed on the shock pad, the inner wall of the fixing sleeve is provided with an outlet pressure sensor, the temperature sensor, an xy-axis vibration sensor, the leakage current sensor and an inlet pressure sensor, all the sensors are connected with the 21PLC mainboard, the fixing sleeve and the shell are simultaneously provided with communicated inlets, the position where the inlet pressure sensor is arranged is positioned at the inlet of the fixing sleeve, the fixing sleeve and the shell are also simultaneously provided with the pressure, the inlet of the fixed sleeve is lower than the outlet of the fixed sleeve, and the shell is also provided with a cable interface.
In order to achieve the above object, the present invention adopts the following technical solution, a device for testing the working condition of an underground electric pump, the device for testing the working condition of the underground electric pump comprises an upper joint, a pressure transmission interface, a cable interface, a housing, a pressure sensor, a main board, a temperature sensor, a vibration sensor, a leakage current sensor, a shock pad, a fixed sleeve, and a lower joint, wherein the upper port of the housing is connected with the solid upper joint, the lower port of the housing is connected with the solid lower joint, the fixed sleeve is mounted on the inner wall of the housing, the lower end surface of the fixed sleeve is pressed on the shock pad, an outlet pressure sensor, a temperature sensor, an xy-axis vibration sensor, a leakage current sensor, and an inlet pressure sensor are mounted on the inner wall of the fixed sleeve, all the sensors are connected with the 21PLC main board, the fixed sleeve, the fixed sleeve and the shell are also provided with pressure transmission interfaces communicated with each other, wherein the position where the outlet pressure sensor is installed is located at the pressure transmission interface of the fixed sleeve, the inlet of the fixed sleeve is lower than the outlet of the fixed sleeve, and the shell is also provided with a cable interface.
Compared with the prior art, the utility model following beneficial effect has:
1. the test pipe column can test and upload a test signal of the working condition of the electric pump in real time, can make the production dynamic state of an oil reservoir more clear and provide a fault early warning signal;
2. the testing device adopts a wired testing mode, so that the testing signal is more reliable, and the testing device is suitable for a one-variable multi-control mode on the sea;
3. the testing pipe column is provided with a wireless transmission device on the ground to realize mobile phone terminal receiving, and is also provided with an automatic closed-loop control system to realize intelligent regulation and electric control.
Drawings
FIG. 1 is a schematic structural view of a testing pipe column for testing the working condition of an underground electric pump of an offshore oilfield;
FIG. 2 is a schematic view of a tool of the device for testing the working condition of the downhole electric pump;
fig. 3 is a connection block diagram of the principle module of the intelligent control center circuit.
In the figure: the device comprises a 1 underground electric pump working condition testing device, 2 signal cables, 3 power cables, 4 submersible motors, 5 protectors, 6 couplers, 7 centrifugal pumps, 8 pressure transmission pipelines, 9 pressure transmission short sections, 10 oil pipes, 11 cable passing packers, 12 underground safety valves, 13 hydraulic control pipelines, 14 intelligent control centers, 15 display terminals, 16 upper connectors, 17 pressure transmission interfaces, 18 cable interfaces, 19 shells, 20 outlet pressure sensors, 21PLC mainboards, 22 temperature sensors, 23 xy-axis vibration sensors, 24 leakage current sensors, 25 inlet pressure sensors, 26 lower connectors, 27 shock pads, 28 fixing sleeves, 29 pressure signal modules, 30 current signal modules, 31 vibration signal modules, 32 temperature signal modules, 33 memories, 34 output modules and 35 electric pump controllers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution:
the utility model provides a marine oil field is charge pump operating mode test tubular column in pit, includes charge pump testing arrangement 1 in the pit, signal cable 2, power cable 3, latent oily motor 4, protector 5, shaft coupling 6, centrifugal pump 7, pass pressure pipeline 8, pass pressure nipple joint 8, oil pipe 10, cross cable packer 11, downhole safety valve 12, hydraulic control pipeline 13, intelligent control center 14, display terminal 15 etc, charge pump testing arrangement 1 in the pit connect in 4 lower extremes of latent oily motor, protector 5, shaft coupling 6, centrifugal pump 7 and pass the pressure nipple joint and connect gradually, pass the pressure nipple joint with cross cable packer 11 and pass through oil pipe 10 and connect, downhole safety valve 12 set up in passing cable packer upper end. The protector is a device for protecting the motor, motor oil is filled in the protector, and the protector belongs to the known technology.
One end of the pressure transmission pipeline 8 is connected to the pressure transmission nipple through an NPT joint, and the other end of the pressure transmission pipeline is connected to a pressure transmission interface 17 of the underground electric pump testing device through the NPT joint, namely an outlet pressure sensor 20, a temperature sensor 22, an xy-axis vibration sensor 23, a leakage current sensor 24 and an inlet pressure sensor 25 of the underground electric pump testing device;
one end of the signal cable 2 is connected with a cable interface 18 of the underground electric pump testing device 1 through an NPT joint, and the other end of the signal cable is connected with an intelligent control center 14 on the ground through an NPT joint;
one end of the power cable 3 is connected with the submersible motor 4 through a special cable joint, and the other end is connected with an intelligent control center 14 on the ground;
the hydraulic control pipeline 13 is respectively connected with the underground safety valve 12 and the over-cable packer 11, passes through a wellhead and is connected to the hydraulic control device 1 on the ground;
as shown in fig. 3, the intelligent control center 14, that is, the control cabinet in the figure, has functions of data receiving, sending, processing and automatic intelligent control, and can convert the current signal transmitted from the signal cable into a digital signal, so as to facilitate ground display. Meanwhile, the closed-loop control system is integrated in the intelligent control center, so that signals received underground can directly control the variable-frequency control cabinet of the electric pump, and variable-speed regulation of the electric pump or shutdown of the electric pump is realized. The pressure, current, vibration and temperature signals measured by the downhole electric pump testing device 1 are respectively connected to a pressure signal module 29, a current signal module 30, a vibration signal module 31 and a temperature signal module 32 of the intelligent control center 14 through signal cables 2. The processed information is stored through the memory 33, the test signal can be transmitted to an indoor console or a mobile phone terminal in a wired or wireless mode, and is output to the electric pump controller 35 through the output module 34, and after intelligent analysis processing, the control of the submersible motor 4 is realized.
The working condition testing device for the underground electric pump comprises an upper joint 16, a pressure transmission interface 17, a cable interface 18, a shell 19, an outlet pressure sensor 20, a PLC (programmable logic controller) mainboard 21, a temperature sensor 22, an xy-axis vibration sensor 23, a leakage current sensor 24, an inlet pressure sensor 25, a lower joint 26, a shock pad 27 and a fixing sleeve 28. The top connection and shell threaded connection, shell and lower clutch threaded connection, fixed cover arrange the shell inside in, the shock pad arrange fixed cover lower extreme in, export pressure sensor, PLC mainboard, temperature sensor, xy axle vibration sensor, leak current sensor, entry pressure sensor rational arrangement on the PLC mainboard, the PLC mainboard be fixed in fixed sheathe in, shell upper end join in marriage and bore and pass and press interface and cable interface.
The utility model discloses a damping pad, including shell, fixed cover, inlet pressure sensor, leakage current sensor, inlet pressure sensor, fixed cover inner wall installation export pressure sensor, temperature sensor, xy axle vibration sensor, leakage current sensor, inlet pressure sensor, 21PLC mainboard are all connected to above-mentioned all sensors, the entry that is linked together is seted up simultaneously to fixed cover and shell, and the position of inlet pressure sensor installation is located the entrance of fixed cover, fixed cover and shell still set up the biography pressure interface that is linked together simultaneously, and wherein the position of outlet pressure sensor installation is located the biography pressure kneck of fixed cover, the entry of fixed cover is less than the export of fixed cover, the shell still sets up cable interface.
The working condition testing device of the downhole electric pump shown in fig. 2 is positioned at the bottommost end of the testing pipe column, and the upper connector 16 is connected to the lower end of the submersible motor. The cable interface 18 is connected with a signal cable which is connected to a wellhead through a cable packer at the upper end of the pipe column, and the signal cable provides power for the downhole multi-parameter testing device and simultaneously carries out downhole and uphole signal transmission. Since the testing device is located at the bottommost end of the testing pipe column, the inlet pressure sensor 25 directly measures the external pressure of the downhole electric pump working condition testing device, and the pressure value is used as a signal value of the pressure of the suction inlet of the centrifugal pump. For the outlet pressure value of the upper end of the centrifugal pump to be measured, a pressure transfer nipple is arranged at the upper end of the centrifugal pump 7 and is connected to an outlet pressure sensor 20 positioned behind a pressure transfer interface 17 through a pressure transfer pipeline 8, so that the outlet pressure signal value of the centrifugal pump is measured.
The implementation mode is as follows: after the tubular column targets in place down, open the relief valve in the pit, soft start electric pump switch, oily motor operation realizes oil and lifts, can real-time supervision electric pump access & exit's pressure through electric pump operating mode testing arrangement in the pit this moment, testing arrangement's temperature, motor vibrations and leakage current isoparametric, upload the intelligent control center on ground in real time through signal cable, then transmit to display terminal through wireless or wired mode, when breaking down, the inside closed-loop control system of intelligent control center can in time shut down the electric pump operation, realize burning electric pump, trouble emergence such as card electric pump, reduce the occurence of failure probability of downhole tool.
In the description of the present invention, it should be understood that the orientation indication or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a marine oil field is charge pump operating mode test tubular column in pit, includes oil pipe, its characterized in that still includes the charge pump operating mode testing arrangement in pit, oily motor, protector, shaft coupling, the centrifugal pump that connect gradually from bottom to top, the oil pipe lower extreme is connected through passing the pressure nipple joint to the centrifugal pump upper end.
2. The offshore oilfield downhole electric pump condition testing string of claim 1, wherein the tubing is further connected with a cable packer and a downhole safety valve, wherein the cable packer is located below the downhole safety valve.
3. The offshore oilfield downhole electric pump working condition testing pipe column according to claim 1 or 2, further comprising a pressure transmission pipeline, wherein one end of the pressure transmission pipeline is connected to a radial through hole formed in the pressure transmission nipple through an NPT joint, and the other end of the pressure transmission pipeline is connected to a pressure transmission interface of the downhole electric pump testing device through the NPT joint.
4. The offshore oilfield downhole electric pump working condition testing string according to claim 3, further comprising a signal cable and an intelligent control center, wherein one end of the signal cable is connected to a cable interface of the downhole electric pump testing device through an NPT joint, and the other end of the signal cable is connected to the intelligent control center on the ground through the NPT joint.
5. The offshore oilfield downhole electric pump working condition testing string as defined in claim 4, further comprising a power cable, wherein one end of the power cable is connected to the submersible motor through a cable joint, and the other end of the power cable is connected to an intelligent control center on the ground.
6. The offshore oilfield downhole electric pump working condition testing string as defined in claim 1 or 2, further comprising a hydraulic control pipeline, wherein the lower end of the hydraulic control pipeline is connected with the downhole safety valve and the cable packer respectively, and the upper end of the hydraulic control pipeline passes through the wellhead and is connected to a hydraulic control device on the ground.
7. The offshore oilfield downhole electric pump working condition testing string as defined in claim 1, wherein the downhole electric pump working condition testing device comprises an upper connector, a pressure transmission interface, a cable interface, a housing, a pressure sensor, a main board, a temperature sensor, a vibration sensor, a leakage current sensor, a shock pad, a fixing sleeve and a lower connector, wherein the upper port of the housing is connected with the solid upper connector, the lower port of the housing is connected with the solid lower connector, the fixing sleeve is mounted on the inner wall of the housing, the lower end face of the fixing sleeve is pressed on the shock pad, the inner wall of the fixing sleeve is mounted with an outlet pressure sensor, a temperature sensor, an xy-axis vibration sensor, a leakage current sensor and an inlet pressure sensor, all the sensors are connected with the 21PLC main board, the fixing sleeve and the housing are simultaneously provided with communicated inlets, and the inlet pressure sensor is mounted, the fixed sleeve and the shell are also provided with pressure transmission interfaces communicated with each other, wherein the position where the outlet pressure sensor is installed is located at the pressure transmission interface of the fixed sleeve, the inlet of the fixed sleeve is lower than the outlet of the fixed sleeve, and the shell is also provided with a cable interface.
8. The utility model provides a charge pump operating mode testing arrangement in pit, its characterized in that, charge pump operating mode testing arrangement in pit includes top connection, biography pressure interface, cable interface, shell, pressure sensor, mainboard, temperature sensor, shock transducer, leakage current sensor, shock pad, fixed cover, lower clutch, the solid top connection is connected to the shell upper port, and the solid lower clutch is connected to the port under the shell, and the fixed cover of shell inner wall installation, terminal surface are pressed on the shock pad under the fixed cover, fixed cover inner wall installation export pressure sensor, temperature sensor, xy axle shock transducer, leakage current sensor, entry pressure sensor, 21PLC mainboards are all connected to above-mentioned all sensors, the entry that is linked together is seted up simultaneously to fixed cover and shell, and the position that the entry pressure sensor installed is located the entrance of fixed cover, fixed cover and shell still set up the biography pressure interface that is linked together simultaneously, the outlet pressure sensor is arranged at a pressure transmitting interface of the fixed sleeve, an inlet of the fixed sleeve is lower than an outlet of the fixed sleeve, and the shell is further provided with a cable interface.
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| CN201921158536.0U CN210829231U (en) | 2019-07-22 | 2019-07-22 | Offshore oilfield downhole electric pump working condition testing pipe column and testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
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