WO2006075337A2 - Appareil et procede de surveillance de pompes a tige d'aspiration situees a distance - Google Patents

Appareil et procede de surveillance de pompes a tige d'aspiration situees a distance Download PDF

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Publication number
WO2006075337A2
WO2006075337A2 PCT/IN2006/000009 IN2006000009W WO2006075337A2 WO 2006075337 A2 WO2006075337 A2 WO 2006075337A2 IN 2006000009 W IN2006000009 W IN 2006000009W WO 2006075337 A2 WO2006075337 A2 WO 2006075337A2
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WIPO (PCT)
Prior art keywords
srp
information
sensor
gsm
controller
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PCT/IN2006/000009
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English (en)
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WO2006075337A3 (fr
Inventor
Ram Swarup Hargovind
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Oil And Natural Gas Corporation Limited
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Publication date
Application filed by Oil And Natural Gas Corporation Limited filed Critical Oil And Natural Gas Corporation Limited
Publication of WO2006075337A2 publication Critical patent/WO2006075337A2/fr
Publication of WO2006075337A3 publication Critical patent/WO2006075337A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions

Definitions

  • the present invention relates to a system for maintaining and monitoring extraction of oil from oil wells.
  • the maintenance and monitoring is carried out remotely, thereby reducing the expenditure and effort required for physical examination of the wells from time to time.
  • the present invention provides for an electronic monitoring system for monitoring of unmanned, remotely located Sucker Rod Pump (SRP) oil wells operating with SRP, comprising a GSM network.
  • SRP Sucker Rod Pump
  • a typical SRP operation is in the form of a rod reciprocating with a pump for an up and down motion thereof, thereby causing a pumping action that lifts oils to the surface from the sub-surface, which is usually hundreds of meters below the ground level.
  • the motor rotates a gearbox, attached to the SRP through an arm, referred to in the art as the pitman arm, which rotates in a circular motion.
  • the pitman a ⁇ n can be adjusted to achieve a desired stroke length for the SRP.
  • One full rotation of the said arm indicates one full stroke/cycle of the pumping action that brings to the surface a predictable quantum of oil.
  • Each SRP pumps oil out of a well, which is gathered at a place referred to herein as a GGS (Group Gathering Station).
  • SRP stations are monitored manually by inspectors visiting the site of the well, on a scheduled basis, to identify any problem in its operation.
  • system of monitoring leaves a lot to desire. For example, there has been no reliable means to immediately identify a problem in any SRP on an instantaneous basis. Faults are discovered only on scheduled visits, resulting in delay, thereby causing a loss in production. A number of faults may occur in the operation of the SRP, for example, tripping of the circuits is common on account of erratic power supply to remote areas where the wells are usually situated. In the event of a tripping, the SRP remains non-functional till the next scheduled visit to the disrupted site.
  • delays are caused since the inspectors, who may be improperly equipped or trained to attend to the fault, are not able to immediately detect the nature .of the fault.
  • the maintenance of the wells usually requires highly skilled engineers who cannot be expected to be a part of the inspection team.
  • the delay caused due to on- site inspection results in a delayed intimation to the operating organization, which in turn may cause disruption or delay in commitments on delivery.
  • the present invention seeks to overcome the above limitations as well as others, and presents a system with a view to effectively monitor an SRP to ensure its continuous operation, by withstanding operational problems.
  • One of the primary considerations for monitoring of SRPs is the hostile and rugged area in which they are located. Therefore, there is need for a monitoring system that withstands the harsh conditions, is low on maintenance and provides reliable performance. Further, there is need for an SRP monitoring system that overcomes the drawbacks existing in the art. In addition, there is a need for a system that is user friendly and does not require additional skill sets from the production crew other than of their existing level.
  • the present invention overcomes limitations of transmission distance and provides for an accurate and higher quality of transmission of information.
  • the limitation of distance has been completely removed and information may be safely and securely, without loss of data, be transmitted around the world.
  • the present invention provides an electronic monitoring system (EMS) for monitoring the performance of remotely located SRP oil wells.
  • EMS uses a GSM network for communicating the real time monitoring status of an SRP to one or more remote monitoring equipment.
  • 'SMS short messaging service
  • RTU remote terminal unit
  • the present invention provides an electronic monitoring system (EMS) for monitoring the performance of remotely located SRP oil wells.
  • the EMS uses a GSM network for communicating the real time monitoring status of an SRP to one or more remote monitoring equipment.
  • the EMS comprises at least one sensor coupled with each SRP for sensing motion and recording strokes of the SRP.
  • the EMS further comprises a programmable controller , for receiving data from the sensor and a motor starter panel of the SRP.
  • the programmable controller converts the received data into information in a pre-defined format and transmits it to a front-end processor (FEP) via a GSM device.
  • the FEP further transmits the information to monitoring equipments such as control room computers, pre-defined mobile phones and PDAs.
  • the information is transmitted to pre-defined terminal handheld units.
  • the present invention also provides an EMS for real time monitoring of a remotely located sucker rod pump (SRP) used for lifting oil from oil wells by reciprocation of a rod.
  • the SRP has a motor starter panel for housing a remote terminal unit for receiving information from at least one sensor coupled with the SRP for sensing temperature of the rod.
  • the sensor is positioned in vicinity of the rod and causes an" alarm when the temperature of the rod exceeds a pre-defined temperature.
  • the remote terminal unit comprises a controller for receiving data from the sensor and the motor starter panel.
  • the controller converts the received data into information in a predefined format.
  • the information is transmitted to one or both of at least one front end processor (FEP) and at least one hand held GSM enabled device, via a GSM device.
  • FEP front end processor
  • the present invention also provides an EMS for real time monitoring of a remotely located sucker rod pump (SRP) used for lifting oil from oil wells.
  • the SRP has a motor starter panel for housing a remote terminal unit for receiving information from at least one sensor for sensing level of gear oil in the SRP.
  • the sensor causes an alarm when level of gear oil falls below a pre-defined level.
  • the remote terminal unit comprises a controller for receiving data from the sensor and the motor starter panel.
  • the controller converts the received data into information in a pre-defined format.
  • the information is transmitted to one or both of front at least one end processor (FEP) and at least one hand held GSM enabled device, via a GSM device.
  • FEP front at least one end processor
  • the present invention also provides an EMS for real time monitoring of a remotely located sucker rod pump (SRP) used for lifting oil from oil wells.
  • the lifted oil is fed to at least one surface pipeline via a valve.
  • the SRP has a motor starter panel for housing a remote terminal unit for receiving information from at least one sensor coupled with the valve for sensing flow rate of oil being fed to the surface pipeline.
  • the sensor records the flow rate.
  • the remote terminal unit comprises a controller for . receiving data from the sensor and the motor starter panel.
  • the controller converts the received data into information in a pre-defined format.
  • the information is transmitted to one or both of at least one front end processor (FEP) and at least one hand held GSM enabled device, via a GSM device.
  • FEP front end processor
  • the present invention also provides an EMS for real time monitoring of a remotely located sucker rod pump (SRP) used for lifting oil from oil wells.
  • the SRP has a motor starter panel for housing a remote terminal unit for receiving information from at least one camera placed in vicinity of the SRP.
  • the camera continuously taking photographs for a pre-defined period of time upon * being actuated.
  • the camera is actuated when there is a change in a pre-defined status of the SRP and causing an alarm upon being actuated.
  • the remote terminal unit comprising a controller for receiving photographs taken by the camera, the controller converting the received photographs into a pre-defined format, the photographs being transmitted to one or both of front end processor (FEP) and hand held GSM enabled device, via a GSM device.
  • FEP front end processor
  • Fig. 1 illustrates the electronic monitoring-system in accordance with one embodiment of the present invention
  • FIG. 2 illustrates a front-end processor, in accordance with one embodiment of the present invention.
  • FIG. 3 illustrates an exemplary environment enabling the operation of the electronic monitoring system, in accordance with one embodiment of the present invention.
  • the present invention provides for a system for monitoring causes and reasons for disruption of oil production in an SRP oil well.
  • the present invention records and transmits the oil well state data for making it available in a timely, reliable and accurate fashion. Therefore, the present invention enables corresponding action for curing any detected defects to be taken.
  • Fig.- 1 illustrates the electronic monitoring system (EMS) 100 in accordance with an embodiment of the present invention.
  • the EMS 100 comprises a wireless, GSM based communication system for communicating operation status of an SRP well to monitoring operators.
  • the GSM based communication is carried out using a Remote Terminal Unit (RTU) 102.
  • RTU Remote Terminal Unit
  • the EMS 100 is enclosed in a lockable metal enclosure 104 in order to keep it protected from harsh weather, and also to prevent it from 'being damaged due to vandalism.
  • the RTU 102 comprises a programmable logic controller (PLC) 106 having an HMI (Human Machine Interface) for data text storage, coupled with a compatible GSM modem 108.
  • PLC programmable logic controller
  • HMI Human Machine Interface
  • GSM modem 108 is provided with an antenna 110.
  • PLCs are made available in the market by manufacturers such as UNITRONICS, Allen Bradely, GE and Seimens.
  • the PLC 106 may be installed in the motor starter 112 panel of each of the SRP that is to be monitored.
  • the PLC 106 may be integrated with the existing motor starter 112 panel components through a set of protection relays 114 for providing fault signal inputs.
  • the PLC 106 comprises an input unit 116 and an output unit 118.
  • the input unit 116 receives input signals from protection relays 114 and a sensor 120 mounted, preferably on the SRP skid for sensing the SRP strokes.
  • a motor rotates a gearbox 122, attached to the SRP through a pitman arm 124 that rotates in a circular motion.
  • the pitman arm 124 can be adjusted to achieve a desired stroke-length.
  • the sensor 120 is an optic sensor such as an infrared sensor.
  • the sef ⁇ or 120 may be any sensor, which can sense any discrepancies in the regular rhythm of SRP strokes.
  • RTU 102 continuously monitors the pitman arm 124 of the SRP, its pump running condition and strokes everyday. One full rotation of the pitman arm 124 indicates one full stroke/cycle of the pumping action.
  • the sensor 120 beams on the pitman arm 124.
  • the sensor 120 emits infrared light beam and senses the reflection of the infrared light whenever the beam is obstructed.
  • the sensor 120 is mounted at a place where the infrared beam gets obstructed by the rotating pitman arm 124. Each time the beam is obstructed a pulse signal is sent to the PLC input unit 1 16, as one count.
  • a counter provided with the RTU 102 accumulates the counts sequentially for a pre-defined period of time.
  • the information of the strokes counted and stored within the RTU 102 is sent as SMS to one or more predetermined control rooms and handheld mobile GSM enabled devices. In an embodiment of the present invention, counting is done for a predetermined period, for example, for 24 hrs. Once the recorded strokes are sent to the pre-defined control rooms, the system 100 automatically resets the counter to zero, after sending message from the SRP well.
  • the RTU 102 also comprises a power- supply unit 126 for powering the PLC 106.
  • the power supply unit 126 in turn is coupled to an uninterrupted power supply (UPS) 128 consolidated with a battery pack 130.
  • UPS uninterrupted power supply
  • a main power supply 132 supplies power to the UPS 128 and motor starter 112.
  • the RTU 102 is configured to generate a set of messages, preferably in text format, and communicate the same instantly, with real time stamps, to a receiver.
  • the receiver may be of any kind compatible to receive messages sent by the RTU 102. Accordingly, a receiver may be any device, which is compatible with GSM and is configured for communication.
  • a receiver may preferably be any one of a mobile phone, a computer or a PDA.
  • the messages sent by the RTU 102 may comprise any information that is critical to maintain the functional status of an SRP, and which is capable of being recorded or sensed. Such information may include information about tripping of SRP on motor overloading; tripping of SRP due to single phasing fault of power supply; main power failure; and motor gearbox belt status. For example, the breaking of a belt of the SRP results in a change in the flow of current through the motor starter 112 panel. This change in current is picked up by the relays and is communicated to the RTU 102, which in turn transmits it as information.
  • the information may also comprise running status of the SRP. Such running status information may be collected in any manner known, and includes reading of stroke count by the sensor 120.
  • the messages sent by the RTU 102 may also include the count of the numbei . of strokes per day. The number of strokes per day of an SRP well is cumulatively indicative of the quantum of oil produced.
  • the RTU 102 may take a plurality of inputs, for example, up to twenty-one (21-) digital as well as analog inputs.
  • the PLC 106 is provided with an add-on card such as an I/O card to enhance its input-output capacity.
  • a plurality of I/O cards may be added as additional hardware to the PLC 106, their number being limited by the accommodation within the PLC 106.
  • the number of inputs corresponds to the number of variables that may be monitored corresponding to the functioning of the SRP.
  • Each of tbe variables would have at least one pre-determined critical value assigned thereto anrl stored in the PLC 106. Where more than one predetermined critical value has been assigned, the message generated by the RTU 102 would be in correspondence with the highest value of the limit breached. Therefore, the Electronic monitoring system 100 is capable of monitoring several aspects of the functioning of the SRP and not just critical breakdowns.
  • the electronic monitoring system 100 of the present invention provides reports on critical malfunctions of the SRP.
  • a status report may be also be generated at regular intervals or on request.
  • a report may be generated on making a request in any one of a plurality of configured communication modes. Multiple modes may also be used depending on criticality of the SRP malfunction.
  • the system 100 establishes communication in the form of the self-generating 'Alarm-SMS' to one or more pre-defined mobile numbers as well as control room computers at designated places.
  • the Alarm-SMS enables the monitoring of an SRP from any place in the world that has a GSM network for receiving a message on mobile handsets, and/or on a computer at monitoring stations.
  • the system 100 monitors and __manages various aspects that are critical for safe and efficient operation of the SRP.
  • the input unit 116 also receives input signals from a sensor mounted, preferably on a gearbox of the SRP, in a position suitable for sensing the level of gear oil in the SRP unit.
  • This sensor continuously monitors the oil level. When the oil level falls below a predetermined level that is required for safe operation of the SRP, it is detected by the sensor and a signal is sent to the input unit 1 16 of the PLC 106, thereby causing an alarm to be raised.
  • the sensor is mounted on the body of the gear box by drilling a hole and fixing the sensor in a position such that it remains in proximity cf the gear oil.
  • the sensor senses physical properties of the oil and when level of the oil falls to a point where the sensor is no longer in proximity of the oil, the sensor cannot sense the physical properties of the oil, thereby causing an alarm;
  • the alarm may be communicated to one or more pre-defined mobile numbers as well as control room computers at designated places via the GSM modem 108. Once, the alarm is raised, operation of the SRP is stopped either manually or automatically thereby preventing damage.
  • a typical SRP operation is in the form of a rod reciprocating with a pump for an up and down motion thereof, thereby causing a pumping action that lifts oils to the surface from the sub-surface, which is usually hundreds of meters below the ground level.
  • the rod that reciprocates inside the well is termed as a polished rod and may in an embodiment be between 800 meters to 1000 meters long.
  • any further reciprocation of the polished rod may result in its getting heated due to increased friction between the rod and the lining, and causing damage to other parts of the SRP pump.
  • the polished rod may also get heated due to other adverse conditions.
  • a temperature sensor is provided to prevent damage caused by over heating of the polished rod.
  • the temperature sensor is mounted, in the vicinity of the polished rod, in a position suitable for sensing its temperature.
  • a signal is sent to the input unit 116 of the PLC 106, thereby causing an alarm to be raised.
  • the alarm may be communicated to one or more pre-defined mobile numbers as well as control room computers.
  • the exact temperature of the rod is communicated to one or more pre-defined mobile numbers as well as control room computers enabling corrective actions to be taken.
  • a transducer is provided on an oil outlet valve present at a surface pipe line.
  • the transducer acts as a flow meter, which measures the flow rate of oil flowing out of the ⁇ valve.
  • This measured flow rate is provided to the input unit 116 of the PLC 106 which causes the information to be communicated to one or more pre-defined mobile numbers as well as control room computers at designated places via the GSM modem 108.
  • the outlet valve is a motor operated valve (MOV).
  • the transducer on the outlet valve is connected in a closed feedback loop circuit with the input unit 116.
  • the transducer converts the flow rate of the oil in the surface pipe line to an electrical signal which is between 4 to 20 milli-amperes..
  • This electrical signal is a measure of the flow rate of the oil flowing out of the outlet valve, and is fed to a motor drive.
  • the motor drive is a variable frequency drive which changes the speed of a motor controlling the
  • the system 100 also provides for security surveillance of the SRP unit, to monitor unwanted intrusion in the SRP area.
  • a camera is provided at strategic locations in the vicinity of the SRP. The camera is actuated whenever there is a change in any pre-defined status in the SRP area.
  • the camera may be a standard digital camera or a web
  • camera which is designed to be actuated whenever there is a change in electrical continuity in the SRP area.
  • electrical continuity in the SRP area may be maintained using electrical wiring and may change due to the wiring being broken.
  • the electric wiring is placed in a manner such that it is well concealed.
  • different means of actuating the camera in case " of unwanted intrusion in the SRP area, may be employed.
  • the actuation of the camera causes a signal to be sent to the input unit 116 of the PLC 106, thereby causing an alarm to be raised.
  • the alarm may be communicated to one or more pre-defined mobile numbers as well as control room computers at designated places via the GSM modem 108.
  • the actuation of the camera may be designed to cause the camera to click photographs continuously for a pre-defined period of time. These photographs are stored in the PLG- 106. Consequentially, any unwanted intrusion in the SRP area is communicated to a desired location in real time, with back up photographs of the intruder available in the RTU 102 to be accessed on demand.
  • the system 100 of the present invention also enables sending of a query to an SRP well by SMS, which in turn prompts a response generated from the RTU 102 at the SRP site to generate and transmit a complete SRP status. Any unwanted interruption or malfunction of the SRP appears with the reason of the malfunction to mobile phones and monitoring PCs, thereby enabling maintenance crew to begin rectification -work immediately. This enables the malfunction response time to be shortened considerably and provides for optimal production from SRP oil wells.
  • FIG. 2 illustrates a front-end processor (FEP) 202, in accordance with an embodiment of the present invention.
  • the FEP 202 receives the data or messages generated by each RTU and communicates the same to the end receiving terminals.
  • the FEP 202 comprises a data storage and processing unit 204, which in turn is coupled to a GSM device such as a modem 206 provided with an antenna to receive the data and /or messages from a RTU.
  • the FEP 202 acquires the field data from each RTU, stores it in the data storage and processing unit 204 and then transfers the data to a predetermined control station and/or a pre-defined computer or mobile phone.
  • a light emitting diode (LED) 208 is provided at each FEP 202.
  • the LED 208 flashes when the FEP 202 is in the process of acquiring the data from a RTU. Once the entire packet of data is received from the RTU at any given instant, the LED 208 turns OFF signaling transfer of data to a predetermined control station and/or a pre-defined computer or mobile phone.
  • end receiving terminals for example computers, may be equipped with an overriding alarm system triggered by the receipt of data.
  • FIG. 3 illustrates an exemplary environment enabling the operation of the Electronic monitoring system 100, in accordance with an embodiment of the present invention.
  • a group of SRPs 302 corresponds to a GGS 304 and a group of SRPs 306 corresponds to a GGS 308.
  • Each SRP is provided with a RTU 310 to monitor the functioning of the respective SRP.
  • a FEP 312 and a FEP 314 is provided at the GGS 304 and the GGS 306 respectively.
  • the data and/or messages generated by each RTU are communicated to either the FEP 312 or the FEP 314 depending on the GGS of the respective RTU.
  • the data and/or messages generated by each RTU are also communicated to one or more of pre-defined GSM enabled mobile devices 322 in the form of a. SMS.
  • the data and/or messages generated by each RTU are also communicated to a FEP 316 provided in a main control room 318.
  • the FEPs 312 and 314 communicate the data collected from each RTU 310 to the FEP 316 provided in the main control room 318.
  • the FEP 316 transmits the received data to one or more pre-defined GSM enabled mobile devices 320 and /or personal computers (PCs) 322.
  • PCs personal computers
  • a filtration mechanism is provided to ensure that the repetitive info ⁇ nation is not transmitted to the all the pre-defined mobile devices and PCs, as well as to the GGS control rooms and to the main control room.
  • a fault like a general power lailure at a plurality of SRPs
  • multiple messages are generated, due to interruption in more than one SRPs receiving power from the same circuit.
  • the filter mechanism prevents these messages, which provide similar information but pertain to different SRPs, from reaching the mobile handsets.
  • the filtration mechanism is provided with each PLC 106 and is programmed to restrict the power failure message only to a GGS control " room FEP. Then, the identical and simultaneously sent messages are filtered to a single message to be sent to the configured mobile handsets. Therefore, the mechanism causes a single message specifying the alarm information to be transmitted to pre-defined mobile handsets and PCs, instead of transmitting multiple messages, one corresponding to each SRP.
  • the data transmitted by the FEPs may be in any predetermined form such as iext and is -displayed on a PC desktop taking precedence over any running program.
  • This display may be in the form of an alert message along with the data identifying the corresponding RTU and its fault description.
  • the display may also be depicted as a graphic representation using SRP SCADA program, such as, SCANET MIMIC page of respective wells on the PC.
  • SCANET MIMIC module provides a graphic representation of information.
  • a parallel message in the form of a SMS may also be sent, specifying the same information as that displayed on the PC desktops, to a set of pre-defined mobile numbers.
  • the functionality of EMS 100 is implemented using EMS program.
  • the EMS program provides for easy identification of alarms as well as generation of meaningful and analytical reports to scrutinize SRP performance.
  • the EMS program comprises a MIMIC Generator module, a GSM Application Module and a Report Generation module.
  • the MIMIC Generator module generates a MIMIC display corresponding to the data received from an RTU. Instead of having pure alphanumeric display of the acquired data, graphical representation of information via the MIMIC display provides a more comprehensive illustration of the data.
  • Process diagrams that represent various sections of a control room network at different levels of details can also be quickly created using the MIMIC generator module.
  • the module has all the basic graphic entities such as lines, arcs, circles, boxes, in various colors and patterns.
  • a standard library of commonly used equipment is provided to aid in development of new MIMC diagrams.
  • the EMS program is provided with a blue print of the actual network integrating various control rooms and the main control room. These locations are dynamically linked with each SRP.
  • the SRP data can be viewed in graphical format in the MIMIC diagram displayed in the control rooms.
  • a plurality of control rooms may be allocated for each group of SRPs.
  • a user can easily identify a specific alarm message, for a single SRP, from a group of SRPs. If an alarm occurs in any of the SRPs, a red blinking signal appears in a tag link of the respective control room. The monitoring crew at the control room is prompted to click on the red blinking signal. This leads to the generation of a new MIMIC diagram showing the group of SRPs corresponding to that control room with the SRP number, which is in the state of alarm, appearing as a red blinking signal.
  • Clicking on the individual red blinking SRP number signal results in a display showing a complete status and alarm information for a group of SRPs.
  • This display also provides information regarding the last update to the displayed status in terms of time and date.
  • Some of the information that may be made available in terms of reference to time are pump status, power status, overload status, single phasing preventer (SPP) status, cyclic timer status, belt status, stroke counts, and pump run hours. This information can be combined to provide important performance criteria of the SRP. For example, the pump run hours together with the strokes count give the oil production data.
  • the GSM Application module enables the communication of data and information generated at the SRP.
  • the data and information generated at each SRP is transmitted and received through GSM enabled transceivers.
  • Events and/or alarms generated at each SRP are transmitted via a GSM modem.
  • the transmission of the information may be made directly to a GSM enabled mobile handheld device or through a FEP.
  • Each SRP has a unique configuration number. When an FEP receives the information it processes it against stored pre-determined values for sounding an alarm where necessary.
  • the information from each FEP is transmitted to a central monitoring computer.
  • the FEPs are also provided to configure the SRP GSM messages. This enables a FEP to identify the SRP from which it receives a message.
  • a central monitoring PC receiving data from a FEP is configured to sound alarm on a pre-defined number of handheld GSM enabled devices.
  • the central monitoring computer is also connected to a display means for displaying the status of the SRPs using the information received by a FEP.
  • each RTU at the SRP well is allotted a unique GSM number that identifies the SRP well at the predetermined handheld GSM enabled mobile devices, the FEPs at the GGS control room, the FEPs at the main control room and the central monitoring PC.
  • the GSM Application module provides a password-protected option for changing the recipients of information from the RTUs.
  • the overall health of a field of SRP oil wells or parts thereof may be obtained by collating information received, in the form of a report, over a repetitive pre-determined period.
  • the Report Generation module generates such a report.
  • the report may cover details such as SRP numbers, date, time of selected date, number of strokes and running hours of SRP pump during the report cycle period.
  • the report may also cover information on malfunction if any, Including time and the reason of malfunction.
  • the reports may also form historical data that may be treated to serve as a tool to improve efficiency or analyze repetitive pattern of malfunction.
  • the electronic monitoring system using GSM based self generating SMS for electrical fault diagnostics and other relevant parameters of unmanned SRP well, as described in the present invention provides a number of distinct advantages.
  • the EMS of the present invention integrates with the existing electrical motor starter panel of an SRP. Therefore, it is a fully concealed device. There is pilferage/vandalism of materials at the SRP sites since they remain unmanned and are usually located near enough civilization.
  • the EMS is capable of being hidden away from eye and also of being protected by lock and key since its size is small. In addition, it does not interfere with the normal functioning of the SRP well under monitor.
  • the EMS enables a large number of remotely located SRP wells spread across a vast area to be monitored at all times without any human intervention. Thus, routine visits of manual monitoring teams just for checking whether SIlP is in operation or not can be minimized. This is a significant benefit, as the available manpower and logistic resources can now be directed to quality and technical jobs, thereby improving productivity and production of an organization employing the EMS.
  • the feature of providing instant messages regarding occurrence of a fault along with a probable reason for the sameisn mobile phones in the form SMS, facilitates mobile trouble shooting teams to quickly respond to any malfunction or shut down of an SRP. Therefore, response time to a fault and shut down period is significantly reduced.
  • the facility of auto generation of progress reports and fault history provided by the EMS helps develop data that is used to analyze, improve and minimize the causes leading to particular types of break downs.
  • Another advantage of the EMS of the present invention is that it is based on readily sourced components, thereby having assured reliability and sustainability of function. Further, the system is provided with the flexibility to adapt to further data sensing and transmission and is compatible with SCADA systems. Therefore, application and data assimilation is available for monitoring a sensed variable in operation of SRPs.

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Abstract

La présente invention concerne un système de surveillance électronique (EMS) permettant de surveiller le résultat de puits de pétrole SRP situés à distance. Ce système EMS utilise un réseau GSM pour communiquer en temps réel l'état de surveillance d'un SRP à un ou plusieurs matériels de surveillance distants. Ce système EMS comprend au moins un capteur couplé à chaque SRP de façon à détecter un mouvement et à enregistrer les courses du SRP. Ce système EMS comprend aussi un contrôleur programmable permettant de recevoir des données du capteur et un panneau démarreur de moteur du SRP. Ce contrôleur programmable convertit les données reçues en informations dans un format prédéfini et émet ces informations vers un processeur frontal (FEP) via un dispositif GSM. Le FEP émet aussi ces informations aux matériels de surveillance tels que des ordinateurs de chambre de commande, des téléphones mobiles prédéfinis et des PDA..
PCT/IN2006/000009 2005-01-12 2006-01-10 Appareil et procede de surveillance de pompes a tige d'aspiration situees a distance WO2006075337A2 (fr)

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US20120075114A1 (en) * 2009-06-15 2012-03-29 Shandong Nine-Ring Petroleum Machinery Co., Ltd. Monitoring system for sucker rod
CN102654045A (zh) * 2012-05-10 2012-09-05 中国石油天然气股份有限公司 顶部注空气重力辅助驱采油一维物理模拟实验系统
CN103883286A (zh) * 2012-12-20 2014-06-25 陈建武 圆环齿抽油机
CN104234669A (zh) * 2014-09-08 2014-12-24 刘松岭 抽油机变频不停机调冲程调冲次装置
US9041332B2 (en) 2011-08-31 2015-05-26 Long Meadow Technologies, Llc System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system
CN107632575A (zh) * 2017-10-25 2018-01-26 中国恩菲工程技术有限公司 智能操作柱
CN111221324A (zh) * 2020-01-09 2020-06-02 深圳市东深电子股份有限公司 一种水利rtu的多接口数据采集方法
CN115163043A (zh) * 2022-09-05 2022-10-11 大庆市华禹石油机械制造有限公司 一种电控装置预警保护系统

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CN107165615B (zh) * 2017-05-10 2020-04-24 东北大学 基于曲波变换和核稀疏的抽油井半监督故障诊断方法

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GB2353546A (en) * 1999-08-25 2001-02-28 Schlumberger Holdings Controlling the production - e.g. depletion rate - of a hydrocarbon well using remote sensors and a communication network
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120075114A1 (en) * 2009-06-15 2012-03-29 Shandong Nine-Ring Petroleum Machinery Co., Ltd. Monitoring system for sucker rod
US8947256B2 (en) * 2009-06-15 2015-02-03 Shandong Nine-Ring Petroleum Machinery Co., Ltd. Monitoring system for sucker rod
US9041332B2 (en) 2011-08-31 2015-05-26 Long Meadow Technologies, Llc System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system
US9279838B2 (en) 2011-08-31 2016-03-08 Long Meadow Technologies, Llc System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system
CN102654045A (zh) * 2012-05-10 2012-09-05 中国石油天然气股份有限公司 顶部注空气重力辅助驱采油一维物理模拟实验系统
CN103883286A (zh) * 2012-12-20 2014-06-25 陈建武 圆环齿抽油机
CN104234669A (zh) * 2014-09-08 2014-12-24 刘松岭 抽油机变频不停机调冲程调冲次装置
CN107632575A (zh) * 2017-10-25 2018-01-26 中国恩菲工程技术有限公司 智能操作柱
CN111221324A (zh) * 2020-01-09 2020-06-02 深圳市东深电子股份有限公司 一种水利rtu的多接口数据采集方法
CN115163043A (zh) * 2022-09-05 2022-10-11 大庆市华禹石油机械制造有限公司 一种电控装置预警保护系统

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