BORETS COMPANY

DOWNHOLE TELEMETRY SYSTEMS

Borets SPT and ViewPoint series downhole telemetry systems are designed to monitor electric submersible pumps (ESPs), progressive cavity pumps (PCPs), beam pumps, hydraulic jet pumps and gas-lift systems. Cap-tured information allows not only for extending equipment performance, but also for optimizing production and maximizing ultimate reservoir recovery. Featuring state-of-the-art components, the downhole telemetry systems are manufactured to stringent standards and have been qualified for reliable performance in the harsh environ-ments confronted by today’s O&G industry.

Borets sensors are subjected to rigorous testing under cyclic temperature and pressure conditions, combined with further environmental, shock, and vibration testing. These extensive testing and calibration standards ensure that each and every system sent to a well site can be run with confidence.

The downhole telemetry system comprises a downhole sensor and a surface telemetry unit. The downhole sensor is mounted on a submersible motor and monitors the following parameters:

• Pump Intake Pressure,• Discharge Pressure (Upon Customer Request),• Winding Temperature at the Motor Bottom,• Winding Temperature at the Top of Motor Lower Tandem Section,• Pump Intake Temperature,• Pump Discharge Temperature,• Motor Vibration,• Current Leakage in the Following Circuit: 3-phase Oil Transformer for Submersible Pumps – High-Voltage

Cable – Submersible Motor – Downhole Sensor

The surface interface unit receives information from the downhole sensor and transmits it to a Switchboard or VFD controller. The controller is designed to display, store and transmit the received data to SCADA, to maintain the specified operational conditions and provide protection for the downhole system.

TechnicalSpecificationsParameter Specification

Power Voltage, V 85 to 400 at (50-60) Hz

Required Power, W Max. 60

Interface RS232 and RS485

Current Leakage Control, kOhm 10 to 999

Communication protocol Modbus

BORETS COMPANY

5, Moldavskaya st., Moscow, 121467, RussiaTel./Fax: + 7 495 660 - 21 - 90 e-mail: office@borets.ru

SPTSensors

Model DesignNumber MaxPressure,MPa DownholeSensorConfiguration

SPT 2-V254060

V – includes a vibration transducerK – corrosion-resistantT – winding temperature control at the top of motor lower tandem sectionR – pump discharge pressure controlM – intake temperature control up to +155°СNT – intake temperature control up to +175°СN – pump discharge temperature controlD – intake pressure control, if no index – motor oil pressure control95 – housing OD is 95 mm, if no index – OD is 103 mm0,1 – pressure control accuracy 0.1%, if no index – 0.25%

TechnicalSpecificationsofSPTSensorsMainTransmittedData UnitofMeasure Specification Resolution Index

Max Temperature

Pump Intake

°С

+150

0.01

-+155 M+175 NT

Motor Winding Bottom +327 -Top +327 T

Pump Discharge +327 N

Max Pressure MPa25

0.000125

40 -60 60

Vibration g 6 0.001 V

Example:SPT-2-V-0,1-M-T-K – 103 mm OD downhole sensor includes a pressure gauge and allows for the control of motor oil pressure up to 40 MPa with an accuracy of ± 0.1% and pressure resolution of 0.0001 MPa; monitoring of oil fluid temperature up to 155°C, oil temperature at the motor bottom and winding temperature at the top of motor lower tandem section; advanced corrosion resistance provided.

ViewPointSensors

Configuration ESPSensorType Temperature,°С

ViewPoint ESP-HT 5

+1656i-Wire

ViewPoint ESP-LT 3 +1255

The ViewPoint ESP –HT i-Wire sensor is attached to the base of the motor, and the operating data is com-municated to the surface via a dedicated “i-Wire” attached to the production tubing. This sensor is available in ei-ther a Series 5 or Series 6 configuration.

TechnicalSpecificationsofViewPointSensorsParameter Range Resolution

Pump Intake Pressure, psi (bar) 0-5800(0-400)

0.1 psi

Pump Intake Temperature, °C (°F)-20 up to +165

(32-356)0.01°C

Motor Winding Temperature, °C (°F)-20 up to +300

(32-572)0.01°C

Vibration (X & Y), g 0-10 0.01 gCurrent Leakage, mA 0-20 0.01 mA

Pump Discharge Pressure, psi 0-5800 0.1 psi