PROGRESSING CAVITY PUMP SYSTEMS - National Oilwell Varco

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PROGRESSING CAVITY PUMP SYSTEMS Hydraulic Driveheads HTD NOV Monoflo’s HTD hydraulic drivehead utilizes a bent axis motor that is coupled to a hollow shaft bearing box by a belt and pulley system, which transfers torque to the polished rod. Backspin is controlled through the hydraulic system. The motors are available in a variety of displacements to accommodate a wide variety of speeds and torques. Features and Benefits of the HTD Hydraulic Drivehead • Motor is available in various displacements • Standard synchronous belt and sheave system • Fully enclosed hinged belt guard CG-33 Each model of the NOV Monoflo CG-33 hydraulic drivehead is a beltless top drive using gears to transfer torque to the polished rod. The precision ground gears reduce noise levels by up to five times in comparison to conventional belt drives, making the CG-33 drivehead an ideal solution for use in populated areas. Each CG-33 drive utilizes a radial piston motor designed to reduce internal friction and run efficiently. These driveheads are fitted with a hydraulically activated stuffing box that can withstand any progressing cavity pumping application. Features and Benefits of the CG-33 Hydraulic Drivehead • Enclosed gear housing eliminates need for belts, thus reducing field maintenance • Case hardened and precision ground gears drastically reduce noise levels. • Gear drive utilizes a radial piston motor connected to the input gear, and is available in various displacements • Pressurized stuffing box prevents fluid from entering the seal chamber extending the life of the seals • Built in polished rod vise allows stuffing box seal change without removal of drivehead or flush-by rig Technical Specifications Model HTD CG-33 Max. System Pressure 3600 psi (245 kPa) 3500 psi (24,132 kPa) Max. System Temperature¹ 175 °F/ 80 °C 176 °F/80 °C Polish Rod Size 1¼" (32 mm) 1¼" (32 mm) Wellhead Connection 2d” EUE Pin or 38-3000 psi-R31 Flange Thrust Bearing² Ca90-25,000 lbs / ISO-96,300 lbs Backspin Control Check valve on pressure side of the motor. Torque Control Adjustable pressure compensator on pump. 38”-3000 psi-R31 Flange Ca90-33,500 lbs / ISO-129,000 lbs Check valve on pressure side of the motor. Adjustable pressure compensator on pump. Model HTD CG-33 Variable Speed Control Adjustment knob on the pump. Adjustment knob on the pump. Height Integral 31" (787 mm) 31" (787 mm) Height Retrofit 47" (1194 mm) N/A Width 29" (737 mm) 24" (610 mm) Weight Integral 400 lbs (181 kg) 240 lbs (109 kg) Weight Retrofit 450 lbs (204 kg) N/A HTD Hydraulic Drivehead CG-33 Hydraulic Drivehead Bearing Box Grease Chevron Delo Grease EP NLGi2 1 tube (Chevron Ulti-Plex Synthetic Grease) ¹ Maximum operating temperature may be limited by hydraulic oil. ² Ca90 load rating is for 90 million revolutions at 500 rpm. Reducing load by 50% increases life 10 times. Reducing speed by 50% doubles hours of life.
Electric Driveheads NOV Monoflo provides a complete line of Electric Driveheads for all your production needs. Features and Benefits • Robust frame • Detachable stuffing box • Operator-friendly guards and motor adjustments • Easy-to-adjust door for simple belt tightening • Accessible fill/drain spouts for easy oil changes • Bearing box is designed with a three-bearing system (Models C-50, C-60, C-80, and C-33M) • Hollow shaft bearing box (Model N-25) • Hydrodynamic brake (Models C-50, C-60, C-80, and C-33M) • Hydraulically actuated caliper disc braking system (Model N-25) • Brake reservoir for heat dissipation (Models C-50, C-60, C-80, and C-33M • Service and technical support Technical Specifications Model C-50 C-60 C-80 C-33M N-25 Drive Type Direct Direct Direct Direct Direct Shaft Type Hollow Hollow Hollow Hollow Hollow Drive Style Bearing Box Bearing Box Bearing Box Bearing Bearing Box Input Style Vertical Vertical Vertical Vertical Vertical Drive Ratio 1:1 1:1 1:1 1:1 1:1 Backspin Control Ratings Hydrodynamic Hydrodynamic Hydrodynamic Hydrodynamic Caliper Disc Max. Output Torque 2000 ft-lbs (2712 Nm) 2500 ft-lbs (3390 Nm) 3500 ft-lbs (4745 Nm) 1575 ft-lbs (2135 Nm) 600 ft-lbs (813 Nm) Thrust Bearing 195,000 ISO lbf 227,000 ISO lbf 310,000 ISO lbf 45,100 ISO lbf 96,300 ISO lbf Thrust Bearing¹ 50,500 Ca90 lbf 59,000 Ca90 lbf 80,400 Ca90 lbf 33,000 Ca90 lbf 25,000 Ca90 lbf Maximum Speed 600 rpm 600 rpm 600 rpm 600 rpm 500 rpm Horsepower Rating² 20 - 100 80 - 150 120 - 300 10 - 60 10 - 20 Frame Type Single Motor Dual Motor Dual Motor Single Motor Single Polish Rod Size 1¼” or 1½” (32mm or 38 mm) 1½” (38 mm) 1¼” or 2” (38 mm or 51mm) 1¼” (32 mm) 1¼” (32 mm) Max. Operating Temp. 212°F / 100°C 212°F / 100°C 212°F / 100°C 428°F / 220°C 180°F / 80°C Dimensions Height with Retro. Stuffing Box 50” (1270mm) 55” (1397mm) 64” (1626mm) 44” (1118mm) 34” (864mm) Width 35” (889mm) 41” (1041mm) 42” (1067mm) 35” (889mm) 30” (762mm) Input Shaft Size 3¼” (83 mm) 3¼” (83 mm) 4¼” (108mm) 3¼” (83 mm) 2½” (64 mm) Weight 1350 lbs (612kg) 1700 lbs (771kg) 2100 lbs (953kg) 1350 lbs (612kg) 600 lbs (272kg) ¹ Ca90 load rating is for 90 million revolutions. Reducing load one half increases life 10 times. Reducing rpm by one half doubles hours of life. ² Maximum HP rating based on frame size only. Care must be taken in selecting motor and sheave combinations to ensure input rod torque is not exceeded. N-25 Electric Drivehead C-33M Electric Drivehead C-50 Electric Drivehead C-60 Electric Drivehead C-80 Electric Drivehead www.nov.com/ArtificialLift MonofloALS@nov.com
Page 1 and 2: PROGRESSING CAVITY PUMP SYSTEMS
Page 3 and 4: Progressing Cavity Pump Systems NOV
Page 5 and 6: Rotors, Stators and Elastomers Perf
Page 7: NO-GO Tag Progressing Cavity Pumps
Page 11 and 12: VFD Controller The NOV Monoflo Prog

PROGRESSING CAVITY PUMP SYSTEMS - National Oilwell Varco

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