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Weatherford Mini G

The document provides information on Weatherford's Mini G Surface Drives for progressing cavity pumping systems. It describes key features of the Mini G and Mini G-I models including a patented centrifugal wet braking system requiring minimal maintenance. Specifications are given for maximum torque, speed, motor size, temperature rating, and dimensions. Options include a rotating stuffing box, polished rod support clamp, and speed indicator. Contact information is provided for Weatherford customer service worldwide.

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Pablo Magnoni
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368 views2 pages

Weatherford Mini G

The document provides information on Weatherford's Mini G Surface Drives for progressing cavity pumping systems. It describes key features of the Mini G and Mini G-I models including a patented centrifugal wet braking system requiring minimal maintenance. Specifications are given for maximum torque, speed, motor size, temperature rating, and dimensions. Options include a rotating stuffing box, polished rod support clamp, and speed indicator. Contact information is provided for Weatherford customer service worldwide.

Uploaded by

Pablo Magnoni
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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PROGRESSING CAVITY PUMPING SYSTEMS

Mini G Surface Drives

Key Features
Patented Centrifugal Wet Braking System
requiring minimal maintenance
- Braking resistance does not occur until the
polished rod speed reaches ~150 RPM or greater
- Centrifugal force created during backspin engages
large brake shoes against a stationary housing
- Once the polished rod speed slows to ~150 RPM
or less, the brake shoes retract for a quick,
controlled & complete fluid dump
Mini G-I
- Braking system is immersed in synthetic
oil to control fluctuating temperatures
& to ensure a long service life
Proven, compact & robust design
Hinged belt guard with balanced lifting points
Low maintenance

Mini G-I Direct Drive


PROGRESSING CAVITY PUMPING SURFACE DRIVES
Another Production Enhancement Solution from Weatherford

Drive Name/ Model Mini G Mini G-I


Drive Type Direct
Drive Ratio 1:1
Drive Style Bearing Box
Input Shaft Vertical Hollow Shaft

Maximum Input Polished Rod Torque 2000 ft-lbs


Maximum Polished Rod Speed 600 rpm
Thrust Bearing - ISO Rating 129,000 lbs
Thrust Bearing - Ca90 Rating 33,500 lbs
Maximum Motor Size, Single Motor 60 hp 60 hp
Polished Rod Size 1 1/4" 1 1/4"

Input Shaft Size 2 3/4"


Backspin Control Centrifugal Braking System
API Wellhead Connection 2 7/8" Pin or 3 1/8" 3000# psi Flange
Maximum Suggested Temperature Housing • 140°C

Electric or Electric or
Prime Mover
Hydraulic Hydraulic
Options
Driven Sheave Maximum Diameter 30"
Drive Sheave Maximum Diameter 11.5"
Drive Sheave Minimum Diameter 4.4"
V-Belts or synchronous
Drive Belt Type
Belts/Sprockets
- Retrofit - Integral Maximum Number of Belts 6 6
Rotating Stuffing Box Polished Rod Support Clamp Minimum Center Distance (in)2 12 1/2" + D 12 1/2" + D

Height *55 7/8" 39 1/2"


Weight 1 *1180 lbs 1000 lbs
1 Excluding electric motor
2 D=Distance from the base of the selected motor to it’s centerline
* Mini G with retrofit Rotating Stuffing Box
Polished Rod Guards Polished Rod Speed Indicator
CSA Approved-Class I, Div II

WESTERN HEMISPHERE EASTERN HEMISPHERE


Canada Europe
Phone: (403) 269-7788 Phone: (44) 1224 331 331
Latin America CIS & Middle East
North - El Tigre, Venezuela Phone: (43) 2630-339771
Worldwide Customer Service Phone: 58 283 231 0555
515 Post Oak Blvd. Houston, Texas 77027 South - Buenos Aires, Argentina
Phone: (713) 693-4800 als@weatherford.com Phone: 54 (11) 5077 0077

Weatherford products and services are subject to Weatherford's standard terms and conditions. For more information concerning the full line of Weatherford products and services, please contact your authorized
Weatherford representative. Unless noted otherwise, trademarks and service names noted herein are the property of Weatherford.
© Copyright 2004 Weatherford • All rights reserved • 698.00 • 0504/1000 • Printed in Canada

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