w&s oilfield equipment co., ltd. lesp 201811f.pdf · no sucker rod needed no maintenance cost...
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W&S OILFIELD EQUIPMENT CO., LTD.
THE LESP LINEAR ELECTRIC SUBMERSIBLE PUMPDesigned and developed by W&S
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There are approximately 5 million oil wells in the world, 600,000 wellsin China, of which about 60% are sucker rod pump (SRP) systems and20% are conventional PCP systems.
Any oil and gas well (including horizontal wells) with a maximumoutput of 400 b/d is suitable for THE SRD.
Any oil and gas well with a maximum output of 220 b/d with high watercut, low viscosity, low-sand and low-wax is suitable for THE LESP.
Each year, approximately 50,000 to 100,000 new oil wells are put intoproduction and all of which could be suitable for either THE SRD-2 orTHE LESP.
Conventional Side-drive PCP system, which will be banned in China in2019, companies such as Baker Hughes, Schlumberger, WaterfordInternational and Halliburton will be affected by this policy. However,we, the W&S Company, the only manufacturer of true direct drivesystems will benefit from the market shifting.
THE SRD THE LESP
THE W&S products can REPLACE ALL
Side-Drive PCP SRP
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USA /OILFIELD CNPC/ CHINA
THE LESP
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THE LESP at USA OILFIELD 2012
There are more than 1.7 million oil and gas wells in the USA, mostly run by private companies. Some of the wells are evenlocated next to highways or inside communities. Because the sucker-rod system takes up a lot of space and generates lots ofnoises, it affects the surroundings significantly. Also, there are a considerable number of expiring old systems needed to bereplaced. Our patented LESP has been installed and tested in California in 2010 and 2012. It takes smaller space and ourcustomer is satisfied with the results. Because of its energy-saving and landscaping features, it is subsidized by Californiagovernment.
Google map: https://www.google.com.tw/maps/@35.486559,-119.075541,3a,15y,261.41h,85.29t/data=!3m4!1e1!3m2!1sRjMm591SRQSGKz3ULuZ4sg!2e0
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THE LESP LINEAR ELECTRIC SUBMERSIBLE PUMP SYSTEM Benefits
High System Efficiency(Up to 95%)
High Power Factor(95% )
Low Operational Current(50%)
EASY stroke speed adjustment Electricity saving
(60%) Low Installation cost No Sucker Rod Needed No Maintenance Cost Environmental friendly Landscape optimization
THE FUTURE OF ARTIFICIAL LIFT TECHNOLOGY : THE LESP
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THE LESP INDEX : LESP -12Kw-480V
Technical Performance and Index of W&S LESPLESP-12Kw-480V
Dimension of Control Cabinet: 1950×950×750mm
Suitable Well Conditions:
1. Depth: under 1,500m (4,921 feet)
2. Maximum Productivity: 12 tons/90 barrels/day
3. Suitable for flat ground, mountains and offshore use.
4. Dynamic fluid surface: Submersible depth larger
than 100m (328 feet)
5. Casing Diameter: =>7”
6. Inner Casing Diameter: =>5 1/2”
7. Well Temperature: under 70℃(158℉)
8. Tubing Diameter: 2 7/8”
9. Water Cut: Above 80%
10. Viscosity: <=3000 mPa.s
11. Ambient Temperature for Control Cabinet:
-40℃~60℃ (-40~140℉)
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Dimension of Control Cabinet: 1950×950×750mm
Suitable Well Conditions:
1. Depth: under 1,500m (4,921 feet)
2. Maximum Productivity: 22 tons/160 barrels/day
3. Suitable for flat ground, mountains and offshore use.
4. Dynamic fluid surface: Submersible depth larger
than 100m (328 feet)
5. Casing Diameter: =>7”
6. Inner Casing Diameter: =>5 1/2”
7. Well Temperature: under 70℃(158℉)
8. Tubing Diameter: 2 7/8”
9. Water Cut: Above 80%
10. Viscosity: <=3000 mPa.s
11. Ambient Temperature for Control Cabinet:
-40℃~60℃ (-40~140℉)
THE LESP INDEX : LESP -16Kw-480V
Technical Performance and Index of W&S LESPLESP-16Kw-480V
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Dimension of Control Cabinet: 1950×950×750mm
Suitable Well Conditions:
1. Depth: under 1,500m (4,921 feet)
2. Maximum Productivity: 31 tons/220 barrels/day
3. Suitable for flat ground, mountains and offshore use.
4. Dynamic fluid surface: Submersible depth larger
than 100m (328 feet)
5. Casing Diameter: =>7”
6. Inner Casing Diameter: =>5 1/2”
7. Well Temperature: under 70℃(158℉)
8. Tubing Diameter: 2 7/8”
9. Water Cut: Above 80%
10. Viscosity: <=3000 mPa.s
11. Ambient Temperature for Control Cabinet:
-40℃~60℃ (-40~140℉)
THE LESP INDEX : LESP -20Kw-480V
Technical Performance and Index of W&S LESPLESP-20Kw-480V
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W&S THE LESP Conventional SRP PCP
Spacing Requirement 5 M2
50 M2
5 M2
Efficiency conversion Rate 90% ~ 95% 45% ~ 60% 50% ~ 75%
Power Factor at Full Throttle 95% 79% 75%
Rotor/Stator StructureWired stator with
permanent magnetism rotor (mover)Conventional
squirrel-cage motorConventional
squirrel-cage motor
Starting Current 50% 120% 120%
Starting Thrust 100% 70% 70%
Frequent Start/Stop Good Poor Poor
Starting with Load Good Poor Poor
Overload Capacity High Low Low
Anti-reverse Not applicable Not applicable At risk
Starting Dead Center No Yes No
Starting Impact No Huge Huge
Load Change Stable Unstable Stable
Mechanical Wear No Heavy on overall parts Brake parts, belts, gears
Operational Noise No High Low
Installation Time Less than 1 day More than 10 days Less than 2 days
Maintenance NoComplex: belt change, weight distribution
adjustment, stroke timing adjustmentBelt change, pulley ratioadjustment and change
Energy Saving Comparing to Conventional SRP
Up to 60% 0% Up to 40%
Pump Stuck Not applicable Not applicableMight break belts and burn out motors due to
the requirement of constant high speed to generate high torque
Weight (Ton) 2 20 1
COMPARING TO OTHER EXTRACTION SYSTEMS
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THE“LESP ”CAN REPLACE ALL OF THOSE TRADITIONAL SYSTEMS
THE LESP can replace all
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May 2011, World Oil Magazine Report for THE LESP system
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COMPANY NEWS
2017 THE SRD installed and performed well in Xinjiang Oilfield (CNPC China)
2013 W&S OILFIELD EQUIPMENT Co,. Ltd. (Taiwan Factory)
2012 THE SRD installed and performed in Daqing Oilfield (CNPC China)
2011 World Oil Journal published an in-depth article on LESP
2011 THE ESPCP installed and performed in Hancheng coal bed (CNPC China)
2010 THE LESP installed and performed well in the E&B Oilfield (California, USA)
2005 THE LESP installed and performed well in Daqing Oilfield (CNPC China)
1999 THE CSTEK Taiwan focused on the R&D of highly efficient artificial oil lift
WE PROVIDE THE BEST EQUIPMENT AND HIGH
VALUE SERVICES.
CONTACT US NOW AND START SAVING
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