the srd (true direct drive system) direct drive system eng201811f.pdf · the srd even power failure...

Patent # M468841

THE SRD (TRUE DIRECT DRIVE SYSTEM)VS

TRADITIONAL LIFTING SYSTEMS

1

W&S OILFIELD EQUIPMENT CO., LTD.

http://www.wsoilfield.com

The Future of Artificial Lift Technology : THE W&S SRD

• Patented Magnetic Powder brake

• Energy Saving: over 60%* more efficient, reduces the cost of production by $3* USD per barrelNote: *figures calculated based on actual operation in previous installations comparing with conventional PCP system, actual figure may vary depending on well conditions.

• LOW Maintenance Cost . LOW Down Time Cost

• 2-YEAR WARRANTY

CNPC /CHINA

The SRD Main Unit:Model No:SRD315-22-480 (380~480)

Appearance Size: 900x810x1810mmWeight:Net weight: 1,557 kgsGross weight: 1,637 Kg

Control Cabinet:Model No:SRD315-22-480-CAppearance Size: 960x800x1980mmWeight: Net weight: 233 kgsGross weight: 303 Kgs

2http://www.wsoilfield.com

THE SRDfrom W&S OILFIELD EQUIPMENT CO., Ltd.W&S Chief Engineer Peter Liang onsite

KUDU PCPTRADITIONAL SIDE DRIVE SYSTEM

Patented Integrated Magnetic powder braking

system

For constant down hole pump stuck issues in Oman due to high sand, high wax and high viscosity, our patented Magnetic Powder Braking system can firmly stop THE SRD even power failure occurs, and THE SRD’s True Direct Drive design can prevent damages to wellhead equipment and danger to workers caused by backspin.China is planning to ban all side-drive PCP systems in 2019, because a lot of workers lives were taken by side-drive PCP systems. Hydraulic braking

system

Case in Jimsar Oilfield (CNPC) , Xinjiang, China


Comparison of W&S THE SRD with side-drive PCP after replacement

THE SRDTRUE DIRECT DRIVE SYSTEM

Specification: 380V / 1,050Nm (@200rpm)1. Power factor: 99%2. Avg. operating speed: 70 rpm/min3. Avg. current: 8 ~ 18 Amps4. Avg. power consumption: around 5.2 Kw ~

11.7 Kw5. Avg. power saving vs PCP:

34.2% ~ 64.9%6. Daily KWh saving :

231.5Kwh ~ 146.4Kwh7. Annual KWh saving :

84,493Kwh ~ 53,446Kwh

KUDU TRADITIONAL SIDE DRIVE SYSTEM

Specification:Motor: Siemens 380V/22KW Max speed:728rpmDrive head : KUDU VH60 with reducer(1:6)

1,695Nm/45Kw/Max.500rpm1. Power factor(Motor): 90.3%2. Avg. operating speed: 70 rpm/min3. Avg. current: 25 ~ 30 Amps4. Avg. Power consumption :

around 14.8 Kw ~ 17.9 Kw

1. Oilwell depth: 1,400 Meter2. Water cut: 8%3. Avg. productivity: 5 ~ 10 Ton/day (30 ~ 70 b/d)4. Avg. revolution for oil lifting equipment:70 rpm (idea for this oilwell condition due to high sandy

rate, it is easy to bring out the sand to cause equipment in surface and downhole if speed is over 70rpm.


5

Maintance and Energy Cost Comparison

Fact: THE SRD can save more than 50% over PCP, and more than 60% over SRP

Annual Cost Comparison

Production SystemTHE SRD ( TRUE DIRECT DRIVE

SYSEM ) 22KW

PCP ( Traditional Side Drive System )

22KWSRP ( Sucker Rod Pump ) 22KW

Price MSRP from USD 58,000 MSRP from USD 45,000 MSRP from USD 60,000Warranty 2-year warranty 1-year warranty 1-year warrantyMaintance Cost USD 200/year from the 3rd year USD 2,000/year from the 1st year USD 14,400/year from the 1st year

Downtime Cost8-hour, 17-ton production or USD 10,000

loss based on 50-ton/day well

16-hour, 34-ton production or USD 20,000


24-hour, 50-ton production or USD 30,000


Power Consumption 1Average 203 Kw/day, 203 Kw x USD

0.11/Kw x 365-day = USD 8,151

Average 392 Kw/day, 392 Kw x USD

0.11/Kw x 365-day = USD 15,739

Average 528 Kw/day, 528 Kw x USD

0.11/Kw x 365-day = USD 21,199

Annual Cost USD 18,151 USD 37,739 USD 65,599

W&S savingWe save more than 50% comparing with PCP,and more than 60% with SRP.

USD 19,588/year USD 47,448/year

Note #1: The SRD and PCP running on the same well, electricity cost based on utility cost in China and it may vary in different region and time period.


THE SRD Traditional Side-Drive PCP system

AC Induction

Motor

Drive head

BOP

6

Complex Assembly Design

Pulley and Gear Reducer

More Simple, Efficient Design


W&S SRD compared to Mantl MB1200


THE SRD MANTL

Innovative Technology Traditional Side-drive (ACIM) PCP system

DRIECT DRIVE SYSTEM INDRIECT DRIVE SYSTEM (Side-Drive)

Four in ONE Co-axial design Accessories through Pulley and Gear reducer

Saving power more than 20%

Asynchronous Motor connected with a belt, gear

reducer, gear and other parts to adjust PC Pump

operating speed. Increasing power consumption at

least 5 to 20% due to such mechanical conversion

Low starting current , high torque in low speed,

lower power motor (cost saving)

High starting current, low torque in low speed, higher

power motor is needed to provide more torque

Heavy oil: SRD starts at low speed with high torqueHeavy oil: PCP starts at full speed then slow

down,increasing power consumption, increasing costs

More cost for maintenance –

The danger of accessories (pulley and gear reducer)

World's only 2-year warranty One year warrantyWith patents, Patent No.:

Taiwan: M 485981;

US: US 9,163,679 B1;

China: ZL 2014 2 0329065.6

Only Oil & Gas Drive Head built-in Magnetic Powder Brake System in the

world.

Low maintenance cost

Not patent

W&S’s THE SRD

8

Same Structure In Downhole: PCP

TRADITIONAL SIDE DRIVE SYSTEM


Artificial Lift System (Electrical Motor) Comparison

Oil & Gas Production System's Prime Mover - Motor ComparisonProduction System

Item Conventional SRP Traditiona PCP W&S SRD/PCPSpacing Requirement 50 M2 5 M2 5 M2

Efficiency conversion Rate 45% ~ 60% 50% ~ 75% 90% ~ 95%Power Factor at Full Throttle 79% 75% 99%

Rotor/Stator Structure Conventional squirrel-cage motor Conventional squirrel-cage motorRotor rotating without saturated

steel/coilStarting Current 120% 120% 30%Starting Thrust 70% 70% 200%Frequent Start/Stop Poor Poor GoodStarting with Load Poor Poor GoodOverload Capacity Low Low HighAnti-reverse Not applicable At risks ReliableStarting Dead Center Yes No NoStarting Impact Huge Huge NoLoad Change Unstable Stable StableMechanical Wear Heavy on overall parts Brake parts, belts, gears NoTemperature Effects High High No

Operational Noise High Low Low

Installation Time More than 10 days Less than 2 days Less than 6 hours

MaintenanceComplex: belt change, weight distribution

adjustment, stroke timing adjustmentBelt change, pulley ratioadjustment and change

Easy with seal pad adjustment

High Viscosity, Paraffin Wax and Sand Well

No Yes Yes

Energy Saving Comparing to Conventional SRP

0% Up to 40% Up to 60%

Pump Stuck Not applicableMight break belts and burn out motors due to

the requirement of constant high speed to generate high torque

Easy overcome due tohigh thrust/torque at low speed

Brownout Impact DependingMechanical cracks/failure due tounstable anti-reverse mechanism

None use smart control cabinet andmagnetic power braking system


• There are approximately 5 million oil wells in the world, 600,000wells in China, of which about 60% are sucker rod pump (SRP)systems and 20% 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 highwater cut, low viscosity, low-sand and low-wax is suitable for THELESP.

• 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 Chinain 2019, 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

10

2017 THE SRD installed and performed well in Xinjiang Oilfield (China)

2013 W&S OILFIELD EQUIPMENT Co,. Ltd. (Taiwan Factory)

2012 THE SRD installed and performed in Daqing Oilfield (China)

2011 World Oil Journal published an in-depth article on LESP

2011 THE ESPCP installed and performed in Hancheng coal bed

2010 THE LESP installed and performed well in the E&B Oilfield (California, USA)

2005 THE LESP installed and performed well in Daqing Oilfield (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


WELL TEST REPORT BY E&B NATURAL Res. MGMT CORP(USA) 2011 & 2012


Others Traditional Side-Drive PCP system


the srd (true direct drive system) direct drive system eng201811f.pdf · the srd even power failure...

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