API standard Vertical Screw Centrifugal Multistage Electric Submersible oil Pump

API standard Vertical Screw Centrifugal Multistage Electric Submersible oil Pump

Electric submersible pump Features:
1.An electric submersible pumping system consists of three parts, which includes surface part, middle part and downhole ESP. Surface part mainly includes transformer, switchboard, junction box, wellhead and surface cable. Middle part is power cable and cable extension which connect surface and downhole equipment and provide motor with power. Downhole part is the main part of the system which includes electric submergible motor, protector, gas separator and multi-stage centrifugal pump.
2.ESP system is applicable to the production casing of 5″,5 1/2", 7″,8 5/8",9 5/8" and above.
3.Capacity:200-25160BPD (30—4000m3/d).
4.Head:

Electric submersible pump Model Selection Basic Data
1.Well Data: Casing size and weight, Tubing size, type and thread, Perforated oropen hole, Pump setting depth (measured and vertical), Deviation survey

2.Production Data: Wellhead casing pressure, Wellhead tubing pressure, Presentproduction rate, Production fluid level/Pump intake pressure, Static fluid level/Static Bottom hole pressure, Datum point, Bottom-hole temperature, Desired production rate, Gas-oil ration, Water cut.

3.Well Fluid Conditions: Specific gravity of water, Oil API or specific gravity, Specific gravity of gas, Bubble-point pressure of gas, Viscosity of oil, PVT data.

4.Power Sources: Available primary voltage, Frequency, Power source capabilities

5.Possible Problems: Sand, Deposition, Corrosion, Paraffin, Emulsion, Gas,Temperature

Model selection

Notes on electric submersible Pump Selection:
1.Larger diameter pumps and motor are less expensive and they operate at higher efficiencies.
2.Select the highest efficient pump that will fit in the casing
3.If the well’s production capacity is not accurately known, choose a pump with a steep characteristic curve.
4.If desired volume falls at a point where two pumps have approximately the same efficiency, choose the pump type which requires the greater number of stages.
5.If gas is present in the produced fluid, a gas separator may be required to achieve efficient operation.
6.In wells with viscous fluids or emulsions, some pump corrections may be necessary to ensure more efficient operation, hence, working with a service company personnel will be expedient.
7.In most cases there will be two or three pumps that meet the volume and diameter requirements. A comparison of efficiencies, expected production changes and actual pump efficiencies are used to select the optimum pump.

Other considerations are; Availability of pump in customer inventory,Delivery Equipment

High pressure 562 Series Electric submersible pump system for deep oil well

pump
Electric submersible pump is a part of downhole ESP system. It is installed between tubing and intake device such as Intake of Gas separator.
motor
Schlumberger high-efficiency electric submersible pump (ESP) motors are designed for reliable operation in the extreme environments common in oil well applications.
protector
It protects the motor from the well fluid.
It provides pressure equalization between the motor and the wellbore.
It carries the thrust load of the pump.
It compensates motor oil volume during ESP system operation.
It transfers torque from Motor to Intake devices and Pump.
intake
Intake is installed between pump and protector and serves as fluid supplier for pump.
gas separator
When reservoir fluid has high free gas content at pump intake, such key parameters of the pump as flow rate and developed pressure
are deteriorated significantly.In this case a Gas separator is usually installed before the pump to recover its efficiency and allow higher
initial gas content in fluid.

Aote Tianjin Pump Co., Ltd. was established in 2004,which is a professional manufacturer in production, sales, research and development of submersible motors and submersible pumps.

Main products: Submersible motor pumps, stainless steel submersible borehole pumps, sea water pumps, deep well submersible pumps, electric submersible oil pumps, sewage pumps, ZPQK/SXQK single suction and double suction mining submersible motor pumps, QZB/QHB axial flow pumps, mixed flow pumps,LX screw centrifugal pump and High voltage and low voltage 3 phase submersible Ac motor.

30% deposit by T/T in advance, pay 70% balance when the products are finshed.

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