Bombeo Electrosumergible (Bes). Descripción: Es un sistema de levantamiento Artificial, es muy usado en el area petrolera fase produccion. Este manual y el manual específico de direccionesGenerales, deben leerse .. del cedazo o filtro de succión es proteger los elementos internos de bombeo. últimas actualizaciones. Manual de Aplicación • Instalación y Mantenimiento .. de Sistemas en Línea de Bombeo de Alta Presión de este manual, los motores.
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Published on Feb View 61 Download 4. The pump is close-coupled to a submersi- ble electric motor that receives power through the power ESPs are currently operated in wells with bottomhole temperatures BHTs up to F. Operation at elevated ambient temperatures requires special com- ponents in the motor and power manuual capable of sus- tained operation at high ambient temperature. ESPs have efficiently lifted fluids in wells deeper than umps can be operated manal casing as small Many studies indicate that ESPs are the ft method and the most economical on a barrel basis.
System efficiency rangesdepending on fluid volume, net lift, and advantage of the ESP is that it has a nar- cable and surface controls. The ESP has the broadest producing range of any ar- tificial lift method. Variable-speed drives can extend the producing range beyond these rates. Although most operators tend to associate ESPs with high volume 12, ft. Introduction The electric submersible pump ESPsometimes called submergible, is perhaps the most versatile of the ma- jor oil-production artificial electrosumergibe methods.
This chapterprovides the reader with a broad understanding of the key factors in selection, installation, and operation of electric submersible pumps. ESP topics covered include the ESP system; applications; ESP system componentsselection data and methods; handling, installation, and operation; and troubleshooting.
ESPs are used to produce a variety of fluids and the gas, chemicals, and contaminants commonly found in these fluids. Currently ESPs are operated economically in virtually every known oil field environment. The WOR is, in general, not significant in assessing an ap- plication. Aggressive fluids those contain- ing HzS, CO?
Sand and similar abrasive contaminants can be produced with acceptable pump life by using specially modified pumps and opera- tion procedures. An ESP can be operated in a deviated or directionally drilled well, although the recommended operating position is in a ellectrosumergible section of the well.
Because the ESP can be up to ft long, operation in a bend or dogleg could seriously impact unit run-life and performance by causing hot spots where the motor rests against the casing. Electroskmergible ESP can operate in a horizontal position. In this case, run-life will be deter- mined by the protectors ability maunal isolate well fluid from the motor.
It does handle free gas well, but the impact of large volumes of gas can be destructive to the pump. Run life can be adversely affected by a poor quality electric power supply, but this is not limited to the ESP.
Applications The ESP historically has been applied in lifting water or low oil-cut wells that perform similar to water wells. However, within this seemingly narrow segment there are many types of installations and equipment configum- tions. The ESsystems major surface and downhole equipmenshown. In this installation, the available surface powetransformed to the downhole power requirementsthree single-phase transformers. Tpower cable is run in with the production electrosumergigle strand is banded to the tubing to prevent mechandamage during installation and removal.
The powcable is spliced to a motor flat cable, which is bandethe exterior of elechrosumergible pump-protector motor unit. The cetrifugal pump is located at the top of the downhole unThe pump is hung on the tubing string by the dischahead. Below manial pump is a standard intake, which pvides for fluid entry to the pump. The center componis the protector. The protector both equalizes exterand internal pressure and isolates the motor from the wfluid.
The lowest component is the motor, which drivthe centrifugal pump.
Note that the downhole unitlanded above the perforations. This is necessary so t fluid entering the well flows past the motor. This flow cools the motor, which is otherwise likely to overheat and fail. Booster and Injection Fig. In this applica- tion, a standard pump-protector motor unit is used to lift fluid from a flowline or other source and simultaneously provide injection pressure for a waterflood, pipeline, or other purpose.
In a booster application, the unit is set in a short piece of casing, usually near the surface.
Bombeo Electro Sumergible (BES)
This con- figuration can be used for water injection, power fluid, fluid transfer, water disposal, or as a tailgate booster. Injection applications usually lift fluids from an aquifer at normal depths and inject the produced water into a producing zone in the same well or a second well.
Injection systems can provide pressure greater than 3, psi. The production rate of the pump can be designed to closely match the injectivity characteristics of a reservoir during lillup. Bottom Intake and Bottom Discharge Fig.
In bot- tom intake applications, the well fluid enters the pump through a stinger landed in a permanent packer. The pump and motor sections are inverted from typical posi- tions. The well fluid is produced up the annulus instead of the conventional tubing string. This configuration is used where casing clearance limits production volume because of tubing friction loss or pump diameter in- terference.
Because the bottom intake pump can be suspended by small-diameter, high-tensile-strength tub- dde, output and efficiency are significantly improved.
The bottom discharge pump typically is used to inject water from a shallow aquifer into a deeper producing zone. Bombro eliminates surface flowlines and pumping equip- electdosumergible completely. In this configuration, the pump and motor sections are inverted from a typical position. The pump produces the fluid through a tubing stinger landed in a permanent packer in the injection zone.
Thus, the in- jection pressure is the sum of the interzonal hydrostatic head and the output pressure of the pump. Depending on electosumergible exact configura- tion, a shroud can serve two purposes: A shroud allows the pump to be set below electrpsumergible perforations or producing formation. Other examples are cavern or platform leg storage where a unit is suspended in the fluid on tubing and the shroud provides the necessary motor cooling-fluid flow.
Typical applications are mud mixing, washdown, fire protection, sump pumps, water supply, and off-loading crude oil from storage.
The major reason for the use of ESPs in these applications is its space sav- ings when compared with conventional pump products.
The motor is a two-pole, three-phase, squirrel-cage induction type. Motors run at se nominal speed of 3, revimin in Hz operation. Motors are filled with a highly refined mineral electrosumergiblee that provides dielectric strength, bearing lubrication, and elcetrosumergible con- ductivity. The standard motor thrust bearing is a fixed- pad Kingsbury type. Its purpose is to support the thrust load of the motor rotors. Other types are used in high- temperature applications above F.
Heat generated by motor operation is transferred to the well fluid as it flows past the motor housing.
Because the motor relies on the flow of well fluid for cooling, a standard ESP should never be set at or below the well perforations or producing zone unless the motor is shrouded Fig.
Motors are manufactured in four different diameters series 3. Thus, motors can be used in casing as small as 4. Sixty-Hz horsepower capabilities range from a low of 7. Motor construction may be a single section or Fig. Motors are selected on the basis of the max- imum OD that can be run easily in a given casing size. The standard motor housing material is heavy-wall, seamless, low-carbon steel tubing.
The motor-shaft material is carbon steel. The rotors are supported by sleeve bearings made of Nitmlloy and bronze. The squir- rel cage rotor is made of one or more sections depending on motor horsepower and length.
The motor stator is wound as a single unit in a fixed housing length. The ESP is a multistage centrifugal type pump Fig. The type of stage used determines the design volume rate of fluid production. The number of stages determines the total design head generated and the motor horsepower required.
The materials used in manufacturing an impeller are Ni-Resist, Ryton, and bronze. Diffusers are universally manufactured of Ni-Resist. The standard shaft material is K-Monel. Optional, high-strength shaft materials In- conel and Hastalloy elecrrosumergible used in deep-setting applica- tions where conventional shaft material horsepower limits are exceeded. Bolt-on design makes it possible to vary the capacity and total manjal of a pump by using Fig.
However, large-capacitypumps typically have integral heads and bases. The nominal OD of a pump will range from 3. Protector Electrosumwrgible protectors primary purpose is to isolate the motor oil from the well fluid while balancing bottomholepressure BHP and the motors internal pressure.
Proyecto Bes – PDF Free Download
There are two types of protector design-the positive seal Fig. The positive seal design relies on an elastic, fluid-barrier bag to allow for the thermal expansion of motor fluid in operation, and yet still isolate the well fluid from the motor oil. The labyrinth path design uses differential specific gravity of the well fluid and motor oil to prevent the well fluid from entering the motor. This is accomplished by allowing the well fluid and motor oil to communicate through tube paths connecting segregated chambers.
The protector performs four basic functions. The pro- tector 1 connects the pump to the motor by connectingboth the housing and drive shafts, 2 houses a thrust bearing to absorb pump shaft axial thrust, 3 isolatesmotor oil from well fluid while allowing wellbore-motorpressure equalization, and 4 allows thermal expansion of motor oil resulting from operating heat rise and ther- mal contraction of the motor oil after shutdown. Pump Intake Two types of intakes are used to allow fluid to enter the pump.
These are the standard intake shown in Fig. If the gas remains in solution, the pump will perform normally.
However, once the GLR exceeds a value of about 0. As the GLR increases above 0.