BORETS COMPANY

Progressive Cavity PumPs

In recent years, complicating factors, such as solids content, scaling, high GOR, high viscous flu-

ids, low production rates, etc., have extended impact on the overall performance of artificial lift equip-

ment. ESP application in such operating conditions is limited.

The most efficient artificial lift method that copes with these complicating factors is progressive

cavity pumping, since it brings a viable solution to oil recovery issues for 70% of difficult wells.

operating ConditionsParameters specifications

Running depth, m up to 2400

Flow rate, m3/day 3 to 100

Water cut at intake, %, not more than 99

Fluid density, kg/m3, not more than 1400

pH value of formation water 6.0 to 8.5

Maximal fluid viscosity, m2/sec up to 1*10-3

Micro hardness of solids according to Mohs scale, not more than 5

Gas content at pump intake,% not more than 50

H2S content, %, not more than 6

Fluid temperature, C, not more than 130

The following design types of Submersible Progressive Cavity Pumps are available:

Single Electric Submersible Progressive Cavity Pump EOVNB series,

Twin-opposed Electric Submersible Progressive Cavity Pump EVNB series,

Twin-opposed Electric Submersible Progressive Cavity Pump with fixed direction of residual

thrust load EVNFB series.

Operating components of ESPCP are a stator filled with elastomer and a steel rod. Elastomer ma-

terial and clearance between the rod and stator are selected based on specific operating conditions.

BORETS COMPANY

5, Moldavskaya st., Moscow, 121467, RussiaTel./Fax: + 7 495 660 - 21 - 90 e-mail: office@borets.ru

esPCP operating with Permanent magnet motor (Pmm)

This system is equipped with a motor seal, specially designed VFD with backspin limiter, transformer and motor lead extension with a pothead.

PMM horsepower and design, as well as motor seal type are specified when ordering to fit effectively operat-ing conditions.

single esPCP with Pmm Technical Specifications

Pump sizetechnical Parameters at 500 rpm Flow rate range at 350 to 750 rpm*

Flow rate, m3/day Head, m Low range value, m3/day upper range value, m3/dayEOVNB5 3 - 20 1000 - 2500 1 45

EOVNB5A 8 - 45 1000 - 2500 1 120EOVNB6 85 1000 - 1200 43 210

* Gas content at pump intake 0%

twin-opposed esPCP with PmmTechnical Specifications

Pump sizetechnical Parameters at 500 rpm Flow rate range at 350 to 750 rpm

Flow rate, m3/day Head, m Low range value, m3/day upper range value, m3/dayEVNB5 8 - 32 1000 - 1500 4 70

EVNFB5 8 - 32 1000 - 1500 4 70

F means that pumps are equipped with motor seal 1PB92A, permanent magnet motor and clutch coupling placed between the motor seal and the motor.

esPCP operating with 4-pole induction motor

Such system is equipped with a motor seal, serial VFD transformer and motor lead extension with a pothead.Induction motor horsepower and design, as well as motor seal type are specified when ordering to fit effec-

tively operating conditions.single esPCP

with 4-Poleinduction motor

twin-opposed esPCP with 4-Pole

induction motorTechnical Specifications Technical Specifications

Pump size

technicalParameters at 1380 rpm

Pumpsize

technicalParameters at 1380 rpm

F means that pumps are equipped with mo-tor seal 1PB92A, 4-pole induction motor and clutch coupling placed between the motor seal and the motor.

Flow rate,

m3/day

Head,m

Flow rate,

m3/day

Head,m

EOVNB5 12 - 50 1000 - 2000EVNB5 25 - 100 1000 - 1500

EVNFB5 25 - 100 1000 - 1500

electric submersible Progressive Cavity Pump systems (esPCPs)

Single PCP can be completed with flush valves KPNB73.