Surface Drive of PCP

‌RockySea Petro: A Pioneer in Surface Drive of PCP Manufacturing in China

The surface drive, also called top drive, is a specific facility to suspend and rotate the sucker rod, which in turn drives the PC pump. Then fluid can be brought to the surface by the continuous movement of rotor within stator. As a result, top drive is an important component of PCP.

Description

Surface Drive and PC pump (Progressive Cavity Pump) is a new type of artificial lift system, which finds more and more applications in the oil fields. Surface drive suspends and rotates rod string and power is then transmitted downhole, which in turn drives the PC pump.

PC pump consists of two parts: rotor and stator. The high strength, chrome-plated rotor is the only moving part of the PC pump. The stator is a kind of tube with elastic synthetic rubber molded inside. A variety of elastomer is available for different applications. When rotor rotates in the stator, a series of sealed cavities are formed and these cavities move axially from the intake end to the displacement side. When one cavity disappears at the displacement side, a new cavity will form at the intake side. Trough continuous formation, motion and disappear of these cavities, fluid is then brought to the surface. Owing to their unique features, the surface drive and PC pump find wide applications in the oil fields, and they are strongly recommended for high viscous, sandy, gassy and water bearing oil.

PCP is a mature industrial technology. It has been proven that it can be widely applied in many different types of industries. This pump belongs to the positive displacement series and has been in use since the 1950s. 

Principle

Progressing cavity pump of RockySea is a type of positive displacement pump and is also known as a progressive cavity pump, progg cavity pump, eccentric screw pump or cavity pump. It transfers fluid by means of the progress, through the pump, of a sequence of small, fixed shape, discrete cavities, as its rotor is turned. This leads to the volumetric flow rate being proportional to the rotation rate (bidirectionally) and to low levels of shearing being applied to the pumped fluid.

These pumps have application in fluid metering and pumping of viscous or shear-sensitive materials. The cavities taper down toward their ends and overlap. As one cavity diminishes another increases, the net flow amount has minimal variation as the total displacement is equal. This design results in a flow with little to no pulse.

Data sheet

Contact us

Any question about PCP Surface Drive ( Surface Drive price,Surface Drive for sale) ,please email service@rspetro.com , you will get reply within 12 hours!