DeRun Energy drilling motor is a
positive displacement motor. High pressure drilling fluid flows into the
drilling motors, thereby enabling the hydraulic energy to be converted into
mechanical energy, at the same time, the rotor drives the shaft and bit to
rotate to achieve the purpose of drilling.
DeRun Energy produces LZ73, LZ89, LZ95,
LZ102, LZ120, LZ127, LZ146, LZ165, LZ172, LZ185, LZ197, LZ203, LZ216, LZ244,
LZ286 and other types of drilling motors. They are for drilling diameter of
88.9-660mm.DeRun Energy also design and develop drilling motors with special
sizes, different structural features and operating characteristics in
accordance with the user's requirements, thus forming different varieties. At
present, in addition to ordinary straight drilling motors, DeRun Energy can
also provide the following types of drilling motors:
Three types of top
1.Bent drilling motors:
The bent angle on the universal shaft can meet different kickoff requirement,
there are single-bent and double-bent available.
angle adjustable drilling motors: The bent angle of the drilling
motors can be adjusted on well surface which enhance the extension of kicking
3.Extension drilling motors: On
the basis of the ordinary drilling motor, improve motor torque to make the bit
drilling quickly by increasing motor stage.
drilling motors: To meet the needs of high flow rate
solids carrying in drilling, hollow rotors with carbide nozzles of different
sizes are adopted, which can increase the input flow rate and the horsepower of
motors with high kick-off rate: Unique structural design,
shorter body, bent point closer to the drill bit, and kick-off rate of up to ＞1°/m.
saltwater mud-resistant drilling motors: To
maintain long time operation of drilling motors in saturated saltwater mud,
special rotor coating is adopted to provide better corrosion and wear
drilling motors: In order to
improve the high temperature resistance of the stator rubber of the drilling
motors, to meet the drilling requirements in high geothermal gradient region
and deep and ultra-deep well drilling requirements, high-temperature resistant
rubber is adopted to increase the temperature resistance of motor above 150 ℃.
driving shaft drilling motors: The
ordinary mud lubricated driving shaft is replaced with oil lubricated seal
driving shaft, which improves the working conditions of the thrust and radial
bearings, thus extending the service life of the drilling motors.
& Advantages of Drilling Motors
1. Adjustable Bend Housing
In directional wells, horizontal wells,
highly-deviated wells and other special processes, adjustable bend housing
drilling motor adopts new universal shaft design to realize the adjustment of
19 different angles from 0 to 4° as well as overcome the shortcomings of
erodible exposed surface and short service life of the petal universal shaft.
2. High-Abrasion Housing
By using precision machining technology
and plasma surfacing technology to highly improve motor abrasion resistance
ability and stabilize motor kick-off rates.
3. Even Wall Drilling Motor
By changing the shape of the stator case
in a rational way, even wall drilling motor can help achieve thin and uniform
stator rubber layer to overcome the technical deficiencies in the stator of
conventional drilling motors. This type of drilling motor is characterized by
high thermal efficiency, sound thermal expansion and better sealing result. It
has wider application, more optimized structure and lighter body mass, which
help improve the working environment of drilling motors, thus prolonging the
4. High-Temperature Resistant Motor
High-temperature resistant motor adopts
the stator rubber made by special processes formula, to ensure the normal
operation at a high temperature of 150℃, which is suitable for high temperature
well and ultra-deep well drilling.
Rotor Surface Treatment
Special chromium plating method can
control the ratio of the valley/peak chromium coating to 1:1.Tungsten carbide
coating of rotor can enable the rotor to work normally in saturated saltwater
mud, which successfully prevents the corrosion of chrome plated rotor by
Replaceable Sleeve Stabilizer
In order to meet the needs of different
drilling condition, different types of stabilizers is equipped on the housing
of the driving shaft: fixed and replaceable type available.