Tool Joints最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

Drill pipe float valves are cast out of alloy steel specifically for Harsh drilling environment.

Heat treating to prevent the corrosive effects of hydrogen-sulfide gas (H2S).

Manufacturing from one-piece casting to produce a superior and more reliable valve body

KELLY COCK VALVES

Drill Pipe Float Valve最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

TC Bearing surface with the Tungsten Carbide material,special solder and welded to a whole body. with the basis part through sinter treatment, makes the Tungsten Carbide Bearing with the high strength,long life,anti-wear,anti-impact and high load. 

We can provide all kinds of tungsten carbide bearing on DRILL MOTOR.

TC Bearing最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

PDC bearing have high resistance to grinding and can operate at high temperatures and can withstand large axial loads. PDC materials have a low friction coefficient and are not affected by natural or mud chemicals present in the well.

PDC Bearing最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

BALL BEARING最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

I. The Principle of Drill Motor

Drill motor is a kind of PDM (positive displacement motor) that converts the hydraulic pressure energy into mechanical energy. As the high-pressure drilling mud passes the motor inside, the motor generates torque which drives the rotary movement of the rotor in motor. The torque and the movement of the motor are delivered to the bit by driving shaft so as to make the drilling work.

II. The Components and Their Functions

DY-drill motor mainly consists of by-pass valve, motor, universal shaft, and drive-shaft. There is also a bent-sub in bent housing drill motor.

III. Model

we can provide 17 different series, including 45, 60, 73, 89, 95, 120, 130, 140, 146, 165,172, 185, 197, 203, 216, 244, 286, and each series has three categories, which are vertical motor, single bent angle motor, double bent angle motor.
Drill motors are available for the drilling in vertical wells, directional wells, cluster wells and horizontal wells. Especially, the minor diameter motors represented by 5LZ73, 7LZ89, 7LZ95, 7LZ120 etc. can be used for the drilling applications in both casing window sidetracking and workover operations.

DRILL MOTOR最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

Application

Kelly Cock valves are located within the drill string that allow for free-passage of drilling fluid without pressure loss and are specifically designed for effective control of blow outs and/or mud loss control.

Kelly Cock valves Features

D?Valves manufactures Kelly Cock bodies from chromoly steel and uses the latest in stainless, Monel and bronze for the internal parts, meeting NACE specifications for use in sour service. Kelly Cock are available in one or two piece body construction and are supplied with either API or proprietary connections. Kelly cocks are available in 5000 or 10,000 PSI.

All Kelly Cocks are extensively tested in our facilities to ensure the highest quality and that the product will perform to specifications when used in the field.

Kelly Cock valves Benefits

• Actuator can be attached to certain models
• Comes with certified test report
• Positive sealing in both directions, even at low pressures
• H2S corrosion resistant as per NACE MR0175
• Available with a wide variety of sizes and end connections
• One piece body or two piece body with full drift bores
• Operating wrench and thread protectors included
• Major repair kits available for every valve
• Identifiable open and close markings
• Documented history for all manufactured products
• Service and support by D?Valves

KELLY COCK VALVES最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。

Turbine Drill Blade最先出現(xiàn)在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD。