What is a PDC bit?

What is a PDC bit?

Polycrystalline diamond compact (PDC) drill bits are made with synthetic diamond cutters in either steel or matrix body material. PDC drill bits revolutionized the drilling industry with a wide application range and high rate of penetration (ROP) potential.

What is bit HSI?

Abstract. Historically, parameters like junk slot area (JSA), face volume (FV) and hydraulic horsepower per square inch of bit area (HSI) have been used to empirically predict the balling performance of drill bits. These performance gauges, however, generally produce inconsistent results.

Who invented the PDC bit?

Entrepreneurs Ken Davis and Dusty Hicks experienced some success in South Texas in the late 1970s. The first widely applied PDC bits were developed by Drilling & Service (D&S), led by John Barr in the UK North Sea, and Stratabit led by Mahlon Dennis and Bill Mauer in the US.

How much is a oil rig drill bit worth?

At about $10,000-150,000 apiece, PDC bits generally cost five to 15 times more than roller cone bits.

How do you calculate hydraulic bits?

Drill Bit Hydraulic Horsepower & Impact Force Calculation It is commonly calculated with the equation HHP=P*Q/1714, where P stands for pressure drop in pounds per square in., Q stands for flow rate in gallons per minute, and 1714 is a conversion factor necessary to yield HHP in terms of horsepower.

What is the hydraulic horsepower?

is the horsepower equivalent of “lifting” a continuous volume rate of fluid to the height in ft represented by the pressure involved (as if a tall, open overflowing stand-pipe were connected to measure the pressure).

What are three advantages of PDC bits with regard to its steel head feature?

Advantages of Steel Based PDC Drill Bits

• The steel-bit bodies offer high resistance to impact loading.
• These are considerably stronger than matrix bodies.
• It boosts the possibilities of creating complex bit profiles and hydraulic designs.

Why is it called Silver Deming?

This company began back in 1854, when Albert R. Silver and John Deming formed a company to make agricultural machines, although the “Silver & Deming” name does not date back that far. In the later history of the company, Emmor W. Silver was a principal; he was perhaps a son of Albert.

How do you calculate TFA of bit nozzles?

In order to find the total flow area of each bit or reamer, you must add all area of each nozzle. The bit that has a total of 5 nozzles. Three nozzles have a diameter of 10/32 inch and other 2 nozzles are 12/32 inch diameter.

What is bit pressure drop?

The pressure drop at the nozzle area is a function of total flow area of the bit, flow rate and mud density.

How much HP do you need to run a hydraulic pump?

1 HP is required for each 1 GPM at 1500 PSI or any multiple of 1500 such as 3 GPM at 500 PSI, 2 GPM at 750 PSI, 1/2 GPM at 3000 PSI, etc. Another handy rule-of-thumb is that it takes about 5% of the pump maximum rated HP to drive the pump when unloaded and pressure is very low.

Why choose PDC drill bits?

Whether it is the Dynamus™ extended-life drill bit or Talon™ Strike PDC drill bit, our selection of PDC drill bits achieve maximum performance to lower your drilling cost. The wide application range for PDC bits requires unique PDC cutter technology to get the most drilling performance in each application.

What are shear bits PDC bits?

The SHEAR BITS PDC bit product line is configured to maximize the performance characteristics of different types of applications. As a result, the following series of bits are currently available:

Why choose shear bits’bodies?

SHEAR BITS has developed a new body construction that builds on the advantages of both traditional types, without any of the disadvantages associated with either type. SHEAR BITS’ bodies have the strength and accuracy of steel with superior wear resistance to matrix.

Why choose Optimus PDC bit cutters?

The wide application range for PDC bits requires unique PDC cutter technology to get the most drilling performance in each application. The Optimus cutter portfolio will maximize performance in any drilling challenge.