About us
About us
Gerpon is mainly dealing in producer and wholesale of all kinds of wear parts and special steel product at home and abroad.
Production Equipment
Production Equipment
Precise heat treatment of quenching, tempering and normalizing could make the steels in a perfect c..
Company Culture
Company Culture
Unity, hard work, realistic, innovative
Company  news
Company news
Industry News
Industry News
Inspection equipment
Inspection equipment
Separated quality testing department equipped advanced equipment
Quality control process
Quality control process
Quality control process
Wear parts
Wear parts
Widely used in foundation drilling,coal mining industry,geotechnical engineering,etc.
Global market
Global market
Domestic market
Domestic market

Application

Roller cutter

 Roller cutter

Detailed introduction

Regardless of type, drill bits must satisfy two primary design goals: maximize the rate of penetration (ROP) of the formation and provide a long service life. The reason for this is a direct consequence of the rotary drilling method. Modern oilfield drilling operations require substantial capital and operating expense to mobilize. It might cost hundreds of thousands of dollars per day to place the equipment and manpower resources required for drilling on site. Once the rig is mobilized, these expenses are incurred regardless of whether or not a wellbore is actually being drilled. Obviously the faster the wellbore reaches required total depth, the lower the overall cost. Additionally, if the bit fails or wears out, it must be recovered and replaced by removing the perhaps several miles of the drill pipe to which it is attached. During this time, known as a “trip”, the depth of the hole is not advanced, but much of the operating costs are still incurred. For this reason, the effectiveness of a bit is often measured as drilling cost (in dollars) per foot of hole drilled, where a lower number indicates a higher performing bit. Note that the cost of the bit itself is a rather small part of the drilling cost use to calculate the cost per foot.