What is the relationship between drill bit type and stratigraphy
The selection of drill bits is a very important part of the drilling project, and different types of drill bits are suitable for different stratigraphic conditions. Let's learn more about it below:
Common types of drill bits and applicable formations
Characteristics: fast drilling speed, strong cutting force, little damage to the formation.
Applicable strata: soft rock, medium-hard rock, shale and other strata.
Advantages: Long life, good drilling quality.
Disadvantages: Sensitive to impact, not suitable for high hardness formations.
Diamond drill bit:
Characteristics: fast drilling speed, strong cutting force, suitable for hard rock and complex formations.
Suitable for: granite, marble and other super-hard rock formations.
Advantages: Long life, high quality drilling.
Disadvantages: Expensive.
Core Drill Bit:
Characteristics: Used for taking core to analyze the stratum.
Applicable strata: various strata.
Principles of selecting drill bits
Stratigraphic conditions: The hardness of the formation, the type of rock, the inclination of the formation and other factors will affect the selection of the drill bit.
Drilling fluid: The performance of the drilling fluid will affect the life of the drill bit and the drilling speed.
Drilling parameters: Reasonable setting of drilling pressure, speed and other parameters have an important influence on the performance of the drill bit.
Economic factors: The price and life of the drill bit are also factors to be considered.
Factors affecting bit life
Drill bit material: The hardness and toughness of the drill bit material directly affects its life.
Drilling parameters: Excessive drilling pressure and high rotational speed will accelerate the wear of the drill bit.
Stratigraphic conditions: Hard materials and inclusions in the stratum can cause damage to the drill bit.
Drilling fluid performance: Insufficient cooling and lubricating performance of the drilling fluid will accelerate the wear of the drill bit.
Summarize
Choosing the right drill bit is the key to ensure the smooth progress of drilling. When choosing a drill bit, you need to consider the formation conditions, drilling fluid performance, drilling parameters and other factors to achieve the best drilling results.
If you don't know how to choose the right water well drill bit, click the link below to contact our professional team directly.
Contact us (gzpearldrill.com)
