Introduction to drilling jar
2023-03-17
Drilling jar
Overview
In the drilling operation, due to various reasons such as complex geological structure, improper technical measures, mud, pipe string, wellbore, etc., accidents of drilling tools sticking often occur. Drill sticking has a great impact on drilling operations.If it is not handled properly, it will not only consume a long time and lose drilling footage, but also may worsen the accident and even cause the oil and gas well to be scrapped.The jar is one of the effective tools to relieve stuck drill accidents. When the drilling tool is stuck, the stuck point can be loosened by upward or downward strong shock force through the stuck point of the jar, so as to achieve the purpose of quickly releasing the stuck.Because the drilling jar greatly improves the handling efficiency of stuck pipe accidents, the jar has been widely used in drilling and workover operations.
Overview
In the drilling operation, due to various reasons such as complex geological structure, improper technical measures, mud, pipe string, wellbore, etc., accidents of drilling tools sticking often occur. Drill sticking has a great impact on drilling operations.If it is not handled properly, it will not only consume a long time and lose drilling footage, but also may worsen the accident and even cause the oil and gas well to be scrapped.The jar is one of the effective tools to relieve stuck drill accidents. When the drilling tool is stuck, the stuck point can be loosened by upward or downward strong shock force through the stuck point of the jar, so as to achieve the purpose of quickly releasing the stuck.Because the drilling jar greatly improves the handling efficiency of stuck pipe accidents, the jar has been widely used in drilling and workover operations.
Classification of drilling jars
1. Classification of drilling jars:
1. Classified according to the effect of the drilling jar.
Upstroke type, upward shock on the stuck drilling tool.
Downward strike, shocking downwards on the stuck drill.
Vibrate up and down, and vibrate the stuck drilling tool upward or downward.
1. Classification of drilling jars:
1. Classified according to the effect of the drilling jar.
Upstroke type, upward shock on the stuck drilling tool.
Downward strike, shocking downwards on the stuck drill.
Vibrate up and down, and vibrate the stuck drilling tool upward or downward.
2. Classified according to the principle of the drilling jar:
1. Mechanical
2. Hydraulic type
3. Hydraulic mechanical type
1. Mechanical
2. Hydraulic type
3. Hydraulic mechanical type
TIANHE Star Products
QY Type high temperature hydraulic drilling jar
QY type high temperature hydraulic drilling jar is a new generation of double-acting hydraulic jar that is fully upgraded by our company on the basis of the original QY full-hydraulic drilling jar.it has the characteristics of simple operation,adjustable shock tonnage,high temperature resistance,etc,This type of drilling jar adopts a new hydraulic delay release system,which has excellent reliability and wide adaptability.
QY Type hydraulic drilling jar
QY type hydraulic drilling jar is a new generation of double-acting hydraulic jar that is fully upgraded by our company on the basis of the original QYSZ II type full-hydraulic drilling jar.It has the characteristics of simple operation,adjustable shock tonnage,high temperature resistance,etc.This type of drilling jar adopts anew hydraulic delay release system,which has excellent reliability and wide adaptability.
QYSZ III Double acting hydraulic drilling jar
QYSZ III Double acting hydraulic drilling jar is a new hydraulic drilling jar with locking mechanism developed on the basis of the structure of QYSZ II double-acting hydraulic drilling jar.Besides the advantages of QYSZ II type,it also has the following advantages.
1.The mechanical locking mechanism prevent unnecessary wear of the internal parts during the working process,and improves the working life.
2.The mechanical locking mechanism is functional safety and reliability,which is made by special process.The friction resistance is small,and the locking force islinear stability.
3.The locking mechanism can avoid the failure jarring caused by misoperation when connect simple root to the drill string or contact the hole bottom.
2.The mechanical locking mechanism is functional safety and reliability,which is made by special process.The friction resistance is small,and the locking force islinear stability.
3.The locking mechanism can avoid the failure jarring caused by misoperation when connect simple root to the drill string or contact the hole bottom.
