Effects & merit of Smooth-in Lifter for eliminating the core jam

• No inside of surface step between inner extension and core lifter
• To suppress resistance as much as possible between core lifter and core by remove the inside of the groove
• Expand and contract diameter of the lifter very smoothly by properly disposed outside groove

 

Usage for Smaller Inside Diameter Lifter

• When the core is made skinny by the core is corrupted
• If the standard core lifter & smooth-in lifter don't work well for sandstone, shale and others
• The smaller inside diameter lifter is 0.5mm～1.0mm smaller than the standard core lifter

 

Description for Core Lifters

Standard Core Lifter	Smooth-in Lifter	Smaller Inside Diameter Lifter
There is STEP between core lifter and inner extension	There is NO STEP between core lifter and inner extension	There is GAP between core lifter and inner extension
Recommend for hard layer	Recommend for soft & crack layer	Please use the standard & smooth-in lifter first before smaller inside diameter lifter
Core Sample

Please ask more detail and different type of items also available