bearing Soft formations Tricone Drill Bit 6 3/4" 532 171mm
LUGAND SHIRTTAIL ENHANCEMENT
1. Conventional Shirttail DesignThis shirttail features
a”terraced”design,which increases escape area and the bailing
velocity and decreases cuttings regrind and wear on shirttail and
Hardmetal and wear resistant carbide were applied to shirttail and
2. Particular Shirttail Design
This shirttail features a”terraced”design,which increases eacape
area and the bailing velocity and decreases cuttings regrind and
wear on shirttail and shirttail lop.
Hardmetal was applied to shirttail lip and lug.Wear resistant
catbide on shirttail lip and lug and around the”terrace”lower part
of shirttail lug.
1. Price commitment: in order to ensure the high reliability of
products, raw material selection are using grapefruit brand
products; under the same competitive conditions, and not to reduce
product technical performance on the basis of sincerity at a
favorable price to customers.
2. Quality commitment: product manufacturing and testing have
quality records and inspection data; the performance of the product
can withstand customer inspection.
3. Customer service: in order to create new diamond brand, enhance
the visibility of enterprises,establish corporate image, we serve
customers with the principle of "preferential prices, good service,
reliable product quality" principle.
Please select the applicable formation and parameters according to
Carefully check the bits appearance and to check the bits threaded
end face,whether the serial number on the box and certificate.
Selection of WOB and RPM should be within the limits of the
recommended parameters, higher WOB and RPM cannot be used
Bottom hole must be clean and bit must not be used for long section
Drilling process must operate smoothly, find that there is Bie jump
on abnormal phenomenon, should be timely analysis and take
The bit should be kept indoor with dry and well ventilated
conditions at 10-33℃ and kept from sunshine and rain. Stored under
such conditions, quality of bit is guaranteed for 3 years.
|Bit Diameter||IADC||Applications||Special Features(Cutting Structure,Lug Protection)||Weight||PIN Conn||Operating Suggestions WOB/RPM|
|6 1/4” 171mm||532||Soft formations with low compressive strengths.||Coical on gage and inner rows;Hardmetal on lug;Wear resistant
carbide on shirttail lip and lug.||46||21||3 1/2” API||13,500-33,750Ibs/110-80RPM|