Drill bits are the most widely used in oil drilling and geological drilling. Tricone bits have the effect of rocking, crushing and shearing the formation rock during rotation. Therefore, the roller cone bit can adapt to various soft, medium and hard formations. Especially after the emergence of jet-type roller bits and long-nozzle roller cone bits, the roller bit drilling speed is greatly increased, which is a major revolution in the development of roller cone bits. Tricone bit by tooth type can be divided into milling teeth (steel teeth) roller bit, insert the tooth (carbide roller gear set) roller bit; according to the number of roller can be divided into single cone, double cone , Tricone and multi-roller bit. The most widely used at home and abroad, the most common is the tricone bit.
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 shirttail lip.
Hardmetal and wear resistant carbide were applied to shirttail and shirttail lip.
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.
Specifications
| Bit Diameter |
IADC |
Applications |
Special Features(Cutting Structure,Lug Protection) |
Weight |
PIN Conn |
Operating Suggestions WOB/RPM |
| Ibs |
KG |
| 9 7/8” 251mm |
635 |
Medium-hard and abrasive formations with high compressive strengths. |
Coical on gage and inner rows;Hardmetal on lug;Wear resistant carbide on shirttail lip and lug. |
143 |
65 |
6 5/8”API |
29,630-59,250Ibs/100-60RPM |
Feature Advantage
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.
Product Tags:
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635 IADC Code Tricone Carbide Insert Drill Bits 9 7/8" API Pin Connection Images
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