FIXED DIAMETER HOLE OPENER
TIANHE-DT-FDHO
TIANHE Fixed Diameter Hole Openers are designed for use in soft clays and shales to medium-hard shales and limestones. It is particularly effective in sticky formations where balling problems are encountered. Three jets with replaceable nozzles continuously clean the tool’s cutting structure, clearing debris buildup and increasing penetration.
Quantity
Fixed Diameter Hole Openers are used in the following conditions:
1. When drilling of a big hole is not possible because of rig capacity.
2. When a satisfied penetration rate is not obtained when drilling a big hole, it is used after drilling is completed with a smaller bit.
3. When the hole direction must be controlled.

When ordering please specify
● Hole size;
● Pilot hole size;
● Top and bottom connections;
● Fishing neck and bottom neck O.D and length;
● Type of cutters.

Tianhe Oil Group Co. Ltd. is a world-leading company with its business covering: Explore of oil, natural gas, shale oil & gas, geothermal energy, mine exploitation and the drilling tools technology. We provide our customers with solutions, products and services. Tianhe devote us in serving global customers under a complete service chain. Until now, our business has covered over 50 countries in the world. The company has established a close strategic partnership with some world-known oil companies and oil service companies NOV, etc.
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