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Impression Block // Casing Size 5 1/2" Outer Diameter 110 mm Inner Diameter 12 mm Connectors NC31

Supplier Tianhe Oil Group

Casing Size

Outer Diameter

Inner Diameter


Product Technical Configuration

Outer Diameter 110 mm
Casing Size 5 1/2"
Inner Diameter 12 mm
Connectors NC31

Product country of origin: China

Location of the product: China

Available:  For Sale

Supplier reference: X03-11000

Original manufacturer: Tianhe Oil Group

Finalized quotes will be sent directly to the supplier


QM type Impression Block is an effective tool used to determine the dimensions, configuration, condition, and location of the top end of a fish in the hole.


Tianhe Oil Group Co. Ltd. is a global group. We are specialized in the production of drilling tools, including R&D, production, selling, leasing, maintenance and services. Tianhe has 5 main businesses spread across the globe in more than 50 countries in the world.

Tianhe Oil Group management prioritize its people, technology, continuous improvement and building brand awareness. Our mission is to continuously strive innovation and improvement and expand our business in the oilfield. We increased the investment in technology research and development, always looking to provide our global customers with the best technical products and services.

Tianhe Oil Group strongly believes and promotes Total Quality Management, implements the ISO quality management system, HSE management system and API standards. Our manufacturing facilities are well equipped with four automated induction heat treatment lines and dozens of other types of heat treatment ovens and well furnaces (Box type, well type, carburizing heat treatment furnace) to ensure full coverage of heat treatment required by the different products.

So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries. For example, we have partnered with Schlumberger, Halliburton, Baker Hughes, Weatherford, Shell, NOV, etc.

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Related Product Variants

Product Name Outer Diameter Casing Size Inner Diameter Connectors
Impression Block 305 mm 13 3/8" 38 mm 6 5/8 REG
Impression Block 79 mm 4 " 12 mm NC23
Impression Block 89 mm 4 1/2" 12 mm NC26
Impression Block 98 mm 5 " 12 mm NC26
Impression Block 110 mm 5 1/2" 12 mm NC31
Impression Block 146 mm 7" 20 mm NC38
Impression Block 203 mm 9 5/8" 25 mm NC50

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