Keystone Engineering
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Since 1950 Keystone Engineering Company has maintained a proven reputation for reliable products in the oilfield industry. Product experience includes the manufacture and production of formation measurement instrument assemblies for wireline, MWD, and LWD; and the manufacture and production of high-temperature, 400° F (204° C), composite bridge plugs.

Keystone Engineering is a leader in the fabrication and manufacture of downhole high-strength and high-temperature composites. Keystone Engineering has developed downhole tool solutions for the upstream petroleum industry since 1950. The company currently covers 83,000 square feet of manufacturing and office space. We have plans to build a new 50,000 square foot facility in the Pearland area in the coming months bringing the company footprint to 133,000 square feet.
Services
We are responsive with fast and accurate price quotations of quality manufactured products delivered on-time.
Our Sales and Engineering staff are glad to discuss how we can solve your product design needs and composite material requirements, from prototype development through production runs.
We will be glad to discuss our capacity and capabilities for the contract manufacture of products.
All inquiries will be handled in full confidence in a prompt and professional manner.
Keystone Engineering maintains a quality control program with complete manufacturing documentation and traceability.
The program is in accordance with and exceeds MIL 9858-A for military systems requirements and is designed to achieve ultra-reliable products.
Strict documented quality control and inspection procedures ensure that all manufactured products are made from the finest materials to exact client specifications.
All our departments are committed to high quality workmanship and service.
With over 65 years of experience, Keystone Engineering Company is a versatile made-to-order manufacturer capable of producing a variety of machined parts and turnkey assemblies consisting of our advanced composite materials, metals, rubbers, and other various materials.
Our materials and products maintain a proven reputation of quality and performance in the oil industry.
Tooling, fixtures, gauges, molds, presses, and special proprietary equipment are designed and built in-house.
We have a proven track record of working directly with our customers and their associates to meet and exceed project goals.
Our turnkey assembly services combine composite, rubber and metal material components with rigorous electrical, pressure, and temperature performance specifications.
Composite material fabrication, precision machine work, and product assembly are performed in-house.
We have proprietary adhesive techniques for metal-composite-rubber sealing using our void-free resin system.
Rubber mandrel wrapping services may be performed in-house or outsourced to an approved vendor.
We maintain an approved vendors list for all outside processes.
Polymer Matrices Our advanced polymer matrices, Kemlox G and Kemlox HT-2, are designed for excellent performance at high-temperatures and high-pressures in a downhole environment.
Our experts will be glad to discuss how our high-temperature resin systems can serve your needs.
Our Kemlox G material is used in downhole tools operating up to 350°F.
Where higher temperature resistance is required, we recommend using our Kemlox HT-2 material.
Kemlox HT-2 performs well at temperatures in excess of 400°F.
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