This inventor holds 2 USPTO granted patents and 1 published patent application, plus 2 CIPO patents. Top assignee: Schlumberger Technology Corporation. Active years: 2010-2013.
Company Filing History:
Years Active: 2010-2013
Title: The Innovative Contributions of Gunnar Debruijn
Introduction
Gunnar Debruijn is a notable inventor based in Calgary, Canada. He has made significant contributions to the field of wellbore cleaning and cementing operations. With a total of 2 patents, his work has advanced the methods and materials used in the oil and gas industry.
Latest Patents
Gunnar's latest patents include innovative compositions and methods for cleaning a wellbore prior to cementing. One of his patents focuses on single-phase microemulsions, which consist of a solvent, a surfactant blend, and a carrier fluid. These microemulsions are effective spacer fluids during cementing operations. The solvent can be selected from monoterpenes, diterpenes, and alkyl or aryl esters of short-chain alcohols. The surfactant blend includes a water-wetting surfactant or nonionic surfactant, a co-surfactant, and an oil-solubilizing surfactant, combined with an aqueous carrier fluid to produce the well-treatment microemulsion.
Another patent addresses carbonaceous extenders for flexible cement. This flexible cement, stable at high temperatures, contains an extender made from finely ground bituminous coal and/or finely ground coke derived from coal and/or liquid hydrocarbons. The preferred cokes are produced from bituminous coals and petroleum, heavy oil, and oil from tar sands, oil shales, or oil sands. The coke can constitute up to 100 percent by weight of the cement, with a particle size ranging from 1 to 1000 microns, making it effective as an extender while ensuring low specific gravity in slurries and set cements.
Career Highlights
Gunnar Debruijn is currently employed at Schlumberger Technology Corporation, where he continues to innovate in the field of cementing and wellbore cleaning technologies. His work has been instrumental in improving the efficiency and effectiveness of cementing operations in the oil and gas sector.
Collaborations
Gunnar has collaborated with several talented individuals in his field, including Emmanuel Therond and Syed Afaq Ali. Their combined expertise has contributed to the successful development of innovative solutions in wellbore treatment.
Conclusion
Gunnar Debruijn's contributions to the field of wellbore cleaning and cementing operations are noteworthy.