This inventor holds 11 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent. Top assignees: Baker Oil Tools, Inc., Sc Asset Corporation, Ctes, L.c.. Active years: 1984-2024.
Company Filing History:
4 out of 130 
4 out of 25 
1 out of 8 Years Active: 1984-2024
Title: Innovations by David J Speller in Fracking Technology
Introduction
David J Speller is a notable inventor based in Houston, TX, who has made significant contributions to the field of fracking technology. With a total of 11 patents to his name, Speller has developed innovative solutions that enhance the efficiency and effectiveness of hydrocarbon extraction processes.
Latest Patents
Among his latest patents is an all-in-one system and related method for fracking and completing a well, which automatically installs sand screens for sand control immediately after fracking. This invention features an actuation member designed for use in fracking operations, which locates a sand screen at a desired location along a tubing liner just before fracking begins. This eliminates the need to trip out the frac string prior to commencing production. The actuation member consists of a cylindrical hollow collet sleeve with radially-outwardly biased protuberances that engage a corresponding mating profile on sliding sleeve members within the tubular liner. Additionally, a longitudinally-extending sand screen is provided, which is slidable on the actuation member. A spring member is also included, which is compressed by the sand screen when pressurized fluid is applied and decompresses upon removal of the fluid.
Another significant patent involves a method for fracking a hydrocarbon formation. This method includes an actuating member that flows along a production string and features a unique key portion that engages a sliding sleeve covering an associated port in the production string. By applying uphole fluid pressure, the sliding sleeve and actuating member move to uncover the port. After fracking and the cessation of pressurized fracturing fluid, a compressed spring on the actuating member decompresses to reposition a sand screen beneath the port, preventing sand from entering the production string. This innovative approach allows for the flowable insertion of additional keyed actuating members, enabling the opening of successive uphole ports and fracking in those regions.
Career Highlights
David J Speller has worked with several prominent companies in the oil and gas industry, including Baker Oil Tools, Inc. and Sc Asset Corporation. His experience in these organizations has contributed to his expertise in developing advanced fracking technologies.
Collaborations
Throughout his career, Speller has collaborated with talented individuals such as Sean Patrick Campbell and Daniel Rojas, further enhancing the innovative projects he has undertaken.
Conclusion
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