Denis Doremus is a notable inventor based in Houston, TX, who has made significant contributions to the field of well casing technology. With a total of two patents to his name, Doremus has developed innovative methods that enhance the efficiency and effectiveness of drilling operations.

Latest Patents

Doremus's latest patents include a whipstock orientation method and system. This invention involves a deflecting tool or whipstock that is oriented and anchored in a well casing during a single trip of a running string. The method allows for the formation of a window in the wall of the casing at a selected azimuth. The angular orientation of the deflecting tool is measured, and signals representative thereof are transmitted to the surface. Once the desired orientation is achieved, the anchor is actuated to prevent movement of the deflecting tool. The orientation adjusting and measurement tools are then released from the whipstock and removed from the casing. Following this, a downhole motor and milling bit are run into the casing on coiled tubing to create a window through the wall opposite the deflection surface of the whipstock, enabling the drilling of a new borehole outside the casing.

Another significant patent by Doremus involves forming a casing window off a whipstock set in a cement plug. This method includes forming a cement plug in the casing, drilling a laterally offset hole in the cement plug, and orienting and setting a whipstock in the offset hole. The whipstock is then used to drill an elongated window through the casing wall opposite its deflector surface. The drilling steps utilize a mud motor with a bent housing to establish a toolface for the bit, ensuring proper orientation through downhole measurement and transmission of orientation signals to the surface.

Career Highlights

Denis Doremus works at Dowell, a division of Schlumberger Technology Corporation, where he applies his expertise in well casing technology. His innovative approaches have contributed to advancements in drilling efficiency and cost reduction.

Collaborations

Doremus has collaborated with notable coworkers, including Larry J. Leising and Mansour S. Shaheen, who have also contributed to the field of well casing technology.

Conclusion

Denis Doremus's contributions to well casing technology through his innovative patents demonstrate his commitment to improving drilling operations. His

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