Salem Lotfi Elsayed

Title: Salem Lotfi Elsayed and Wireline Operations in Under-Balanced Wells.

Introduction

Salem Lotfi Elsayed is an inventor associated with Hurghada, Egypt, and Schlumberger Technology Corporation. His patent work addresses how to conduct logging and other operations in an under-balanced well while maintaining well control and avoiding the need to kill the well.

Latest Patents

The provided information lists 1 patent for Elsayed: “Method and Apparatus for Installing a Wireline for Logging or Other Operations in an Under-Balanced Well.” The invention describes an apparatus and method for inserting a wireline through a blowout preventer into an under-balanced open-hole well. Its dual-throated blowout preventer uses a movable sealing element to accommodate both a wireline and a drill string during assembly, then seals the throats to isolate them. This arrangement allows pressure to be maintained on the wireline through a packoff and on the drill string through the blowout preventer’s rams, supporting well control while reducing the risk of formation damage.

Career Highlights

Elsayed’s listed patent reflects work on equipment and procedures for well logging under pressure. The approach is designed to enable operations without killing the well, while preserving pressure control over both the wireline and drill string.

Collaborations

The information provided identifies Schlumberger Technology Corporation as Elsayed’s company and Waqar Khan as a coworker. These details indicate a professional connection, but do not specify the nature of their collaboration on the patent.

Conclusion

Salem Lotfi Elsayed’s listed invention focuses on safely installing a wireline for logging in an under-balanced well, combining pressure control with an approach intended to avoid formation damage.