Overview

The objective of this project is to develop the next generation well cement with remarkable multifunctional, high performance characteristics and durability properties to prevent offshore spill and leakage in extreme high temperature, high pressure (HTHP) and corrosive conditions.

As oil and gas production wells require deepening due to hostile deep-water environments, the risk of material failure and potential leaks or spills increases because of insufficient well cement products. The process of well cementing is crucial in extracting energy from oil and gas reservoirs because the main objective is to restrict movement of fluids between formations and ultimately protect the casing during HTHP conditions.

This project aims to increase cost-efficiency and production, mitigate risk over the productive life of the wells, and improve environmental and worker safety. A new well cement with high-performance characteristics — including mechanical, thermal, rheological, and durability properties — will prevent offshore spill and leakage in extreme conditions.

Approach

This research project is being conducted in collaboration with C-Crete Technologies and NETL researchers.

The first phase of the project will explore the corrosion resistance of the newly developed proof-of-concept hexagonal boron-nitride/class H well cement composite formulation. The actual barrier efficiency and performance of this cement formulation will be tested against gas/liquid leakage inside a simulated environment.

In phase two, C-Crete will work with the American Petroleum Institute (API) to review and improve recommended practices for testing the well cement. NETL will work with industry to determine the various tests needed, the relevant parameters, and the range of values of the parameters.

The final phase will include incorporating the results with theoretical knowledge to scale-up the technological components and establish standard protocols for inclusion in API recommended practices.

Expected Outcome

The successful development of the next-generation well cement will prevent offshore spill and leakage in extreme conditions and other applications (including unconventional resources, geothermal wells, and thermal recovery wells). The formulation, materials, and recommended procedures will be available for use by offshore communities.

Research Products

Explore research products that are related to this project.