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Research on the Development and Plugging Capacity of a Honeycomb Porous Lost-Circulation Material
Jie Ren1,2, Peng Xu1,3,2, Mingbiao Xu1,3
1College of Petroleum Engineering, Yangtze University, Wuhan 430100, China.
ACS Omega
|July 5, 2022
Summary
A novel highly elastic honeycomb porous lost-circulation material (LCM) was developed to prevent well leakage accidents in oil and gas exploitation. This advanced LCM offers superior sealing strength and durability compared to existing materials.
Area of Science:
- Petroleum Engineering
- Materials Science
Background:
- Well leakage accidents pose significant economic risks in oil and gas exploration and exploitation.
- Current lost-circulation materials (LCMs) exhibit limitations such as low sealing strength, complex application, and high costs.
Purpose of the Study:
- To develop a highly elastic honeycomb porous LCM with improved performance for well plugging.
- To address the shortcomings of existing bridge LCMs.
Main Methods:
- Development of a novel highly elastic honeycomb porous LCM.
- Indoor evaluation of material properties including compression resilience, tensile strength, and acid resistance.
- Assessment of material performance under aging conditions (100 °C).
Main Results:
- The developed LCM demonstrates excellent compression resilience (50% permanent deformation < 10%) and tensile strength (> 100 kPa).
- It exhibits high retention rates (> 97%) under acidic conditions and is largely acid-insoluble.
- Material properties remain stable after 100 °C aging.
Conclusions:
- The highly elastic honeycomb porous LCM effectively seals fractures due to its rebound characteristics.
- This new material offers a promising solution for reducing well leakage and economic losses in oil and gas operations.
