Details

Autor(en) / Beteiligte

• Wang, Zi-ao
• Li, Xiang-wen
• Liu, Yong-lei
• Bi, Jiao-ying
• Chen, Yi-ren
• Zhang, Ming
• Zhang, Guan-qing
• Jia, Chun-zi

Titel

An Improved Pre-stack Detection Method of Fracture Anisotropy and Its Application

Ist Teil von

• Proceedings of the International Field Exploration and Development Conference 2021, 2022, p.3813-3821

Ort / Verlag

Singapore: Springer Nature Singapore

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Fracture detection has become an essential part of the exploration and development of carbonate reservoirs. Conventional post-stack detection methods cannot identify small-scale fractures, while the pre-stack detection method of fracture anisotropy is restricted by unstable ellipse fitting results and interference from the overlying strata thickness change. This paper proposes a modified anisotropy procedure that combines the advantages of the sub-azimuth data post-stack detection and the OVT domain pre-stack detection method of fracture anisotropy. It uses interpretative processing to calculate the fracture optimized attributes. The application in the Yingmai 2 block of the Tarim Basin has improved the result of fracture detection, which matched the interpretation results of imaging logging. This method eliminates the interference from the sudden change of ellipse fitting results and overlying formation. It effectively supports the wells connective analysis and expands the application scope of the pre-stack fracture detection method of fracture anisotropy.