TY JOUR TI Orthorhombic model of vertically fractured shales KW shales KW anisotropy KW fractures KW VTI KW HTI KW orthorhombic medium KW Thomsen parameters. JO Vestnik AGGE AU Chichinina, T.I. AU , .. PY 2025 IS 0 PB Association of Geologists, Geophysicists and Engineers