The invention discloses a method for estimating the velocity of transverse
waves based on the inversion of an equivalent
elastic modulus for self-adapting matrix minerals, which belongs to the field of
exploration geophysics, and used for solving the problem that in a conventional method for estimating the velocity of transverse
waves based on a Xu-White model, an
elastic modulus for matrix minerals is difficult to set accurately. The method comprises the following steps of: (1) setting the Poisson ratio of a dry
core sample at a single
logging depth point and the value selection range and initial value of an equivalent
bulk modulus for matrix minerals; (2) carrying out inversion solution on a same fluid item from two different angles by using two different fluid item
calculation methods so as to invert an optimal Poisson ratio of the dry
core sample and an optimal equivalent
bulk modulus and an optimal equivalent
shear modulus for matrix minerals; and (3) estimating the velocity of transverse
waves by using a simplified Xu-White model. In the method disclosed by the invention, the equivalent
elastic modulus for matrix minerals is taken as an object of study, through reducing the number of target parameters, the precision and reliability of the method for estimating the velocity of transverse waves are effectively improved.