公开(公告)号：AU631409B2

公开(公告)日：1992-11-26

申请号：AU5239090

申请日：1990-03-29

Applicant: THE BRITISH PETROLEUM COMPANY P.L.C.

Inventor： DAVID WILLIAM MELLOR ,  JOHN WILLIAM AIDAN MILLAR

IPC: E21B43/26 ,  E21B49/00 ,  G01V1/44

公开(公告)号：AU632105B2

公开(公告)日：1992-12-17

申请号：AU5238990

申请日：1990-03-29

Applicant: THE BRITISH PETROLEUM COMPANY P.L.C.

Inventor： DAVID WILLIAM MELLOR ,  JOHN WILLIAM AIDAN MILLAR

IPC: E21B43/26 ,  E21B49/00 ,  G01V1/44

Abstract: A method for determining the height and length of a fracture (2) in a borehole (1) involves generating pressure waves at closely spaced frequencies by means of a transmitter (3) at the wellhead. The response at the wellhead of the wellbore-fracture system to the resultant standing waves is measured by means of a transducer (6). A theoretical model of the wellbore-fracture system is generated and compared with the measured response to determine the height and length of the fracture.