最新測井專利(外國專利)

摘要：專利名稱:ESTIMATION OF HORIZONTAL STRESSES AND NONLINEAR CONSTANTS IN ANISOTROPIC FORMATIONS SUCH AS INTERBEDDED CARBONATE LAYERS IN ORGANIC-SHALE RESERVOIRS.專利申請號:US201716306688公開號:US2019330981(A1)申請日:2017.05.31公開日:2019.10.31申請人:Schlumberger Technology Corporation Methods and systems are provided that identify relatively large anisotropic horizontal stresses in a formation based on(i)azimuthal variations in the compressional and shear slownesses or velocities of the formation measured from ultrasonic data acquired by at least one acoustic logging tool as well as(ii)cross-dipole dispersions of the formation measured from sonic data acquired by the at least one acoustic logging tool.In addition,the azimuthal variations in the compressional and shear slownesses or velocities of the formation and dipole flexural dispersions of the formation can be jointly inverted to obtain the elastic properties of the rock of the formation in terms of linear and nonlinear constants and the magnitude of maximum horizontal stress of the formation.A workflow for estimating the magnitude of the maximum horizontal stress can employ estimates of certain formation properties,such as overburden stress,magnitude of minimum horizontal stress,and pore pressure.

關鍵詞：DIPOLEDISPERSIONESTIMATES

分類號： O17[理學—基礎數學]