首页>
外国专利>
BOREHOLE APPARATUS AND METHODS FOR SIMULTANEOUS MULTIMODE EXCITATION AND RECEPTION TO DETERMINE ELASTIC WAVE VELOCITIES, ELASTIC MODULII, DEGREE OF ANISOTROPY AND ELASTIC SYMMETRY CONFIGURATIONS
BOREHOLE APPARATUS AND METHODS FOR SIMULTANEOUS MULTIMODE EXCITATION AND RECEPTION TO DETERMINE ELASTIC WAVE VELOCITIES, ELASTIC MODULII, DEGREE OF ANISOTROPY AND ELASTIC SYMMETRY CONFIGURATIONS
展开▼
机译:同时进行多模激励和接收以确定弹性波速度,弹性模量,各向异性和弹性对称性的程度的钻孔设备和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An acoustic borehole logging system for generation and detection of multipole modes used to determine elastic properties of earth formations characterized as inhomogeneous anisotropic solids. The system concurrently generates and senses monopole, dipole, quadrupole and any higher order pole in the borehole/formation system in order to characterize the elastic properties and stress state of material penetrated by the borehole. Multipole modes of all orders are induced simultaneously without the need for separate transmitter and receiver systems. Performance of the logging system is not compromised due to eccentering of the axis of the tool in the borehole, tool tilt with respect to the axis of the borehole, or mismatch of response sensitivity of multiple receivers within the tool. The system comprises apparatus for generating and sensing acoustic signals in a borehole in an earth formation, and further comprises a processing method by which the sensor response signals are processed and analyzed to obtain desired formation parameters of interest.
展开▼