公开(公告)号：US4631963A

公开(公告)日：1986-12-30

申请号：US715796

申请日：1985-03-25

申请人： Eve S. Sprunt ,  Larry D. Smallwood

发明人： Eve S. Sprunt ,  Larry D. Smallwood

IPC分类号： E21B49/00 ,  E21B49/02 ,  G01N29/07 ,  G01N29/11 ,  G01N33/24 ,  G01N29/00

CPC分类号： G01N29/11 ,  E21B49/006 ,  E21B49/02 ,  G01N29/07 ,  G01N33/241 ,  G01N2291/102

摘要： Acoustic energy anisotropy is measured in a core sample from a subterranean formation. The core sample is shaped by having its outer surface cut to provide a plurality of pairs of parallel, planar outer surfaces about the length of the core sample. A pair of planar transducers are successively placed in contact with each of the pairs of parallel, planar outer surfaces, one of the transducers being a transmitting transducer and the other being a receiving transducer. Compressional or shear acoustic energy is transmitted through the core sample in the aximuthal directions that are perpendicular to each of the pairs of parallel, planar outer surfaces of the core sample. Any differences in travel time, attenuation, waveform or other acoustic properties for the acoustic energy transmissions in the plurality of differing azimuthal directions are a measure of the compressional or shear acoustic energy anisotropy of the subsurface formation.

摘要翻译： 在来自地层的岩心样品中测量声能各向异性。 芯样品通过其外表面切割成形以围绕芯样品的长度提供多对平行的平面外表面。 一对平面换能器被连续地放置成与每对平行的平面外表面接触，其中一个换能器是发射换能器，另一个是接收换能器。 压缩或剪切声能在垂直于芯样品的平行的平面外表面中的每一对的轴向方向上穿过芯样品。 在多个不同方位方向上的声能传输的行进时间，衰减，波形或其它声学特性的任何差异是地下地层的压缩或剪切声能各向异性的量度。

公开(公告)号：US4631964A

公开(公告)日：1986-12-30

申请号：US715795

申请日：1985-03-25

申请人： Eve S. Sprunt ,  Larry D. Smallwood

发明人： Eve S. Sprunt ,  Larry D. Smallwood

IPC分类号： G01N29/04 ,  G01N29/07 ,  G01N33/24 ,  G01N29/00

CPC分类号： G01N29/07 ,  G01N29/043 ,  G01N33/24 ,  G01N2291/015 ,  G01N2291/0422 ,  G01N2291/102

摘要： Vertical shear acoustic energy anisotropy of a subterranean formation is measured from a core sample of such formation. The core sample is shaped by having its outer surface cut to provide a pair of flat or planar surfaces along parallel spaced-apart planes. A pair of planar shear transducers are placed in contact with the pair of planar outer surfaces, one of the transducers being a transmitting transducer and the other being a receiving transducer. Shear acoustic energy is transmitted through the core sample in a basically elliptical pattern having an azimuthal direction within a plane parallel to the planar outer surfaces of the core sample. Any differences in travel time, attenuation, waveform or other acoustic properties for the acoustic energy transmissions in a plurality of differing azimuthal directions are a measure of the shear acoustic energy anisotropy of the subsurface formation.

摘要翻译： 地下岩层的垂直剪切声能各向异性是从这种岩层的核心样品测量出来的。 芯样品通过其外表面切割成形，以沿着平行间隔开的​​平面提供一对平坦或平面的表面。 一对平面剪切换能器放置成与一对平面外表面接触，其中一个换能器是发射换能器，另一个是接收换能器。 剪切声能通过核心样本以基本上椭圆形图案传播，其中方位角方向在与芯样本的平面外表面平行的平面内。 在多个不同方位方向上的声能传输的行进时间，衰减，波形或其他声学特性的任何差异是地下地层的剪切声能各向异性的量度。