公开(公告)号：US20050222775A1

公开(公告)日：2005-10-06

申请号：US10848806

申请日：2004-05-19

申请人： Saad Kisra ,  Henri-Pierre Valero

发明人： Saad Kisra ,  Henri-Pierre Valero

IPC分类号： G01V3/34 ,  G01V11/00 ,  G06F19/00

CPC分类号： G01V11/002 ,  G01V3/34 ,  G01V2210/6163

摘要： The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and/or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.

摘要翻译： 本发明涉及用于进行与地下地层相关的测量的方法和系统。 方法和系统有效地压缩数据，从而促进更有效的数据传输。 方法和系统能够在测量操作期间自动改变数据压缩率。 可变数据压缩功能有助于以更快和/或恒定的记录速度可靠地收集测量数据。 数据压缩方法和系统可以应用于与地下地层相关的任何测量操作，包括但不限于：声学有线测井测量，钻井前测井，电磁测量，核磁共振测量和电阻率测量。

公开(公告)号：US07107153B2

公开(公告)日：2006-09-12

申请号：US10848806

申请日：2004-05-19

申请人： Saad Kisra ,  Henri-Pierre Valero

发明人： Saad Kisra ,  Henri-Pierre Valero

IPC分类号： G01V1/22 ,  G01V3/34

CPC分类号： G01V11/002 ,  G01V3/34 ,  G01V2210/6163

摘要： The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and/or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.

摘要翻译： 本发明涉及用于进行与地下地层相关的测量的方法和系统。 方法和系统有效地压缩数据，从而促进更有效的数据传输。 方法和系统能够在测量操作期间自动改变数据压缩率。 可变数据压缩功能有助于以更快和/或恒定的记录速度可靠地收集测量数据。 数据压缩方法和系统可以应用于与地下地层相关的任何测量操作，包括但不限于：声学有线测井测量，钻井前测井，电磁测量，核磁共振测量和电阻率测量。

公开(公告)号：US20090070042A1

公开(公告)日：2009-03-12

申请号：US12199243

申请日：2008-08-27

申请人： Richard Birchwood ,  Saad Kisra

发明人： Richard Birchwood ,  Saad Kisra

IPC分类号： G01V1/40

CPC分类号： G01V1/50

摘要： A computer-implemented method of estimating mechanical properties and stresses of rocks around a borehole. In situ stresses and dynamic and static moduli of a rock are jointly inferred from acoustic radial profiles measured with a borehole sonic tool. Inversion is performed on equations that govern the near-borehole distributions of the compressional wave slowness, the fast shear wave slowness, the slow shear wave slowness, and the shear wave modulus in the plane perpendicular to the borehole axis for in situ stresses, the dynamic shear modulus, the dynamic Lamé parameter, λ, the static drained Young's modulus, and the static drained Poisson's ratio. Third-order nonlinear dynamic moduli are also inferred by the procedure. Material properties are retrieved in an isotropically stressed reference state. The input data used by the inversion is appropriately prescribed. Methods for constraining the solution in the event of noisy or limited data are demonstrated.

摘要翻译： 一种计算机实现的估计钻孔周围岩石力学性能和应力的方法。 岩石的原位应力和动态和静态模量由用钻孔声波工具测量的声学径向轮廓共同推断。 对于控制原位应力垂直于井眼轴的平面中的压缩波慢度，快速剪切波慢度，慢剪切波慢度和剪切波模量的近似孔分布的方程式进行反演，动态 剪切模量，动态Lamé参数，λ，静态排水杨氏模量和静态排水泊松比。 三阶非线性动态模量也由程序推断。 在各向同性应力的参考状态下检索材料性质。 适当规定反转使用的输入数据。 证明了在发生嘈杂或有限的数据的情况下限制解决方案的方法。