【作者】 张鹏；

【导师】 邢光龙； 郑峥；

【作者基本信息】 燕山大学 ， 通信工程（含宽带网络、移动通信等）（专业学位）， 2023， 硕士

【摘要】 三维感应测井作为传统地层倾角测井技术的补充,在地层倾角提取问题中具有重要应用。该文在三维感应测井资料处理基础上,结合连斜测井资料构建地层倾角提取方法,建立了一种新型的三维感应地层倾角测量方法。首先,依据地层层面空间分布的描述,明确地层倾角测井测量的倾角、方位角以及自旋角;依据三维感应测井仪和测斜仪组合可得到感应仪器与测斜仪的坐标变换关系;根据连斜测井资料得到测斜仪与地理坐标系的转换关系;根据三维感应测井资料处理得到仪器坐标系与地层坐标系的变换关系,由地层坐标系、地理坐标系、仪器坐标系和测斜仪坐标系的关系,建立地层坐标系和地理坐标系之间的变换,进而通过地层坐标系和地理坐标系的坐标变换矩阵反求欧拉角,确定地层倾角和方位角,由此阐明了三维感应地层倾角测井测量原理,进而分步概述了三维感应地层倾角测井资料处理流程。其次,基于单轴各向异性电阻率模型,通过三维感应测井9个分量提取对应地层电阻率单轴各向异性介质模型的电阻率参数和仪器方向角参数,对三维感应仪器倾角响应特征进行了分析,进而提出了三维感应仪器倾角提取视值转换流程,建立了均匀单轴各向异性地层模型中仪器倾角提取视值方法。最后,基于平面分层地层模型,建立交叉分量的组合响应曲线,分析层边界处三维感应仪器测井响应特征,提出了边界处倾角提取的图版法,建立了基于高斯牛顿算法的层边界面倾角提取二层模型反演方法。更多还原

【Abstract】 As a supplement to the traditional formation inclination logging technology,3D induction logging can be developed into an effective formation inclination logging method.On the basis of 3D induction logging data processing and combining with continuous dip logging data,a new 3D induction dip measurement method is established in this paper.Firstly,the dip Angle,azimuth Angle and spin Angle measured by dip log are defined according to the description of the spatial distribution of formation layer.Based on the combination of three dimensional induction logging instrument and inclinometer the coordinate transformation relationship between the induction instrument and the inclinometer can be obtained.The conversion relationship between the inclinometer and the geographic coordinate system is obtained according to the data of continuous inclinometer logging.According to the three-dimensional induction logging data processing,the transformation relationship between the instrument coordinate system and the stratigraphic coordinate system is obtained.Based on the relationship between the stratigraphic coordinate system,the geographic coordinate system,the instrument coordinate system and the clinometer coordinate system,the transformation between the stratigraphic coordinate system and the geographic coordinate system is established.Then,the Euler Angle is obtained through the coordinate transformation matrix of the stratigraphic coordinate system and the geographic coordinate system,and the formation dip Angle and azimuth Angle are determined.The principle of 3D induction dip logging is explained and the processing flow of 3D induction dip logging data is summarized step by step.Secondly,based on the uniaxial anisotropic resistivity model,the resistivity parameters and instrument direction Angle parameters of the corresponding uniaxial anisotropic medium model of formation resistivity were extracted by 9 components of three-dimensional induction logging,and the inclination response characteristics of three-dimensional induction instrument were analyzed.Then,the apparent value conversion process of three-dimensional induction instrument inclination extraction was proposed.A method for extracting apparent value of instrument dip Angle in uniform uniaxial anisotropic formation model is established.Finally,based on the plane stratification stratigraphic model,the cross-component combination response curve is established,and the response characteristics of 3D induction instrument logging at the boundary are analyzed.The graph method of dip Angle extraction at the boundary is proposed,and the inversion method of the two-layer model of dip Angle extraction at the boundary surface based on Gauss Newton algorithm is established.更多还原