公开(公告)号：US20160252643A1

公开(公告)日：2016-09-01

申请号：US15026234

申请日：2014-10-02

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Keli Sun ,  Roger Griffiths ,  Steve Crary ,  Christopher Morriss ,  Koji Ito

IPC: G01V3/28

CPC classification number: G01V3/28 ,  G01V3/30 ,  G01V3/38

Abstract: Embodiments set forth in this disclosure providing techniques for determining formation parameters, such as horizontal resistivity (Rh), vertical resistivity (Rv), and dip, in high angle and horizontal wells using non-directional resistivity measurements. For example, a method is provided that may include using an electromagnetic logging tool to acquire non-directional resistivity measurements in a wellbore of a high angle or horizontal well. The method may also include defining a processing window that corresponds to a measurement point of the electromagnetic logging tool along a well trajectory that intersects a at least one bed boundary between two layers of a subsurface formation. The method may also include defining a formation structure and defining an initial set of formation parameters for each layer in the formation structure. Furthermore, the method may include inverting the formation parameters for each layer.

Abstract translation: 在本公开中提出的实施例提供了使用非方向电阻率测量来确定高角度和水平井中的地层参数（例如水平电阻率（Rh）），垂直电阻率（Rv）和倾角的技术。 例如，提供了一种方法，其可以包括使用电磁测井工具在高角度或水平井的井眼中获取非方向电阻率测量。 该方法还可以包括定义对应于电磁测井工具的测量点的处理窗口沿着与地下地层的两层之间的至少一个床边界相交的井轨迹。 该方法还可以包括限定地层结构并且为地层结构中的每个层定义初始的地层参数集合。 此外，该方法可以包括颠倒每层的地层参数。

公开(公告)号：US09945977B2

公开(公告)日：2018-04-17

申请号：US15026234

申请日：2014-10-02

Applicant: Schlumberger Technology Corporation

Inventor： Keli Sun ,  Roger Griffiths ,  Steve Crary ,  Christopher Morriss ,  Koji Ito

IPC: G01V3/00 ,  G01V3/28 ,  G01V3/30 ,  G01V3/38

CPC classification number: G01V3/28 ,  G01V3/30 ,  G01V3/38

Abstract: Embodiments set forth in this disclosure providing techniques for determining formation parameters, such as horizontal resistivity (Rh), vertical resistivity (Rv), and dip, in high angle and horizontal wells using non-directional resistivity measurements. For example, a method is provided that may include using an electromagnetic logging tool to acquire non-directional resistivity measurements in a wellbore of a high angle or horizontal well. The method may also include defining a processing window that corresponds to a measurement point of the electromagnetic logging tool along a well trajectory that intersects a at least one bed boundary between two layers of a subsurface formation. The method may also include defining a formation structure and defining an initial set of formation parameters for each layer in the formation structure. Furthermore, the method may include inverting the formation parameters for each layer.