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1. 发明申请

WO2011038170A2 DOWNHOLE OPTICAL IMAGING TOOLS AND METHODS 审中-公开
标题翻译：井下光学成像工具和方法
公开(公告)号：WO2011038170A2
公开(公告)日：2011-03-31
申请号：PCT/US2010050094
申请日：2010-09-24
申请人： HALLIBURTON ENERGY SERV INC , CHEMALI ROLAND E , DIRKSEN RON
发明人： CHEMALI ROLAND E , DIRKSEN RON
IPC分类号： E21B45/00 , E21B47/00 , G06T7/40
CPC分类号： E21B47/0002
摘要： A disclosed downhole optical imaging tool includes a light source and a camera enclosed within a tool body having at least two sidewall windows. A first window transmits light from the light source to a target region in the borehole, while a second window passes reflected light from the target region to the internal camera. The target region is spaced along the borehole away from the second window in a direction opposite the first window. In some embodiments, this configuration is provided by angling the first and second windows with respect to the sidewall, or by shaping the windows to cast and receive light from a "forward" direction. Some tool embodiments include motion and/or orientation sensors that are employed by a processor to combine separately captured images into a panoramic borehole image. It can be employed during drilling operations employing air or a substantially transparent liquid as a drilling fluid.
摘要翻译：公开的井下光学成像工具包括封闭在具有至少两个侧壁窗口的工具主体内的光源和相机。第一窗口将来自光源的光传输到钻孔中的目标区域，而第二窗口将来自目标区域的反射光传递到内部相机。目标区域在与第一窗口相反的方向上沿钻孔远离第二窗口间隔开。在一些实施例中，通过相对于侧壁使第一窗口和第二窗口成角度，或者通过使窗口成形以从“向前”方向投射和接收光来提供该构造。一些工具实施例包括由处理器采用的运动和/或定向传感器，以将单独捕获的图像组合成全景钻孔图像。它可以在使用空气或基本上透明的液体作为钻井液的钻井作业中使用。

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