公开(公告)号：US5934373A

公开(公告)日：1999-08-10

申请号：US790292

申请日：1997-01-29

申请人： Norman R. Warpinski ,  Terry D. Steinfort ,  Paul T. Branagan ,  Roy H. Wilmer

发明人： Norman R. Warpinski ,  Terry D. Steinfort ,  Paul T. Branagan ,  Roy H. Wilmer

IPC分类号： E21B43/26 ,  E21B47/02 ,  E21B47/022 ,  G01V1/52 ,  E21B47/00

CPC分类号： E21B43/26 ,  E21B47/02 ,  E21B47/022 ,  G01V1/52

摘要： An apparatus and method for measuring deformation of a rock mass around the vicinity of a fracture, commonly induced by hydraulic fracturing is provided. To this end, a well is drilled offset from the proposed fracture region, if no existing well is present. Once the well is formed to a depth approximately equal or exceeding the depth of the proposed fracture, a plurality of inclinometers, for example tiltmeters, are inserted downhole in the well. The inclinometers are located both above and below the approximate depth of the proposed fracture. The plurality of inclinometers may be arranged on a wireline that may be retrieved from the downhole portion of the well and used again or, alternatively, the inclinometers may be cemented in place. In either event, the inclinometers are used to measure the deformation of the rock around the induced fracture.

摘要翻译： 提供一种用于测量通常由水力压裂引起的断裂附近的岩体变形的装置和方法。 为此，如果没有现有的井存在，则从建议的裂缝区域钻出一个井。 一旦井被形成为大致相等或超过所提出的裂缝的深度的深度，则多个倾斜计例如倾斜仪被插入到井的井下。 倾斜仪位于所提出的裂缝的大致深度之上和之下。 多个倾斜计可以布置在可以从井的井下部分回收并且再次使用的电缆上，或者可以将倾斜计粘合到位。 在任一情况下，倾斜仪用于测量围绕诱发断裂的岩石的变形。