公开(公告)号：US20130292124A1

公开(公告)日：2013-11-07

申请号：US13979922

申请日：2012-01-18

申请人： Andrew P. Bunger ,  Robert G. Jeffrey ,  Xi Zhang ,  James Kear

发明人： Andrew P. Bunger ,  Robert G. Jeffrey ,  Xi Zhang ,  James Kear

IPC分类号： E21B41/00 ,  E21B43/26

CPC分类号： E21B41/0092 ,  E21B43/26

摘要： Method and apparatus for forecasting curving of an hydraulic fracture to be initiated in the vicinity of one or more previously placed fractures along a bore hole. Physical parameters that will affect the growth of the hydraulic fracture are received by a dimensionless parameter deriver which derives a series of dimensionless parameters as groupings of the physical parameters that are selected as similarity parameters with respect to the shape of the hydraulic fracture path. The dimensionless parameters may comprise a dimensionless viscosity parameter, a dimensionless confining stress parameter, a coefficient of friction parameter and a dimensionless deviatoric stress parameter. A comparator sequentially compares the determined dimensionless parameters with predetermined threshold values to provide an indication as to possible curving of the hydraulic fracture.

摘要翻译： 用于预测在沿着钻孔的一个或多个先前放置的裂缝附近开始的水硬性裂缝弯曲的方法和装置。 将影响水力裂缝生长的物理参数由无量纲参数提取器接收，该参数提取器将一系列无量纲参数作为相对于水力断裂路径形状选择为相似参数的物理参数的分组。 无量纲参数可以包括无量纲粘度参数，无量纲约束应力参数，摩擦系数参数和无量纲偏应力参数。 比较器顺序地将所确定的无量纲参数与预定阈值进行比较，以提供关于可能弯曲水力压裂的指示。

公开(公告)号：US09222337B2

公开(公告)日：2015-12-29

申请号：US13979922

申请日：2012-01-18

申请人： Andrew P. Bunger ,  Robert G. Jeffrey ,  Xi Zhang ,  James Kear

发明人： Andrew P. Bunger ,  Robert G. Jeffrey ,  Xi Zhang ,  James Kear

IPC分类号： E21B43/26 ,  E21B41/00

CPC分类号： E21B41/0092 ,  E21B43/26

摘要： Method and apparatus for forecasting curving of an hydraulic fracture to be initiated in the vicinity of one or more previously placed fractures along a bore hole. Physical parameters that will affect the growth of the hydraulic fracture are received by a dimensionless parameter deriver which derives a series of dimensionless parameters as groupings of the physical parameters that are selected as similarity parameters with respect to the shape of the hydraulic fracture path. The dimensionless parameters may comprise a dimensionless viscosity parameter, a dimensionless confining stress parameter, a coefficient of friction parameter and a dimensionless deviatoric stress parameter. A comparator sequentially compares the determined dimensionless parameters with predetermined threshold values to provide an indication as to possible curving of the hydraulic fracture.

摘要翻译： 用于预测在沿着钻孔的一个或多个先前放置的裂缝附近开始的水硬性裂缝弯曲的方法和装置。 将影响水力裂缝生长的物理参数由无量纲参数提取器接收，该参数提取器将一系列无量纲参数作为相对于水力断裂路径形状选择为相似参数的物理参数的分组。 无量纲参数可以包括无量纲粘度参数，无量纲约束应力参数，摩擦系数参数和无量纲偏应力参数。 比较器顺序地将所确定的无量纲参数与预定阈值进行比较，以提供关于可能弯曲水力压裂的指示。