公开(公告)号：US06353799B1

公开(公告)日：2002-03-05

申请号：US09511618

申请日：2000-02-23

申请人： Nigel Charles Meany ,  David Alexander Curry ,  Leroy William Ledgerwood, III ,  Craig Hodges Cooley

发明人： Nigel Charles Meany ,  David Alexander Curry ,  Leroy William Ledgerwood, III ,  Craig Hodges Cooley

IPC分类号： G06F1900

CPC分类号： E21B44/00 ,  E21B49/003 ,  E21B2041/0028

摘要： A method and apparatus are provided for generating an indicator of potential for abrupt changes in rock strength in a particular wellbore. Forensic wellbore data is obtained from at least one previously drilled wellbore which is determined to be comparable to the target wellbore. An interfacial severity computer program is provided. The program consists of executable program instructions. It is adapted to utilize a plurality of wellbore parameters, including at least one forensic wellbore data element. The interfacial severity computer program is loaded onto a data processing system. At least the forensic wellbore data, and possibly other wellbore parameter data elements, are supplied as an input to the interfacial severity computer program. The data processing system is utilized to execute program instructions of the interfacial severity computer program. This applies the inputs to the interfacial severity computer program which produces an output and indicator of the potential for abrupt changes in rock strength in the particular target wellbore.

摘要翻译： 提供了一种方法和装置，用于产生在特定井眼中岩石强度突然变化的潜在指标。 从至少一个先前钻孔的井筒获得法证井井眼数据，其被确定为与目标井筒相当。 提供界面严重性计算机程序。 该程序由可执行程序指令组成。 其适于利用多个井筒参数，包括至少一个法庭井筒数据元素。 界面强度计算机程序被加载到数据处理系统上。 至少将法医井眼数据以及可能的其他井眼参数数据元素作为输入提供给界面严重性计算机程序。 数据处理系统用于执行界面严重性计算机程序的程序指令。 这将输入应用于界面严重性计算机程序，其产生在特定目标井筒中的岩石强度的突然变化的潜力的输出和指标。