发明名称 Drilling speed and depth computation for downhole tools
摘要 A method for managing a drilling operation, including generating, by a first sensor and a second sensor of a bottom hole assembly (BHA), a first time based data log and a second time based data log, respectively, representing a borehole parameter along a drilling trajectory, determining, by a computer processor of the BHA and during the drilling operation, a time shift by comparing the first time based data log and the second time based data log, where offsetting the first and second time based data logs by the time shift maximizes a correlation factor of the first and second time based data logs, and determining, within a pre-determined time period from generating the first and second time based data logs, a drilling speed based on the time shift and a pre-determined distance between the first sensor and the second sensor.
申请公布号 AU2013277646(A1) 申请公布日期 2014.12.18
申请号 AU20130277646 申请日期 2013.05.20
申请人 SCHLUMBERGER TECHNOLOGY B.V. 发明人 SUGIURA, JUNICHI
分类号 E21B44/02;E21B45/00 主分类号 E21B44/02
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