公开(公告)号：WO2012154059A2

公开(公告)日：2012-11-15

申请号：PCT/NO2012050085

申请日：2012-05-09

Applicant: SURF TECHNOLOGY AS ,  ANGELSEN BJOERN A J ,  FJAER ERLING ,  BOE KETIL

Inventor： ANGELSEN BJOERN A J ,  FJAER ERLING ,  BOE KETIL

CPC classification number: G01V1/42 ,  G01V1/362 ,  G01V1/375 ,  G01V2210/161 ,  G01V2210/30

Abstract: Methods and instrumentation for detecting and representing at least one geologic formation in front of an operating drill-bit using the vibration noise generated by the operating drill-bit as a source, comprising at least one receive array comprising more than one receive vibration sensor elements, said at least one receive array are located in one or both of i) at least one receive well, and ii) submerged in water for sub-sea operation, and beam forming at least one receive signal from the signals from said more than one receive elements of said at least one receive array, and forming at least one reference signal representing the vibrations of the operating drill-bit, and correlating said at least one receive signal with said at least one reference signal with different correlation lags, and forming a seismic representation of the at least one geologic formation in front of the drill-bit through said correlating.

Abstract translation: 用于使用由操作钻头作为源产生的振动噪声来检测和表示在操作钻头前面的至少一个地质构造的方法和仪器，包括至少一个包括多于一个接收振动传感器元件的接收阵列， 所述至少一个接收阵列位于i）至少一个接收井中的一个或两个中，并且ii）淹没在用于海底操作的水中，并且来自所述多于一个接收的信号的波束形成至少一个接收信号 所述至少一个接收阵列的元件，以及形成表示所述操作钻头的振动的至少一个参考信号，以及将所述至少一个接收信号与所述至少一个参考信号与不同相关滞后相关联，并形成地震 通过所述相关来表示在钻头前面的至少一个地质构造。