公开(公告)号：US08347958B2

公开(公告)日：2013-01-08

申请号：US13528608

申请日：2012-06-20

申请人： Arthur H. Hartog ,  J. Ernest Brown ,  John Cook ,  Jonathan James Elphick ,  Paul Simon Hammond ,  Ashley Bernard Johnson

发明人： Arthur H. Hartog ,  J. Ernest Brown ,  John Cook ,  Jonathan James Elphick ,  Paul Simon Hammond ,  Ashley Bernard Johnson

IPC分类号： E21B47/00

CPC分类号： G01V8/02 ,  E21B41/0064 ,  E21B43/26 ,  E21B47/06 ,  E21B47/123 ,  G01V1/226 ,  G01V8/16 ,  Y02C10/14

摘要： Acoustic monitoring is carried out using a fiber optic cable. Coherent Rayleigh noise generated by the transmission of a coherent beam of radiation through the fiber optic cable is detected, a phase of the coherent Rayleigh noise is measured and the measured phase is processed to identify an acoustic occurrence along the fiber optic cable. In certain aspects, an optical fiber serves as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. The distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fiber optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, or production logging.

摘要翻译： 使用光纤电缆进行声学监测。 检测到通过光纤电缆传输相干的辐射束产生的相干瑞利噪声，测量相干瑞利噪声的相位，并且处理测量的相位以识别沿着光纤电缆的声音发生。 在某些方面，光纤用作分布式干涉仪，其可用于监测导管，井筒或储层。 分布式干涉测量提供对沿着光纤电缆的声学发生的精确检测，并且这些声学发生可以包括在管道或井眼中的流体流动，在井眼或管道中发生的过程，压裂，砾石填充或生产测井。