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METHOD OF OBTAINING IMPROVED GEOPHYSICAL INFORMATION ABOUT EARTH FORMATIONS

机译：获取有关地球形成的改进的地球物理信息的方法

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摘要

The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at one or more frequencies within a range of frequencies at a plurality of spaced locations. A plurality of substantially serially spaced receivers in the wellbores and/or at surface receive signals reflected by the subsurface formations. The sensors may be permanently installed in the boreholes and could be fiber optic devices. The receiver signals are processed by conventional geophysical processing methods to obtain information about the subsurface formations. This information is utilized to update any prior seismographs to obtain higher resolution seismographs. The improved seismographs are then used to determine the profiles of the production wellbores to be drilled. Borehole seismic imaging may then be used to further improve the seismographs and to plan future wellbores. Cross-well tomography may be utilized to further update the seismographs to manage the reservoirs. The permanently installed sensors may also be used to monitor the progress of fracturing in nearby wells and thereby provide the necessary information for controlling fracturing operations.

机译：本发明提供了一种形成井眼的方法。在一种方法中，部分地基于从地表进行的地震勘测，沿着预定路径钻出一个或多个井眼。在这样的井眼中传送的声发射器在多个间隔的位置处的频率范围内以一个或多个频率发射声信号。井眼中和/或地面上的多个基本上连续间隔的接收器接收由地下地层反射的信号。传感器可以永久地安装在钻孔中，并且可以是光纤设备。接收器信号通过常规地球物理处理方法进行处理，以获得有关地下岩层的信息。该信息用于更新任何现有的地震仪，以获得更高分辨率的地震仪。然后，使用改进的地震仪确定要钻探的生产井眼的轮廓。然后可以使用井眼地震成像来进一步改善地震仪并计划未来的井眼。井间层析成像可以用于进一步更新地震仪以管理储层。永久安装的传感器还可用于监视附近井中的压裂进度，从而提供必要的信息以控制压裂操作。

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公开/公告号NO335379B1

专利类型
公开/公告日2014-12-08

原文格式PDF
申请/专利权人 BAKER HUGHES INCORPORATED;
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申请/专利号NO19990001667
发明设计人 REIMERS NILS;LEGGETT III JAMES V;TUBEL PAULO SERGIO;HARRELL JOHN W;
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申请日1999-04-08
分类号G01V1/42;E21B23/03;E21B33/127;E21B37/06;E21B41;E21B41/02;E21B43/12;E21B43/16;E21B43/20;E21B43/25;E21B43/26;E21B43/38;E21B47;E21B47/01;E21B47/06;E21B47/10;E21B47/12;E21B49;E21B49/08;G01D5/26;G01H9;G01N21/31;G01V1/40;G01V1/46;G01V1/50;G01V1/52;G01V7/08;G01V7/16;
国家 NO
入库时间 2022-08-21 15:13:39

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