公开(公告)号：US4866607A

公开(公告)日：1989-09-12

申请号：US731230

申请日：1985-05-06

申请人： Terry O. Anderson ,  J. M. Richardson ,  Jack C. Penn ,  Michael J. Lynch ,  Billy W. White ,  Gilbert H. Forehand ,  Richard L. Duncan ,  Charles F. VanBerg, Jr. ,  Stephen E. Tilghman ,  Ronald E. Dant ,  Charles D. Donaghe

发明人： Terry O. Anderson ,  J. M. Richardson ,  Jack C. Penn ,  Michael J. Lynch ,  Billy W. White ,  Gilbert H. Forehand ,  Richard L. Duncan ,  Charles F. VanBerg, Jr. ,  Stephen E. Tilghman ,  Ronald E. Dant ,  Charles D. Donaghe

IPC分类号： E21B47/00 ,  E21B47/12 ,  G01D9/32 ,  G01L9/08 ,  G01V1/24 ,  G01V1/40 ,  G06F17/00

CPC分类号： E21B47/124 ,  E21B47/00 ,  E21B47/12

摘要： In an oil well instrumentation system, the downhole sensor system is controlled by a computer which is powered-on only during sampling movement. An independent circuit, continuously powered, detects significant sensor rate-of-change values whereby the computer-sampling equipment is powered-on. A self-contained memory gauge includes either semiconductor or magnetic core memory for retaining downhole information related to sampled parameters, such as borehole temperature and pressure. A microprocessor-based computer manages the power utilization by independently and selectably energizing and deenergizing different sections of the gauge. The magnetic core memory is tested for operability, and the addressing of the magnetic core memory is adjusted in accordance with any inoperable memory locations. Samples of the monitored environmental conditions can be taken at variable rates dependent upon software monitoring of the condition, the remaining battery life and the remaining memory capacity and in response to hardware monitored pressure changes. Each sample can be taken to a selectable resolution. A watchdog circuit monitors the microprocessor to insure that it is operating within a preselected time limit.

摘要翻译： 在油井仪表系统中，井下传感器系统由仅在取样运动期间通电的计算机控制。 连续供电的独立电路检测显着的传感器变化率值，从而计算机采样设备通电。 独立的记忆仪包括半导体或磁芯存储器，用于保存与采样参数相关的井下信息，例如井眼温度和压力。 基于微处理器的计算机通过独立地选择性地激励和去激励量规的不同部分来管理功率利用。 测试磁芯存储器的可操作性，并且根据任何不可操作的存储器位置来调整磁芯存储器的寻址。 监测的环境条件的样本可以取决于条件的软件监视，剩余电池寿命和剩余存储容量以及响应硬件监视的压力变化的可变速率。 每个样品可以采取可选择的分辨率。 看门狗电路监视微处理器，以确保它在预选的时间限制内运行。