| 摘要 |
A method of installing a pressure transducer in a borehole to measure the fluid prepare of a geological formation The pressure transducer is installed into the borehole at a desired, depth, and then the borehole is filled with a cement grout. The fluid connection between the pressure transducer and the formation is opened by pumping a fluid through tubing to displace the cement grout. A process of hydrofracture can be employed to provide a communication path of fluid between the formation, and the pressure transducer surrounded by the fractured grout. In one embodiment of the invention, a pressure transducer is cemented into the borehole along with a check and pressure relief valve. In another embodiment the pressure transducer is installed in the tubing at a subsequent stage. |
