| 摘要 |
A Wellbore stress meter system and method for determining wellbore formation instability, comprising a first load cell (10), a first pressure sensor (20) with a pressure output signal (20s), a wireless communication system (100), a cable (8), and a surface device (70), said first load cell (10) comprises; - a second pressure sensor (11) with a stress output signal (11s), - a cell element (12) comprising a fluid (12f), - a first interface element (13) in a first end (10a) of said first load cell (10) with fluidly separated first and second surfaces (13a, 13b,) wherein said first surface (13a) is in fluid communication with said fluid (12f), and said first interface element (13) moves relative said cell element (12) as a function of a force (F1) applied on said first surface (13a), and compresses said fluid (12f) acting on said second pressure sensor (11). |
