SYSTEM AND METHOD FOR MEASUREMENT INCORPORATING A CRYSTAL OSCILLATOR
摘要
A system, method and device for interrogating a downhole environment in a borehole beneath a surface includes a source of electromagnetic energy, operable to transmit an electromagnetic signal in the borehole, a sensor module, including a passive resonating circuit including a crystal oscillator having a resonant frequency that varies with changes in the condition in the downhole environment to reflect the electromagnetic signal and to modulate the electromagnetic signal in response to a condition in the downhole environment in the borehole and a detector positionable to receive the reflected modulated electromagnetic signal.
申请公布号
EP2507606(A1)
申请公布日期
2012.10.10
申请号
EP20100788170
申请日期
2010.11.19
申请人
CHEVRON U.S.A. INC.;LOS ALAMOS NATIONAL SECURITY LLC
发明人
THOMPSON, M., CLARK;SINHA, DIPEN, N.;COATES, DON, M.;ARCHULETTA, JACOBO, R.;GONZALEZ, MANUEL, E.