Abstract: The disclosure presents processes to receive at least one set of ultra-deep resistivity data, and at least one additional set of measurements. The set of measurements can be resistivity data or other sensor measurements, for example, nuclear, magnetic resonance, seismic, acoustic, temperature, or pressure. The set of measurements can be data for which a relationship between the formation values and the formation porosity or fluid saturation exists. For example, acoustic or seismic compressional velocity, shear velocity, density or a ratio thereof such as acoustic impedance, compressional wave (vp)/shear wave (vs) velocity ratio, or other relationships. The processes can identify rock physics forward models to utilize as well as respective constitutive equations. Various inversion algorithms can be applied to the resistivity data and set of measurements to generate an inversion output.

Abstract: Methods and related systems are described relating to processing subsurface sonic and seismic data. The described techniques use anisotropy estimates derived from a walkaway VSP to calibrate elastic properties derived from sonic logs. An empirical relationship between the sonic derived anisotropy parameters is modified until the upscaled elastic properties from the sonic log data best matches the anisotropy parameters measured with the walkway VSP. The result is a set of elastic constants consistent with the walkaway VSP measurements.

Abstract: Methods and systems for acoustically determining reservoir parameters of subterranean formations. A tool comprising a plurality of acoustic sources and configured for acoustic measurements is deployed within a wellhole. Acquired acoustic data are processed and utilized for deriving key parameters for the formations. The plurality of acoustic sources include a plurality of hammer sources, where at least one of the hammer sources includes an actuator that is adapted to strike a surface to generate acoustic energy.

Abstract: Systems and methods are described for determining dielectric permittivity for core plugs extracted from the field or cores re-saturated with various fluids. The relative dielectric constant of reservoir core plugs is measured in controlled condition of temperature, pressure and fluid saturation within a confined cell. Four-points resistivity measurements of the rock sample in the confined cell is also provided under the controlled temperature, pressure and fluid saturation conditions.

Abstract: A method of monitoring acoustic activity in a formation from a wellbore includes positioning a flow manipulation device into the wellbore, the flow manipulation device defining a flow path through which fluid may flow. Fluid is then pumped into the wellbore and through the manipulation device. A sensor disposed near the manipulation device is then coupled to the formation, the formation is fractured with fluid, and acoustic events in the formation are detected with the sensor.

Abstract: Methods and related systems are described for downhole positioning of sensors such as accelerometers, gyroscopes, tiltmeters and geophones. The sensor or sensors are mounted within the spherical rotor of a spherical motor such that the device can be actively positioned in one or more orientations by activating the spherical motor.

Abstract: Methods and related systems are described relating to processing subsurface sonic and seismic data. The described techniques use anisotropy estimates derived from a walkaway VSP to calibrate elastic properties derived from sonic logs. An empirical relationship between the sonic derived anisotropy parameters is modified until the upscaled elastic properties from the sonic log data best matches the anisotropy parameters measured with the walkway VSP. The result is a set of elastic constants consistent with the walkaway VSP measurements.

Abstract: Methods and related systems are described for downhole positioning of sensors such as accelerometers, gyroscopes, tiltmeters and geophones. The sensor or sensors are mounted within the spherical rotor of a spherical motor such that the device can be actively positioned in one or more orientations by activating the spherical motor.

Abstract: Methods and systems for acoustically determining reservoir parameters of subterranean formations. A tool comprising a plurality of acoustic sources and configured for acoustic measurements is deployed within a wellhole. Acquired acoustic data are processed and utilized for deriving key parameters for the formations.

Abstract: A method of monitoring acoustic activity in a formation from a wellbore includes positioning a flow manipulation device into the wellbore, the flow manipulation device defining a flow path through which fluid may flow. Fluid is then pumped into the wellbore and through the manipulation device. A sensor disposed near the manipulation device is then coupled to the formation, the formation is fractured with fluid, and acoustic events in the formation are detected with the sensor.

Abstract: A microseismic method of monitoring fracturing operation or other passive seismic events in hydrocarbon wells is described using the steps of obtaining multi-component signal recordings from locations in the vicinity of a facture; and performing a waveform inversion to determine parameters representing a source characteristics of the event.