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Patent Searching and Data


Matches 101 - 150 out of 499

Document Document Title
WO/2012/001388A3
A method of processing measured potential field data from an airborne or marine potential field survey to determine a set of field mapping parameters for mapping a field, the method comprising: inputting said measured potential field dat...  
WO/2012/160429A1
Device (1 ) for the measurement of deformation of the ground under the Earth surface including: an elongated element (8, 32, 42) which is flexible and it is suitable to be inserted in a hole (7) drilled inside the ground; a plurality of ...  
WO/2012/152858A1
Seafloor movements are monitored by measuring the ambient seawater pressure at a plurality of locations adjacent to the seafloor using asynchronous pressure signals generated by a plurality of pressure sensors mounted at different locati...  
WO/2012/144931A2
A method for the short-term prediction of earthquakes is proposed, said method being based on the disclosure by the author of the periodic expansion and contraction of the Earth from an oscillation amplitude of the Earth's radius of ΔR=...  
WO/2012/145525A2
The present disclosure relates to methods and apparatuses for acquiring multi-component gravity information for an earth formation. More particularly, the present disclosure relates to estimating the movement of fluid in an earth formati...  
WO/2012/135020A2
A method of estimating a parameter of an anomaly in an earth formation includes: disposing a measurement device at at least one measurement location, the measurement device including a frequency standard; estimating a frequency shift of ...  
WO/2012/127210A2
We describe improved techniques for airborne gravity gradiometer surveys. In particular we describe a method and system for performing a gravity gradiometer survey of a surveyed region of terrain, the method comprising: providing an airc...  
WO/2012/122503A2
A method for determining spatial distribution of a property within a volume of subsurface formations includes generating an initial model of spatial distribution of a property of the formations using available data related to the propert...  
WO/2012/109738A1
Systems and methods for determining a bias-corrected value of at least one component of a gravity gradient tensor using a gravity gradiometer and a measurement bias of the gravity gradiometer wherein the measurement bias varies with time...  
WO/2011/107792A3
Primarily (but not exclusively) in the field of natural resources exploration, there is a requirement to measure the absolute value and variation of gravity at a given point and over an area gradient, thereby detecting the presence of su...  
WO/2012/090128A2
The present invention relates to a piloting method of a laser system of an absolute gravimetric measurement device by atomic interferometry particularly suitable for on-site applications and advantageously used in the geophysical field, ...  
WO/2012/090134A2
A device comprising a laser system (13) for generating a plurality of laser bands, such laser bands being each conformant at a frequency equal to an energetic transition between a hyperfine level (Fl, F2) of a fundamental state (52Si/2) ...  
WO/2012/090121A2
Absolute gravimetric measurement device (10) of the type comprising, arranged in downward succession along the vertical direction, a laser system (13), a supporting surface (16) of said laser system (13), an ultra-vacuum system (14), a r...  
WO/2012/027848A1
A method for modeling a subsurface anomalous density zone including the steps of forming a density model, computing a response to the density model, inverting the response to arrive at a geometric model of the anomalous density zone, and...  
WO/2012/021938A1
The present disclosure provides a method of processing and analysing gravity gradient data, the method comprises the step of providing the gravity gradient data for a survey area. The survey area has a ground surface that is profiled by ...  
WO/2011/098821A3
A system for measuring geophysical data from a potential field survey of a surveyed region of the earth to provide a representation of the geology of said surveyed region, the system comprising: a gradiometer for measuring gravity gradie...  
WO/2011/001154A3
Apparatus for the measurement of quasi-static gravity gradients comprising: a flexible ribbon (3) held under tension at both longitudinal ends (5,7); sensing means (20) arranged to detect the transverse displacement of the ribbon from an...  
WO/2012/001388A2
A method of processing measured potential field data from an airborne or marine potential field survey to determine a set of field mapping parameters for mapping a field, the method comprising: inputting said measured potential field dat...  
WO/2011/097169A3
The present disclosure relates to methods and apparatuses for calibrating a sensor, particularly a gravimeter, which involves positioning the sensor in at least three different orientations and calibrating the sensor using a linear model...  
WO/2011/109175A3
A technique facilitates collection and use of data on subterranean formations. The technique comprises obtaining gravity measurements through the use of seismic streamers. At least one streamer is provided such that each streamer has mul...  
WO/2011/097110A8
A system and method for use in a downhole tool having distance measurement, feature detection, and primary measurement devices positioned therein are provided. In one example, the method includes recording a first plurality of features a...  
WO/2011/120087A1
The present disclosure provides a method of detecting a change in gravity gradient using a gravity gradiometer. The gravity gradiometer comprises a detector for detecting the change in gravity gradient. The gravity gradiometer further co...  
WO/2011/098821A2
A system for measuring geophysical data from a potential field survey of a surveyed region of the earth to provide a representation of the geology of said surveyed region, the system comprising: a gradiometer for measuring gravity gradie...  
WO/2011/097169A2
The present disclosure relates to methods and apparatuses for calibrating a sensor, particularly a gravimeter, which involves positioning the sensor in at least three different orientations and calibrating the sensor using a linear model...  
WO/2011/097110A1
A system and method for use in a downhole tool having distance measurement, feature detection, and primary measurement devices positioned therein are provided. In one example, the method includes recording a first plurality of features a...  
WO/2011/086020A1
The invention relates to an interferometric free-fall gravity gradiometer, comprising at least one source of coherent light L and a first retroreflector TM1 able to fall freely in the gradiometer as well as a second retroreflector TM3 ab...  
WO/2010/142765A3
The invention relates to a method for measuring a gravitational field comprising at least two steps. A first step (101) uses at least one measurement antenna to define a table of measurements representing the gravitational field generate...  
WO/2011/032080A3
A technique facilitates the measurements of forces, such as forces that result from gravity and acceleration. The system and methodology utilize a plurality of electrodes that cooperate with a movable electrode. By applying appropriate s...  
WO/2011/004181A3
A method of conducting a potential field survey of a survey surface, the method comprising following a set of paths along an observation surface at an observation height above the surface survey and measuring potential field data at poin...  
WO/2010/061183A3
Apparatus for the measurement of quasi-static gravity gradients comprising: a flexible ribbon held under tension at both ends; sensing means arranged to detect the transverse displacement of the ribbon from an undisturbed position due to...  
WO/2010/132432A3
An apparatus for estimating a property of an earth formation includes: a plurality of sensors configured to estimate at least one property, each of the plurality of sensors located at a known position relative to one another; and a proce...  
WO/2011/032080A2
A technique facilitates the measurements of forces, such as forces that result from gravity and acceleration. The system and methodology utilize a plurality of electrodes that cooperate with a movable electrode. By applying appropriate s...  
WO/2010/132111A3
An instrument for determining the second and/or third-order components of the gravity tensor includes a group of six accelerometers arranged at an equal radius from a spin axis and positioned at 60 degree intervals about the spin axis wi...  
WO/2011/022702A1
A gravimeter is disclosed that comprises a base, a reference device coupled to the base and configured to move along a first axis, a falling device configured to free fall from a first position to a second position on a second axis that ...  
WO/2011/004181A2
A method of conducting a potential field survey of a survey surface, the method comprising following a set of paths along an observation surface at an observation height above the surface survey and measuring potential field data at poin...  
WO/2011/001154A2
Apparatus for the measurement of quasi-static gravity gradients comprising: a flexible ribbon held under tension at both longitudinal ends; sensing means arranged to detect the transverse displacement of the ribbon from an undisturbed po...  
WO/2010/142765A2
The invention relates to a method for measuring a gravitational field comprising at least two steps. A first step (101) uses at least one measurement antenna to define a table of measurements representing the gravitational field generate...  
WO/2010/130967A1
A method of processing geophysical data including at least measured potential field data from a potential field survey of a surveyed region of the earth to provide a representation of the geology of said surveyed region, the method compr...  
WO/2010/132432A2
An apparatus for estimating a property of an earth formation includes: a plurality of sensors configured to estimate at least one property, each of the plurality of sensors located at a known position relative to one another; and a proce...  
WO/2010/132111A2
An instrument for determining the second and/or third-order components of the gravity tensor includes a group of six accelerometers arranged at an equal radius from a spin axis and positioned at 60 degree intervals about the spin axis wi...  
WO/2010/080254A1
A technique facilitates the collection of improved gravitational acceleration measurements and enables use of those measurements in analyzing environmental characteristics of a subterranean region. In one embodiment, a downhole tool is c...  
WO/2010/045738A1
A quadrupole responder for an OQR-type gravity gradiometer comprises a housing, and a mass quadrupole positioned within the housing. The mass quadrupole has a pair of sides, and also has a center of mass between the sides. At least a pai...  
WO/2010/048508A1
A quadrupole responder for an OQR-type gravity gradiometer comprises a housing, and a mass quadrupole positioned within the housing. The mass quadrupole has a pair of sides, and also has a center of mass between the sides. The quadruple ...  
WO/2010/016998A3
A high-resolution digital seismic and gravity sensor includes an inertial mass connected to one or more force-sensitive resonators. The weight of the inertial mass is substantially unloaded with a spring arrangement when exposed to the f...  
WO/2010/034073A1
The present disclosure provides a gravity gradiometer which comprises a component comprising a detector for generating a signal in response to a change in gravity gradient experienced by the gravity gradiometer. The gravity gradiometer a...  
WO/2010/034074A1
The present disclosure provides a gravity gradiometer for detecting a gravity gradient. The gravity gradiometer comprises at least two sensor masses that are pivotable about respective axes and each experience a change in torque in respo...  
WO/2010/034075A1
The present disclosure provides a gravity gradiometer that comprises a detector for detecting a gravity gradient. The detector comprises at least one movable sensing element and that is arranged to generate a signal in response to a chan...  
WO/2009/082550A3
An instrument for measuring gravitational acceleration from within a borehole, the instrument including: a light source having a semiconductor that comprises a bandgap greater than about two electron volts (eV); and a gravimeter for rece...  
WO/2010/016998A2
A high-resolution digital seismic and gravity sensor includes an inertial mass connected to one or more force-sensitive resonators. The weight of the inertial mass is substantially unloaded with a spring arrangement when exposed to the f...  
WO/2009/016348A3
We describe a method of processing geophysical data including at least measured potential field data from a potential field survey of a surveyed region of the earth to provide a three-dimensional representation of the underlying geology ...  

Matches 101 - 150 out of 499