Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7986588 | Method for selective bandlimited data acquisition in subsurface formations The method for exploring desired characteristics of a subsurface sector, having at least one resonant frequency, is based on selectively transmitting suitable narrowband energy waves into the subsurface sector, thereby producing narrowband signals reflected off the ... | 07/26/2011 |
| 7599251 | Method for selective bandlimited data acquisition in subsurface formations The method for exploring desired characteristics of a subsurface sector, having at least one resonant frequency, is based on selectively transmitting suitable narrowband energy waves into the subsurface sector, thereby producing narrowband signals reflected off the ... | 10/06/2009 |
| 7515505 | Method for continuous sweeping and separation of multiple seismic vibrators A method for simultaneously operating multiple seismic vibrators using continuous sweeps (little or no “listening” time between sweeps) for each vibrator, and recovering the separated seismic responses for each vibrator with the earth signature removed. Each vib... | 04/07/2009 |
| 7388811 | Method for separating microseismic signals from seismic signals emitted by one or several sources This invention is a method of separating induced microseismicity signals from seismic signals acquired within active seismic monitoring operations carried out in underground zones under development which has application for monitoring of underground hydrocarbon or f... | 06/17/2008 |
| 7366054 | Tau-P filters for removal of noise from seismic data Methods of processing seismic data to remove unwanted noise from meaningful reflection signals are provided for. The methods comprise the steps of assembling seismic data into common geometry gathers in an offset-time domain without correcting the data for normal mo... | 04/29/2008 |
| 7357030 | Apparatus and methods for determining at least one characteristic of a proximate environment Methods and an apparatus for determining at least one characteristic of an environment are disclosed. A vibrational energy may be imparted into an environment and a magnitude of damping of the vibrational energy may be measured and at least one characteristic of the... | 04/15/2008 |
| 7310580 | Method for borehole measurement of formation properties The present invention is a method of estimating formation properties by analyzing acoustic waves that are emitted from and received by a bottom hole assembly. A bottom hole assembly may be deployed in a borehole to estimate formation properties. From the bottom hole... | 12/18/2007 |
| 7243029 | Systems and methods of hydrocarbon detection using wavelet energy absorption analysis Disclosed herein are systems and methods of hydrocarbon detection based on wavelet energy absorption analysis. One disclosed hydrocarbon detection method embodiment includes: a) obtaining seismic trace data for a region of interest; and b) processing the seismic tra... | 07/10/2007 |
| 7050356 | Method of seismic surveying A method of seismic surveying comprising the steps of actuating the or each vibrator in a first vibrator group at time T0, and subsequently actuating the or each vibrator in a second vibrator group at time T1 that satisfies T0 | 05/23/2006 |
| 6996028 | Velocity analysis on seismic data A number of seismic stacks are precomputed (20) for known velocity fields. The velocity fields are chosen to span the range of velocities of interest. The stacks are then arranged (21) in the 3D memory of a graphics computer (10–14) using time... | 02/07/2006 |
| 6982927 | Method for processing seismic data to identify anomalous absorption zones A method is disclosed for identifying zones anomalously absorptive of seismic energy. The method includes jointly time-frequency decomposing seismic traces, low frequency bandpass filtering the decomposed traces to determine a general trend of mean frequency and ban... | 01/03/2006 |
| 6952379 | Seismic method and apparatus for generating a semblance panel and computing the reflector dip A method of generating a semblance panel comprises summing two or more gathers of traces. The dip of the reflector is taken into account in the summation process, and this prevents semblance peaks from becoming smeared during the summation process and so allows a gr... | 10/04/2005 |
| 6947873 | Method and apparatus for generating measurement data In a system for observing the ground based on various data items measured at one or more observation points by at least one measuring instrument, the measured data items are collected in a collection center, it is determined whether at least one of the measured data... | 09/20/2005 |
| 6942059 | Composite bandwidth marine vibroseis array The present invention provides marine vibroseis methods and apparatus that operate in an acquisition time frame significantly shorter than current marine vibroseis acquisition methods and comparable to marine airgun seismic source acquisition, while providing data s... | 09/13/2005 |
| 6937938 | Method and apparatus for interferometry, spectral analysis, and three-dimensional holographic imaging of hydrocarbon accumulations and buried objects A methods and apparatus for the detection and exploration of buried objects and hydrocarbons uses two separate signals having different frequency characteristics combined to enable interferometric analysis and imaging systems including radar, sonar, seismological, a... | 08/30/2005 |
| 6907349 | Acoustic signal processing method using array coherency A system and method is provided for characterizing earth formations. In one embodiment, the method includes passing a logging tool through a borehole and repeatedly: (a) triggering an acoustic wave generator; (b) recording acoustic waveforms received by receivers in... | 06/14/2005 |
| 6891776 | Vibrator sweep shaping method This invention relates to improved methods to generate shaped sweeps, and for the acquisition of vibroseis data with a shaped pilot sweep. ... | 05/10/2005 |
| 6757216 | Method for post processing compensation of amplitude for misaligned and misstacked offset seismic data A method for assessing the suitability of seismic data for quantitative amplitude analysis, where the concern is excessive residual normal moveout (RNMO). The invention uses a near offset stack and a far offset stack, the time difference between the two, a mute patt... | 06/29/2004 |
| 6636816 | Vector signal analysis method and apparatus therefor An error-suppression signal measurement system and method therefor is provided. The system transmits a test signal from a first probe, through a device under test, and into a second probe. The probes extract normalization signals from reference signals th... | 10/21/2003 |
| 6603707 | Method of reducing harmonic noise in vibroseis operations The invention relates to a vibroseis analysis method in which frequency-sweep signals (10) are emitted into a subsurface, the signals reflected on the substrata of such a subsurface (10, 20) are logged and the logged signals are processed, a method in whi... | 08/05/2003 |
| 6553316 | Method and system for synchronizing elements of a seismic device using a standard transmission network and an external time reference A method and system for transferring synchronization data between a central control and seismic recording station and dependent stations in all the cases where the time of transmission through the connection channels between the elements may be liable to ... | 04/22/2003 |
| 6460024 | Data-domain sampled network An apparatus (10) may implement a method (160) for creating (162) a data-domain sampled network (206). In certain embodiments, a method in accordance with the invention may define (166) a data domain, provide (172) points in a data-domain space or sub-spa... | 10/01/2002 |
| 6061299 | Method of transmitting compressed seismic data The invention relates to a two-phase method of transmitting, to a central station (CS), seismic signals received by seismic receivers (R) and picked up by collecting units (A) disposed in the field. In the first phase, a compression is applied to each sei... | 05/09/2000 |
| 6052333 | Method for seismic antenna illumination of subterranean feature for display and evaluation Monofrequency continuous wave signals of long duration are used as inputs form sources of known characteristics and location. These signals are reflected off subterranean features and serve to paint the features for display and evaluation. A primary featu... | 04/18/2000 |
| 6049509 | Method of processing seismic data to obtain the travel time curve A plurality of seismic traces are arranged in order of increasing of feet and features therein are analyzed so as to identify corresponding features in each of the curves. The travel time to each of the features is derived in order to extract an actual tr... | 04/11/2000 |
| 6028820 | Method for determining the presence of fluids in a subterranean formation A method for seismic data interpretation for the purposes of identification of oil, gas and water accumulation locations and delineation of their contours uses a model of discrete media with inhomogeneous stresses. For a selected reflection horizon, the r... | 02/22/2000 |
| 6018500 | Radon moveout A conventional CMP gather is Radon transformed from t-x space to the ͌-p domain. The Radon-transformed data are windowed or zoned into a plurality of data sets, each having an common independent range of selected characteristics. All except one data set ... | 01/25/2000 |
| 6002641 | Apparatus and method for planting seismic sensors An apparatus and method are provided for ensuring good coupling and vertically planting of seismic receivers while substantially reducing the need for interconnecting wires and costly surveys. The apparatus includes an acquisition unit (AU) 20 for measuri... | 12/14/1999 |
| 5999485 | Method of distinguishing geological sequences and their boundaries A method for identifying the boundaries between sequences of rocks laid down in different depositional regimes. The approach used is to search, in well logs or seismic data, for a statistic characteristic of such regimes, and for breaks in that statistic.... | 12/07/1999 |
| 5970023 | Reducing aliasing artifacts in seismic data processing using sharpened (TAU-P-Q) transforms Marine seismic data sets are generally under-sampled spatially because of the relatively long listening times required in deep water. It is customary to use very long spreads in the field thereby enhancing aliasing and interference from coherent noise. A ... | 10/19/1999 |
| 5901113 | Inverse vertical seismic profiling using a measurement while drilling tool as a seismic source A reverse VSP system is provided and uses a frequency-controllable modulator of an MWD tool as a downhole seismic source. The modulator has a rotor and stator arranged to provide substantially sinusoidal outputs, and is controlled to provide a "Vibroseis"... | 05/04/1999 |
| 5886255 | Method and apparatus for monitoring mineral production Long-term changes in the distribution of a mineral in a subsurface deposit, due to commercial production of the mineral, are monitored by suitable instrumentation. The monitoring instrumentation is installed in combination with commercial mineral producti... | 03/23/1999 |
| 5781503 | Method for attenuating surface wavetrains in seismic data A method for attenuating source-generated surface wavetrains in a set of seismic data traces. According to the method, the seismic data traces are Fourier transformed with respect to time to determine the frequency components of the surface wavetrain. A p... | 07/14/1998 |
| 5774416 | Method and device for attenuating water column reverberations using co-located hydrophones and geophones in ocean bottom seismic processing In ocean bottom seismic exploration, it is common for co-located hydrophones and geophones to be deployed on the ocean bottom. One problem encountered is the water column reverberation. An improved method and device is proposed for attenuating water colum... | 06/30/1998 |
| 5703833 | One step inversion/separation scheme using a plurality of vibrator sources A method for generating, recording and pre-processing high fidelity vibratory seismic data in a system that uses a plurality of vibratory sources includes the steps of measuring the motion of each of the vibrators, determining a ratio by dividing the vibr... | 12/30/1997 |
| 5583826 | Method of processing signals for geophysical prospecting, the method making use of an improved wave field extrapolation operator The present invention relates to a method of extrapolating a set of traces recorded by means of an array of sensors, in the context of a geophysical prospecting process, the method comprising the steps consisting in: i) approximating a minus Laplacian L | 12/10/1996 |
| 5555218 | Computation of Q-derived static corrections from seismic data The amplitude spectrum is generated within a selected time window of a seismic time scale recording. The rate of change, Q, of the natural logarithm of the signal amplitude is measured with respect to frequency. A Q-derived static time shift is computed a... | 09/10/1996 |
| 5550788 | Method and system of analysis of the behavior of a drill string The present invention relates to a method and to a system for analyzing drilling conditions and/or the behaviour of a drill string element. It comprises the stages as follows: acquisition of a signal, calculation means are operated, which determine the wavelet... | 08/27/1996 |
| 5545858 | Method for processing and interpreting wide band FM seismic signals A method for determining a unique signal representing the earth's response between a transmitter and receivers when conducting a seismic survey involves the steps of receiving a seismic signal set that comprises a plurality of different output frequency s... | 08/13/1996 |
| 5521882 | Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies Apparatus and methods for determining an indication of a nonlinear property of a formation traversed by a borehole are provided. An acoustic tool is used in a borehole to generate first and second signals of different frequencies. As a result of nonlinear... | 05/28/1996 |
