Communications, electrical: acoustic wave systems and devices inventions 02/06

20060039236 - Active sonar simulation: An exemplary embodiment of the invention relates to a method and system for displaying simulated acoustically realistic active sonar signals. The method includes simulating a realistic sounding active sonar signal that originates from a simulated sonar transmitter. The simulated sonar signal is acted upon and modified by simulated ocean effects...

20060039237 - Method of determining petroleum location: The probable location of petroleum deposits is determined by identifying a severe-weather-inducing site from severe weather such as mesocyclones, tornados, funnels aloft, wall clouds or supercells, water spouts, and a high density of multiple lightning ground strikes. Typically the severe-weather-inducing site is located by identifying the initial appearance of the...

20060039238 - Attenuation mapping apparatus, systems, and methods: In some embodiments, an apparatus and a system, as well as a method and an article, may include generating attenuation values associated with a set of multiple signals received by multiple receivers from a transmitted signal as a function of reception time and material velocity. The attenuation values may be...

20060039239 - High-resolution and high-power ultrasound method and device, for submarine exploration: A method for underwater exploration which makes use of a parabolic transmitter (1) and a parabolic receiver (3), the transmitter (1) and the receiver (3) being both open at their lower side and immersed below the seawater surface. The electric breakdown discharge occurring between both electrodes (15) of the transmitter...

20060034150 - Water bottom cable seismic survey cable and system: A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing layer disposed within the outer jacket, which includes at least one electrical conductor disposed therein. An inner...

20060034151 - Library of velocity dependent extended spread-spectrum codes: A method and apparatus is provided for determining a propagation time delay. The apparatus includes at least one source adapted to generate a plurality of positioning signals, at least one receiver deployed along a seismic sensing cable, wherein the receiver is adapted to receive the plurality of positioning signals from...

20060034152 - Tube-wave seismic imaging: The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave (150) is initiated in a source well (110) by a source (111), travels in the source well (110), is coupled...

20060034153 - Method for separting 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 underground hydrocarbon or fluid storage reservoir.—Seismic records are formed from signals emitted by one or more seismic sources controlled by...

20060034154 - Rotary pulser for transmitting information to the surface from a drill string down hole in a well: A rotary pulser for transmitting information to the surface from down hole in a well by generating pressure pulses encoded to contain information. The pressure pulses travel to the surface where they are decoded so as to decipher the information. The pulser includes housing containing a stator forming passages through...

20060034155 - Acoustic/underwater signaling device: The present invention is concerned with an underwater communication device, and more specifically a device that is simple in design, is simple to operate, is powered solely by a simple pull from a swimmers or diver's hand against the resistance of a spring or elastic band, is extremely low maintenance,...

20060028915 - System and method for providing a time varying gain tdr to display abnormalities of a communication cable or the like: In a system and method for testing and displaying the abnormalities, includes opens, shorts, bridged-taps and wet sections, of a copper pair line for xDSL service use, the abnormalities are amplified and normalized so as to be displayed within a predetermined observation range. The normalization steps include piecewise gaining and...

20060028916 - Acoustic telemetry installation in subterranean wells: Acoustic telemetry installation in subterranean wells. In a described embodiment, a method of contacting an assembly with a generally tubular string in a subterranean well includes the steps of: suspending the tubular string in the well, the tubular string extending into a surface structure; and then displacing the assembly through...

20060023567 - Microseismic fracture mapping using seismic source timing measurements for velocity calibration: A system and method for microseismic fracture mapping using seismic source timing measurements for velocity calibration is disclosed. The system may include a seismic source coupled to a wireline and a seismic source trigger, a sensor capable of detecting a first signal from the seismic source trigger, a transmitter coupled...

20060023568 - Streamer cable with enhanced properties: The present invention relates to streamer cables. One embodiment of the present invention relates to a method for preparing a streamer cable. The method may comprise retrofitting the streamer cable with a solid void-filler material, where the streamer cable was configured as a liquid-filled streamer cable. The retrofitting may comprise...

20060023569 - Method and constructing a model of a heterogeneous medium described by several parameters from data expresed in different time scales: A method for constructing a model representative of a heterogeneous medium from data expressed in different time scales with application to hydrocarbon characterization. The method first estimates sequentially, from the data expressed in each different time scale, parameters or physical quantities of the model, described for each different time scale....

20060023570 - Sonar imaging system for mounting to watercraft: A sonar imaging system for a watercraft is disclosed. The sonar imaging system comprises a transducer coupled to the watercraft and having at least one side scanning element and at least one bottom scanning element, an electronic control head unit coupled to the transducer and configured to display sonar images....

20060023571 - Distance measurement method and device: A distance can be measured with high resolution. A frequency controller (7) controls a voltage control oscillator (2) so as to change a signal source frequency f in a range containing two center frequencies f1 and f2 and transmits it as a traveling wave from an antenna (4) to a...