Abstract: A method and apparatus are disclosed for testing the operation of solenoids in a safety system by bypassing the solenoid operated pilot valve and applying a pneumatic control source to the system being tested through a bypass line while demonstrating the operation of the solenoid operated pilot valve for such a system using a test pressure source and a test input through the testing system. The system thereby permits continued operation of the process system while verifying proper operation of the safety system.

Abstract: A method for correction of seismic data for taking into account azimuthal anisotropy in the subsurface is described. The data is corrected using an azimuthally anisotropic normal moveout equation, thereby yielding better signal to noise ratio as well as providing valuable information as to the degree and direction of azimuthal anisotropy in the subsurface.

Abstract: A system and method for matrix stimulation field monitoring providing real time control, optimization and post job evaluation of matrix treatments is disclosed herein. Using calculated or measured bottom hole pressures or coil tubing reflective pressures, the system and method predicts pre-treatment damage or skin from a step rate test, then shows the evolution of skin removal versus treating fluid volume in real time. The method and system provides real time information about diverter use, treatment height, damage radius and other important well parameters.

Abstract: An article of manufacture for providing easy access to electronic key pads and magnetic card readers is provided. The article includes recessed areas for the holding of such key pads and printers at suitable angles to afford easy access and reduces the amount of counter space necessary to utilize such equipment, adjustable to various heights and providing security for entries to the pin pad.

Abstract: A method of forming three dimensional displays (100) from a series of two dimensional sections (102) by interpolation using image algebraic operations or distance measurements on the two dimensional sections to generate interpolation sections (104). The interpolating region between two regions in successive sections is generated automatically. Multiple interpolation regions connecting the original two regions may be included.

Abstract: A method for locating leak from a tank containing a fluid using acoustic signals by adaptively correlating the phase of the acoustic signals to determine a first set of possible leak locations and subsequently correlating acoustic signals from a second set of locations on the tank to determine a second set of possible leak locations and converging the first and second set of possible leak locations to determine the location of the leak.

Abstract: Seismic data is combined with well log data to generate a two-dimensional geopressure prediction display; this permits deviated and horizontal well planning plus lithology detection. Shale fraction analysis, compaction trend, and seismic velocity may be automatically or interactively generated on a computer work station with graphics displays to avoid anomalous results. Corrections to velocity predictions by check shots or VSP, and translation of trend curves for laterally offset areas increases accuracy of the geopressure predictions. Multiple wells' logs in a basin permits analysis fluid migrations.

Abstract: A method and apparatus for remote detection of an oil slick at or near the surface of the water using a combination of two or more ultraviolet lasers and comparing the relative magnitude of the received Raman backscattering signal magnitudes to determine the existence of the oil slick. The use of two different laser frequencies provides for elimination of atmospheric transmission variations and wave modulation.

Abstract: An article of manufacture for providing easy access to electronic key pads and magnetic card readers is provided. The article includes recessed areas for the holding of such key pads and printers at suitable angles to afford easy access and reduces the amount of counter space necessary to utilize such equipment.

Abstract: An article of manufacturer for providing easy access to electronic pin pads and magnetic card readers is provided. The article includes recessed areas for the holding of such key pads and pin pads at suitable angles to afford easy access and reduces the amount of counter space necessary to utilize such equipment.

Abstract: A system is provided for communicating high bandwidth data from a remotely operated semi-submersible vehicle to a mothership surface vessel. The data transmitted from the remotely operated vehicle is blocked and coded to improve the accuracy of the transmission. The remotely operated vehicle contains a large buffer for temporarily storing hydrophone data until it has been transmitted and acknowledged by the mothership. Each transmitted block is acknowledged by the mothership when it has been correctly received. Incorrect or missing acknowledgment signals indicate that some type of interference or outage has occurred in the communications channel. In such an event, the remotely operated vehicle can continually resend the recently transmitted data until receipt of correct acknowledgment signals indicates that the communications channel has been restored.

Abstract: A method and an apparatus for recording the depth of a well logging apparatus is provided. The method and apparatus include the direct acquisition of broad depth information from the logging system conversion of the broad depth information to an acceptable digital signal and recording that signal on the audio track of a video cassette recorder. A microcontroller is used to convert broad depth information from either the logging system or the video cassette recorder (in the playback mode) to actual depth and depth rate for use by other displays and plotters.

Abstract: A portable device for accurately measuring acoustic velocities in solids. This portable hand-held device (100) uses dual receiving transducer tips (110, 112) to allow differential measurement of acoustic velocity in a solid. A body having a handle uses a transmitting transducer tip (108) to transmit acoustic energy to a solid. The first receiving transducer tip (110) is used in conjunction with a second receiving transducer tip (112) mounted on the body a fixed distance from the first (110). The device (100) uses the differences in the time of arrival of the wavefront at the first and second transducers to calculate the acoustic velocity in a given solid. This differential measurement method reduces acoustic velocity measurement inaccuracies.

Abstract: A method and an apparatus for recording the depth of a well logging apparatus is provided. The method and apparatus include the direct acquisition of broad depth information from the logging system conversion of the broad depth information to an acceptable digital signal and recording that signal on the audio track of a video cassette recorder. A microcontroller is used to convert broad depth information from either the logging system or the video cassette recorder (in the playback mode) to actual depth and depth rate for use by other displays and plotters.

Abstract: A processing apparatus and method for depositing a silicon oxide layer on a temperature sensitive wafer utilizing a single process chamber provide nitrous oxide gas to the chamber with the excitation energy being provided by a remotely generated plasma while supplying silane gas in combination with illuminating the wafer with an in situ generated ultraviolet energy to produce the silicon oxide layer.

Abstract: A silicon semiconductor wafer (26) is placed in a vacuum chamber (12) device side (28) facedown. Laser beams of equal power are directed at an edge point (72) and a center point (74) of the wafer (26). The laser beams are reflected from the edge point (72) and the center point (74) into first and second infrared photo-detectors (40-42). A differential amplifier (44) evaluates the reflected laser beams for a power difference and signals a current source (82). Current source (82) heats a quartz ring (46) which surrounds the wafer (26). The quartz ring (46) passes the heat to the wafer (26) until the amplifier (44) no longer senses a power difference, which is indicative of an equal wafer surface temperature.

Abstract: An integrated circuit lead frame is configured so that it may be die stamped to cut lead frame leads to customize it for a particular semiconductor device bar size. Lead frame leads are cut at a specified distance from the lead frame bar pad so that a semiconductor device bar which is larger than the bar pad may be mounted on the bar pad and cut segments of lead frame leads that are attached to the bar pad.

Abstract: A method for training technicians to diagnose certain induced electronic faults using an internal combustion on a test stand engine capable of having faults inserted into electronic circuits. The faults are inserted into the engine by the instructor using switches concealed from the trainee. While the engine is operating the trainee, using diagnostic equipment, the trainee attempts to locate the electrical fault using a combination of observing symptoms and signal tracing.

Abstract: A method and an apparatus for recording the depth of a well logging apparatus is provided. The method and apparatus include the direct acquisition of broad depth information from the logging system conversion of the broad depth information to an acceptable digital signal and recording that signal on the audio track of a video cassette recorder. A microcontroller is used to convert broad depth information from either the logging system or the video cassette recorder (in the playback mode) to actual depth and depth rate for use by other displays and plotters.