Abstract: A method and apparatus useful to determine the integrity of a cement bond log disposed in the annular space between a casing and a wellbore. The method and apparatus produce a transversely polarized shear wave and emit the wave through the casing and into the wellbore. The transversely polarized shear wave attenuates upon passage through the cement bond log. The integrity of the cement bond log can be determined through an analysis and evaluation of the attenuation results.

Abstract: A modular wellbore treatment system having a reservoir for holding wellbore/reservoir treatment material, a pump for pressurizing and delivering the wellbore/reservoir treatment fluid, and a sealing section for creating a localized pressurized zone proximate to a region of a formation to be treated. The wellbore treatment fluid includes permeability modifiers, gel, acids, stimulation fluids, epoxy type substances, void fillers, gravel pack fixing compounds, brine, reactive fluids to water, oil, and gas, and alcohol.

Abstract: A method for processing data in the form of a stream of messages regarding, for example, stock price information, implemented using a computer system wherein the data may arrive at a rate faster than the computer system can process individual messages. Each message is tagged with a phase number as it arrives; only the data in the messages received at the end of a phase are stored in the computer system's database. Periodically, at the end of at least one phase and perhaps at the end of many phases depending on the rate messages are received, the computer queries its database to select information regarding the data. Algorithms, according to the present invention, allow the efficient selection of data by disregarding a portion of the information in some cases, and, in other cases, by finding the phase ranges wherein data messages overlap between phase ranges. In the former, data is lost; it the latter, data processing may be slowed. The selected information is then output.

Abstract: A method and system for cementing and perforating a wellbore in a single step by coupling a perforating gun with a wiper plug. The method includes injecting cement in a wellbore having casing therein and an annulus between the casing and wellbore. A wiper plug is dropped on the cement having a perforating gun attached to the wiper plug. The plug is forced downward pulling the perforating gun along. The downward motion of the plug in turn pushes the cement out the bottom end of the casing and into the annulus. The cement in the annulus is allowed to set and the perforating gun is activated.

Abstract: A method useful for evaluating the presence and/or the quality of the cement bond of a downhole tubular. The method involves measuring radial resonance modes of the tubular, and comparing those measured values to the unbound tubular resonant values of a calibration ring. For a well bonded tubular, the measured radial resonance should be greater than that of the unbound tubular calibration ring. In regions where a fluid, such as water surrounds the outside of the tubular, or the cement is otherwise not bonded to the outer surface of the tubular, the measured response should be less than the calibrated response. The calibration ring should have the same diameter, wall thickness, and be made of the same material as the tubular.

Abstract: A system for analyzing an information system comprising a computer readable medium; and a set of computer readable instructions embodied in the computer readable medium for transmitting an audit application to a first store controller so that the audit application can generate audit data representing audit information from the first store controller, receiving audit data from the first store controller, transmitting an audit application to a second store controller so that the audit application can generate audit data representing audit information from the second store controller, receiving audit data from the second store controller, determining a comparison basis according to the audit information from the first store controller, comparing the audit date from the second store controller to the comparison basis, generating a set of comparison data resulting from the comparison, displaying items from the second store controller that are different from the comparison basis.

Abstract: An apparatus for evaluating a tubular in a borehole of includes at least two electromagnetic acoustic transducers. The transducers are configured to generate and receive first and second acoustic waves in the tubular. A difference in velocity of the two acoustic waves is indicative of a stress field in the tubular.

Abstract: A bioreactor includes a fluid containment vessel and a rotating mixing element including radial inflow elements configured to direction fluid radially inwardly of the mixing element and axial out flow elements configured to redirect the radial inward flow in an axial direction. Both the vessel and the mixing element are made from plastic and the vessel comprises a flexible bag supported by a rigid housing. In one embodiment, the mixing element is pneumatically driven by the buoyancy of gas introduced into the vessel and trapped within gas entrapment cups formed on the periphery of the mixing element. As the volumetric capacity of the bioreactor increases, the ratio of the diameter of the mixing element to the width of the vessel decreases, and a gap defined between the bottom of the mixing element and the bottom of the vessel increase.

Abstract: A casing inspection device with magnets and flux sensors. Measurements of axial motion of the device are used to get better definition of the axial extent of casing defects. A contact device may be used for motion measurement. The output of the contact device may be used to control the acquisition of flux measurements direction.

Abstract: A modular wellbore treatment system having a reservoir for holding wellbore/reservoir treatment material, a pump for pressurizing and delivering the wellbore/reservoir treatment fluid, and a sealing section for creating a localized pressurized zone proximate to a region of a formation to be treated. The wellbore treatment fluid includes permeability modifiers, gel, acids, stimulation fluids, epoxy type substances, void fillers, gravel pack fixing compounds, brine, reactive fluids to water, oil, and gas, and alcohol.

Abstract: A filter module for a WOSA/XFS transaction processing system is disclosed. The system includes a WOSA transaction manager which is responsive to transaction requests from at least one application. A service provider layer is adapted to relay transaction requests passed from the transaction manager to associated hardware for execution. The filter module is adapted to intercept transaction requests from the transaction manager to the service provider layer and to process the requests. The filter module is further adapted to intercept transaction responses form the service provider layer to the transaction manager and the at least one application and to process these responses.

Abstract: An apparatus for evaluating the possibility of casing failure in a borehole measures azimuthal changes in a property responsive to azimuthal changes in axial stress. The measurements may be of acoustic velocity, magnetic permeability, and Barkhausen noise.

Abstract: Disclosed are methods using neutral red to mediate the interconversion of chemical and electrical energy. Electrically reduced neutral red has been found to promote cell growth and formation of reduced products by reversibly increasing the ratio of the reduced:oxidized forms of NAD(H) or NADP(H). Electrically reduced neutral red is able to serve as the sole source of reducing power for microbial cell growth. Neutral red is also able to promote conversion of chemical energy to electrical energy by facilitating the transfer of electrons from microbial reducing power to a fuel cell cathode.

Abstract: A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability.

Abstract: An apparatus for evaluating a tubular in a borehole of includes at least two electromagnetic acoustic transducers. The transducers are configured to generate and receive first and second acoustic waves in the tubular. A difference in velocity of the two acoustic waves is indicative of a stress field in the tubular.

Abstract: A pulsed neutron tool with three or more detectors is used for making measurements inside casing. The measurements may be used to determine gas saturation at a constant gas pressure, pressure at constant gas saturation, or to determine both gas saturation and gas pressure.

Abstract: An electrical connector has a connect or shroud. A pin block disposed in the connector body supports a plurality of terminal pins that have head portions projecting out a forward end of the pin block and tail portions projecting out a rearward end of the pin block. The connector shroud has a socket at a forward end that receives a terminal stabilizer that is locked to the pin block to hold the terminal stabilizer and the pin block in assembly with the connector shroud to form a module. The module may include a block seal that can be sandwiched between the terminal stabilizer and the pin block during assembly of the module. The rear end of the connector shroud is truncated at an angle for a direct top down assembly of the module to a housing that has an attachment collar that is truncated at the same angle. The pin terminal tail portions are bent at a right angle and project through holes in a pin alignment member and a printed circuit board that are mounted inside the housing.

Abstract: An electrical connector has a connect or shroud. A pin block disposed in the connector body supports a plurality of terminal pins that have head portions projecting out a forward end of the pin block and tail portions projecting out a rearward end of the pin block. The connector shroud has a socket at a forward end that receives a terminal stabilizer that is locked to the pin block to hold the terminal stabilizer and the pin block in assembly with the connector shroud to form a module. The module may include a block seal that can be sandwiched between the terminal stabilizer and the pin block during assembly of the module. The rear end of the connector shroud is truncated at an angle for a direct top down assembly of the module to a housing that has an attachment collar that is truncated at the same angle. The pin terminal tail portions are bent at a right angle and project through holes in a pin alignment member and a printed circuit board that are mounted inside the housing.

Abstract: Electrodes and configurations for electrochemical bioreactor systems that can use electrical energy as a source of reducing power in fermentation or enzymatic reactions and that can use electron mediators and a biocatalyst, such as cells or enzymes, to produce electricity are disclosed. Example electrodes in the system may comprise: (1) neutral red covalently bound to graphite felt (FIG. 1); (2) a carboxylated cellulose bound to the graphite fell, neutral red bound to the carboxylated cellulose, NAD+ to the graphite fell, and an oxidoreductase (e.g., fumarate reductase) bound to the graphite fell; or (3) a metal ion electron mediator bound to graphite. Various biocatalysts, such as an oxidoreductase, cells of Actinobacillus succinogenes, cells of Escherichia coli, and sewage sludge, are suitable for use in the electrochemical bioreactor system.

Abstract: A car seat alarm has an on/off switch that is initiated by clicking the latch on the car seat. (“Pumpkin” or removable carrier infant seats may use a two-part switch.) Initiating the circuit when clicking the child into the seat would conserve battery life. The device would be off when the seat is unlocked. Additionally, if an occasion arose where a parent or caregiver were sitting in the vehicle with a child and needed to have the engine off, that parent or caregiver would simply need to unclick or unlock the child car seat restraint to deactivate the device. A learning or programmable chip can be programmed to the same frequency as the panic button on the key fob. This may be done by pressing the panic button on the key fob in close proximity to the learning circuit on the seat.