Abstract: According to embodiments of the present invention, an optical detection device is provided. The optical detection device includes an optics arrangement configured to generate an annular illumination pattern to illuminate a portion of a sample and further configured to receive a return light from the portion of the sample illuminated by the annular illumination pattern; and a detector arrangement configured to detect the return light. According to further embodiments of the present invention, an optical detection method is also provided.

Abstract: According to embodiments of the present invention, an optical detection device is provided. The optical detection device includes an optics arrangement configured to generate an annular illumination pattern to illuminate a portion of a sample and further configured to receive a return light from the portion of the sample illuminated by the annular illumination pattern; and a detector arrangement configured to detect the return light. According to further embodiments of the present invention, an optical detection method is also provided.

Abstract: A method for evaluating an earth formation from a well bore, that includes: collecting at least one of geochemical data, petrophysical data and geomechanical data from a wellbore; and identifying depositional facies of the earth surrounding the wellbore. A computer program product and a system are provided.

Abstract: A method for evaluating an earth formation from a well bore, that includes: collecting at least one of geochemical data, petrophysical data and geomechanical data from a wellbore; and identifying depositional facies of the earth surrounding the wellbore. A computer program product and a system are provided.

Abstract: A method for predicting the on-set of sand production or critical drawdown pressure (CDP) in high flow rate gas wells. The method describes the perforation and open-hole cavity stability incorporating both rock and fluid mechanics fundamentals. The pore pressure gradient is calculated using the non-Darcy gas flow equation and coupled with the stress-state for a perfectly Mohr-Coulomb material. Sand production is assumed to initiate when the drawdown pressure condition induces tensile stresses across the cavity face. Both spherical and cylindrical models are presented. The spherical model is suitable for cased and perforated applications while the cylindrical model is used for a horizontal open-hole completion.

Abstract: A method of generating a morphing sequence utilising a computer, the method comprising the step of user-defining respective components in a source object and a target object respectively, wherein each component comprises a plurality of local features of respective source and target meshes representing the source and target objects, and user-defining corresponding components between the source object and the target object. The method may further comprise the step of computer-deducing correspondences between components in the source and target objects based on the user-defined correspondences between other components.

Abstract: The present invention relates to controlling an actuator for positioning a read/write head in storage devices such as disk drives. More specifically, the invention relates to using a sensor to detect the disk vibration amplitude perpendicular to the disk surface, and using feed forward control to cancel or counteract the tendency of the read/write head to deviate off-track due to disk vibration. Various approaches are proposed to detect the disk vertical vibration.

Abstract: An electrical connector includes a molded plastic housing having an elongated body portion defining a front mating face and a rear terminating face of the connector. A plurality of terminal-receiving passages are defined by walls extending between the mating and terminating faces. The walls are of generally uniform thickness between the faces to provide an even flow pattern for the plastic material of which the housing is molded. A plurality of conductive terminals are mounted in the terminal-receiving passages.

Abstract: The present invention relates to controlling an actuator for positioning a read/write head in storage devices such as disk drives. More specifically, the invention relates to using a sensor to detect the disk vibration amplitude perpendicular to the disk surface, and using feed forward control to cancel or counteract the tendency of the read/write head to deviate off-track due to disk vibration. Various approaches are proposed to detect the disk vertical vibration.

Abstract: A method for predicting the on-set of sand production or critical drawdown pressure (CDP) in high flow rate gas wells. The method describes the perforation and open-hole cavity stability incorporating both rock and fluid mechanics fundamentals. The pore pressure gradient is calculated using the non-Darcy gas flow equation and coupled with the stress-state for a perfectly Mohr-Coulomb material. Sand production is assumed to initiate when the drawdown pressure condition induces tensile stresses across the cavity face. Both spherical and cylindrical models are presented. The spherical model is suitable for cased and perforated applications while the cylindrical model is used for a horizontal open-hole completion.

Abstract: An electrical connector includes a molded plastic housing having an elongated body portion defining a front mating face and a rear terminating face of the connector. A plurality of terminal-receiving passages are defined by walls extending between the mating and terminating faces. The walls are of generally uniform thickness between the faces to provide an even flow pattern for the plastic material of which the housing is molded. A plurality of conductive terminals are mounted in the terminal-receiving passages.