Abstract: The present invention provides a composition of a fire extinguishing and fire-spread preventing agent that reduces a burden on the environment and is suitable for extinguishment and fire-spread prevention (re-ignition prevention) of large-scale fire(s), such as a forest fire, and a fire extinguishing and fire-spread preventing agent using this composition. The composition of a fire extinguishing and fire-spread preventing agent and the fire extinguishing and fire-spread preventing agent relating to the present invention are characterized by containing salt of phosphorus, potassium salt and a dispersion medium.

Abstract: The present invention provides a fire extinguisher capable of easily installing a thinly molded fire extinguishing agent. A fire extinguisher of the present invention comprises a fire extinguishing agent layer that generates aerosol by combustion, a first plate covering a first surface of the fire extinguishing agent layer and having a blowout aperture for the aerosol, and a second plate covering a second surface of the fire extinguishing agent layer, which is opposite to the first surface. An edge of the first plate and an edge of the second plate may be connected to each other. And, a peripheral wall extending toward the second plate may be provided at the edge of the first plate.

Abstract: A sensor flap for a downhole tool. The downhole tool is positionable in a wellbore penetrating a subterranean formation. The sensor flap includes a sensor housing and at least one sensor. The sensor housing is operatively connectable to the downhole tool. The sensor housing is movably positionable between a retracted position in the downhole tool and an extended position in contact with a wall of the wellbore. The sensor is positionable in the sensor housing, and may include a seismic detector to measure seismic activity when the sensor housing is in contact with the wall of the wellbore.

Abstract: Systems and methods for magnetically autonomously clamping a downhole component in a select direction of a borehole casing. The systems can include a sensor package that obtains a downhole measurement in a position in a cased borehole. The systems can include an integral magnetic clamp that removably clamps the downhole component (e.g., a downhole seismic shuttle) to the cased borehole. The systems can include a directional detector that outputs a select direction of the cased borehole relative to the downhole component. The systems can include a downhole controller that activates a portion of the integral magnetic clamp of the downhole component closest to the select direction output by the directional detector.

Abstract: A sensor array is positionable in a wellbore penetrating a subterranean formation. The sensor array includes a plurality of seismic sensors disposable about a perimeter of the wellbore and coupleable to a signal measurer with a configuration to provide three component seismic signal measurement within the wellbore. At least two of the seismic sensors are located at different azimuthal angles relative to one another and oriented tangentially to a longitudinal axis of the wellbore so as to receive tangential components of wellbore seismic signals to the exclusion of longitudinal and radial components of the wellbore seismic signals.

Abstract: A sensor array is positionable in a wellbore penetrating a subterranean formation. The sensor array includes a plurality of seismic sensors disposable about a perimeter of the wellbore and coupleable to a signal measurer with a configuration to provide three component seismic signal measurement within the wellbore. At least two of the seismic sensors are located at different azimuthal angles relative to one another and oriented tangentially to a longitudinal axis of the wellbore so as to receive tangential components of wellbore seismic signals to the exclusion of longitudinal and radial components of the wellbore seismic signals.

Abstract: A sensor flap for a downhole tool. The downhole tool is positionable in a wellbore penetrating a subterranean formation. The sensor flap includes a sensor housing and at least one sensor. The sensor housing is operatively connectable to the downhole tool. The sensor housing is movably positionable between a retracted position in the downhole tool and an extended position in contact with a wall of the wellbore. The sensor is positionable in the sensor housing, and may include a seismic detector to measure seismic activity when the sensor housing is in contact with the wall of the wellbore.

Abstract: Systems and methods for magnetically autonomously clamping a downhole component in a select direction of a borehole casing. The systems can include a sensor package that obtains a downhole measurement in a position in a cased borehole. The systems can include an integral magnetic clamp that removably clamps the downhole component (e.g., a downhole seismic shuttle) to the cased borehole. The systems can include a directional detector that outputs a select direction of the cased borehole relative to the downhole component. The systems can include a downhole controller that activates a portion of the integral magnetic clamp of the downhole component closest to the select direction output by the directional detector.

Abstract: Deploying systems and methods for deploying a plurality of seismic devices into a borehole comprising a cable including a plurality of inter-connected cable segments and ellipsoid seismic units with at least two rows of offset seismic protrusions to establish at least three points of contact between the seismic units and adjacent cylindrical surface of a borehole casing.

Abstract: Low-pressure fire-extinguishing liquid is converted into mist. A fire-extinguishing spray nozzle (10) comprises a main body (30) and an obstacle (36). The main body (30) has a port (40) for radially injecting the fire-extinguishing liquid. The obstacle (36) has an opposing surface (60) and is opposite to the port (40). The opposing surface (60) is arranged within a radial-injection region (102) of the fire-extinguishing liquid radially injected from the port (40). One part of the fire-extinguishing liquid radially injected from the port (40) collides with the opposing surface (60) and is reflected therefrom. The other part of the fire-extinguishing liquid radially injected from the port (40) passes around the opposing surface (60). The one part of the fire-extinguishing liquid is reflected from the opposing surface (60) and the other part passes around the opposing surface (60).

Abstract: Low-pressure fire-extinguishing liquid is converted into mist. A fire-extinguishing spray nozzle (10) comprises a main body (30) and an obstacle (36). The main body (30) has a port (40) for radially injecting the fire-extinguishing liquid. The obstacle (36) is arranged within a radial injection region (102) of the fire-extinguishing liquid radially injected from the port (40). The obstacle (36) has an outer peripheral surface formed in the shape of a truncated-conical inclined surface (62). This enables the fire-extinguishing liquid (70) radially injected from the port (40) and passing around the obstacle (36) to collide with the fire-extinguishing liquid (72) radially injected from the port (40) and reflected from the inclined surface (62) so as to produce mist (74) of fire-extinguishing liquid. When producing the mist (74) by such an action, the fire-extinguishing liquid radially injected from the port (40) may have a low pressure.

Abstract: A sonde and an apparatus for the deployment thereof against a well casing is described, the sonde comprising a resilient C-shaped member and at least one sensor.

Abstract: Deploying systems and methods for deploying a plurality of seismic devices into a borehole comprising a cable including a plurality of inter-connected cable segments and ellipsoid seismic units with at least two rows of offset seismic protrusions to establish at least three points of contact between the seismic units and adjacent cylindrical surface of a borehole casing.

Abstract: A sonde and an apparatus for the deployment thereof against a well casing is described, the sonde comprising a resilient C-shaped member and at least one sensor.

Abstract: A borehole logging tool system includes a surface system, a logging array, and a logging cable providing power supply and data paths connecting the logging array to the surface system, wherein the logging array includes a series of discrete sondes connected together. The sondes in the logging array, for example a borehole seismic logging array, are connected to their neighbours by means of lengths of logging cable. Such cable can be the same as that connecting the logging array to the surface system. The logging array can also include a master controller module which communicates with the surface system and which includes a first controller module which connects to the surface system and a second controller which controls operation of the sondes in the logging array independently of any other borehole logging tools connected to the surface system.

Abstract: A borehole tool including a tool body having and an anchoring mechanism, the anchoring mechanism having a drive mechanism including a motor, drive shaft, and clutch; an anchor arm moveable between first and second positions relative to the tool body; a push rod connecting the anchor arm to the drive mechanism; and a spring acting to bias the arm into a first position relative to the tool body. The push rod extends through the clutch mechanism and is engaged by the spring to bias the arm into the first position, and is also driven by the drive mechanism through the clutch to move the arm between the first and second position. The push rod may be connected to the anchor arm by a link. Measurement devices may be used to determine the position of the anchor arm or the tool body.

Abstract: A borehole tool including a tool body having and an anchoring mechanism, the anchoring mechanism having a drive mechanism including a motor, drive shaft, and clutch; an anchor arm moveable between first and second positions relative to the tool body; a push rod connecting the anchor arm to the drive mechanism; and a spring acting to bias the arm into a first position relative to the tool body. The push rod extends through the clutch mechanism and is engaged by the spring to bias the arm into the first position, and is also driven by the drive mechanism through the clutch to move the arm between the first and second position. The push rod may be connected to the anchor arm by a link. Measurement devices may be used to determine the position of the anchor arm or the tool body.