Abstract: An apparatus for use in a fluid conduit comprises a plurality of segments arranged along a longitudinal axis, each segment comprising an extendable structure configured for extension in a lateral direction relative to the longitudinal axis, wherein the apparatus is configured for the sequential initiation of lateral extension of the extendable structures of at least two segments. At least two segments may be configured to define different maximum extended dimensions in the lateral direction and may include adjacent support surfaces which provide mutual support for one another when the at least two segments are laterally extended. The apparatus may be configured to form a seal, an anchor, a supporting structure and/or a flow restriction in a fluid conduit.

Abstract: A directional casing drilling system includes a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig includes a casing drive for rotating the casing string in the borehole, a control system for controlling the casing drive, and a mud pump for pumping a continuous flow of drilling mud into the casing string. The BHA includes a torque transfer section, with which it is secured in the casing string, and a drill bit section held in a drilling position in the torque transfer section. It further includes a mud drive that rotates the drilling position of the drill bit section about the longitudinal axis of the torque transfer section, and a communicating device for communicating the orientation of the drill bit to the control system. The BHA is steered by adjusting the rotational speed of the casing string.

Abstract: A downhole tool includes a slip member having an actuation surface, a bracing surface and an engagement surface. The slip member is pivotable about a pivot axis such that it can move between retracted and extended configurations. When the slip member is in the extended configuration, the engagement surface engages a bore wall. The downhole tool also includes a wedge member that has a wedge surface. The wedge member and the slip member are configured to move relative to each other such that the wedge surface of the wedge member engages the actuation surface of the slip member to cause the slip member to pivot about the pivot axis.

Abstract: An improved autonomous well valve has a body that constitutes an actuator for opening and closing of first and second valves. The body has a body axis of symmetry. The body, which in operation is submerged, has an effective density that is equal or greater than the density of a first fluid and less than the density of a second fluid. The body is placed in a housing, the housing having a housing axis of symmetry. At least two first valves are designed to allow flow between the inside and outside of the housing, are distributed about the body axis and mechanically connected between the body and the housing. The body axis at the first valves is restricted from moving above the housing axis.

Abstract: This disclosure relates to system and method for delaying actuation using a destructible impedance device. In one embodiment, a delayed actuating system can comprise a base pipe comprising a first portion of an orifice, a sliding sleeve around the base pipe, the sliding sleeve comprising a second portion of said orifice, further said sliding sleeve maneuverable into a first position, wherein said first portion of said orifice rests at least partially over said second portion of said orifice, a second position, a distance away from said second position. Further, the delayed actuating system can comprise a biasing device biasing the sliding sleeve toward the second position, and a destructible impedance device at least partially in side said orifice, the destructible impedance device preventing the sliding sleeve from leaving the first position.

Abstract: A system and method for detecting screen-out using a fracturing valve for mitigation, wherein the fracture method can comprise fracturing a well using a fracturing valve, while a downhole pressure is less than a predetermined threshold. The method can also comprise actuating by automated process the fracturing valve from a fracturing position to a nonfracturing position upon detecting by a pressure sensor in the wellbore that the downhole pressure has reached the predetermined threshold.

Abstract: The present invention features a solar-thermal power generator. The generator makes use of solar energy to heat a component of the generator which leads to the heating of air or fluid within the generator. The rise of the heated air of fluid is channeled towards turbines which turn to produce electrical power.

Abstract: Anhydrous dyeing method for textile, including the steps of: using a pure dye as a plating material and a textile fabric as a substrate, and depositing the dye onto a surface of the textile fabric by using a physical vapor deposition technique. The color of plated textile fabric is fixed through steaming, heat setting or other post-processing methods. The invention achieves the purpose of dyeing textile fabric by depositing dye onto the surface of the textile fabric uniformly and densely using a physical vapor deposition technology, and fixing the color in a finishing step. The process is simple and convenient, produces no waste water discharge, has a high utilization rate of dye, and is operable and feasible for mass production.

Abstract: The present invention discloses an uninterrupted power bank, mainly comprising: a first switch, a rectifier, a first power converter, a second switch, a battery unit, a second power converter, a third power converter, a third switch, a fourth switch, and output ports. During a normal supply of a mains supply, an AC power provided by the mains supply is transmitted from the uninterrupted power bank to a back-end power supply device. In the meantime, the AC power is simultaneously converted to a DC power and then stored in the battery unit. When the mains supply is suddenly interrupted, the DC power stored in the battery unit is released and subsequently converted to a 390 VDC power for being supplied to the power supply device. Therefore, this uninterrupted power bank is able to largely reduce the power loss because of supplying DC power to back-end power supply device.

Abstract: A method for setting a barrier within a wellbore comprises deploying a first plug assembly (16) into a wellbore on a running string, wherein the first plug assembly comprises an extendable arrangement (24), and then setting the first plug assembly within the wellbore by extending the extendable arrangement. A settable medium is injected via the running string into the wellbore above the first plug assembly. To be accompanied, when published, with FIG.

Abstract: A directional casing drilling system includes a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig includes a casing drive for rotating the casing string in the borehole, a control system for controlling the casing drive, and a mud pump for pumping a continuous flow of drilling mud into the casing string. The BHA includes a torque transfer section, with which it is secured in the casing string, and a drill bit section held in a drilling position in the torque transfer section. It further includes a mud drive that rotates the drilling position of the drill bit section about the longitudinal axis of the torque transfer section, and a communicating device for communicating the orientation of the drill bit to the control system. The BHA is steered by adjusting the rotational speed of the casing string.

Abstract: The present invention features a flood damage prevention apparatus having a modular equilateral triangular prism enclosure with an interlocking system used to interlock and position additional modules of the apparatus during flood damage prevention deployment. The interlock system enables additional modules of the flood damage prevention apparatus to be locked in position. Each module may be protected from flood debris damage by way of a protective covering over each enclosure. The apparatus may be filled with fluid via a seal tight opening located on the surface of the enclosure which in turn may be closed using a seal tight apparatus.

Abstract: A sealing method and sealing arrangement is described. The sealing arrangement comprises a body and first and second sealing elements mounted thereon. The sealing elements are each movable between a retracted configuration and an extended configuration and are configured to move from the retracted configuration to the extended configuration in response to an axial compression. The second sealing element is however maintained in its retracted configuration until the first sealing element has moved from its retracted configuration to its extended configuration. The sequential extension of the sealing elements can deform to assume the extended configuration under compression and the progression and the form of the deformation can be arranged to improve the quality of the seal achieved. An extended sealing element in engagement with the bore wall may also serve as an anchor or retainer and facilitate application of a compression force to an intermediate sealing element.

Abstract: A method is for removing casing from a well. The method includes setting a first sealing element into fluid-sealing engagement with the inside of the casing, lowering a flow-through string into the well, a cutting tool and a second, reversibly expandable sealing element being connected to the string, forming perforations into the casing by means of said cutting tool, expanding the second, expandable sealing element into fluid-sealing engagement with the inside of the casing, passing a pressurized fluid through the string and into the annulus via the perforations, so that the viscous and/or solid mass is displaced up the annulus, cutting the casing around its entire circumference; and pulling a length of the casing up from the well.

Abstract: The present invention features a flood damage prevention apparatus having a modular equilateral triangular prism enclosure with an interlocking system used to interlock and position additional modules of the apparatus during flood damage prevention deployment. The interlock system enables additional modules of the flood damage prevention apparatus to be locked in position. Each module may be protected from flood debris damage by way of a protective covering over each enclosure. The apparatus may be filled with fluid via a seal tight opening located on the surface of the enclosure which in turn may be closed using a seal tight apparatus.

Abstract: The present invention features systems, methods and devices directed to fire suppression and/or extinguishment using solid carbon dioxide and/or liquid or aqueous hydrogen. Systems and methods of deployment and/or dispersal of carbon dioxide and hydrogen (which would form water at its deployment location) are contemplated. The present invention also contemplates method(s) of fire suppression and/or extinguishment which may include the steps of: carbon dioxide canister deployment, formation of a carbon dioxide curtain and hydrogen deployment and/or dispersal.

Abstract: Described herein is a system and method for controlling flow in a pipe string using a finger valve. Specifically, the disclosure describes a finger valve comprising a base pipe and a sliding sleeve. The base pipe can comprise a finger port, one or more fingers; and one or more hinges, each of the hinges connecting one of the fingers to the base pipe. The sliding sleeve can comprise a sliding sleeve having a first sleeve with in inner surface comprising a void and a depressor. The first sleeve can be positionable in a first position and a second position. In the first position, the depressor can push the one or more fingers into a closed position. In the second position, the void can rest at least one of the one or more fingers, allowing the at least one of the one or more fingers to move into an open position.

Abstract: A hydraulic cutting tool, a system, and a method are for hydraulic cutting through a pipe wall of a pipe body. For this purpose, the cutting tool is provided with at least one cutting section comprising at least one fluid discharge body. Each such fluid discharge body comprises at least two outwardly directed discharge openings having non-parallel discharge directions directed at a common intersection point located outside the fluid discharge body. The cutting is carried out by means of an abrasive fluid being supplied, via a flow-through pipe string, to the at least one fluid discharge body from a remote location. Thereby, abrasive cutting jets will discharge at high velocity from the fluid discharge body so as to meet and disperse in the intersection point, thus weakening the further cutting ability of the cutting jets.

Abstract: A method is for cutting of at least one line disposed along a pipe string in a well. The method includes (A), using a cutting tool for selective cutting activation and provided with at least one cut-forming means for cutting in a radial direction outward from the cutting tool; and (B) lowering the cutting tool to a longitudinal section where the cutting is to be carried out. In (A), a cutting tool is used for controlled cutting in a peripheral direction and distributed in an axial direction relative to the cutting tool. The method further includes (C), activating the cutting tool and cutting, in the radial direction through and past the wall of the pipe string, at least one peripherally extending hole collectively covering the entire circumference of the pipe string, and also distributing the hole in the axial direction.

Abstract: A hydraulic cutting tool, a system, and a method are for hydraulic cutting through a pipe wall of a pipe body. For this purpose, the cutting tool is provided with at least one cutting section comprising at least one fluid discharge body. Each such fluid discharge body comprises at least two outwardly directed discharge openings having non-parallel discharge directions directed at a common intersection point located outside the fluid discharge body. The cutting is carried out by means of an abrasive fluid being supplied, via a flow-through pipe string, to the at least one fluid discharge body from a remote location. Thereby, abrasive cutting jets will discharge at high velocity from the fluid discharge body so as to meet and disperse in the intersection point, thus weakening the further cutting ability of the cutting jets.