Abstract: A subterranean pump is delivered on coiled tubing with power and control cables running inside. The pump suction has a tubular inlet that seals in a polished bore in the surrounding tubular. A diverter opens a lateral port and closes entry to the pump suction when the pump is not running and the formation pressure is high enough to bring production to the surface. This configuration prevents the pump from turning while the formation pressure allows production to the surface. If the pump is started it reduces pressure ahead of a movable plug to draw it toward the pump against a spring bias. The lateral ports close and an inline flow path opens to allow the pump to draw through the diverter and discharge into the annular space around the coiled tubing on the way to the surface.

Abstract: The present invention relates to an oil-pressure type fixed piston sampler for sampling a soil sample for site investigation. The oil-pressure type fixed piston sampler comprises a sampling unit (12) and an oil-pressure controller (14). Here, when the sampling unit (12) inserted into a drilled hole and a movable piston (80) moves downward, a sampling tube (1) moves downward to take a sample. The oil-pressure controller (14) connected with the sampling unit (12) controls oil pressure to cause the movable piston (80) to shift vertically. The sampling unit (12) comprises an upper head (20), a lower head (40), a piston housing (70), a rod block (100), a movable rod (90), a fixed piston (110), a fixed rod (92) and a separation rod (94). Since the sampling tube (1) takes a sample by a piston indentation method, high-quality, undisturbed samples can be obtained.

Abstract: The invention provides an apparatus, method and system for stimulating production of a natural resource (e.g., Oil, gas or water) producing well using vibrational energy delivered to the geological formation combined with one or more existing EOR treatments. Pressure waves are applied through a device that maybe permanently installed, and continuously or periodically operated during EOR treatment and even later during recovery of the natural resource. The vibrational energy provide a synergistic effect with existing EOR treatments, enhancing the outcome of EOR treatments. The invention provides a downhole type apparatus constructed to resist corrosion and provides one or more heat sink chambers for controlling heat dissipation during operation. The system provided by the invention is capable of monitoring production, adapting stimulation parameters based on user input and other pertinent parameters.

Abstract: A method for identifying fluid migration or inflow associated with a wellbore tubular, comprises measuring strain of the wellbore tubular with a system comprising at least one string of interconnected sensors that is arranged such that the sensors are distributed along a length and the circumference of the wellbore tubular; establishing a baseline that is a function of steady state strain measurements within a first time period; and identifying fluid migration or inflow where strain measurements substantially deviate from the baseline within a second time period.

Abstract: Systems and methods for using very small devices, “McNano devices,” to facilitate and enhance operations in the oilpatch. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: Modular pumpouts and flowline architecture are described. An example apparatus includes a downhole tool to sample fluid from a subterranean formation, and a plurality of fluidly coupled pump modules disposed on the downhole tool. Each of the pump modules includes: a pump having a pump inlet and a pump outlet, where the pump inlet is coupled to a first flowline; a first valve assembly having first, second and third ports, wherein the first port is coupled to the first flowline, the second port is coupled to the pump outlet, and the third port is coupled to the first flowline; and a second flowline not fluidly coupled to the first valve assembly or the pump.

Abstract: A process for mineral oil production, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer is injected through at least one injection borehole into a mineral oil deposit, and crude oil is withdrawn from the deposit having a deposit temperature of 35° C. to 120° C., preferably 40° C. to 90° C., through at least one production borehole, wherein the water-soluble, hydrophobically associating copolymer comprises at least acrylamide or derivatives thereof, a monoethylenically unsaturated monomer having anionic groups and a monoethylenically unsaturated monomer which can bring about the association of the copolymer.

Abstract: A composition, treatment fluid and method using hydrolyzable fines. A treatment fluid, which may optionally include a high solids content fluid (HSCF) and/or an Apollonianistic solids mixture, includes a fluid loss control agent comprising a dispersion of hydrolyzable fines, optionally with one or more of a surfactant, plasticizer, dispersant, degradable particles, reactive particles and/or submicron particles selected from silicates, ?-alumina, MgO, ?-Fe2O3, TiO2, and combinations thereof.

Abstract: Disclosed herein is a gel comprising, polyacrylamide crosslinked with a non-metallic crosslinker, the non-metallic crosslinker comprising a polyamine. A method of making the gel and a method of using the gel are also disclosed.

Abstract: Of the many compositions and methods provided herein, one method includes a method comprising: contacting tar resident in a well bore with a tar stabilizing polymer comprising at least one polymer selected from the group consisting of a styrene polymer, an acrylate polymer, a styrene-acrylate polymer, and any combination thereof; and allowing the tar stabilizing polymer to interact with the tar to at least partially reduce the tendency of the tar to adhere to a surface.

Abstract: The present invention discloses a selection process for installing underground workspace in or near a hydrocarbon deposit that is an appropriate workspace from which to drill, operate and service wells applicable to any of a number of methods of recovering hydrocarbons. The present invention includes a number of innovative methods for developing workspace for drilling from a shaft installed above, into or below a hydrocarbon deposit, particularly when the hydrocarbon reservoir is at significant formation pressure or has fluids (water oil or gases) that can enter the workspace. These methods can also be used for developing workspace for drilling from a tunnel installed above, into or below a hydrocarbon deposit. The present invention also discloses a procedure for evaluating the geology in and around the reservoir and using this information to select the most appropriate method of developing workspace for drilling from a shaft and/or tunnel.

Abstract: A system and a method of controlling a fluid temperature for improving injectivity of a supercritical carbon dioxide into a stratum includes a casing part installed in a well, which is formed from a ground surface to a target stratum for injection, a grouting part formed between the casing part and a counterforted wall of the well, a cover covering an upper portion of the casing part, an injection tube inserted into the casing part through the cover and receiving the carbon dioxide injected into the injection tube, a perforation part serving as a passage allowing the carbon dioxide to flow from the injection tube to the target stratum, a packing part formed between the injection tube and an inner portion of the casing part, a heat coil part surrounding the injection tube, and a temperature adjusting unit controlling a temperature of the heat coil part.

Abstract: A formation treatment system includes an annulus spanning member having one or more openings therein, the one or more openings incorporating a degradable material. A tubular having one or more ports therein in fluid communication with the one or more openings. A sleeve capable of isolating or communicating the one or more ports with an ID of the tubular. A method for effecting precision formation treatment is included.

Abstract: A method of completing a wellbore having a branch wellbore extending outwardly from a window in a parent wellbore is provided. The method comprises positioning a tubular string in the window, wherein the positioning comprises deflecting the tubular string from the parent wellbore into the branch wellbore. The method also comprises providing a particulate barrier outside and against the tubular string proximate the window, the particulate barrier substantially excluding transport of particulate matter from the branch wellbore into the parent wellbore outside of the tubular string through the window. The method also comprises the tubular string passing fluid into the tubular string proximate the window from a formation proximate to the window while substantially excluding transport of particulate matter from the formation proximate to the window into the tubular string.

Abstract: A bi-stable valve includes a first chamber having a first aperture and a second aperture, and a second chamber having a first aperture and a second aperture. The bi-stable valve also includes a shaft having a first valve member adjacent a first end of the shaft and a second valve member adjacent an opposite second end of the shaft. The shaft is movable between a first position, in which the first valve member closes off the second aperture of the first chamber and the second valve member closes off the second aperture of the second chamber to prevent fluid from passing through the second apertures of the first and second chambers, and a second position, in which the first valve member and the second valve member allow fluid to pass through the second aperture of the first chamber and the second aperture of the second chamber.

Abstract: The device is used in technical operations during well completion. The device acts as a sealing device by using a seal (5). The seal (5) divides the well into an upper cavity (16) and a lower cavity (17). The seal (5) includes a collet (7) that comprises segments (8), a liner (10), springs (11) and a casing (6). The segments (8) are capable of separating upon interaction with the well equipment (drilling column (19)) and are provided with additional seals (9). The casing (6) is situated in the lower portion of the collet (7) and enables the movement of the segments (8) upon the separation thereof The seal (5) is situated in a threaded (2, 3) housing (1). The housing (1) is secured in a roller bearing (4).

Abstract: A rig control interface, system, and method. The rig control interface includes an emergency disconnect sequence button configured to initiate an emergency disconnect sequence signal to be sent to multiplex pods resulting in an emergency disconnect sequence including a plurality of functions being performed by devices in one or both of a lower marine riser package and a blowout preventer stack; and an emergency disconnect sequence timer display triggered by initiation of the emergency disconnect sequence signal, the emergency disconnect sequence timer display configured to indicate one or both of time elapsed after initiation of the emergency disconnect sequence signal and a status of the plurality of functions being performed by the devices in the one or both of the lower marine riser package and the blowout preventer stack.

Abstract: Emergency disconnect sequence (EDS) video capture systems and method. The EDS video capture system includes a stack screen on a drilling platform, the stack screen including an EDS button to initiate an EDS signal to be sent to multiplex pods resulting in an EDS including a plurality of functions being performed by devices in one or both of a lower marine riser package and a blowout preventer stack, and an EDS function status indicator. The indicator is either a video capture device aimed at the stack screen to automatically capture one or more of the initiation of EDS signal by the EDS button and a progress of the EDS indicated by the EDS function status indicator as EDS evidence or a video card to capture one or more of the initiation of the EDS signal by the EDS button and a progress of the EDS indicated by the EDS function status indicator as EDS evidence, and a storage to store the EDS evidence.

Abstract: Method, riser assembly and gas handler for diverting gas from a riser. The riser assembly includes a riser having a first end and a second end and a conduit extending from the first end to the second end; a gas handler connected to the riser and provided between the first end and the second end, the gas handler having an external casing; plural pipes attached to an outside of the riser such that at least one pipe of the plural pipes enters through the external casing; and a gas vent pipe configured to start at the gas handler and extend towards the second end of the riser and the gas vent pipe is further configured to divert a gas from the gas handler through the outside of the riser.

Abstract: A safety joint to be included in a riser between a floating structure and a subsea installation at a location in the riser above a stress joint where it will be subjected to minimum bending loads. The safety joint includes a first riser coupling at its upper end for connection to a corresponding riser coupling of a riser joint and a second riser coupling at its lower end for connection to a corresponding riser coupling of a riser joint or stress joint. An emergency disconnect package with an emergency disconnect coupling and a retainer valve unit is arranged between the upper end and the lower end of the safety joint. A riser including such a safety joint.

Abstract: The present invention is directed to a system including a self supporting riser (SSR) which is connected to a well to produce fossil hydrocarbon reservoirs deep below the seafloor. The SSR is constructed of a plurality of joints comprising regular joints and specialty joints that define the SSR and are selected to optimize the SSR for a well in a specific location. A unique aspect of the SSR of the present invention is that while capable of connecting to the wellhead, or tree on the seafloor, it can also be secured to an anchor during operations. The invention is further directed to a small vessel moored to the SSR by a line such as a hawser, the riser providing an anchor to the vessel, and the SSR carrying fluids from the well to the vessel and from the vessel to the well. The vessel has provisions for processing the fluids from the wellhead.

Abstract: The present invention is directed to novel methods and apparatus for the design, installation, use, recovery, and reuse of a Self Supporting Riser (SSR) for wells that are not under a platform. The SSR of the present invention uses standardized joints that can be recovered, potentially warehoused, and recombined in different configurations for different purposes or locations. Emphasis is on methods and apparatus that use relatively small vessels subject to high motions in the use and recovery of the SSR, especially the methods, apparatus and vessel for downhole intervention and work over through a SSR.

Abstract: System and method for controlling a blowout preventer (BOP) stack and a tree attached to a wellhead of a well. The system includes at least a MUX pod configured to receive electrical signals and a fluid under pressure, and to provide a first set of functions to the LMRP part, and a second set of functions to a lower BOP part; a pod extension module configured to receive the fluid under pressure from the MUX pod, and to provide a third set of functions to the tree based on the received fluid under pressure; and a control part configured to be attached to the tree and to communicate with the pod extension module. The third set of functions for the tree is different from the second set of functions provided to the lower BOP part.

Abstract: The present invention discloses apparatuses, systems, and methods for operating a gas well. Some embodiments include a plunger apparatus configured to fall through a continuous water phase (including water slugs) in a gas producing well by overcoming pressure and drag 5 forces from the water by having a sufficient mass, hydrodynamic profile, and sufficiently large area for passage of the continuous water. In one embodiment, a plunger body and plug mechanism are provided, wherein the plug mechanism has open and closed positions, which may be automatically changed or controlled by a surface or other control system, and wherein the plunger body and plug may be a physically integrated one-piece system, or an interoperable two piece system.

Abstract: A work string tool to be operably associated with a weight-set packer tool uses pressure applied by fluid circulated from the surface above the weight-set packer, to deploy a hydraulic hold-down anchor mechanism above the packer to reduce the risk of unsetting during a high pressure “positive” wellbore integrity test. An axial bore of a tool tubular body houses first and second inner sleeves, and is configured to accommodate independent axial movement of the sleeves to provide multiple fluid flowpath configurations through the tool which allow use of circulation fluid to pressure to circulate a ball obturator to a valve seat in a sleeve when a configuration change is required to deploy or release the anchor means.

Abstract: Presented is a system and method for disconnecting a plurality of wireline tools from a string of wireline tools while maintaining operation of the wireline tools remaining with the string of wireline tools. The disconnection is non-destructive and allows a reconnection of the disconnected tools after retrieval from the well. The system also enables testing of the disconnection mechanism before deploying the wireline tool string into the well.

Abstract: An expandable screen assembly includes, a tubular, and a plurality of screens in operable communication with the tubular each of the plurality of screens is configured to radially expand in response to a same force longitudinally compressing the plurality of screens.

Abstract: A wellhead housing has a casing hanger with an actuator mechanism to provide for direct transfer of casing and pressure loads to the housing even in conditions where the casing hanger may be set in a high position in the wellhead housing on a load shoulder, or in a casing hanger in the wellhead housing for an earlier installed, larger diameter casing string.

Abstract: A flow restrictor for controlling the flow of cement or other fluid in oil wells comprises a plurality of restrictor elements, each defining first and second apertures, which are assembled in a stacked configuration and slidingly inserted into the well casing or other tubing so that the first apertures define a direct flowpath, preferably including a non-return valve, and the second apertures define a second, indirect flowpath between the elements and the inner surface of the tubing. The elements include seals for fluidly sealing each element in the bore of the tubing which are preferably slidably retractable and resiliently radially outwardly biased so as to adapt conformably to different tubing types having different internal diameters. The restrictor may slide along the tubing in use.

Abstract: A process for the removal of CO2 and/or H2S from a gas comprising CO2 and/or H2S. The process comprises contacting the gas in an absorber with an absorbing solution wherein the absorbing solution absorbs at least part of the CO2 and/or H2S so as, to produce a CO2 and/or H2S lean gas and a CO2 and/or H2S rich absorbing solution. At least part of the CO2 and/or H2S rich absorbing solution is heated to produce a heated CO2 and/or H2S rich absorbing solution. At least part of the CO2 and/or H2S is removed from the heated CO2 and/or H2S rich absorbing solution in a regenerator to produce a CO2 and/or H2S rich gas and a CO2 and/or H2S lean absorbing solution. In the process, at least part of the heat for heating the CO2 and/or H2S rich absorbing solution in step b) is obtained in a sequence of multiple heat exchangers.

Abstract: A dry sprinkler head which comprises a fail safe seat, and is fully adjustable.

Abstract: The present application is directed to fire fighting appliances. The application provides a system for recording flows on a fire appliance to address deficiencies in the prior art where such information is only analysed during an event.

Abstract: A combined plug and sealing ring for a sprinkler nozzle includes a nozzle plug having a substantially cylindrical portion adapted to engage within a nozzle orifice of a sprinkler nozzle, and a cap overlaying the substantially cylindrical portion. A sealing ring is adapted to seat onto a threaded pipe fitting portion of the sprinkler nozzle. A leash interconnects the nozzle plug and the sealing ring. A combined plug and sealing ring in combination with a sprinkler nozzle, and a method of installing a sprinkler nozzle in a highly corrosive or extremely corrosive environment are also disclosed.

Abstract: A fire blanket assembly includes a thermal insulation material defining an opening, a metallic foil layer positioned along a first surface of the thermal insulation material and over at least a portion of the opening, an insert disc positioned adjacent to a second surface of the thermal insulation material opposite the first surface and further being positioned at the opening in the thermal insulation material, and a detail. The detail includes a base positioned at least partially within the opening in the thermal insulation material, a sidewall extending from the base, and a flange extending from the sidewall at a location spaced from the base, a perimeter of the flange turned at least partially away from the metallic foil layer.

Abstract: The invention relates to a device for exerting a compressive force on soil around the root ball of a plant for compacting the soil. The device has a substantially planar head having a pair of arms that are configured to extend over at least a portion of the soil above the root ball of the plant for exerting a compressive force on a portion of the soil. The device also has a handle fixedly attached to the head that is configured to transfer force to the head when a user exerts a compressive force to the handle, thereby compacting soil positioned beneath the head.

Abstract: A power tool, in particular a hand-held power tool, preferably embodied as a cordless screwdriver, is equipped with a torque limiting unit in which the release torque is settable by way of a locking brace that is equipped with a spring brace for locking elements that abut axially against parts of a planetary drive, in particular the ring gear thereof or the planet carrier thereof as a last gear stage, the spring elements of the spring brace and the locking elements being located with a radial offset from one another.

Abstract: A surgical instrument including an end effector that has a selectively reciprocatable implement movably supported therein. The implement is selectively advanceable in a distal direction upon application of a rotary actuation motion thereto and retractable in a proximal direction upon application of a rotary retraction motion thereto. An elongate shaft assembly is coupled to the end effector and is configured to transmit the rotary actuation motion and rotary retraction motion to the reciprocatable implement from a robotic system that is configured to generate the rotary actuation motion and said rotary retraction motion.

Abstract: A hammer mechanism is described as having a snap die, a tool chuck drive shaft, and an impact generating shutoff unit, which has a blocking element, which is provided for the purpose of preventing an axial displacement of the snap die. The blocking element acts on the snap die in parallel to at least one force of the tool chuck drive shaft, at least during a drilling operation.

Abstract: A handheld power tool, including a tool socket on a drive shaft for purposes of holding a tool, the drive shaft executing a rotating and partially tangentially striking movement using a tangential striking mechanism drivable by a drive. The tangential striking mechanism has an anvil associated with the drive shaft and a hammer associated with the drive, movable with respect to each other so as to strike each other axially when under the effect of the force of at least one first spring, and to strike each other tangentially when the anvil and the hammer are rotated. The hammer has a main mass, and an extra mass that is under the effect of a second spring couplable to the main mass.

Abstract: A multi-function power tool includes a motor, a control circuit, a variable speed gear box, a transmission unit, a bow member, and a module. The control circuit is connected to an input end of the motor. A rotating end of the motor is connected to an input end of the variable speed gear box. An output end of the variable speed gear box is connected to the transmission unit. One end of the bow member is mounted on the transmission unit. The module is sandwiched between another end of the bow member and the transmission unit. The transmission unit is a ball screw structure. The power tool has a simple structure and a low cost. The ball screw structure can greatly improve mechanical efficiency and save energy consumption. The module for machining a workpiece may be changed to realize punching, shearing, and pressure jointing functions accordingly.

Abstract: An object of the present invention is to provide an electrical junction box having a new structure that is formed by using a plurality of bushes in the same mold in correspondence with different kinds of casing body and can be readily and rapidly recognized whether or not the electrical junction box is formed by the regular bushes. Casing bodies are provided with common molding portions that are formed by the same mold, and a plurality of bush molding portions that are formed by exchangeable bushes with the same mold in correspondence with kinds of box bodies. Common identification marks corresponding to the kinds of box bodies are formed on the bush molding portions by the bushes.

Abstract: An electrical box includes a top side wall, a right side wall, a bottom side wall, a left side wall, and a rear side wall, At least one check valve is disposed through at least one of the top side wall, the right side wall, the bottom side wall, the left side wall, or the rear side wall. The check valve defines a central opening through which insulation may be introduced to fill an air gap at least one of behind or around the electrical box. The check valve includes a plurality of flexible fingers extending inwardly from the wall to a predetermined location to define the central opening. The flexible fingers are separated from one another by gaps. The flexible fingers are integrally formed with the wall.

Abstract: A method for assembling an electrical connection box. The method may include the steps of selecting a connection box having at least one receiver, selecting an assembly comprising an electrical fixture and at least one anchor, and securing the assembly to the connection box by inserting the at least one anchor within the first receiver. The at least one receiver may include a first engagement mechanism designed to engage a second engagement mechanism included as part of the at least one anchor.

Abstract: The present disclosure provides a composition which includes a thermoplastic elastomer and a flame retardant composed of a metal hydrate and an oligomeric phosphate ester. The weight ratio of metal hydrate to oligomeric phosphate ester is greater than 1.45:1. The composition may be a component of an article such as a coated wire or a coated cable, with the composition present in the coating.

Abstract: In a flexible circuit board, signal wirings and ground wirings are provided on one main surface of a base film formed of a thermoset resin. A coverlay film formed of a thermoplastic resin is adhered to and integrated with the signal wirings, ground wirings, and base film. External terminals 15 are disposed in a predetermined conductor pattern on one main surface of the coverlay film, and a plated layer is formed on each of the external terminals. A first ground layer and a rear side resin film are adhered in this order below the base film to be integrated.

Abstract: Circuit boards having a polymer substrate, a first electrode and a second electrode disposed on a surface of the polymer substrate, and at least one nanostructure electrically connected to the first and second electrodes are generally disclosed.

Abstract: In a multilayer wiring board 1, a low resistance silicon substrate 2 having a predetermined resistivity and a high resistance silicon substrate 4 having a resistivity higher than the predetermined resistivity are stacked while interposing an insulating layer 3 therebetween. The low resistance silicon substrate 2 is provided with an electric passage part 6 surrounded by a ring-shaped groove 5, while a wiring film 13 electrically connected to the electric passage part 6 through an opening 8 of the insulating layer 3 is disposed on a rear face 4b of the high resistance silicon substrate 4 and an inner face 11a of a recess 11. Since the high resistance silicon substrate 4 is thus provided with the wiring film 13, an optical semiconductor element 20 and an electronic circuit element 30 which differ from each other in terms of the number and positions of electrode pads can be electrically connected to each other on the front and rear face sides of the multilayer wiring board 1.

Abstract: A printed circuit board includes a top layer and a bottom layer. A power supply and an electronic component are located on the top layer. The power supply is connected to the top layer and the bottom layer through a first via. A number of second vias extend through the printed circuit board and are connected to the top layer and the bottom layer. The distance between each second via and the electronic component is the same.

Abstract: A circuit board comprises a substrate; a through hole penetrating the substrate along with a direction of a thickness thereof; and a through hole conductor covering an inner wall of the through hole. The substrate comprises a first fiber layer, a second fiber layer, and a resin layer arranged between the first fiber layer and the second fiber layer. Each of the first fiber layer and the second fiber layer has a plurality of fibers and a resin arranged among the plurality of the fibers. The resin layer contains a resin and doesn't contain a fiber. The inner wall of the through hole, in a cross-section view along with the direction of the thickness of the substrate, comprises a curved depression in the resin layer.

Abstract: Embodiments of the present invention provide a printed wiring board in which solder bumps of a mounted semiconductor chip are less prone to be ruptured. The printed wiring board includes a dielectric layer having a main surface and a connecting pad embedded in the dielectric layer. The connecting pad is shaped like a brimmed hat. That is, the connecting pad includes a plate portion whose diameter is larger than that of a contact portion. The main surface of the contact portion is exposed at the main surface of the dielectric layer. Diameter of the contact portion is substantially the same as diameter of an under bump metal at the semiconductor chip side, when mechanical stress is applied, the stress disperses evenly to both of the connecting pad and the under bump metal, and thus rupture is less prone to occur.