Abstract: A device determines the specific gravity of a wellbore fluid flowing into a submersible pump. The specific gravity of the wellbore fluid is determined by measuring the pressure increase across at least two pump stages and then using fluid flow properties and known pump characteristics to back calculate the specific gravity of the wellbore fluid.

Abstract: An equalizing injection wash tool includes a plurality of interconnectable wash tool segments. Each of the segments provides a flow applicator nozzle for transmitting fluid/and or solid from the interior flowbore of the wash tool and into the surrounding formation. Each segment preferably features a plurality of nozzle pipes and nozzles which are oriented about the cross-sectional circumference of the segment in an angularly spaced orientation to provide for a flow pattern that is substantially equalized in an angular manner. In a preferred embodiment, the nozzle pipes have a length that extends into the flowbore of a neighboring wash tool segment.

Abstract: A tool for boring has an axle for drivingly linking at a first end to a portable rotatable machine. At a second end, the axle has a shaft-receiving bore into which a nose shaft is inserted. The nose has a cutting tip and a flight cutter that aligns with a flight on the axle. An insulator is electrically interposed between the cutting tip and the nose shaft, thereby electrically insulating the nose shaft from the cutting tip. The flight cutter performs the high-wear cutting at the leading edge of the flight, thereby causing the flight to merely remove the soil or other particulate from the hole being formed.

Abstract: A flow control valve for use inside a wellbore. In one implementation, the flow control valve may include a housing, a chamber disposed inside the housing and an entry port disposed at a first end of the chamber. The entry port may be configured to allow fluid to enter into the chamber. The flow control valve may further include an exit port disposed at a second end of the chamber. The second end may be opposite of the first end and the exit port is configured to allow fluid to flow out of the chamber. The flow control valve may further include a check valve assembly disposed between the entry port and the exit port. The check valve may be configured to allow fluid to flow from the entry port to the exit port and to prevent fluid to flow from the exit port to the entry port.

Abstract: A modular steam injection line, for use in steam assisted gravity drainage (SAGD) operations for delivery of an equal steam mass flow along a length of the apparatus, incorporates steam splitter modules fluidly connected for forming the steam injection line. Each of the modular steam splitters is fit with interchangeable nozzles for delivering steam to the formation. The interchangeable nozzles have orifices of different sizes and the nozzle orifice size required for each individual module to deliver an equal mass flow of steam from each module, at sub-sonic rates, along the entire length of the steam injection line.

Abstract: A system for inserting control lines to a control line receptacle at an alternate path structure including an upper guide having a path structure engagement roller, a control line insertion wheel and a control line bypass space. The system further includes a lower guide separate from the upper guide and having a path structure engagement roller and a control line insertion wheel. The path structure engagement roller and control line insertion wheel are resiliently biased to a position to cause control line insertion to the alternate flow path structure when in an engaged position. A method for inserting control lines is included.

Abstract: A flute-wiping auger cleaner has a laterally-shearing shackle, an axial track spaced parallel to the auger; and a traveling carriage on the track for supporting the shackle. The shackle includes a series of angularly-staged wiper blades to project into the flute of the auger and centrally stabilize the blades on the turning axis of the auger. The shackle is biased not only to pressure the wipers inwards towards the auger's cylindrical sidewall but also allow the shackle to open slightly against the force of the bias in event a blade cannot dislodge a difficult clump of fouling material in the flute. In that event, the blade is pushed out and then pressured back in as it rides over the difficult-to-dislodge clump. Spinning the auger causes the blades to travel the length of the helical flute while the shackle travels axially on the track.

Abstract: A wellhead assembly to seal and suspend an in-casing hydraulic drive unit for a downhole pump, including pressure-containing wellhead body members with a vertical bore and a production bore at its uppermost portion. A hydraulic pump hanger is retained and sealed in the vertical bore. The hydraulic pump hanger suspends and seals the hydraulic cylinder, includes a bore extending vertically therethrough, forms at least one hydraulic line to communicate with hydraulic fluid supply lines, forms a hydraulic inlet port to each hydraulic line, and provides a check valve sealed in each hydraulic inlet port. The wellhead body member(s) includes a stem port aligned with each hydraulic inlet port, with a valve actuating stem sealed in each stem port to actuate each check valve between a normally closed and open position. The wellhead body member(s) also includes hydraulic injection port(s) formed to supply hydraulic fluid to each hydraulic inlet port.

Abstract: Disclosed herein is a downhole triggering tool. The tool includes a tool-engaging portion movable from a first position to a second position under the action of an external force, and a release mechanism for selectively permitting movement of the tool-engaging portion from the first position to the second position, the tool-engaging portion is restrained against the external force by the release mechanism through a plurality of force reducing mechanisms.

Abstract: A downhole triggering tool includes a tool-engaging portion movable from a first position to a second position under the action of an external force, and a release mechanism for selectively permitting movement of the tool-engaging portion from the first position to the second position, the tool-engaging portion is restrained against the external force by the release mechanism through a force reducing mechanism.

Abstract: An apparatus for controlling fluid flow between a wellbore tubular and a wellbore annulus includes a passage between a bore of the wellbore tubular and the wellbore annulus. The passage causes cavitations in a flowing fluid made up of mostly water. The cavitations activate a flow control device that controls fluid flow into the wellbore tubular. In one method, the flow control device includes a pressure chamber pressurized by high-pressure fluid associated with the cavitations. The pressure in the pressure chamber actuates a piston assembly coupled to a closure element that restricts fluid flow into the wellbore tubular. Alternatively, a power generator generates an electrical signal in response to the cavitations and transmits the electrical signal to the flow control device. In response to the electrical signal, the flow control element activates one or more devices that move a closure element to restrict fluid flow into the wellbore tubular.

Abstract: An overshot tool for retrieving an object in a well includes a housing having a housing bore with upper and lower portions. A cam having a cam bore is carried in the upper portion of the bore. The housing and the cam are rotatable relative to each other from an aligned position, in which the cam bore axis and the housing bore lower portion axis coincide, to a misaligned position, in which the cam bore axis and the housing bore lower portion axis are misaligned with each other. The housing bore and the cam bore are open at a lower end for sliding over an object in the well when the tool is in the aligned position. Rotation of the housing and the cam relative to each other causes the cam bore axis and the lower portion axis to move toward the misaligned position, thereby gripping the object for retrieval.

Abstract: In one aspect of the invention, a drill bit comprises a steel body disposed intermediate a threaded end and a working face. The steel body comprises a plurality of steel blades disposed along an outer diameter of the body and extending radially away from an axis of rotation of the bit. A plurality of cutter elements is disposed on the plurality of steel blades and the blades each comprise a steel stiffness and a steel elastic modulus. At least one of the plurality of steel blades comprises a stiffening element and an overall stiffness at least 3.5 times greater than the steel stiffness.

Abstract: A wellbore cleanup tool features a flow diverter that comprises a series of bristles mounted on a sleeve that slides on a spiral track on a mandrel. For run in the sleeve is in an upper position with respect to the mandrel and allows flow around the outside of the screen and through passages defined between the sleeve and the mandrel. When coming out of the hole, the sleeve shifts down and the bristles block flow through themselves so as to direct the debris laden fluid under the sleeve that now rests on top of the screen. The defined flow path is under the sleeve and behind the screen leaving the debris trapped and allowing the fluid to pass through the screen without the debris.

Abstract: There is provided a top plunger adapter assembly for use in controlling sand fouling of an oil pump system wherein the oil pump system reciprocates between upstrokes and downstrokes within a barrel, and wherein the oil pump system includes as components a sucker rod and a plunger. In one embodiment, the top plunger adapter assembly includes an adapter having a first end configured to receive a sucker rod, wherein the adapter includes a chamber which allows fluid movement therethrough; a collection cage rotatably mounted to the adapter, the collection cage defining an interior region, and the collection cage having an upper lip configured to direct sand toward the interior region of the collection cage during an upstroke of the pump; and a bottom cage attached to the adapter and the bottom cage having a bottom end configured to attach to a pump plunger, wherein the bottom cage includes a passage to allow fluid communication through the bottom cage to the chamber of the adapter.