Schlumberger Technology Corporation

Jared M Mangum

Kenneth John Stoddard

Cameron Andersen

Joseph P Varkey

Garth L Mason

Sheng Chang

Julien Toniolo

Qingdi Huang

Montie Wayne Morrison

Tyson R Messick

Mathew Varghese

Gregory Au

Daniel Hogan

Ramadan Mansour

Mason L Garth

Antonio Mauricio Cevallos Navarrete

Embodiments presented provide for a sealed connector for use in high gas pressure applications. The sealed connector may provide for electrical signals and power to be transmitted along a cable to a downhole apparatus, such as those used in hydrocarbon recovery operations. The sealed connector includes a body having a first body portion and a second body portion, where the first body portion includes an interior cavity having a connection portion and a sealing surface, and the second body portion is comprised of an elastomer having a bore. The elastomer of the second body portion is bonded to the first body portion, and an insert is disposed within the body. A wire is configured to extend through the bore of the second body portion, the elastomer of the second body portion seals against the wire, and the wire is coupled to the insert.

Single conductor sealed connector for high pressure gas pressure applications

Wireline plugs for use in a Y-tool. In some embodiments, the wireline plug can include an elongated body defining a bore therethrough. A first end of the elongated body can include an outer surface configured to serve as a fishing neck and a second end configured to connect to a downhole tool. The wireline plug can include an elongated seal defining a bore therethrough disposed within a portion of the bore defined by the elongated body. The elongated seal can be configured to provide an at least partial fluid seal between an inner surface of the bore defined by the elongated body and an outer surface of a wireline when disposed within the bore defined by the elongated seal. The elongated seal can be formed from a polymer, an elastomer, or a combination of a polymer and an elastomer.

Wireline plugs for use in a Y-tool

Packoff seals and processes for using same. In some examples, the packoff seal can include a first end cap and a second end cap, a first insert and a second insert, a first deformable element disposed between the first end cap and the first insert, a second deformable element disposed between the second insert and the second end cap, and a third deformable element disposed between the first insert and the second insert. The first end cap, the first deformable element, the first insert, the third deformable element, the second insert, the second deformable element, and the second end cap together can form a body having a bore extending therethrough. The first deformable element, the second deformable element, and the third deformable element can have a compressive strength that is less than a compressive strength of the first and second inserts.

Packoff seals and processes for using same

A power cable termination assembly can include a cable end; a connector end; a longitudinal axis that extends between the cable end and the connector end; a cable securing mechanism; a dielectric material space that includes a volume where the dielectric material space is disposed axially at least in part between the cable securing mechanism and the connector end; and a movable component that moves responsive to a pressure differential where movement of the movable component alters the volume of the dielectric material space.

Electric submersible pump power cable termination assembly

A technique facilitates rigless deployment of a pumping system, e.g. an electric submersible pumping system, to a desired downhole location. The pumping system is coupled to an electrical cable which is routed through an injector head. The pumping system is supported on the electrical cable and conveyed downhole to the desired position in a wellbore via the injection head. The system and methodology enable deployment of the electrical cable directly through the injector head without coiled tubing.

Pumping system deployment using cable

In one possible implementation, a misalignment-tolerant hydraulic actuator, e.g., for a submersible hydraulic diaphragm insert pump (HDI), has a floating piston that can reciprocate while decoupled from collinearity with a cylinder barrel and a central feed rod that slides through a central axis of the piston. The floating seal can be integrated or provided by a separate insert and provides a pivotable interface between the piston and center rod, allowing these components freedom of motion to avoid elastic deformation, friction, power loss, and early wear when misalignment or transverse forces on an external end of the piston rod are present. Bearing placement can also be selected to eliminate over-constraint.

Adaptive hydraulic cylinder with floating seal interface

Low profile valves are described. In an embodiment, a tubular member for fluid transport has a valve constructed within a wall of the tubular member for controlling a radial flow of fluid, such as water, oil, or gas, through the wall without impeding the flow of fluid or tools through the tubular member or near the exterior of the tubular member. The low profile valve may be used, for example, in the oil and gas industries as a pressure relief valve or check valve. When used as a pressure relief valve, a load member such as a spring, strap, or rocker arm maintains a backpressure on the valve. Example low profile valves can provide flow control from within a very thin annulus between other components.

Low profile valves

A reciprocating pump with chamber-charging mechanism is provided. In an example diaphragm pump, a discharge valve can be opened by the pressure of fluid leaving the pump and can also be opened by an intermittent mechanical linkage actuated by the reciprocating member powering the pump. The discharge valve is mechanically opened to allow pressure backflow into the pumping chamber, thereby charging compressible fluid mixtures and gases with an increase in pressure. The increased pressure enables the compressible fluids to open the discharge valve on the next compression stroke and exit the pump. In an implementation, the discharge valve is pushed open by the reciprocating power source in a configuration that seals the valve mechanism from well fluid. In another implementation, the discharge valve is pulled open to pre-charge the pumping chamber.

Pre-charging pump chamber by preemptively opening a valve

A two-step hydraulic valve is described. In an implementation, a two-step hydraulic valve with retrograde spool action has a pilot spool that controls hydraulic force applied to a main spool to switch a rod of a hydraulic actuator back-and-forth between extension and retraction. The main spool is hydraulically driven in retrograde motion to the pilot spool, providing improved reliability and switching action for the valve. The pilot spool also has an overtravel feature that can be used to hyperextend the rod for various purposes. In an example system, the two-step hydraulic valve controls a hydraulic actuator connected to drive a submersible reciprocating pump, such as a diaphragm pump.

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Lehi, UT, United States of America

Jared M Mangum