Abstract: Described herein is a modular, adjustable system for distributing fluids to one or more wellbores. The system is readily configured and assembled at a well site, and allows for one portion of the system to be isolated for service or repair while the remainder of the system continues to operate. The system includes a plurality of pump skids having both a distribution junction in fluid communication with inlets to of plurality of pump trucks and an exit junction in fluid communication with outlets of the plurality of pump trucks.

Abstract: A modular, adjustable system for distributing fluids to one or more wellbores includes a plurality of modules that can be arranged at a well site to create an appropriate manifold to enable selective fluid communication between a fluid pumping system and the one or more wellbores. The modules each include a fluid inlet, a fluid outlet and a valve coupled therebetween to selectively permit or restrict fluid flow between the respective fluid inlets and fluid outlets. The modules are configured to be readily maneuvered, coupled and locked to one another at a well site.

Abstract: A wellhead assembly includes a casing head, tubing head, and a production tree mounted on the tubing head. An isolation sleeve is set in a main bore of the wellhead assembly that extends across an interface between the casing and tubing heads so that a portion resides in each. The isolation sleeve is configured so that a fracturing string, and its associated hanger, can be retrieved through the isolation sleeve; which significantly reduces the time and steps required to conduct a fracturing operation in a well. Moreover, the present isolation sleeve can be used without changes to existing casing or tubing heads.

Abstract: The disclosure provides one or more manifolds having manifold portions primarily of fluid conduit and flow components mounted to the manifold portions, such as valves and fluid fittings. The manifold is formed with a uniform bore, so that the manifold portions are the same size along the flow path of the manifold, and the valves and fluid fittings have a bore the same size of the bore of the manifold portions. The uni-bore manifold creates a less turbulent flow path and allows draining of the manifold through one or more valves coupled to an end of the manifold that otherwise can become restricted or plugged with particles entrained in fluids in the manifold.

Abstract: A tubing hanger assembly includes a tubular outer tubing hanger member adapted to land in a bore of a wellhead. A tubular inner tubing hanger member is adapted to be secured to a string of production tubing and has an engaged position in a bore of the outer tubing hanger member. A retaining mechanism selectively allows the inner tubing hanger member to be lowered relative to the outer tubing hanger member, then selectively allowing the inner tubing hanger member to be returned back to the engaged position, to create tension in the string of production tubing. The retaining mechanism operates in response to rotational movement of the inner tubing hanger member while the outer tubing hanger member remains stationary with the wellhead.

Abstract: Shrinkage compensated seal assemblies and methods of compensating for shrinkage of a seal due to temperature variations, are provided. According to an exemplary shrinkage compensated seal assembly, the assembly includes a seal, a first compression member for engaging the upper surface of the seal, a second compression member for engaging the lower surface of the seal, and a plurality of pin members each having an elongate body and a head portion. The elongate body of each separate one of the plurality of pin members slidably extends through a different one of a plurality of sets of apertures in the first compression member, the seal, and the second compression member to provide for maintaining a substantially constant pressure on the seal at given pressure under varying temperature conditions that result in variations in the volume size of the seal.

Abstract: A method of completing a well includes Lowering a wellhead onto a base al as upper end of the well. A hub with internal threads and an external circumferential stepped recess is secured to external threads of the wellhead. A blowout preventer assembly with an annular locking member having a plurality of locking demerits is landed on the hub, and the looking elements are engaged with the recess of the hub. The well is drilled through the blowout preventer assembly to a greater depth then the blowout preventer assembly and the hub are removed. A threaded flange with & plurality of bolt holes spaced around die flange is secured to the external threads of the wellhead and a wellhead member is bolted to the bolt holes of the threaded flange.

Abstract: The disclosure provides a collection block that aggregates multiple incoming flow lines and provides a consolidated outgoing flow path. The collection block can be remote from a given well that is being fractured to minimize safety risk in operations around the well. The collection block has dual capabilities of being connected to individual incoming flow lines as well as to manifold systems for distributing the out flowing fluids. The one or more inlets can be formed in the collection block at an offset to a centerline of a longitudinal bore through the collection block. In some to embodiments, frac trucks can connect along an extended connection zone that provides the fluids from the truck to the collection block.

Abstract: A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. An isolation sleeve is included with the fracturing system that couples to the fracturing spool and extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A seal is between the isolation sleeve and bore of the wellhead assembly, which is threaded to the isolation sleeve. Manipulating the threaded connection between the isolation sleeve and seal selectively positions the isolation sleeve to designated axial positions within the wellhead assembly.

Abstract: A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. The fracturing system includes an isolation sleeve and fracturing spool. The isolation sleeve inserts in an axial bore of the fracturing spool, and has a lower end that extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A groove in an inner surface of the fracturing spool receives an annular seal for sealing between the isolation sleeve and fracturing spool. Injecting a viscous fluid into the groove energizes the seal, and blocks high pressure fracturing fluid from flowing between the isolation sleeve and fracturing spool.

Abstract: Described herein is a modular, adjustable system for distributing fluids to one or more wellbores. The system is readily configured and assembled at a well site, and allows for one portion of the system to be isolated for service or repair while the remainder of the system continues to operate. The system includes a plurality of pump skids having both a distribution junction in fluid communication with inlets to of plurality of pump trucks and an exit junction in fluid communication with outlets of the plurality of pump trucks.

Abstract: A connector to secure a blow out preventer to a casing head of a well or wellhead or other tubing and a method of securing a blow out preventer to the well tubing utilizing the connector. The connector may be configured to secure the blow out preventer adapter to the well tubing and provide, within fifteen minutes, a seal operable to withstand ten thousand pounds per square inch of pressure. The connector may include both a hydraulically operated locking segment and a separate mechanical locking segment, and wherein both locking segments may be transitioned from a fully retracted position to a fully locked position within fifteen minutes. The connector may be configured to accommodate up to ten degrees of misalignment between the blow out preventer and the tubing.

Abstract: The disclosure provides a goat head, as a mixing block, for multiple fluids in oilfield applications, the goat head having a reversing directional flow, mixing portion, wear reduction surfaces, and restricted outlet bore. The goat head provides an underneath approach for piping, reducing the overall height, and mixes the fluids dynamically within the goat head from angled flow paths. The goat head then reverses at least a component of the fluid flow direction that enters the wellbore below the goat head and exits the goat head into the well therebelow. The goat head to contains hardened wear surfaces, including surfaces in specific zones, to resist erosion caused by the reversing directional flow. A restricted outlet bore has a cross-sectional area that is less than the sum of cross-sectional areas of the inlets to assist in creating higher velocity and streamlined flow as the fluid exits the goat head.

Abstract: The disclosure provides an adjustable modular skid system with a plurality of skid modules having a frame to support oil field fluid components, such as manifolds, mixing blocks, collection blocks, fracturing pumps, piping and connections, and other devices used to transport water, sand slurries, gas, oil, or other fluids in oil field applications. The modules can be arranged in multiple configuration to fit a particular well site. The modules can include supply modules, transition modules, and distribution modules. The skid modules can be coupled together through piping and relevant connections at the well site. If appropriate, the skid modules can be supported on pilings or other foundational supports. The system can be assembled remotely, started and tested, partially disassembled into the skid modules, and then installed at the well site with minimal additional effort by generally providing lines and connections between the modules.

Abstract: The disclosure provides an adjustable modular skid system with a plurality of skid modules to support oil field fluid components, such as manifolds, mixing blocks, collection blocks, fracturing pumps, piping and connections, and other devices used to transport water, sand slurries, gas, oil, or other fluids in oil field applications. The skid system has vibration adjusting features. The skid modules can be coupled together through piping and relevant connections at the well site. If appropriate, the skid modules can be supported on pilings or other foundational supports. The system can be assembled remotely, started and tested, partially disassembled into the skid modules, and then installed at the well site with minimal additional effort by generally providing lines and connections between the modules. Excessive vibrations in the system can be reduced by adjusting an overall stiffness of the system to change a natural frequency of the system.

Abstract: The disclosure provides an adjustable modular skid system with a plurality of skid modules to support oil field fluid components, such as manifolds, mixing blocks, collection blocks, fracturing pumps, piping and connections, and other devices used to transport water, sand slurries, gas, oil, or other fluids in oil field applications. The skid system has vibration adjusting features. The skid modules can be coupled together through piping and relevant connections at the well site. If appropriate, the skid modules can be supported on pilings or other foundational supports. The system can be assembled remotely, started and tested, partially disassembled into the skid modules, and then installed at the well site with minimal additional effort by generally providing lines and connections between the modules. Excessive vibrations in the system can be reduced by adjusting an overall stiffness of the system to change a natural frequency of the system.

Abstract: The disclosure provides an adjustable modular skid system with a plurality of skid modules having a frame to support oil field fluid components, such as manifolds, mixing blocks, collection blocks, fracturing pumps, piping and connections, and other devices used to transport water, sand slurries, gas, oil, or other fluids in oil field applications. The modules can be arranged in multiple configuration to fit a particular well site. The modules can include supply modules, transition modules, and distribution modules. The skid modules can be coupled together through piping and relevant connections at the well site. If appropriate, the skid modules can be supported on pilings or other foundational supports. The system can be assembled remotely, started and tested, partially disassembled into the skid modules, and then installed at the well site with minimal additional effort by generally providing lines and connections between the modules.

Abstract: The disclosure provides one or more manifolds having manifold portions primarily of fluid conduit and flow components mounted to the manifold portions, such as valves and fluid fittings. The manifold is formed with a uniform bore, so that the manifold portions are the same size along the flow path of the manifold, and the valves and fluid fittings have a bore the same size of the bore of the manifold portions. The uni-bore manifold creates a less turbulent flow path and allows draining of the manifold through one or more valves coupled to an end of the manifold that otherwise can to become restricted or plugged with particles entrained in fluids in the manifold.

Abstract: The disclosure provides fittings having one or more inlets and one or more outlets with a target port and a target hub adapted to be coupled to the target port. The target hub is adapted to be removably coupled to the target port at a target coupler and sealingly engage the target port. The target hub includes a protrusion that protrudes into a flow path, where the protrusion includes a target face. A protrusion seal on the periphery of the protrusion sealingly engages a surrounding wall of the target port bore.

Abstract: The disclosure provides a goat head, as a mixing block, for multiple fluids in oilfield applications, the goat head having a reversing directional flow, mixing portion, wear reduction surfaces, and restricted outlet bore. The goat head provides an underneath approach for piping, reducing the overall height, and mixes the fluids dynamically within the goat head from angled flow paths. The goat head then reverses at least a component of the fluid flow direction that enters the wellbore below the goat head and exits the goat head into the well therebelow. The goat head to contains hardened wear surfaces, including surfaces in specific zones, to resist erosion caused by the reversing directional flow. A restricted outlet bore has a cross-sectional area that is less than the sum of cross-sectional areas of the inlets to assist in creating higher velocity and streamlined flow as the fluid exits the goat head.