Abstract: The present techniques are directed to a combustor for a gas turbine. For example, an embodiment provides a spool piece for the combustor. The spool piece includes an oxidant injection port configured for injection of an oxidant proximate to a flame in the combustor and a recycle-gas extraction port configured for an extraction of a recycle gas from the combustor, wherein the recycle gas is isolated from the oxidant prior to the use of the oxidant in a flame.

Abstract: A suction caisson system comprising a caisson body comprising an upper rim, a lower rim, and a weakened section positioned between the upper rim and the lower rim. The system further comprises a caisson cover constructed and arranged to detachably connect to the upper rim of the caisson body as well as a pump constructed and arranged to provide fluid to and from the interior of the caisson body. In the event the caisson body is impacted by an advancing ice keel, or other foreign object, the caisson body will be sheared at the weakened cross-section, thus protecting any subsea equipment positioned within the caisson body below the weakened section.

Abstract: A method for pyrolyzing organic matter in a subterranean formation includes powering a first generation in situ resistive heating element within an aggregate electrically conductive zone at least partially in a first region of the subterranean formation by transmitting an electrical current between a first electrode pair in electrical contact with the first generation in situ resistive heating element to pyrolyze a second region of the subterranean formation, adjacent the first region, to expand the aggregate electrically conductive zone into the second region, wherein the expanding creates a second generation in situ resistive heating element within the second region and powering the second generation in situ resistive heating element by transmitting an electrical current between a second electrode pair in electrical contact with the second generation in situ resistive heating element to generate heat with the second generation in situ resistive heating element within the second region.

Abstract: An apparatus including: a tubular suction pile; an indenter housing that surrounds the tubular suction pile, wherein the indenter housing is configured to: (a) be sunk into a seabed in response to a negative pressure created from water being removed from the tubular suction pile, and the indenter housing is configured to create a trench in the seabed; and comprise a water jetting device, within the indenter housing, that includes a first valve, a nozzle, and a channel that connects the first valve to the nozzle; and/or (b) impart a longitudinal vibration to the indenter housing and the indenter housing is configured to be sunk into a seabed in response to longitudinal vibration, and the indenter housing is configured to create a trench in the seabed.

Abstract: Method for evaluating cement integrity in a cased well environment using a logging tool that has a neutron source and one or more neutron or gamma ray detectors. Neutron porosity logs are obtained from the well before (42) and after (41) casing. This log data along with well dimensions and material composition parameters are the input quantities to a multi-parameter database (43) that is constructed by computer modeling or laboratory experiments to relate volume fraction for fluid filled channels in the cement sheath to the input quantities. The channel volume fraction (45) corresponding to the input quantities is identified or interpolated (44) from the multi-parameter database.

Abstract: Method for correcting OBC or deep-towed seismic streamer data for surface-related multiple reflections. The measured pressure data, preferably after conditioning (71), are simulated using a forward model that includes a water propagation operator between source locations and receiver locations and a term representing primary impulse responses (72). Other terms include direct arrivals and source wavelets. Iterative optimization of an objective function is used to minimize the difference between measured and simulated data, updating the primary impulse response term and optionally the source wavelets term each iteration cycle (73). The converged primary impulses (74) are used to construct simulated multiples and direct arrivals (75), which can be subtracted from the measured data. Optionally the measured data might be blended during the forward simulation (72), to save computational costs in the forward simulation (72) and in the inversion (73).

Abstract: A system and method for separation of liquids and gases within a multiphase fluid are provided herein. The method includes flowing a multiphase fluid into a number of divisions within a multiphase separation system, wherein the divisions are configured to lower a velocity of the multiphase fluid. The method also includes separating the multiphase fluid among a number of lower pipes and a number of upper pipes, wherein each lower pipe includes an expansion zone configured to lower a pressure within the lower pipe to allow entrained liquids to drain from a corresponding upper pipe via a downcomer.

Abstract: A method for modeling a dynamic system (e.g., geological system) comprises: constructing an input parameter space for a model of the geological system, the input parameter space including more than three dimensions, and the model associated with response data, representing the input parameter space visually with three or fewer dimensions, reducing the input parameter space by conditioning the parameter space using at least a subset of the response data, and updating the representation of the input parameter space to visually represent the reduction of the parameter space.

Abstract: A method and apparatus for transporting LNG are provided. A storage container is disclosed including a support frame fixedly attached to at least one top panel, at least one bottom assembly, and a plurality of corrugated side panels, wherein the support frame is externally disposed around the storage container; wherein the support frame is configured to operably engage at least a portion of a hull of a marine vessel; and wherein the storage container is an enclosed, liquid-tight, self-supporting storage container. A method of manufacturing the storage container is also provided.

Abstract: A method of organizing a first group of domain objects relating to hydrocarbon management is disclosed. User-defined logic conditions are established. A plurality of the domain objects in the first group of domain objects are selected. It is determined whether any of the selected plurality of domain objects satisfies the logic conditions. A second group of domain objects is created that includes the logic conditions and a list of the domain objects satisfying the logic conditions. An operation command is performed on the second group of domain objects such that the operation command is performed on all domain objects listed in the second group of domain objects.

Abstract: Method for segmenting a geophysical data volume such as a seismic data volume (10) for ranking, prioritization, visualization or other analysis of subsurface structure. The method takes any initial segmentation (11) of the data volume, and progressively reduces the number of segments by pair combination (13) so that an optimal stage of combination may be determined and used for analysis (15).

Abstract: Method for automatically determining a planar event such as a bedding plane from azimuthal wellbore log data (501). The image log may optionally first be filtered using a smoothing filter (502). Then, the image log is inputted to a gradient (first-derivative) filter (503). The image log is also used to find the optimal local sinusoidal trend (or orientation) on the image by determining the best sine wave at each depth among all azimuthal curves from the image using a minimum-variance method (504). Finally, bed boundaries are located based on highest contrast (506) calculated along the sinusoidal lines on the gradient image (505).

Abstract: The current disclosure relates to multiphase fluid separation via a multiphase separation system. The multiphase separation system is configured to feed a multiphase fluid into an inlet line within the separation system. The multiphase fluid is configured to flow through a divide and be split into separate lines of similar diameter. A control volume is also connected at the end of the separate lines, and the control volume has a diameter greater than the separate lines of similar diameter. The control volume includes outlet lines, and is configured to adjust fluid flow rate at an outlet line. Also included in the current disclosure is a sand boot connected to the separate lines that is oriented vertically with respect to the separate lines, and is configured to collect and remove sand accumulated in the multiphase separation system.

Abstract: Provided are encased parallel channel adsorbent contactor apparatus and systems and swing adsorption processes related thereto. Encased parallel channel adsorbent contactors are useful in swing adsorption processes. A plurality of the encased adsorbent contactors are loaded and sealed together in a swing adsorption vessel such that substantially an entire feed stream must pass through the channels of the contactors and not through stray gaseous stream paths between contactors.

Abstract: Methods and systems for improving recovery from a subsurface hydrocarbon reservoir are described. A method includes drilling a horizontal well in a zone proximate to a contiguous section of cap rock over a reservoir interval. A refrigerant is flowed through the horizontal well to freeze water in the zone, forming a freeze wall in contact with the contiguous section of cap rock. A chamber is formed above the reservoir interval, wherein the chamber includes the contiguous section of cap rock and at least one freeze wall.

Abstract: Provided are apparatus and systems having a rotary valve assembly integrated with a reciprocating valve assembly to perform swing adsorption processes. The rotary valve assembly is utilized with the reciprocating valve assembly to manage the flow of streams through the system in an enhanced manner.

Abstract: A method of controlling a power plant that comprises a working fluid and a recirculation loop, wherein the power plant includes a combustor operably connected to a turbine, the method including the steps of: recirculating at least a portion of the working fluid through the recirculation loop; controlling the power plant such that the combustor at least periodically operates at a preferred stoichiometric ratio; and extracting the working fluid from at least one of a first extraction point and a second extraction point positioned on the recirculation loop during the periods when the combustor operates at the preferred stoichiometric ratio.

Abstract: Systems and methods for an oxy-fuel type combustion reaction are provided. In one or more embodiments, a combustion system can include at least two mixing zones, where a first mixing zone at least partially mixes oxygen and carbon dioxide to produce a first mixture and a second mixing zone at least partially mixes the first mixture with a fuel to produce a second mixture. The combustion system can also include a combustion zone configured to combust the second mixture to produce a combustion product. In one or more embodiments, the first mixture can have a spatially varied ratio of oxygen-to-carbon dioxide configured to generate a hot zone in the combustion zone to increase flame stability in the combustion zone.

Abstract: There is provided a device and method for high speed hydraulic actuation. The method includes adjusting a position of an actuator using a hydraulic pressure regulator. Adjusting the position of the actuator includes increasing pressure on the hydraulic pressure regulator to open the actuator using a first solenoid, or decreasing pressure on the hydraulic pressure regulator to close the actuator using a second solenoid.

Abstract: The disclosure concerns methods for heating a subsurface formation using an electrical resistance heater. Preferably, the subsurface formation is an organic-rich rock formation, including, for example, an oil shale formation. The method may include providing an electrically conductive first member in a wellbore in a subsurface fornation, an electrically conductive second member in the wellbore, and an electrically conductive granular material in the wellbore. The granular material is positioned so as to provide an electrical connection between the first member and the second member. An electrical current is established across the first member, the granular material and the second member so as to generate resistive heat within the granular material. The surrounding subsurface formation is thereby conductively heated so as to cause formation hydrocarbons in the formation to be heated, and in some cases, pyrolyzed to form hydrocarbon fluids.