Abstract:
An underwater thermal connector (20) has mating plug and receptacle units configured for releasable mating engagement to form a sealed thermal connection for transferring heat into or out of subsea equipment housing and pipe lines. The receptacle unit has an inner chamber containing thermally conductive media and having a forward end opening which is sealed in the unmated condition, an outer thermally insulating chamber surrounding the inner chamber, a first thermal contact in the inner chamber, and a thermal conductor or heat pipe communicating with the first thermal contact and extending out of an outer end of the unit. The plug unit has at least one thermal conductor or heat pipe having an outer end and extending forward through a rear manifold and terminating in a thermal contact pin which engages the first thermal contact when the units are in mating engagement.
Abstract:
A system (300) includes a drilling mud cooling apparatus (340) that is adapted to receive a flow of a mixture of drilling materials (390h) from a drilled wellbore (301) during a drilling operation, and to cool the mixture (390h) from a first temperature to a second temperature, wherein the cooled mixture of drilling materials (390c) includes cooled drilling mud (310c) and drill cuttings (307). The disclosed system (300) further includes a shale shaker apparatus (306) that is adapted to receive a flow of the cooled mixture of drilling materials (390c) from the drilling mud cooling apparatus (340) and to separate at least a portion of the drill cuttings (307) from the cooled drilling mud (310c).
Abstract:
The present disclosure relates generally to methods for controlling souring in engineered systems, and more specifically to methods of controlling souring using chemical, physical, and combinatorial treatments of engineered systems to reduce hydrogen sulfide-associated souring in such engineered systems, such as oil reservoirs.
Abstract:
A heat exchanger system is described that includes an inlet and an outlet for a first fluid and a heat exchanger between the inlet and the outlet wherein the first fluid circulates, wherein the heat exchanger comprises at least one deflector to guide the flow of a second fluid. A method is also described to exchange heat between a first and a second fluid using free convection velocity field to create forced convection in the heat exchanger of a heat exchanger system. A method to exchange heat between a first and a second fluid comprising providing a heat exchanger system between the first and the second fluids, said heat exchanger system comprising a heat exchanger wherein the first fluid circulates and increasing the flow turbulences of a second fluid around the heat exchanger.
Abstract:
An underwater assembly includes a flow control device and an actuator coupled to the flow control device, where the actuator is configured to actuate the flow control device. The underwater assembly further includes an insulated housing surrounding the flow control device and the actuator, where the insulated housing is configured to retain heat. The underwater assembly also includes a thermal control system comprising a heat exchanger configured to control a temperature of the actuator.
Abstract:
A method of maintaining a desired temperature at a location in a well can include adjusting fluid circulation parameters, thereby reducing a difference between an actual temperature at the location and the desired temperature. A well system can include at least one sensor, an output of the sensor being used for determining a temperature at a location in a well, and a hydraulics model which determines a desired change in fluid circulation through the well, in response to the temperature at the location being different from a desired temperature at the location. Another method of maintaining a desired temperature at a location in a well can include adjusting a density, solids content and/or flow rate of a fluid circulated through the well, thereby urging a temperature at the location toward the desired temperature.
Abstract:
Subsea apparatus for processing a well stream and a method of processing a well stream subsea is described. In an embodiment, liquid and gas contained in the well stream is separated. The separated gas is cooled and the cooled gas is combined with the separated liquid to form a wet gas for a compressor. An active cooling arrangement may be used in one example to enhance the cooling effect provided by the cooler. Advantageously, the apparatus can be arranged compactly, and may be provided on a subsea retrievable module.
Abstract:
A method to dissipate heat build-up in a structural component is disclosed. In one embodiment, the structural component is a composite pipe for carrying a hot fluid, e.g., petroleum products. The method comprises providing a protective sheath disposed around the structural component and forming an air space between the structural component and the sheath. The sheath has at least two gaps on its surface, with the gaps being sufficiently spaced apart to allow air flowing through the air space from one gap to another to dissipate heat build-up from the hot fluid contained within the structural component. In one embodiment, an intumescent material is applied near the gaps, which material expands when heated to a temperature in a fire to effectively close the gaps and protect the structural component from the fire.
Abstract:
A method and apparatus for regulating a temperature of a device in a tool used in a wellbore is disclosed. The device generally includes a substrate and a heat source associated with the substrate that induces heat into the substrate. The substrate includes a fluid channel therein. A fluid system provides the fluid into the fluid channel and out of the fluid channel to control the temperature of the component.
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Förderung von einer kohlenwasserstoffhaltigen Substanz, insbesondere Bitumen oder Schwerstöl, aus einem Reservoir (100), wobei das Reservoir (100) mit Wärmeenergie zur Verringerung der Viskosität der Substanz beaufschlagt wird, wozu mindestens zwei Leiterschleifen (1, 2,..., 8) zur induktiven Bestromung als elektrische/elektromagnetische Heizung vorgesehen sind. Eine jeweilige der mindestens zwei Leiterschleifen (1, 2,..., 8) umfasst wenigstens zwei ausgedehnte Leiter (1, 2,..., 8), die zumindest abschnittsweise parallel in horizontaler Ausrichtung innerhalb des Reservoirs (100) geführt sind. Weiterhin sind mindestens zwei Wechselstromgeneratoren (60; 60', 60'', 60''', 60'''') für elektrische Leistung vorgesehen, die jeweils an eine jeweilige der Leiterschleifen (1, 2,..., 8) angeschlossen sind, wobei ein erster der mindestens zwei Wechselstromgeneratoren (60; 60', 60'', 60''', 60'''') und mindestens ein zweiter der mindestens zwei Wechselstromgeneratoren (60; 60', 60'', 60''', 60'''') bezüglich ihrer Frequenz synchron zueinander und mit fester Phasenlage zueinander betrieben werden.