摘要:
An apparatus and method for coupling ends of two insulated conductors includes coupling a core of a first insulated conductor to a core of a second insulated conductor. Exposed portions of the cores are located inside a box. Electrically insulating powder material is placed into the box and a force is applied to a plunger to compact the powder material. Additional electrically insulating powder material may placed into the box and a subsequent force applied to compact the powder material into compacted powder material that surrounds the exposed portions of the cores. The compacted powder material is formed into a substantially cylindrical shape. A sleeve is placed over the compacted powder material and coupled to the jackets of the insulated conductors.
摘要:
Oil sand exploitation is enhanced, by using a downhole apparatus comprising a casing (130) for housing a water conduit for receiving water via a water pipe, at least one steam generation chamber mounted to the peripheral surface of the casing and being in fluid communication with said water conduit and having at least one steam outlet, at least one electrical heater, being thermally connected to said steam generation chamber, if the downhole apparatus further comprises at least one crude oil conduit (125) for recovering crude oil, which has been mobilized by said steam.
摘要:
The invention relates to a device and a method for recovering a carbonaceous substance, in particular bitumen or very heavy oil, from a reservoir (6), wherein the reservoir (6) can be subjected to thermal energy for reducing the viscosity of the substance. To this end, at least one conductor loop (10, 11) for the inductive current supply is provided as electric and/or electromagnetic heating. Furthermore, a fluid guide (12) for transporting and introducing a fluid solvent into the reservoir (6) is provided for further reducing the viscosity of the substance.
摘要:
The invention relates to a device and a method for extracting a carbonaceous substance, especially bitumen or extra-heavy oil, from a reservoir (6). Thermal energy can be supplied to the reservoir (6) to reduce the viscosity of the substance. For this purpose, at least one conductor loop (10, 11) is provided as an electric/electromagnetic heater to be inductively supplied with power, a conductor (10) of the conductor loop (10, 11) being surrounded by a liquid-carrying conduit (12) in at least one section and said liquid conduit (12) being perforated so that when liquid is supplied said liquid penetrates into the reservoir (6) from the liquid-carrying conduit (12) via a perforation (21).
摘要:
The invention relates to a device and a method for extracting a carbonaceous substance, especially bitumen or extra-heavy oil, from a reservoir (6). Thermal energy can be supplied to the reservoir (6) to reduce the viscosity of the substance. For this purpose, at least one conductor loop (10, 11) is provided as an electric/electromagnetic heater to be inductively supplied with power, a conductor (10) of the conductor loop (10, 11) being surrounded by a liquid-carrying conduit (12) in at least one section.
摘要:
An array of loop antennas (86, 96) for a heating subsurface formation (10) by emission of RF energy and a method of heating a subsurface formation by an array of subsurface loop antennas is disclosed. The antennas are approximate loops (72) and are positioned in proximity to adjacent loops. The antennas are driven by RF energy.
摘要:
Systems and methods for treating a subsurface formation are described herein. A system for treating a subsurface formation may include a plurality of wellbores in the formation. The system may include at least one heater positioned in at least two of the wellbores. The system may include a self-regulating nuclear reactor. The self-regulating nuclear reactor may function to provide energy to at least one of the heaters to raise the temperature of the formation to temperatures that allow for hydrocarbon production from the formation. A heat input to at least a portion of the formation over time may approximately correlate to a rate of decay of the self-regulating nuclear reactor. A spacing between at least a portion of the plurality of wellbores in the formation may correlate to a rate of decay of the self-regulating nuclear reactor. The self-regulating nuclear reactor may decay at a rate of about 1/E.
摘要:
According to known SAGD methods, an injection pipeline protruding into a deposit and at least one production pipe line leading out of the deposit are provided, superheated steam being applied to said pipelines, both as required, in order to improve the flowability of the extra-heavy oil and/or bitumen in the reservoir. According to prior art, the active region with the injection pipeline is also used for induction heating in relation to the surroundings thereof in the deposit. According to the invention, the conductor and return conductor (5, 5') of the inductor lines (10, 20; 110, 120) are guided essentially vertically in the capping (105) to the bottom of the deposit (100), at a small maximum lateral distance (a) of 10 m compared to the length of the lines, but especially less than 5 m. Preferably, the inductor lines (10, 20; 110, 120) are guided horizontally in the deposit (100) and are at different distances in certain areas. Furthermore, the electrical conductors and return conductors (5, 5') perpendicularly extending in the capping (105) preferably combine to form a conductor pair (5). In this way, the conductor pair (5) can be introduced into a single borehole (12) which reaches into the reservoir (100) and splits only once it has arrived in the reservoir (100).
摘要:
A method including exposing a substance to a first type of electromagnetic waves generated by a first device. The frequency of the first type of electromagnetic waves is in the radio frequency range and the device consumes no more than about 1,000 Watts of power. The exposure takes place for a period of time and at a frequency sufficient to detectably alter at least one physical property of the substance as it existed prior to the exposure.
摘要:
Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing power to one or more subsurface heaters is described herein. The method may include monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and controlling the power output of the transformer so that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source