摘要:
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.
摘要:
Sub-sea processing system for the production of oil and/or gas from one or more production wells (1), especially wells producing heavy oil on deep water and with high viscosity. The system includes, beyond the production well/s (1), one or more injection wells (2) for the injection of produced water, a separator (3), a production pump (4), a water injection and circulation pump (5) and a heating arrangement (6). A water circulation and injection pipe loop (7) is provided to interconnect the separator (3), the injection and circulation pump (5), the heating arrangement (6), the flow control device (11) and the wells (1, 2) enabling circulation of heated water to the wells (1,2) via the separator (3) and heating arrangement (6).
摘要:
The invention relates to a device for heating and thermally insulating at least one main undersea pipeline (1a) for the circulation of a warm flow comprising a heat insulation coating (2) which wraps one or several main pipelines (1a) and is covered with an external waterproof jacket (3) and an internal chamber (4) which is coaxially arranged with respect to said jacket (3). The insulating coating wraps the internal chamber (4) in the annular space between said external jacket (3) and the internal chamber (4). The main pipeline (1a) extends inside the internal chamber (4) which is embodied, preferably, in the form of a cylinder. The inventive device also comprises means (61) for maintaining the temperature of a liquid coolant (5) and for circulating said coolant inside the internal chamber in such a way that the main pipeline (1a) which is arranged in the chamber (4) is surrounded by the coolant (5).
摘要:
Gas hydrates in subsea or subterranean wells, in the equipment associated with the wells and in subterranean reservoirs containing gas hydrates, are decomposed by contact with a hot salt solution made by mixing an acidic liquid and a basic liquid which chemically react exothermically. The released natural gas, water and salt solution can be recovered.
摘要:
Für eine Dampfleitung, die in einem Bohrloch bis zu einer Erdöllagerstätte geführt ist, wird ein Abdichtsystem angegeben. Die Dampfleitung (2) dient zum Einführen von Dampf in die Erdölschicht (1) und verläuft ausgehend von einen Dampferzeuger (3) in einem verrohrten Bohrloch bis zur Erdöllagerstätte. Um die Dampfleitung auf der Sohle des Bohrlochs gegenüber dem Bohrlochraum gasdicht verschließen zu können, weist der Rohrboden (7) eine konisch geformte Stützfläche (6) auf, durch deren offene Kegelspitze die Dampfleitung in die Erdölschicht mündet. Die Dampfleitung (2) stützt sich auf der Stützfläche (6) ab. Hierzu ist die Dampfleitung durch einen Dampferzeugerboden (5) hindurchgeführt, der der konischen Stützfläche (6) entsprechend geformt ist. Zwischen Dampferzeugerboden und Stützfläche ist eine Dichtung (8) eingelegt, die vom Gewicht des Dampferzeugers (3) gegen die konische Stützfläche (6) gepreßt wird.
摘要:
@ A downhole tool for use in recovering a first fluid from a mixture of fluids in a confined space, comprising a collector for the mixture, separator means for receiving the mixture from the collector and for separating the first fluid from the mixture, means for expanding the volume of the residual fluid of the mixture, and means for feeding the expanded fluid into the confined space thereby to provide sufficient pressure within the confined space to force uncollected mixture into the collector and thence to the separator means.