Outlet arrangement for down-hole separator
AssigneeKvaerner Oilfield Products
InventorsGunder Homstvedt, Geir Inge Olsen, Bjernar Danielsen
Life of this patent
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Abstract
A method and an arrangement for separating oil and water by means of a two-phase liquid/liquid separator. The oil phase and the water phase respectively are separated over a portion of the length of the separator from an upstream end to a downstream end. The oil phase and the water phase respectively are extracted gradually over a length of the separator, and each of the phases is conducted out of the separator separately. A method and an arrangement for orienting the separator in a well are also described.
Claims19
Method of separating oil and water by means of a two-phase liquid/liquid separator, in which the oil and water phases respectively are separated over at least part of the length of the separator from an upstream end to a downstream end of the separator, characterised in that the oil and water phases respectively are extracted gradually over a length of the separator, the length extending substantially all the way to the downstream end of the separator, and that the oil and water phases, respectively, are extracted synunetrically relative to the longitudinal axis of the separator and that each of the phases is extracted from the separator separately.
An arrangement at a separator for separating oil and water, comprising a separator chamber with an upstream end and a downstream end and an oil outlet and a water outlet, the water outlet being situated in an upper part of the separator chamber and the oil outlet being situated in a lower part of the separator chamber, characterised in that the oil and water outlets respectively are distributed over a length of the separator at the downstream end of this and that the oil and water outlets with respect to each other are arranged symmetrically relative to the longitudinal axis of the separator.
A method of orienting an outlet arrangement in a horizontal downhole separator, characterised in that a guide device is inserted into the hole and fixed relative to the hole, that a measuring tool is inserted into the hole in order to register the orientation of the first guide means on the guide device, that second guide means on the separator, which means correspond to the first guide means, are set in accordance with the orientation of the first guide means, that the separator with the outlet arrangement is inserted into the hole, and that the separator is rotated to a predetermined orientation upon contact between first and second guide means.
An arrangement for orienting an outlet arrangement in a horizontal downhole separator, characterised in that it comprises a guide device having first guide means, that the guide device is equipped with fixing devices for fixing the guide device in a casing in the hole, that the separator comprises second guide means corresponding to the first guide means, so that when the first and second guide means make contact, the separator is rotated to a predetermined orientation.
Dependencies are inferred from the claim text.