FIELD: oil and gas industry.
SUBSTANCE: well system contains the upper inclined wedge, positioned in the main wellbore and determining the first and the second channels; the lower inclined wedge, positioned in the main wellbore and apart from the upper inclined wedge on the predetermined distance, at that the lower inclined wedge determines the first casing column, having the predetermined diameter and connected to the lower part of the main bore, and the second casing column, connected to the lateral bore, and a bullnose, containing the housing and the bullnose cap, positioned at the distal end of the housing, at that the bullnose is driven in the interval between default configuration and the actuated configuration. The upper and the lower deflector wedges guide the bullnose into one of the following: the side bore or the lower part of the main bore, based on the length and diameter of the bullnose tip, compared with the predetermined length and the predetermined diameter, respectively.
EFFECT: it is provided the accurate input into one side bore of the multibore well.
21 cl, 13 dwg
Authors
Dates
2017-06-16—Published
2013-07-25—Filed