Sealed lateral wellbore junction

Details Sealed lateral wellbore junction Sealed lateral wellbore junction

2006-03-14

2006-03-14

Dang, Hoang (Department: 3672)

Wells

Wells with lateral conduits

C166S117600, C166S313000

Reexamination Certificate

active

07011151

ABSTRACT:
The present invention relates to downhole drilling operations, and more particularly, to the completion of lateral boreholes. Apparatus (100) is provided comprising a tubular liner portion (108) for lining a portion of a lateral borehole adjacent an opening of a borehole into the lateral borehole. An end portion of said tubular liner portion (108) is provided with a flange element (102) having a curved surface for locating in abutment with an area of main borehole surrounding said opening. A method of using said apparatus (100) is also provided.

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Jonas Lindvall, et al., Multilateral Tieback Insert Provides a Low Cost, . . . Junction, Aug. 11, 1999.

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