Horizontal well completions

Details Horizontal well completions Horizontal well completions

1992-09-29

1993-10-05

Bui, Thuy M.

Wells

Processes

Placing fluid into the formation

E21B 4300

Patent

active

052496287

ABSTRACT:
Casing slip joints are provided on opposite sides of a fracture initiation location to accommodate casing and formation movement during fracturing of a well. In another aspect of the invention, the fracture initiation location is provided by forming openings through the well casing and then forming fan-shaped slots in the formation surrounding the casing. Those slots are formed by a hydraulic jet which is directed through the opening and then pivoted generally about the point of the opening. These fan-shaped slots circumscribe an angle about the axis of the casing substantially greater than the angle circumscribed by the opening itself through which the slot was formed. These techniques are particularly applicable to fracturing of horizontal wells.

REFERENCES:
patent: 4850431 (1989-07-01), Austin et al.
patent: 4949788 (1990-08-01), Szarka et al.
patent: 4979561 (1990-12-01), Szarka
patent: 4991653 (1991-02-01), Schwegman
patent: 4991654 (1991-02-01), Brandell et al.
patent: 5029644 (1991-07-01), Szarka et al.
patent: 5133410 (1992-07-01), Gadelle et al.

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