Method and apparatus for completing a slanted wellbore

Details Method and apparatus for completing a slanted wellbore Method and apparatus for completing a slanted wellbore

1980-01-08

1981-05-26

Pate, III, William F.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

With position orienting or indicating

E21B 43118

Patent

active

042692784

ABSTRACT:
A wellbore is formed with the lower marginal end portion thereof being turned substantially horizontally, thereby exposing a relatively large surface area of the pay zone to the cased borehole. A jet perforating gun has a member extending radially therefrom and into close proximity to the inside peripheral wall surface of the casing, and the shaped charges thereof are oriented so that they fire and perforate in a direction opposed to the arm. The gun is run downhole into proximity of the pay zone with the shaped charges being directed in a substantially downward direction so that when the gun is fired, the casing is perforated with the perforations extending downwardly into the hydrocarbon bearing formation. This expedient enables the perforated formation to be produced without flowing any of the unconsolidated formations into the wellbore.

REFERENCES:
patent: 2530833 (1950-11-01), Martin
patent: 2935944 (1960-05-01), Sweetman
patent: 3045748 (1962-07-01), Schramm
patent: 3367626 (1967-03-01), Bielstein
patent: 4153118 (1979-05-01), Harr

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