Method for drilling drainholes within producing zone

Details Method for drilling drainholes within producing zone Method for drilling drainholes within producing zone

1984-10-05

1986-07-22

Levy, Stuart S.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Ray energy detection or measuring

175 45, 175 62, E21B 4700

Patent

active

046013539

ABSTRACT:
A method for drilling a drainhole through a subsurface formation without intersecting upper or lower boundaries thereof in which a directionally sensitive measurement while drilling device carried on the drainhole string is used to measure a formation property which indicates proximity to a formation boundary. Upon detection of such proximity, the direction of drainhole drilling is changed to direct the drainhole away from the detected boundary.

REFERENCES:
patent: 2336338 (1943-12-01), Zublin
patent: 3398804 (1968-08-01), Holbert
patent: 3823787 (1974-07-01), Haworth et al.
patent: 4262964 (1981-04-01), Ingle et al.

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