Method of increasing the well rate of exploitation and...

Details Method of increasing the well rate of exploitation and... Method of increasing the well rate of exploitation and...

2006-04-11

2006-04-11

Neuder, William (Department: 3672)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S308100, C166S055000

Reexamination Certificate

active

07025141

ABSTRACT:
The invention includes a method of increasing of the well rate of exploitation and recharge wells, comprising a means of decreasing the stress state in the well area by constructing of slot-like discharge key seats, wherein the slot-like key seats have a screw-like shape, wherein preliminary internal rock friction angles ρ are determined for a rock composing a productive strata, and a pitch of the slot key seat screw is selected such that the tangent of the angle of deviation of the slot surface from the φ vertical will be between tg(45−ρ/2)≧tg(φ)≧1/√3, where 92 —is the internal rock friction angle where the key slot is being made.

REFERENCES:
patent: 4491022 (1985-01-01), de la Cruz
patent: 5445220 (1995-08-01), Gurevich et al.
patent: 6651741 (2003-11-01), Bassin et al.

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