METHOD OF INCREASING THE WELL RATE OF EXPLOITATION AND RECHARGE WELLS

METHOD OF INCREASING THE WELL RATE OF EXPLOITATION AND RECHARGE WELLS

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 interna...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GREBENNIKOV VALENTIN T, POPOV MIKHAIL, IVANOV ANATOLY
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung: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 rho 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 phi vertical will be between tg(45-rho/2)>=tg(phi)>=1/√3, where rho-is the internal rock friction angle where the key slot is being made.