METHOD OF INJECTING INTO WELLS

METHOD OF INJECTING INTO WELLS

FIELD: oil and gas production industry. SUBSTANCE: this is used for increasing oil recovery from oil bed. According to method, after opening of oil bed, casing string is lowered into well. Prior to that, casing string is provided with hydraulic giant nozzles which are plugged by stoppers soluble in...

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Hauptverfasser: ASFANDIJAROV R.T, RAKHIMKULOV R.SH, OVTSYN I.O, AFRIDONOV I.F
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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creator ASFANDIJAROV R.T
RAKHIMKULOV R.SH
OVTSYN I.O
AFRIDONOV I.F
description FIELD: oil and gas production industry. SUBSTANCE: this is used for increasing oil recovery from oil bed. According to method, after opening of oil bed, casing string is lowered into well. Prior to that, casing string is provided with hydraulic giant nozzles which are plugged by stoppers soluble in acids. Then casing string is cemented with isolation of productive part of bed from cement slurry. Stoppers are dissolved and effected is hydraulic jet perforation. This is performed through hydraulic giant nozzles. Preliminarily space inside casing string is subjected to packing. EFFECT: higher efficiency. 4 dwg øøø1
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subjects 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
title METHOD OF INJECTING INTO WELLS
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