Well wall resistance-increasing oil production method and device for improving energy utilization rate of injected gas

Well wall resistance-increasing oil production method and device for improving energy utilization rate of injected gas

The invention provides a well wall resistance-increasing oil production method and device for improving the energy utilization rate of injected gas. The method comprises the steps that gas is injectedinto an oil layer, the gas pressure in the oil layer reaches the initial oil layer pressure, and gas...

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Hauptverfasser: SONG QINGXIN, YANG ZHIDONG, ZHANG SHANYAN, JI ZEMIN, CHEN XINGLONG, PU YULONG
Format: Patent
Sprache:chi ; 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 SONG QINGXIN
YANG ZHIDONG
ZHANG SHANYAN
JI ZEMIN
CHEN XINGLONG
PU YULONG
description The invention provides a well wall resistance-increasing oil production method and device for improving the energy utilization rate of injected gas. The method comprises the steps that gas is injectedinto an oil layer, the gas pressure in the oil layer reaches the initial oil layer pressure, and gas in the oil layer displaces oil to seep into a producing well; an initial oil seepage pressure is formed in the communicating position of the interior of the producing well and the oil layer and is smaller than an initial oil layer pressure; the gas production rate and the oil production rate of the producing well are monitored; and when the ratio of the gas production rate to the oil production rate is higher than the preset ratio, the initial oil seepage pressure is increased to the increasedoil seepage pressure, and the increased oil seepage pressure is smaller than the initial oil layer pressure. The device is used for implementing the method. According to the method and the device, byincreasing the oil seepage
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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 Well wall resistance-increasing oil production method and device for improving energy utilization rate of injected gas
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