METHOD AND APPARATUS FOR OIL PRODUCTION BY INCREASING RESISTANCE OF BOREHOLE WALL WITH IMPROVED ENERGY UTILIZATION RAE OF INJECTION GAS

METHOD AND APPARATUS FOR OIL PRODUCTION BY INCREASING RESISTANCE OF BOREHOLE WALL WITH IMPROVED ENERGY UTILIZATION RAE OF INJECTION GAS

A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage...

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Hauptverfasser: Ji, Zemin, Pu, Yulong, Zhang, Shanyan, Yang, Zhidong, Song, Qingxin, Chen, Xinglong
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Sprache:eng
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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 Ji, Zemin
Pu, Yulong
Zhang, Shanyan
Yang, Zhidong
Song, Qingxin
Chen, Xinglong
description A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage pressure is present at a position where the inside of the production well is in communication with the oil reservoir. The initial oil seepage pressure is less than the initial oil reservoir pressure. The method also includes monitoring gas production and oil production of the production well and increasing the initial oil seepage pressure to an increased oil seepage pressure when a ratio of the gas production to the oil production is higher than a predetermined ratio. The increased oil seepage pressure is smaller than the initial oil reservoir pressure.
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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 AND APPARATUS FOR OIL PRODUCTION BY INCREASING RESISTANCE OF BOREHOLE WALL WITH IMPROVED ENERGY UTILIZATION RAE OF INJECTION GAS
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