Device and method for water drainage and gas production by pressure control and gas lift

A device for water drainage and gas production by pressure control and gas lift and a method for collecting formation gas using the device for water drainage and gas production by pressure control and gas lift. The device for water drainage and gas production by pressure control and gas lift achieve...

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Main Authors Shen, Maohe, Xu, Hongbao
Format Patent
LanguageEnglish
Published 24.05.2018
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
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Abstract A device for water drainage and gas production by pressure control and gas lift and a method for collecting formation gas using the device for water drainage and gas production by pressure control and gas lift. The device for water drainage and gas production by pressure control and gas lift achieves water drainage and gas production by means of the combination of pressure control technology and gas lift technology, and said device comprises an inner tube (11), a intermediate tube (9), and an outer tube (8) buried within a gas well and configured to be nested with each other, the inner tube (11) being provided with a gas-lift valve (7) and a pressure-control valve (13), the pressure-control valve (13) being connected to a gas pressure source (1) and being able to control the operation of the gas pressure source(1). The described technical solution provides a device and a method for water drainage and gas production by pressure control and gas lift, being simple in structure, low in cost, effective in gas collection, and well-adapted.
AbstractList A device for water drainage and gas production by pressure control and gas lift and a method for collecting formation gas using the device for water drainage and gas production by pressure control and gas lift. The device for water drainage and gas production by pressure control and gas lift achieves water drainage and gas production by means of the combination of pressure control technology and gas lift technology, and said device comprises an inner tube (11), a intermediate tube (9), and an outer tube (8) buried within a gas well and configured to be nested with each other, the inner tube (11) being provided with a gas-lift valve (7) and a pressure-control valve (13), the pressure-control valve (13) being connected to a gas pressure source (1) and being able to control the operation of the gas pressure source(1). The described technical solution provides a device and a method for water drainage and gas production by pressure control and gas lift, being simple in structure, low in cost, effective in gas collection, and well-adapted.
Author Xu, Hongbao
Shen, Maohe
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Snippet A device for water drainage and gas production by pressure control and gas lift and a method for collecting formation gas using the device for water drainage...
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SubjectTerms 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 Device and method for water drainage and gas production by pressure control and gas lift
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