RU2013104859A - METHOD FOR OPENING PRODUCTIVE LAYER AT DEPRESSION - Google Patents
METHOD FOR OPENING PRODUCTIVE LAYER AT DEPRESSION Download PDFInfo
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- RU2013104859A RU2013104859A RU2013104859/03A RU2013104859A RU2013104859A RU 2013104859 A RU2013104859 A RU 2013104859A RU 2013104859/03 A RU2013104859/03 A RU 2013104859/03A RU 2013104859 A RU2013104859 A RU 2013104859A RU 2013104859 A RU2013104859 A RU 2013104859A
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- pressure
- depression
- borehole
- flushing fluid
- drilling
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Abstract
Способ вскрытия продуктивного пласта на депрессии, включающий спуск в скважину колонны бурильных труб с долотом и не менее двумя контейнерами с автономными манометрами, обвязку устья скважины, промывку ствола скважины и подачу на долото при бурении аэрированной промывочной жидкости с газообразным, например, азотным агентом, после промывки ствола скважины через кабельный ввод в скважину спускают кабельный глубинный манометр на глубину размещения в скважине автономных манометров колонны бурильных труб, затем в стволе скважины проводят исследования по установлению режимов бурения на депрессии, для чего после начала круговой циркуляции промывочной жидкости с газообразным агентом в стволе скважины поочередно создают не менее трех обеспечивающих создание депрессии режимов подачи аэрированной промывочной жидкости: ниже расчетного давления, равное расчетному и выше расчетного, при этом на всех режимах замеряют величины давлений на автономных и кабельном глубинном манометрах, фиксируют время и устанавливают потери давления в интервале от места установки манометра до устья скважины, по полученным данным производят анализ изменения забойного давления в зависимости от расхода промывочной жидкости и газообразного агента и строят график такой зависимости, по которому устанавливают требуемый режим подачи промывочной жидкости и газообразного агента, отличающийся тем, что режим поддержания заданной величины депрессии на продуктивный пласт подбирают таким образом, чтобы обеспечить постоянную величину депрессии при вскрытии пласта по всей толщине, регулированием подачи промывочной жидкости и газообразно�A method of opening a productive formation in a depression, including lowering drill string with a bit and at least two containers with autonomous pressure gauges into the borehole, tying the wellhead, flushing the wellbore, and supplying the aerated drilling fluid with a gaseous, for example, nitrogen agent, to the bit after drilling washing the borehole through the cable entry into the borehole, lower the cable depth gauge to the depth in which the autonomous manometers of the drill pipe string are placed in the borehole, then conduct in the borehole studies on the establishment of drilling regimes for depression, for which, after the beginning of the circular circulation of flushing fluid with a gaseous agent in the wellbore, at least three alternating modes of supplying depression of aerated flushing fluid are created alternately: below the design pressure equal to the design pressure and above the design pressure, while at all modes measure the pressure values on autonomous and cable depth gauges, record the time and set the pressure loss in the interval from the installation site of the manometer to According to the data obtained, they analyze the bottom-hole pressure change depending on the flow rate of the flushing fluid and the gaseous agent and construct a graph of this dependence, according to which the required flow rate of the flushing fluid and the gaseous agent is established, characterized in that the mode of maintaining the given value of depression on the reservoir selected in such a way as to ensure a constant value of depression during the opening of the formation throughout the thickness, by adjusting the flow of flushing fluid and gaseously
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013104859/03A RU2540701C2 (en) | 2013-02-05 | 2013-02-05 | Productive strata opening method at drawdown |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013104859/03A RU2540701C2 (en) | 2013-02-05 | 2013-02-05 | Productive strata opening method at drawdown |
Publications (2)
Publication Number | Publication Date |
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RU2013104859A true RU2013104859A (en) | 2014-08-10 |
RU2540701C2 RU2540701C2 (en) | 2015-02-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2013104859/03A RU2540701C2 (en) | 2013-02-05 | 2013-02-05 | Productive strata opening method at drawdown |
Country Status (1)
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RU (1) | RU2540701C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2598268C1 (en) * | 2015-10-13 | 2016-09-20 | Федеральное государственное бюджетное учреждение науки Институт Земной коры Сибирского отделения Российской академии наук | Method for initial exposing of complex cavernous-fracture of carbonate oil and gas saturated formation with horizontal shaft of long length |
RU2649204C1 (en) * | 2017-04-13 | 2018-03-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Method for drilling-in at controlled drawdown |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU16177U1 (en) * | 2000-01-25 | 2000-12-10 | Пермяков Александр Павлович | DEVICE FOR OPENING PRODUCTIVE LAYER |
RU2199646C1 (en) * | 2002-04-01 | 2003-02-27 | Общество с ограниченной ответственностью "ЛУКОЙЛ-Бурение-Пермь" | Process opening productive pool with differential pressure |
RU2287660C1 (en) * | 2005-10-07 | 2006-11-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method for drilling well on pressure drawdown |
RU69913U1 (en) * | 2007-03-28 | 2008-01-10 | Сергей Дмитриевич Глухов | DEVICE FOR OPENING A PRODUCTIVE LAYER AT DEPRESSION |
WO2011033001A1 (en) * | 2009-09-15 | 2011-03-24 | Managed Pressure Operations Pte. Ltd | Method of drilling a subterranean borehole |
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2013
- 2013-02-05 RU RU2013104859/03A patent/RU2540701C2/en not_active IP Right Cessation
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RU2540701C2 (en) | 2015-02-10 |
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Effective date: 20200206 |