• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1516259 Filter for earth drill FORACO FORAGE RATIONNEL CONSTRUCTION SA 15 Sept 1976 [19 Sept 1975] 38186/76 Heading BIT A recovery apparatus for the filtration of cuttings from a gas stream, said cuttings being removed during a drilling or drilled core-extraction operation, comprises a tube 2 for receiving drill cuttings provided with apertures 6 small enough to prevent the passage of at least some of the drill cuttings therethrough the apertured tube extending into an open end of a recovery sheath 5 which is closed at its base, and both being surrounded, for at least most of their length by an open ended decompression sleeve 3. A gas flow containing the cuttings passes mainly through slots 6, drillings trapped by slots 6 fall into recovery sheath 5, filling sheath 5 in the order of arrival, so that the bottom portion represents that portion drilled first. The apparatus may be connected to the central passage of a concentric double tube system the annular space outside the central passage receiving air under pressure. Atomised water may be injected between tube 2 and sleeve 3 to collect aperture passing dust particles from the end 8 of sleeve 3.
    公开号:SU841601A3
    申请号:SU762401951
    申请日:1976-09-17
    公开日:1981-06-23
    发明作者:Ламот Андре
    申请人:Форако Фораж Расьоннель Конст-Рюксьон (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the drilling of wells, in particular with reverse circulation of the washing agent. Core sampling and uuiaivia devices are known, having a core-boring mechanism. The device closest to the invention is a device containing a perforated tube, one end of which is connected to the core lifting tube 2. However, when using the known device, there is not sufficient representativeness of the samples. due to the fact that the sludge and small pieces of core are carried away by the flow of the washing agent from the perforated pipe. The purpose of the invention is to increase the representativeness of the samples. The goal is achieved by the fact that a device for coring and cuttings, containing a perforated pipe, one end of which is connected to a pipe for lifting core and sludge, is equipped with a mesh cup connected with the free end of a perforated tube and placed coaxially with THIS tube and mesh glass , airtight casing, made with an open end. The drawing shows the device, the overall appearance. The device contains a perforated pipe 1, to which, on one side, a pipe 2 for lifting core and sludge is attached, and on the other, a mesh cup Z. An airtight casing 4 with an open end 5 is placed in a coaxially perforated tube and a mesh cup. 1. A core and sludge are supplied through a pipe 2 to a perforated pipe 1, in which the flushing agent expands, in particular compressed air, and then without mixing the sludge and core fall into a mesh 3. The perforation of the pipe 1 facilitates the insertion The sludge is drained into the mesh beaker 3 while continuously maintaining an overpressure due to the mesh beaker 3 facilitating the removal of water. If it is necessary to trap fine dust, which, together with air, penetrates through the walls of the net glass 3, between the outer side surface of this glass and the inner surface of the airtight casing 4, pass through the water that absorbs this dust.
    Thus, practically all core and sludge coming from the well is captured, which increases the representativeness of the sample and allows you to get a complete picture of the geological well section.
    权利要求:
    Claims (2)
    [1]
    1. US patent number 2657016 Cl. 175-215, publ. 27.10.53.
    [2]
    2. USSR author's certificate number 244245, cl. Е 21 В 7 / 00,15.07.66 (prototype).
    类似技术:
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    JPH03197789A|1991-08-29|Sampling method of high quality of geologic sample and device thereof
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    SU52313A1|1937-12-31|A device for the selection of rocks from the mud during drilling
    同族专利:
    公开号 | 公开日
    DE2641626B2|1979-12-20|
    CA1051416A|1979-03-27|
    DE2641626A1|1977-03-24|
    US4098698A|1978-07-04|
    DE2641626C3|1980-08-28|
    FR2324858B1|1982-09-17|
    BR7606115A|1977-06-21|
    GB1516259A|1978-06-28|
    FR2324858A1|1977-04-15|
    JPS5252101A|1977-04-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1645364A|1926-10-04|1927-10-11|Levi W Weaver|Liquid strainer for orchard sprayers|
    US3291229A|1963-11-04|1966-12-13|Spencer Webb|Drilling and coring apparatus and method|US4410425A|1981-06-04|1983-10-18|Gardes Robert A|Flow line filter apparatus|
    US4599172A|1984-12-24|1986-07-08|Gardes Robert A|Flow line filter apparatus|
    US4687578A|1985-12-12|1987-08-18|Monsanto Company|Fluid separation membranes|
    US5814204A|1996-10-11|1998-09-29|Corpex Technologies, Inc.|Electrolytic decontamination processes|
    GB2341117A|1998-09-01|2000-03-08|Draeger Sicherheitstech Gmbh|Dust sampling device|
    MXPA04004561A|2001-11-13|2004-09-10|Bhp Billiton Innovation Pty|A human matrix metalloproteinase and uses therefor.|
    WO2006039665A2|2004-10-01|2006-04-13|Complete Production Services, Inc.|Apparatus and method for well completion|
    US8127867B1|2008-09-30|2012-03-06|Bronco Oilfield Services, Inc.|Method and system for surface filtering of solids from return fluids in well operations|
    EP2392772A1|2010-06-07|2011-12-07|Siemens Aktiengesellschaft|Method and device for increasing the yield from a mineral deposit|
    EP2395352A1|2010-06-07|2011-12-14|Siemens Aktiengesellschaft|Method and device for determining the local extension of mineral material in a rock|
    EP2392768B1|2010-06-07|2013-08-28|Siemens Aktiengesellschaft|Method and device for increasing the yield from a mineral deposit|
    US9816338B1|2016-05-11|2017-11-14|Iron Horse Oilfield Service Group, LLC|Elongated filter for use in wellbore operations|
    CN111070408B|2018-10-18|2021-06-08|林钟扬|Equipment for geological exploration|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7528798A|FR2324858B1|1975-09-19|1975-09-19|
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