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    • 1. 发明授权
    • Foil wrapped base pipe for sand control
    • 箔包裹基管用于防砂
    • US5310000A
    • 1994-05-10
    • US952558
    • 1992-09-28
    • Bryant A. ArterburyHolley M. Cornette
    • Bryant A. ArterburyHolley M. Cornette
    • E21B29/02E21B43/08E21B43/10E21B43/11
    • E21B29/02E21B43/082E21B43/10E21B43/11
    • The flow apertures of a perforated mandrel are temporarily sealed by a foil covering sheet which is made of a sacrificial material, for example, zinc, aluminum and magnesium The sacrificial covering sheet prevents dirty completion fluid from passing through and in and out of the screen as it is run into the hole, thereby protecting the screen from plugging. During the time the screen mandrel is temporarily sealed by the sacrificial foil covering, cleaning fluid is circulated through the work string and is returned through the annulus between the screen and the open well bore for removing filter cake, drilling debris and lost circulation material. After the annulus has been cleaned, the annulus is filled with an acid solution or caustic solution, which dissolves the sacrificial foil and opens the base pipe perforations.
    • 穿孔心轴的流动孔通过由牺牲材料例如锌,铝和镁制成的箔覆盖片临时密封。牺牲覆盖片防止脏的完成液体通过并进出筛网 它进入孔,从而保护屏幕免受堵塞。 在屏幕心轴被牺牲箔覆盖物临时密封的时间期间,清洁流体通过工作线循环并且通过屏幕和开放井眼之间的环空返回,用于去除滤饼,钻屑和流失物质。 在环已经清洁之后,环形空间填充有酸溶液或苛性碱溶液,其溶解牺牲箔并打开基管穿孔。
    • 2. 发明授权
    • Multiple gravel pack well completions
    • 多个格子包完整
    • US5145004A
    • 1992-09-08
    • US667938
    • 1991-03-12
    • Holley M. Cornette
    • Holley M. Cornette
    • E21B43/04E21B43/14
    • E21B43/14E21B43/04
    • A multiple gravel pack well completion and a method for installing same wherein multiple zones in a wellbore can be gravel packed without the circulation of fluid. Particulate material, e.g. gravel, is preset in the wellbore adjacent the lower zone to be completed and a first auger-liner is "augered" into the preset gravel to form a lower gravel pack completion. A packer is set above the lower zone abd additional gravel placed onto the packer to fill the wellbore adjacent the upper zone. A second auger-liner assembly is augered into the additional gravel to form an upper gravel pack completion. Conduit means are then provided to establish fluid communication between the surface of the wellbore and the upper and lower gravel pack completions.
    • 多个砾石充填井完井和一种安装方法,其中井筒中的多个区域可以在不流体流通的情况下被砾石填充。 颗粒材料,例如 砾石预设在靠近待完成的下部区域的井眼中,并且将第一螺旋钻衬垫“螺旋”到预设的砾石中以形成下部砾石填充物完成。 将封隔器设置在放置在封隔器上的下部区域abd附加砂砾上方以填充邻近上部区域的井眼。 第二螺旋推进器组件被加入到附加的砂砾中以形成上砾石包装完成。 然后提供导管装置以建立井眼表面与上下砾石充填完井之间的流体连通。
    • 4. 发明授权
    • Gravel pack well completions
    • 砾石包装完井
    • US4995456A
    • 1991-02-26
    • US518048
    • 1990-05-04
    • Holley M. CornetteJean M. S. Weingarten
    • Holley M. CornetteJean M. S. Weingarten
    • E21B17/10E21B17/22E21B43/04
    • E21B17/1078E21B17/22E21B43/04
    • A method and apparatus for gravel-packing a formation which is especially useful in completing long production or injection zones and zones lying in deviated or horizontal boreholes wherein a gravel-pack tool is lowered to position a perforated liner adjacent the formation thereby forming an annulus between the liner and the formation. A gravel slurry is flowed down the borehole and is directed into a spiral flowpath by a distributor, e.g. helically-shaped vanes, on the tool as the slurry enters the annulus at the top of the liner. The spiraling of the slurry around the substantially-horizontal liner aids in directing gravel into production perforations if the well is cased and overcomes some of the gravitational effects on the settling of the gravel thereby providing a more uniform and efficient gravel pack around the liner.
    • 一种用于砾石填充地层的方法和装置,其特别可用于完成长的生产或注入区域和位于偏斜或水平钻孔中的区域,其中砾石包装工具被降低以将穿孔衬垫定位在邻近地层,从而在 内衬和地层。 砾石浆料沿着钻孔流下并由分配器引导到螺旋流路中,例如, 当浆料进入衬垫顶部的环形空间时,工具上形成螺旋状的叶片。 围绕基本水平的衬垫的浆料的螺旋形有助于将砾石引导到生产穿孔中,如果井被套管并且克服了对砾石沉降的一些重力作用,从而在衬套周围提供更均匀和有效的砾石包装。
    • 6. 发明授权
    • Method and apparatus for gravel pack well completions
    • 砾石充填井完井方法及装置
    • US5261486A
    • 1993-11-16
    • US877924
    • 1992-05-04
    • Holley M. CornetteMichael H. JohnsonRobert K. Bethel
    • Holley M. CornetteMichael H. JohnsonRobert K. Bethel
    • E21B33/126E21B34/10E21B43/04
    • E21B33/126E21B34/103E21B43/04
    • A method and apparatus for installing a gravel pack well completion wherein flow of fluid in the well can be effectively blocked and excessive hydrostatic pressure can be isolated from the top of a pre-placed column of gravel while an auger-liner assembly is rotated into the gravel. Basically, gravel is first placed within the zone after which a liner is lowered on a workstring and the liner is augered into the pre-placed gravel. A packer cup and by-pass assembly is coupled into the workstring having cup packers which effectively block flow within the well during installation of the liner. The cups are mounted on a rotatably mounted sleeve so that the workstring can be rotated while the cups are expanded against the well casing. The packer cup and by-pass assembly includes a bypass which can be opened after the liner has been placed so that the workstring can easily be withdrawn from the well.
    • 一种用于安装砾石充填井完井的方法和装置,其中可以有效地阻止井中的流体流动,并且可以从预置的砾石柱的顶部隔离过多的静水压力,同时将螺旋钻 - 衬套组件旋转到 碎石。 基本上,砾石首先放置在区域内,之后将衬垫放置在工作绳上,并将衬垫加入到预先放置的砂砾中。 封隔器杯和旁路组件被联接到具有杯封隔器的工作串中,其在安装衬套期间有效地阻止井内的流动。 杯子安装在可旋转地安装的套筒上,使得当杯子相对于井套管膨胀时,工作绳可以旋转。 封隔器杯和旁路组件包括旁路,其可以在衬垫被放置之后打开,使得工作绳可以容易地从井中取出。