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121.发明授权Well screen having a protective frame for a horizontal or high-angle well 失效一种井滤网与用于水平或倾斜的井孔的保护性框架。
公开(公告)号：EP0527426B1
公开(公告)日：1995-07-19
申请号：EP92113323.7
申请日：1992-08-05
IPC分类号： E21B43/08
CPC分类号： E21B43/088 , B01D29/15 , B01D29/48
摘要： A well screen for a horizontal or high-angle well includes a screen main body (11) and a protective frame (12). The screen main body has screen rods (14) arranged in the circumferential direction and a screen wire (15) wound on the screen rods. The protective frame includes protective rods (16) provided on the outside of the screen wire in the circumferential direction and extending in the axial direction of the well screen, annular rod holding members (17) provided with interval in the axial direction for holding the protective rods, and a protective wire (18) wound on the protective rods. When the well screen forced into the well passes through a bent section of the well, the protective frame slides in contact with the wall surface of the bent section thereby protecting the screen wire.
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公开(公告)号：EP0607809A1
公开(公告)日：1994-07-27
申请号：EP94100134.9
申请日：1994-01-06
CPC分类号： B07B1/4663 , B01D29/012 , B01D29/03 , B01D29/05 , B01D29/445 , B01D29/56 , E21B43/088 , Y10T29/49604
摘要： A multi-layer composite screen (1) having filters of a plurality of layers superposed one upon another is provided. Each filter (2, 3) of the plurality of layers has wires (4, 6) of a substantially triangular or trapezoidal cross section arranged in parallel to one another with a continuous slit (5, 7) of a substantially V-shaped cross section being formed between respective adjacent wires, said slit widening increasingly inwardly from the surface (4a) of the screen. The wires (4) of one filter (2) of the respective adjacent filters cross the wires (6) of the other filter (3) and the respective adjacent filters (2, 3) are fixed to each other at crossing points of the wires of the respective filters. In one aspect of the invention, the wires (6) of the lower layer are formed with linear projections (8) extending in the longitudinal direction of the wires which facilitate electrical welding of the filters of the adjacent layers.
摘要翻译： 提供了具有叠加在一起的多个层的滤波器的多层复合屏（1）。 多个层的每个过滤器（2,3）具有基本上三角形或梯形横截面的线（4,6），其彼此平行布置，具有大致V形截面的连续狭缝（5,7） 形成在各个相邻的线之间，所述狭缝从屏幕的表面（4a）逐渐变宽。 各个相邻过滤器的一个过滤器（2）的电线（4）与另一个过滤器（3）的电线（6）相交，并且各个相邻的过滤器（2,3）在电线的交叉点彼此固定 的各个过滤器。 在本发明的一个方面，下层的电线（6）形成有沿导线的纵向方向延伸的线性突起（8），这些导线有助于相邻层的滤波器的电焊接。
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公开(公告)号：EP0586992A1
公开(公告)日：1994-03-16
申请号：EP93113774.9
申请日：1993-08-27
发明人： Mefferd, Roy J.
CPC分类号： E21B43/086
摘要： A pair of elongated cylindrical members are constructed with first and second collars extending axially beyond their adjoining ends. The first and second collars have adjoining indentations and projections at their end edges which are adapted to interlock with one another so as to prevent rotation of the two elongated members with respect to one another. A coupler is removably fitted over the exterior of the first and second collars and holds them together against axial movement with respect to one another. The collars are each welded to the axial ends of the first and second cylindrical members. A sampling tube section is provided having slots to allow the fluid to be sampled to enter the internal bore of the tube. The slots are axial, and are spaced apart both angularly and axially. The slots are tapered so as to have a narrower width at the outer surface of the tube than at the inner surface of the bore.
摘要翻译： 一对细长的圆柱形构件被构造成具有轴向延伸超出其相邻端部的第一和第二套环。 第一和第二套环在它们的端部边缘处具有相邻的凹口和突出部分，其适于互相互锁，以防止两个细长构件相对于彼此旋转。 联接器可移除地装配在第一和第二套环的外部上，并将它们保持在一起，以抵抗相对于彼此的轴向运动。 套环各自焊接到第一和第二圆柱形构件的轴向端部。 提供采样管部分，其具有槽以允许流体被采样以进入管的内部孔。 槽是轴向的，并且在成角度和轴向间隔开。 狭槽是锥形的，使得在管的外表面处具有比在孔的内表面处更窄的宽度。
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124.发明公开Method of manufacturing a selective isolation screen 失效Verfahren zur Herstellung eines selektiven Isolationssieb过滤器。
公开(公告)号：EP0548910A1
公开(公告)日：1993-06-30
申请号：EP92121793.1
申请日：1992-12-22
IPC分类号： E21B43/08
CPC分类号： E21B43/088 , B01D29/15 , B01D29/48 , B01D29/54 , B01D29/58 , Y10T29/49602
摘要： A method of manufacturing a selective isolation screen includes steps of fitting a plurality of screen jackets (2) one by one on a base member (3), each of the screen jackets including a plurality of spacer members (4) extending in the longitudinal direction to be disposed, circumferentially spaced, on the base member and a wire (5) wound about the periphery of the spacer members with a predetermined gap, and welding the end portions of each screen jacket to the base member thereby fixing the screen jacket to the base member and also forming seal means and thus constituting a single unit screen. Difficulty in welding can thereby be avoided and location and state of mounting of sleeves can be visually checked.
摘要翻译： 制造选择隔离屏幕的方法包括以下步骤：将多个屏蔽套（2）一个接一个地装配在基底构件（3）上，每个屏蔽套包括多个沿纵向方向延伸的隔离构件（4） 沿周向隔开设置在基体部件上，以及以预定的间隙缠绕在间隔部件周围的线材（5），并且将每个丝网护套的端部焊接到基底部件上，从而将屏蔽护套固定到 并且还形成密封装置，从而构成单个屏幕。 因此可以避免焊接困难，并且可以目视检查套筒的安装位置和状态。
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公开(公告)号：EP0228262B1
公开(公告)日：1992-04-01
申请号：EP86309959.4
申请日：1986-12-19
发明人： Nagaoka, Tadayoshi
CPC分类号： E21B43/088 , B01D29/111 , B01D29/15 , B01D29/48 , Y10T29/49602
摘要： A double cylinder screen comprises an inner reinforcing cylinder which performs a pressure-resisting function against an external pressure and an outer screen cylinder which performs a screen function. The inner reinforcing screen comprises inner rods disposed cylindrically at a predetermined interval in the axial direction of the screen and a spiral reinforcing member wound on the outside of the inner rods and welded to the inner rods. The outer screen cylinder comprises screen rods disposed at a predetermined interval in the axial direction on the outer periphery of the inner reinforcing member and a wire wound spirally about the outside of the screen rods and welded to the screen rods. The width of a slit of the reinforcing member is larger than the width of a slit of the wire. The double screen cylinder is improved in its stength and can be manufactured without requiring a costly jig.
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公开(公告)号：EP0345690B1
公开(公告)日：1992-02-26
申请号：EP89110132.1
申请日：1989-06-05
CPC分类号： E21B43/086 , E03B3/18
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公开(公告)号：EP0228262A3
公开(公告)日：1988-09-21
申请号：EP86309959
申请日：1986-12-19
发明人： NAGAOKA, TADAYOSHI
CPC分类号： E21B43/088 , B01D29/111 , B01D29/15 , B01D29/48 , Y10T29/49602
摘要： A double cylinder screen comprises an inner reinforcing cylinder which performs a pressure-resisting function against an external pressure and an outer screen cylinder which performs a screen function. The inner reinforcing screen comprises inner rods disposed cylindrically at a predetermined interval in the axial direction of the screen and a spiral reinforcing member wound on the outside of the inner rods and welded to the inner rods. The outer screen cylinder comprises screen rods disposed at a predetermined interval in the axial direction on the outer periphery of the inner reinforcing member and a wire wound spirally about the outside of the screen rods and welded to the screen rods. The width of a slit of the reinforcing member is larger than the width of a slit of the wire. The double screen cylinder is improved in its stength and can be manufactured without requiring a costly jig.
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公开(公告)号：EP0228262A2
公开(公告)日：1987-07-08
申请号：EP86309959.4
申请日：1986-12-19
发明人： Nagaoka, Tadayoshi
CPC分类号： E21B43/088 , B01D29/111 , B01D29/15 , B01D29/48 , Y10T29/49602
摘要： A double cylinder screen comprises an inner reinforcing cylinder (1) which performs a pressure-resisting function against an external pressure and an outer screen cylinder (2) which performs a screen function. The inner reinforcing screen comprises inner rods (3) disposed cylindrically at a predetermined interval in the axial direction of the screen and a spiral reinforcing member (4) wound on the outside of the inner rods and welded to the inner rods. The outer screen cylinder comprises screen rods (5) disposed at a predetermined interval in the axial direction on the outer periphery of the inner reinforcing member and a wire (6) wound spirally about the outside of the screen rods and welded to the screen rods. The width of a slit of the reinforcing member is larger than the width of a slit of the wire. The double screen cylinder is improved in its strength and can be manufactured without requiring a costly jig.
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129.发明公开
公开(公告)号：EP0062378A1
公开(公告)日：1982-10-13
申请号：EP82200385.1
申请日：1982-03-30
申请人： WAVIN B.V.
发明人： Fehrmann, Heinrich
CPC分类号： E21B43/086 , B01D29/111 , B01D29/19 , B01D29/54 , E03B3/18
摘要： A plastics pipe 1 comprises longitudinally extending channels 8 in its wall, said channels having slits 9 which extend longitudinally over the entire length of the pipe. The rounded edges 19, 20 of the slits 9 merge on the inner side, into straight channel surfaces 23, 24 forming an angle of approximately 90°. The straight channel surfaces 23, 24 join a substantially rounded channel cross section as tangential planes. A plastics pipe 1 can be manufactured by extrusion.
A plurality of interconnected plastics pipes 1 forms a well pipe; the pipes may be interconnected by screw thread, a glued joint 6a or by heat shrinkage.摘要翻译： 一种塑料管1包括纵向延伸的通道8在其壁中，所述具有狭缝9在管的整个长度纵向延伸的通道。 圆形边缘19，狭缝9合并在内侧上，成直通道面23的20，24上形成大约90°角。 直通道表面23,24连接的通道大致圆边的横截面的切向平面中。 一种塑料管1可以通过挤压制造。 互连塑料管1个形成井管中的多个; 管道可通过螺纹，胶合连接6a或通过热收缩进行互连。
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