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31. 发明专利

JP3776831B2 Underground water level lowering equipment 有权
公开(公告)号：JP3776831B2
公开(公告)日：2006-05-17
申请号：JP2002142620
申请日：2002-05-17
申请人：和彦坂本
发明人：和彦坂本
IPC分类号： E02D3/10 , E21B43/08

32. 发明专利

JP2003342977A Spreadable screen for horizontal well and for inclined well and its execution method 审中-公开
标题翻译：用于水平井和易于渗透的透气屏幕及其执行方法
公开(公告)号：JP2003342977A
公开(公告)日：2003-12-03
申请号：JP2002152306
申请日：2002-05-27
申请人： Tadayoshi Nagaoka , 忠義永岡
发明人： NAGAOKA TADAYOSHI
IPC分类号： E03B3/14 , E21B43/08 , E21B43/10
CPC分类号： E21B43/108 , E21B43/103
摘要： PROBLEM TO BE SOLVED: To provide a screen for preventing the movement of sand due to the movement of fluid in a horizontal well or an inclined well.
SOLUTION: The screen comprises: a hollow base pipe (2) where a number of liquid collecting holes are formed; and a spiral wedge wire (5) that is wound around a support rod for welding so that slits with a specific width can be formed at the outer periphery side of a support rod (4). The screen has a spiral wedge wire screen (3) that is cut in an axial direction at one point on a circumference. Both the edges (3a, 3b) in the peripheral direction of the spiral wedge wire screen are overlapped for winding at the outer periphery side of the hollow base pipe (2). Then, an edge section (3) at the side of a middle outer periphery of the both the ends is connected by a connecting wire for passing the hollow section of the hollow base pipe at a portion other than both the end sections (3a, 3b) in the spiral wedge wire screen (3) at a specific interval in the axial direction of the screen.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于防止由于流体在水平井或倾斜井中移动而导致的沙子移动的筛网。解决方案：屏幕包括：形成多个液体收集孔的中空基管（2）; 以及缠绕在用于焊接的支撑杆上的螺旋楔形线（5），使得能够在支撑杆（4）的外周侧形成具有特定宽度的狭缝。屏幕具有螺旋楔形丝网（3），其在圆周上的一个点沿轴向切割。在螺旋楔形丝网的圆周方向上的边缘（3a，3b）两边重叠，以在中空基管（2）的外周侧卷绕。然后，通过连接线将两端的中央外周侧的边缘部（3）连接，使中空基管的中空部在两端部（3a，3b）以外的部分）在屏幕的轴向上以特定间隔在螺旋楔形丝网（3）中。版权所有（C）2004，JPO

33. 发明专利

JP2002332791A TECHNOLOGY FOR FORMING EXTENSIBLE INSTRUMENT FROM CELL SHIFTABLE BETWEEN CONTRACTED STATE AND EXTENDED STATE 有权
公开(公告)号：JP2002332791A
公开(公告)日：2002-11-22
申请号：JP2002044030
申请日：2002-01-16
申请人： SCHLUMBERGER TECHNOLOGY CORP
发明人： HART BARRIE , JOHNSON CRAIG D , SCHETKY L MCD
IPC分类号： E21B41/00 , A61F2/91 , E21B33/12 , E21B33/124 , E21B33/127 , E21B41/02 , E21B43/08 , E21B43/10 , E21B43/16 , F16L57/00 , A61M29/02
摘要： PROBLEM TO BE SOLVED: To provide an extensible instrument usable in underground environment, easily extensible in a desired place without requiring large force for forming an extended state, with no restrictions on the selection of usable materials. SOLUTION: This extensible instrument 24 is composed of a plurality of extensible cells 23. The cell may be a bistable cell extended from a contracted position toward an extended position, or a cell of the other form. It is further preferable to combine a lock mechanism for holding the cell and a structure body into the extended position.

34. 发明专利

JP2000028495A TUBE FOR WELL FOR COLLECTING AND OBSERVING CONTAMINATED SUBTERRANEAN WATER 失效
公开(公告)号：JP2000028495A
公开(公告)日：2000-01-28
申请号：JP19704398
申请日：1998-07-13
申请人： KOKUSAI KOGYO CO LTD
发明人： TANAKA MASATOSHI , NAKAJIMA MAKOTO
IPC分类号： E21B43/08 , B01D35/02 , G01N1/10 , G01N33/24
摘要： PROBLEM TO BE SOLVED: To provide a tube for a well for collecting and observing an underground water to which sand and mud never invade from a water collection part, in a stake process or during the collection of the underground water. SOLUTION: A conical penetration part 1 is set at a leading end, a tube 2 continuous with the penetration part 1 is set, and a screen tube 4 is connected to a predetermined position of the tube 2. The screen tube 4 is a double tube structure of an outer tube 4a and an inner tube 4b. A water collection part is formed to the outer tube 4a and inner tube 4b. A net part 6 is wound to the inner tube 4b, thereby forming a triple structure. Slits S are formed as water collection parts 5a to the outer tube 4a of the screen tube 4, and holes R as water collection parts 5b are formed to the inner tube 4b. The slit S is set to be smaller in breadth than an opening part of the hole R and larger than a mesh of the net part 6. Alternatively, a stopper part of a smaller diameter than an outer diameter of the inner tube 4b of the screen tube 4 is provided, thereby preventing the net part 6 from sliding up due to an inertia while the tube is staked.

35. 发明专利

JP2000027170A GROUNDWATER LEVEL LOWERING DEVICE, GROUND IMPROVEMENT METHOD AND STRAINER DEVICE 失效
公开(公告)号：JP2000027170A
公开(公告)日：2000-01-25
申请号：JP8994199
申请日：1999-03-30
申请人： NISHIMATSU CONSTR CO LTD , NIPPON KENSETSU KIKAI SHOJI KK , ASAHI TECHNO KK
发明人： YAMAGUCHI TORU , TAKAHASHI MOKICHI , KIKUCHI KAZUNARI
IPC分类号： E03B3/18 , E02D3/10 , E21B43/08
摘要： PROBLEM TO BE SOLVED: To provide a groundwater level lowering device having high catchment efficiency, a ground improvement method making use of the groundwater level lowering device and strainer device even in the case the water level is lowered down to the position of the strainer. SOLUTION: A groundwater level lowering device is so constituted that the groundwater level is lowered by forcedly draining ground water flowing to the inside of a casing pipe buried into the ground on the ground by means of a pumping device 7. Then, it is equipped with a strainer pipe 3 connected to the casing pipe and capable of making groundwater flow thereinto and an internal cylinder pipe 6 provided in the inside of the strainer pipe 3, separated from an interior wall of the strainer pipe 3 at a specific interval to provide and having a water hole 6a to the lower end.

36. 发明专利

JP2891583B2 失效
公开(公告)号：JP2891583B2
公开(公告)日：1999-05-17
申请号：JP36049491
申请日：1991-12-27
申请人： NAGAOKA KK
发明人： NAGAOKA TADAYOSHI , DERII ESU SUPAARIN
IPC分类号： E21B43/00 , B01D29/11 , E21B43/08

37. 发明专利

JPH08158418A WATER CATCHMENT PIPE 失效
公开(公告)号：JPH08158418A
公开(公告)日：1996-06-18
申请号：JP30615194
申请日：1994-12-09
申请人： HIWAKI TAKAO
发明人： HIWAKI TAKAO
IPC分类号： E03B3/11 , E03B3/24 , E21B43/00 , E21B43/08
摘要： PURPOSE: To heighten the water catchment efficiency regardless of the hole diameter by forming an outer and an inner pipe through winding a wire round cores arranged circularly while an appropriate spacing is reserved, and by filling the gap between the two pipes with gravel. CONSTITUTION: A water catchment pipe 1 is formed by inserting an inner pipe 3 into an outer pipe 2 and filling the gap between them with gravel 4. The outer pipe 2 is formed by winding spirally a wire 8 with a small spacing round cores 7 which are arranged between an upper ring and a lower ring 6, and a water passage slit narrow on the natural ground side and wide on the inside is formed between turns of the wire 8 having a triangular section, and it is made unlikely that grains of earth and sand flow into the outer pipe 2. The inner pipe 3 is configured the same as the outer pipe 2, wherein the lower ring 6 is welded to the bottom bed so that coaxial arrangement with the outer pipe 2 is generated. A water passage pipe 12 is connected with the upper ring of the inner pipe 3 and inserted through a boring hole, and the hole is excavated to the same as or some greater than the outside diameter of the water catchment pipe 1, and the outer pipe 2 is put in tight contact with the hole wall so that the catchment efficiency of subsoil water is heightened.

38. 发明专利

JPH0748983A WELL SCREEN 失效
公开(公告)号：JPH0748983A
公开(公告)日：1995-02-21
申请号：JP7642494
申请日：1994-03-22
申请人： HALLIBURTON CO
发明人： BURAIANTO EI AATAABERII , JIEIMUZU II SUPANGURAA
IPC分类号： E03B3/18 , B01D29/11 , B01D39/16 , E21B43/08
摘要： PURPOSE: To prevent the channeling of a prepack by forming an annular body which demarcates a passage for a produced fluid and is made of a sintered spherical plastic member. CONSTITUTION: An inner screen 44 composed of a spirally wound thin-gage stainless steel wire is concentrically arranged on the outside of a tubular mandrel 38 having a plurality of bored passages 40 through inner ribs 66. In addition, an outer screen 42 composed of a spirally wound stainless steel wire is concentrically arranged on the outside of the inner screen 44 through outer ribs 52. Moreover, a sintered homogenous prepack 58 is formed by arranging acid- resistant spherical plastic beads 60 between the screens 44 and 42 and, in addition, uniting the mandrel 38 and screens 42 and 44 in one body by heating and melting the beads 60.

39. 发明专利

JPH06501069A 失效
公开(公告)号：JPH06501069A
公开(公告)日：1994-01-27
申请号：JP51730591
申请日：1991-10-03
IPC分类号： B01D29/11 , B01D39/20 , B22F3/11 , B22F5/12 , B22F7/08 , B22F8/00 , C25F3/24 , E21B43/08
摘要： A tubular sand screen is made in one piece entirely of powdered metal slivers which are molded and sintered to form a metallurgically integral rigid tubular structure. Aggregate metal particles, for example, stainless steel slivers, are bonded together by interatomic diffusion as a result of sintering the compacted slivers under high temperature and pressure conditions. The sintered metal sand screen performs the function of the conventional prepack assembly as well as the screen function. In one aspect of the invention, the sintered metal screen is subjected to electropolishing to yield an effective porosity of 40-60 mesh, with an average pore size of 150 microns. Most of the surface irregularities are removed by electropolishing, and very few nucleation sites remain where particles in the size range of 74 microns-100 microns can become captured or otherwise lodged to cause plugging of the screen.

40. 发明专利

JPH05261360A 失效
公开(公告)号：JPH05261360A
公开(公告)日：1993-10-12
申请号：JP34067192
申请日：1992-12-21
IPC分类号： B01D11/02 , B09C1/00 , B09C1/02 , B09C1/06 , B09C1/08 , E02D3/10 , E02D3/12 , E21B7/26 , E21B10/44 , E21B43/08 , E21B49/08 , B09B3/00
摘要： PURPOSE: To provide a removable tube for cleaning of contaminated soil which is usable for injection and extraction of a fluid by drilling the contaminated soil. CONSTITUTION: An injection and extraction tube is constituted to be removably inserted into the soil and is provided with a hollow tube member 16, which has a principal axis 14, first and second end parts, and a tip end part 20, which is fitted to the first end part of the tube member 16. The tube member 16 has plural apertures 26, which are formed in the wall thereof and enable the fluid to flow in a direction intersecting almost perpendicularly to the principal axis. Further, the injection and extraction tube is provided with a mounting means 40, with which the tube member is detachably mounted on a driving means 38 to enable the revolving action around the principal axis of the tube member, and this mounting means 40 is constituted to detachably mount the tube member 16 on a fluid system, which acts so as to be drived by passing the fluid through the apertures 26.

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