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WO2003091535A1 - Tamis a sable a structure a plusieurs cables profiles et soudes - Google Patents

Tamis a sable a structure a plusieurs cables profiles et soudes Download PDF

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Publication number
WO2003091535A1
WO2003091535A1 PCT/JP2003/004800 JP0304800W WO03091535A1 WO 2003091535 A1 WO2003091535 A1 WO 2003091535A1 JP 0304800 W JP0304800 W JP 0304800W WO 03091535 A1 WO03091535 A1 WO 03091535A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
screen
wire
wires
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2003/004800
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English (en)
Inventor
Tadayoshi Nagaoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU2003230238A priority Critical patent/AU2003230238A1/en
Publication of WO2003091535A1 publication Critical patent/WO2003091535A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/088—Wire screens

Definitions

  • This invention relates to a well screen for a horizontal or inclined well and, more particularly, to a well screen for a horizontal or inclined oil well capable of coping with erosion of a screen wire caused by collision of sand grains accompanying crude oil flowing into the well with the screen wire.
  • FIG. 12 shows one of such horizontal or inclined well 100 which is formed by digging the ground from a vertical portion 100a through a curved portion 100b to a horizontal or inclined portion 100c which extends in the horizontal or inclined direction along the oil stratum. Since this type of horizontal or inclined well has a screen section for collecting oil which is several time as long as a conventional vertical well, the horizontal or inclined well has the advantage that it has a superior production efficiency which is several times as large as that of the vertical well.
  • a general practice adopted in the industry is, as shown in FIG.13, to fill gravel 140 in an annulus between a well bore 120 and a cylindrical screen 130 so that when crude oil flows into the well in the direction of the arrow B, sand of the oil stratum does not move and therefore does not collide with the screen wire.
  • an object of the prsent invention to provide a cylindrical screen for a horizontal or inclined well capable of preventing invasion of sand into the screen notwithstanding use of the screen over a long period of time.
  • a cylindrical screen for a horizontal or inclined well having a multiple welded wedge-wire structure
  • a cylindrical screen for a horizontal or inclined well having a multiple welded wedge-wire structure
  • a plurality of support members extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen; a spiral wedge-wire wound about the outside surface of the support members so as to form a slit of a predetermined width; and a plurahy of linear wedge-wires extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction on the outside surface of the spiral wedge -wire so as to form shts of a predetermined width, said linear wedge-wires being welded directly to the spiral wedge-wire.
  • the inside inside wire can prevent further invasion of the sand grains and, therefore, invasion of the sand grains into the screen can be prevented for a long period of time without filling gravel in the cavity between the well bore and the cyhndrical screen.
  • the inside spiral wire functions as the support rods for the outside linear wedge- ires and, therefore, total thickness of the cylindrical screen can be held at the minimum notwithstanding the fact that the cylindrical screen is of a multiple wire structure. Accordingly, the inner diameter of the cylindrical screen is not reduced significantly when the cylindrical screen having an outer diameter matching the well bore has been installed and, as result, a well of a high productivity can be installed.
  • said support members are support rods.
  • said support members are linear wedge-wires extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen so as to form slits of a predetermined width.
  • the support members function as a screen as well as support members for the spiral wire and, accordingly, the life of the cyhndrical screen can further be prolonged.
  • the cylindrical screen further comprises an outer spiral wedge-wire wound about the outside surface of the linear wedge-wires so as to form a slit of a predetermined width, said outer spiral wedge-wire being welded directly to the linear wedge-wires.
  • the cylindrical screen further comprises a plurality of outer linear wedge-wires extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen so as to form shts of a predtermined width, said outer linear wedge-wires being welded directly to the outer spiral wedge-wire.
  • the cylindrical screen can be inserted smoothly into a long horizontal well whereby installation of the cylindrical screen can be made quickly and easily.
  • a cylindrical screen for a horizontal or inclined well having a multiple welded wedge-wire structure comprising: a perforated base pipe formed with a plurality of fluid collection holes; a plurality of support members extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen on the outside of the perforated base pipe; a spiral wedge-wire wound about the outside surface of the support members so as to form a slit of a predetermined width; and a plurahy of linear wedge-wires extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction on the outside surface of the spiral wedge -wire so as to form shts of a predetermined width, said linear wedge-wires being welded directly to the spiral wedge-wire.
  • a filter member such as a wire-mesh or a filter cloth is interposed between the perforated base pipe and the support members.
  • the width of the sht of the wedge-wire can be made a width which can prevent invasion of sand grains of a larger grain diameter and, as a result, quantity of oil flowing into the screen can be made larger while preventing invasion of sand grains. Further, since a wedge-wire of a larger diameter can be used by selecting a larger sht width, mechanical strength of the cylindrical screen can be improved to that degree.
  • a cylindrical screen for a horizontal or inclined well having a multiple welded wedge-wire structure comprising: a perforated base pipe formed with a plurality of fluid collection holes; a plurality of support members extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen on the outside of the perforated base pipe; a spiral wedge-wire wound about the outside surface of the support members so as to form a sht of a predetermined width; and a plurahy of linear wedge-wires extending in the axial direction of the screen and arranged at a predetermined interval in the circumferential direction of the screen so as to form shts of a predetermined width, said linear wedge-wires being arranged with a predetermined interval in the radial direction of the screen from the outside surface of the spiral wedge-wire and thereby defining an annulus between the spiral wedge-wire and the linear wedge-wires; an outer spiral wedge-wire wound on the outside of the linear wedge
  • FIG. 1 is a perspective view showing a preferred embodiment of the invention
  • FIG. 2 is a perspective view showing another embodiment of the invention.
  • FIG. 3 is an enlarged view of a portion of the embodiment shown inFIG. ⁇ ;
  • FIG. 4 is a perspective view showing another embodiment of the invention.
  • FIG. 5 is a perspective view showing another embodiment of the invention.
  • FIG. 6 is a perspective view showing another embodiment of the invention.
  • FIG. 7 is a perspective view showing another embodiment of the invention.
  • FIG. 8 is a perspective view showing another embodiment of the invention.
  • FIG. 9 is a perspective view showing another embodiment of the invention.
  • FIG. 10 is a perspective view showing another embodiment of the invention.
  • FIG. 11 is a perspective view showing a portion of the embodiment shown in FIG. 10;
  • FIG. 12 is a sectional view schematically showing a horizontal well
  • FIG. 13 is a sectional view showing a state of packing of gravel in a vertical well.
  • FIGs. 14A and 14B are sectional views showing a state of a screen in a horizontal well.
  • FIG. 1 shows a preferred embodiment of the cylindrical screen for a horizontal or inclined well having a multiple wire structure made according to the invention and FIG. 3 shows a part of the cylindrical screen in an enlarged scale.
  • a cylindrical screen 1 comprises a plurahty of support rods 2 extending in the axial direction of the screen 1 and arranged at a predetermined interval in the circumferential direction of the screen 1, a spiral wedge-wire 3 wound about the outside surface of the support rods 2 so as to form a sht 3a of a predetermined width, and a plurahty of hnear wedge-wires 4 extending in the axial direction of the screen 1 and arranged at a predetermined interval in the circumferential direction on the outside surface of the spiral wedge-wire 3 so as to form shts 4a of a predetermined width.
  • the hnear wedge-wires 4 are welded directly to a flat surface of the spiral wedge- wire 3.
  • the support rods 2 constitute the support members supporting the spiral wedge-wire 3.
  • the support rods 2 are formed of rods made of steel having a circular shape in section but may be formed of rods having another shape in section.
  • the support rods 2 are arranged at a predetermined interval in the circumferential direction of the screen 1, generally in the form of a cylinder.
  • the spiral wedge-wire 3 On the outside surface of the support rods 2 is wound the spiral wedge-wire 3 in the direction substantially crossing the support rods 2.
  • the spiral wedge wire 3 is arranged in such a manner that its flat surface 3b faces outside and the other two sides 3c an 3d define the sht 3 a with the adjacent wedge -wire portion which widens gradually radially inwardly, i.e., toward the inside of the screen.
  • the spiral wedge-wire 3 is welded at its inside apex 3e to the support rods 2.
  • the width of the sht 3a in the axial direction of the spiral wedge-wire 3 is so set that the width of the sht 3a at the same plane as the outside surface of the spiral wedge-wire 3 will become smaller than the width of the outside surface of the spiral wedge-wire 3.
  • the linear wedge-wires 4 are arranged, like the spiral wedge-wire 3, in such a manner that its flat surface 4b faces outside and the other two sides 4c an 4d define the sht 4a with the adjacent wedge-wires which widens gradually toward the inside of the screen.
  • the linear wedge-wires 4 are welded at their inside apexes 4e to the flat outside surface 3b of the spiral wedge- wire 3.
  • FIG. 2 shows another embodiment of the invention. In the embodiment of FIG. 2 and subsequent embodiments, the same component elements as those of the embodiment of FIG. 1 are designated by the same reference characters and description thereof will be omitted.
  • the embodiment of FIG. 2 differs from the embodiment of FIG. 1 in the construction that the support members consist of linear wedge-wires 5 extending in the axial direction of the screen 1 and arranged at a predetermined interval in the circumferential direction of the screen 1 so as to form shts 5a of a predetermined width.
  • the linear wedge-wires 5 perform a function of a filter in the screen in addition to the function of the support members supporting the spiral wedge- wire 3.
  • the embodiment of FIG. 2 is a triple-layer screen while the embodiment of FIG. 1 is a double-layer screen. Accordingly, in the embodiment of FIG.
  • the innermost linear wedge-wires 5 can continue to function as a screen and, accordingly, the life of the cylindrical screen can be prolonged as compared with the embodiment of FIG. 1
  • FIG. 4 shows another embodiment of the invention.
  • the cylindrical screen 20 in this embodiment further comprises an outer spiral wedge- wire 6 wound about the outside surface of the linear wedge-wires 4 of the embodiment of FIG. 1 so as to form a sht 6a of a predetermined width.
  • the outer spiral wedge-wire 6 is welded directly to the flat outside surface 4b of the linear wedge-wires 4.
  • the sht 6a of the outer spiral wedge-wire 6 widens toward the inside of the screen in the same manner as the sht 3a of the spiral wedge-wire 3.
  • This screen is a triple-layer screen and the life of the screen can be prolonged as compared with the embodiment of FIG. 1.
  • FIG. 5 shows another embodiment of the invention.
  • the cyhndrical screen 30 in this embodiment further comprises an outer spiral wedge-wire 6 wound about the outside surface of the hnear wedge-wires 4 of the embodiment of FIG. 2 so as to form a sht 6a of a predetermined width.
  • the outer spiral wedge-wire 6 is welded directly to the flat outside surface 4b of the hnear wedge-wires 4.
  • the sht 6a of the outer spiral wedge-wire 6 widens toward the inside of the screen in the same manner as the sht 3a of the spiral wedge-wire 3.
  • This screen is a quadruple-layer screen and the life of the screen can be prolonged as compared with the embodiment of FIG. 2.
  • FIG. 6 shows another embodiment of the invention.
  • the cyhndrical screen 40 of FIG. 6 further comprises a plurahty of outer linear wedge-wires 7 extending in the axial direction of the screen 40 and arranged at a predetermined interval in the circumferential direction of the screen40 so as to form shts 7a of a predetermined width on the outside of the outer spiral wedge-wire 6 of the embodiment of FIG. 4.
  • the outer linear wedge-wires 7 are welded directly to the flat outside surface 6b of the outer spiral wedge-wire 6.
  • the shts 7a of the outer linear wedge-wires 7 widen toward the inside of the screen in the same manner as the shts 4a of the hnear wedge-wires 4.
  • This cylindrical screen 40 is a quadruple-layer screen and the life of the screen can be prolonged as compared with the embodiment of FIG. 4.
  • FIG. 7 shows another embodiment of the invention.
  • the cyhndrical screen 50 of FIG. 7 further comprises a plurahty of outer linear wedge-wires 7 extending in the axial direction of the screen 50 and arranged at a predetermined interval in the circumferential direction of the screen 50 so as to form shts 7a of a predetermined width on the outside of the outer spiral wedge-wire 6 of the embodiment of FIG. 5.
  • the outer linear wedge-wires 7 are welded directly to the flat outside surface 6b of the outer spiral wedge-wire 6.
  • the shts 7a of the outer linear wedge-wires 7 widen toward the inside of the screen in the same manner as the shts 4a of the hnear wedge-wires 4.
  • This cylindrical screen 50 is a quintuple-layer screen and the life of the screen can be prolonged as compared with the embodiment of FIG. 5.
  • FIG. 8 shows another embodiment of the invention.
  • the cylindrical screen 60 comprises a perforated base pipe 8 formed with a plurahty of fluid collection holes 8a, a plurahty of support rods 2 extending in the axial direction of the screen 60 and arranged at a predetermined interval in the circumferential direction of the screen 60 on the outside of the perforated base pipe 8, a spiral wedge-wire 3 wound about the outside surface of the support rods 2 so as to form a sht a of a predetermined width, and a plurahty of hnear wedge-wires 4 extending in the axial direction of the screen 60 and arranged at a predetermined interval in the circumferential direction on the outside surface of the spiral wedge-wire 3 so as to form shts 4a of a predetermined width.
  • the linear wedge-wires 4 are welded directly to the flat surface 3b of the spiral wedge-wire 3.
  • FIG. 9 shows another embodiment of the invention.
  • a wire-mesh 9 which constitutes a filter member is interposed between the perforated base pipe 8 and the support rods 2.
  • a different filter material such as a filter cloth may be used instead of the wire-mesh 9.
  • FIG. 10 shows another embodiment of the invention.
  • the cylindrical screen 80 comprises a perforated base pipe 8 formed with a plurahty of fluid collection holes 8a, a plurahty of support rods 2 extending in the axial direction of the screen 80 and arranged at a predetermined interval in the circumferential direction of the screen 80 on the outside of the perforated base pipe 8, a spiral wedge-wire 3 wound about the outside surface of the support rods 2 so as to form a sht 3a of a predetermined width, and a plurahty of linear wedge-wires 11 extending in the axial direction of the screen 80 and arranged at a predetermined interval in the circumferential direction of the screen 80 so as to form shts 11a of a _ _ ⁇
  • the hnear wedge-wires 11 are arranged with a predetermined interval in the radial direction of the screen 80 from the outside surface of the spiral wedge-wire 3 and thereby define an annulus between the spiral wedge-wire 3 and the hnear wedge-wires 11.
  • An outer spiral wedge-wire 12 is wound on the outside of the linear wedge-wires 11 so as to form a sht 12a of a predetermined width and is welded directly to the outside ridgeline lie of the hnear wedge- wires 11.
  • FIG. 11 which show the linear wedge-wires 11 and the outer spiral wedge-wire 12 only, the inside of the linear wedge- ires 11 is formed as a flat surface lib.
  • spiral wedge-wire 3 and the hnear wedge-wires 11 are arranged in such a manner that their flat surfaces 3b and lib face each other, and gravel 13 is packed in the annulus between the spiral wedge-wire 3 and the hnear-wedge-wires 11.
  • the width of the shts of the respective wires constituting the multiple layered cylindrical screens is set at a proper value within the range from 0.1mm to 0.3mm suitable for achieving the object of the cyhndrical screens.
  • the cylindrical screen of the present invention can be utilized as a well screen for a horizontal or inclined well, particularly a well screen for a horizontal or inclined oil well.
  • the invention is capable of coping with erosion of a screen wire caused by collision of sand grains accompanying crude oil flowing into the well with the screen wire and thereby prolonging the life of the cyhndrical screen.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filtration Of Liquid (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

Ce tamis cylindrique pour puits horizontal ou incliné, qui possède une structure à plusieurs câbles profilés soudés, est pourvu de plusieurs tiges de support (2), s'étendant dans le sens axial et disposées à intervalles prédéterminés dans le sens de la circonférence, d'un câble profilé en spirale (3) s'enroulant sur la face extérieure des tiges de support (2) de manière à définir des rainures d'une largeur prédéterminée (3a), ainsi que de plusieurs câbles profilés en ligne (4), s'étendant dans le sens axial et disposés à intervalles prédéterminés dans le sens de la circonférence sur la face extérieure du câble profilé en spirale (3) afin de définir des rainures d'une largeur prédéterminée (4a). Les câbles profilés en ligne (4) sont soudés directement sur le câble profilé en spirale (3).
PCT/JP2003/004800 2002-04-26 2003-04-16 Tamis a sable a structure a plusieurs cables profiles et soudes Ceased WO2003091535A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003230238A AU2003230238A1 (en) 2002-04-26 2003-04-16 Sand screen having a multiple welded wedge-wire structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002125382A JP2003314183A (ja) 2002-04-26 2002-04-26 水平井戸または傾斜井戸用多重溶接構造スクリーン筒
JPNO.2002-125382 2002-04-26

Publications (1)

Publication Number Publication Date
WO2003091535A1 true WO2003091535A1 (fr) 2003-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/004800 Ceased WO2003091535A1 (fr) 2002-04-26 2003-04-16 Tamis a sable a structure a plusieurs cables profiles et soudes

Country Status (3)

Country Link
JP (1) JP2003314183A (fr)
AU (1) AU2003230238A1 (fr)
WO (1) WO2003091535A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011012177A1 (fr) * 2009-07-30 2011-02-03 Juergens Hauke M Filtre de contrôle d'écoulement
WO2016063185A1 (fr) * 2014-10-20 2016-04-28 Unislot Nv Filtre à liquide ou à gaz approprié pour l'élimination des impuretés filamenteuses
US9434026B2 (en) * 2014-10-02 2016-09-06 Baker Hughes Incorporated Subterranean screen assembly manufacturing method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7497257B2 (en) * 2006-05-04 2009-03-03 Purolator Facet, Inc. Particle control screen with depth filtration
KR101584437B1 (ko) 2014-05-27 2016-01-13 최양수 여과재 또는 어소로 적용 가능한 튜브
JP7404222B2 (ja) * 2020-12-21 2023-12-25 株式会社スギノマシン 超高圧フィルタ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346885A (en) * 1942-09-18 1944-04-18 Edward E Johnson Inc Deep well screen
USRE31604E (en) * 1970-10-02 1984-06-19 Standard Oil Company (Indiana) Multi-layer well screen
US4818403A (en) * 1985-12-27 1989-04-04 Nagaoka Kanaami Kabushiki Kaisha Double cylinder screen
EP0674095A2 (fr) * 1994-03-11 1995-09-27 Nagaoka International Corporation Filtre de puits avec élément enroulé
US5476588A (en) * 1993-01-18 1995-12-19 Nagaoka International Corporation Multi-layer composite screen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346885A (en) * 1942-09-18 1944-04-18 Edward E Johnson Inc Deep well screen
USRE31604E (en) * 1970-10-02 1984-06-19 Standard Oil Company (Indiana) Multi-layer well screen
US4818403A (en) * 1985-12-27 1989-04-04 Nagaoka Kanaami Kabushiki Kaisha Double cylinder screen
US5476588A (en) * 1993-01-18 1995-12-19 Nagaoka International Corporation Multi-layer composite screen
EP0674095A2 (fr) * 1994-03-11 1995-09-27 Nagaoka International Corporation Filtre de puits avec élément enroulé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011012177A1 (fr) * 2009-07-30 2011-02-03 Juergens Hauke M Filtre de contrôle d'écoulement
US9434026B2 (en) * 2014-10-02 2016-09-06 Baker Hughes Incorporated Subterranean screen assembly manufacturing method
WO2016063185A1 (fr) * 2014-10-20 2016-04-28 Unislot Nv Filtre à liquide ou à gaz approprié pour l'élimination des impuretés filamenteuses
BE1022594B1 (nl) * 2014-10-20 2016-06-13 Unislot Nv Vloeistof- of gasfilter geschikt voor het verwijderen van draadvormige onzuiverheden

Also Published As

Publication number Publication date
JP2003314183A (ja) 2003-11-06
AU2003230238A1 (en) 2003-11-10

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