JP2003314183A - Screen cylinder of multi-welding structure for horizontal well or directional well - Google Patents

Screen cylinder of multi-welding structure for horizontal well or directional well

Info

Publication number
JP2003314183A
JP2003314183A JP2002125382A JP2002125382A JP2003314183A JP 2003314183 A JP2003314183 A JP 2003314183A JP 2002125382 A JP2002125382 A JP 2002125382A JP 2002125382 A JP2002125382 A JP 2002125382A JP 2003314183 A JP2003314183 A JP 2003314183A
Authority
JP
Japan
Prior art keywords
screen
wedge wire
wire
spiral
predetermined width
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.)
Pending
Application number
JP2002125382A
Other languages
Japanese (ja)
Inventor
Tadayoshi Nagaoka
忠義 永岡
Original Assignee
Tadayoshi Nagaoka
忠義 永岡
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 Tadayoshi Nagaoka, 忠義 永岡 filed Critical Tadayoshi Nagaoka
Priority to JP2002125382A priority Critical patent/JP2003314183A/en
Publication of JP2003314183A publication Critical patent/JP2003314183A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/08Screens or liners
    • E21B43/088Wire screens

Abstract

(57) [Object] To provide a screen tube for a horizontal well or an inclined well that can prevent sand from entering the screen for a long period of time. A plurality of support rods (2) extending in the axial direction of the screen and arranged at predetermined intervals in a circumferential direction of the screen, and a slit (3a) having a predetermined width outside the support rod (2) are formed. Spiral wedge wire (3) wound around support rod (3)
And a plurality of linear wedge wires (4) extending in the axial direction of the screen outside the spiral wedge wire (3) and arranged so as to form slits (4a) having a predetermined width in the circumferential direction of the screen. Wherein the straight wedge wire (4) is directly welded to the helical wedge wire (3).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen for horizontal or inclined wells, in particular for horizontal or inclined wells in oil fields, in which a grain of sand, which is about to flow with crude oil, impinges on the screen wire. It is intended to deal with the erosion of the wire by.

[0002]

2. Description of the Related Art In recent years, instead of a vertical well formed by vertically excavating from the ground surface toward an oil layer in a well for collecting crude oil, as shown in FIG. 12, a vertical portion 100a and a curved portion 100b are used. Then, a horizontal well or an inclined well 10 is formed by excavating a horizontal portion or an inclined portion 100c extending horizontally or obliquely along the oil layer.
0 tends to increase. According to such a horizontal well or inclined well, since the screen portion for collecting crude oil has a length several times as long as that of the vertical well, the production efficiency of crude oil reaches proportionally to several times that of the vertical well. There is an advantage called.

[0003]

Generally, there is a large gap between the well hole and the screen cylinder, and when crude oil is pumped into the well, sand grains flow out from the oil layer together with the crude oil and collide with the slit portion of the screen. Due to the phenomenon of sand particles colliding with the screen, the wires of the screen are eroded during use of the screen for a long period of time, and the original purpose of preventing the sand from entering the screen is lost. Will end up.

In order to prevent the erosion of the screen due to such sand, in the vertical well, the gravel 140 is filled in the gap between the well hole 120 and the screen cylinder 130 as shown in the sectional view of FIG. Even if the sand flows in the well in the direction of arrow B, the sand of the oil layer does not move and therefore does not collide with the screen.

However, in the horizontal well or the inclined well, the technique of filling the gravel between the well hole and the screen cylinder has not been developed, so that the sectional view of FIG.
As shown in FIG. 14 (a) AA cross-sectional view of FIG. 4 (b), in the horizontal portion 100 (c), a cavity 150 is formed between the top of the screen cylinder 130 and the well wall 120, and a flow of crude oil is generated.
The erosion due to the collision of the sand from the sand layer 160 with the screen due to B is unavoidable, and there is currently no effective means for preventing the sand from entering the screen during long-term use of the screen.

The present invention has been made to solve the above problems in horizontal wells or inclined wells. Even if a screen is used for a long period of time in a horizontal well or inclined well, sand will flow into the screen. It is intended to provide a screen cylinder for horizontal wells or inclined wells that can prevent the above.

[0007]

A multi-welded structure screen cylinder for horizontal wells or inclined wells of the present invention which achieves the above object,
A plurality of support members extending in the axial direction of the screen and arranged at predetermined intervals in the circumferential direction of the screen, and a spiral wound around the support member so as to form slits of a predetermined width outside the support members. A wedge wire and a plurality of linear wedge wires arranged outside the spiral wedge wire so as to extend in the axial direction of the screen and form slits of a predetermined width in the circumferential direction of the screen, The straight wedge wire is characterized in that it is directly welded to the spiral wedge wire.

In one aspect of the invention, the support member is a support rod. In another aspect of the invention,
The support member is a plurality of linear wedge wires extending in the axial direction of the screen and arranged so as to form slits of a predetermined width in the circumferential direction of the screen.

In another aspect of the present invention, a screen cylinder is wound around the straight wedge wire and forms a slit having a predetermined width outside the straight wedge wire, and is directly attached to the straight wedge wire. The method further comprises a welded outer spiral wedge wire.

In another aspect of the present invention, the screen tube is arranged outside the outer spiral wedge wire so as to extend in the axial direction of the screen and form a slit having a predetermined width in the circumferential direction of the screen. The method further comprises a plurality of outer straight wedge wires, the straight outer wedge wires being directly welded to the outer spiral wedge wires.

In another aspect of the present invention, a multi-welded structure screen cylinder for horizontal wells or inclined wells has a perforated base pipe having a large number of liquid collection holes formed therein, and a screen outside the perforated base pipe. A plurality of support members extending in the axial direction of the screen and arranged at predetermined intervals in the circumferential direction of the screen, and a spiral shape wound around the support members so as to form slits of a predetermined width outside the support members. A wedge wire, and a plurality of linear wedge wires extending outside the spiral wedge wire in the axial direction of the screen and arranged so as to form slits of a predetermined width in the circumferential direction of the screen,
The straight wedge wire is directly welded to the spiral wedge wire.

A filter material such as a wire mesh or a filter cloth may be interposed between the perforated base pipe and the support member.

In another aspect of the present invention, a multi-weld structure screen cylinder for horizontal wells or inclined wells is provided with a perforated base pipe having a large number of liquid collection holes, and a screen outside the perforated base pipe. A plurality of support members extending in the axial direction of the screen and arranged at predetermined intervals in the circumferential direction of the screen, and a spiral shape wound around the support members so as to form slits of a predetermined width outside the support members. A wedge wire and a plurality of wires arranged outside the spiral wedge wire at a distance from the spiral wedge wire to extend in the axial direction of the screen and to form a slit having a predetermined width in the circumferential direction of the screen. A linear wedge wire and the linear wedge wire with a slit having a predetermined width formed outside the linear wedge wire. An outer spiral wedge wire wound around a wire and directly welded to the straight wedge wire, the spiral wedge wire and the straight wedge wire being arranged such that their smooth surfaces are opposite to each other, The annular space formed between the spiral wedge wire and the straight wedge wire is filled with a gravel.

[0014]

According to the multiple welded structure screen cylinder of the present invention,
When using the screen cylinder for a long time, even if the outer wire has a hole due to erosion due to sand collision, the inner wire can prevent sand from entering, so fill the gravel between the well hole and the screen cylinder. Without doing so, it is possible to prevent sand from entering the screen for a long period of time. Also, since the outer wire is directly welded to the inner wire without going through the support rod, the inner wire acts as a support rod for the outer wire, and despite the screen's multiple structure, the thickness of the screen Can be small. Therefore, even if a screen having an outer diameter suitable for the dug well hole is installed, the inner diameter of the screen does not become small, resulting in a well with high productivity.

Further, in the structure in which the support member in the innermost layer is a linear wedge wire, the support member has both a function as a support member for the spiral wedge wire and a screen function, so that the life of the screen is further extended. You can

Further, in the structure in which the outermost wedge wire is composed of the straight wedge wire, when the screen cylinder is inserted into the long horizontal well, the sliding is improved, and the screen inserting operation can be performed easily and quickly. .

Further, in a construction in which a filter material such as a wire mesh or a filter cloth is interposed between the perforated base pipe and the support member, the sand having the minimum particle diameter which must stop the intrusion of the sand in the oil layer. By selecting the filter material so that the wedge wire is stopped by the filter material, the slit of the wedge wire can have a slit width adapted to a larger particle diameter, and the inflow amount of crude oil can be increased while preventing the inflow of sand. . Further, since a larger slit width can be selected, a wedge wire having a larger diameter can be used, and the mechanical strength of the screen can be increased accordingly.

Further, in a construction (a gravel pack screen) in which an annular space formed between the spiral wedge wire and the straight wedge wire is filled with the gravel, the spiral wedge wire and the straight wedge wire are different from each other. Since the smooth surfaces are arranged so as to face each other,
The gravel that fills the space between them is smoothly filled, and there is no risk of cavities not filled with gravel, and a complete gravel pack screen can be constructed.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a multi-welded structure screen cylinder for horizontal or inclined wells according to the present invention.
FIG. 3 is a perspective view showing an embodiment, and FIG. 3 is an enlarged view showing a part thereof.

In the present embodiment, the screen cylinder 1 is
A plurality of support rods 2 extending in the axial direction of the screen cylinder 1 and arranged at predetermined intervals in the circumferential direction of the screen cylinder 1.
And a spiral wedge wire 3 wound around the support rod 2 so as to form a slit 3a having a predetermined width on the outside of the support rod 2, and an axial direction of the screen cylinder 1 on the outside of the spiral wedge wire 3. And a plurality of linear wedge wires 4 arranged so as to form slits 4a having a predetermined width in the circumferential direction of the screen cylinder 1, and these linear wedge wires 4 are outside the spiral wedge wire 3. It is directly welded to the smooth surface 3b.

The support rod 2 constitutes a support member for supporting the spiral wedge wire 3. In the illustrated example, the support rod 2 is made of a steel material having a circular cross section, but it has another cross section such as a polygon. It may be one. The support rods 2 are arranged in a cylindrical shape as a whole at predetermined intervals in the circumferential direction.

On the outside of the support rod 2, a spiral wedge wire 3 is spirally wound in a direction substantially orthogonal to the support rod 2. Spiral wedge wire 3
As is apparent from FIG. 3, the smooth one side 3b faces outward, and the other two sides 3c and 3d form a slit 3a that expands inward between adjacent wire portions. And is welded to the support rod 2 at the apex 3e inside thereof. The axial width of the slit 3a of the spiral wedge wire 3 is set to be smaller than the axial width of the outer surface 3b in the same plane as the smooth outer surface 3b.

As is apparent from FIG. 3, the straight wedge wire 4 also has its smooth one side 4b directed outward, and the other two sides 4c and 4d are adjacent to adjacent wire portions, as is the case with the spiral wedge wire 3. Is arranged so as to form a slit 4a that expands inwardly between the two, and is welded to the outer smooth surface 3b of the spiral wedge wire 3 at the apex 4e inside thereof.

FIG. 2 is a perspective view showing another embodiment of the screen cylinder according to the present invention. 2 and subsequent embodiments, the same components as those of the embodiment of FIG. 1 are denoted by the same reference numerals as those of FIG. 1, and description thereof will be omitted.

In the embodiment shown in FIG. 2, a plurality of linear wedge wires arranged so that the support member extends in the axial direction of the screen cylinder 10 and forms the slit 5a having a predetermined width in the circumferential direction of the screen cylinder 10. 5 in that it differs from the embodiment of FIG. That is, the linear wedge wire 5 serves not only as a support member for supporting the spiral wedge wire 3 but also as a filter function as a screen, whereas the embodiment of FIG. 1 is a double screen. The embodiment of FIG. 2 is a triple screen. Therefore, in the embodiment of FIG.
Even if the outermost linear wedge wire 4 and the intermediate helical wedge wire 3 are pierced by erosion due to colliding sand, the innermost linear wedge wire 5 can still function as a screen. The life of the screen can be extended as compared with the embodiment of FIG.

FIG. 4 is a perspective view showing another embodiment of the screen cylinder of the present invention. The screen cylinder 20 of FIG. 4 is wound around the linear wedge wire 4 so as to form a slit 6a having a predetermined width on the outer side of the linear wedge wire 4 in the embodiment of FIG. 1 and the outside of the linear wedge wire 4. It further comprises an outer spiral wedge wire 6 directly welded to the smooth surface 4b. The slit 6a of the outer spiral wedge wire 6 is widened toward the inside like the slit 3a of the spiral wedge wire 3. Since this screen is a triple screen, the life of the screen can be extended as compared with the embodiment of FIG.

FIG. 5 is a perspective view showing another embodiment of the screen cylinder of the present invention. The screen cylinder 30 of FIG. 5 is wound around the linear wedge wire 4 so as to form a slit 6a having a predetermined width on the outside of the linear wedge wire 4 in the embodiment of FIG. 2 and the outside of the linear wedge wire 4. It further comprises an outer spiral wedge wire 6 directly welded to the smooth surface 4b. The slit 6a of the outer spiral wedge wire 6 is widened toward the inside like the slit 3a of the spiral wedge wire 3. This screen is a quadruple screen, and the life of the screen can be extended as compared with the embodiment of FIG.

FIG. 6 is a perspective view showing another embodiment of the screen cylinder of the present invention. The screen cylinder 40 of FIG. 6 extends in the axial direction of the screen cylinder 40 on the outer side of the outer spiral wedge wire 6 in the embodiment of FIG. 4 and forms a slit 7a having a predetermined width in the circumferential direction of the screen cylinder 40. Further comprising a plurality of outer linear wedge wires 7 arranged in an array, the linear outer wedge wires 7 being directly welded to the outer smooth surface 6b of the outer spiral wedge wire 6. The slit 7a of the outer linear wedge wire 7 widens inward similarly to the slit 4a of the linear wedge wire 4. This screen cylinder 40 is 4
Since it is a heavy screen, the life of the screen can be further extended as compared with the embodiment of FIG.

FIG. 7 is a perspective view showing another embodiment of the screen cylinder of the present invention. The screen cylinder 50 of FIG. 7 extends in the axial direction of the screen cylinder 50 outside the outer spiral wedge wire 6 in the embodiment of FIG. 5 and forms a slit 7a having a predetermined width in the circumferential direction of the screen cylinder 50. Further comprising a plurality of outer linear wedge wires 7 arranged in an array, the linear outer wedge wires 7 being directly welded to the outer smooth surface 6b of the outer spiral wedge wire 6. The slit 7a of the outer linear wedge wire 7 widens inward similarly to the slit 4a of the linear wedge wire 4. This screen cylinder 50 has 5
It is a heavy screen, and the life of the screen can be further extended as compared with the embodiment of FIG.

FIG. 8 is a perspective view showing another embodiment of the screen cylinder of the present invention. In this embodiment, the screen cylinder 60 includes a perforated base pipe 8 in which a large number of liquid collection holes 8a are formed, and an outer side of the perforated base pipe 8 that extends in the axial direction of the screen cylinder 60 and has a screen cylinder. A plurality of support rods 2 arranged at a predetermined interval in the circumferential direction of 60, and a spiral wedge wire 3 wound around the support rod 2 so as to form slits 3a having a predetermined width on the outer side of the support rods 2. A plurality of linear wedge wires 4 arranged outside the spiral wedge wire 3 so as to extend in the axial direction of the screen cylinder 60 and form slits 4a having a predetermined width in the circumferential direction of the screen cylinder 60. The straight wedge wire 4 is directly welded to the smooth surface 3b of the spiral wedge wire 3. The strength of the screen cylinder 60 is reinforced by providing the perforated base pipe 8.

Instead of the support rod 2, a linear wedge wire 5 may be used as a support member as shown in FIG.

FIG. 9 is a perspective view showing another embodiment of the screen cylinder of the present invention. In this embodiment, the screen cylinder 70 includes the perforated base pipe 8 and the support rod 2.
A wire net 9 is interposed as a filter medium between the and. Instead of the wire net 9, another filter material such as a filter cloth may be used.

FIG. 10 is a perspective view showing another embodiment of the present invention. In this embodiment, the screen tube 80
Is a perforated base pipe 8 in which a large number of liquid collection holes 8a are formed, and extends outside the perforated base pipe 8 in the axial direction of the screen cylinder 80 and at predetermined intervals in the circumferential direction of the screen cylinder 80. Multiple support rods arranged 2
And a spiral wedge wire 3 wound around the support rod 2 so as to form a slit 3a having a predetermined width on the outside of the support rod 2, and a space between the spiral wedge wire 3 and the spiral wedge wire 3 on the outside of the spiral wedge wire 3. And a plurality of linear wedge wires 11 arranged so as to extend in the axial direction of the screen cylinder 80 and form slits 11a of a predetermined width in the circumferential direction of the screen cylinder 80, and the linear wedge wires 11 of these linear wedge wires 11. The outer spiral wedge wire 12 is wound around the straight wedge wire 11 so as to form a slit 12a having a predetermined width on the outer side, and is directly welded to the outer ridgeline 11c of the straight wedge wire 11. FIG. 11 showing only the straight wedge wire 11 and the outer spiral wire 12
As is clear from the above, the inner surface of the linear wedge wire 11 is a smooth surface 11b. The spiral wedge wire 3 and the straight wedge wire 11 have smooth surfaces 3 thereof.
b and 11b are arranged so as to face each other, and a gravel 13 is filled in an annular space formed between the spiral wedge wire 3 and the straight wedge wire 11.

In each of the above embodiments, the width of the slit of each screen constituting the multiple screen is 0.1 mm to
It is set to an appropriate value within the range of 0.3 mm according to the purpose of the screen.

[0035]

As described above, according to the present invention, when the screen wire is used for a long period of time, even if the outer wire is pierced by the erosion due to the collision of sand, the inner wire prevents the sand from entering. Therefore, it is possible to prevent sand from entering the screen for a long time without filling the gravel between the well hole and the screen cylinder. Also, because the outer wire is directly welded to the inner wire without going through the support rod, the inner wire acts as a support rod for the outer wire, and despite the screen's multiple structure, the inner diameter of the screen Can be large. Therefore, it is possible to provide a well-finishing well finish which is a screen having a long life.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is an enlarged perspective view showing a part of the embodiment of FIG.

FIG. 4 is a perspective view showing another embodiment of the present invention.

FIG. 5 is a perspective view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a perspective view showing another embodiment of the present invention.

FIG. 9 is a perspective view showing another embodiment of the present invention.

FIG. 10 is a perspective view showing another embodiment of the present invention.

11 is a perspective view showing a portion of the embodiment of FIG.

FIG. 12 is a sectional view schematically showing a horizontal well.

FIG. 13 is a cross-sectional view showing a state of gravel filling in a vertical well.

FIG. 14 is a cross-sectional view showing a state of a screen in a horizontal well.

[Explanation of symbols]

2 Support rod 3 spiral wedge wire 4 straight wedge wire 5 Straight wedge wire (support member) 6 Outer spiral wedge wire 7 Outside straight wedge wire 8 perforated base pipe 9 Wire mesh (filter material) 11 Straight wedge wire 12 Outside spiral wedge wire 13 Gravel

Claims (12)

[Claims]
1. 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, and slits having a predetermined width formed outside the support members. A wound spiral wedge wire, and a plurality of linear wedge wires arranged so as to extend in the axial direction of the screen outside the spiral wedge wire and form slits of a predetermined width in the circumferential direction of the screen. And the straight wedge wire is directly welded to the spiral wedge wire.
2. The screen cylinder according to claim 1, wherein the support member is a support rod.
3. The support member is a plurality of linear wedge wires arranged so as to extend in the axial direction of the screen and form slits of a predetermined width in the circumferential direction of the screen. 1. The screen cylinder described in 1.
4. An outer spiral wedge wire wound around the straight wedge wire and welded directly to the straight wedge wire so as to form a slit having a predetermined width on the outer side of the straight wedge wire. The screen cylinder according to claim 1, further comprising:
5. The screen cylinder according to claim 4, wherein the support member is a support rod.
6. The support member is a plurality of linear wedge wires arranged so as to extend in the axial direction of the screen and form slits of a predetermined width in the circumferential direction of the screen. 1. The screen cylinder described in 1.
7. A plurality of outer linear wedge wires arranged so as to extend in the axial direction of the screen outside the outer spiral wedge wire and form slits of a predetermined width in the circumferential direction of the screen. 5. The screen cylinder according to claim 4, wherein the straight outer wedge wire is directly welded to the outer spiral wedge wire.
8. The screen cylinder according to claim 7, wherein the support member is a support rod.
9. The support member is a plurality of linear wedge wires which are arranged so as to extend in the axial direction of the screen and form slits of a predetermined width in the circumferential direction of the screen. 7. The screen cylinder described in 7.
10. A perforated base pipe in which a large number of liquid collection holes are formed, and a plurality of base pipes extending outside the perforated base pipe in the axial direction of the screen and arranged at predetermined intervals in the circumferential direction of the screen. Support member, a spiral wedge wire wound around the support member so as to form a slit of a predetermined width outside the support member, and extending in the axial direction of the screen outside the spiral wedge wire. And a plurality of linear wedge wires arranged so as to form a slit having a predetermined width in the circumferential direction of the screen, wherein the linear wedge wires are directly welded to the spiral wedge wire. Multiple welded structure screen cylinder for horizontal or inclined wells.
11. The screen cylinder according to claim 10, wherein a filter material such as a wire mesh or a filter cloth is interposed between the perforated base pipe and the support member.
12. A perforated base pipe in which a large number of liquid collection holes are formed, and a plurality of base pipes extending outside the perforated base pipe in the axial direction of the screen and arranged at predetermined intervals in the circumferential direction of the screen. Of the support member, a spiral wedge wire wound around the support member so as to form a slit having a predetermined width on the outside of the support member, and a space between the spiral wedge wire and the spiral wedge wire on the outside of the spiral wedge wire. A plurality of linear wedge wires that are arranged so as to extend in the axial direction of the screen and form slits of a predetermined width in the circumferential direction of the screen, and slits of a predetermined width outside the linear wedge wires. An outer spiral wedge wound around the straight wedge wire as formed and welded directly to the straight wedge wire. A spiral wire, the spiral wedge wire and the straight wedge wire are arranged such that their smooth surfaces face each other, and an annular space formed between the spiral wedge wire and the straight wedge wire. A multi-welded structure screen cylinder for horizontal or inclined wells, which is filled with gravel.
JP2002125382A 2002-04-26 2002-04-26 Screen cylinder of multi-welding structure for horizontal well or directional well Pending JP2003314183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002125382A JP2003314183A (en) 2002-04-26 2002-04-26 Screen cylinder of multi-welding structure for horizontal well or directional well

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002125382A JP2003314183A (en) 2002-04-26 2002-04-26 Screen cylinder of multi-welding structure for horizontal well or directional well
AU2003230238A AU2003230238A1 (en) 2002-04-26 2003-04-16 Sand screen having a multiple welded wedge-wire structure
PCT/JP2003/004800 WO2003091535A1 (en) 2002-04-26 2003-04-16 Sand screen having a multiple welded wedge-wire structure

Publications (1)

Publication Number Publication Date
JP2003314183A true JP2003314183A (en) 2003-11-06

Family

ID=29267560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002125382A Pending JP2003314183A (en) 2002-04-26 2002-04-26 Screen cylinder of multi-welding structure for horizontal well or directional well

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009504949A (en) * 2006-05-04 2009-02-05 ピューロレータ ファセット, インク. Particle control screen with depth filtration
KR101584437B1 (en) 2014-05-27 2016-01-13 최양수 Tube available for filtering member and fish nest

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035315B4 (en) * 2009-07-30 2011-04-21 Jürgens, Hauke Matthias Filter
US9434026B2 (en) * 2014-10-02 2016-09-06 Baker Hughes Incorporated Subterranean screen assembly manufacturing method
BE1022594A1 (en) * 2014-10-20 2016-06-13 Unislot Nv Liquid or gas filter suitable for removing wireless impacts

Family Cites Families (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
JPH0154516B2 (en) * 1985-12-27 1989-11-20 Nagaoka Kinmo Kk
JP3396246B2 (en) * 1993-01-18 2003-04-14 株式会社ナガオカ Multilayer composite screen
JP3426334B2 (en) * 1994-03-11 2003-07-14 株式会社ナガオカ Coiled well screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009504949A (en) * 2006-05-04 2009-02-05 ピューロレータ ファセット, インク. Particle control screen with depth filtration
JP4746101B2 (en) * 2006-05-04 2011-08-10 ピューロレータ ファセット, インク. Particle control screen with depth filtration
KR101584437B1 (en) 2014-05-27 2016-01-13 최양수 Tube available for filtering member and fish nest

Also Published As

Publication number Publication date
AU2003230238A1 (en) 2003-11-10
WO2003091535A1 (en) 2003-11-06

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