CN101824977A - Oil/gas exploitation pipe and manufacturing method thereof - Google Patents
Oil/gas exploitation pipe and manufacturing method thereof Download PDFInfo
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- CN101824977A CN101824977A CN200910127209A CN200910127209A CN101824977A CN 101824977 A CN101824977 A CN 101824977A CN 200910127209 A CN200910127209 A CN 200910127209A CN 200910127209 A CN200910127209 A CN 200910127209A CN 101824977 A CN101824977 A CN 101824977A
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- parent tube
- gas exploitation
- sand control
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Abstract
The invention provides an oil/gas exploitation pipe and a manufacturing method thereof. The oil/gas exploitation pipe comprises a base pipe and a sand-control sieving sleeve, wherein the base pipe is provided at least one restricting sieve area; connecting areas are arranged at the two ends of the base pipe, so that a plurality of base pipes can be in end-to-end connection to form an oil/gas exploitation pipe column; the sand-control sieving sleeve corresponding to the restricting sieve area is sleeved outside the base pipe and fixedly connected with the base pipe; a strip-shaped filter board is particularly a pipe fitting formed by spirally bending a filter board along the inner surface thereof to define a pipe diameter, materially sealing the relatively long side of the strip-shaped filter board and spirally end-turning; a plurality of countersink type circulating holes formed by stamping the strip-shaped filter board towards the direction of the inner surface thereof are formed on the outer surface thereof before the strip-shaped filter board is spirally bent; and circulating gaps for oil/gas fluid having the proper width are formed on the walls of the circulating holes, so as to separate sand and stone from the oil/gas fluid. The product and the manufacturing process thereof have the advantages of lower cost, corrosion resistance and good circulation capacity. Therefore, the oil/gas exploitation pipe is suitable for not only vertical wells and directional wells, but also the mass production of horizontal wells.
Description
Technical field
The present invention relates to a kind of oil/gas exploitation pipe, particularly in the oil-gas mining process, have the exploitation pipe and the manufacture method thereof of oil-sand separation function.
Background technology
At present, in petroleum industry oil-gas mining process in order to prevent that sand production of oil-gas wells from causing sleeve pipe, device damage and causing the underproduction, adopts cutting seam sieve tube, the wire-wrapped screen sand control more.
Cutting seam sieve tube is to adopt blade or laser cutting to go out the narrow slit of certain-length certain width.Its process equipment complexity and efficient are low; Product sand control precision is not high, perishable, the life-span is not long; The product aperture area is little, is generally 1% to 6%, and the fluid trafficability characteristic is poor.To be used for output lower more, and it is not serious to shake out, and the particle that shakes out is big and need in the well that the stratum supports.
Wire-wrapped screen is to turn to the filter screen with V-type seam with the triangle stainless steel wire, and cover is welded on the sleeve pipe that has bored the hole again.Because wire-wrapped screen adopts the screen jacket of stainless steel as crossing filter ruffle, has corrosion-resistant good characteristics; The aperture area of wire-wrapped screen is generally 8% to 30% simultaneously, and the fluid trafficability characteristic is better.But its complex process, cost are higher; Meet the easy sealing-off of high temperature, can not adapt to thermal production well; Because it crosses the yielding sand control ability that loses of filter ruffle, can not bear bigger bending simultaneously, not be suitable for the horizontal well operation.Usually be used in straight well at present, the cased hole gravel packing sand control treatment of directional well.
Therefore seek and a kind ofly can replace above two kinds of screen casings, processing technology is good, and cost is lower, and is corrosion-resistant, and circulation is good, can satisfy the straight well directional well and use the sand control screen that can satisfy the horizontal well use of large-scale production again to become the task of top priority.
Summary of the invention
The invention provides a kind of oil/gas exploitation pipe and manufacture method thereof for solving the problems of the technologies described above.
Wherein oil/gas exploitation pipe comprises: be provided with the parent tube of an overcurrent eyelet area at least, described parent tube two ends are provided with join domain, so that a plurality of described parent tube can be end to end to form the mining tubular column of suitable length; Be placed in outside the described parent tube and the sand control screen jacket of fixedlying connected with described overcurrent eyelet area is corresponding with described parent tube; Wherein said sand control screen jacket serve as reasons banded filter plate through along the inner surface helical buckling of filter plate forming caliber, and the pipe fitting that the spiral boxing of the long relatively limit substantial seal of described banded filter plate is formed.
Described banded filter plate is provided with a plurality of hole countersunk openings by forming towards its inner surface direction punching press on its external surface before helical buckling, on the hole wall of described opening, be provided with the hydrocarbon fluids circulation slit of proper width, so that change the hydrocarbon fluids flow direction, reduce flow velocity, alleviate fluid erosion, and make hydrocarbon fluids enter the inside of screen casing and sandstone is isolated.Wherein preferably, described opening is the longitudinal section bridge-type counterbore of shape in echelon, is provided with the described hydrocarbon fluids circulation slit that forms through punching press near the bottom, hole on the relative long side wall surface of described counterbore.Wherein said opening is the longitudinal section bridge-type counterbore of shape in echelon preferably, is provided with the fluid flow slit through being stamped to form on the long relatively side wall surface of counterbore.The width dimensions in described circulation slit can be 0.1mm-1.5mm to adapt to different underground sandstone sizes.
As further improvement, described parent tube can have a plurality of overcurrent eyelet area, and the present invention preferably adopts a plurality of described screen casings corresponding with it, forms multistage connection.
Simultaneously, reaching the making step of above-mentioned technical characterictic, promptly make banded filter plate, and with its spiral welding coiled sand control screen jacket, also is disclosed technology contents with the fixing preparation method of the above-mentioned corresponding welding of parent tube again.
Advantage of the present invention is exactly, and has oil gas and impacts for a short time, corrosion-resistant, and aperture area is big, production efficiency is high, characteristics such as intensity height, sand block are effective, reliability height, and the spiral welding procedure of the Cai Yonging cost that both saved material is convenient to large-scale processing again simultaneously.These will specifically be set forth in the back.
Description of drawings
Fig. 1 is the semi-section schematic diagram of first implementation column of the present invention;
Fig. 2 is the semi-section schematic diagram of second implementation column of the present invention;
Fig. 3 is the partial perspective view of banded filter plate among the present invention;
Fig. 4 is the front schematic view of sand control screen jacket among the present invention.
The specific embodiment
What Fig. 1 showed is the semi-section schematic diagram of first implementation column of the present invention, and one-level connects the form that cooperates, and promptly only has a sand control screen jacket 2 and cooperates with one on the parent tube 1 corresponding overcurrent eyelet 6 zones.Technical data as preferential parent tube:
Outside dimension series is: 60.3mm, 73.0mm, 88.9mm, 101.6mm, 114.3mm, 127.0mm, 139.7mm, 168.3mm, 177.8mm;
Parent tube grade of steel series: J55, K55, N80, L80, P110,13Cr;
Overcurrent eyelet diameter series: 9.5mm, 12.7mm, 15.8mm;
Overcurrent perforation density: 160-600 hole/rice.
As shown in Figure 1, oil/gas exploitation pipe 10 comprises a parent tube 1 that is provided with overcurrent eyelet 6 zones, and described parent tube 1 two ends are provided with external screw thread 4 as join domain.An end of parent tube 1 is connecting the box cupling 5 with internal thread among the figure, adopt a plurality of described parent tubes of similar structure can be end to end to form the mining tubular column of suitable length.The zone is corresponding is placed in outside the described parent tube 1 and the sand control screen jacket 2 of fixedlying connected with described parent tube 1 with described overcurrent eyelet 6.Be provided with a pair of end ring 3 near overcurrent eyelet 6 location on the described parent tube 1, the distance that the length of sand control screen jacket 2 and described end ring are 3 adapts, so that the two ends of described sand control screen jacket 2 are fixed with described end ring 3 by welding.
What Fig. 2 showed is the semi-section schematic diagram of second implementation column of the present invention, and secondary connects the form that cooperates, and has two sand control screen jackets 2 among the figure and cooperates with two on the parent tube 1 corresponding overcurrent eyelet 6 zones.The connected mode of this secondary is strengthened the on-the-spot adaptive capacity of this product greatly, operates easier.
Fig. 4 is the front schematic view of sand control screen jacket among the present invention.In conjunction with installation drawing illustrated in figures 1 and 2 as seen, wherein said sand control screen jacket 2 serve as reasons banded filter plate 20 (see figure 3)s through along inner surface 201 helical bucklings of filter plate 20 to form caliber, and the sand control screen jacket 2 of the pipe fitting that the spiral boxing of long relatively limit 203 substantial seal of described banded filter plate 20 is formed, owing to adopt the spiral welding procedure, both be beneficial to the cost that saves material, be convenient to large-scale processing again, also have advantages of high strength simultaneously.
The partial perspective view of banded filter plate 20 among Fig. 3 the present invention, banded as seen from the figure filter plate 20 is that helical buckling does not also weld the preceding architectural feature of typing.Described banded filter plate 20 preferably material is 304, and the stainless steel material of 316L, its thickness are 1.2mm, 1.5mm or 2.0mm.Before helical buckling, on its external surface 202, be provided with a plurality of hole countersunk openings 7 by forming towards its inner surface 201 direction punching presses, the bottom 8 in hole 7 is to recessed, and is promptly recessed to inner surface 201 directions.On the hole wall of described opening 7, be provided with the hydrocarbon fluids circulation slit 9 of proper width, so that change hydrocarbon fluids (not shown) flow direction, reduce flow velocity, alleviate fluid erosion, and make hydrocarbon fluids enter the inside of sand control screen jacket 2 and the sandstone (not shown) is isolated.
Wherein preferably: opening 7 is the longitudinal section bridge-type counterbore of shape in echelon, is being provided with the described hydrocarbon fluids circulation slit 9 that forms through punching press near 8 places at the bottom of the hole on the relative long side wall surface of described counterbore.The opening 7 of bridge-type hole countersunk and be positioned at circulation slit 9 on the side wall surface and can adopt that Sheet Metal Forming Technology is disposable to process simultaneously, these fluid flow slit 9 width can accurately be controlled by punching press, it stitches wide can the design according to the particle size of oil gas well reservoir sand, both can play the effect that stops that reservoir sand enters, can be used as the output passage of oil gas again.The preferred size that the present invention proposes is described opening length: 8-15mm, width: 2-5mm, described circulation gap width: 0.1mm-1.5mm.
With this sand control screen jacket 2 be: the bridge-type counterbore of the about 20mm part in sand control screen jacket 2 two ends is flattened by hydraulic action to recessed base with the optimal way that parent tube 1 installs and fixes; Respectively end ring is inserted in the both ends of sand control screen jacket 2, enters about 20mm, be one by the CO2 shield welder weldering then.
As an index of the production efficiency of oil-gas mining, the aperture area rate of exploitation pipe is extremely important, described aperture area rate=(gross area in described circulation slit)/(described sand control screen surface area).Be understandable that aperture area more senior general help entering of oil gas more, but excessive slit will make that also sandstone enters.And the introduction by the invention described above, adopt the sand control screen 2 of said structure and size, can prevent effectively that sandstone from entering, can on sand control screen jacket 2, form a plurality of openings 7 simultaneously, to reach the aperture area rate that is suitable for enhancing productivity with fluid flow slit 9.After adopting said structure, aperture area rate of the present invention can reach 20-30%, when preventing that sandstone from entering, guarantee the production efficiency of oil-gas mining.
The multiple functional structure and the embodiment that are disclosed among the present invention all obtain embodying and protection by claim, and any resulting enlightenment of drawings and Examples shown in according to the present invention is among the scope that all falls into the present invention and protected.
Claims (10)
1. oil/gas exploitation pipe comprises:
At least be provided with the parent tube of an overcurrent eyelet area, described parent tube two ends are provided with join domain, so that a plurality of described parent tube can be end to end to form the mining tubular column of suitable length;
Be placed in outside the described parent tube and the sand control screen jacket of fixedlying connected with described overcurrent eyelet area is corresponding with described parent tube;
Wherein said sand control screen jacket serve as reasons banded filter plate through along the inner surface helical buckling of filter plate forming caliber, and the pipe fitting that the spiral boxing of the long relatively limit substantial seal of described banded filter plate is formed.
2. oil/gas exploitation pipe as claimed in claim 1 is characterized in that: described banded filter plate is a stainless steel material, and its thickness is 1.2mm, 1.5mm or 2.0mm.
3. oil/gas exploitation pipe as claimed in claim 1, it is characterized in that: described banded filter plate is before helical buckling, be provided with a plurality of hole countersunk openings on its outer surface by forming towards its inner surface direction punching press, on the hole wall of described opening, be provided with the hydrocarbon fluids circulation slit of proper width, so that change the hydrocarbon fluids flow direction, reduce flow velocity, alleviate fluid erosion, and make hydrocarbon fluids enter the inside of screen casing and sandstone is isolated.
4. oil/gas exploitation pipe as claimed in claim 3 is characterized in that: described opening is the longitudinal section bridge-type counterbore of shape in echelon, is provided with the described hydrocarbon fluids circulation slit that forms through punching press near the bottom, hole on the relative long side wall surface of described counterbore.
5. oil/gas exploitation pipe as claimed in claim 4 is characterized in that: described opening length: 8-15mm, width: 2-5mm, described circulation gap width: 0.1mm-1.5mm.
6. oil/gas exploitation pipe as claimed in claim 1, it is characterized in that: respectively be provided with end ring near overcurrent eyelet location on the described parent tube, distance between the length of described sand control screen jacket and described end ring adapts, so that the two ends of described sand control screen jacket are fixed with described end ring by welding.
7. as claim 1 or 6 described oil/gas exploitation pipes, it is characterized in that: described parent tube has 1 described overcurrent eyelet area along the longitudinal direction at least, arranges along the parent tube longitudinal direction with the corresponding described sand control screen of the quantity of described overcurrent eyelet area.
8. oil/gas exploitation pipe as claimed in claim 5 is characterized in that: the aperture area rate of the formed described oil/gas exploitation pipe of (gross area in described circulation slit)/(described sand control screen surface area) is 20-30%.
9. method of making oil/gas exploitation pipe, it comprises:
(1) provide the step of at least one parent tube, described parent tube is provided with the overcurrent eyelet area, and two ends are provided with join domain, so that a plurality of described parent tube can be end to end to form the mining tubular column of suitable length;
(2) provide the step of sand control screen jacket, described sand control screen jacket serve as reasons banded filter plate through along the inner surface helical buckling of filter plate forming caliber, and the pipe fitting that the spiral boxing of the long relatively limit substantial seal of described banded filter plate is formed;
(3) provide the step that sand control screen jacket and parent tube are installed, described sand screen cover is placed in outside the described parent tube and corresponding with described overcurrent eyelet area, then that its described parent tube is fixedly connected.
10. method as claimed in claim 9 is characterized in that: described banded filter plate provides by following step:
(1) provides banded sheet material step;
(2) provide the punch forming step, so that on the external surface of banded sheet material by being formed with a plurality of hole countersunk openings towards its inner surface direction punching press, and on the hole wall of described opening, form the hydrocarbon fluids circulation slit of proper width, change the hydrocarbon fluids flow direction to reach, reduce flow velocity, alleviate fluid erosion, and make hydrocarbon fluids enter the inside of screen casing and sandstone is isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127209A CN101824977A (en) | 2009-03-05 | 2009-03-05 | Oil/gas exploitation pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127209A CN101824977A (en) | 2009-03-05 | 2009-03-05 | Oil/gas exploitation pipe and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101824977A true CN101824977A (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910127209A Pending CN101824977A (en) | 2009-03-05 | 2009-03-05 | Oil/gas exploitation pipe and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN101824977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526814A (en) * | 2018-03-06 | 2018-09-14 | 兰州正丰石油化工技术装备有限责任公司 | A kind of oil/gas well sand control spiral screen slot jacket |
| CN115026522A (en) * | 2022-07-07 | 2022-09-09 | 大庆永铸石油技术开发有限公司 | Preparation process of high-density punched seam sieve tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136874Y (en) * | 1992-09-23 | 1993-06-23 | 西安近代化学研究所 | Deep well fracturing bullet |
| CN2474720Y (en) * | 2001-02-23 | 2002-01-30 | 中国石化胜利油田有限公司采油工艺研究院 | Long life sintered metal felt sand filtering tube |
| US20070256834A1 (en) * | 2006-05-04 | 2007-11-08 | Hopkins Sam A | Particle control screen with depth filtration |
| CN201013329Y (en) * | 2007-02-13 | 2008-01-30 | 张平 | Sintered stainless steel wire mesh sand screen pipe |
| CN201031671Y (en) * | 2007-04-20 | 2008-03-05 | 易会安 | Bridge type composite sieve tube |
-
2009
- 2009-03-05 CN CN200910127209A patent/CN101824977A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136874Y (en) * | 1992-09-23 | 1993-06-23 | 西安近代化学研究所 | Deep well fracturing bullet |
| CN2474720Y (en) * | 2001-02-23 | 2002-01-30 | 中国石化胜利油田有限公司采油工艺研究院 | Long life sintered metal felt sand filtering tube |
| US20070256834A1 (en) * | 2006-05-04 | 2007-11-08 | Hopkins Sam A | Particle control screen with depth filtration |
| CN201013329Y (en) * | 2007-02-13 | 2008-01-30 | 张平 | Sintered stainless steel wire mesh sand screen pipe |
| CN201031671Y (en) * | 2007-04-20 | 2008-03-05 | 易会安 | Bridge type composite sieve tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526814A (en) * | 2018-03-06 | 2018-09-14 | 兰州正丰石油化工技术装备有限责任公司 | A kind of oil/gas well sand control spiral screen slot jacket |
| CN115026522A (en) * | 2022-07-07 | 2022-09-09 | 大庆永铸石油技术开发有限公司 | Preparation process of high-density punched seam sieve tube |
| CN115026522B (en) * | 2022-07-07 | 2022-12-27 | 大庆永铸石油技术开发有限公司 | Preparation process of high-density punched seam sieve tube |
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Application publication date: 20100908 |