CN204960900U - Backward strain high pressure resistant filter sand section of thick bamboo of seam formula - Google Patents
Backward strain high pressure resistant filter sand section of thick bamboo of seam formula Download PDFInfo
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- CN204960900U CN204960900U CN201520651090.0U CN201520651090U CN204960900U CN 204960900 U CN204960900 U CN 204960900U CN 201520651090 U CN201520651090 U CN 201520651090U CN 204960900 U CN204960900 U CN 204960900U
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Abstract
The utility model discloses a backward strain high pressure resistant filter sand section of thick bamboo of seam formula, including bobbin top annular flange and bobbin base disk flange, be provided with many along its outer circumferencial direction between bobbin top annular flange and the bobbin base disk flange and filter the twigs of the chaste tree, every is filtered that the twigs of the chaste tree all are on a parallel with the barrel axial lead and the interval equals, formation dimensions is the same between the adjacent filtration twigs of the chaste tree strains the seam passageway, strain the medial opening who stitches the passageway be lighter than outside the opening to wide cage type filtration outside narrow in enclosing a synthetic gap on the whole, along its outer circumferencial direction still vertically and horizontally staggered be provided with multichannel hoop strengthening rib and the vertical strengthening rib of multichannel, the hoop strengthening rib binds round into a whole with all filtration twigs of the chaste tree, vertically the strengthening rib is linked to be a whole with all hoop strengthening ribs mutually, the utility model discloses resistance when effectively reducing the sand grain and overflowing stops up the circumstances when reducing the in -service use, the rigidity of a reinforcing filter sand section of thick bamboo, reduce high -pressure operating mode under a filter sand section of thick bamboo probability is out of shape, lengthen its life.
Description
Technical field
The utility model relates to Oil/gas Well Produced Liquid desanding device, refers to a kind of high pressure resistant sand filtering barrel of reverse filter seam be built in filter net type desanding device particularly.
Background technology
In current crude oil production testing operation, ubiquity the problem of sand production of oil-gas wells, sand production of oil-gas wells causes energy waste and environment pollution on the one hand, what sand grains was formed under the effect of high pressure draught on the other hand very easily forms serious erosion and ablation destruction to ground gathering line and equipment containing sand jet, affects oilfield safety and produces.
Therefore, Oil/gas Well Produced Liquid, before entering surface gathering system, needs to install well head desanding device, carries out desanding operation, separated as far as possible by the solid particles such as sand grains Produced Liquid.Current built-in sand filtering barrel realizes the features such as the filter net type desanding device of desanding is simple with its structure, separating effect is stable and is widely used in well head desanding field.Widely used stainless steel wrap wire screen casing in current downhole sand removing operation, its structure is welded with axial ribs on the center base tube of punching, and rib is formed by the boxing of stainless steel wire hoop.Wire-wrapped screen defines the filter sand seam chamber of one " outer narrow inner width " after making, during downhole sand removing operation, outside toward interior infiltration desanding from sand filtering barrel containing sand drain stream, effect is more satisfactory; But during for well head desanding, well stream is from interior past exosmosis, and " outer narrow inner width " is stitched chamber sand grains and very easily blocked, and very easily flattening, running after blocking.The another kind of slot sand filtering barrel used in well head desanding device, main laser or plasma torch directly cut out filter sand seam chamber on oil, sleeve pipe, by the restriction of technique, filter sand seam chamber reasonably can not be arranged according to filter sand required precision, and desanding effect is undesirable.Generally speaking, sand filtering barrel conventional in current well head desanding operation, due to its technique or structure restriction, very easily blocks during use and is very easily out of shape under high pressure, needs often replacing to cause with high costs.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided a kind of oppositely filter seam high pressure resistant sand filtering barrel, effectively can reduce resistance when sand grains overflows, reduce stopping state when reality uses, and effectively can strengthen the rigidity of sand filtering barrel, sand filtering barrel deformation probability under reduction high pressure operating mode, extends its application life.
For achieving the above object, the utility model provides a kind of oppositely filter seam high pressure resistant sand filtering barrel, and comprise disc shaped flange at the bottom of cylinder top annular flange and cylinder, its special character is:
Between disc shaped flange, its excircle direction is provided with many at the bottom of described cylinder top annular flange and cylinder and filters the twigs of the chaste tree, filter the twigs of the chaste tree described in every root and be all parallel to cylindrical shell axial line and interval is equal, the filter seam passage that dimensions is identical is formed between the adjacent described filtration twigs of the chaste tree, the interior side opening of described filter seam passage is less than outer openings, thus encloses narrow outer wide cage type filtration in a gap on the whole;
Also crisscrossly along its excircle direction between disc shaped flange at the bottom of described cylinder top annular flange and cylinder be provided with multiple tracks modal circumferential stiffening rib and multiple tracks waling, all filtration twigs of the chaste tree hoops are become an entirety by described modal circumferential stiffening rib, and all modal circumferential stiffening ribs are connected to an entirety by described waling.
Preferably, the described filtration twigs of the chaste tree are cross section is trapezoidal post bar, and side corresponding to described trapezoidal base is towards cylindrical shell disposed inboard, and this structure design can make narrow outer wide design in seam chamber more obvious.
Preferably, the described filtration twigs of the chaste tree are the post bar that cross section is rectangle, and side corresponding to described rectangular minor face is towards cylindrical shell disposed inboard, and this structure design more simply, is easily processed.
Further, in described multiple tracks modal circumferential stiffening rib, uppermost one an entirety is bound round on the top of all filtration twigs of the chaste tree, nethermost one an entirety is bound round in the bottom of all filtration twigs of the chaste tree.
Further, described modal circumferential stiffening rib is arranged on the outside of all filtration twigs of the chaste tree, and described waling is arranged on the outside of all modal circumferential stiffening ribs, and each tie point of described modal circumferential stiffening rib, the filtration twigs of the chaste tree and waling is welded construction.
Further; described cylinder top annular flange and junction, cylindrical shell top are fixed connection structure; disc shaped flange at the bottom of described cylinder and junction, cylindrical shell bottom are detachable syndeton; like this can according to field working conditions condition; until sand grains run up to a certain amount of after, coordinate other servicing units to carry out artificial sediment outflow or automatic sand draining.
In addition, the preparation method of the high pressure resistant sand filtering barrel of reverse filter seam described in the utility model comprises the following steps:
1) cylinder pushed up disc shaped flange at the bottom of annular flange and cylinder upper and lower parallel position centering with clamping device to fix;
2) adopt high-frequency resistance welding (HFRW) and/or argon arc welding to be welded and fixed with the excircle of cylinder top annular flange with many being filtered the top uniform intervals of the twigs of the chaste tree to be connected, be connected with at the bottom of cylinder, the excircle of disc shaped flange is detachable with many being filtered the bottom uniform intervals of the twigs of the chaste tree simultaneously, make to form the consistent filter seam passage of dimensions according to the requirement of filter sand partition size between the adjacent head twigs of the chaste tree, and the interior side opening of filter seam passage is less than outer openings, thus enclose narrow outer wide cage type filtration in a gap on the whole;
3) then filter the vertical direction of the twigs of the chaste tree along many, weld multiple tracks modal circumferential stiffening rib from top to bottom, all filtration twigs of the chaste tree apart from one another by parallel, thus be welded and fixed and bind round into an entirety by per pass modal circumferential stiffening rib;
4) again along the circumferencial direction of multiple tracks modal circumferential stiffening rib, vertically weld multiple tracks waling successively, per pass waling is apart from one another by parallel, thus all modal circumferential stiffening ribs are connected to an entirety, makes the oppositely high pressure resistant sand filtering barrel of filter seam.
Further, described modal circumferential stiffening rib is welded on the outside of all filtration twigs of the chaste tree, and described waling is welded on the outside of all modal circumferential stiffening ribs.
Preferably, in described multiple tracks modal circumferential stiffening rib, the uppermost top being welded on all filtration twigs of the chaste tree together, the nethermost bottom being welded on all filtration twigs of the chaste tree together.
Utility model works specific works principle is as follows:
When the utility model uses, disc shaped flange and sand filtering barrel tubular construction at the bottom of described cylinder top annular flange and cylinder form a high-pressure sealed desanding environment, enter in cylindrical shell containing sand drain stream from the cylinder apical ring shape flange of sand filtering barrel at a high speed, under the effect of well stream, the sand grains that particle diameter is greater than filter seam passage is stopped, is deposited to bottom sand filtering barrel under Action of Gravity Field; The sand grains being less than filter seam passage, along gap, leaches sand filtering barrel, realizes filter sand object.Because in filter seam passage, side opening is less than outer openings, the setting in this " interior narrow outer wide " gap, when sand grains is overflowed, resistance is more and more less, not easily blocks.When reality uses during sand grains blocking gap place, local, will produce interior pressure, and at this moment due to the support of modal circumferential stiffening rib and waling, enhance the rigidity of sand filtering barrel, effectively can prevent the distortion of sand filtering barrel.
The utility model, compared with existing sand filtering barrel, has following beneficial effect:
The utility model can filter filter seam passage between rib according to the requirement reasonable Arrangement of partition size, and the design in " interior narrow outer wide " gap, can reduce resistance when sand grains overflows, and stopping state when effectively can reduce actual use, increases oil vapor treatment amount; Whole filter sand ring is become an entirety by set hoop, waling, effectively can strengthen the rigidity of sand filtering barrel, and sand filtering barrel deformation probability under reduction high pressure operating mode, extends its application life.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the high pressure resistant sand filtering barrel of a kind of reverse filter seam;
Fig. 2 is annular flange plan structure schematic diagram in cylinder top in Fig. 1;
Fig. 3 is disc shaped flange plan structure schematic diagram at the bottom of cylinder in Fig. 1;
Fig. 4 is modal circumferential stiffening rib in Fig. 1, filters the twigs of the chaste tree and waling arrangement connecting structure schematic diagram;
Fig. 5 is that in Fig. 1, cuboid filters twigs of the chaste tree combining structure schematic diagram;
Fig. 6 is for cross section is that trapezoidal cylinder filters twigs of the chaste tree combining structure schematic diagram in Fig. 1.
In figure: disc shaped flange 5, filter seam passage 6 at the bottom of cylinder top annular flange 1, modal circumferential stiffening rib 2, the filtration twigs of the chaste tree 3, waling 4, cylinder.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
One as shown in the figure oppositely filters the high pressure resistant sand filtering barrel of seam, and comprise disc shaped flange 5 at the bottom of cylinder top annular flange 1 and cylinder, its special character is:
Between disc shaped flange 5, its excircle direction is provided with many at the bottom of described cylinder top annular flange 1 and cylinder and filters the twigs of the chaste tree 3, filter the twigs of the chaste tree 3 described in every root and be all parallel to cylindrical shell axial line and interval is equal, the filter seam passage 6 that dimensions is identical is formed between the adjacent described filtration twigs of the chaste tree 3, the interior side opening of described filter seam passage 6 is less than outer openings, thus encloses narrow outer wide cage type filtration in a gap on the whole;
Also crisscrossly along its excircle direction between disc shaped flange 5 at the bottom of described cylinder top annular flange 1 and cylinder be provided with multiple tracks modal circumferential stiffening rib 2 and multiple tracks waling 4, all filtration twigs of the chaste tree 3 are bound round into an entirety by described modal circumferential stiffening rib 2, and all modal circumferential stiffening ribs 2 are connected to an entirety by described waling 4;
As shown in Figure 6, the described filtration twigs of the chaste tree 3 can be trapezoidal post bar for cross section, and side corresponding to described trapezoidal base is towards cylindrical shell disposed inboard; As shown in Figure 5, the post bar that the described filtration twigs of the chaste tree 3 can be rectangle for cross section, side corresponding to described rectangular minor face is towards cylindrical shell disposed inboard;
In described multiple tracks modal circumferential stiffening rib 2, uppermost one an entirety is bound round on the top of all filtration twigs of the chaste tree 3, nethermost one an entirety is bound round in the bottom of all filtration twigs of the chaste tree 3;
Described modal circumferential stiffening rib 2 is arranged on the outside of all filtration twigs of the chaste tree 3, and described waling 4 is arranged on the outside of all modal circumferential stiffening ribs 2, and each tie point of described modal circumferential stiffening rib 2, the filtration twigs of the chaste tree 3 and waling 4 is welded construction;
Described cylinder top annular flange 1 and junction, cylindrical shell top are fixed connection structure, and at the bottom of described cylinder, disc shaped flange 5 and junction, cylindrical shell bottom are detachable syndeton;
The preparation method that the present embodiment oppositely filters the high pressure resistant sand filtering barrel of seam is as follows:
1) cylinder pushed up disc shaped flange 5 at the bottom of annular flange 1 and cylinder upper and lower parallel position centering with clamping device to fix;
2) adopt high-frequency resistance welding (HFRW) and/or argon arc welding to be welded and fixed with the excircle of cylinder top annular flange 1 with many being filtered the top uniform intervals of the twigs of the chaste tree 3 to be connected, be connected with the excircle of disc shaped flange at the bottom of cylinder 5 is detachable with many being filtered the bottom uniform intervals of the twigs of the chaste tree 3 simultaneously, make to form the consistent filter seam passage 6 of dimensions according to the requirement of filter sand partition size between the adjacent head twigs of the chaste tree 3, and the interior side opening of filter seam passage 6 is less than outer openings, thus enclose narrow outer wide cage type filtration in a gap on the whole;
3) vertical direction of the twigs of the chaste tree 3 is then filtered along many, weld multiple tracks modal circumferential stiffening rib 2 from top to bottom, per pass modal circumferential stiffening rib 2 is apart from one another by parallel, thus all filtration twigs of the chaste tree 3 are welded and fixed bind round into an entirety, described modal circumferential stiffening rib 2 is welded on the outside of all filtration twigs of the chaste tree 3, in described multiple tracks modal circumferential stiffening rib 2, the uppermost top being welded on all filtration twigs of the chaste tree 3 together, the nethermost bottom being welded on all filtration twigs of the chaste tree 3 together;
4) again along the circumferencial direction of multiple tracks modal circumferential stiffening rib 2, vertically weld multiple tracks waling 4 successively, per pass waling 4 is apart from one another by parallel, thus all modal circumferential stiffening ribs 2 are connected to an entirety, make the oppositely high pressure resistant sand filtering barrel of filter seam, described waling 4 is welded on the outside of all modal circumferential stiffening ribs 2.
When the utility model embodiment uses, disc shaped flange 5 and sand filtering barrel tubular construction at the bottom of described cylinder top annular flange 1 and cylinder form a high-pressure sealed desanding environment, enter in cylindrical shell containing sand drain stream from the cylinder top annular flange 1 of sand filtering barrel at a high speed, under the effect of well stream, the sand grains that particle diameter is greater than filter seam passage 6 is stopped, is deposited to bottom sand filtering barrel under Action of Gravity Field; The sand grains being less than filter seam passage 6, along gap, leaches sand filtering barrel, realizes filter sand object.Because in filter seam passage 6, side opening is less than outer openings, the setting in this " interior narrow outer wide " gap, when sand grains is overflowed, resistance is more and more less, not easily blocks.When reality uses during sand grains blocking gap place, local; pressure in producing; at this moment due to modal circumferential stiffening rib 2 and the support of waling 4; enhance the rigidity of sand filtering barrel; effectively can prevent the distortion of sand filtering barrel, and at the bottom of described cylinder, disc shaped flange 5 and junction, cylindrical shell bottom are detachable syndeton, like this can according to field working conditions condition; until sand grains run up to a certain amount of after, coordinate other servicing units to carry out artificial sediment outflow or automatic sand draining.
Claims (7)
1. oppositely filter the high pressure resistant sand filtering barrel of seam, comprise disc shaped flange (5) at the bottom of cylinder top annular flange (1) and cylinder, it is characterized in that:
Between disc shaped flange (5), its excircle direction is provided with many at the bottom of described cylinder top annular flange (1) and cylinder and filters the twigs of the chaste tree (3), filter the twigs of the chaste tree (3) described in every root and be all parallel to cylindrical shell axial line and interval is equal, filter seam passage (6) that dimensions is identical is formed between the adjacent described filtration twigs of the chaste tree (3), the interior side opening of described filter seam passage (6) is less than outer openings, thus encloses narrow outer wide cage type filtration in a gap on the whole;
Also crisscrossly along its excircle direction between disc shaped flange (5) at the bottom of described cylinder top annular flange (1) and cylinder be provided with multiple tracks modal circumferential stiffening rib (2) and multiple tracks waling (4), all filtration twigs of the chaste tree (3) are bound round into an entirety by described modal circumferential stiffening rib (2), and all modal circumferential stiffening ribs (2) are connected to an entirety by described waling (4).
2. the high pressure resistant sand filtering barrel of reverse filter seam according to claim 1, is characterized in that: the described filtration twigs of the chaste tree (3) for cross section be trapezoidal post bar, side corresponding to described trapezoidal base is towards cylindrical shell disposed inboard.
3. the high pressure resistant sand filtering barrel of reverse filter seam according to claim 1, is characterized in that: the post bar that the described filtration twigs of the chaste tree (3) are rectangle for cross section, and side corresponding to described rectangular minor face is towards cylindrical shell disposed inboard.
4. the high pressure resistant sand filtering barrel of reverse filter seam according to claim 1, it is characterized in that: in described multiple tracks modal circumferential stiffening rib (2), uppermost one an entirety is bound round on the top of all filtration twigs of the chaste tree (3), nethermost one an entirety is bound round in the bottom of all filtration twigs of the chaste tree (3).
5. the high pressure resistant sand filtering barrel of reverse filter seam according to any one of Claims 1 to 4, it is characterized in that: described modal circumferential stiffening rib (2) is arranged on the outside of all filtration twigs of the chaste tree (3), described waling (4) is arranged on the outside of all modal circumferential stiffening ribs (2), described modal circumferential stiffening rib (2), filters the twigs of the chaste tree (3) and each tie point of waling (4) is welded construction.
6. the high pressure resistant sand filtering barrel of reverse filter seam according to any one of Claims 1 to 4, it is characterized in that: described cylinder top annular flange (1) and junction, cylindrical shell top are fixed connection structure, disc shaped flange (5) at the bottom of described cylinder and junction, cylindrical shell bottom are detachable syndeton.
7. the high pressure resistant sand filtering barrel of reverse filter seam according to claim 5, it is characterized in that: described cylinder top annular flange (1) and junction, cylindrical shell top are fixed connection structure, disc shaped flange (5) at the bottom of described cylinder and junction, cylindrical shell bottom are detachable syndeton.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651090.0U CN204960900U (en) | 2015-08-26 | 2015-08-26 | Backward strain high pressure resistant filter sand section of thick bamboo of seam formula |
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| CN201520651090.0U CN204960900U (en) | 2015-08-26 | 2015-08-26 | Backward strain high pressure resistant filter sand section of thick bamboo of seam formula |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064960A (en) * | 2015-08-26 | 2015-11-18 | 武汉海王机电工程技术公司 | Reverse filtering seam type high-pressure-resistant sand filtering cylinder and manufacturing method thereof |
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- 2015-08-26 CN CN201520651090.0U patent/CN204960900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064960A (en) * | 2015-08-26 | 2015-11-18 | 武汉海王机电工程技术公司 | Reverse filtering seam type high-pressure-resistant sand filtering cylinder and manufacturing method thereof |
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