CN203201540U - Abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of oil well - Google Patents
Abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of oil well Download PDFInfo
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- CN203201540U CN203201540U CN2013200986793U CN201320098679U CN203201540U CN 203201540 U CN203201540 U CN 203201540U CN 2013200986793 U CN2013200986793 U CN 2013200986793U CN 201320098679 U CN201320098679 U CN 201320098679U CN 203201540 U CN203201540 U CN 203201540U
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Abstract
The utility model provides an abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of an oil well. The abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe comprises a central screen pipe body, a wire winding screen is sleeved on the outside of the central screen pipe body, the upper end of the central screen pipe body is connected with an upper coupling, the lower end of the central screen pipe body is connected with a lower connector, a cage-shaped protective jacket is sleeved on the outside of the whole of the central screen pipe body and the wire winding screen, the upper end of the cage-shaped protective jacket is fixedly connected with the upper coupling, and the lower end of the cage-shaped protective jacket is fixedly connected with the lower connector. According to the fact that the cage-shaped protective jacket is sleeved on the outside of the whole of the central screen pipe body and the wire winding screen, in descending and ascending processes inside an inclined shaft, friction between the wire winding screen and the inner wall of a drivepipe will not occur, and the fault that the wire winding screen is abraded, expands and falls off is avoided. On the transverse section of the abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe, an original even and smooth cylindrical structure of the wire winding screen is divided and broken through the protective ribs, so that paste or dirt dissolved out of well liquid does not easily paste the whole outer surface of the abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe, the service life of the abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe in the well condition is prolonged, the maintenance-free period of the oil well is prolonged, and exploitation benefits of an oil field are improved.
Description
Technical field
The utility model relates in the petroleum industry sand control and protects with overcoat that muscle is anti-wear, anti-sticks with paste wire-wrapped screen in the dead little external diameter.
Background technology
Sand production is one of subject matter that faces in the domestic sandstone oil reservoir recovery process, has a strong impact on and restrict the normal production of crude oil and the raising of economic benefit.Especially for the oil field that is in middle and later periods exploitation, be subjected to that well water is high, the stratum pressure drop reaches greatly the impact that individual well high strength is put the unfavorable factors such as voidage-injection imbalance of poor extract and pay interval, stratum deficit, negative pressure are serious, and oil well generally seriously shakes out.
Wire-wrapped screen is a kind of sand block instrument commonly used on the oil-well pump tubing string, it is terminal that the inlet that it takes out tubing string as pump is installed in the tail pipe of whole tubing string, rely on the difference sieve gap that arranges on the wrapping wire screen cloth, can stop effectively that flour sand to the reservoir sand between the particle size range of pressure break ceramsite sand or artificial sand in the pit shaft enters pump and takes out tubing string, advance the pump sand content thereby reduce, alleviate the sand evils such as sand milling, sand card, sand plug, prolong oil well repair free period, improve the oil field development benefit.
Traditional pump is taken out tubing string: the center screen casing covers the bolting silk net outward, and two ends connect respectively a pin thread box cupling that structure is identical up and down, and whole maximum outside diameter is larger, is generally φ 95～100mm.This wire-wrapped screen is form of structure the most traditional in the petroleum industry, has preferably characteristics of structure maturation, easy for installation, versatility.But along with deeply taking out by force of oil well adopted, hole deviation increases and the generation of the complicated pit shaft operating mode such as knot cream fouling, this traditional wire-wrapped screen has shown inadaptability gradually.The main realization is: at first, for the requirement of the dark extract of oil well, pump setting depth is increasing, as the thereupon also corresponding increase of depth of setting of the wire-wrapped screen of inlet under the pump, and quite a few oil well even require oil well pump to descend oil reservoir perforated interval position.But because the well-case perforating eyelet can stay more metallic bur power, preforation tunnel also is the stress concentration portion position on the sleeve structure, and along with the prolongation in oil mining cycle, the well-case perforating section is outside the stratum under the extruding force effect even can produce the local sleeve compression deformation.Like this, because the outside wrapping wire screen strength of traditional wire-wrapped screen is lower, external diameter is larger, is just easily scraped damage even meets card in perforation position cover compression deformation section by the metallic bur power of sleeve pipe preforation tunnel; Secondly, because inclined shaft is more and more, wire-wrapped screen is in again pump and takes out the tubing string end, when whole pump is taken out tubing string 5
1/
2When being lowered to and tripping out in the pit shaft of inch specification sleeve pipe, the outside wrapping wire screen cloth of wire-wrapped screen basically whole process is all rubbing with internal surface of sleeve pipe, when well depth darker, when hole deviation is larger, just easily the wrapping wire screen cloth is galled, thereby wrapping wire screen cloth distending is scattered, cause tubing string to meet card when serious; Moreover, because some oil wells pit shaft knot cream or fouling situation are serious, the outside wrapping wire screen cloth cross section of tradition wire-wrapped screen is evenly level and smooth cylinder-like structure, cause cream or the dirt of separating out in the well liquid easily to be attached to wrapping wire screen cloth external surface, the all or part of paste of wire-wrapped screen is dead the most at last, make the wire-wrapped screen forfeiture or reduce conveyance capacity, pump is taken out tubing string and was lost efficacy.Use restriction and the sand production of these aspects, the contradiction that forms between the demand of sand block is comparatively outstanding.That is, traditional pump take out tubing string with wire-wrapped screen when sand well uses, dark when larger, the lower pump of oil well hole deviation, when the fouling of knot cream is serious, use is restricted.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of sand control to protect wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, overcome the deficiencies in the prior art, pump is taken out have when tubing string is worked in the sand well of inclined shaft, deep-well, the fouling of knot cream with wire-wrapped screen the wearing and tearing of the wrapping wire of preventing screen cloth to be scattered, prevent from being stuck with paste dead by the cream of separating out in the well liquid or dirt, and in the well-case perforating section by well behaved function, thereby prolong wire-wrapped screen application life, prolong oil well repair free period, improve the oil field development benefit.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: a kind of sand control is protected wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, it comprises the center screen casing, the center screen casing is set with the wrapping wire screen cloth outward, it is characterized in that: the upper end of center screen casing is connected with box cupling, the lower end of center screen casing is connected with lower contact, the whole outside of center screen casing and wrapping wire screen cloth is set with cage shape sheath, upper end and the upper box cupling of cage shape sheath are connected, and lower end and the lower contact of cage shape sheath are connected.
Press such scheme, described cage shape sheath comprises the muscle that protects that connects between the Supporting ring at two ends up and down and the Supporting ring, and upper end Supporting ring and upper box cupling are connected, and lower end Supporting ring and lower contact are connected.
Press such scheme, described center screen casing is provided with the circumferentially sieve aperture to wearing, axially being uniform staggered with, and the hole count of sieve aperture, aperture, the axial and circumferential hole is close decides more than or equal to the design principles of the area of passage of wrapping wire screen cloth according to total area of passage.
Press such scheme, the described sieve aperture that protects muscle and center screen casing is staggeredly located.
Press such scheme, the external diameter of described Supporting ring, upper box cupling and lower contact equates.
Press such scheme, described Supporting ring with protect the muscle link and be provided with chamfering structure.
The beneficial effects of the utility model are:
1, by at the whole outside of center screen casing and wrapping wire screen cloth suit cage shape sheath, be lowered in inclined shaft and trip out in the process, the wrapping wire screen cloth can not rub with internal surface of sleeve pipe, and the fault of having avoided wrapping wire screen cloth wearing and tearing distending to be scattered occurs; Because on this device cross section, the original evenly level and smooth cylinder-like structure of wrapping wire screen cloth is protected muscle to be cut apart and breaks, make cream or the dirt of separating out in the well liquid be not easy the whole appearance batter of this novel interior wire-wrapped screen dead, prolonged its application life in this class hole condition, prolong oil well repair free period, improve the oil field development benefit.
2, through test, this device is 5
1/
2When using in the sleeve pipe of inch and above specification, have the good performance of passing through, and the oil well hole deviation scope that adapts to is large, facts have proved, can satisfy the safe and effective production of horizontal well in horizontal segment.
3, because this device overcoat protects muscle, therefore, even the wrapping wire screen cloth is scraped damage by sleeve pipe perforated interval burr, can not be scattered by distending yet.
4, since Supporting ring with protect the muscle link and have chamfering structure, therefore, be lowered to and trip out in the process at this device, even internal surface of sleeve pipe has protruding foreign matter that the scratching fault that is hampered can not occur yet.
5, upwards do not overlap in the footpath of center screen casing with the sieve aperture of center screen casing owing to protecting muscle, but therefore the certain angle that staggers, can guarantee the validity of maximum flow channels.
6, this device of tripping out of operation use of after stinging clean inspection, can repeatedly going into the well.
Description of drawings
Fig. 1 is the partial sectional view of the utility model one embodiment.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the stereogram of cage shape sheath.
Fig. 4 is the stereogram of the utility model one embodiment.
Among the figure: 1. go up box cupling, 2. center screen casing, the 2-1. sieve aperture, 3. Supporting ring, the 3-1. weld seam, the 3-2. weld seam 4. protects muscle, 5. wrapping wire screen cloth, the supporting of 5-1. wrapping wire screen cloth rib, 6. lower contact.
The specific embodiment
Fig. 1 is the partial sectional view of the utility model one embodiment, Fig. 2 is the A-A profile of Fig. 1, Fig. 4 is the stereogram of the utility model one embodiment, it comprises center screen casing 2, the center screen casing 2 outer wrapping wire screen clothes 5 that are set with, wrapping wire screen cloth 5 two ends embed respectively box cupling 1, lower contact 6 screws in the annular clearance that forms after the assembling with center screen casing 2; The upper end screwed connection of center screen casing 2 has upper box cupling 1, the lower end screwed connection of center screen casing 2 has lower contact 6, the whole outside of center screen casing 2 and wrapping wire screen cloth 5 is set with cage shape sheath, and the upper end of cage shape sheath and 1 welding of upper box cupling are connected, and the lower end of cage shape sheath and lower contact 6 welding are connected.Cage shape sheath as shown in Figure 3, comprise connect between the Supporting ring 3 at two ends up and down and the Supporting ring protect muscle 4, the upper end Supporting ring is connected with 1 welding of upper box cupling, lower end Supporting ring and lower contact 6 are welded and are connected.Protect in the holddown groove of the corresponding insertion of muscle 4 two ends difference Supporting ring 3, and be welded and fixed with Supporting ring 3 employings.
This Novel oil well sand control protects with overcoat that muscle is anti-wear, anti-sticks with paste that wire-wrapped screen is applicable to 5 in the dead little external diameter
1/
2Box cupling 1 internal thread is wherein gone up in use in the sleeve pipe of inch and above specification and lower contact 6 external screw threads are 2
7/
8Inch specification plain end oil well pipe screw thread button-type.Center screen casing 2 is provided with the circumferentially sieve aperture 2-1 to wearing, axially being uniform staggered with, and the hole count of sieve aperture 2-1, aperture, the axial and circumferential hole is close decides more than or equal to the design principles of the area of passage of wrapping wire screen cloth according to total area of passage.By the two ends of protecting the cage shape sheath that muscle 4 and Supporting ring 3 be assembled into upper box cupling 1 and lower contact 6 welding before to adjust circumferential position, upwards do not overlap in the footpath of center screen casing 2 with the sieve aperture 2-1 of center screen casing 2 so that protect muscle 4, but the certain angle that staggers can guarantee the validity of maximum flow channels like this.After upper box cupling 1 and center screen casing 2 screw threads screwed and put in place, upper box cupling 1 bottom inner chamber can form certain annular clearance with center screen casing 2 outer walls.Same, after lower contact 6 and center screen casing 2 screw threads screwed and put in place, lower contact 6 bottom inner chambers also formed certain annular clearance with center screen casing 2 outer walls.Like this, the two ends that are sleeved on the wrapping wire screen cloth 5 on the center screen casing 2 can embed respectively box cupling 1, lower contact 6 screws in the annular clearance that forms after the assembling with center screen casing 2, fix thereby form pressing friction.Wrapping wire screen cloth 5 is welded into a tubular integrative-structure by many wrapping wire screen cloth supporting rib 5-1 in the vertical, and axial overall length is 2m.Supporting ring 3 internal diameters with fixing after the muscle 4 interior circular diameters that protect be consistent, all than the large 0.5mm of wrapping wire screen cloth 5 external diameters.Weld seam 3-2 between weld seam 3-2 between upper box cupling 1 and the Supporting ring 3, lower contact 6 and the Supporting ring 3, Supporting ring 3 and protect weld seam 3-1 between the muscle 4, all external surface is polished smooth, its outside diameter and upper box cupling 1 maximum outside diameter, lower contact 6 maximum outside diameters, Supporting ring 3 maximum outside diameters, muscle 4 outside diameters that protect after fixing are consistent, are φ 90mm.Like this, 5
1/
2When using in the sleeve pipe of inch and above specification, so that this novel interior wire-wrapped screen has the good performance of passing through, and the oil well hole deviation scope that adapts to is large, facts have proved, can satisfy the safe and effective production of horizontal well in horizontal segment.
Main, the anti-wear protection of protecting muscle 4 has been arranged, this novel interior wire-wrapped screen is lowered in inclined shaft and trips out in the process, and wrapping wire screen cloth 5 can not rub with internal surface of sleeve pipe, and the fault of having avoided wrapping wire screen cloth 5 wearing and tearing distendings to be scattered occurs.And, even wrapping wire screen cloth 5 is scraped damage by sleeve pipe perforated interval burr, can not be scattered by distending yet.Simultaneously, because Supporting ring 3 has chamfering structure with the cylindrical of an end of holddown groove, therefore, be lowered to and trip out in the process at this novel interior wire-wrapped screen, even internal surface of sleeve pipe has protruding foreign matter that the scratching fault that is hampered can not occur yet.At last, because on this novel interior wire-wrapped screen cross section, the original evenly level and smooth cylinder-like structures of wrapping wire screen cloth 5 are protected muscle 4 to be cut apart and breaks, make cream or the dirt of separating out in the well liquid be not easy the whole appearance batter of this novel interior wire-wrapped screen dead, prolonged its application life in this class hole condition, and, protect muscle 4 and can be designed to many.
3-0 represents among Fig. 3 is Supporting ring 3 and protect muscle 4 and weld front assembly structure between the two.
In the present embodiment, upper coupling inner thread and lower contact external screw thread are 2
7/
8Inch specification plain end oil well pipe screw thread button-type; Wrapping wire screen cloth 5 comprises the tubular structure that is welded into by many wrapping wire screen cloth supporting rib 5-1 vertically are set, and its axial overall length is 2m; The Supporting ring internal diameter with fixing after protect that circular diameter is consistent in the muscle, all than the large 0.5mm of wrapping wire screen cloth external diameter; Supporting ring 3 with protect muscle 4 links and be provided with chamfering structure; Protecting muscle is 8.
This novel interior wire-wrapped screen that operation trips out use of after stinging clean inspection, can repeatedly going into the well.
Claims (6)
1. a sand control is protected wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, it comprises center screen casing (2), the outer wrapping wire screen cloth (5) that is set with of center screen casing (2), it is characterized in that: the upper end of center screen casing (2) is connected with box cupling (1), the lower end of center screen casing (2) is connected with lower contact (6), the whole outside of center screen casing (2) and wrapping wire screen cloth (5) is set with cage shape sheath, the upper end of cage shape sheath and upper box cupling (1) are connected, and the lower end of cage shape sheath and lower contact (6) are connected.
2. sand control according to claim 1 is protected wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, it is characterized in that: described cage shape sheath comprise connect between the Supporting ring (3) at two ends up and down and the Supporting ring protect muscle (4), upper end Supporting ring and upper box cupling (1) are connected, and lower end Supporting ring and lower contact (6) are connected.
3. sand control according to claim 2 is protected wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, it is characterized in that: described center screen casing (2) is provided with the circumferentially sieve aperture (2-1) to wearing, axially being uniform staggered with, and the hole count of sieve aperture (2-1), aperture, the axial and circumferential hole is close decides more than or equal to the design principles of the area of passage of wrapping wire screen cloth according to total area of passage.
4. sand control according to claim 3 is protected wire-wrapped screen in the dead little external diameter of anti-wear, the anti-paste of muscle with overcoat, and it is characterized in that: the described sieve aperture (2-1) that protects muscle (4) and center screen casing is staggeredly located.
According to claim 2 in 4 the described sand control of any one protect with overcoat that muscle is anti-wear, anti-sticks with paste wire-wrapped screen in the dead little external diameter, it is characterized in that: the external diameter of described Supporting ring (3), upper box cupling (1) and lower contact (6) is equal.
6. sand control according to claim 5 protects with overcoat that muscle is anti-wear, anti-sticks with paste wire-wrapped screen in the dead little external diameter, it is characterized in that: described Supporting ring (3) with protect muscle (4) link and be provided with chamfering structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200986793U CN203201540U (en) | 2013-03-05 | 2013-03-05 | Abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200986793U CN203201540U (en) | 2013-03-05 | 2013-03-05 | Abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of oil well |
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| Publication Number | Publication Date |
|---|---|
| CN203201540U true CN203201540U (en) | 2013-09-18 |
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| CN2013200986793U Expired - Lifetime CN203201540U (en) | 2013-03-05 | 2013-03-05 | Abrasion-resistant and pasting-resistant small-external-diameter inner wire winding screen pipe externally sleeved with protective ribs and used for sand prevention of oil well |
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| CN (1) | CN203201540U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194148A (en) * | 2016-08-30 | 2016-12-07 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on wind and rain playground |
| CN106223907A (en) * | 2016-08-30 | 2016-12-14 | 湖南中大经纬地热开发科技有限公司 | Filter for thermal source well |
| CN106246142A (en) * | 2016-08-30 | 2016-12-21 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on complicated ground stratum |
| CN106321023A (en) * | 2016-08-30 | 2017-01-11 | 湖南中大经纬地热开发科技有限公司 | Geothermal well based on quaternary alluvium-diluvium layer |
-
2013
- 2013-03-05 CN CN2013200986793U patent/CN203201540U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194148A (en) * | 2016-08-30 | 2016-12-07 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on wind and rain playground |
| CN106223907A (en) * | 2016-08-30 | 2016-12-14 | 湖南中大经纬地热开发科技有限公司 | Filter for thermal source well |
| CN106246142A (en) * | 2016-08-30 | 2016-12-21 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on complicated ground stratum |
| CN106321023A (en) * | 2016-08-30 | 2017-01-11 | 湖南中大经纬地热开发科技有限公司 | Geothermal well based on quaternary alluvium-diluvium layer |
| CN106194148B (en) * | 2016-08-30 | 2018-08-17 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on wind and rain playground |
| CN106223907B (en) * | 2016-08-30 | 2018-10-12 | 湖南中大经纬地热开发科技有限公司 | Filter for heat source well |
| CN106246142B (en) * | 2016-08-30 | 2018-10-12 | 湖南中大经纬地热开发科技有限公司 | A kind of geothermal well based on complicated ground stratum |
| CN106321023B (en) * | 2016-08-30 | 2018-12-07 | 湖南中大经纬地热开发科技有限公司 | The geothermal well of diluvial formation is rushed based on the 4th system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130918 |