CN103437738A - Slip type integrated descaling device with downhole packing and throttling functions - Google Patents
Slip type integrated descaling device with downhole packing and throttling functions Download PDFInfo
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- CN103437738A CN103437738A CN2013103828141A CN201310382814A CN103437738A CN 103437738 A CN103437738 A CN 103437738A CN 2013103828141 A CN2013103828141 A CN 2013103828141A CN 201310382814 A CN201310382814 A CN 201310382814A CN 103437738 A CN103437738 A CN 103437738A
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Abstract
The invention relates to a slip type integrated descaling device with the downhole packing and throttling functions. The slip type integrated descaling device comprises a releasing head, a center rod, an upper slip, a mandrel, a lower slip, a dowel, an upper rubber sleeve, a lower rubber sleeve, a thrust sleeve, a nozzle, a check valve, a spring, an adjusting lever and a scale inhibiting and anti-scaling device. The slip type integrated descaling device is characterized in that the mandrel is connected below the releasing head, the center rod is installed in the mandrel, the nozzle and the check valve are sequentially installed below the center rod and the mandrel, the spring and the adjusting rod are sequentially installed on the lower portion of the check valve, the upper slip and the lower slip are installed on the upper portion and the lower portion outside the mandrel respectively, the upper rubber sleeve, the lower rubber sleeve and the thrust sleeve are sequentially installed on and connected with the lower portion of the mandrel, and the lowest portion of the device is connected with an alloy material fixing sheath. A packer, a throttler and a descaling device are combined into one, therefore, the working difficulty is effectively reduced when downhole installation is conducted, the maintenance rate of the device is reduced, and exploitation can be normally conducted.
Description
Technical field
The present invention relates to petroleum gas production gas technology field, particularly a kind of down-hole apparatus for eliminating sludge, be a kind of comprehensive apparatus for eliminating sludge with downhole packing, throttling function, and mainly solving oil (gas) well downhole scaling at present affects the normal problem of producing of oil gas.
Background technology
At present, in natural gas extraction, for scale removal, step-down, throttling, limited production, packer, restriction choke, descaler etc. usually are installed in down-hole, although can meet so normal exploitation requirement, increased difficulty to the down-hole installation work, once a certain equipment goes wrong or solid failure simultaneously, will give maintenance, salvage and bring difficulty, even cause down-hole accident.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, a kind of slip-type underground packing and the comprehensive apparatus for eliminating sludge of throttling are provided, it is characterized in that, it comprises back-off sub, center-pole, upper slips, mandrel, lower slips, pin, upper packing element, lower rubber cylinder, the thrust cylinder, oil nozzle, ball-and-seat, spring, adjusting rod, and resistance, scale prevention device, it is characterized in that under described back-off sub connecting described mandrel, described center-pole is installed in described mandrel, described oil nozzle and described ball-and-seat are installed under described center-pole and described mandrel in turn, described ball-and-seat bottom is installed described spring and described adjusting rod in turn, described upper slips and lower slips are installed respectively in the outer top and the bottom of described mandrel, bottom is installed in turn and is connected described upper packing element, lower rubber cylinder and thrust cylinder, the device foot connects the alloy material fixed sheath.Wherein said resistance, scale prevention device comprise core component, fluid ostium, modular connection and described, the alloy material fixed sheath made by the specific alloy material, described specific alloy material employing has different electronegative metallic element high temperature chemical combination by 7 kinds of copper, nickel, antimony, tin, lead, zinc, zirconiums etc. and makes, the proportioning of described 7 kinds of metallic elements is: copper 30%-60%, nickel 10%-30%, antimony 2%-9%, tin 15%-24%, plumbous 15%-30%, zinc 2%-9%, zirconium 3%-8%.
The described core component made by the specific alloy material is in described alloy material fixed sheath.Described upper slips and lower slips are made by the corronil material.Described slip-type underground packing and the comprehensive apparatus for eliminating sludge of throttling, wherein said alloy material fixed sheath surface has amorphous metal state material coating or coating.Described amorphous metal state material coating or coating are that tungsten powder or nano-ceramic powder are formed by pyrolytic coating or electric plating method.The orifice plate that described core component is made by the described specific alloy material of 8-15 sheet forms, and is axially-aligned.It is one that packer, restriction choke, descaler are closed to three, reduces the work difficulty that install down-hole, reduces the maintenance of equipment rate, guarantees to exploit normally to carry out.
The accompanying drawing explanation
Fig. 1: the comprehensive apparatus for eliminating sludge structure diagram of slip-type underground packing of the present invention and throttling.
Fig. 2: alloy material fixed sheath polycrystalline substance schematic diagram.
Fig. 3: resistance, scale prevention device structural representation.
In figure:
The 1-back-off sub, 2-center-pole, 3-upper slips, the 4-mandrel, 5-lower slips, 6-pin, the upper packing element of 7-, 8-lower rubber cylinder, 9-thrust cylinder, the 10-oil nozzle, 11-ball-and-seat, 12-spring, the 13-adjusting rod, 14-specific alloy material, 15-alloy material fixed cover, 16-resistance, scale prevention device, 17-fluid ostium, 18-modular connection
The specific embodiment
Slip-type underground packing of the present invention and the comprehensive apparatus for eliminating sludge of throttling are improved by packer, restriction choke, descaler the new device comprehensively be integrated on original basis.As shown in Figure 1, it comprises back-off sub 1, center-pole 2, upper slips 3, mandrel 4, lower slips 5, pin 6, upper packing element 7, lower rubber cylinder 8, thrust cylinder 9, oil nozzle 10, ball-and-seat 11, spring 12, adjusting rod 13, and resistance, scale prevention device 16, it is characterized in that described back-off sub connects described mandrel 4 for 1 time, the described center-pole 2 of the interior installation of described mandrel 4, described center-pole 2 and described mandrel are equipped with described oil nozzle 10 and described ball-and-seat 11 for 4 times in turn, described ball-and-seat 11 bottoms are installed described spring 12 and described adjusting rod 13 in turn, described upper slips 3 and lower slips 5 are installed respectively in the outer top and the bottom of described mandrel 4, bottom is installed in turn and is connected described upper packing element 7, lower rubber cylinder 8 and thrust cylinder 9, the device foot connects alloy material fixed sheath 15.
Packing: when this device arrives precalculated position, on put forward back-off sub 1, cut off the pin 6 on upper and lower slips by jarring, back-off sub 1 pulls center-pole to make progress away, thrust cylinder 9 drives upper and lower slips open and press close to tube inner wall along the mandrel cone under the drive of center-pole 2, produces active force and reaches fixing; Upper and lower packing element, also because the effect of pressure reduction expands outwardly, is attached to inner-walls of duct simultaneously, reaches sealing state.Because slips plays the fixedly effect of package unit, selection is very crucial.In order to ensure the reliability of instrument, upper and lower slips is selected have higher hardness and be made than the corronil material of strong corrosion resistant; The anti-strong acid of seal, highly basic or strong oxidizer and organic solvent.
Throttling: because packing has been carried out on this device top, mine gas can only partly arrive ball-and-seat 11 by scale removal, pass packing through mandrel 4, finally by oil pipe, arrive ground, in this process, realized reducing pressure by regulating flow, gas flow rate is slowed down, by underground heat, heated like this, hydrate after making gas flow temperature after throttling higher than throttling under pressure condition forms initial temperature, just can not form like this hydrate gambling plug in pit shaft, thereby reach the surface line pressure decreased, control gas well output, cancel the ground heating and heat-insulating device.
Scale removal: as shown in Figure 3, the resistance in the present invention, scale prevention device 16 comprise core component, alloy material fixed cover 15, fluid ostium 17 and the modular connection 18 made by specific alloy material 14.Described specific alloy material 14 adopts by copper, nickel, antimony, tin, plumbous, zinc, 7 kinds of zirconiums etc. have different electronegative metallic element high temperature chemical combination and make, composition proportion by the various elements of strict control (copper 30%-60% wherein, nickel 10%-30%, antimony 2%-9%, tin 15%-24%, plumbous 15%-30%, zinc 2%-9%, zirconium 3%-8%), and adopt special heat processing technique, formed and be orientated consistent columnar crystal structure at this material internal, thereby make this alloy material present extremely strong to fluid media (medium), discharging free electron and make fluid media (medium) produce the unique function of polarity effect.When fluid media (medium) is flowed through this alloy material, alloy material can, to the release of fluid electronics, change the Hydrostatic current potential, make fluid produce polarization phenomena, make the yin, yang ion in fluid be difficult for, in conjunction with forming dirt, making the dirty matter hardened dissolve gradually, come off, reach the effect of scale inhibition, antiscale simultaneously.The orifice plate that core component is made through the strict described specific alloy material 14 designed by the 8-15 sheet forms, and is axially-aligned, is positioned in the instrument inner core, and fluid is by import entering tool inner core; The design of instrument can guarantee the fluid that passes through fully with the contacting of alloy material surface, when fluid contacts with alloy material, alloy material can make fluid generation polarity effect, prevents that mineral matter in fluid from being on the tube wall surface that solid state is deposited in the instrument downstream.
The alloy material fixed cover 15 of described core component, because the energy of institute's having electronic is lower, also easily produces dirty matter at tube wall surface.In this technology, amorphous metal state material (tungsten powder or nano-ceramic powder) is processed protective casing by the method for pyrolytic coating (or plating); This technology is exactly that steel surface at sheath has formed fine and close uniform painting (plating) layer, under the prerequisite that does not reduce original material mechanical performance, make its finish, etch resistant properties be improved significantly.Because amorphous metal state painting (plating) layer has, long-range is unordered, the arrangement of shortrange order, compact structure, isotropism, there is no crystal boundary, dislocation and defect, thereby the product after amorphous metal state material processed has, and microhardness is high, abrasion resistance good, acid-alkali-corrosive-resisting, and with characteristics such as the base material adhesion are good, be a kind of high-new technology products, have the following advantages: the antiscale of coating, wear-resisting, anti-corrosion aspect have good combination property; Belong to the high-tech environment-friendly products, effectively solve the difficult problems such as antiscale, attrition and attack.
Scale-preventing performance: the amorphous metal state is coated with (plating) layer finish up to 0.2～0.4 μ m, can effectively reduce because of the zone turbulent flow that pipe surface is rough or corrosion surface causes, thereby avoid occurring because high salinity formation fluid degree of supersaturation increases fouling, the wax deposition phenomenon produces, hinder, antiscaling effect is remarkable.Antiseptic property: solved the problem of oil field steel pipe corrosion-vulnerable under the impregnable prerequisite of mechanical performance, the acid-proof alkaline excellence, anti-neutral salt spray test surpasses 2000h.Heatproof, withstand voltage properties: the amorphous metal state is coated with (plating) layer heatproof can reach 600 ℃, can in 250 ℃ of hygrothermal environments, use for a long time; The withstand voltage properties of withstand voltage properties and former tubing is identical.The amorphous metal state is coated with (plating) layer and matrix material adhesion: the amorphous metal state is coated with (plating) layer and belongs to metallurgical binding with the adhesion of matrix, being coated with (plating) layer oozes and is integrated with matrix material, in the hygrothermal environment below 600 ℃, can use for a long time, bond strength is unaffected, can not come off.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite that does not break away from design concept of the present invention; various modification and improvement that in this area, common engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection, all be documented in claims.
Claims (7)
1. a slip-type underground packing and the comprehensive apparatus for eliminating sludge of throttling, is characterized in that, it comprises back-off sub (1), center-pole (2), upper slips (3), mandrel (4), lower slips (5), pin (6), upper packing element (7), lower rubber cylinder (8), thrust cylinder (9), oil nozzle (10), ball-and-seat (11), spring (12), adjusting rod (13), and resistance, scale prevention device (16), it is characterized in that under described back-off sub (1) connecting described mandrel (4), described center-pole (2) is installed in described mandrel (4), described oil nozzle (10) and described ball-and-seat (11) are installed under described center-pole (2) and described mandrel (4) in turn, described ball-and-seat (11) bottom is installed described spring (12) and described adjusting rod (13) in turn, described upper slips (3) and lower slips (5) are installed respectively in the outer top and the bottom of described mandrel (4), and bottom is installed in turn and connected described upper packing element (7), lower rubber cylinder (8) and thrust cylinder (9), the device foot connects alloy material fixed sheath (15).
2. slip-type underground packing as claimed in claim 1 and the comprehensive apparatus for eliminating sludge of throttling, wherein said resistance, scale prevention device comprises the core component made by specific alloy material (14), fluid ostium (17), modular connection (18) and described, alloy material fixed sheath (15), described specific alloy material (14) adopts by copper, nickel, antimony, tin, plumbous, zinc, 7 kinds of zirconiums etc. have different electronegative metallic element high temperature chemical combination and make, the proportioning of described 7 kinds of metallic elements is: copper 30%-60%, nickel 10%-30%, antimony 2%-9%, tin 15%-24%, plumbous 15%-30%, zinc 2%-9%, zirconium 3%-8%.
3. slip-type underground packing as claimed in claim 2 and the comprehensive apparatus for eliminating sludge of throttling, the described core component made by specific alloy material (14) is in described alloy material fixed sheath (15).
4. slip-type underground packing as claimed in claim 1 and the comprehensive apparatus for eliminating sludge of throttling, wherein said upper slips (3) and lower slips (5) are made by the corronil material.
5. the described slip-type underground packing of claim as arbitrary as claim 1-3 and the comprehensive apparatus for eliminating sludge of throttling, wherein said alloy material fixed sheath (15) surface has amorphous metal state material coating or coating.
6. slip-type underground packing as claimed in claim 5 and the comprehensive apparatus for eliminating sludge of throttling, wherein said amorphous metal state material coating or coating are that tungsten powder or nano-ceramic powder are formed by pyrolytic coating or electric plating method.
7. the comprehensive apparatus for eliminating sludge of slip-type underground packing and throttling as claimed in claim 2 or claim 3, the orifice plate that wherein said core component is made by the described specific alloy material of 8-15 sheet (14) forms, and is axially-aligned.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310382814.1A CN103437738B (en) | 2013-08-27 | 2013-08-27 | A kind of slip-type underground packing and the comprehensive apparatus for eliminating sludge that throttles |
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| CN201310382814.1A CN103437738B (en) | 2013-08-27 | 2013-08-27 | A kind of slip-type underground packing and the comprehensive apparatus for eliminating sludge that throttles |
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| CN103437738A true CN103437738A (en) | 2013-12-11 |
| CN103437738B CN103437738B (en) | 2016-11-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106150400A (en) * | 2016-08-30 | 2016-11-23 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of halogen mining well sleeve pipe curing means and method |
| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
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2013
- 2013-08-27 CN CN201310382814.1A patent/CN103437738B/en not_active Expired - Fee Related
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| US6142232A (en) * | 1998-07-15 | 2000-11-07 | Layne Christensen Company | Method and apparatus for cleaning wells |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150400A (en) * | 2016-08-30 | 2016-11-23 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of halogen mining well sleeve pipe curing means and method |
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| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
| CN111206899B (en) * | 2020-01-07 | 2022-02-01 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
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| CN103437738B (en) | 2016-11-16 |
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