CN101387191A - Immobile string cleaner for vertical pipeline and method - Google Patents
Immobile string cleaner for vertical pipeline and method Download PDFInfo
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- CN101387191A CN101387191A CNA2008101373418A CN200810137341A CN101387191A CN 101387191 A CN101387191 A CN 101387191A CN A2008101373418 A CNA2008101373418 A CN A2008101373418A CN 200810137341 A CN200810137341 A CN 200810137341A CN 101387191 A CN101387191 A CN 101387191A
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Abstract
The invention provides a cleaning appliance and a cleaning method for a fixed pipe column of an upright pipeline, which mainly solve the problems in the prior upright pipeline of time and labor consuming, easy damage of an oil pipe and an oil layer, and high cost. An ejector (11) in the device is as follows: an outer fin (1), an elastomer (2) and an inner fin (3) are overlaid in turn, and a screw (5) passes through the center and is fixed with a clamping nut (4) and a clamping nut (6); the upper part and the lower part of the ejector (11) are provided with curvature (SR) and curvature (XR) respectively; and the side face of the ejector (11) is uniformly provided with a plurality of gaps (14). The method for cleaning the pipe column by the device comprises the following steps: the device is placed underground at first; the ejector (11) is induced by terrestrial heat to perform elastic deformation; the lower curvature (XR) is completely opened, and the upper curvature (SR) is partially opened; and high-pressure water at the bottom passes through the bottom of the ejector (11) and forms jet flow on the gaps (14), so as to remove scale (7) on the wall of the pipe. The cleaning appliance has the characteristics of simple structure, no damage on pipes and no environmental pollution.
Description
Technical field:
The present invention relates to a kind of petroleum machinery field underground vertical pipeline inwall rust removing and contaminant releasing isolated plant and method, especially immobile string cleaner for vertical pipeline and method of being used for.
Background technology:
In the oil extraction process especially the middle and later periods waterflooding extraction be extensively employing both at home and abroad as keeping strata pressure and improving the effective means of tar productivity.For increasing well oil output, improve recovery ratio in recent years, the ternary composite driving technology of injection system chemical agent (mainly being alkali) is also used in a large number.Yet the injection of water and chemical agent, fluid mixes the generation physical-chemical reaction in one side and the stratum, react with rock forming mineral on the other hand, break the physical chemistry equilibrium state between former fluid and rock forming mineral, underground fluid and rock, mineral are changed.Non-miscible compound is entrained in together in the down-hole, and with the continuous variation of pressure and temperature, the mineral matter of dissolving makes the oil water mixture of output be in hypersaturated state.Dirt is precipitated out from water, is adsorbed on the metal surface, forms deposit hard, stratiform, makes oil well serious scale formation occur.Fouling reduces effective transmission caliber, and efficient reduces, and material consumption, energy consumption increase, and have increased cost for oil production.If occur in surface gathering system, directly influence profit and carry, the more important thing is to occur in oil recovery pit shaft, perforation eye, can directly cause technological process to be interrupted, equipment failure, even security incident takes place, therefore must often pipeline be cleaned and safeguard.
The cleaning of underground vertical pipeline always is the difficult point in the pipeline cleaning.Conventional at present method is to trip out tubing string, and segmentation is cleaned then, wastes time and energy.Cleaning under the condition of fixed tubular column generally can be divided into Chemical cleaning and physics and clean.The traditional handicraft of Chemical cleaning is " acid treatment process " yes, promptly the serious oil-water well of fouling is adopted acid washing method.There is following drawback in this " acid " processing method: 1. after dirt is by dissolving with hydrochloric acid, can form the calcium chloride solution of high concentration at regional area, this solution mixes with original stratum water system, and acidity descends, and brings out the secondary precipitation of calcium salt, causes the secondary fouling.2. sour descaling method is handled complexity, cost is high.3. corollary equipments such as oil pipe, pit shaft, well pump are corroded in the frequent pickling of oil-water well meeting, and reduction of service life, frequent acid fracturing can injure oil reservoir.Adopt positive displacement motor, milling cutter, the jump bit of band milling cutter or the fluidics of neat liquid in traditional physics descaling method.But milling cutter and similar cutting element can endanger the integrality of pipeline in operation process, in addition, their size is subjected to the restriction of the minimum spot size of oil well.The down-hole liquid liquid jet instrument is to use the scale removal that a plurality of jet orifices or calibration shower nozzle are realized whole well.Although some fluidic system is also used acid, its use only limits to the sour dirt that can dissolve and is suitable for the oil well of pickling, and the pure water jet is effectively to removing some soft dirts, but then powerless for hard scale.Hydrodynamic cavitation jet cleaning technique has been obtained good actual effect in the scale removal of various horizontal pipelines is cleaned, but at the cleaning of vertical pipeline also beyond example.
Adopt the Hydrodynamic cavitation jet to clean skill, under the fixed tubular column condition, clean vertical pipeline, mainly have following technical problem.These underground vertical pipeline length mostly about 1000m, are cleaned under the fixed tubular column condition, and current must be unidirectional, can only from the bottom up dirty matter be discharged with current, cause the pit shaft obstruction to be scrapped otherwise will cause dirty matter to pile up in the shaft bottom.There is a process that gets on, get off in cleaning process like this, and smooth and easy in order to guarantee in the process of transferring, the diameter of ejector is less than the caliber after the fouling.Ejector is in the process of upwards work simultaneously, and ejector will open is close to inwall to guarantee cleaning performance.And existing cavitation jet washer can't satisfy this operating mode, can't realize the cleaning of vertical pipeline fixed tubular column.
Summary of the invention:
For overcome existing vertical pipeline clean waste time and energy, easy damaged oil pipe and oil reservoir, deficiency that cost is high, the invention provides a kind of immobile string cleaner for vertical pipeline and method, characteristics simple in structure, low cost of manufacture that this immobile string cleaner for vertical pipeline has, use the method for this device cleaning vertical pipeline easy to operate, cleaned, and to pipeline not damaged, environmentally safe.
Technical scheme of the present invention is: a kind of immobile string cleaner for vertical pipeline, form by wire rope, upper and lower nut, ejector, counterweight, ejector is passed its center by screw rod after being superposeed successively by outer fin, elastic body, inner fin, fix screw rod by inside and outside binding nut, and there is not upper and lower curvature at the ejector two ends, and the side is arranged several slits equably.
A kind of vertical pipeline fixed tubular column cleaning method that utilizes the described cleaning device of claim 1 is characterized in that:
Cleaning device is connected with the ground cable car, rotate cable car and slide into pipeline terminal under it, ejector brings out elastic deformation by underground heat makes that curvature is opened fully down, last curvature partially opens, and by injecting water under high pressure in the sleeve pipe, water under high pressure is behind the shaft bottom then, again upwards by the ejector bottom, the place forms jet in the slit, can remove the dirty matter in the structural tube, promotes upwards operation of ejector simultaneously.
The present invention has following beneficial effect: 1, this cleaning device is simple in structure, making is easy, cost is low; 2, the fin of ejector adopts memorial alloy to make, and utilizes the different underground heat temperature trigger deformation of Different Strata, has solved key problem---the reducing problem of ejector in the underground vertical fouling pipeline fixed tubular column cleaning process; 3, utilize the Hydrodynamic cavitation effect, in cleaning process, produce powerful microjet and the cavity shock wave of crumbling and fall, multiple dirty matter such as the grease in the pipeline, chemistry dirt, incrustation scale, rust deposite, soft dirt, viscosity dirt are removed, have cleaning performance preferably; 4, the ejector skin does not have roomy blade, and current do not have obstacle to act directly on the dirty matter after forming cavitation jet by narrow slit, have improved cavitation jet pressure; 5, ejector is close on the dirty matter, follow the shape of dirty matter, active area strengthens, the fluid barrier area is little between cavitation jet and the dirty matter, the impact energy loss of jet is little, and cavity also directly crumbles and fall in dirty matter surface impacts in a large number, with significantly reducing that current wash away, improved the rate that effectively vanishes of cavity; 6, the slit of elasticity fin makes the diameter shrinkage ratio of ejector can reach 30%, and handling capacity can be prevented jam by force; 7, the present invention adopts pure physics cleaning technique, to the pipeline not damaged, and environmentally safe, and can not produce the secondary fouling.
Description of drawings:
Accompanying drawing 1 is the structural representation of ejector among the present invention;
Accompanying drawing 2 is the sectional views along A-A in the accompanying drawing 1;
Accompanying drawing 3 is schematic diagrames that the present invention transfers state;
Accompanying drawing 4 is schematic diagrames of duty of the present invention;
Accompanying drawing 5 is the sectional views along B-B in the accompanying drawing 4;
Accompanying drawing 6 is ejector fin and elastic body expanded view.
1-outer fin among the figure, 2-elastic body, 3-inner fin, 4-interior binding nut, 5-screw rod, 6-outer binding nut, 7-dirty matter, 8-structural tube, 9-wire rope, 10-top nut, 11-ejector, 12-lower nut, 13-counterweight, 14-slit.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
By shown in Figure 3, a kind of immobile string cleaner for vertical pipeline, by wire rope 9, nut (10,12), ejector 11, counterweight 13 are formed, ejector 11 upper/lower terminals connect wire rope 9 by nut (10,12), and wire rope 9 lower ends of bottom connect counterweight 13, the effect of counterweight 13 is in order to overcome buoyancy of water in the pipeline, to make the smooth G.I.H of cleaning device.Wire rope 9 tops on top connect cable car, make the device G.I.H, perhaps when device is met card in well, it are mentioned ground.
The structure of ejector 11 is by Figure 1 and Figure 2, after ejector 11 is superposeed successively by outer fin 1, elastic body 2, inner fin 3 screw rod 5 is passed the center and also fix inside and outside binding nut (4,6) form, and its upper/lower terminal does not have upper and lower curvature (SR, XR), upper and lower curvature (SR, XR) be two fillets, its radius is set according to the size of structural tube 8 internal diameters, following curvature XR purpose be assurance device in transferring process on the unlikely dirty matter 7 that is stuck in the structural tube 8, each ejector 11 was made according to the pipeline internal diameter before cleaning begins.Ejector 11 sides are arranged several slits 14 equably, form one and play shape ejector 11, when this cleaning device work, High-Pressure Water flows through in pipeline, make elastic body 2 outwardly-bent being wrapped on the outer fin 1, form narrow slit 14, slit 14 makes the diameter shrinkage ratio of ejector 11 can reach 30%, and handling capacity can be prevented jam by force.
Fig. 6 is the fin (1 in the ejector 11,3) and the expanded view of elastic body 2, inside and outside layer fin (1,3) material, shape are all identical, its material is a memorial alloy, and the composition of memorial alloy and manufacture craft are by the formation temperature decision of living in of cleaning pipeline terminal, fin (1,3) and not have cut part in the middle of the elastic body 2 be the water shutoff area, the water shutoff area is 1/4 ± 10% of structural tube 8 internal diameter areas to be cleaned; The material of elastic body 2 is polyurethane or silicon rubber, and the width of elastic body 2 individual blades is the thickness that fin 1 (or fin 3) individual blade width adds 1.8 times of fins 1 (or fin 3); Fin (1,3) and the blade number and the thickness of elastic body 2, the ratio that guarantees to enter the width of slit 14 behind the pipe to be cleaned and thickness is between 1:2-1:10, single fin (1,3) width is 2-3 a times of thickness, and the ratio of the internal diameter girth of the overall width of slit 14 and pipe to be cleaned is between 1:3-1:10 simultaneously; Last curvature SR is 1/3 ± 10% of a pipe caliber to be cleaned, and following curvature XR is 5-15 a times of memorial alloy fin 1 (or fin 3) thickness.
Schematic diagram when Fig. 3 transfers for this cleaning device, at this moment, (SR XR) is original state to upper and lower curvature, and ejector 11 tops are risen by cable car person, slide to pipeline terminal by underground under the effect of counterweight 13.Fig. 4 and Fig. 5 are the schematic diagram under the duty, at this moment, under the effect of down-hole high pressure current, following curvature XR opens fully, and last curvature SR partially opens, elastic body 2 outwardly-bent being wrapped on the outer fin 1, between two blades that face mutually, form narrow slit 14, High-Pressure Water forms jet by narrow gap 14 in the exit, and the dirty matter 7 in the structural tube 8 is removed.
Utilize the cleaning method of this cleaning device to the vertical pipeline fixed tubular column:
1., the ejector 11 will be in advance made according to tubing string internal diameter to be cleaned and nut (10,12) and wire rope 9, counterweight 13 connect, wire rope 9 is provided by the ground cable car;
2., rotating cable car transfers cleaning device, determine the degree of depth that is lowered to according to the length of the wire rope 9 of G.I.H, when this device during down to the shaft bottom, stop cable car and rotate, spend 5-10 minute after, the ejector made by memorial alloy 11 brings out deformation by underground heat, open and recover original shape, following curvature XR opens fully, and last curvature SR partially opens, ejector 11 is owing to the effect of fin (1,3) self elasticity and last curvature SR is close on the dirty matter 7;
3., then by injecting water under high pressure to the down-hole in the sleeve pipe, water under high pressure is behind the shaft bottom, upwards pass through the bottom of ejector 11 again, form jet at narrow gap 14 places, and because the Hydrodynamic cavitation effect---fluid can produce the pressure drop district when flowing through a constriction device, when pressure was reduced to vapour pressure even negative pressure, the gas that is dissolved in the fluid can discharge, fluid vaporization and produce a large amount of cavitation bubbles simultaneously, thus cavitation jet produced.Cavity is in the further process of flowing with fluid, and when impact tube wall pressure power increases, volume will sharply dwindle until crumbling and fall, and the instantaneous sharp powerful microjet that penetrates has been pulverized deposit and cleaned dirty matter under the synergy that jet and cavity are crumbled and fall;
4., along with the rising of High-Pressure Water, take the dirty matter of being fallen clearly out of, and ejector 11 rises thereupon also, thereby from bottom to top removes the dirty matter in the tube wall.
Claims (4)
1, a kind of immobile string cleaner for vertical pipeline, by wire rope (9), nut (10,12), ejector (11), counterweight (13) are formed, it is characterized in that: ejector (11) is passed its center by screw rod (5) after being superposeed successively by outer fin (1), elastic body (2), inner fin (3), fix screw rod (5) by inside and outside binding nut (4,6), and ejector (11) two ends there is upper and lower curvature (SR respectively, XR), the side is arranged several slits (14) equably.
2, a kind of vertical pipeline fixed tubular column cleaning method that utilizes the described cleaning device of claim 1 is characterized in that:
Cleaning device is connected with the ground cable car, rotate cable car and slide into pipeline terminal under it, ejector (11) brings out elastic deformation by underground heat makes that curvature (XR) is opened fully down, last curvature (SR) partially opens, and injects water under high pressure to the down-hole then, and water under high pressure is behind the shaft bottom, again upwards by ejector (11) bottom, (14) locate to form jet in the slit, can remove the dirty matter (7) in the structural tube (8), promote upwards operation of ejector (11) simultaneously.
3, immobile string cleaner for vertical pipeline according to claim 1 is characterized in that: the width of slit (14) and thickness are than between 1:2-1:10.
4, immobile string cleaner for vertical pipeline according to claim 1 is characterized in that: the width of single fin (1,3) is 2-3 a times of thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101373418A CN101387191B (en) | 2008-10-17 | 2008-10-17 | Immobile string cleaner for vertical pipeline and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101373418A CN101387191B (en) | 2008-10-17 | 2008-10-17 | Immobile string cleaner for vertical pipeline and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101387191A true CN101387191A (en) | 2009-03-18 |
| CN101387191B CN101387191B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101373418A Expired - Fee Related CN101387191B (en) | 2008-10-17 | 2008-10-17 | Immobile string cleaner for vertical pipeline and method |
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| CN (1) | CN101387191B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114590A (en) * | 2013-02-19 | 2013-05-22 | 青岛宝基利工程技术咨询有限公司 | Device for cleaning bored pile steel protective case inner wall mud and application method thereof |
| CN103240245A (en) * | 2013-05-17 | 2013-08-14 | 中国海洋石油总公司 | High-cleanness series washing device and method for underwater production pipeline |
| CN105114016A (en) * | 2015-08-19 | 2015-12-02 | 中国石油天然气集团公司 | Tubular column cleaning device |
| CN105407769A (en) * | 2013-07-17 | 2016-03-16 | 雀巢产品技术援助有限公司 | A food or beverage preparation machine with antiscaling pipe system |
| CN109047211A (en) * | 2018-06-22 | 2018-12-21 | 李兴文 | A kind of cleaning device cleaning vertical tube inner wall |
| CN109653709A (en) * | 2018-12-11 | 2019-04-19 | 中国石油天然气集团有限公司 | A kind of annular space cavitation jet washer |
| CN116220541A (en) * | 2023-05-10 | 2023-06-06 | 广东地山基础工程有限公司 | Construction device and construction method for full-casing full-rotary drilling machine in karst area |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534158A1 (en) * | 1982-10-07 | 1984-04-13 | Alsthom Atlantique | DEVICE FOR EROSIONING A SOLID SURFACE BY A CAVITANT FLOW |
| CN1361346A (en) * | 2000-12-29 | 2002-07-31 | 中国石油天然气股份有限公司 | Repeated pressure applying and releasing pulsed unblocking process |
| CN2577988Y (en) * | 2002-11-19 | 2003-10-08 | 王刚 | Micro-bubble pipe cleaner |
| CN1959058B (en) * | 2005-11-02 | 2010-06-02 | 中国石油大学(北京) | Rotary dual jet flows boring method under high pressure |
| CN2880284Y (en) * | 2006-03-27 | 2007-03-21 | 腾凤阁 | Jet-flow pipe cleaning device |
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2008
- 2008-10-17 CN CN2008101373418A patent/CN101387191B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114590A (en) * | 2013-02-19 | 2013-05-22 | 青岛宝基利工程技术咨询有限公司 | Device for cleaning bored pile steel protective case inner wall mud and application method thereof |
| CN103114590B (en) * | 2013-02-19 | 2014-09-03 | 青岛宝基利工程技术咨询有限公司 | Device for cleaning bored pile steel protective case inner wall mud and application method thereof |
| CN103240245A (en) * | 2013-05-17 | 2013-08-14 | 中国海洋石油总公司 | High-cleanness series washing device and method for underwater production pipeline |
| CN105407769A (en) * | 2013-07-17 | 2016-03-16 | 雀巢产品技术援助有限公司 | A food or beverage preparation machine with antiscaling pipe system |
| CN105114016A (en) * | 2015-08-19 | 2015-12-02 | 中国石油天然气集团公司 | Tubular column cleaning device |
| CN105114016B (en) * | 2015-08-19 | 2017-12-05 | 中国石油天然气集团公司 | String cleaner |
| CN109047211A (en) * | 2018-06-22 | 2018-12-21 | 李兴文 | A kind of cleaning device cleaning vertical tube inner wall |
| CN109047211B (en) * | 2018-06-22 | 2021-06-29 | 李兴文 | Cleaning device for cleaning inner wall of vertical oil pipe |
| CN109653709A (en) * | 2018-12-11 | 2019-04-19 | 中国石油天然气集团有限公司 | A kind of annular space cavitation jet washer |
| CN116220541A (en) * | 2023-05-10 | 2023-06-06 | 广东地山基础工程有限公司 | Construction device and construction method for full-casing full-rotary drilling machine in karst area |
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| Publication number | Publication date |
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| CN101387191B (en) | 2011-11-09 |
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Granted publication date: 20111109 Termination date: 20171017 |