CN101067370B - Adaptive filling expansion scree tube and expanding method thereof - Google Patents
Adaptive filling expansion scree tube and expanding method thereof Download PDFInfo
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- CN101067370B CN101067370B CN2007100143486A CN200710014348A CN101067370B CN 101067370 B CN101067370 B CN 101067370B CN 2007100143486 A CN2007100143486 A CN 2007100143486A CN 200710014348 A CN200710014348 A CN 200710014348A CN 101067370 B CN101067370 B CN 101067370B
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- radial expansion
- expanding
- expansion
- filling
- filter element
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- 230000003044 adaptive effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 9
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 20
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention provides one kind of adaptive filled expanding sieve tube for preventing sand in oil and gas well, and belongs to the field of petroleum drilling and extracting tool technology. The adaptive filled expanding sieve tube consists of supporting slotted tube, special filling coupler, radial expanding cover, radial expanding composite filter element, supporting rack, expanding block, expanding screw, plug and other parts. During well operation, the adaptive filled expanding sieve tube is set in the oil reservoir and filled with high pressure carrying solid particles, so that the composite filter element and the radial expanding cover can expand radially to contact with the inner wall of the production casing or the uncased hole to block sand and control the size of the passed sand. Compared with available technology, the present invention has the advantages of lowered expanding force, low operation cost and other advantages.
Description
Technical field
The invention belongs to drill and petroleum extraction tools field under the oil well, relate to adaptive filling expansion scree tube and expanding method thereof under a kind of oil well, be used for oil gas well sand control.
Background technology
Sand production of oil-gas wells is a subject matter of puzzlement loose sand oil accumulation exploitation, and it not only easily causes the underproduction, the stopping production of oil well, the wearing and tearing of aggravation ground and underground equipment, and also can cause the damage of sleeve pipe and oil well to scrap when serious.Document announcement, global oil well estimate at 40% the sand control that needs, and this ratio is also increasing progressively every year, this is because along with the oil field enters the ultra-high water-containing development period, extraction intensity is more and more higher, makes the oil well that does not originally shake out begin to shake out, and the oil well that originally slightly shakes out begins to shake out in a large number.Yet existing various anti-sand methods mostly are difficult to the competent middle and later periods and shake out serious or through the oil well of sand control treatment repeatedly, and the sand control task that goes out the fine silt horizontal well, and corresponding sand control treatment expense is more and more higher.How preventing effectively and controlling sand production is the problem that present each oil exploitation state is in the world competitively studied.
Existing various expandable sand control screen pipe all is based on the principle design of bulk expansion, there is following problems inevitably in it: if the well irregular, dwindle expandable screen meeting compacting near wellbore zone, place at hole diameter, be difficult for recovering the stratum reset condition during production, for hole diameter expansion place, can't realize " zero clearance " of the screen casing and the borehole wall or casing annulus, influence sand controlling result; In the screen expansion process, if can causing to expand, complex situations such as chance cave-in interrupt, be difficult to obtain satisfactory result; Can't realize separate zone production and hierarchical control; Well-completing process and equipment are complicated, cost is high, the tension and the anti-twisting property weakness of body and screwed connection place, when meeting card, and defective such as mobility is restricted.
Summary of the invention
The purpose of this invention is to provide adaptive filling expansion scree tube and expanding method thereof under a kind of oil well, be used for oil gas well sand control.
Principle of the present invention: but but the adaptive filling expansion scree tube of being invented mainly form by interior support slot pipe, special-purpose filling box cupling radial expansion cover radial expansion composite filter element, bracing frame, expanding block, swelling screw and shutoff etc.During the down-hole construction operation, require adaptive filling expansion scree tube to aim at the oil reservoir position, after used working string is good down, adopt pump truck and the filling in adaptive filling expansion scree tube of special-purpose packing tool to carry the highly pressurised liquid of solid particle, liquid flows out in adaptive filling expansion scree tube, but support between slot pipe and the radial expansion composite filter element in solid particle is blocked in, continuous injection along with packing fluid, the solid particle of filling is more and more, it is pushed the bulbs of pressure and constantly raises, but but bigger expansion force is pushed radial expansion composite filter element and radial expansion cover and is outwards done basic plastic-less deformation's expansion and expand, they are close on the inwall or the bore hole borehole wall of production casing, thereby realize the job requirements of " nullring sky ".But but because the high scalability of radial expansion composite filter element and radial expansion cover, and the mobile property of filling solid particle, even at well irregular place, still can realize the isotropism of " nullring sky " and the bulbs of pressure well.
The present invention compared with prior art has following advantage:
1. the present invention adopts the principle of demi-inflation to design adaptive filling expansion scree tube, compares with at present common bulk expansion screen casing, can make expansion force reduce more than 2 times, reduce by 2～3 times of operating costs and mechanical device simple.
2. but but the radial expansion composite filter element of adaptive filling expansion scree tube and radial expansion cover have the bigger storage level of freely expanding, and the mobile property of filling solid particle, can make above-mentioned two kinds of expanding layer under filling of carrying the solid particle high pressure liquid and push effect, do freely to expand expansion, even at well irregular place, still can realize the isotropism of " nullring sky " and the bulbs of pressure well.
3. adopt special-purpose packer and expansion process can realize separate zone production and hierarchical control to oil well.
4. easily produce sand plug at rectangular slits cutting seam sieve tube commonly used at present, and single trapezoidal seam cutting seam sieve tube sealing expansion that easily is worn, the problem that causes screen casing to lose efficacy, the interior support slot pipe of the adaptive filling expansion scree tube that the present invention proposes adopts the inventor to obtain " the compound die cavity cutting seam sieve tube " of utility model patent, and the structure of every slot of this screen casing all is to be made of the less bigger trapezoidal seam of trapezoidal seam, transition arc and angle of wide angle in outer connect successively to the pipe outer narrow of pipe.The trapezoidal seam that this screen casing skin is similar to rectangle is very little because of angle, can reduce the rate of wear of seam effectively, improves the application life of screen casing; The trapezoidal seam of internal layer wide-angle can reduce the flow resistance of seam to crude oil significantly, improves the recovery ratio of crude oil effectively.
Description of drawings
Fig. 1 is the structural representation according to the designed adaptive filling expansion scree tube that goes out of the present invention, and Fig. 1 is the sectional drawing of A-A position among Fig. 2.
Fig. 2 is the contour structures schematic diagram of adaptive filling expansion scree tube, also is the vertical view of Fig. 1.
The specific embodiment
Referring to Fig. 1.Adaptive filling expansion scree tube of the present invention is to adopt that but but equally distributed a plurality of swelling screws and expanding block are fixed in radial expansion composite filter element and radial expansion cover on the special-purpose filling box cupling on the circumference, special-purpose filling box cupling axially on also have pack hole, so that the passage of packing fluid to be provided.
Referring to Fig. 2.Adaptive filling expansion scree tube of the present invention mainly is made up of eight parts.The 1st, special-purpose filling box cupling is mainly used in connection between adaptive filling expansion scree tube, the filling passage is provided, supports the effect of expanding block etc.; The 2nd, but the radial expansion cover, be setback tubular structure radially, have radial direction through hole or straight joint radially on it, during expansion based on free expansion, basic plastic-less deformation, but be mainly used in protection radial expansion composite filter element, improve the expansion uniformity and the reliability of screen casing; The 3rd, but the radial expansion composite filter element, it is the radially setback tubular structure with compound mesh that adopts stainless steel wire establishment or sintering to form, be mainly used in the particle diameter that stops reservoir sand and control extraction sand, stop leaking of filling solid particle simultaneously, it can outwards expand expansion under the push effect of filling solid particle, mainly be radial wave folded structure generate circle when this course is expanded outward, substantially do not produce plastic strain, thereby the mesh size of the back filter core that expands is constant substantially, does not influence sand controlling result after promptly expanding; 4 bracing frames, but but be used for supporting radial expansion composite filter element and radial expansion cover, and make they with interior support slot pipe between the designed gap of maintenance, be beneficial to carry the smooth filling of solid particle high pressure liquid; The 5th, expanding block has been attacked screwed hole on it, and makes interference fit with the groove on the special-purpose filling box cupling, but but be used for fixing radial expansion composite filter element and radial expansion cover; The 5th, the swelling screw, but but be used to connect expanding block radial expansion composite filter element and radial expansion cover; The 7th, shutoff is welded on oil pipe or the sleeve pipe, is used for fixing expanding block, but but support radial expansion composite filter element and radial expansion cover, and stop the outflow of solid particle; The 8th, interior support slot pipe, its wall thickness is thicker, mainly plays support solid particle and outer expansion tube, and the sand control effect.
Claims (2)
1. adaptive filling expansion scree tube, this screen casing mainly comprises special-purpose filling box cupling (1), but radial expansion cover (2), but radial expansion composite filter element (3), bracing frame (4), expanding block (5), swelling screw (6), shutoff (7), the interior slot pipe (8) that supports, it is characterized in that: special-purpose filling box cupling (1) is made up of the axle sleeve of two sections different-diameters, slightly, on the thin axle sleeve groove is arranged all, the two ends endoporus of special-purpose filling box cupling is tapped hole, whole box cupling axially on through hole is arranged, special-purpose filling box cupling (1) is used for the connection between adaptive filling expansion scree tube, the filling passage is provided, support expanding block (5); But radial expansion cover (2) is to have the radially tubular structure of setback, have radial direction through hole or straight joint radially on it, but radial expansion cover (2) but inwall link to each other with the outer wall of radial expansion composite filter element (3), but radial expansion cover (2) but and radial expansion composite filter element (3) one ends be connected on the special-purpose filling box cupling (1) by expanding block (5) and swelling screw (6), the other end is connected in the shutoff (7) by expanding block (5) and swelling screw (6); But radial expansion composite filter element (3) is to have the radially tubular structure of setback, works out or fire with stainless steel wire to form; Bracing frame (4) is the radial wave folded structure that adopts the steel pole bending to form, bracing frame (4) but be used for supporting radial expansion composite filter element (3) but and radial expansion cover (2), but and make radial expansion composite filter element (3) but and the designed gap of maintenance between radial expansion cover (2) and interior support slot pipe; The interior slot pipe (8) that supports is in innermost layer, supports on the slot pipe in shutoff (7) is welded on.
2. the expanding method of an adaptive filling expansion scree tube, it is characterized in that: adopt pump truck and the filling in the adaptive filling expansion scree tube described in the claim 1 of special-purpose packing tool to carry the highly pressurised liquid of solid particle, liquid flows out in adaptive filling expansion scree tube, but support between slot pipe and the radial expansion composite filter element in solid particle is blocked in, continuous injection along with packing fluid, the solid particle of filling is more and more, it is pushed the bulbs of pressure and constantly raises, but but bigger expansion force is pushed radial expansion composite filter element and radial expansion cover and is outwards done basic plastic-less deformation's expansion and expand, they are close on the inwall or the bore hole borehole wall of production casing, thereby realize the job requirements of " nullring sky ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100143486A CN101067370B (en) | 2007-04-23 | 2007-04-23 | Adaptive filling expansion scree tube and expanding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100143486A CN101067370B (en) | 2007-04-23 | 2007-04-23 | Adaptive filling expansion scree tube and expanding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101067370A CN101067370A (en) | 2007-11-07 |
| CN101067370B true CN101067370B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100143486A Expired - Fee Related CN101067370B (en) | 2007-04-23 | 2007-04-23 | Adaptive filling expansion scree tube and expanding method thereof |
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| Country | Link |
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| CN (1) | CN101067370B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE509184T1 (en) * | 2007-11-22 | 2011-05-15 | Shell Int Research | METHOD FOR RADIAL EXPANSION OF A TUBULAR ELEMENT |
| GB2469213B (en) * | 2007-12-13 | 2013-01-16 | Shell Int Research | Wellbore system |
| CN101532378A (en) * | 2008-03-13 | 2009-09-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | Expandable sand control screen pipe |
| US7841409B2 (en) * | 2008-08-29 | 2010-11-30 | Halliburton Energy Services, Inc. | Sand control screen assembly and method for use of same |
| US8006770B2 (en) * | 2009-02-16 | 2011-08-30 | Halliburton Energy Services, Inc. | Expandable casing with enhanced collapse resistance and sealing capability |
| CN101994500B (en) * | 2010-10-13 | 2013-08-07 | 刘文西 | Expansion support horizontal screen pipe device and using method thereof |
| CN103967456A (en) * | 2014-05-23 | 2014-08-06 | 天津前云东方能源科技有限公司 | Expansion screen pipe |
| CN104047562A (en) * | 2014-06-13 | 2014-09-17 | 中国石油集团西部钻探工程有限公司 | Gas underbalance casing drilling well completion expansion pipe |
| RU2616952C1 (en) * | 2014-10-20 | 2017-04-18 | Чайна Юниверсити Оф Петролиум (Ист Чайна) | Movable composite pipe for sand control comprising filters with axial and radial slits |
| CN108122650A (en) * | 2016-11-29 | 2018-06-05 | 黄璜 | The special-shaped bushing pipe of change can be fitted |
| CN107403673A (en) * | 2017-09-20 | 2017-11-28 | 浙江衢州九天电气设备有限公司 | A kind of alignment pressure-bearing bushing pipe for manufacturing hollow combined insulator |
| US11312850B2 (en) * | 2017-11-24 | 2022-04-26 | Nok Corporation | Gasket material |
| CN108533235B (en) * | 2018-03-05 | 2019-06-18 | 中国石油大学(华东) | Expansion filling anti-sand method is wrapped up outside a kind of open hole well |
| CN109236186B (en) * | 2018-10-30 | 2020-03-06 | 中国石油大学(华东) | Well drilling casing and rapid well drilling and completion method for multilateral well of large well |
| CN112392447B (en) * | 2020-12-04 | 2022-04-19 | 中国石油大学(北京) | Sieve tube |
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2007
- 2007-04-23 CN CN2007100143486A patent/CN101067370B/en not_active Expired - Fee Related
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| CN101067370A (en) | 2007-11-07 |
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