CN105756626A - Anti-damage screen pipe for horizontal well completion of shallow oil reservoir - Google Patents
Anti-damage screen pipe for horizontal well completion of shallow oil reservoir Download PDFInfo
- Publication number
- CN105756626A CN105756626A CN201610309038.6A CN201610309038A CN105756626A CN 105756626 A CN105756626 A CN 105756626A CN 201610309038 A CN201610309038 A CN 201610309038A CN 105756626 A CN105756626 A CN 105756626A
- Authority
- CN
- China
- Prior art keywords
- base tube
- oil
- oil reservoir
- wrapping wire
- shallow oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 241000605008 Spirillum Species 0.000 claims description 20
- 230000002265 prevention Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 31
- 235000019198 oils Nutrition 0.000 description 31
- 239000010779 crude oil Substances 0.000 description 15
- 239000007790 solid phase Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 10
- 235000019476 oil-water mixture Nutrition 0.000 description 10
- 238000011084 recovery Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 238000010795 Steam Flooding Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010793 Steam injection (oil industry) Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 238000005325 percolation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- -1 gravels in profit Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an anti-damage screen pipe for horizontal well completion of a shallow oil reservoir. The screen pipe comprises a base pipe, wherein multiple oil inlets are formed in the outer wall of the base pipe; multiple reinforcing ribs are arranged on the outer circumferential wall of the base pipe in the axial direction of the base pipe; wound wires are wound on the multiple reinforcing ribs at intervals in the circumferential direction of the base pipe; foamed iron shaped into a triangular block is filled between every two adjacent reinforcing ribs. When the screen pipe works, the base pipe is arranged on the horizontal section of horizontal well completion, and thick oil enters in gaps formed by the wound wires and a casing through gaps of the wound wires, and enters the base pipe through the oil inlet to implement pumping of the oil after being filtered by the foamed iron.
Description
Technical field
The present invention relates to field of petroleum exploitation, specifically refer to a kind of shallow oil reservoir horizontal completion loss prevention screen casing.
Background technology
Petroleum resources are present among the oil reservoir naturally occurred, and its production technique is different with Oil Reservoir Types, primary characteristic difference.Viscous crude, also referred to as heavy oil and high viscosity heavy crude, refers to the heavy crude that viscosity is high, density is big, resin and asphalt content is higher, i.e. high viscosity heavy crude, and general paraffin content is less, thus viscosity of crude is higher, and flow resistance is relatively big, and exploitation difficulty is big.
Viscous crude is the important component part in the petroleum hydrocarbon energy, and its feature is as follows:
(1) colloid in viscous crude is high with bitumen content, and light ends is little.And along with resin and asphalt
Content increases the relative density of viscous crude and viscosity also increases accordingly.
(2) thick oil viscosity is for very temperature sensitive, and along with the increase of temperature, viscosity sharply declines.And
Viscosity of crude is more big, and this change is more obvious.
(3) in viscous crude, the hetero atom such as sulfur, oxygen, nitrogen is more.
(4) in viscous crude, paraffin content is generally relatively low, but also having only a few oil field is " double; two high oil field ", and namely asphalt content is high, paraffin content is also high, is characterized as high viscosity high condensation point crude oil.
(5) same heavy crude reservoir, oil property usually has very big difference between each well in the different well sections and plane of vertical oil reservoir.
The heavy oil reserves of China is enriched, and viscous crude annual production accounts for the 10% of crude oil total output, and according to China's Second National resource assessment data, viscous crude stock number there are about 8198.710t.But under formation temperature conditions, thick oil viscosity is too high, it is difficult to flowing, is difficult to extraction with conventional oil production method.Because viscosity is relatively big, so its recovery method is different from the recovery method of ordinary crude oils, this is to be determined by the feature of viscous crude.Thick oil viscosity is too high, and the mobility ratio of water is too high, uses the oil extraction method of routine to carry out heavy crude producing effect very little.
At present, each elephant of China improves the method for thick oil recovery ratio and is mainly steam soak and steam flooding, but after carrying out steam soak and steam flooding, its recovery percent of reserves is up to 60%, has the viscous crude of nearly 40% handle up in high round and be not plucked out of after steam flooding.Heavy crude reservoir is after implementing steam flooding, and reservoir temperature, pressure there occurs notable change, and between hole, between remaining oil saturation, well, remaining oil distribution also changes therewith.But burying shallower due to oil reservoir, reservoir loose cementation so that horizontal well easily occurs that when exploitation set damage, screen damage, packer damage or shake out phenomenon, have a strong impact on the development effectiveness of horizontal well.
Summary of the invention
It is an object of the invention to provide a kind of shallow oil reservoir horizontal completion loss prevention screen casing, while facilitating viscous crude Fast Algorithm for Mining, it is to avoid the blocking of screen casing and damage.
The purpose of the present invention is achieved through the following technical solutions:
A kind of shallow oil reservoir horizontal completion loss prevention screen casing, including the base tube having multiple fuel feed hole on outer wall, on its outer circle wall, multiple ribs axially it is provided with along described base tube, wrapping wire forms an isometrical spirillum along base tube circle to coiling outside multiple described ribs, the foamed iron block in triangle it is filled with between two adjacent ribs, and in the middle part of described isometrical spirillum, inwall is welded with ring for fixing, ring for fixing inner peripheral wall rotates and is provided with multiple ball, also include the guide rail of annular, described guide rail runs through in the middle part of multiple ribs along base tube circumference, and have and the annular groove of multiple ball engagement on guide rail outer circle wall.
When the present invention works, base tube is placed in the horizontal segment of horizontal completion, and viscous crude enters into wrapping wire by wire spacing and in the gap of sleeve pipe formation, after the filtration of foamed iron, entering into substrate tube through fuel feed hole, to realize the pumping of fluid；In prior art, steam flooding technology is adopted when viscous crude is exploited, namely steam injection well and producing well it is provided above at oil reservoir, steam injection well constantly passes through steam, steam is made constantly to heat the stratum around pit shaft, crude oil in stratum is also heated simultaneously, the stratum of near wellbore is formed the steam zone progressively extended with constantly injecting of steam, steam can will drop to relatively low degree containing saturation in steam zone, and flowable crude oil (i.e. the difference of initial oil saturation and residual oil saturation) is displaced steam zone；Meanwhile, in the horizontal segment of horizontal completion, steam moves to updip direction consumingly, and under the force of gravity, the crude oil that is heated is driven onto and has a down dip reversely, and the increase of the temperature along with crude oil, the mixture such as profit in horizontal completion horizontal segment and gravel will boiling, crude oil is caused to be degraded (because of the disturbance that the boiling of mixture is caused), the mixture of profit and solid phase starts to be entered into substrate tube by horizontal completion horizontal segment, wrapping wire is a complete metal bar and is wound on multiple ribs by interval, form the primary filter unit to major diameter solid phases such as gravels in profit, and foam iron rule forms the secondary filter unit to minor diameter solid phase, to realize the sand control purpose of base tube；
And, when being subject to fluid pressure and the self-contained heat effects of profit in horizontal completion horizontal segment and cause producing pressure change, the secondary filter interval formed between two adjacent ribs is compressed, but in this secondary filter interval, it is filled with multiple foamed iron block in triangle, foamed iron is after stress deforms upon, the runner that still can form multiple irregular geometric figures in secondary filter interval passes through for oil water mixture, and foamed iron inner duct stress generation minor variations and be not easy to be blocked, foamed iron has certain elasticity simultaneously, when elasticity recovery deformation, the duct in foamed iron resets, to maintain the percolation ability in secondary filter interval, ensure the smooth exploitation of viscous crude.
Further, when oil water mixture enters in base tube, the motion of fluid in the whole horizontal completion horizontal segment driven because of oil water mixture motion, and the pressure applied in all directions to wrapping wire on the isometrical spirillum that formed due to fluid in horizontal segment is different, when isometrical spirillum both sides discontinuity equalization, by being mutually slidably matched between ball and annular groove, isometrical spirillum is made to start slow rotation outside base tube, and now part is connected to the solid phases such as sand grains in isometrical spirillum gap and can directly drop along with isometrical spirochetal rotation and washing away of oil water mixture, avoid isometrical spirillum occurs serious clogging, ensure the stability of oil-feed in base tube.
Also including multiple reinforcement, multiple described reinforcements axially and are ringwise distributed on wrapping wire along described base tube.In the horizontal segment of horizontal completion, wrapping wire not only to be limited by the pressure of oil reservoir, and the moment change with the change of reservoir temperature of this pressure, namely in the abrupt change process of pressure, wrapping wire is highly prone to damage, and the present invention by arranging multiple reinforcement being distributed ringwise on wrapping wire so that the first filter element that wrapping wire is formed stably is supported, to tackle the production pressure being continually changing in horizontal segment in horizontal completion, extend the service life of himself simultaneously.
Described wrapping wire outer wall scribbles TiALN-WC/C layer.As preferably, at wrapping wire outer wall, TiALN-WC/C coating is set, and the coefficient of friction of TiALN-WC/C coating only has 0.1, when the solid phases such as sand grains constantly contact with wrapping wire, can greatly reduce frictional dissipation between the two, and with self lubricity, greatly guarantee wrapping wire service life in horizontal completion.
Also including union joint, the two ends of described base tube are connected with blind pipe respectively through union joint.As preferably, according to the needs that reality is recovered the oil, base tube is connected with blind pipe by union joint, facilitate the pumping of crude oil, and the mode that abandoning tradition blind pipe directly welds with base tube when laying, directly changing wrapping wire when wrapping wire damages without base tube, wrapping wire being carried out integral replacing to facilitate, reducing the production cost of thickened oil recovery.
Multiple described balls are rounded and array distribution is on the inner peripheral wall of described ring for fixing.As preferably, multiple balls are evenly distributed on the inner peripheral wall of ring for fixing, namely more balanced in the isometrical spirochetal support that wrapping wire is formed, and when isometrical spirillum is freely rotatable outside base tube, do not result in isometrical spirillum and stress raisers occur, while reducing wrapping wire damage, it is ensured that the oil-feed efficiency in base tube.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention is when being subject to fluid pressure and the self-contained heat effects of profit and cause producing pressure change in horizontal completion horizontal segment, the secondary filter interval formed between two adjacent ribs is compressed, but in this secondary filter interval, it is filled with multiple foamed iron block in triangle, foamed iron is after stress deforms upon, the runner that still can form multiple irregular geometric figures in secondary filter interval passes through for oil water mixture, and foamed iron inner duct stress generation minor variations and be not easy to be blocked, foamed iron has certain elasticity simultaneously, when elasticity recovery deformation, the duct in foamed iron resets, to maintain the percolation ability in secondary filter interval, ensure the smooth exploitation of viscous crude；
2, the present invention is when being subject to fluid pressure and the self-contained heat effects of profit and cause producing pressure change in horizontal completion horizontal segment, the secondary filter interval formed between two adjacent ribs is compressed, but in this secondary filter interval, it is filled with multiple foamed iron block in triangle, foamed iron is after stress deforms upon, the runner that still can form multiple irregular geometric figures in secondary filter interval passes through for oil water mixture, and foamed iron inner duct stress generation minor variations and be not easy to be blocked, foamed iron has certain elasticity simultaneously, when elasticity recovery deformation, the duct in foamed iron resets, to maintain the percolation ability in secondary filter interval, ensure the smooth exploitation of viscous crude；
3, the present invention arranges TiALN-WC/C coating at wrapping wire outer wall, and the coefficient of friction of TiALN-WC/C coating only has 0.1, when the solid phases such as sand grains constantly contact with wrapping wire, can greatly reduce frictional dissipation between the two, and with self lubricity, greatly guarantee wrapping wire service life in horizontal completion.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the longitdinal cross-section diagram of the present invention.
Labelling and corresponding parts title in accompanying drawing:
1-reinforcement, 2-wrapping wire, 3-ribs, 4-base tube, 5-fuel feed hole, 6-union joint, 7-blind pipe, 8-foamed iron, 9-ring for fixing, 10-guide rail, 11-ball.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment and the explanation thereof of the present invention are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1 to Figure 2, the present embodiment includes the base tube 4 having multiple fuel feed hole 5 on outer wall, axially on its outer circle wall, multiple ribs 3 it is provided with along described base tube 4, wrapping wire 2 forms an isometrical spirillum along base tube 4 circle in multiple described outer coilings of ribs 3, the foamed iron 8 block in triangle it is filled with between two adjacent ribs 3, and in the middle part of described isometrical spirillum, inwall is welded with ring for fixing 9, ring for fixing 9 inner peripheral wall rotates and is provided with multiple ball 11, also include the guide rail 10 of annular, described guide rail 10 runs through in the middle part of multiple ribs 3 along base tube 4 circumference, and on guide rail 10 outer circle wall, have the annular groove coordinated with multiple balls 11.
During work, base tube 4 is placed in the horizontal segment of horizontal completion, and viscous crude enters into wrapping wire 2 by wrapping wire 2 gap and in the gap of sleeve pipe formation, after the filtration through foamed iron 8, enters into base tube 4 through fuel feed hole 5 internal, to realize the pumping of fluid.
In prior art, steam flooding technology is adopted when viscous crude is exploited, namely steam injection well and producing well it is provided above at oil reservoir, steam injection well constantly passes through steam, steam is made constantly to heat the stratum around pit shaft, crude oil in stratum is also heated simultaneously, the stratum of near wellbore is formed the steam zone progressively extended with constantly injecting of steam, steam can will drop to relatively low degree containing saturation in steam zone, and flowable crude oil (i.e. the difference of initial oil saturation and residual oil saturation) is displaced steam zone；Meanwhile, in the horizontal segment of horizontal completion, steam moves to updip direction consumingly, and under the force of gravity, the crude oil that is heated is driven onto and has a down dip reversely, and the increase of the temperature along with crude oil, the mixture such as profit in horizontal completion horizontal segment and gravel will boiling, crude oil is caused to be degraded (because of the disturbance that the boiling of mixture is caused), the mixture of profit and solid phase starts by entering into base tube 4 in horizontal completion horizontal segment internal, wrapping wire 2 is a complete metal bar and is wound on multiple ribs 3 by interval, form the primary filter unit to major diameter solid phases such as gravels in profit, foamed iron 8 then forms the secondary filter unit to minor diameter solid phase, to realize the sand control purpose of base tube 4；And, when being subject to fluid pressure and the self-contained heat effects of profit in horizontal completion horizontal segment and cause producing pressure change, the secondary filter interval formed between two adjacent ribs 3 is compressed, but in this secondary filter interval, it is filled with multiple foamed iron 8 block in triangle, foamed iron 8 is after stress deforms upon, the runner that still can form multiple irregular geometric figures in secondary filter interval passes through for oil water mixture, and foamed iron 8 inner duct stress generation minor variations and be not easy to be blocked, foamed iron 8 has certain elasticity simultaneously, when elasticity recovery deformation, the duct in foamed iron 8 resets, to maintain the percolation ability in secondary filter interval, ensure the smooth exploitation of viscous crude.
Further, when oil water mixture enters in base tube 4, the motion of fluid in the whole horizontal completion horizontal segment driven because of oil water mixture motion, and the pressure applied in all directions to wrapping wire 2 on the isometrical spirillum that formed due to fluid in horizontal segment is different, when isometrical spirillum both sides discontinuity equalization, by being mutually slidably matched between ball 11 and annular groove, isometrical spirillum is made to start slow rotation outside base tube 4, and now part is connected to the solid phases such as sand grains in isometrical spirillum gap and can directly drop along with isometrical spirochetal rotation and washing away of oil water mixture, avoid isometrical spirillum occurs serious clogging, ensure the stability of oil-feed in base tube 4.
The present embodiment also includes multiple reinforcement 1, and multiple described reinforcements 1 axially and are ringwise distributed on wrapping wire 2 along described base tube 4.In the horizontal segment of horizontal completion, wrapping wire 2 not only to be limited by the pressure of oil reservoir, and the moment change with the change of reservoir temperature of this pressure, namely in the abrupt change process of pressure, wrapping wire 2 is highly prone to damage, and the present invention by arranging multiple reinforcement 1 being distributed ringwise on wrapping wire 2 so that the first filter element that wrapping wire 2 is formed stably is supported, to tackle the production pressure being continually changing in horizontal segment in horizontal completion, extend the service life of himself simultaneously.
As preferably, multiple described balls 11 are rounded and array distribution is on the inner peripheral wall of described ring for fixing 9.Multiple balls 11 are evenly distributed on the inner peripheral wall of ring for fixing 9, namely more balanced in the isometrical spirochetal support that wrapping wire 2 is formed, and when isometrical spirillum is freely rotatable outside base tube 4, do not result in isometrical spirillum and stress raisers occur, while reducing wrapping wire 2 damage, it is ensured that the oil-feed efficiency in base tube 4.
As preferably, at wrapping wire 2 outer wall, TiALN-WC/C coating is set, and the coefficient of friction of TiALN-WC/C coating only has 0.1, when the solid phases such as sand grains constantly contact with wrapping wire 2, can greatly reduce frictional dissipation between the two, and with self lubricity, the greatly guarantee wrapping wire 2 service life in horizontal completion.
As preferably, according to the needs that reality is recovered the oil, base tube 4 is connected with blind pipe 7 by union joint 6, facilitate the pumping of crude oil, and the mode that abandoning tradition blind pipe 7 directly welds with base tube 4 when laying, directly changing wrapping wire 2 when wrapping wire 2 damages without base tube 4, wrapping wire 2 being carried out integral replacing to facilitate, reducing the production cost of thickened oil recovery.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
- null1. a shallow oil reservoir horizontal completion loss prevention screen casing，Including the base tube (4) having multiple fuel feed hole (5) on outer wall，It is characterized in that: axially on its outer circle wall, be provided with multiple ribs (3) along described base tube (4)，Wrapping wire (2) forms an isometrical spirillum along base tube (4) circle in the outer coiling of multiple described ribs (3)，The foamed iron (8) block in triangle it is filled with between two adjacent ribs (3)，And inwall is welded with ring for fixing (9) in the middle part of described isometrical spirillum，Ring for fixing (9) inner peripheral wall rotates and is provided with multiple ball (11)，Also include the guide rail (10) of annular，Described guide rail (10) runs through multiple ribs (3) middle part along base tube (4) circumference，And on guide rail (10) outer circle wall, have the annular groove coordinated with multiple balls (11).
- 2. a kind of shallow oil reservoir horizontal completion loss prevention screen casing according to claim 1, it is characterised in that: also including multiple reinforcement (1), multiple described reinforcements (1) axially and are ringwise distributed on wrapping wire (2) along described base tube (4).
- 3. a kind of shallow oil reservoir horizontal completion loss prevention screen casing according to claim 1, it is characterised in that: on described wrapping wire (2) outer wall, scribble TiALN-WC/C layer.
- 4. a kind of shallow oil reservoir horizontal completion loss prevention screen casing according to claim 1, it is characterised in that: also including union joint (6), the two ends of described base tube (4) are connected with blind pipe (7) respectively through union joint (6).
- 5. a kind of shallow oil reservoir horizontal completion loss prevention screen casing according to claim 1, it is characterised in that: multiple described balls (11) are rounded and array distribution is on the inner peripheral wall of described ring for fixing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309038.6A CN105756626A (en) | 2016-05-11 | 2016-05-11 | Anti-damage screen pipe for horizontal well completion of shallow oil reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309038.6A CN105756626A (en) | 2016-05-11 | 2016-05-11 | Anti-damage screen pipe for horizontal well completion of shallow oil reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756626A true CN105756626A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610309038.6A Pending CN105756626A (en) | 2016-05-11 | 2016-05-11 | Anti-damage screen pipe for horizontal well completion of shallow oil reservoir |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193501A1 (en) * | 2016-05-11 | 2017-11-16 | 四川行之智汇知识产权运营有限公司 | Sand control screen pipe for horizontal well completion |
| US11898421B2 (en) * | 2022-04-27 | 2024-02-13 | Southwest Petroleum University | Sand control device for marine hydrate production |
-
2016
- 2016-05-11 CN CN201610309038.6A patent/CN105756626A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193501A1 (en) * | 2016-05-11 | 2017-11-16 | 四川行之智汇知识产权运营有限公司 | Sand control screen pipe for horizontal well completion |
| US11898421B2 (en) * | 2022-04-27 | 2024-02-13 | Southwest Petroleum University | Sand control device for marine hydrate production |
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Application publication date: 20160713 |