CN108397168B - Sand-proof screen pipe - Google Patents
Sand-proof screen pipe Download PDFInfo
- Publication number
- CN108397168B CN108397168B CN201810282476.7A CN201810282476A CN108397168B CN 108397168 B CN108397168 B CN 108397168B CN 201810282476 A CN201810282476 A CN 201810282476A CN 108397168 B CN108397168 B CN 108397168B
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- Prior art keywords
- pipe
- screen
- tube
- slotted
- sand control
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- 239000004576 sand Substances 0.000 claims abstract description 66
- 239000011148 porous material Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 230000002265 prevention Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 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)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a sand control screen, which comprises: a screen tube base tube; the outer slotted tube is sleeved outside the screen pipe base tube, and an annular cavity with two closed ends is formed between the outer slotted tube and the screen pipe base tube; wherein, the external slotted tube is provided with slotted groups along the axial direction at intervals; the screen pipe base pipe is provided with an opening at a position opposite to the slotting group of the external slotting pipe; and the guide wire is arranged in the annular cavity and spirally wound along the outer surface of the screen pipe base pipe according to a certain pitch. The sand control screen pipe provided by the invention can reduce the thickness of the slotted pipe body, and can increase the integral strength of the screen pipe, thereby having better sand control effect.
Description
Technical Field
The invention relates to the technical field of oil and gas exploitation, in particular to a sand control screen.
Background
For most oil and gas reservoirs of loose sandstone in oilfield reservoirs, the problem of serious sand production generally exists, and necessary sand prevention measures are required to be adopted in the production process. The screen sand control technology is used as a simple and effective sand control mode and is increasingly widely applied. The slotted screen pipe has the characteristics of simple manufacturing process, low cost and good sand prevention effect, so that the application amount of the slotted screen pipe in sand production areas of oil fields is huge.
However, existing slotted sand control screens have drawbacks for a variety of reasons in use. For example, the existing slotted screen pipe mainly has the problems of short service life, high deformation/damage rate, unsatisfactory sand prevention effect and the like in field application because of insufficient structural strength.
As shown in fig. 1 and 2, specifically, the slit processing of the conventional slit screen mainly includes laser cutting on the base pipe 10, and the laser slit 10 has defects of enlarged holes 11 at the slit end, poor surface finish of the slit, residual thermal stress at the slit end, and the like, which results in insufficient strength of the screen, easy damage and easy blockage, thereby affecting the sand control effect. In addition, the thickness of the gap of the existing slotted sand control screen pipe is equal to that of the base pipe 1, the thickness is generally more than 9mm (millimeters), the surface coefficient of the screen pipe is large, the flowing resistance of stratum produced liquid passing through the screen pipe is large, and the production of an oil well is not facilitated.
Accordingly, there is a need for a new sand control screen that overcomes at least one of the problems of the prior art.
Disclosure of Invention
The invention aims to provide a sand control screen pipe, which can overcome the defects of the prior art, reduce the thickness of a cut seam pipe body, increase the integral strength of the screen pipe and have better sand control effect.
The above object of the present invention can be achieved by the following technical solutions:
A sand control screen, comprising:
A screen tube base tube;
The outer slotted tube is sleeved outside the screen pipe base tube, and an annular cavity with two closed ends is formed between the outer slotted tube and the screen pipe base tube; wherein, the external slotted tube is provided with slotted groups along the axial direction at intervals; the screen pipe base pipe is provided with an opening at a position opposite to the slotting group of the external slotting pipe;
And the guide wire is arranged in the annular cavity and spirally wound along the outer surface of the screen pipe base pipe according to a certain pitch.
In a preferred embodiment, the openings in the screen base pipe are in the form of helical openings.
In a preferred embodiment, the openings have a pore size of 8mm to 12mm and a pore number of between 90 and 180 pores/m.
In a preferred embodiment, the wall thickness of the outer slotted tube is between 4 and 6 mm.
In a preferred embodiment, the slit of the outer slotted tube is cut by a saw blade.
In a preferred embodiment, the guide wire is a stainless steel wire, the cross section of which is circular, and the wire diameter of which is between 2 mm and 3.5 mm.
In a preferred embodiment, the pitch of the spiral winding of the guide wire is 1/3 to 1/2 of the length of the individual slits in the slit group.
In a preferred embodiment, the screen pipe base pipe further comprises an upper joint arranged at the upper end of the screen pipe base pipe, and a connecting part is arranged at the lower end of the screen pipe base pipe.
In a preferred embodiment, it further comprises: the two ends of the external slotted tube are fixed outside the sieve tube base tube through the upper fixing ring and the lower fixing ring, so that an annular cavity with two closed ends is formed.
In a preferred embodiment, two of the outer slotted tubes are spaced outwardly of the screen base pipe.
The application has the characteristics and advantages that: the embodiment of the application provides a sand control screen pipe, wherein a main body part consists of a screen pipe base pipe and an external slotted pipe, an annular cavity with two closed ends is formed between the two, and spiral winding guide wires are arranged in the annular cavity, so that the strength of the sand control screen pipe is integrally ensured, the damage deformation in the application process of the sand control screen pipe is reduced, and the service life of the sand control screen pipe is prolonged. Furthermore, the pipe wall of the external slotted pipe is thinner, a saw blade slotting mode can be adopted, the condition of stress concentration generated by laser slotting is avoided, the condition of different lengths inside and outside a slot generated by the saw blade slotting of a pipe with larger thickness is also avoided, and the sand prevention effect is improved; the guide wire is arranged between the sieve tube base tube and the external slotted tube, so that the defect of small overflow area caused by the fact that a gap of the external slotted tube directly contacts with a through hole of the sieve tube base tube is avoided, the overall strength is higher, the sand prevention effect is better, and the service life is longer.
Specific embodiments of the application are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the application are not limited in scope thereby. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
FIG. 1 is a schematic view of a conventional laser slotted sand control screen;
FIG. 2 is an enlarged partial schematic view of the prior art laser slotted sand control screen of FIG. 1 at I;
FIG. 3a is a schematic view of the length of the inner and outer wall slits when the saw blade slits a thicker wall thick tube;
FIG. 3b is a schematic view of the length of the inner and outer wall slits when the saw blade slits the thicker tube;
FIG. 4 is a schematic illustration of a sand control screen according to an embodiment of the present application;
FIG. 5 is a schematic illustration of a screen base pipe of a sand control screen in accordance with an embodiment of the present application;
FIG. 6 is a schematic illustration of the structure of an outer slotted tube of a sand control screen in accordance with an embodiment of the present application;
FIG. 7 is a schematic view of a flow guide wire of a sand control screen according to an embodiment of the present application;
FIG. 8 is a schematic illustration of the structure of an upper retaining ring of a sand control screen according to an embodiment of the present application;
FIG. 9 is a schematic illustration of a sand control screen according to an embodiment of the present application.
Reference numerals illustrate:
1-a base pipe, 10-slotting, 11-expanding holes and 8-saw blades; the device comprises a 12-upper joint, a 2-screen pipe base pipe, 20-open holes, 3-upper fixing rings, 30-slope surfaces, 4-outer slotted pipes, 40-slotted groups, 5-guide wires, 6-lower fixing rings and 7-welding parts.
Detailed Description
The technical solution of the present application will be described in detail below with reference to the accompanying drawings and the specific embodiments, it should be understood that these embodiments are only for illustrating the present application and not for limiting the scope of the present application, and various modifications of equivalent forms of the present application will fall within the scope of the appended claims after reading the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 3a and 3b, a conventional slotted sand control screen typically is directly slotted on base pipe 1 and is not suitable for slotting with saw blade 8. The specific reasons are as follows.
The slit of the existing sand control screen pipe is arranged on the base pipe 1. The thickness of the base pipe 1 is generally 9 mm or more. When the base pipe 1 is relatively thick, the lengths of the slits cut by the saw blade 8 on the inner wall and the outer wall of the pipe are greatly different (as shown in fig. 2), and the sand prevention effect is affected. If the base pipe 1 is thinned, the length of the gap between the inner wall and the outer wall of the pipe can be ensured to be slightly different, but the strength of the pipe body is lower, so that the service life of the sieve tube is reduced.
Therefore, the high-strength slotted screen pipe is necessary to provide, the saw blade 8 can be used for slotting, the defect generated by laser slotting is avoided, the thickness of the slotted pipe body is reduced, the integral strength of the screen pipe is increased, and the sand prevention effect is better.
Referring to fig. 4 to 8, a sand control screen provided in an embodiment of the present application may include: a screen base pipe 2; an outer slotted tube 4 sleeved outside the screen tube base tube 2, wherein an annular cavity with two closed ends is formed between the outer slotted tube 4 and the screen tube base tube 2; wherein, the outer slotted tube 4 is provided with slotted groups 40 at intervals along the axial direction; the screen pipe base pipe 2 is provided with an opening 20 at a position opposite to the slotting group 40 of the external slotting pipe 4; and the guide wires 5 are arranged in the annular cavity, and the guide wires 5 are spirally wound along the outer surface of the screen pipe base pipe 2 according to a certain pitch.
As shown in fig. 4, a novel sand control screen is provided in an embodiment of the present application that may include a screen base pipe 2, an outer slotted pipe 4, a guide wire 5, and the like.
As shown in fig. 5, the screen base pipe 2 may be generally hollow and tubular. For example, the screen base pipe 2 may select a casing having a predetermined thickness as the body. Taking the screen pipe base pipe 2 as an example, a sleeve pipe is selected as a body, an opening 20 is arranged on a position, opposite to the slotting group 40 of the external slotted pipe 4, of the sleeve pipe, and the opening 20 is communicated with the external slotted pipe 4 sleeved outside the opening 20.
Specifically, the openings 20 on the screen pipe base 2 may be in the form of spiral holes. Since the screen base pipe 2 is casing based, the openings 20 therein can be defined according to the diameter of the well casing perforations. Specifically, the aperture of the opening 20 is 8 mm to 12 mm, and the number of holes of the opening 20 is between 90 holes/m and 180 holes/m. When the openings 20 on the screen pipe base pipe 2 are arranged in the above manner, not only can the sufficient overflow of the formation produced fluid into the oil well be ensured, but also the necessary strength of the screen pipe under the well can be ensured, and the anti-extrusion performance of the screen pipe is improved.
Further, the sand control screen may further include an upper joint 12 provided at the upper end of the screen base pipe 2. The upper joint 12 may be threadably connected to the screen base pipe 2. The upper joint 12 may be provided with an internal thread, and the lower end of the screen base pipe 2 is provided with a connection portion. In particular, the connection may be an external thread. Generally, the overall length of a sand control pipe column formed by the sand control screen pipes is longer, and the sand control pipe column can be connected with a plurality of sand control screen pipes in a threaded connection mode, so that the sand control pipe column meeting the length requirement is formed.
As shown in fig. 6, in the present embodiment, the outer slotted tube 4 is sleeved outside the screen base tube 2, and an annular cavity with two closed ends is formed between the outer slotted tube 4 and the screen base tube 2. The two ends of the outer slotted tube 4 can be provided with fixing rings so as to realize the end gap between the outer slotted tube 4 and the screen pipe base tube 2.
Specifically, the outer slotted tube 4 can be a tubular product with the wall thickness of 4mm-6mm, when the thickness of the outer slotted tube 4 is 4mm-6mm, the gap thickness is reduced to 40% -60% compared with the conventional slotted screen pipe, so that the surface coefficient of the sand control screen pipe can be reduced, the flow resistance of stratum produced liquid passing through the screen pipe can be reduced, and the production of an oil well can be promoted. Meanwhile, when the thickness of the external slotted tube 4 is 4mm-6mm, the saw blade 8 is used for slotting, the outer length and the inner length of the slot are relatively close, the surface of the slot is smooth, the produced liquid can flow into a shaft, and the risk of sand blocking in the slot is reduced.
The outer slit tube 4 is provided with slit groups 40 at intervals along the axial direction. The slits in each slit group 40 of the outer slit pipe 4 can be slit uniformly by the saw blade 8. Because the wall thickness of the pipe is thinner, the length difference between the upper surface and the lower surface of the slit cut by the saw blade 8 is not large, and the problem that in the prior art, the slit is unsuitable for being cut by the saw blade because the thickness of the slit pipe is too thick can not occur. The gap width is determined according to the median value of the stratum sand sizes of the required sand control blocks, and the application is not particularly limited herein.
As shown in fig. 7, the guide wires 5 are disposed within an annular cavity formed between the screen base pipe 2 and the outer slotted pipe 4. The guide wire 5 is spirally wound along the outer surface of the screen base pipe 2 according to a certain pitch. The guide wires 5 can support the external slotted tube 4 on one hand and prevent the external slotted tube 4 from being extruded and deformed by external force in the stratum; on the other hand, the diversion wires 5 play a role in diversion of produced fluid in the stratum into the screen pipe base pipe 2. Specifically, referring to fig. 7 in combination, the produced fluid enters the outer slotted tube 4 from the stratum, and a larger gap is formed between the screen pipe base tube 2 and the outer slotted tube 4 by arranging the guide wire 5, so that the defect of small overflow area caused by the fact that the gap of the outer slotted tube 4 directly contacts the opening 20 of the screen pipe base tube 2 is avoided.
The guide wire 5 may be helically wound around the outside of the screen base pipe 2 along one end of the outer slotted tube 4 to the other end of the outer slotted tube 4. Specifically, the guide wire 5 may be a stainless steel wire with a circular cross section, and its wire diameter is preferably between 2mm and 3.5 mm. If the diameter of the guide wire 5 is too large and is more than 3.5 mm, the outer diameter of the sieve tube is increased, and the tubular column is difficult to run in the well; if the diameter of the guide wire 5 is too small, the produced fluid is difficult to flow into the sand control screen after the diameter is smaller than 2 mm.
Further, the spiral winding pitch of the guide wire 5 is 1/3 to 1/2 of the length of the individual slits in the slit group 40. When the thread pitch of the guide wire 5 is 1/3 to 1/2 of the slotting length, the guide wire not only can play an ideal supporting and guiding role, but also can avoid the problem of smaller overflow area caused by the fact that the external slotted tube 4 is tightly attached to the screen pipe base tube 2.
In one embodiment, the sand control screen may further comprise: the two ends of the outer slotted tube 4 are fixed outside the screen tube base tube 2 through the upper fixing ring 3 and the lower fixing ring 6 to form an annular cavity with two closed ends.
Specifically, the fixing rings and the screen base pipe 2, and the fixing rings and the outer slotted pipe 4 can be fixed by welding. As shown in fig. 8, the upper fixing ring 3 or the lower fixing ring 6 may be a stepped ring as a whole, wherein the lower step thickness is the gap width between the screen base pipe 2 and the outer slotted pipe 4, and the upper step thickness is the thickness of the outer slotted pipe 4. Correspondingly, the two ends of the outer slotted tube 4 can be provided with slope surfaces 30 for welding the fixing rings.
After the upper fixing ring 3 and the lower fixing ring 6 are arranged at the two ends of the outer slotted tube 4, the guide wire 5 is spirally wound to one end of the lower fixing ring 6 along the outer surface of the screen pipe base tube 2 from one end of the upper fixing ring 3 according to a certain pitch. The welded parts 7 are formed between the respective fixing rings and the screen base pipe 2 and between the fixing rings and the outer slotted pipe 4 by welding. Through the mode of fixing the fixed ring and welding and fixing, the screen pipe base pipe 2 and the external slotted pipe 4 can form an integral sand control screen pipe, and the connection position is reliable and firm.
The sand control screen provided by the application has the advantages that the main body part consists of the screen base pipe 2 and the external slotted pipe 4, the annular cavity with two closed ends is formed between the screen base pipe and the external slotted pipe, and the spiral winding guide wires 5 are arranged in the annular cavity, so that the strength of the sand control screen is greatly improved, the damage deformation in the application process of the sand control screen is reduced, and the service life of the screen is prolonged.
Referring to fig. 9, in one embodiment, two outer slotted tubes 4 are spaced outwardly from the screen base pipe 2.
The two outer slotted tubes 4 are arranged on the single screen pipe laser, so that the length of each outer slotted tube 4 can be shortened, the strength of the outer slotted tube 4 is improved, and deformation of the outer slotted tube 4 due to factors such as ground stress and the like in the underground oil gas production process is avoided. Typically, the length of a single screen base pipe 2 is around 11 meters and the length of the outer slotted pipe 4 may be between 4 meters and 6 meters.
The sand control screen main body part provided by the application is composed of the screen base pipe 2 and the external slotted pipe 4, and an annular cavity with two closed ends is formed between the screen base pipe and the external slotted pipe, and the spiral winding guide wires 5 are arranged in the annular cavity, so that the strength of the sand control screen is integrally ensured, the damage deformation in the application process of the sand control screen is reduced, and the service life of the sand control screen is prolonged. Furthermore, the pipe wall of the external slotted pipe 4 is thinner, a saw blade slotting mode can be adopted, the condition of stress concentration generated by laser slotting is avoided, the condition of different lengths inside and outside a slot generated by the saw blade slotting of a pipe with larger thickness is also avoided, and the sand prevention effect is improved; the guide wire 5 is arranged between the screen pipe base pipe 2 and the external slotted pipe 4, so that the defect of small overflow area caused by the fact that a gap of the external slotted pipe 4 is directly contacted with a through hole of the screen pipe base pipe 2 is avoided, the overall strength is higher, the sand prevention effect is better, and the service life is longer.
Any numerical value recited herein includes all values of the lower and upper values that increment by one unit from the lower value to the upper value, as long as there is a spacing of at least two units between any lower value and any higher value. For example, if it is stated that the number of components or the value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then the purpose is to explicitly list such values as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. in this specification as well. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be explicitly recited in this description, and all possible combinations of values recited between the lowest value and the highest value are believed to be explicitly stated in the description in a similar manner.
Unless otherwise indicated, all ranges include endpoints and all numbers between endpoints. "about" or "approximately" as used with a range is applicable to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30," including at least the indicated endpoints.
All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional.
Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.
The foregoing embodiments in the present specification are all described in a progressive manner, and the same and similar parts of the embodiments are mutually referred to, and each embodiment is mainly described in a different manner from other embodiments.
The foregoing description of the embodiments of the present invention is merely illustrative, and the present invention is not limited to the embodiments described above. Any person skilled in the art can make any modification and variation in form and detail of the embodiments without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.
Claims (6)
1. A sand control screen, comprising:
A screen tube base tube;
The outer slotted tube is sleeved outside the screen pipe base tube, and an annular cavity with two closed ends is formed between the outer slotted tube and the screen pipe base tube; wherein, the external slotted tube is provided with slotted groups along the axial direction at intervals; the screen pipe base pipe is provided with an opening at a position opposite to the slotting group of the external slotting pipe; the open hole is communicated with an external slotted tube sleeved outside the open hole; the hole distribution form of the holes on the screen pipe base pipe is spiral; the wall thickness of the outer slotted tube is between 4 and 6 millimeters; the gap of the external slotted tube is cut by a saw blade;
the guide wire is arranged in the annular cavity, the guide wire is spirally wound along the outer surface of the screen pipe base pipe according to a certain screw pitch, the guide wire can play a supporting role on the outer slotted pipe, and the screw pitch of the spiral winding of the guide wire is 1/3 to 1/2 of the length of a single slot in the slotted group.
2. The sand control screen as recited in claim 1 wherein the apertures have a pore size of 8 mm to 12 mm and the apertures have a pore number of between 90 and 180 pores/m.
3. The sand control screen as recited in claim 1 wherein the guide wire is a stainless steel wire having a circular cross section and a wire diameter between 2 millimeters and 3.5 millimeters.
4. The sand control screen as recited in claim 1 further comprising an upper joint disposed at an upper end of the screen base pipe, a lower end of the screen base pipe being provided with a connection.
5. The sand control screen as recited in claim 1 further comprising: the two ends of the external slotted tube are fixed outside the sieve tube base tube through the upper fixing ring and the lower fixing ring, so that an annular cavity with two closed ends is formed.
6. The sand control screen as recited in claim 1 wherein two of the outer slotted tubes are spaced outwardly of the screen base pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282476.7A CN108397168B (en) | 2018-04-02 | 2018-04-02 | Sand-proof screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282476.7A CN108397168B (en) | 2018-04-02 | 2018-04-02 | Sand-proof screen pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397168A CN108397168A (en) | 2018-08-14 |
| CN108397168B true CN108397168B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282476.7A Active CN108397168B (en) | 2018-04-02 | 2018-04-02 | Sand-proof screen pipe |
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| Country | Link |
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| CN (1) | CN108397168B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929179Y (en) * | 2006-06-23 | 2007-08-01 | 大港油田集团有限责任公司 | Combined anti-sand sieve tube |
| CN208220746U (en) * | 2018-04-02 | 2018-12-11 | 中国石油天然气股份有限公司 | Sand control screen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100122810A1 (en) * | 2008-11-19 | 2010-05-20 | Langlais Michael D | Well screens and method of making well screens |
| US20100258302A1 (en) * | 2009-04-08 | 2010-10-14 | Halliburton Energy Services, Inc. | Well Screen With Drainage Assembly |
| US8567498B2 (en) * | 2010-01-22 | 2013-10-29 | Schlumberger Technology Corporation | System and method for filtering sand in a wellbore |
-
2018
- 2018-04-02 CN CN201810282476.7A patent/CN108397168B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929179Y (en) * | 2006-06-23 | 2007-08-01 | 大港油田集团有限责任公司 | Combined anti-sand sieve tube |
| CN208220746U (en) * | 2018-04-02 | 2018-12-11 | 中国石油天然气股份有限公司 | Sand control screen |
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| Publication number | Publication date |
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| CN108397168A (en) | 2018-08-14 |
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