CN2898288Y - Sieve tube without coupling - Google Patents
Sieve tube without coupling Download PDFInfo
- Publication number
- CN2898288Y CN2898288Y CN 200520132543 CN200520132543U CN2898288Y CN 2898288 Y CN2898288 Y CN 2898288Y CN 200520132543 CN200520132543 CN 200520132543 CN 200520132543 U CN200520132543 U CN 200520132543U CN 2898288 Y CN2898288 Y CN 2898288Y
- Authority
- CN
- China
- Prior art keywords
- big
- stainless steel
- filter
- screen pipe
- screen casing
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 title abstract 3
- 238000010168 coupling process Methods 0.000 title abstract 3
- 238000005859 coupling reaction Methods 0.000 title abstract 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000003129 oil well Substances 0.000 abstract description 8
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 210000000664 rectum Anatomy 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000914 Metallic fiber Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Images
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- Filtering Materials (AREA)
Abstract
The screen pipe without coupling, it comprises top connection 1, screen pipe body 2, filter unit 3, lower clutch 4, filter mantle 5, stainless steel fiber silk 6, the utility model discloses owing to adopted top connection and screen pipe body, lower clutch to connect gradually, evenly distributed has filter unit on the screen pipe body, filter unit comprises filter mantle lower package stainless steel fiber silk, stainless steel metal fiber filter layer thickness is big, the distribution is even, the area of flow is big, the permeability is high, keep off sand and the ability reinforce of straining sand, flow resistance is little, normal production does not have the influence to the oil well, it is big to have the latus rectum, intensity is high, flexibility is good, simple structure, the area of flow is big, also be favorable to the sand control construction operation of horizontal well, side drilling and bore hole well. The novel non-coupling sieve tube has the advantages of novel design, simple and compact structure, reliable performance and convenient processing. Is very suitable for being popularized and applied on site.
Description
Technical field:
The utility model relates to a kind of downhole tool that is used for using on the oilfield, does not particularly have the box cupling screen casing.
Background technology:
Since the geologic structure of particular oils gas reservoir, the tomography anormogenesis, and the oil product type is many, many cover oil-gas Layer are also deposited, that oil reservoir buries is shallow, especially the oil field enters the exploitation middle and late, the oil well condition complexity, shakes out in producing seriously, causes stratum, oil reservoir near wellbore zone in debt big; Particularly each layer of sand production in oil well position development time, strata pressure, production capacity, permeability have nothing in common with each other, add along with the many rounds of viscous crude are annotated, the excavating technology The Application of Technology, increase with the round of handling up, cause sleeve pipe radial stresses generation significant change, cause most of oil well casing distortion, bad break, damage.Because conventional sand control flow string decreases in the sand output well at cover and uses, screen casing is rountrip (casing deformation, bad break) normally, and block overhaul construction well increases gradually, has seriously restricted the ordinary production of oil well.The various screen casings that adopt are in casing damaged well at present, and filter element easily comes off, and the later stage operation can't normally be salvaged, and causes heavy repair task easily, and the short problem of period of validity.
Technical scheme
The utility model purpose is to provide no box cupling screen casing, both reinforced sleeve pipe, guarantee again in casing deformation well, to remove smoothly, and pollution-free to the stratum, be difficult for again stopping up, the production period of validity is longer, improved the sand control production effect, reduce the operation number of times, thereby reduced cost of crude oil production, increased benefit.Reduce operating cost.
The purpose of this utility model is to realize like this, it is made up of top connection (1), screen casing body (2) filter element (3), lower contact (4), filter mantle (5), stainless steel fiber (6), top connection (1) is connected successively with screen casing body (2), lower contact (4), be evenly distributed with filter element (3) on screen casing body (2), bag stainless steel fiber (6), baffle plate with holes (7) constitute filter element (3) down by filter mantle (5).
Because this screen casing adopts high strength linepipe, cloth hole on this basis, adopt in the filter element stainless steel metal fibre filtration beds thickness big, be evenly distributed, area of passage is big, permeability is high, sand block and filter sand ability are strong, flow resistance is little, and the oil well ordinary production is not had influence.The method that filter element adopts inside and outside weldering to reinforce is fixed on the parent tube, filter element and body are to form through high temperature, high-pressure sinter, metallic fiber is to select for use the strong stainless steel of resistance to corrosion to do raw material, thereby sand control screen has the ability (can use for a long time) of high temperature resistance, the corrosion of antiacid, alkaline media in PH2～11 media.Can satisfy the technical requirements of long-term continuous steam injection, not hinder oil well to carry out measures such as acidifying, alkali cleaning again.
The utility model is connected with screen casing body, lower contact successively owing to having adopted in top connection, on the screen casing body, be evenly distributed with filter element, filter element wraps stainless steel fiber down by filter mantle and constitutes, stainless steel metal fibre filtration beds thickness is big, be evenly distributed, area of passage is big, permeability is high, sand block and filter sand ability are strong, flow resistance is little, the oil well ordinary production there is not influence, have that latus rectum is big, intensity is high, flexibility is good, simple in structure, circulation area is big, also help the sand control construction operation of horizontal well, sidetracked hole and open hole well.Be the workover treatment of sand control later stage, reducing overhaul provides condition, this novel no box cupling screen casing, and modern design, simple in structure, compactness, dependable performance, easy to process.Be well suited for field popularization application.
Description of drawings
Fig. 1 is a structural representation of the present utility model.Fig. 2 is the sectional drawing of filter element.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment:
Embodiment:
As shown in the figure: it is made up of top connection 1, screen casing body 2, filter element 3, lower contact 4, filter mantle 5, stainless steel fiber 6, top connection 1 is connected successively with screen casing body 2, lower contact 4, be evenly distributed with filter element 3 on screen casing body 2, filter element 3 is made of 5 times bags of filter mantle stainless steel fiber 6.The hole of processing method for the seamless steel pipe of certain specification and material is processed into certain rule, size as parent tube, in the hole, insert the filter element body, the filter element body comprises filtering material, adopt the peviform metal filtration outer cover of special material, be placed with upper and lower two wire gauzes in the outer cover, filtering material is arranged in the middle of two wire gauzes, the common filter element body that constitutes of a baffle plate with holes is arranged below, the outer rim of filter mantle and screen casing body adopt inside and outside weldering reinforcement means to be fixed on the parent tube, make filter element body and firm the linking together of screen casing body.Metallic fiber is to select for use the strong stainless steel of resistance to corrosion to do raw material.The utility model does not have the box cupling screen casing, the hole of its processing method for the seamless steel pipe of certain specification and material is processed into certain rule, size as parent tube, in the hole, insert stainless steel metal wire, adopt the metal filtration outer cover of special material, the common filter element body that constitutes of baffle plate with holes, the outer rim of filter mantle and screen casing body adopt inside and outside weldering reinforcement means to be fixed thereon, and make filter element body and firm the linking together of screen casing body.The box cupling external diameter is consistent with this body diameter and adopt and to be threaded---become this novel no box cupling screen casing.But filtering material powder metallurgy, wire lath, pottery or stainless steel metal wire.
Claims (2)
1, no box cupling screen casing, it is made up of top connection (1), screen casing body (2), filter element (3), lower contact (4), filter mantle (5), stainless steel fiber (6), it is characterized in that: top connection (1) is connected successively with screen casing body (2), lower contact (4), be evenly distributed with filter element (3) on screen casing body (2), bag stainless steel fiber (6), baffle plate with holes (7) constitute filter element (3) down by filter mantle (5).
2, no box cupling screen casing according to claim 1 is characterized in that: filter mantle (5) is a peviform metal filtration outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132543 CN2898288Y (en) | 2005-11-11 | 2005-11-11 | Sieve tube without coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132543 CN2898288Y (en) | 2005-11-11 | 2005-11-11 | Sieve tube without coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898288Y true CN2898288Y (en) | 2007-05-09 |
Family
ID=38073624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520132543 Expired - Lifetime CN2898288Y (en) | 2005-11-11 | 2005-11-11 | Sieve tube without coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898288Y (en) |
-
2005
- 2005-11-11 CN CN 200520132543 patent/CN2898288Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |