CN202064911U - High-strength steam injection screen pipe - Google Patents
High-strength steam injection screen pipe Download PDFInfo
- Publication number
- CN202064911U CN202064911U CN2011201727104U CN201120172710U CN202064911U CN 202064911 U CN202064911 U CN 202064911U CN 2011201727104 U CN2011201727104 U CN 2011201727104U CN 201120172710 U CN201120172710 U CN 201120172710U CN 202064911 U CN202064911 U CN 202064911U
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- steam injection
- layer
- spiral
- high strength
- thermal recovery
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Abstract
A high-strength steam injection screen pipe comprises a collar, a centralizer, a base pipe, a welding ring, a fine filtering layer, a spiral filtering layer and a coarse filtering layer. The collar and the centralizer are installed at one end of the base pipe in connection mode and pipe threads are arranged at the other end of the base pipe. The fine filtering layer, the spiral filtering layer and the coarse filtering layer are sequentially arranged on the base pipe from inside to outside, and two end portions of the fine filtering layer, two end portions of the spiral filtering layer and two end portions of the coarse filtering layer are fixed together with the base pipe in sealing mode through the welding ring. The high-strength steam injection screen pipe has the advantages of being high in strength and filtering accuracy, erosion-resistant in the filtering layers, strong in washing resistance and adaptability, advanced in design and technology, and reasonable in structure, having certain self-cleaning capability and the like. The high-strength steam injection screen pipe is widely used in oil exploitation wells and especially suitable for use in horizontal well steam injection huff-puff technology.
Description
One, technical field
The utility model relates to oil field development well gravel pack sandscreen, particularly a kind of high strength steam injection thermal recovery screen casing.
Two, background technology
Traditional sand control sand screen is made of central tube and filtration beds.The sand screen of this structure is that the exploitation exploitation of heavy crude petroleum layer contributes, and exist following shortcoming or deficiency through the process application of handling up at heavy crude petroleum oil reservoir injection vapour: 1. its filtration beds is a flexible structure, and compressive strength is low.Because of parent tube reduces by 8% through more former sleeve pipe intensity after processing boring; 2. because structure is a single layer filter, so obstruction, with short production cycle easily; 3. corrosion-resistant, erosion resistibility is low, the oil production technology of the periodicity steam soak that oil well is implemented in process of production easily washes out screen casing; 4. the parent tube of sand screen is taked quincunx cloth hole, and intensity reduces big after processing.
Three, summary of the invention
The purpose of this utility model provides a kind of high strength steam injection thermal recovery screen casing, adopts the structure that secondary filter layer, spiral filtration beds and coarse filtration layer are installed on the parent tube, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
High strength steam injection thermal recovery screen casing described in the utility model comprises box cupling, centralizer, parent tube, weld-ring, secondary filter layer, spiral filtration beds, coarse filtration layer.One end of described parent tube is connected and installed with box cupling and centralizer, and the other end is provided with connecting thread.Secondary filter layer, spiral filtration beds and coarse filtration layer from inside to outside are installed on the parent tube in turn, are in the same place by weld-ring and parent tube sealing and fixing in the both ends of secondary filter layer, spiral filtration beds and coarse filtration layer.
Wherein, described secondary filter layer, spiral filtration beds and coarse filtration layer two ends and parent tube are welded by the weld-ring sealing and fixing.Described weld-ring is the taper sleeve type fixing structure that contracts, and the end of weld-ring is installed and is connected with tapered sleeve, welds together with parent tube.Secondary filter layer, spiral filtration beds and coarse filtration layer are installed on the described parent tube are evenly equipped with the spiral flowing hole.Described secondary filter layer is installed inner protective layer, water conservancy diversion net, screen pack, water conservancy diversion net and screen pack for arranging from inside to outside.Described centralizer is the drum type sped structure, is evenly equipped with multi-head spiral groove on its cylindrical.The inner protective layer of described secondary filter layer be provided with water conservancy diversion to inner process.Big outer little trapezoidal shape structure in the slit of described spiral filtration beds is.Described coarse filtration layer 7 surface are provided with the rectangular bridge type effluent groove that evenly gathers.
The utility model has following advantage and beneficial effect compared with prior art:
1, the spiral filtration beds adopts stainless steel trapezoidal wire welded construction, has the high and anti-extrusion performance of intensity, and more traditional sand screen intensity improves 25%.
2, filtration beds adopts classified filtering, reservoir sand can be around screen casing after by classified filtering and each minute inter-stage be formed with the filling bed of effect, thereby improve strainability, improve filtering accuracy;
3, filtration beds is selected austenite heat-resistance stainless steel steel plate and steel wire for use, production, processing technology through the advanced person are made, improve corrosion-resistant, erosion resistibility effectively, the period of validity of the periodicity steam oil production technology that oil well is implemented, the sand screen more traditional through test prolongs more than 3 times;
4, select high-quality P110H sleeve pipe for use, its flowing hole spiral is interspersed, and has not only satisfied the overcurrent needs but also can guarantee the intensity of parent tube;
5, the surface of coarse filtration layer is provided with rectangular bridge type hole, and pass is rectangular trapezoidal latasuture, has avoided the dash damage of overcurrent liquid to the secondary filter layer, and has had certain self-cleaning ability;
6, merged the advantage of wrapping wire sand screen and net formula sand screen, the gravel that had both had the wrapping wire sand screen dashes fills out performance, has the performance of the direct sand block of net formula sand screen again;
7, compliance is strong, can satisfy the various completion production practice of straight well, inclined shaft, the horizontal well requirement of ligh-oil reservoir and heavy crude reservoir, and oil-sand is effectively separated, and is suitable for the horizontal well steam injection thermal recovery technology of various completions especially;
8, advanced design, rational in infrastructure, technology is advanced, through the experiment various performance technologies indexs all be better than traditional sand screen.
Four, description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model;
Fig. 2 is for pressing A place structural representation shown in Figure 1;
Fig. 3 is for pressing B place structural representation shown in Figure 1;
Five, the specific embodiment
Consult Fig. 1-Fig. 3, a kind of high strength steam injection thermal recovery screen casing comprises box cupling 1, centralizer 2, parent tube 3, weld-ring 4, secondary filter layer 5, spiral filtration beds 6, coarse filtration layer 7.One end of parent tube 3 is connected and installed with box cupling 1 and centralizer 2, and the other end is provided with connecting thread, to satisfy different-thickness oil reservoir length requirement.Secondary filter layer 5, spiral filtration beds 6 and coarse filtration layer 7 from inside to outside are installed on the parent tube 3 in turn.Be in the same place by weld-ring 4 and parent tube 3 sealing and fixing in the both ends of secondary filter layer 5, spiral filtration beds 6 and coarse filtration layer 7.
Secondary filter layer 5, spiral filtration beds 6 and coarse filtration layer 7 two ends and the welding of weld-ring 4 sealing and fixing.Weld-ring 4 is the taper sleeve type fixing structure that contracts, and the end of weld-ring 4 is equipped with tapered sleeve 8, is fixed and welded together with parent tube 3.Secondary filter layer 5 is to arrange inner protective layer 9, water conservancy diversion net 10, screen pack 11, the second water conservancy diversion net 10 and second screen pack of installing 11 from inside to outside.Centralizer 2 is the drum type sped structure, is evenly equipped with multi-head spiral groove on its cylindrical.The inner protective layer of secondary filter layer 5 be provided with water conservancy diversion to inner process.Big outer little trapezoidal shape structure had self-cleaning ability in the slit of spiral filtration beds 6 was.Coarse filtration layer 7 surface are provided with the rectangular bridge type effluent groove that evenly gathers.
Claims (9)
1. high strength steam injection thermal recovery screen casing, comprise box cupling, centralizer, parent tube, weld-ring, secondary filter layer, spiral filtration beds, coarse filtration layer, an end that it is characterized in that described parent tube is connected and installed with box cupling and centralizer, the other end is provided with connecting thread, secondary filter layer, spiral filtration beds and coarse filtration layer from inside to outside are installed on the parent tube in turn, are in the same place by weld-ring and parent tube sealing and fixing in the both ends of secondary filter layer, spiral filtration beds and coarse filtration layer.
2. high strength steam injection thermal recovery screen casing according to claim 1 is characterized in that described secondary filter layer, spiral filtration beds and coarse filtration layer two ends are by weld-ring and the welding of parent tube sealing and fixing.
3. high strength steam injection thermal recovery screen casing according to claim 2 is characterized in that described weld-ring is the taper sleeve type fixing structure that contracts, and the end of weld-ring is installed and is connected with tapered sleeve, welds together with parent tube.
4. high strength steam injection thermal recovery screen casing according to claim 1 and 2 is characterized in that the position that secondary filter layer, spiral filtration beds and coarse filtration layer are installed on the described parent tube is evenly equipped with the spiral flowing hole.
5. high strength steam injection thermal recovery screen casing according to claim 1 and 2 is characterized in that described secondary filter layer is for arranging inner protective layer, water conservancy diversion net, screen pack, water conservancy diversion net and the screen pack of installing from inside to outside.
6. high strength steam injection thermal recovery screen casing according to claim 1 is characterized in that described centralizer is the drum type sped structure, is evenly equipped with multi-head spiral groove on its cylindrical.
7. high strength steam injection thermal recovery screen casing according to claim 1 and 2, the inner protective layer that it is characterized in that described secondary filter layer (5) be provided with water conservancy diversion to inner process.
8. high strength steam injection thermal recovery screen casing according to claim 1 and 2 is characterized in that the slit of described spiral filtration beds is interior big outer little trapezoidal shape structure.
9. high strength steam injection thermal recovery screen casing according to claim 1 and 2 is characterized in that described coarse filtration layer (7) surface is provided with the rectangular bridge type effluent groove that evenly gathers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201727104U CN202064911U (en) | 2011-05-16 | 2011-05-16 | High-strength steam injection screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201727104U CN202064911U (en) | 2011-05-16 | 2011-05-16 | High-strength steam injection screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064911U true CN202064911U (en) | 2011-12-07 |
Family
ID=45058779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201727104U Expired - Fee Related CN202064911U (en) | 2011-05-16 | 2011-05-16 | High-strength steam injection screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296944A (en) * | 2011-05-16 | 2011-12-28 | 东营市丰泰石化机械配件有限责任公司 | High-strength steam-injection thermal extraction sieve tube |
| CN112761592A (en) * | 2021-01-26 | 2021-05-07 | 思达斯易能源技术(集团)有限公司 | Bypass screen pipe |
-
2011
- 2011-05-16 CN CN2011201727104U patent/CN202064911U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296944A (en) * | 2011-05-16 | 2011-12-28 | 东营市丰泰石化机械配件有限责任公司 | High-strength steam-injection thermal extraction sieve tube |
| CN112761592A (en) * | 2021-01-26 | 2021-05-07 | 思达斯易能源技术(集团)有限公司 | Bypass screen pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20130516 |