CN2758455Y - Expanding tool of expandable pipe for use in petroleum engineering - Google Patents
Expanding tool of expandable pipe for use in petroleum engineering Download PDFInfo
- Publication number
- CN2758455Y CN2758455Y CN 200420053900 CN200420053900U CN2758455Y CN 2758455 Y CN2758455 Y CN 2758455Y CN 200420053900 CN200420053900 CN 200420053900 CN 200420053900 U CN200420053900 U CN 200420053900U CN 2758455 Y CN2758455 Y CN 2758455Y
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- utility
- model
- expanding
- pipe
- expandable pipe
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Abstract
The utility model relates to the improvement of an expanding tool of an expandable pipe for petroleum engineering. The expanding tool of an expandable pipe is composed of an expandable pipe, an expanding awl, a center pipe, a hole and a pressure chamber. The utility model is characterized in that the expanding awl forms a cylindrical through hole structure, and the diameter of the upper section of the cylindrical through hole structure is smaller than the diameter of the lower section of the cylindrical through hole structure, the appearance surface of the expanding awl forms taper for matching the expandable pipe in a sealing mode, and the expanding awl is made of wear-resistant, corrosion resistant, and high-temperature resistant hard alloy with high hardness. The utility model has the advantages that a wellbore opened by the utility model is small; a well drilling period is short; drilling cost can be greatly reduced; oil well production and later period operation can be prompted. The utility model is applied and is important in many aspects of abnormal pressure layer system plugging, casing pipe patching, new completion tool development, etc.
Description
Technical field
The utility model is the improvement of a kind of petroleum works with the bloat tool of expandable tubular.
Technical background
In the on-the-spot drilling engineering along with deep understanding to mechanism such as oil gas generation, migrations, and the continuous progressive deep-well reservoir development of drilling technology is more and more, traditional well bore exists drive a well large period long and produce the very little practical problem of section well after the finishing drilling always, drilling cost height not only, and be unfavorable for producing and the later stage operation; If the stratum instability, borehole collapse, undergauge as saline bed and some loose sand oil reservoirs, just are difficult to continue to creep into; And oil gas well production string is owing to reasons such as corrosion perforation or leak, but the reliability of existing detonation technology, sealing, maximumly allows through-hole diameter and once can subsidize all defectiveness or restricted such as length.
Summary of the invention
Casing programme complexity in the on-the-spot drilling engineering, the drilling cost height.Permanent plastic deformation radially can take place in the body of expandable tubular, to reach the purpose of remarkable reduction drilling completion cost, optimization casing programme and raising oil drilling, completion and workover treatment level.The purpose of this utility model is to provide the bloat tool of a kind of petroleum works with expandable tubular to the scene.
The utility model is to realize like this.The bloat tool of expandable tubular is made up of expandable tubular, expansion cone, central tube, hole, pressure chamber.Expansion cone is the pillar through-hole structure, and outside stage casing is processed with tapering, and the top external diameter is less than the bottom external diameter, and expansion cone cooperates for being sealed and matched with expandable tubular.
Advantage of the present utility model is: tubing string is after the expanded radially of down-hole, its outer wall can be close to upper strata tubing string inwall, saved the annular space between the two-layer pipe, just be equivalent to save borehole diameter, eye is little, drilling period short, can reduce drilling cost significantly thereby one drives a well, and is beneficial to oil well production and later stage operation; For caving ground, borehole collapse, undergauge, and some loose sand oil reservoirs continue to creep into after can reinforcing well bore; Important application is all arranged at new completion tool of shutoff abnormal pressure series of strata, casing patching, exploitation etc. aspect many.
Description of drawings
The assembling schematic diagram of Fig. 1 expansion cone in expandable tubular
1. expandable tubular 2. expansion cone 3. central tubes 4. holes 5. pressure chambers
The specific embodiment
Referring to Fig. 1, after drilling well finishes, be lowered to expandable tubular 1, can determine the pressure size that builds the pressure according to the size of expandable tubular 1, generally to 10～20MPa, this pressure passes to space between central tube 3 and the expandable tubular 1 by the hole 4 of central tube 3 bottoms, form pressure chamber 5, when this pressure passes to the bottom of expansion cone 2, impel expansion cone 2 to move up, because the epimere diameter of expandable tubular 1 and expansion cone 2 is less than the hypomere diameter, and the cooperating for being sealed and matched of expansion cone 2 and expandable tubular 1, thereby make expandable tubular 1 expanded radially.After the construction of expanding was finished, the expandable tubular expansion rate can reach more than 13%, played and improved the cementing well quality, strengthened effects such as perforation penetrability.
Claims (1)
1. petroleum works are with the bloat tool of expandable tubular, it is made up of expandable tubular (1), expansion cone (2), central tube (3), hole (4), pressure chamber (5), it is characterized in that: expansion cone (2) is the pillar through-hole structure, outside stage casing is processed with tapering, the top external diameter is less than the bottom external diameter, and expansion cone (2) cooperates for being sealed and matched with expandable tubular (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053900 CN2758455Y (en) | 2004-09-24 | 2004-09-24 | Expanding tool of expandable pipe for use in petroleum engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053900 CN2758455Y (en) | 2004-09-24 | 2004-09-24 | Expanding tool of expandable pipe for use in petroleum engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2758455Y true CN2758455Y (en) | 2006-02-15 |
Family
ID=36078597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420053900 Expired - Fee Related CN2758455Y (en) | 2004-09-24 | 2004-09-24 | Expanding tool of expandable pipe for use in petroleum engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2758455Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422503C (en) * | 2006-10-31 | 2008-10-01 | 刘文西 | Expansion pipe combined well repairing device |
| CN101718179B (en) * | 2009-12-23 | 2012-10-17 | 中国石油天然气集团公司 | Safe setting method of expansion pipe |
| CN103590781A (en) * | 2006-04-13 | 2014-02-19 | 贝克休斯公司 | Packer sealing element with shape memory material |
| CN103620158A (en) * | 2011-06-28 | 2014-03-05 | 贝克休斯公司 | Permeable material compacting method and apparatus |
| CN101680282B (en) * | 2007-04-26 | 2014-10-15 | 韦尔泰克有限公司 | cladding method and expansion tool |
| CN104334821B (en) * | 2012-02-21 | 2017-10-27 | 欧文石油工具有限合伙公司 | Improve the sealed system and method for well tubular member |
-
2004
- 2004-09-24 CN CN 200420053900 patent/CN2758455Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590781A (en) * | 2006-04-13 | 2014-02-19 | 贝克休斯公司 | Packer sealing element with shape memory material |
| CN101460700B (en) * | 2006-04-13 | 2014-03-12 | 贝克休斯公司 | Packer sealing element with shape memory material |
| CN100422503C (en) * | 2006-10-31 | 2008-10-01 | 刘文西 | Expansion pipe combined well repairing device |
| CN101680282B (en) * | 2007-04-26 | 2014-10-15 | 韦尔泰克有限公司 | cladding method and expansion tool |
| CN101718179B (en) * | 2009-12-23 | 2012-10-17 | 中国石油天然气集团公司 | Safe setting method of expansion pipe |
| CN103620158A (en) * | 2011-06-28 | 2014-03-05 | 贝克休斯公司 | Permeable material compacting method and apparatus |
| CN103620158B (en) * | 2011-06-28 | 2017-03-01 | 贝克休斯公司 | Permeable material debulking methods and equipment |
| CN104334821B (en) * | 2012-02-21 | 2017-10-27 | 欧文石油工具有限合伙公司 | Improve the sealed system and method for well tubular member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |