CN203948044U - Note is adopted one special hollow sucker rod - Google Patents
Note is adopted one special hollow sucker rod Download PDFInfo
- Publication number
- CN203948044U CN203948044U CN201420411024.1U CN201420411024U CN203948044U CN 203948044 U CN203948044 U CN 203948044U CN 201420411024 U CN201420411024 U CN 201420411024U CN 203948044 U CN203948044 U CN 203948044U
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- China
- Prior art keywords
- baffle ring
- elevated
- external diameter
- hollow rod
- seal packing
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Abstract
The utility model belongs to sucker rod technical field, relate to specifically note and adopt one special hollow sucker rod, its technical characteristics is: comprise hollow rod body, at the two ends of described hollow rod body, be respectively arranged with plug and birdsmouth, described plug comprises cored screw, seal section and the baffle ring being inwardly arranged in order from end, radial outside at described seal section is provided with elevated-temperature seal packing, described baffle ring comprises little the first baffle ring and the second large baffle ring of external diameter of external diameter that is step-like arrangement, and the outer end of described elevated-temperature seal packing withstands on the first baffle ring; Described birdsmouth comprises running-on, threaded sleeve and the box cupling being inwardly arranged in order from end, and the internal diameter of described running-on is identical with the external diameter of described elevated-temperature seal packing, and the internal thread of described threaded sleeve mates with the external screw thread of described cored screw.Like this, before filling high-temperature steam, just directly hollow rod is inserted in oil well, the cable that only needs to heat proposes, after filling high-temperature steam, do not need hollow rod to take out and change, reduced operating cost, shorten the off-time, avoided thermal source waste.
Description
Technical field
The utility model belongs to hollow rod technical field, relates in particular to note and adopts one special hollow sucker rod.
Background technology
At some oil field content of wax, surpass 30%, containing colloidal bitumen, up to more than 40%, freezing point is up to more than 40%, and viscosity reaches thousands of centipoises, has increased exploitation difficulty, in order to reduce viscosity of crude, adopts the method for filling high-temperature steam.Because the resistance to elevated temperatures of hollow rod is poor, after the high-temperature steam of having annotated, hollow rod and the cable of heating need to be proposed at present, then common hollow rod be inserted in oil well.Like this, not only increased operating cost, extended the off-time again, also can cause scattering and disappearing of heat energy, energy loss is serious.
Utility model content
The technical problem of solution of the present utility model is adopted one special hollow sucker rod with regard to being to provide the note that a kind of operating cost is few, the off-time is short, heat energy loss is little, oil production is high.
The technical solution adopted in the utility model is: comprise hollow rod body, at the two ends of described hollow rod body, be respectively arranged with plug and birdsmouth, described plug comprises cored screw, seal section and the baffle ring being inwardly arranged in order from end, radial outside at described seal section is provided with elevated-temperature seal packing, described baffle ring comprises little the first baffle ring and the second large baffle ring of external diameter of external diameter that is step-like arrangement, and the outer end of described elevated-temperature seal packing withstands on the first baffle ring; Described birdsmouth comprises running-on, threaded sleeve and the box cupling being inwardly arranged in order from end, and the internal diameter of described running-on is identical with the external diameter of described elevated-temperature seal packing, and the internal thread of described threaded sleeve mates with the external screw thread of described cored screw.
Its additional technical feature is:
The radial outer side of described seal section is smaller round table-like of end diameter, round table-like identical with the radial outer side tapering of seal section of the inner radial wall face of described running-on.
Note provided by the utility model is adopted one special hollow sucker rod compared with prior art, have the following advantages: one, owing to comprising hollow rod body, at the two ends of described hollow rod body, be respectively arranged with plug and birdsmouth, described plug comprises cored screw, seal section and the baffle ring being inwardly arranged in order from end, radial outside at described seal section is provided with elevated-temperature seal packing, described baffle ring comprises little the first baffle ring and the second large baffle ring of external diameter of external diameter that is step-like arrangement, and the outer end of described elevated-temperature seal packing withstands on the first baffle ring, described birdsmouth comprises the running-on being inwardly arranged in order from end, threaded sleeve and box cupling, the internal diameter of described running-on is identical with the external diameter of described elevated-temperature seal packing, the internal thread of described threaded sleeve mates with the external screw thread of described cored screw, like this, when plug inserts after birdsmouth, cored screw and threaded sleeve are threaded connection, elevated-temperature seal packing end withstands on the first baffle ring, and the end of threaded sleeve withstands on the second baffle ring, avoided elevated-temperature seal packing torsional deformation, under high-temperature condition, still can reach sealing effectiveness, before filling high-temperature steam, just directly hollow rod is inserted in oil well, the cable that only needs to heat proposes, after filling high-temperature steam, do not need hollow rod to take out and change, reduced operating cost, shortened the off-time, avoided thermal source waste, its two, because the radial outer side of described seal section is smaller round table-like of end diameter, round table-like identical with the radial outer side tapering of seal section of the inner radial wall face of described running-on, sealing effectiveness is better.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model note is adopted one special hollow sucker rod;
Fig. 2 is that two notes are adopted the structural representation of one special hollow sucker rod junction.
The specific embodiment
Structure and the use principle of the utility model note being adopted to one special hollow sucker rod below in conjunction with accompanying drawing are described in further details.
As depicted in figs. 1 and 2, the utility model note is adopted one special hollow sucker rod, comprise hollow rod body 1, at the two ends of hollow rod body 1, be respectively arranged with plug 2 and birdsmouth 3, plug 2 comprises cored screw 21, seal section 22 and the baffle ring 23 being inwardly arranged in order from end, radial outside at seal section 22 is provided with elevated-temperature seal packing 4, baffle ring 23 comprises little the first baffle ring 231 and the second large baffle ring 232 of external diameter of external diameter that is step-like arrangement, and the outer end of elevated-temperature seal packing 4 withstands on the first baffle ring 231; Birdsmouth 3 comprises running-on 31, threaded sleeve 32 and the box cupling 33 being inwardly arranged in order from end, and the internal diameter of running-on 31 is identical with the external diameter of elevated-temperature seal packing 4, and the internal thread of threaded sleeve 32 mates with the external screw thread of cored screw 21.Like this, when plug 2 inserts after birdsmouth 3, cored screw 21 is threaded connection with threaded sleeve 32, the end of elevated-temperature seal packing 4 withstands on the first baffle ring 231, and the end of threaded sleeve 32 withstands on the second baffle ring 232, avoided elevated-temperature seal packing torsional deformation, under high-temperature condition, still can reach sealing effectiveness, before filling high-temperature steam, just directly hollow rod is inserted in oil well, the cable that only needs to heat proposes, after filling high-temperature steam, do not need hollow rod to take out and change, reduced operating cost, shortened the off-time, avoided thermal source waste.
The radial outer side of seal section 22 is smaller round table-like of end diameter, round table-like identical with the radial outer side tapering of seal section 22 of the inner radial wall face of running-on 31, and sealing effectiveness is better.
Protection domain of the present utility model is not only confined to above-described embodiment, as long as the structure that structure is adopted one special hollow sucker rod with the utility model note is identical, just drops on the scope of the utility model protection.
Claims (2)
1. note is adopted one special hollow sucker rod, comprises hollow rod body, at the two ends of described hollow rod body, is respectively arranged with plug and birdsmouth, it is characterized in that:
Described plug comprises cored screw, seal section and the baffle ring being inwardly arranged in order from end, radial outside at described seal section is provided with elevated-temperature seal packing, described baffle ring comprises little the first baffle ring and the second large baffle ring of external diameter of external diameter that is step-like arrangement, and the outer end of described elevated-temperature seal packing withstands on the first baffle ring;
Described birdsmouth comprises running-on, threaded sleeve and the box cupling being inwardly arranged in order from end, and the internal diameter of described running-on is identical with the external diameter of described elevated-temperature seal packing, and the internal thread of described threaded sleeve mates with the external screw thread of described cored screw.
2. note according to claim 1 is adopted one special hollow sucker rod, it is characterized in that: the radial outer side of described seal section is smaller round table-like of end diameter, round table-like identical with the radial outer side tapering of seal section of the inner radial wall face of described running-on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411024.1U CN203948044U (en) | 2014-07-24 | 2014-07-24 | Note is adopted one special hollow sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411024.1U CN203948044U (en) | 2014-07-24 | 2014-07-24 | Note is adopted one special hollow sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948044U true CN203948044U (en) | 2014-11-19 |
Family
ID=51890087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411024.1U Active CN203948044U (en) | 2014-07-24 | 2014-07-24 | Note is adopted one special hollow sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442909A (en) * | 2018-04-02 | 2018-08-24 | 王景桐 | Oil extraction system based on insulated tubing, the heat-insulated hollow rod of coating |
-
2014
- 2014-07-24 CN CN201420411024.1U patent/CN203948044U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442909A (en) * | 2018-04-02 | 2018-08-24 | 王景桐 | Oil extraction system based on insulated tubing, the heat-insulated hollow rod of coating |
| CN108442909B (en) * | 2018-04-02 | 2024-01-05 | 王景桐 | Oil extraction system based on heat-insulating oil pipe and coating heat-insulating hollow sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |