CN205714694U - A kind of thickened oil recovery rod-type pumping unit - Google Patents
A kind of thickened oil recovery rod-type pumping unit Download PDFInfo
- Publication number
- CN205714694U CN205714694U CN201620369312.4U CN201620369312U CN205714694U CN 205714694 U CN205714694 U CN 205714694U CN 201620369312 U CN201620369312 U CN 201620369312U CN 205714694 U CN205714694 U CN 205714694U
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- valve
- assembly
- oil
- rod
- outer pipe
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Abstract
The utility model discloses a kind of thickened oil recovery rod-type pumping unit, including outer pipe assembly and the oil rig assembly being placed in outer pipe assembly, described outer pipe assembly includes that upper limit supports seat, outer tube, intervalve and lower contact, described oil rig assembly includes valve rod assembly, top mechanism locking device, assembly for plunger, standing valve assembly and screen casing, the intervalve end of described outer pipe assembly is connected with bottom valve assembly, and this bottom valve assembly includes connecting sleeve pipe, being placed in the bottom valve and valve ball spring spindle device connected in sleeve pipe；Described lower contact connects with the described end thread being connected sleeve pipe；The bottom of described screen casing is connected with the centre bore that may pass through described delivery connection and described valve ball is lifted off the push rod of valve seat.Application this utility model heat extraction by steam injection oil need not be remarkably improved oil exploitation efficiency through open flow process.
Description
Technical field
This utility model relates to a kind of rod-type pumping unit, concretely relates to a kind of thickened oil recovery rod-type pumping unit.
Background technology
China's viscous crude resource distribution is very wide, and rich reserves, wherein land viscous crude accounts for the 20% of petroleum resources.Thickened oil recovery at present mainly has the modes such as oil recovery by heating, chemical recovery and biological method oil recovery.Steam injection oil recovery by heating is the major way of thickened oil recovery, and the process of heat extraction by steam injection mainly has steam injection, stewing well, open flow and opens and take out several stage.For most wells, after steam injection, borehole pressure remains high, during stewing well, pressure is high and diffusion is poor, cause when open flow outside in well, crude oil is by well head injection to well, on the one hand waste petroleum resources, pollute environment, the petroleum injection additionally during open flow with elevated pressures will also result in potential safety hazard outside well, above-mentioned harm is produced during in order to avoid open flow, it is presently mainly to use and extends the stewing well time, make borehole pressure slowly be down to below safe pressure and carry out open flow, exploitation again, but so can significantly postpone the recovery time of oil, cause production efficiency degradation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of thickened oil recovery rod-type pumping unit, during application this utility model heat extraction by steam injection oil, can directly need not pump operation in stewing well a period of time through open flow process, and oil exploitation efficiency is high.
For solving above-mentioned technical problem, thickened oil recovery rod-type pumping unit of the present utility model, including outer pipe assembly and the oil rig assembly being placed in outer pipe assembly, described outer pipe assembly includes that upper limit supports seat, outer tube, intervalve and lower contact, upper limit supports between seat and outer tube threaded by top connection, threaded by transition joint between outer tube and intervalve；Described oil rig assembly includes valve rod assembly, top mechanism locking device, assembly for plunger, standing valve assembly and screen casing, valve rod assembly has valve rod, valve rod is arranged with stem guiding set near valve stem connection position, outer end, the intervalve end of described outer pipe assembly is connected with bottom valve assembly, and this bottom valve assembly includes connecting sleeve pipe, being placed in the bottom valve and valve ball spring spindle device connected in sleeve pipe；Described bottom valve includes valve body connector, the valve seat being positioned at valve body connector inwall and valve ball, the two ends of valve body connector respectively be connected sleeve pipe and described intervalve is threaded, valve body connector is connected with the delivery connection with centre bore towards the side of intervalve, opposite side is connected with oil-feed valve bonnet, and described valve ball is positioned at oil-feed valve bonnet；Described valve ball spring spindle device include one end pass described oil-feed valve bonnet can by the core bar on described valve ball top to seating position, be set in that core bar is outside and the core bar fairlead threaded with described oil-feed valve bonnet and the righting-oriented set that is connected with core bar fairlead end thread, it is arranged with back-moving spring on described core bar, one end of back-moving spring is fixed on core bar, and the other end is connected with described righting-oriented set；Described lower contact connects with the described end thread being connected sleeve pipe；The bottom of described screen casing is connected with the centre bore that may pass through described delivery connection and described valve ball is lifted off the push rod of valve seat.
Use the thickened oil recovery rod-type pumping unit of said structure, when needs heat extraction by steam injection, first described oil rig assembly is proposed in described outer pipe assembly, core bar in the most described bottom valve assembly cuts out described valve ball top to valve seat, bottom valve by back-moving spring sheathed on core bar and oil reservoir differential pressure action；During steam injection, when the steam pressure in oil pipe reaches certain value, the power on valve ball that acts on overcomes the active force of back-moving spring and oil reservoir pressure reduction to promote valve ball, bottom valve is opened, steam injects shaft bottom oil reservoir, and after having noted steam, bottom valve is again switched off under back-moving spring and oil reservoir differential pressure action.After stewing well a period of time, can directly described oil rig assembly be entered in outer pipe assembly under oil pipe, when oil rig assembly is close to outer pipe assembly, close well mouth of oil well seal box, when oil rig assembly enters in outer pipe assembly down, the push rod being connected with bottom described screen casing is lifted off valve seat through the centre bore of described delivery connection described valve ball, now this utility model can carry out oil extraction operation, this utility model extraction oil need not be remarkably improved oil exploitation efficiency through open flow process；During oil extraction, steam is extracted out through oil pipe with oil, will not be sprayed onto outside well, thus not result in the waste of environmental pollution and crude oil.
As improvement of the present utility model, the inwall being positioned at described upper limit support seat top is provided with annular slot, the end of described stem guiding set is provided with top limit spring set, and when entering in outer pipe assembly under described oil rig is the most integral, top limit spring set can snap onto on annular slot.After using above-mentioned technical characteristic, when oil rig assembly is lowered in outer pipe assembly through oil pipe, the top limit spring set of the most described stem guiding set end can snap onto in described annular slot, the most aboveground operator close well mouth of oil well seal box, can effectively prevent from causing oil by the potential safety hazard caused outside down-hole high pressure vapor action ejection well because oil rig enters outer pipe assembly down, being conducted oneself with dignity by sucker rod after closing well head seal box again and applying corresponding external force to sucker rod makes oil rig be fully contemplated in outer pipe assembly.
As further improvement of the utility model, the bottom of described standing valve assembly is connected with the seal sleeve matched with described transition joint, and the barrel of seal sleeve is interval with sealing cup, and described screen casing is connected with the end of seal sleeve.After using above-mentioned technical characteristic, the sealing reliability between the oil rig assembly in this utility model and outer pipe assembly can be improved further.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Fig. 1 is the sectional structure schematic diagram of this utility model a kind of thickened oil recovery rod-type pumping unit.
Fig. 2-1 is the Part I structure enlarged diagram along Fig. 1 after A-A thread breakage.
Fig. 2-2 is the Part II structure enlarged diagram that A-A line and line B-B are formed after rupturing along Fig. 1.
Fig. 2-3 is the Part III structure enlarged diagram formed after line B-B and C-C thread breakage along Fig. 1.
Fig. 2-4 is the Part IV structure enlarged diagram formed after C-C thread breakage along Fig. 1.
Fig. 3 is structure enlarged diagram at I in Fig. 1.
Fig. 4 is structure enlarged diagram at II in Fig. 1.
Detailed description of the invention
See Fig. 1-Fig. 4, this utility model one thickened oil recovery rod-type pumping unit, including outer pipe assembly and the oil rig assembly being placed in outer pipe assembly, described outer pipe assembly includes that upper limit supports seat 10, outer tube 11, intervalve 12 and lower contact 13, upper limit supports between seat 10 and outer tube 11 threaded by top connection 14, threaded by transition joint 15 between outer tube 11 and intervalve 12；Described oil rig assembly includes valve rod assembly 20, top mechanism locking device 21, assembly for plunger 22, standing valve assembly 23 and screen casing 24, valve rod assembly 20 has valve rod 201, valve rod 201 is arranged with stem guiding set 203 near outer end valve stem connection 202 position, intervalve 12 end of described outer pipe assembly is connected with bottom valve assembly, and this bottom valve assembly includes connecting sleeve pipe 30, being placed in the bottom valve 31 and valve ball spring spindle device 32 connected in sleeve pipe 30；Described bottom valve 31 includes valve body connector 310, the valve seat 311 being positioned at valve body connector 310 inwall and valve ball 312, the two ends of valve body connector 310 respectively be connected sleeve pipe 30 and described intervalve 12 is threaded, valve body connector 310 is connected with the delivery connection 314 with centre bore 313 towards the side of intervalve 12, opposite side is connected with oil-feed valve bonnet 315, and described valve ball 312 is positioned at oil-feed valve bonnet 315；Described valve ball spring spindle device 32 includes that one end passes described oil-feed valve bonnet 315 and described valve ball 312 can push up the core bar 321 to valve seat 311 position, be set in core bar 321 outside and the core bar fairlead 322 threaded with described oil-feed valve bonnet 315 and the righting-oriented set 323 being connected with core bar fairlead 322 end thread, it is arranged with back-moving spring 324 on described core bar 321, one end of back-moving spring 324 is fixed on core bar 321, and the other end is connected with described righting-oriented set 323；Described lower contact 13 connects with the described end thread being connected sleeve pipe 30；The bottom of described screen casing 24 is connected with and may pass through the described valve ball 312 of centre bore 313 of described delivery connection 314 and be lifted off the push rod 241 of valve seat 311.The inwall being positioned at described upper limit support seat 10 top is provided with annular slot 9, the end of described stem guiding set 203 is provided with top limit spring set 8, when entering in outer pipe assembly under described oil rig is the most integral, top limit spring set 8 can snap onto on annular slot 9.The bottom of described standing valve assembly 23 is connected with the seal sleeve 7 matched with described transition joint 15, and the barrel of seal sleeve 7 is interval with sealing cup 6, and described screen casing 24 is connected with the end of seal sleeve 7.
Claims (3)
1. a thickened oil recovery rod-type pumping unit, including outer pipe assembly and the oil rig assembly being placed in outer pipe assembly, described outer pipe assembly includes that upper limit supports seat (10), outer tube (11), intervalve (12) and lower contact (13), upper limit supports between seat (10) and outer tube (11) threaded by top connection (14), threaded by transition joint (15) between outer tube (11) and intervalve (12)；Described oil rig assembly includes valve rod assembly (20), top mechanism locking device (21), assembly for plunger (22), standing valve assembly (23) and screen casing (24), valve rod assembly (20) has valve rod (201), valve rod (201) is arranged with stem guiding set (203) near valve stem connection (202) position, outer end, it is characterized in that: intervalve (12) end of described outer pipe assembly is connected with bottom valve assembly, this bottom valve assembly includes connecting sleeve pipe (30), being placed in the bottom valve (31) and valve ball spring spindle device (32) connected in sleeve pipe (30)；Described bottom valve (31) includes valve body connector (310), the valve seat (311) being positioned at valve body connector (310) inwall and valve ball (312), the two ends of valve body connector (310) respectively be connected sleeve pipe (30) and described intervalve (12) is threaded, valve body connector (310) is connected with the delivery connection (314) with centre bore (313) towards the side of intervalve (12), opposite side is connected with oil-feed valve bonnet (315), and described valve ball (312) is positioned at oil-feed valve bonnet (315)；Described valve ball spring spindle device (32) includes that one end passes described oil-feed valve bonnet (315) and described valve ball (312) can be pushed up the core bar (321) to valve seat (311) position, it is set in core bar (321) outside and the core bar fairlead (322) threaded with described oil-feed valve bonnet (315) and the righting-oriented set (323) being connected with core bar fairlead (322) end thread, back-moving spring (324) it is arranged with on described core bar (321), one end of back-moving spring (324) is fixed on core bar (321), the other end is connected with described righting-oriented set (323)；Described lower contact (13) connects with the described end thread being connected sleeve pipe (30)；The bottom of described screen casing (24) is connected with the centre bore (313) that may pass through described delivery connection (314) and described valve ball (312) is lifted off the push rod (241) of valve seat (311).
2. thickened oil recovery rod-type pumping unit as claimed in claim 1, it is characterized in that: the inwall being positioned at described upper limit support seat (10) top is provided with annular slot (9), the end of described stem guiding set (203) is provided with top limit spring set (8), when entering in outer pipe assembly under described oil rig is the most integral, top limit spring set (8) can snap onto on annular slot (9).
3. thickened oil recovery rod-type pumping unit as claimed in claim 1 or 2, it is characterized in that: the bottom of described standing valve assembly (23) is connected with the seal sleeve (7) matched with described transition joint (15), being interval with sealing cup (6) on the barrel of seal sleeve (7), described screen casing (24) is connected with the end of seal sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620369312.4U CN205714694U (en) | 2016-04-28 | 2016-04-28 | A kind of thickened oil recovery rod-type pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620369312.4U CN205714694U (en) | 2016-04-28 | 2016-04-28 | A kind of thickened oil recovery rod-type pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714694U true CN205714694U (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620369312.4U Withdrawn - After Issue CN205714694U (en) | 2016-04-28 | 2016-04-28 | A kind of thickened oil recovery rod-type pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781950A (en) * | 2016-04-28 | 2016-07-20 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
-
2016
- 2016-04-28 CN CN201620369312.4U patent/CN205714694U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781950A (en) * | 2016-04-28 | 2016-07-20 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
| CN105781950B (en) * | 2016-04-28 | 2017-05-03 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20170503 |
|
| AV01 | Patent right actively abandoned |