CN202659218U - Oil lubrication oil-pumping device - Google Patents
Oil lubrication oil-pumping device Download PDFInfo
- Publication number
- CN202659218U CN202659218U CN 201220299365 CN201220299365U CN202659218U CN 202659218 U CN202659218 U CN 202659218U CN 201220299365 CN201220299365 CN 201220299365 CN 201220299365 U CN201220299365 U CN 201220299365U CN 202659218 U CN202659218 U CN 202659218U
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- oil
- lubrication
- pumping
- hollow rod
- hollow
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Abstract
An oil lubrication oil-pumping device comprises lubrication oil, a hollow pumping rod, an oil tube, a communicated connector, a plunger and a pump cylinder. The oil lubrication oil-pumping device is characterized in that the hollow pumping rod, the communicated connector and the plunger are connected in sequence. The lower portion of the oil tube is connected with the pump cylinder. The hollow pumping rod is arranged in the oil tube. The plunger is arranged in the pump cylinder. The lubrication oil is injected into an annular space between the hollow pumping rod and the oil tube. Working medium between the hollow pumping rod and the oil tube is the lubrication oil which has a lubricating function, has no corrosiveness, and improves the lubrication condition between the hollow pumping rod and the oil tube in the process of pumping oil. Consequently, abrasions between the pumping rod and the oil tube are greatly reduced, so the abrasions between the pumping rod and the oil tube are not a reason which causes a production cycle of a pumping well to be short any longer. Moreover, the problem of corrosion of the hollow pumping rod and the oil tube is solved. Therefore, the oil lubrication oil-pumping device can greatly prolong the production cycle of the pumping well and reduce production cost.
Description
Technical field
The utility model is the oil rig that oil field machinery oil is used, particularly a kind of wearing and tearing and corrosion-resistant oil lubrication oil rig of alleviating.
Technical background
In sucker-rod pumping system, no matter be straight well or inclined shaft, sucker rod all is relative motion in contacting with oil pipe, have inevitably sucker rod, oil pipe wear problem, along with the continuous exploitation in oil field, well water rises, the lubricating condition variation, the corrosivity aggravation, sucker rod, oil pipe wearing and tearing etching problem are on the rise, and have become the principal element that shortens the oil well production cycle.Prevent that at present sucker rod, oil pipe wearing and tearing from having following several method: the one, at sucker rod oil pumping rod centering device to be installed, but to be seen that from a large amount of actual conditions the application life of oil pumping rod centering device is short, sucker rod, oil pipe wear problem can not effectively solve; The 2nd, at well head oil pipe rotating device is installed, make the whole circumference of tube inner wall all participate in wearing and tearing by rotation pipeline, prolong oil pipe and be worn down to the out of use time, still there is wear problem in this method, so solution that neither be desirable; The 3rd, adopt without the oil pipe oil pumping, although there is not the problem of the oil pipe that weares and teares in this oil pumping mode, there is the problem of wearing and tearing sucker rod and sleeve pipe.Method from above several solution sucker rods, oil pipe wear problem although obtained certain effect, does not tackle the problem at its root, even also has fatal weakness, scraps as causing oil well behind the casing wear.Therefore, sucker rod, oil pipe wear problem are still serious.
Summary of the invention
The purpose of this utility model provide a kind of can prolong the pumpingh well production cycle alleviate wearing and tearing and corrosion-resistant oil lubrication oil rig.
The technical scheme that the utility model adopts is: substitute solid sucker rod with hollow rod, hollow rod connects the transferring power effect except plaing, its endoporus is also as fluid course, between hollow rod and oil pipe, fill with lubrication oil, the bottom of hollow rod is communicated with annular space between oil pipe and the hollow rod by being communicated with joint, make the liquid of extraction can enter hollow rod, also can enter the annular space between oil pipe and the hollow rod.Its course of work is: during down stroke, well liquid is discharged in the annular space between hollow rod and the pump barrel.During upstroke, the annular space between hollow rod and the pump barrel diminishes, and pressure raises, and is drawn out of ground after the connection joint of well liquid by the hollow rod bottom drains in the hollow rod.
Because the working media between sucker rod and oil pipe is lubrication oil, has lubrication, and non-corrosiveness, lubricating condition when having improved oil pumping between hollow rod and the oil pipe, sucker rod, oil pipe wear problem alleviate greatly, and eliminated the etching problem of hollow rod and oil pipe, so adopt the utility model oil lubrication oil rig can greatly prolong the production cycle of pumpingh well, reduced production costs.
Description of drawings
Fig. 1 is structure principle chart figure of the present utility model.
Fig. 2 is the structure sectional view of the connection joint of the utility model the first embodiment.
Fig. 3 is the structure sectional view of the connection joint of the utility model the second embodiment.
Among the figure: 1, lubrication oil, 2, oil pipe, 3, hollow rod, 4, be communicated with joint, 5, plunger, 6, pump barrel.
The specific embodiment
Below in conjunction with accompanying drawing the utility model the first embodiment is described further.
The first embodiment of the present utility model is comprised of lubrication oil (1), hollow rod (3), oil pipe (2), connection joint (4), plunger (5), pump barrel (6).Hollow rod (3) is connected successively with connection joint (4) and plunger (5), and its connected mode is screw thread.Oil pipe (2) bottom connects pump barrel (6), and pump barrel (6) bottom can union tail and other instrument such as packer.Hollow rod (3) is in the oil pipe (2), and plunger (5) is in the pump barrel (6).Connection joint (4) upper and lower end among Fig. 2 has screw thread, be connected with hollow rod (3), plunger (5) respectively, there is the hole that is not communicated with the lower end upper end, and around the hole connectivity slot (hole), the effect of connectivity slot (hole) being arranged is that the liquid of extraction is entered in the hollow rod.After being installed in this utility model in the well, must be first with lubrication oil (in 1 annular space that is injected between hollow rod (3) and the oil pipe (2).During oil pumping, the liquid that oil well pump is discharged enters in the hollow rod (3) through being communicated with joint (4), thereby the liquid in the pumpingh well is extracted out.Because the fluid density of extracting out in the density ratio well of lubrication oil (1) is little, therefore lubrication oil (1) occupies in the annular space between hollow rod (3) and oil pipe (2) all the time, thereby the lubrication of playing, reach the appearance that prevents hollow rod (3) and oil pipe (2) wear problem, because of the lubrication oil non-corrosiveness, so the utility model has also prevented the corrosion of hollow rod (3), oil pipe (2).
Below in conjunction with accompanying drawing the utility model the second embodiment is described further.
The second embodiment of the present utility model is comprised of lubrication oil (1), hollow rod (3), oil pipe (2), connection joint (4), plunger (5), pump barrel (6).Hollow rod (3) is connected successively with connection joint (4) and plunger (5), and its connected mode is screw thread.Oil pipe (2) bottom connects pump barrel (6), and pump barrel (6) bottom can union tail and other instrument such as packer.Hollow rod (3) is in the oil pipe (2), and plunger (5) is in the pump barrel (6).Connection joint (4) upper and lower end among Fig. 3 has screw thread, through hole is arranged in it, connectivity slot (hole) is arranged all around, the upper and lower end screw thread is connected with hollow rod (3), plunger (5) respectively, the effect of through hole is that the liquid of extraction is entered in the hollow rod (3), and the effect of connectivity slot (hole) is that the liquid of extraction is entered in the annular space between hollow rod (3) and the oil pipe.
After being installed in this utility model in the well, must first lubrication oil (1) be injected in the annular space between hollow rod (3) and the oil pipe (2).During oil pumping, the liquid that oil well pump is discharged enters in the hollow rod (3) through being communicated with joint (4), thereby the liquid in the pumpingh well is extracted out.Because the fluid density of extracting out in the density ratio well of lubrication oil (1) is little, therefore lubrication oil (1) occupies in the annular space between hollow rod (3) and oil pipe (2) all the time, thereby the lubrication of playing, reach the appearance that prevents hollow rod (3) and oil pipe (2) wear problem, because of the lubrication oil non-corrosiveness, so the utility model has also prevented the corrosion of hollow rod (3), oil pipe (2).
Claims (2)
1. oil lubrication oil rig, formed by lubrication oil (1), hollow rod (3), oil pipe (2), connection joint (4), plunger (5), pump barrel (6), it is characterized in that: hollow rod (3), be communicated with joint (4), plunger (5) connects successively, lubrication oil (1) is injected in the annular space between hollow rod (3) and the oil pipe (2).
2. oil lubrication oil rig according to claim 1, it is characterized in that: being communicated with joint (4) upper and lower end has screw thread, there is the hole that is communicated with hollow rod (3) upper end, and the passage that hollow rod (3) is communicated with lubrication oil (1) is arranged around the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299365 CN202659218U (en) | 2012-06-26 | 2012-06-26 | Oil lubrication oil-pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299365 CN202659218U (en) | 2012-06-26 | 2012-06-26 | Oil lubrication oil-pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659218U true CN202659218U (en) | 2013-01-09 |
Family
ID=47454128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299365 Expired - Fee Related CN202659218U (en) | 2012-06-26 | 2012-06-26 | Oil lubrication oil-pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221526A (en) * | 2015-11-04 | 2016-01-06 | 山东钢铁股份有限公司 | A kind of hydraulic system oiling oil pick-up tube, oil strain dolly |
| CN105863573A (en) * | 2016-05-30 | 2016-08-17 | 中国石油天然气股份有限公司 | Self-lubricating anti-wax and anti-scale type oil production string |
-
2012
- 2012-06-26 CN CN 201220299365 patent/CN202659218U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221526A (en) * | 2015-11-04 | 2016-01-06 | 山东钢铁股份有限公司 | A kind of hydraulic system oiling oil pick-up tube, oil strain dolly |
| CN105221526B (en) * | 2015-11-04 | 2017-04-05 | 山东钢铁股份有限公司 | A kind of hydraulic system oiling oil pick-up tube, oil strain dolly |
| CN105863573A (en) * | 2016-05-30 | 2016-08-17 | 中国石油天然气股份有限公司 | Self-lubricating anti-wax and anti-scale type oil production string |
| CN105863573B (en) * | 2016-05-30 | 2018-07-13 | 中国石油天然气股份有限公司 | A kind of self-lubricating paraffin antiscale flow string |
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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: 20130109 Termination date: 20130626 |