CN202866761U - Strong-releasing type leakage-preventing well washing oil production device - Google Patents
Strong-releasing type leakage-preventing well washing oil production device Download PDFInfo
- Publication number
- CN202866761U CN202866761U CN 201220442863 CN201220442863U CN202866761U CN 202866761 U CN202866761 U CN 202866761U CN 201220442863 CN201220442863 CN 201220442863 CN 201220442863 U CN201220442863 U CN 201220442863U CN 202866761 U CN202866761 U CN 202866761U
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- oil
- well washing
- pump barrel
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Abstract
The utility model relates to the field of petroleum exploitation technology, in particular to a strong-releasing type leakage-preventing well washing oil production device which is used for preventing washing fluid from leaking into strata at the time of well washing of a rod pumped well. A rotary gear of the oil production device is arranged between an upper connector and a seal pressing cap, and the seal pressing cap, a well washing pup joint, a packer seal assembly, a tubing coupling, an outer barrel body, a crossover coupling, a bottom valve valve assembly and a tubing X-over are connected in sequence from top to bottom. The inner wall of the lower end of the upper connector is connected with a pulling pipe, and the pulling pipe, a limit connector and a pump cylinder are connected in sequence. A double-valve plunger assembly is arranged in the pump cylinder, and the pump cylinder is arranged in the well washing pup joint and the packer seal assembly. The lower end of the pump cylinder is connected with an oil drainage assembly, and an oil drainage pin is arranged in the oil drainage assembly. The oil drainage assembly, a pump fixed valve assembly, a collision preventing pup joint and a grabbing cylinder are connected in sequence from top to bottom. The strong-releasing type leakage-preventing well washing oil production device can not only achieve normal production of an oil well, but also prevent the well washing leakage from polluting the strata, and is simple and convenient to operate.
Description
Technical field:
The utility model relates to a kind of technical field of petroleum extraction, particularly a kind ofly prevents the formula of letting out the by force lost circulation prevention well washing oil extraction device that flushing fluid bleeds the stratum during for the rod-pumped well well-flushing.
Background technology:
Well-flushing is one of the most frequently used wax removal viscosity reduction measure of oil well, and paraffin-troubled well can improve temperature in wellbore, and melt gradually paraffin, thereby make the circulation passage of crude oil in tubing string smooth and easy by hot-washing wax remover, improves oil well productivity.Some sand output wells, heavy oil wells in process of production, sand card oil well pump and emulsification of crude oil can occur and cause oil well not go out oil condition, also need to carry out well-flushing, and sand, oil emulsion are washed out pit shaft, make oil flow channel unobstructed.But for stratum energy heavier well in debt, in washing well process, have a large amount of flushing fluids stratum of bleeding, the clay in the stratum expands with the flushing fluid effect, thereby stops up oil flow channel, causes oil well output decline.
The utility model content:
The technical problems to be solved in the utility model provides a kind of formula lost circulation prevention well washing oil extraction device of letting out by force, and this device has realized realizing that oil well normally produces, and can prevent that again the well-flushing leakage from polluting the stratum, and is easy and simple to handle.Overcome existing stratum energy heavier well flushing fluid in washing well process in debt stratum of bleeding and polluted, stopped up the deficiency of oil flow channel.
Technical solution adopted in the utility model is: a kind of formula lost circulation prevention well washing oil extraction device of letting out by force comprises top connection, outer cylinder body and oil pipe variable buckle; Swing pinion is installed between top connection and the seal pressure cap, seal pressure cap, the well-flushing short circuit, the packer sealing assembly, tubing coupling, outer cylinder body, crossover sub, bottom valve valve assembly, the oil pipe variable buckle connects from top to bottom in turn, top connection lower end inwall with lift pipe and be connected, lift pipe, positioning joint, pump barrel connects in turn, two valve assembly for plunger are installed in the pump barrel, pump barrel places in well-flushing short circuit and the packer sealing assembly, the pump barrel lower end connects the draining assembly, it is inner that the draining pin is installed in the draining assembly, the draining assembly, pump standing valve assembly, the anti-collision short circuit, grabbing cylinder connects from top to bottom in turn, buffer spring is installed in grabs in the cylinder, and supporting positive cover is installed between pump barrel and the outer cylinder body.
The beneficial effects of the utility model are: the utility model has been owing to adopted the mode of oil extraction pump and packer combination, thereby has and can realize that oil well normally produces, and can prevent that again the well-flushing leakage from polluting the function on stratum, and is simple in structure, easy to operate; Owing to adopted the structure that the draining pin is installed in draining assembly inside, thereby had the effect that crude oil in oil pipe can be leaked into fully the stratum, can avoid emitting the spray operation, can prevent again the deblocking power of large load.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of formula lost circulation prevention well washing oil extraction device of letting out by force comprises top connection 1, outer cylinder body 11 and oil pipe variable buckle 21; Swing pinion 2 is installed between top connection 1 and the seal pressure cap 3, seal pressure cap 3, well-flushing short circuit 7, packer sealing assembly 9, tubing coupling 10, outer cylinder body 11, crossover sub 16, bottom valve valve assembly 20, oil pipe variable buckle 21 connects from top to bottom in turn, top connection 1 lower end inwall with lift pipe and 4 be connected, lift pipe 4, positioning joint 5, pump barrel 8 connects in turn, two valve assembly for plunger 6 are installed in the pump barrel 8, pump barrel 8 places in well-flushing short circuit 7 and the packer sealing assembly 9, pump barrel 8 lower ends connect draining assembly 13, draining pin 14 is installed in draining assembly 13 inside, draining assembly 13, pump standing valve assembly 15, anti-collision short circuit 17, grabbing cylinder 19 connects from top to bottom in turn, buffer spring 18 is installed in grabs in the cylinder 19, and supporting positive cover 12 is installed between pump barrel 8 and the outer cylinder body 11.
Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (1)
1. let out by force formula lost circulation prevention well washing oil extraction device for one kind, comprise top connection (1), outer cylinder body (11) and oil pipe variable buckle (21); It is characterized in that: swing pinion (2) is installed between top connection (1) and the seal pressure cap (3), seal pressure cap (3), well-flushing short circuit (7), packer sealing assembly (9), tubing coupling (10), outer cylinder body (11), crossover sub (16), bottom valve valve assembly (20), oil pipe variable buckle (21) connects from top to bottom in turn, top connection (1) lower end inwall with lift pipe (4) and be connected, lift pipe (4), positioning joint (5), pump barrel (8) connects in turn, two valve assembly for plunger (6) are installed in the pump barrel (8), pump barrel (8) places in well-flushing short circuit (7) and the packer sealing assembly (9), pump barrel (8) lower end connects draining assembly (13), draining pin (14) is installed in draining assembly (13) inside, draining assembly (13), pump standing valve assembly (15), anti-collision short circuit (17), grabbing cylinder (19) connects from top to bottom in turn, buffer spring (18) is installed in grabs in the cylinder (19), and supporting positive cover (12) is installed between pump barrel (8) and the outer cylinder body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442863 CN202866761U (en) | 2012-09-03 | 2012-09-03 | Strong-releasing type leakage-preventing well washing oil production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442863 CN202866761U (en) | 2012-09-03 | 2012-09-03 | Strong-releasing type leakage-preventing well washing oil production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866761U true CN202866761U (en) | 2013-04-10 |
Family
ID=48033487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442863 Expired - Fee Related CN202866761U (en) | 2012-09-03 | 2012-09-03 | Strong-releasing type leakage-preventing well washing oil production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983337A (en) * | 2019-12-02 | 2021-06-18 | 中国石油天然气股份有限公司 | Packer for plugging and plugging method |
-
2012
- 2012-09-03 CN CN 201220442863 patent/CN202866761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983337A (en) * | 2019-12-02 | 2021-06-18 | 中国石油天然气股份有限公司 | Packer for plugging and plugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150903 |
|
| EXPY | Termination of patent right or utility model |