CN212454383U - Automatic controller for layered oil production - Google Patents
Automatic controller for layered oil production Download PDFInfo
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- CN212454383U CN212454383U CN202021230012.0U CN202021230012U CN212454383U CN 212454383 U CN212454383 U CN 212454383U CN 202021230012 U CN202021230012 U CN 202021230012U CN 212454383 U CN212454383 U CN 212454383U
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Abstract
The utility model belongs to the technical field of oil field production equipment, in particular to a layered oil extraction automatic controller, which comprises an oil pipe coupling, a first rubber cylinder, an upper tray, a lower tray, a spring seat, an adjusting ring, a central pipe, a positioning screw, a second rubber cylinder and a sand liquid control ring; the oil pipe coupling is in threaded connection with the central pipe, the sand liquid control ring is sleeved on the central pipe at the end part of the oil pipe coupling, the first rubber sleeve is sleeved on the sand liquid control ring and the central pipe, the upper tray is sleeved on the first rubber sleeve and the central pipe, the second rubber sleeve is sleeved on the upper tray and the central pipe, the lower tray is sleeved on the second rubber sleeve and the central pipe, the spring is sleeved on the central pipe at the end part of the lower tray, the central pipe at the end part of the spring is sleeved with the spring seat, the spring seat is limited through the adjusting ring in threaded connection with the central pipe, and the adjusting ring is fastened through the positioning screw. The controller can realize layered oil extraction and layered water shutoff, and the pipe column cannot be blocked when sand is produced from the stratum. Simple structure, reasonable in design, safe and reliable, low cost.
Description
The technical field is as follows:
the utility model belongs to the technical field of oilfield equipment, concretely relates to layering oil recovery automatic control.
Background art:
in the middle and later stages of oilfield flooding development, due to difference of water absorption effects among layers, individual layers of an oil well have high water breakthrough and continuously increase of water content, so that the flowing speed of other oil layers is pressed and hindered. In order to solve the problem, various water plugging methods are adopted in the oil field, so that the cost is high, and the pipe column is blocked due to formation sand production and the like. Thus, this is achieved. It is necessary to design a safe and reliable automatic controller for stratified oil production.
The utility model has the following contents:
the invention aims to provide a safe and reliable automatic controller for layered oil extraction, which can realize layered oil extraction and layered water shutoff and prevent a pipe column from being blocked during formation sand production. Simple structure, reasonable design, safety, reliability, low cost, economy, applicability and easy popularization and use on a large scale.
The technical scheme adopted by the novel method is as follows: a layered oil production automatic controller comprises an oil pipe coupling, a first rubber cylinder, an upper tray, a lower tray, a spring seat, an adjusting ring, a central pipe, a positioning screw, a second rubber cylinder and a sand liquid control ring; the oil pipe coupling is connected with the central pipe through threads, the sand liquid control ring is sleeved on the central pipe at the end part of the oil pipe coupling, the first rubber sleeve is sleeved on the sand liquid control ring and the central pipe, the upper tray is sleeved on the first rubber sleeve and the central pipe, the second rubber sleeve is sleeved on the upper tray and the central pipe, the lower tray is sleeved on the second rubber sleeve and the central pipe, the spring is sleeved on the central pipe at the end part of the lower tray, the central pipe at the end part of the spring is sleeved with the spring seat, the spring seat is limited through the adjusting ring in threaded connection with the central pipe, and the adjusting ring is fastened through the positioning screw.
Further, both ends of the central tube are provided with threads.
Furthermore, one end of the upper tray is provided with a taper hole.
Further, the inner hole at one end of the lower tray is conical.
Further, the bottom of the adjusting ring is provided with a screw hole.
Furthermore, the outer parts of the first rubber cylinder and the second rubber cylinder are provided with conical sections.
This neotype beneficial effect: the automatic controller for the layered oil extraction is safe and reliable, can realize the layered oil extraction and the layered water shutoff, and can not block a pipe column during the sand production of the stratum. Simple structure, reasonable design, safety, reliability, low cost, economy, applicability and easy popularization and use on a large scale. Its main advantage does:
1) the liquid outlet of any high water-bearing stratum in the well can be automatically controlled;
2) the oil production layer can automatically accelerate the liquid outlet speed;
3) if negative pressure occurs in the oil production layer, liquid can be automatically supplemented;
4) the phenomenon that the pipe column is clamped by sand (no sand setting space) can not occur;
5) the plugging effect is good, and the plugging time is long (because the wear-resistant double rubber cylinders are adopted, when the first rubber cylinder fails, the second rubber cylinder starts to start);
6) and the controller can be repeatedly used after the rubber cylinder is replaced.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a schematic structural view of a center tube in the first embodiment;
FIG. 3 is a schematic structural view of a lower tray according to a first embodiment;
FIG. 4 is a schematic structural diagram of an upper tray in the first embodiment;
FIG. 5 is a schematic view of an adjusting ring according to an embodiment;
FIG. 6 is a schematic structural diagram of a spring seat in the first embodiment;
FIG. 7 is a schematic structural diagram of a sand control ring according to an embodiment.
The specific implementation mode is as follows:
example one
Referring to the figures, the layered oil production automatic controller comprises a tubing coupling 1, a first rubber sleeve 2, an upper tray 3, a lower tray 4, a spring 5, a spring seat 6, an adjusting ring 7, a central pipe 8, a positioning screw 9, a second rubber sleeve 10 and a sand control ring 11; the oil pipe coupling 1 is in threaded connection with a central pipe 8, a sand liquid control ring 11 is sleeved on the central pipe 8 at the end part of the oil pipe coupling 1, a first rubber cylinder 2 is sleeved on the sand liquid control ring 11 and the central pipe 8, an upper tray 3 is sleeved on the first rubber cylinder 2 and the central pipe 8, a second rubber cylinder 10 is sleeved on the upper tray 3 and the central pipe 8, a lower tray 4 is sleeved on the second rubber cylinder 10 and the central pipe 8, a spring 5 is sleeved on the central pipe 8 at the end part of the lower tray 4, a spring seat 6 is sleeved on the central pipe 8 at the end part of the spring 5, the spring seat 6 is limited by an adjusting ring 7 in threaded connection with the central pipe 8, and the adjusting ring 7 is fastened by a positioning screw 9; threads are arranged at two ends of the central tube 8; one end of the upper tray 3 is provided with a taper hole; an inner hole at one end of the lower tray 4 is conical; the bottom of the adjusting ring 7 is provided with a screw hole; the outer parts of the first rubber cylinder 2 and the second rubber cylinder 10 are provided with conical sections.
Taking FC-KZQ-73-130mm (the length of the central tube is 976mm, the inner diameter is 59 mm) type automatic controller for layered oil extraction as an example, the automatic controller for layered oil extraction is lowered into a corresponding well section (a casing coupling and a perforation blasthole are avoided) according to the design of oil well construction, in the normal production process of an oil well, when the pressure of a blocked water layer reaches the set limit of the controller, a rubber sleeve compresses a spring, a liquid passing channel is formed between a sand liquid control ring and the coupling, water instantly flows into an oil extraction layer from a channel between an accessory such as the rubber sleeve and the central tube, and after the pressure is reduced, the channel is blocked again. When the oil production layer generates negative pressure, the rubber cylinder can also press the spring to supplement liquid.
Claims (6)
1. The automatic controller for layered oil production is characterized in that: the controller comprises an oil pipe coupling (1), a first rubber sleeve (2), an upper tray (3), a lower tray (4), a spring (5), a spring seat (6), an adjusting ring (7), a central pipe (8), a positioning screw (9), a second rubber sleeve (10) and a sand liquid control ring (11); the tubing coupling (1) is in threaded connection with the central tube (8), the sand control ring (11) is sleeved on the central tube (8) at the end part of the tubing coupling (1), the first rubber cylinder (2) is sleeved on the sand liquid control ring (11) and the central pipe (8), the upper tray (3) is sleeved on the first rubber cylinder (2) and the central tube (8), the second rubber cylinder (10) is sleeved on the upper tray (3) and the central tube (8), the lower tray (4) is sleeved on the second rubber cylinder (10) and the central tube (8), the spring (5) is sleeved on a central pipe (8) at the end part of the lower tray (4), a spring seat (6) is sleeved on the central pipe (8) at the end part of the spring (5), the spring seat (6) is limited by an adjusting ring (7) in threaded connection with the central pipe (8), and the adjusting ring (7) is fastened through a positioning screw (9).
2. The layered oil recovery automatic controller according to claim 1, characterized in that: and threads are arranged at two ends of the central pipe (8).
3. The layered oil recovery automatic controller according to claim 1, characterized in that: one end of the upper tray (3) is provided with a taper hole.
4. The layered oil recovery automatic controller according to claim 1, characterized in that: the inner hole at one end of the lower tray (4) is conical.
5. The layered oil recovery automatic controller according to claim 1, characterized in that: the bottom of the adjusting ring (7) is provided with a screw hole.
6. The layered oil recovery automatic controller according to claim 1, characterized in that: the outer parts of the first rubber cylinder (2) and the second rubber cylinder (10) are provided with conical sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021230012.0U CN212454383U (en) | 2020-06-30 | 2020-06-30 | Automatic controller for layered oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021230012.0U CN212454383U (en) | 2020-06-30 | 2020-06-30 | Automatic controller for layered oil production |
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| Publication Number | Publication Date |
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| CN212454383U true CN212454383U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021230012.0U Active CN212454383U (en) | 2020-06-30 | 2020-06-30 | Automatic controller for layered oil production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
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2020
- 2020-06-30 CN CN202021230012.0U patent/CN212454383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
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