CN217380512U - Two oil reservoir separate-layer mining or commingled mining device of oil well - Google Patents
Two oil reservoir separate-layer mining or commingled mining device of oil well Download PDFInfo
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- CN217380512U CN217380512U CN202220647630.8U CN202220647630U CN217380512U CN 217380512 U CN217380512 U CN 217380512U CN 202220647630 U CN202220647630 U CN 202220647630U CN 217380512 U CN217380512 U CN 217380512U
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Abstract
The utility model relates to an instrument technical field under the oil well is two oil reservoir layering exploitation or close device of adopting of oil well, the device is the cylinder structure, and the rotary seal connector passes from the lower part of casing, and the well upper portion of rotary seal connector is passed through the pin and is connected with the casing, and the upper portion threaded connection of top connection and rotary seal connector is located the lower part of casing rotary seal connector and is equipped with sealed cone, the lower part and the lower clutch threaded connection of casing. The utility model discloses a tubular column realizes respectively that the shut produces suction production, lower floor's layering exploitation suction production, upper strata layering exploitation suction production, for prior art, can save down oil production pipe twice, saves the packer in the pit, practices thrift the working cost, reduces crude oil production cost.
Description
Technical Field
The utility model relates to an oil field well workover tool technical field is specifically two oil reservoir separate layer exploitation of oil well or is closed to adopt the device.
Background
In the production process of the pumping well, layered oil extraction and suction production are needed, each layer section is separated by a packer, tools with different structures are put into the pumping well for production, according to the measure requirements, a pipe column is frequently pulled down to finish the purpose of producing different oil layers, in order to reduce the operation cost of the oil well and the production cost of crude oil, a layered mining or combined mining device for two oil layers of the oil well is developed, and the purpose of producing single-layer or double-layer combined mining by one pipe column is achieved.
Disclosure of Invention
The utility model aims at providing a two oil reservoir separate layer exploitation of oil well or close the device of adopting to the above-mentioned defect that prior art exists exactly.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a: the sealing device comprises an upper joint, a rotary sealing connector, a pin, a shell, an upper sealing ring, a middle sealing ring, a sealing cone, a lower sealing ring and a lower joint; the method is characterized in that: the device is of a cylindrical structure, the rotary sealing connector penetrates through the lower portion of the shell, the middle upper portion of the rotary sealing connector is connected with the shell through a pin, the upper connector is in threaded connection with the upper portion of the rotary sealing connector, the lower portion, located in the shell, of the rotary sealing connector is provided with the sealing cone, and the lower portion of the shell is in threaded connection with the lower connector.
Further, the rotary seal connector is a cylinder with a one-level ladder on the outer diameter, the outer diameter of the upper portion is smaller than that of the lower portion, the outer diameter of the lower portion is slightly smaller than that of the inner diameter of the shell, an upper sealing ring is arranged on the lower portion corresponding to the outer overflowing through hole W in the shell, an inner overflowing through hole N is arranged on the lower portion of the rotary seal connector, a blind hole is arranged on the middle upper portion of the rotary seal connector corresponding to the pin, an outer thread matched with the upper connector is arranged on the upper portion of the rotary seal connector, and a taper hole matched with the sealing cone is arranged in the inner hole of the bottom of the rotary seal connector.
Furthermore, the shell is cylindrical, an annular boss is arranged on the inner diameter of the upper portion of the shell, the inner diameter of the annular boss is slightly larger than the outer diameter of the upper portion of the rotary sealing connector, an outer overflowing through hole W is formed in the middle of the shell, and an inner thread matched with the lower connector is formed in the lower portion of the shell.
Furthermore, the sealing cone is a combination of a cone frustum and a cylinder, and a middle sealing ring is arranged at the upper part of the sealing cone.
Furthermore, the number of the upper sealing rings is two.
Furthermore, the upper portion of the lower connector is provided with an external thread matched with the shell, the bottom of the external thread is provided with a lower sealing ring, the lower portion of the lower sealing ring is provided with an external thread of an oil pipe, and the upper portion of the center hole is provided with a taper hole.
The utility model discloses with prior art have following beneficial effect:
the utility model discloses a tubular column realizes respectively that the shut produces suction production, lower floor's layering exploitation suction production, upper strata layering exploitation suction production, for prior art, can save down oil production pipe twice, saves the packer in the pit, practices thrift the working cost, reduces crude oil production cost.
Drawings
FIG. 1 is a schematic view of the utility model of a front-view semi-cut-open combined mining structure
FIG. 2 is a schematic view of the main-view semi-sectional mining structure of the present invention
FIG. 3 is a schematic view of the combined production string structure of the present invention
FIG. 4 is a schematic view of the structure of the separate production string of the present invention
In the figure: 0. the packer comprises an upper joint, a rotary sealing connector 1, a pin 2, a shell 3, an upper sealing ring 4, a middle sealing ring 5, a sealing cone 6, a lower sealing ring 7, a lower joint 8, a plug 9, a screen pipe 10, a screen pipe 11.211 packer with a rubber sleeve 12, a two oil layer layered mining or co-production device of an oil well 13, an oil well pump 14, a pin type oil drainer 15, an oil pipe 16, oil layers I and 17 and an oil layer II; n. inner overflowing through hole, W. outer overflowing through hole.
Detailed Description
The invention will be further elucidated with reference to the following drawings:
as shown in fig. 1, a two-zone layer mining or commingling device for an oil well comprises: the device comprises an upper joint 0, a rotary sealing connector 1, a pin 2, a shell 3, an upper sealing ring 4, a middle sealing ring 5, a sealing cone 6, a lower sealing ring 7 and a lower joint 8; the method is characterized in that: the device is a cylinder structure, the rotary sealing connector 1 penetrates through the lower portion of the shell 3, the middle upper portion of the rotary sealing connector 1 is connected with the shell 3 through the pin 2, the upper connector 0 is in threaded connection with the upper portion of the rotary sealing connector 1, the sealing cone 6 is arranged on the lower portion, located in the shell 3, of the rotary sealing connector 1, and the lower portion of the shell 3 is in threaded connection with the lower connector 8.
Specifically, rotary seal connector 1 is equipped with the drum of one-level ladder for the external diameter, and the upper portion external diameter is less than the lower part external diameter, and the lower part external diameter is less than the internal diameter of casing 3 slightly, and the lower part corresponds outer through-hole W on the casing 3 and is equipped with sealing washer 4, and the through-hole N overflows in the lower part of rotary seal connector 1 is equipped with, and the well upper portion of rotary seal connector 1 corresponds pin 2 and is equipped with the blind hole, and upper portion is equipped with and top connection 0 complex external screw thread, and the bottom hole is equipped with and seals 6 complex taper holes of cone.
Specifically, the shell 3 is cylindrical, an annular boss is arranged on the inner diameter of the upper portion of the shell, the inner diameter of the annular boss is slightly larger than the outer diameter of the upper portion of the rotary sealing connector 1, an outer through-flow hole W is formed in the middle of the shell 3, and an inner thread matched with the lower connector 8 is formed in the lower portion of the shell.
Specifically, the sealing cone 6 is a combination of a truncated cone and a cylinder, and the upper part of the sealing cone is provided with a middle sealing ring 5.
Specifically, two upper seal rings 4 are provided.
Specifically, the upper portion of the lower joint 8 is provided with an external thread matched with the shell 3, the bottom of the external thread is provided with a lower sealing ring 7, the lower portion of the external thread is provided with an oil pipe external thread, and the upper portion of the center hole is provided with a taper hole.
Example one
The operation steps of the two oil layer separate layer mining or combined mining device of the oil well are as follows:
(1) and (3) gradually putting the pipe columns matched and connected in the step (1) into the well, and putting the 211 packer 11 with the rubber sleeve into the upper part of the oil layer II 17 for 2-4 meters (avoiding the casing coupling for more than 2 m).
(2) And (3) setting construction, namely setting the 211 packer to a designed position of a tubular column by putting the tubular column down after the setting stroke height (1.5 meters) is lifted, and setting to be qualified.
(3) The oil well pump 13 is combined for production construction, the oil well pump 13 is started to start pumping, liquid from an oil layer I16 and an oil layer II 17 enters the sieve tube 10, enters the center of two oil layer layered production or combined production devices 12 of the oil well through the central tube with the rubber sleeve packer 11 211, pushes the sealing cone 6 open, flows into the oil well pump 13, and then is discharged to the ground along the oil tube 15 to collect oil, and the combined production process is completed.
Example two
As shown in fig. 4, the oil pump 13 performs single-layer pumping production on an oil layer i 16 and an oil layer ii 17:
(1) and (5) unsealing and washing the well. Firstly, lifting the pipe column to unseal the stroke height (2 meters), unsealing the 211 packer with the rubber sleeve 11, and circularly washing the well by a ground pump truck to clean sediments deposited on the 211 packer with the rubber sleeve 11.
(2) Pumping an oil layer I16, deepening the seat seal of the pipe column, setting a 211 packer with a rubber cylinder 11 between the oil layer I16 and the oil layer II 17 by the lower boundary position of the oil layer II 17 by the lower assembly pipe column, starting an oil pump 13 to pump the oil layer I16 at first, after the construction process is completed by pumping the oil layer I16, lifting the pipe column to realize the deblocking of the 211 packer with the rubber cylinder by the deblocking stroke height, and stopping the pump until the cleaning outlet returns liquid to be qualified (backwashing and ensuring that sand cannot be deposited in the oil pipe).
(3) Pumping an oil layer II 17, lifting a setting stroke height, setting a 211 packer 11 with a rubber sleeve at the original position by lowering a pipe column, continuously lowering the load of the pipe column by lowering the pipe column from a well mouth to increase the load of the pipe column until the load is reduced by about 10KN compared with the suspended load of the pumping pipe column, rotating the pipe column at the well mouth by adopting a hydraulic power tong for 12-15 circles in the forward direction, stopping rotating the pipe column at the well mouth after the reverse torque is displayed, shearing the pin 2 in the rotating process, closing a liquid inlet channel at the lower part of two oil layer separate mining or combined mining devices 12 of the oil well, opening a lateral liquid inlet channel of a tool at the moment, namely communicating an inner overflowing through hole N with an outer overflowing through hole W, starting an oil pump 13 at the moment, and performing single-layer pumping mining on the oil layer II 17. And the oil layer II 17 does not need to be unsealed after suction construction is finished, and can be connected with a ground well flushing pipeline and a pump truck to immediately carry out reverse well flushing, so that deposited oil sludge sand is circularly flushed. And (4) lifting the pipe column to unseal the stroke height, and finishing the layered suction production work.
And 3, performing layering and combined layer mining and pumping on the two oil layers by the oil pump 13, and then transferring to the lower part design process for construction.
The two oil layers of an oil well separate layer mining or co-production device respectively realizes the combined layer mining suction production, the lower layer separate layer mining suction production and the upper layer separate layer mining suction production through one tubular column.
Claims (6)
1. A two-zone stratified or commingled production apparatus for an oil well, comprising: the sealing device comprises an upper joint (0), a rotary sealing connecting body (1), a pin (2), a shell (3), an upper sealing ring (4), a middle sealing ring (5), a sealing cone (6), a lower sealing ring (7) and a lower joint (8); the method is characterized in that: the device is of a cylindrical structure, the rotary sealing connector (1) penetrates through the lower portion of the shell (3), the middle upper portion of the rotary sealing connector (1) is connected with the shell (3) through the pin (2), the upper connector (0) is in threaded connection with the upper portion of the rotary sealing connector (1), the lower portion of the rotary sealing connector (1) located in the shell (3) is provided with the sealing cone (6), and the lower portion of the shell (3) is in threaded connection with the lower connector (8).
2. The two-zone separate mining or commingling device of an oil well according to claim 1, wherein: rotary seal connector (1) is equipped with the drum of one-level ladder for the external diameter, the upper portion external diameter is less than the lower part external diameter, the lower part external diameter is less than the internal diameter of casing (3) slightly, the lower part corresponds outer through-hole (W) of overflowing on casing (3) and is equipped with sealing washer (4), through-hole (N) overflows in the lower part of rotary seal connector (1) is equipped with, the well upper portion of rotary seal connector (1) corresponds pin (2) and is equipped with the blind hole, upper portion be equipped with top connection (0) complex external screw thread, the bottom hole is equipped with and seals cone (6) complex taper hole.
3. The two-zone separate mining or commingling device of an oil well according to claim 1, wherein: the shell (3) is cylindrical, an annular boss is arranged on the inner diameter of the upper portion of the shell, the inner diameter of the annular boss is slightly larger than the outer diameter of the upper portion of the rotary sealing connector (1), an outer overflowing through hole (W) is formed in the middle of the shell (3), and an inner thread matched with the lower connector (8) is arranged on the lower portion of the shell.
4. The two-zone separate mining or commingling device of an oil well according to claim 1, wherein: the sealing cone (6) is a combination of a cone frustum and a cylinder, and the upper part of the sealing cone is provided with a middle sealing ring (5).
5. The two-zone separate mining or commingling device of an oil well according to claim 1, wherein: the number of the upper sealing rings (4) is two.
6. The two-zone separate mining or commingling device of an oil well according to claim 1, wherein: the upper portion of the lower joint (8) is provided with an external thread matched with the shell (3), the bottom of the external thread is provided with a lower sealing ring (7), the lower portion of the external thread is provided with an oil pipe external thread, and the upper portion of the center hole is provided with a taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220647630.8U CN217380512U (en) | 2022-03-24 | 2022-03-24 | Two oil reservoir separate-layer mining or commingled mining device of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220647630.8U CN217380512U (en) | 2022-03-24 | 2022-03-24 | Two oil reservoir separate-layer mining or commingled mining device of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217380512U true CN217380512U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220647630.8U Active CN217380512U (en) | 2022-03-24 | 2022-03-24 | Two oil reservoir separate-layer mining or commingled mining device of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217380512U (en) |
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2022
- 2022-03-24 CN CN202220647630.8U patent/CN217380512U/en active Active
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