CN215761630U - Concentric production allocation device for multi-oil-layer production allocation process pipe column - Google Patents
Concentric production allocation device for multi-oil-layer production allocation process pipe column Download PDFInfo
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- CN215761630U CN215761630U CN202121891718.6U CN202121891718U CN215761630U CN 215761630 U CN215761630 U CN 215761630U CN 202121891718 U CN202121891718 U CN 202121891718U CN 215761630 U CN215761630 U CN 215761630U
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Abstract
The utility model discloses a concentric oil production allocation device for a multi-oil-layer production allocation process pipe column, which comprises an outer pipe body, wherein an adjusting device for controlling the closing or opening of a radial through hole of the oil production allocation device is arranged in the outer pipe body, the adjusting device comprises an adjusting sleeve, a torque claw positioning long hole of a measuring and adjusting instrument is formed in the upper part of the adjusting sleeve, an annular boss is arranged on the outer pipe wall in the middle of the adjusting sleeve, an adjusting external thread is arranged on the cylindrical surface of the annular boss, a sealing sleeve capable of closing or opening the radial through hole of the oil production allocation device through axial movement is arranged between the outer pipe wall at the lower part of the adjusting sleeve and the inner pipe wall of a tubular main body of the oil production allocation device, a limiting bearing mechanism capable of enabling the sealing sleeve and the adjusting sleeve to relatively rotate only along the circumferential direction and not to relatively move along the axial direction is arranged between the sealing sleeve and the adjusting sleeve, and an adjusting internal thread matched with the adjusting external thread is arranged on the inner pipe wall at the lower part of the positioning sleeve. The concentric matching and mining device is good in sealing effect, low in requirements on part precision and assembly precision, good in working reliability and long in service life.
Description
Technical Field
The utility model relates to an oil field downhole matching and production device, in particular to a concentric matching and production device used in intelligent production of a multi-oil-layer concentric pipe column.
Background
When multiple oil layers are mined by adopting concentric pipe columns, a distributing and mining device is required to be arranged underground, and the yield of each oil layer is adjusted by using a measuring and adjusting instrument according to the parameters of each oil layer. The concentric matching and mining device in the prior art adopts a rotary sealing sleeve to close or open a radial through hole of the matching and mining device, and the sealing sleeve is required to rotate around the axis of the sealing sleeve when moving along the axis direction in the action process of the sealing sleeve, so that the sealing rubber gasket matched with the lower end surface of the sealing sleeve can be twisted and pressed in the moment of opening or closing the radial through hole of the matching and mining device, the matching and mining device can be damaged by the sealing rubber gasket after 3-5 times of adjustment and measurement, sealing failure is caused, and the service life of the matching and mining device is seriously influenced. In addition, because the sealing sleeve has axial linear motion and rotational motion around the axis of the sealing sleeve, the requirement on the coaxiality of the sealing sleeve and the matching and mining device body is very strict in order to ensure the sealing effect between the sealing sleeve and the matching and mining device body, the machining precision and the assembly precision of the sealing sleeve and the matching and mining device body are very high, the manufacturing difficulty is increased, the production cost is also increased, in the using process, sand is easy to enter between the sealing sleeve and the matching and mining device body and is blocked, and the reliability is low.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is: the concentric oil distributing and mining device for the multi-oil-layer production distributing process pipe column is good in sealing effect, low in requirements on part precision and assembly precision, good in working reliability and long in service life.
The technical scheme for solving the technical problem is as follows: a concentric matching and mining device for a multi-oil-layer matching and production process tubular column comprises an outer tube body formed by sequentially connecting an upper joint, a positioning sleeve, a matching and mining tubular main body and a lower joint, wherein the tube wall of the matching and mining tubular main body is provided with a radial through hole, an adjusting device matched with a measuring and regulating instrument and used for controlling the closing or opening of the radial through hole of the matching and mining device is arranged in the outer tube body, the adjusting device comprises an adjusting sleeve, the upper part of the adjusting sleeve is provided with a measuring and regulating instrument torsion claw positioning long hole, the outer tube wall in the middle of the adjusting sleeve is provided with an annular boss, the cylindrical surface of the annular boss is provided with an adjusting external thread, a sealing sleeve capable of closing or opening the radial through hole of the matching and mining device through axial movement is arranged between the outer tube wall at the lower part of the adjusting sleeve and the inner tube wall of the matching and mining tubular main body, a limiting bearing mechanism is arranged between the sealing sleeve and the adjusting sleeve, and the sealing sleeve can enable the sealing sleeve to relatively rotate along the circumferential direction and can not relatively move along the axial direction, an adjusting internal thread matched with the adjusting external thread is arranged on the inner pipe wall at the lower part of the positioning sleeve.
As a further improvement of the utility model: the limiting bearing mechanism comprises a plurality of steel balls which are arranged at equal angular intervals in an annular mode, a steel ball positioning pit is arranged on the outer wall of the adjusting sleeve, a steel ball limiting ring groove is arranged on the inner wall of the sealing sleeve, and a steel ball placing hole-sealed blocking wire are arranged at the bottom of the steel ball limiting ring groove.
As a further improvement of the utility model: the upper end of the positioning sleeve is provided with a positioning opening matched with the positioning claw of the measuring and adjusting instrument.
As a further improvement of the utility model: and a sealing rubber pad matched with the lower end face of the sealing sleeve is arranged above the lower joint and is clamped between the lower joint and the tubular main body of the sampling pipe through a sealing pad protective sleeve.
As a further improvement of the utility model: a sand prevention sheath which seals the torque claw positioning long hole of the adjusting sleeve from the outer circumference is arranged between the adjusting sleeve and the positioning sleeve.
As a further improvement of the utility model: an upper sand prevention ring in sliding sealing fit with the inner wall of the positioning sleeve is arranged on the outer wall of the upper end of the sand prevention sheath.
As a further improvement of the utility model: the outer wall of the lower end of the adjusting sleeve is provided with a lower sand-proof ring which is in sliding seal fit with the sealing sleeve.
Has the advantages that: the concentric oil distributing and mining device for the multi-oil-layer oil distributing and producing process tubular column adopts the limiting bearing mechanism which is arranged between the sealing sleeve and the adjusting sleeve and enables the sealing sleeve and the adjusting sleeve to relatively rotate along the circumferential direction and not to relatively move along the axial direction, and in the working process, the sealing sleeve only can move upwards/downwards along the axial direction in the tubular main body of the oil distributing and mining device under the driving of the adjusting sleeve and cannot rotate around the axis of the sealing sleeve and the adjusting sleeve, so that the requirements on the part precision and the assembling precision of the sealing sleeve and the tubular main body of the oil distributing and mining device are relaxed, the production cost and the manufacturing difficulty are reduced, the risk of the clamping of the sealing sleeve and the tubular main body of the oil distributing and mining device can be effectively reduced, the reliability of the device is improved, and the service life of the device is prolonged. The limiting bearing mechanism comprises a plurality of steel balls which are arranged at equal angular intervals in an annular mode, a steel ball positioning pit is arranged on the outer wall of the adjusting sleeve, a steel ball limiting ring groove is arranged on the inner wall of the sealing sleeve, and a steel ball placing hole and a wire blocking device for sealing the steel ball placing hole are arranged at the bottom of the steel ball limiting ring groove. The technical characteristic that the upper end of the positioning sleeve is provided with the positioning notch matched with the positioning claw of the measuring and adjusting instrument is adopted, so that the positioning sleeve can be effectively prevented from rotating together with the adjusting sleeve to cause loose connection in the measuring and adjusting process, and the action precision of the adjusting sleeve is improved. The sealing rubber pad matched with the lower end face of the sealing sleeve is arranged above the lower joint and is fixedly clamped between the lower joint and the tubular main body of the auxiliary collector through the sealing gasket protective sleeve, so that the sealing effect of the lower end face of the sealing sleeve is further improved. In addition, the action that the sealing sleeve rotates around the axis of the sealing sleeve at the moment of opening or closing the radial through hole is eliminated, so that the sealing rubber gasket is effectively prevented from being damaged in the process to cause sealing failure, the service life of the equipment is longer, and the sealing effect is better. Because the technical characteristic that the sand prevention jacket which seals the torsion claw positioning long hole of the adjusting sleeve from the outer circumference is arranged between the adjusting sleeve and the positioning sleeve is adopted, the small sand grains in the oil pipe can be effectively prevented from entering between the adjusting sleeve and the positioning sleeve through the torsion claw positioning long hole to cause equipment damage or blocking. Because the outer wall at the upper end of the sand prevention sheath is provided with the upper sand prevention ring which is in sliding sealing fit with the inner wall of the positioning sleeve, and the outer wall at the lower end of the adjusting sleeve is provided with the lower sand prevention ring which is in sliding sealing fit with the sealing sleeve, the sand prevention capability of the device is further improved, so that the multi-oil-layer production allocation process tubular column can keep a good working state even if the multi-oil-layer production allocation process tubular column works in a severe underground environment for a long time, and the production requirements of oil fields are met.
Drawings
The concentric production allocator for a multi-zone production allocation process pipe column of the utility model is further described in detail with reference to the accompanying drawings.
Fig. 1 is an axial cross-section of a concentric production distributor for a multi-zone production process string according to the utility model.
Detailed Description
As shown in figure 1, the concentric oil distributing and mining device for the multi-oil-layer oil distributing and production process tubular column comprises an outer tubular body formed by sequentially connecting an upper joint 1, a positioning sleeve 2, an oil distributing and mining tubular main body 5 and a lower joint 9, wherein a radial through hole 11 is formed in the wall of the oil distributing and mining tubular main body, and an adjusting device which is matched with a measuring and regulating instrument and controls the closing or opening of the radial through hole of the oil distributing and mining device is arranged in the outer tubular body.
The adjusting device comprises an adjusting sleeve 4, a torsion claw positioning long hole 16 of the measuring and adjusting instrument is arranged at the upper part of the adjusting sleeve, an annular boss 14 is arranged on the outer tube wall in the middle of the adjusting sleeve, an adjusting external thread 13 is arranged on the cylindrical surface of the annular boss, a sealing sleeve 6 capable of closing or opening a radial through hole of the matched mining device through axial movement is arranged between the outer tube wall at the lower part of the adjusting sleeve and the inner tube wall of the tubular main body of the matched mining device, and the inner tube wall of the sealing sleeve is in sliding sealing fit with the outer tube wall of the main body of the matched mining device.
The position limiting bearing mechanism is arranged between the sealing sleeve and the adjusting sleeve, the sealing sleeve and the adjusting sleeve can only relatively rotate along the circumferential direction and can not relatively move along the axial direction, the upper end of the positioning sleeve is provided with a positioning opening 18 matched with a positioning claw of the measuring and adjusting instrument, the inner pipe wall at the lower part of the positioning sleeve is provided with an adjusting internal thread 15 matched with an adjusting external thread, when the position limiting bearing mechanism works, the positioning claw of the measuring and adjusting instrument is clamped at the positioning opening, the torsion claw of the measuring and adjusting instrument is clamped in a positioning long hole of the adjusting sleeve, the positioning claw does not move and rotates during adjustment, so that the adjusting sleeve rotates around the axis of the adjusting sleeve in the positioning sleeve, and under the action of the adjusting internal thread and the adjusting external thread, the adjusting sleeve displaces in the axis direction while rotating around the axis of the adjusting sleeve, the sealing sleeve is driven to move up/down along the axis together, and the radial through hole of the distributing and collecting device is closed or opened.
And a sealing rubber gasket 7 matched with the lower end surface of the sealing sleeve is arranged above the lower joint and is fixedly clamped between the lower joint and the tubular main body of the auxiliary mining machine through a steel sealing gasket protective sleeve 8. A sand prevention jacket 3 which seals the torsion claw positioning long hole of the adjusting sleeve from the outer circumference is arranged between the adjusting sleeve and the positioning sleeve. An upper sand control ring 17 which is matched with the inner wall of the positioning sleeve in a sliding sealing way is arranged on the outer wall of the upper end of the sand control sheath. The outer wall of the lower end of the adjusting sleeve is provided with a lower sand prevention ring 10 which is in sliding sealing fit with the sealing sleeve. The upper sand prevention ring and the lower sand prevention ring are both polytetrafluoroethylene sand prevention rings.
Spacing bearing mechanism includes a plurality of steel balls 12 that the annular is equant the angle range, is equipped with the steel ball location hole at the outer wall of adjusting collar, is equipped with the spacing annular of steel ball at the inner wall of seal cover, opens the tank bottom at the spacing annular of steel ring and has the steel ball to place the hole and place the stifled silk of hole confined with the steel ball, during the assembly, need pour into lubricating oil into to the steel ball spacing inslot before stifled silk installation, sets up 20 diameter 6 mm's steel ball in the spacing bearing mechanism of this embodiment.
Claims (7)
1. The utility model provides a multioil reservoir is joined in marriage production technology tubular column and is joined in marriage and adopt ware with one heart, includes by top connection, position sleeve, join in marriage outer body that adopts tubular main part, lower clutch to connect the constitution in order, and the pipe wall of joining in marriage and adopting tubular main part is opened has radial through-hole, is equipped with in outer body and surveys the adjusting device that adjusts the appearance cooperation, control and joins in marriage the radial through-hole of adopting the ware and close or open, characterized by: the adjusting device comprises an adjusting sleeve, a torsion claw positioning long hole of the measuring and adjusting instrument is formed in the upper portion of the adjusting sleeve, an annular boss is arranged on the outer tube wall in the middle of the adjusting sleeve, adjusting external threads are arranged on the cylindrical surface of the annular boss, a sealing sleeve capable of closing or opening a radial through hole of the matched mining device through axial movement is arranged between the outer tube wall in the lower portion of the adjusting sleeve and the inner tube wall of the matched mining device tubular main body, a limiting bearing mechanism enabling the sealing sleeve and the adjusting sleeve to rotate relatively only in the circumferential direction and not to move relatively in the axial direction is arranged between the sealing sleeve and the adjusting sleeve, and adjusting internal threads matched with the adjusting external threads are arranged on the inner tube wall in the lower portion of the positioning sleeve.
2. The concentric production distributor for a multi-zone production allocation process pipe column according to claim 1, characterized in that: the limiting bearing mechanism comprises a plurality of steel balls which are arranged at equal angular intervals in an annular mode, a steel ball positioning pit is arranged on the outer wall of the adjusting sleeve, a steel ball limiting ring groove is arranged on the inner wall of the sealing sleeve, and a steel ball placing hole-sealed blocking wire are arranged at the bottom of the steel ball limiting ring groove.
3. The concentric production distributor for a multi-zone production allocation process pipe column according to claim 2, characterized in that: the upper end of the positioning sleeve is provided with a positioning opening matched with the positioning claw of the measuring and adjusting instrument.
4. The concentric production distributor for a multi-zone production allocation process pipe column according to claim 3, characterized in that: and a sealing rubber pad matched with the lower end face of the sealing sleeve is arranged above the lower joint and is clamped between the lower joint and the tubular main body of the sampling pipe through a sealing pad protective sleeve.
5. The concentric production distributor for a multi-zone production allocation process pipe string according to any one of claims 1 to 4, characterized in that: a sand prevention sheath which seals the torque claw positioning long hole of the adjusting sleeve from the outer circumference is arranged between the adjusting sleeve and the positioning sleeve.
6. The concentric production distributor for a multi-zone production allocation process pipe column according to claim 5, wherein: an upper sand prevention ring in sliding sealing fit with the inner wall of the positioning sleeve is arranged on the outer wall of the upper end of the sand prevention sheath.
7. The concentric production distributor for a multi-zone production allocation process pipe column according to claim 6, wherein: the outer wall of the lower end of the adjusting sleeve is provided with a lower sand-proof ring which is in sliding seal fit with the sealing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891718.6U CN215761630U (en) | 2021-08-13 | 2021-08-13 | Concentric production allocation device for multi-oil-layer production allocation process pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891718.6U CN215761630U (en) | 2021-08-13 | 2021-08-13 | Concentric production allocation device for multi-oil-layer production allocation process pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761630U true CN215761630U (en) | 2022-02-08 |
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ID=80074294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121891718.6U Active CN215761630U (en) | 2021-08-13 | 2021-08-13 | Concentric production allocation device for multi-oil-layer production allocation process pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761630U (en) |
-
2021
- 2021-08-13 CN CN202121891718.6U patent/CN215761630U/en active Active
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