CN202117645U - Two-layer section hydraulic adjustable bottom-hole regulator - Google Patents
Two-layer section hydraulic adjustable bottom-hole regulator Download PDFInfo
- Publication number
- CN202117645U CN202117645U CN2011201957479U CN201120195747U CN202117645U CN 202117645 U CN202117645 U CN 202117645U CN 2011201957479 U CN2011201957479 U CN 2011201957479U CN 201120195747 U CN201120195747 U CN 201120195747U CN 202117645 U CN202117645 U CN 202117645U
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- central tube
- sliding sleeve
- connector
- oil nozzle
- hole
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Abstract
Provided is a two-layer section hydraulic adjustable bottom-hole regulator. The two-layer section hydraulic adjustable bottom-hole regulator comprises an upper connector which is connected with a central tube. The lower end face of the upper connector is provided with a nozzle switcher in clamping mode, and nozzles are evenly distributed on the nozzle switcher. The central tube is provided with a deviated hole, a uniflow valve seat is connected in the deviated hole, a uniflow valve ball is arranged in the uniflow valve seat, and the deviated hole of the central tube is communicated with the nozzles. A rotary locating machine is connected in the lower end of the nozzle switcher, the lower end of the rotary locating machine is connected with a piston sliding sleeve, a sliding block is fixed at the upper end of the piston sliding sleeve, the outer wall of the central tube is provided with a slide way for enabling the sliding block to slide, the lower end face of the piston sliding sleeve is provided with a bearing, the lower end of the bearing is provided with a spring, the lower end of the spring is provided with a connecting head, the upper end of the connecting head is connected with the central tube, the lower end of the connecting head is connected with a lower connector, and the lower end of the connecting head is provided with a respiring piston. The two-layer section hydraulic adjustable bottom-hole regulator can achieve different actions of a two-level adjustable water plug under the same pressure, thereby achieving the effect of two-layer section adjustable allocation.
Description
Technical field
The utility model relates to a kind of oil well regulating multi-zone production rate device, especially can carry out two intervals and repeat adjustable production mandrel.
Background technology
In oilfield process, joining the product technology is one of important means of steady oily precipitation.Joining of using at present produce tubing string and comprise following several kinds, the one, annular space regulating multi-zone production rate technology, be lowered to annular space from the oil jacket annular space and join and produce appearance and regulate the adjustable production mandrel in down-hole and realize regulating multi-zone production rate; This technology is surveyed accent needed annular space; Can only be applicable to the rod-pumped well below the Φ 70mm, surveying accent simultaneously needs testing vehicle, complicated operation; Cost is higher, and receives the well site condition restriction; The 2nd, Piezoelectric switches adds one group of specific pressure through well head during adjustment and encodes and control Piezoelectric switches action, and switching mechanism is adjusted to required state, and this technology is limited by battery life, and the instrument period of validity is short, and cost is higher; The 3rd, adjustable product technology changes the transposing that slideway is realized the oil nozzle size through suppressing, but can only satisfy the needs that interval is adjustable at present.
Summary of the invention
In order to solve the problem that exists in the background technology, the utility model provides a kind of two interval hydraulic pressure adjustable production mandrel, and this instrument is realized the difference action of the adjustable water blockoff device of two-stage under the situation of uniform pressure, thereby reaches the effect of the adjustable product of two intervals.Further rational and effective control crude output plays good decreasing water cut and increasing oil effect to producing well.
The technical scheme of the utility model is: the adjustable production mandrel of this two intervals hydraulic pressure comprises top connection, and the top connection internal thread connects central tube, and described top connection lower surface card is by there being the oil nozzle converter; The oil nozzle converter upwards is evenly equipped with oil nozzle along week, and described central tube top has inclined to one side hole, and the hole internal thread is connected with the single current valve seat partially; Be provided with the single current valve ball in the single current valve seat, the inclined to one side hole of central tube communicates with oil nozzle, and oil nozzle converter lower end internal thread connects rotational positioner; Rotational positioner is enclosed within the central tube outer wall, and oil nozzle converter lower end outer wall is with shell body, and the upper end of the shoulder of rotational positioner and piston sliding sleeve is leaned on mutually and the bottom of rotational positioner is enclosed within the outer wall of piston sliding sleeve; The piston sliding sleeve is between shell body and central tube, and piston sliding sleeve upper end is fixed with slide block, and the central tube outer wall has the slideway that supplies slide block to slide; Slide block one end is positioned at the slideway of central tube outer wall, and the other end is positioned at the hole of rotational positioner inwall, and piston sliding sleeve lower surface is equipped with bearing; The bearing below is provided with spring; The spring below is provided with connector, and the connector upper external screw thread connects shell body, and connector upper end internal thread connects central tube; The connector lower external thread connects lower contact, and the connector lower end is provided with the breathing piston.
The utlity model has following beneficial effect: under the situation of uniform pressure, realize the difference action of the adjustable water blockoff device of two-stage, thereby reach the effect of the adjustable product of two intervals.Further rational and effective control crude output plays good decreasing water cut and increasing oil effect to producing well.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is tiling sketch mapes of the slideway on the central tube 6 () in the accompanying drawing 1;
Accompanying drawing 3 is tiling sketch mapes of the slideway on the central tube 6 (two) in the accompanying drawing 1.
Among the figure: 1-top connection, 2-single current valve ball, 3-single current valve seat, 4-oil nozzle converter, 5-oil nozzle, 6-central tube, 7-rotational positioner, 8-slide block, 9-piston sliding sleeve, 10-bearing, 11-spring, 12-shell body, 13-connector, 14-breathe piston, 15-sand control screens, 16-lower contact.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
Shown in accompanying drawing; The adjustable production mandrel of this two intervals hydraulic pressure comprises top connection 1, and top connection 1 internal thread connects central tube 6; Top connection 1 lower surface card is by there being oil nozzle converter 4; Oil nozzle converter 4 is along upwards being evenly equipped with 6 oil nozzles 5 week, and oil nozzle converter 4 is being with oil nozzle 5 to rotate round central tube 6, realizes the conversion of oil nozzle.Central tube 6 tops have inclined to one side hole, and the hole internal thread is connected with single current valve seat 3 partially, is provided with single current valve ball 2 in the single current valve seat 3; Single current valve seat 3 and single current valve ball 2 play the effect of one way valve, and the inclined to one side hole of central tube 6 communicates with oil nozzle 5, and oil nozzle converter 4 lower end internal threads connect rotational positioner 7; Rotational positioner 7 upper ends are enclosed within central tube 6 outer walls, and rotational positioner 7 drives 4 rotations of oil nozzle converter, and oil nozzle converter 4 lower end outer walls are with shell body 12; The upper end of the shoulder of rotational positioner 7 and piston sliding sleeve 9 is leaned on mutually and the bottom of rotational positioner 7 is enclosed within the outer wall of piston sliding sleeve 9, and piston sliding sleeve 9 has ring cavity between the lower end of piston sliding sleeve 9 and the central tube 6 between shell body 12 and central tube 6; This ring cavity communicates with through hole on the central tube 6, and liquid gets into the ring cavity between piston sliding sleeve 9 and the central tube 6 through the through hole on the central tube 6, and piston sliding sleeve 9 upper ends are fixed with slide block 8; Slide block 8 one ends are positioned at the slideway of central tube 6 outer walls, and the other end is positioned at the hole of rotational positioner 7 inwalls, and central tube 6 outer walls have the slideway that supplies slide block 8 to slide; Slideway on central tube 6 outer walls has two kinds of structures, and like Fig. 2 and Fig. 3, the slideway on central tube 6 outer walls is during like Fig. 2 structure; This adjustable production mandrel is applicable to low pressure, and the slideway on central tube 6 outer walls is during like Fig. 3 structure, and this adjustable production mandrel is applicable to high pressure; Under the effect of hydraulic pressure, piston sliding sleeve 9 is descending along the sliding trace rotation of slide block 8, and piston sliding sleeve 9 lower surfaces are equipped with bearing 10; Bearing 10 belows are provided with spring 11; Disappear the back under the effect of spring 11 at pressure, and piston sliding sleeve 9 is up along the sliding trace rotation of slide block 8, in the ring cavity of spring 11 between central tube 6 and shell body 12 and be full of antiseptic oil in the ring cavity; Spring 11 belows are provided with hollow connector 13; Connector 13 upper external screw threads connect shell body 12, and connector 13 upper end internal threads connect central tube 6, and connector 13 lower external thread connect lower contact 16; Connector 13 lower ends are provided with breathes piston 14; Spring 11 belongs to the ring cavity between central tubes 6 and the shell body 12, the centre bore of connector 13 and the chamber at breathing piston 14 places and communicates, and antiseptic oil is descending through the centre bore promotion breathing piston 14 of connector 13 when spring 11 is compressed, and is provided with sand control screens 15 between breathing piston 14 and the lower contact 16.
Its operating principle is: adjustable production mandrel (high pressure) and joining of adjustable production mandrel (low pressure) combination are produced the tubing string G.I.H.Join when producing adjustment, in the annular space of oil pipe and sleeve pipe, suppress, when pressure during greater than 17MPa; Well liquid gets in adjustable production mandrel (high voltage/low voltage) central tube 6, and at this moment, single current valve ball 2 is closed; It is descending that pressure promotes piston sliding sleeve 9 through the hole on the central tube 6, drives slide block 8 and slide.At this moment, the inner slide block 8 descending drive oil nozzles 5 of adjustable production mandrel (high pressure) are rotated in the forward 30 ° (seeing accompanying drawing 2), and after pressure disappeared, slide block 8 up drive oil nozzle 5 under the spring force effect was rotated in the forward 30 °, accomplished the oil nozzle switching motion; The inner slide block 8 descending drive oil nozzles 5 of adjustable production mandrel (low pressure) are rotated in the forward 30 ° (seeing accompanying drawing 3), after pressure disappears, and slide block 8 30 ° of up drive oil nozzle 5 reverse rotations under the spring force effect, slide block 8 is got back to original position, and oil nozzle is not changed.
In like manner, when pressure during less than 17MPa, the inner slide block 8 of adjustable production mandrel (low pressure) is rotated in the forward 60 °, accomplishes the oil nozzle conversion, adjustable production mandrel (high pressure) 30 ° of reverse rotations behind 30 ° of rotation forwards, and slide block 8 is got back to original position, and oil nozzle is not changed.
Claims (1)
1. the adjustable production mandrel of interval hydraulic pressure comprises top connection (1), and top connection (1) internal thread connects central tube (6); It is characterized in that: described top connection (1) lower surface card is by there being oil nozzle converter (4), and oil nozzle converter (4) is along upwards being evenly equipped with oil nozzle (5) week, and described central tube (6) top has inclined to one side hole; The hole internal thread is connected with single current valve seat (3) partially, is provided with single current valve ball (2) in the single current valve seat (3), and the inclined to one side hole of central tube (6) communicates with oil nozzle (5); Oil nozzle converter (4) lower end internal thread connects rotational positioner (7), and rotational positioner (7) upper end is enclosed within central tube (6) outer wall, and oil nozzle converter (4) lower end outer wall is with shell body (12); The upper end of the shoulder of rotational positioner (7) and piston sliding sleeve (9) is leaned on mutually and the bottom of rotational positioner (7) is enclosed within the outer wall of piston sliding sleeve (9), and piston sliding sleeve (9) is positioned between shell body (12) and the central tube (6), is fixed with slide block (8) on the piston sliding sleeve (9); The slideway that central tube (6) outer wall has confession slide block (8) to slide; Slide block (8) one ends are positioned at the slideway of central tube (6) outer wall, and the other end is positioned at the hole of rotational positioner (7) inwall, and piston sliding sleeve (9) lower surface is equipped with bearing (10); Bearing (10) below is provided with spring (11); Spring (11) below is provided with connector (13), and connector (13) upper external screw thread connects shell body (12), and connector (13) upper end internal thread connects central tube (6); Connector (13) lower external thread connects lower contact (16), and connector (13) lower end is provided with breathes piston (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201957479U CN202117645U (en) | 2011-06-11 | 2011-06-11 | Two-layer section hydraulic adjustable bottom-hole regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201957479U CN202117645U (en) | 2011-06-11 | 2011-06-11 | Two-layer section hydraulic adjustable bottom-hole regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117645U true CN202117645U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201957479U Expired - Fee Related CN202117645U (en) | 2011-06-11 | 2011-06-11 | Two-layer section hydraulic adjustable bottom-hole regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201465A (en) * | 2015-09-24 | 2015-12-30 | 西南石油大学 | Eccentric type adjustable downhole throttling device for downhole throttling during the development process of gas well natural gas |
| CN109339738A (en) * | 2018-11-23 | 2019-02-15 | 东营市昌瑞石油机械配件有限责任公司 | It is hydraulic to change layer track switch |
-
2011
- 2011-06-11 CN CN2011201957479U patent/CN202117645U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201465A (en) * | 2015-09-24 | 2015-12-30 | 西南石油大学 | Eccentric type adjustable downhole throttling device for downhole throttling during the development process of gas well natural gas |
| CN105201465B (en) * | 2015-09-24 | 2017-07-25 | 西南石油大学 | A kind of centering type adjustable underground throttling arrangement |
| CN109339738A (en) * | 2018-11-23 | 2019-02-15 | 东营市昌瑞石油机械配件有限责任公司 | It is hydraulic to change layer track switch |
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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: 20120118 Termination date: 20190611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |