CN202914035U - Adaptive equalization control valve of horizontal well - Google Patents
Adaptive equalization control valve of horizontal well Download PDFInfo
- Publication number
- CN202914035U CN202914035U CN 201220605377 CN201220605377U CN202914035U CN 202914035 U CN202914035 U CN 202914035U CN 201220605377 CN201220605377 CN 201220605377 CN 201220605377 U CN201220605377 U CN 201220605377U CN 202914035 U CN202914035 U CN 202914035U
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- control valve
- valve
- restriction choke
- valve seat
- inflating cells
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Abstract
The utility model discloses an adaptive equalization control valve of a horizontal well. The adaptive equalization control valve of the horizontal well comprises a base pipe (1), a control valve outer ring sleeve (3), a control valve seat (4) and a screen pipe (5), wherein a sealed cavity A (6) is arranged between the control valve outer ring sleeve (3) and the control valve seat (4), a cavity B (7) is arranged in the control valve seat (4), a restriction choke (2) is arranged between the sealed cavity A (6) and the cavity B (7), the restriction choke (2) comprises a package formed by a corrugated pipe (15), an inflation cavity shell body (19) and inflation holes sealed by a valve element (16), one end of a valve rod (13) is fixedly arranged on a sealing plate (23) of the corrugated pipe (15), and a valve ball (12) is fixedly arranged at the end portion of the other end of the valve rod (13). The adaptive equalization control valve of the horizontal well has the advantages of equalizing a liquid production profile, delaying the breaking through of gas/water, eliminating the toe effect, eliminating circular empty flow influences, prolonging the production cycle of an oil-gas well, and improving the recovery rate of a storage layer of the horizontal well.
Description
Technical field
The utility model relates to a kind of self-adaptive controlled water conservancy project tool for oil, natural gas extraction, particularly a kind of horizontal well adaptive equalization control valve.
Background technology
Because the complex structural wells such as horizontal well and extended reach well have the incomparable advantage of many straight wells, be the main exploitation means that present thin layer oil reservoir, bottom water reservoir, fractured reservoir, heavy crude reservoir and ocean shallow water and deep water hydrocarbon are hidden, China three major oil companies are just with the speed increment of annual hundreds of saliva horizontal well.But because the non-homogeneity of oil-gas reservoir, toe with effect and the impact of annular space stream, cause the oil-gas reservoir premature water breakthrough so that production profile is unbalanced, finally shorten the Oil/gas Well life-span and reduce the profitability of Oil/gas Well.The main method of controlling both at home and abroad at present: conventional completion (sectional well completion+change completion parameter), semi-intelligent completion (sectional well completion+ICD control), intelligent well completion (sectional well completion+ICV control), DWS dual-string completion technology, central tube completion technique, special completion technique, wherein semi-intelligent completion (sectional well completion+ICD control) is the control completion mode that mainly realizes the equilibrium of industry section.Ramp metering device (being called for short ICD, Inflow Control Device) is specially for obtaining the horizontal well completion new tool that inflow dynamic equilibrium is developed along horizontal wellbore.Abroad flowloop is tested and the confirmation of field experience subsequently, thereby the ramp metering utensil has the function that reaches prolongation Oil/gas Well Production Life, reduces water cone amount and raising recovery ratio by prolonging the inflow peak period.At present, three kinds of main Types ICD are arranged both at home and abroad: orifice plate/nozzle-type (throttle-type), screw path type (friction-type), and hybrid design (combination of throttle-type and friction-type), these three kinds of ICD produce pressure drop by different modes.
Orifice plate/nozzle-type ICD adopts compound orifice plate or nozzle to produce the required pressure reduction of flow equilibrium.Each ramp metering device is made of orifice plate or the nozzle of a lot of known diameter and flow behavior, obtains different voltage drop values by reducing or opening nozzle number.Screw path type ICD is improved by the earliest labyrinth ICD, and this ramp metering device is comprised of the helical duct of certain diameter and length, obtains rated differential head under the specific flow velocity by preset diameters and port number.Hybrid ICD is a kind of novel I CD, and such ICD is comprised of many end plates with chute, and the chute on the adjacent end plate becomes 90 ° of phase places, by the end plate number being set and the chute size produces required pressure reduction.
These three kinds of ICD designed additional difference pressuring loss according to the horizontal well production profile before lower going-into-well, can not change after going into the well, and more can not dynamically carry out self-control according to reservoir production, belonged to passive-type and transferred stream controller.Because fluid is constantly to change along the production fluid contribution of pit shaft in the reservoir, and the permeability data that well logging obtains is also not necessarily very accurate.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of can balanced production profile, postpone gas/water breakthrough, eliminate toe with effect, eliminate the impact of annular space stream, prolong the Oil/gas Well Production Life, be applicable to the strong limit of non-homogeneity/horizontal well adaptive equalization control valve that end aqueous hydrocarbon is hidden.
The purpose of this utility model is achieved through the following technical solutions: horizontal well adaptive equalization control valve, it comprises parent tube, restriction choke and the control valve exterior ring cap that is connected the parent tube outside and connects successively, control valve valve seat and screen casing, screen casing is with the parent tube matched in clearance, control valve exterior ring cap and control valve valve seat all with the parent tube interference fit, be provided with the A of airtight chamber between control valve exterior ring cap and the control valve valve seat, be provided with the chamber B that is communicated with screen casing in the control valve valve seat, be the end plate of control valve valve seat between the A of airtight chamber and the chamber B, parent tube is provided with the inlet opening, the inlet opening is communicated with the A of airtight chamber, restriction choke is installed on the end plate, restriction choke is provided with water inlet and delivery port, water inlet is positioned at chamber B, and delivery port is positioned at the A of airtight chamber.
Described restriction choke comprises valve ball, valve rod, spring, bellows, valve inside and close-connected restriction choke exterior ring cap successively, the restriction choke valve seat, inflating cells housing and inflating cells right end cap, water inlet and delivery port are located on the restriction choke valve seat, be provided with inflating cells in the inflating cells housing, be provided with air-filled pore in the inflating cells right end cap, air-filled pore is communicated with inflating cells, valve inside is installed in the air-filled pore, bellows is installed in the restriction choke valve seat, one end of bellows is fixedly connected on the end face of inflating cells housing, and bellows is communicated with the inflating cells of inflating cells housing, the other end of bellows is provided with sealing plate, spring housing is loaded on the outside of bellows, one end of spring presses on the end face of inflating cells housing, the other end of spring presses on the sealing plate, one end of valve rod is fixedly arranged on the sealing plate, and the other end of valve rod stretches out the restriction choke valve seat through delivery port, and valve ball is fixedly arranged on the end that valve rod stretches out restriction choke valve seat one end.
Circumferencial direction along parent tube on the described end plate is equipped with one, two, three or more restriction choke.
On the inflating cells right end cap in the described air-filled pore end outside plug is installed also.
Adopt between described control valve exterior ring cap and the control valve valve seat and be welded to connect.
All be threaded connection between described restriction choke exterior ring cap and restriction choke valve base chamber, restriction choke valve seat and inflating cells housing and between inflating cells housing and inflating cells right end cap.
The utlity model has following advantage: the utility model is can be in the down-hole according to the active control tool of the automatic adjusting joint drift angle of production profile, greatly improved the equilibrium control effect of horizontal well injection production profile, the recovery ratio of the well control reservoir processed that is conducive to improve the standard.
The utility model can balanced production profile, postpones gas/water breakthrough, eliminates toe with effect, eliminates the impact of annular space stream, prolongs the Oil/gas Well Production Life.
The utility model is provided with restriction choke in valve body, package in the restriction choke and spring are according to uninterrupted automatic regulating valve mouth aperture, realize the throttling of Self Adaptive Control valve, this structure be not only applicable to conventional oil recovery control tool applicable the known stratum of permeability, especially be applicable to the stratum of permeability the unknown, control water effect will be better than passive-type control water conservancy project tool far away.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of restriction choke of the present utility model
Among the figure, 1-parent tube, 2-restriction choke, 3-control valve exterior ring cap, 4-control valve valve seat, the 5-screen casing, the A of 6-airtight chamber, 7-chamber B, 8-end plate, the 9-inlet opening, 10-water inlet, 11-delivery port, 12-valve ball, the 13-valve rod, 14-spring, 15-bellows, 16-valve inside, 17-restriction choke exterior ring cap, 18-restriction choke valve seat, 19-inflating cells housing, 20-inflating cells right end cap, the 21-inflating cells, 22-air-filled pore, 23-sealing plate, 24-plug.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, horizontal well adaptive equalization control valve, it comprises parent tube 1, restriction choke 2 and the control valve exterior ring cap 3 that is connected parent tube 1 outside and connects successively, control valve valve seat 4 and screen casing 5, screen casing 5 is with parent tube 1 matched in clearance, control valve exterior ring cap 3 and control valve valve seat 4 all with parent tube 1 interference fit, adopt between described control valve exterior ring cap 3 and the control valve valve seat 4 and be welded to connect, be provided with the A6 of airtight chamber between control valve exterior ring cap 3 and the control valve valve seat 4, the A6 of airtight chamber is by control valve exterior ring cap 3, control valve valve seat 4 and parent tube 1 surround, be provided with the chamber B7 that is communicated with screen casing 5 in the control valve valve seat 4, chamber B7 is formed by control valve valve seat 4 and parent tube 1, it is the end plate 8 of control valve valve seat 4 between the A6 of airtight chamber and the chamber B7, parent tube 1 is provided with inlet opening 9, inlet opening 9 is communicated with the A6 of airtight chamber, and restriction choke 2 is installed on the end plate 8, and restriction choke 2 is provided with water inlet 10 and delivery port 11, water inlet 10 is positioned at chamber B7, and delivery port 11 is positioned at the A6 of airtight chamber.
As shown in Figure 2, described restriction choke 2 comprises valve ball 12, valve rod 13, spring 14, bellows 15, valve inside 16 and close-connected restriction choke exterior ring cap 17 successively, restriction choke valve seat 18, inflating cells housing 19 and inflating cells right end cap 20, water inlet 10 and delivery port 11 are located on the restriction choke valve seat 18, be provided with inflating cells 21 in the inflating cells housing 19, inflating cells right end cap 20 is with the right-hand member sealing of inflating cells 21, be provided with air-filled pore 22 in the inflating cells right end cap 20, air-filled pore 22 is communicated with inflating cells 21, valve inside 16 is installed in the air-filled pore 22, bellows 15 is installed in the restriction choke valve seat 18, one end of bellows 15 is fixedly connected on the end face of inflating cells housing 19, and bellows 15 is communicated with the inflating cells 21 of inflating cells housing 19, the other end of bellows 15 is provided with sealing plate 23, thereby the inner space of bellows 15, the inflating cells 21 of inflating cells housing 19 and jointly formed airtight by the air-filled pore 22 of the inflating cells right end cap 20 of valve inside 16 sealing, be filled with the package of gas, sealing plate 23 closely is connected with the end face of corrugated sheet, spring 14 is set in the outside of bellows 15, one end of spring 14 presses on the end face of inflating cells housing 19, the other end of spring 14 presses on the sealing plate 23, one end of valve rod 13 is fixedly arranged on the sealing plate 23, the other end of valve rod 13 stretches out the restriction choke valve seat through delivery port, and valve ball is fixedly arranged on the end that valve rod 13 stretches out restriction choke valve seat one end.
Can be according to actual needs on end plate 8 circumferencial direction along parent tube 1 one, two, three or more restriction choke 2 are installed.
On the inflating cells right end cap 20 in the described air-filled pore 22 terminal outsides plug 24 is installed also, can plays the seal protection effect to valve inside 16, improved the stability of device and the ability of the abominable working environment of adaptation.
18 of described restriction choke exterior ring cap 17 and restriction choke valve seats, restriction choke valve seat 18 and 19 of inflating cells housings and inflating cells housing 19 and 20 of inflating cells right end caps all are threaded connection.
The course of work of the present utility model is as follows: reservoir fluid flows through screen casing 5, enter restriction choke valve seat 18 inside by the water inlet 10 of restriction choke 2 again behind the chamber B7 of ramp metering valve base 4, delivery port 11 by restriction choke valve seat 18 flows out the A6 of airtight chamber that enters control valve afterwards, enters parent tube 1 by inlet opening 9 again.Spring 14 in the restriction choke 2 and bellows 15 can elongate or shorten automatically according to the pressure reduction of the pressure in the package and restriction choke 2 interior outer fluids, and then by valve ball 12 motions with ovable valve stem 13 and valve rod 13 ends, realization reaches the purpose of throttling to the adjusting of valve port opening.
Claims (5)
1. horizontal well adaptive equalization control valve, it is characterized in that: it comprises parent tube (1), restriction choke (2) and the control valve exterior ring cap (3) that is connected parent tube (1) outside and connects successively, control valve valve seat (4) and screen casing (5), the same parent tube of screen casing (5) (1) matched in clearance, control valve exterior ring cap (3) and control valve valve seat (4) all with parent tube (1) interference fit, be provided with the A(6 of airtight chamber between control valve exterior ring cap (3) and the control valve valve seat (4)), be provided with the chamber B(7 that is communicated with screen casing (5) in the control valve valve seat (4)), the A(6 of airtight chamber) and chamber B(7) between be the end plate (8) of control valve valve seat (4), parent tube (1) is provided with inlet opening (9), inlet opening (9) and the A(6 of airtight chamber) be communicated with, restriction choke (2) is installed on the end plate (8), restriction choke (2) is provided with water inlet (10) and delivery port (11), water inlet (10) is positioned at chamber B(7), delivery port (11) is positioned at the A(6 of airtight chamber)
Described restriction choke (2) comprises valve ball (12), valve rod (13), spring (14), bellows (15), valve inside (16) and close-connected restriction choke exterior ring cap (17) successively, restriction choke valve seat (18), inflating cells housing (19) and inflating cells right end cap (20), water inlet (10) and delivery port (11) are located on the restriction choke valve seat (18), be provided with inflating cells (21) in the inflating cells housing (19), be provided with air-filled pore (22) in the inflating cells right end cap (20), air-filled pore (22) is communicated with inflating cells (21), valve inside (16) is installed in the air-filled pore (22), bellows (15) is installed in the restriction choke valve seat (18), one end of bellows (15) is fixedly connected on the end face of inflating cells housing (19), and bellows (15) is communicated with the inflating cells (21) of inflating cells housing (19), the other end of bellows (15) is provided with sealing plate (23), spring (14) is set in the outside of bellows (15), one end of spring (14) presses on the end face of inflating cells housing (19), the other end of spring (14) presses on the sealing plate (23), one end of valve rod (13) is fixedly arranged on the sealing plate (23), the other end of valve rod (13) stretches out restriction choke valve seat (18) through delivery port (11), and valve ball (12) is fixedly arranged on the end that valve rod (13) stretches out restriction choke valve seat (18) one ends.
2. horizontal well adaptive equalization control valve according to claim 1 is characterized in that: the upper circumferencial direction along parent tube (1) of described end plate (8) is equipped with one, two, three or more restriction choke (2).
3. horizontal well adaptive equalization control valve according to claim 1 is characterized in that: on the inflating cells right end cap (20) in the terminal outside of described air-filled pore (22) plug (24) is installed also.
4. horizontal well adaptive equalization control valve according to claim 1 is characterized in that: adopt between described control valve exterior ring cap (3) and the control valve valve seat (4) to be welded to connect.
5. horizontal well adaptive equalization control valve according to claim 1 is characterized in that: between described restriction choke exterior ring cap (17) and restriction choke valve seat (18), between restriction choke valve seat (18) and inflating cells housing (19) and all be threaded connection between inflating cells housing (19) and inflating cells right end cap (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605377 CN202914035U (en) | 2012-11-16 | 2012-11-16 | Adaptive equalization control valve of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605377 CN202914035U (en) | 2012-11-16 | 2012-11-16 | Adaptive equalization control valve of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914035U true CN202914035U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605377 Expired - Fee Related CN202914035U (en) | 2012-11-16 | 2012-11-16 | Adaptive equalization control valve of horizontal well |
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| Country | Link |
|---|---|
| CN (1) | CN202914035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244075A (en) * | 2013-05-16 | 2013-08-14 | 西安石油大学 | Smart well interval control valve |
| CN107956430A (en) * | 2018-01-10 | 2018-04-24 | 中国海洋石油集团有限公司 | A kind of intelligent completion strings and its test method of going into the well suitable for land test well |
| CN114320244A (en) * | 2022-01-04 | 2022-04-12 | 西南石油大学 | Bidirectional different-channel gravel resistance-reducing filling and water-blocking acidizing tool |
-
2012
- 2012-11-16 CN CN 201220605377 patent/CN202914035U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244075A (en) * | 2013-05-16 | 2013-08-14 | 西安石油大学 | Smart well interval control valve |
| CN103244075B (en) * | 2013-05-16 | 2015-08-05 | 西安石油大学 | A kind of smart well interval control valve |
| CN107956430A (en) * | 2018-01-10 | 2018-04-24 | 中国海洋石油集团有限公司 | A kind of intelligent completion strings and its test method of going into the well suitable for land test well |
| CN107956430B (en) * | 2018-01-10 | 2023-07-04 | 中国海洋石油集团有限公司 | Intelligent well completion pipe string suitable for land test well and well logging test method thereof |
| CN114320244A (en) * | 2022-01-04 | 2022-04-12 | 西南石油大学 | Bidirectional different-channel gravel resistance-reducing filling and water-blocking acidizing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20131116 |