CN104389553A - Automatic phase selection control valve - Google Patents
Automatic phase selection control valve Download PDFInfo
- Publication number
- CN104389553A CN104389553A CN201410501115.9A CN201410501115A CN104389553A CN 104389553 A CN104389553 A CN 104389553A CN 201410501115 A CN201410501115 A CN 201410501115A CN 104389553 A CN104389553 A CN 104389553A
- Authority
- CN
- China
- Prior art keywords
- base tube
- end cover
- water
- control valve
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/32—Preventing gas- or water-coning phenomena, i.e. the formation of a conical column of gas or water around wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
Abstract
The invention discloses an automatic phase selection control valve. The automatic phase selection control valve comprises a base pipe (1); the outer portion of the base pipe (1) is sleeved with an end cover, an outer loop (3) and a screen pipe (4); a rotational flow restrictor (5) is arranged between the outer loop (3) and the base pipe (1); a lower end cover (7) of the rotational flow restrictor (5) is provided with a separation cavity (10) and a water storage cavity (12); a water nozzle (13) for being communicated with the water storage cavity (12) is arranged on the side wall of the separation cavity (10); and a base pipe liquid outlet (16) which is communicated with an oil nozzle (14) of the separation cavity (10) and a water outlet (15) of the water storage cavity (12) is formed in the base pipe (1). The automatic phase selection control valve has the beneficial effects that liquid can be differentiated to enable oil and water to be automatically separated; output of water is limited; the section is balanced, and the heel and toe effect is removed; the annular flow influence is removed, and the service life of an oil and gas well is prolonged; the recovery efficiency of a horizontal well control reservoir is improved; and the control valve is suitable for side/bottom water oil storage with the high heterogeneity.
Description
Technical field
The present invention relates to a kind of automatic control water instrument for oil exploitation, particularly a kind of cyclone-type selects control valve automatically mutually.
Background technology
Horizontal well, as an advanced technology of oil-gas field development, is widely used in thin layer reservoir, bottom water reservoir, fractured reservoir, heavy crude reservoir and ocean shallow water and deep water hydrocarbon Tibetan.Horizontal well development improves oil well output and oil field development economic benefit by expanding oil reservoir drainage area, because horizontal segment is very long, when the oil reservoir that exploitation homogeneous is single, the existence of pit shaft frictional resistance and unbalanced pressure reduction, make horizontal segment two ends fluid producing intensity high, middle fluid producing intensity is low, cause the contribution rate of each section of horizontal well very uneven, along with the passing of recovery time, the funneling effect of horizontal well is further obvious, form water ridge or gas ridge at horizontal segment top barometric gradient maximum, cause end water or pneumatic jack bore into; When developing heterogeneous body multilayered reservoir, because interlayer contradiction is given prominence to, more can aggravate end water or pneumatic jack bore into, the advantage of horizontal well can not be given full play to, causes the wasting of resources and fund waste.There is problems especially for horizontal well with bottom water reservoir exploitation, the phenomenon ubiquity that during bottom water coning causes rate of water cut increase fast, the low moisture oil recovery phase is short, has become the bottleneck that restriction horizontal well is produced.The technical barrier faced for current China horizontal well with bottom water reservoir and realistic problem, develop and have important practical significance by the control valve controlled for the purpose of production profile.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of can distinguish fluid, the restriction output of water, the profile of equilibrium, elimination toe with effect, eliminate Annular cutting impact, extend Oil/gas Well Production Life, be applicable to the strong limit/bottom water reservoir of non-homogeneity automatically select control valve mutually.
Object of the present invention is achieved through the following technical solutions: automatically select control valve mutually, it comprises base tube, base tube outside is set with end cap, exterior ring cap and screen casing successively along vertical direction, end cap and base tube compact siro spinning technology, the front end of exterior ring cap and the rear end compact siro spinning technology of end cap, the front end of screen casing is connected with the rear end of exterior ring cap, is provided with eddy flow restriction choke in the gap between exterior ring cap and base tube
Described eddy flow restriction choke comprises upper end cover and bottom end cover, the runner of prewhirling that bottom end cover is provided with inlet A and is communicated with inlet A, be positioned at the circular cavity that runner of prewhirling surrounds, circumferentially be distributed with multiple split cavity, the inlet B of split cavity is positioned at helical flow path, and the opening direction of inlet B is contrary with the flow direction of preswirl road inner fluid herein, the sidewall of split cavity and the sidewall of helical flow path surround water storage chamber, the sidewall of split cavity is provided with the (operating) water nozzle being communicated with split cavity and water storage chamber, the bottom of split cavity is provided with the oil burner nozzle being communicated with split cavity and bottom end cover lower end, the bottom of water storage chamber is provided with the delivery port being communicated with water storage chamber and bottom end cover lower end, it is interference fit between upper end cover and bottom end cover,
The external surface of eddy flow restriction choke fits tightly with the outer wall of base tube and the inwall of exterior ring cap respectively, base tube is provided with and is communicated with substrate tube space and the oil burner nozzle of eddy flow restriction choke and the base tube liquid outlet of delivery port.
Along base tube circumferencial direction, one, two, three or more eddy flow restriction choke are installed in gap between described exterior ring cap and base tube.
Described bottom end cover is provided with one or more inlet A.
Described prewhirl runner twist or annular.
The present invention has the following advantages:
Of the present inventionly can distinguish fluid, enable profit automatic shunt, the output of restriction water, the profile of equilibrium, eliminate toe with effect, elimination Annular cutting affects, extend Oil/gas Well Production Life, the recovery ratio of the well control reservoir that is conducive to improving the standard, is applicable to limit/bottom water reservoir that non-homogeneity is strong.
The present invention does not have moving component, only according to fluid properties and flow path, automatic shunt is carried out to profit, and limit the output of water, substantially increase the reliability of ramp metering device, also improve the Balance route effect of horizontal well production profile, the recovery ratio of the well control reservoir that is more conducive to improving the standard.
The present invention is provided with eddy flow restriction choke in the tool, have water-oil separating chamber in eddy flow restriction choke, realize the output automatically regulating profit, this structure is not only suitable for the oil well that water is not broken through, be particularly useful for the oil well that water has been broken through, control water effect will be better than other control water conservancy project tools far away.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is a kind of structural representation of eddy flow restriction choke of the present invention
Fig. 3 is a kind of structural representation of eddy flow restriction choke bottom end cover of the present invention
Fig. 4 is the sectional view of Fig. 2 along A-A cross section
Fig. 5 is the another kind of structural representation of eddy flow restriction choke of the present invention
Fig. 6 is the another kind of structural representation of eddy flow restriction choke bottom end cover of the present invention
Fig. 7 is the sectional view of Fig. 5 along B-B cross section
In figure, 1-base tube, 2-end cap, 3-exterior ring cap, 4-screen casing, 5-eddy flow restriction choke, 6-upper end cover, 7-bottom end cover, 8-inlet A, 9-prewhirl runner, 10-split cavity, 11-inlet B, 12-water storage chamber, 13-(operating) water nozzle, 14-oil burner nozzle, 15-delivery port, 16-base tube liquid outlet, 17-controls chamber.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Figure 1, automatically control valve is selected mutually, it comprises base tube 1, base tube 1 outside is set with end cap 2, exterior ring cap 3 and screen casing 4 successively along vertical direction, end cap 2 and base tube 1 compact siro spinning technology, in this enforcement, end cap 2 and base tube 1 are welded to connect, and be provided with sealing ring between the external surface of the circle tube inner wall of end cap 2 and base tube 1, the front end of exterior ring cap 3 and the rear end compact siro spinning technology of end cap 2, the front end of screen casing 4 is connected with the rear end of exterior ring cap 3, is provided with eddy flow restriction choke 5 in the gap between exterior ring cap 3 and base tube 1.
As Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, described eddy flow restriction choke 5 comprises upper end cover 6 and bottom end cover 7, the runner 9 of prewhirling that bottom end cover 7 is provided with inlet A8 and is communicated with inlet A8, prewhirl runner 9 in circular arc, thus guide the fluid entering runner 9 of prewhirling to do the flowing of circular arc track, be positioned at the circular cavity that runner 9 of prewhirling surrounds, circumferentially be distributed with multiple split cavity 10, the inlet B11 of described split cavity 10 is positioned at helical flow path, and the opening direction of inlet B11 is contrary with the flow direction of preswirl road 9 inner fluid herein, namely inlet B11 is contrary with the flow direction of runner 9 inner fluid of prewhirling, runner 9 inner fluid of prewhirling tangentially enters inlet B11, the cross section of the inwall of split cavity 10 is spiral yarn shaped, thus guide the fluid entering split cavity 10 to be still the flowing doing circular arc track, the sidewall of split cavity 10 and the sidewall of helical flow path surround water storage chamber 12, the sidewall of split cavity 10 is provided with the (operating) water nozzle 13 being communicated with split cavity 10 and water storage chamber 12, the bottom of split cavity 10 is provided with the oil burner nozzle 14 being communicated with split cavity 10 and bottom end cover 7 lower end, oil burner nozzle 14 runs through bottom end cover 7, be communicated with space outerpace and the split cavity 10 of bottom end cover 7 bottom, the bottom of water storage chamber 12 is provided with the delivery port 15 being communicated with water storage chamber 12 and bottom end cover 7 lower end, delivery port 15 runs through bottom end cover 7, be communicated with space outerpace and the water storage chamber 12 of bottom end cover 7 bottom, upper end cover 6 is covered in the top of bottom end cover 7, and be interference fit between upper end cover 6 and bottom end cover 7, good seal between upper end cover 6 and bottom end cover 7, thus the runner 9 that makes to prewhirl by means of only inlet A8 and ft connection, split cavity 10 by means of only oil burner nozzle 14 with ft connection, water storage chamber 12 by means of only delivery port 15 and ft connection.
As shown in Figure 1, fit tightly between the external surface of the bottom end cover 7 of eddy flow restriction choke 5 and the outer wall of base tube 1, ensure excellent sealing; The external surface of the upper end cover 6 of eddy flow restriction choke 5 and the inwall of exterior ring cap 3 fit tightly, and ensure excellent sealing; Base tube 1 is provided with and is communicated with base tube 1 inner space and the oil burner nozzle 14 of eddy flow restriction choke 5 and the base tube liquid outlet 16 of delivery port 15.
Along base tube 1 circumferencial direction, one, two, three or more eddy flow restriction choke 5 are installed in gap between exterior ring cap 3 and base tube 1.
The rear end of described end cap 2 has the cylindrical connecting portion of an external diameter reduction, the front end sleeve of exterior ring cap 3 is loaded on the cylindrical connecting portion of end cap 2 rear end, be interference fit between the external surface of the inner surface of exterior ring cap 3 and the cylindrical connecting portion of end cap 2 rear end, and be provided with sealing ring between the external surface of the cylindrical connecting portion of the inner surface of exterior ring cap 3 and end cap 2 rear end.
The rear end of described exterior ring cap 3 is provided with the groove for installing screen casing 4, and the front end of screen casing 4 is installed in the groove of exterior ring cap 3 rear end.
Exterior ring cap 3 and eddy flow restriction choke 5, base tube 1, screen casing 4 surround and control chamber 17.
Described bottom end cover 7 is provided with one or more inlet A8.As shown in Figure 2 and Figure 3, described bottom end cover 7 is provided with an inlet A8, and inlet A8 is positioned at the middle part of bottom end cover 7.Also can as shown in Figure 5, Figure 6, described bottom end cover 7 arranges two inlet A8, and two inlet A8 are divided into the both sides of bottom end cover 7, and two inlet A8 are all tangent with preliminary election runner.
Described prewhirl runner 9 twist or annular.As shown in Figure 3, describedly runner 9 is prewhirled twist; Also as shown in Figure 6, runner 9 can be prewhirled ringwise.
The course of work of the present invention is as follows: reservoir fluid is by entering by the inlet A8 of eddy flow restriction choke 5 runner 9 of prewhirling again after screen casing 4 ramp metering chamber 17, and liquid to obtain fully pre-supination and enters split cavity 10 by the inlet B11 of split cavity 10 prewhirling in runner 9.When pit shaft water is not broken through, oil is by directly flowing into base tube 1 by base tube liquid outlet 16 after oil burner nozzle 14 and (operating) water nozzle 13 throttling.When after water breakthrough, oil mixing with water liquid is divided into water layer and oil reservoir under the influence of centrifugal force, wherein water flows along split cavity 10 wall, and flow out from the (operating) water nozzle 13 of split cavity 10, realize first time throttling, after throttling, the flow velocity of water reduces, deceleration water enters water storage cavity room 12 after the (operating) water nozzle 13 of split cavity 10 flows out, base tube 1 is flow to by base tube liquid outlet 16 finally by after the throttling of delivery port 15 second time, oil enters base tube 1 by means of only after oil burner nozzle 14 throttlings by base tube liquid outlet 16, because the throttling number of times of oil is few compared with water, flow velocity after oil throttling is high compared with the flow velocity after water throttling, therefore comparatively to produce water speed fast for production rate, reach the object limiting aquatic product.
Claims (4)
1. automatically select control valve mutually, it is characterized in that: it comprises base tube (1), base tube (1) outside is set with end cap (2), exterior ring cap (3) and screen casing (4) successively along vertical direction, end cap (2) and base tube (1) compact siro spinning technology, the front end of exterior ring cap (3) and the rear end compact siro spinning technology of end cap (2), the front end of screen casing (4) is connected with the rear end of exterior ring cap (3), is provided with eddy flow restriction choke (5) in the gap between exterior ring cap (3) and base tube (1)
Described eddy flow restriction choke (5) comprises upper end cover (6) and bottom end cover (7), bottom end cover (7) is provided with inlet A(8) and with inlet A(8) runner of prewhirling (9) that is communicated with, be positioned at the circular cavity that runner of prewhirling (9) surrounds, circumferentially be distributed with multiple split cavity (10), the inlet B(11 of split cavity (10)) be positioned at helical flow path, and inlet B(11) opening direction contrary with the flow direction of preswirl road (9) inner fluid herein, the sidewall of split cavity (10) and the sidewall of helical flow path surround water storage chamber (12), the sidewall of split cavity (10) is provided with the (operating) water nozzle (13) being communicated with split cavity (10) and water storage chamber (12), the bottom of split cavity (10) is provided with the oil burner nozzle (14) being communicated with split cavity (10) and bottom end cover (7) lower end, the bottom of water storage chamber (12) is provided with the delivery port (15) being communicated with water storage chamber (12) and bottom end cover (7) lower end, be interference fit between upper end cover (6) and bottom end cover (7),
The external surface of eddy flow restriction choke (5) fits tightly with the outer wall of base tube (1) and the inwall of exterior ring cap (3) respectively, base tube (1) is provided with and is communicated with base tube (1) inner space and the oil burner nozzle (14) of eddy flow restriction choke (5) and the base tube liquid outlet (16) of delivery port (15).
2. according to claim 1ly automatically select control valve mutually, it is characterized in that: in the gap between described exterior ring cap (3) and base tube (1), along base tube (1) circumferencial direction, one, two, three or more eddy flow restriction choke (5) are installed.
3. according to claim 1ly automatically select control valve mutually, it is characterized in that: described bottom end cover (7) is provided with one or more inlet A(8).
4. according to claim 1ly automatically select control valve mutually, it is characterized in that: described runner of prewhirling (9) twist or annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501115.9A CN104389553B (en) | 2014-09-26 | 2014-09-26 | Automatically control valve is selected mutually |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501115.9A CN104389553B (en) | 2014-09-26 | 2014-09-26 | Automatically control valve is selected mutually |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389553A true CN104389553A (en) | 2015-03-04 |
| CN104389553B CN104389553B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410501115.9A Active CN104389553B (en) | 2014-09-26 | 2014-09-26 | Automatically control valve is selected mutually |
Country Status (1)
| Country | Link |
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| CN (1) | CN104389553B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929575A (en) * | 2015-05-26 | 2015-09-23 | 西南石油大学 | Phase-controlled valve |
| CN107288579A (en) * | 2017-08-02 | 2017-10-24 | 西南石油大学 | A kind of horizontal well automatic water control valve |
| CN107939350A (en) * | 2016-10-12 | 2018-04-20 | 中国石油化工股份有限公司 | Selectivity flows into controller and includes its completion tubular column |
| CN108756835A (en) * | 2018-06-13 | 2018-11-06 | 四川理工学院 | Baffling type control valve and well system |
| CN109138938A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | Adjust flow control water installations, pipe nipple, tubing string and two secondary control water completion methods |
| CN109138939A (en) * | 2018-10-24 | 2019-01-04 | 四川理工学院 | A kind of cyclone-type inflow control valve |
| CN111980660A (en) * | 2020-08-24 | 2020-11-24 | 西南石油大学 | Oil-water automatic separation inflow controller |
| CN112796732A (en) * | 2021-01-29 | 2021-05-14 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
| CN112855076A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
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| US4074763A (en) * | 1976-12-17 | 1978-02-21 | Chevron Research Company | Bottom-hole gas-liquid separator |
| CN2474217Y (en) * | 2001-03-27 | 2002-01-30 | 李桂喜 | High efficiency cyclon separator |
| CN2741633Y (en) * | 2004-11-19 | 2005-11-23 | 西南石油学院 | Oil-water separator |
| CN2928253Y (en) * | 2006-06-26 | 2007-08-01 | 中国石油天然气集团公司 | Oil-water separating swirler with Archimedes spiral inlet |
| US8985150B2 (en) * | 2011-05-03 | 2015-03-24 | Halliburton Energy Services, Inc. | Device for directing the flow of a fluid using a centrifugal switch |
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2014
- 2014-09-26 CN CN201410501115.9A patent/CN104389553B/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929575A (en) * | 2015-05-26 | 2015-09-23 | 西南石油大学 | Phase-controlled valve |
| CN107939350B (en) * | 2016-10-12 | 2020-03-31 | 中国石油化工股份有限公司 | Selective inflow controller and completion string incorporating same |
| CN107939350A (en) * | 2016-10-12 | 2018-04-20 | 中国石油化工股份有限公司 | Selectivity flows into controller and includes its completion tubular column |
| CN109138938A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | Adjust flow control water installations, pipe nipple, tubing string and two secondary control water completion methods |
| CN109138938B (en) * | 2017-06-28 | 2020-11-10 | 中国石油化工股份有限公司 | Flow regulating and water controlling device, short joint, tubular column and secondary water controlling well completion method |
| CN107288579A (en) * | 2017-08-02 | 2017-10-24 | 西南石油大学 | A kind of horizontal well automatic water control valve |
| CN107288579B (en) * | 2017-08-02 | 2019-08-23 | 西南石油大学 | A kind of horizontal well automatic water control valve |
| CN108756835A (en) * | 2018-06-13 | 2018-11-06 | 四川理工学院 | Baffling type control valve and well system |
| CN109138939A (en) * | 2018-10-24 | 2019-01-04 | 四川理工学院 | A kind of cyclone-type inflow control valve |
| CN111980660A (en) * | 2020-08-24 | 2020-11-24 | 西南石油大学 | Oil-water automatic separation inflow controller |
| CN112855076A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
| CN112855076B (en) * | 2021-01-20 | 2022-05-03 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
| CN112796732A (en) * | 2021-01-29 | 2021-05-14 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
| CN112796732B (en) * | 2021-01-29 | 2022-04-12 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
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| CN104389553B (en) | 2016-08-24 |
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