CN205089285U - Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting - Google Patents
Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting Download PDFInfo
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- CN205089285U CN205089285U CN201520815294.3U CN201520815294U CN205089285U CN 205089285 U CN205089285 U CN 205089285U CN 201520815294 U CN201520815294 U CN 201520815294U CN 205089285 U CN205089285 U CN 205089285U
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- oil
- control valve
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- upper strata
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Abstract
The utility model relates to a prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting, should prevent flowing backward the control valve and process lower floor's oil oil inlet on the valve body, oily oil inlet in upper strata and oil -out, be provided with the pressure disk on the oil -out, processing had the oilhole on the pressure disk, oil reservoir passageway and last oil reservoir passageway under processing in the valve body, the end that produces oil of going up oil reservoir passageway and lower oil reservoir passageway is provided with the ball valve, it strains the ring to be provided with oil in the outside of the oily oil inlet in upper strata, utilize the oil pressure to back down the steel ball, realize the oil pumping, a layer phenomenon of flowing backward within a definite time appears when preventing to pump, utilize this combination tubular column of preventing flowing backward the control valve to need not the shutoff and can realize that different oil reservoirs recover the oil, effectively prevent to flow backward between the layer, the greatly reduced oil recovery degree of difficulty, the efficiency of recover the oil is improved, to prevent flowing backward the control valve setting between the oil -well pump and packer of combination tubular column, the utility model discloses a combination tubular column need not artifical shutoff in can once only going into the well down, uses manpower sparingly, but wide application and various oil recovery wells.
Description
Technical field
The utility model belongs to petroleum industry oil recovery technique field, is specifically related to oil field when dividing oil recovery, reverse-filling control valve and apply this reverse-filling control valve laminated distributor under well with adopting pipe string combination.
Background technology
At present, when the oil field later stage recovers the oil, when first floor oil reservoir energy reduces, when output reduces, need to open second, third layer of oil reservoir and recover the oil, if during single-string multi-zone production, new layer, old layer pressure are different, energy is different, and fluid is inevitable flows to energy low layer from energy high level, causes the fluid on extraction ground to reduce.In order to overcome this problem, technology usual is at present exactly that the oil reservoir lower to energy when oil production by layer carries out artificial shutoff, when former low energy layers energy raises or former high energy layers energy reduces, again to its plugged zone de-plugging, but, still exist in concrete oil recovery process between fluid subterranean layer and occur pouring in down a chimney phenomenon, recovery percent of reserves is caused to reduce, simultaneously underground work amount is large, technical difficulty is high, not easy to operate, when oil well plugging, cost is high, and labor strength is large, the oil well operation time is long, the low inferior problem of overall oil recovery efficiency.
Summary of the invention
In order to overcome the deficiency existing for prior art, the utility model provides a kind of can effectively preventing and pours in down a chimney generation between oil reservoir and the reverse-filling control valve of easy accessibility, reasonable in design.
Meanwhile, the utility model additionally provide a kind of above-mentioned reverse-filling control valve realize can layering with adopting, disposable under to enter in oil well and the layering that reverse-filling performance is good, oil recovery efficiency is high, maintenance cost is low with adopting reverse-filling combined string.
The utility model solves the problems of the technologies described above adopted technical scheme:
This reverse-filling control valve is processed with lower floor's oil oil-in, sidewall is radially processed with upper strata oil oil-in, oil-out is processed with at the other end of valve body, oil-out is provided with platen, platen is processed with oil-through hole, the lower oil reservoir passage that axially oily oil-in is through with lower floor is processed with in valve body, the upper oil reservoir passage through with upper strata oil oil-in is processed with in the outside of lower oil reservoir passage, upper oil reservoir passage and lower oil reservoir passage and the just right oil outlet end of platen are provided with ball valve, the oil filter ring be sleeved on valve outer wall is had in the arranged outside of upper strata oil oil-in.
Above-mentioned upper oil reservoir passage is 2 ~ 4, and is circumferentially evenly distributed same centered by the center line of following oil reservoir passage.
The cross section sum of above-mentioned upper oil reservoir passage is equal with the cross section of lower oil reservoir passage.
Above-mentioned upper oil reservoir passage is 1, and the internal diameter of upper oil reservoir passage is equal with the cross section of lower oil reservoir passage.
On the sidewall of above-mentioned oil filter ring, the position relative with upper strata oil oil-in is processed with sieve aperture, screening area sum ∑ S
iwith upper strata oil oil-in cross-sectional area S
abetween meet: ∑ S
i>=2S
a.
Above-mentioned sieve aperture is the bar shaped seam of linear cutter, and the width of bar shaped seam is 0.5 ~ 2mm.
Above-mentioned platen is connected by screw thread mode with valve body.
The aperture of above-mentioned oil-through hole is less than the steel ball size of ball valve.
Layering of the present utility model is with adopting reverse-filling combined string, comprise the oil pipe, oil well pump, packer, tubing centrilizer, screen casing and the plug that are interconnected from top to bottom, between oil well pump and packer, be provided with reverse-filling control valve, the lower floor of reverse-filling control valve oil oil-in is communicated with the oil-out of packer, oil-out is communicated with the oil-in of oil well pump.
Above-mentioned reverse-filling control valve is arranged on above oil reservoir, and packer is arranged between oil reservoir and lower oil reservoir.
Reverse-filling control valve of the present utility model is by lower floor's oil passage and upper strata oil channel separation, and adopt ball-valve structure at the oil outlet end of lower floor's oil passage and upper strata oil passage, oil pressure is utilized to be backed down by steel ball, realize oil pumping, after oil pumping completes, steel ball is got back on ball seat, prevent from occurring the phenomenon that interlayer pours in down a chimney during oil pumping, the platen of screwed connection is utilized effectively to prevent steel ball under oil shock from departing from valve body from oil-out, simultaneously, enter to prevent the impurity in upper oil reservoir, oil filter ring is installed outside the oil oil-in of upper strata, and ensure that oil filter ring does not affect oil-feed efficiency while impurity screening, utilize the combined string of this reverse-filling control valve can realize different oil reservoir without the need to shutoff to recover the oil, pour in down a chimney between effective preventing layer, greatly reduce oil recovery difficulty, improve oil recovery efficiency, extend tubing string application life, and the utility model reasonable in design, easy accessibility, maintenance cost is low, can disposable G.I.H, without the need to artificial shutoff, save manpower, can extensive use and various producing well.
Accompanying drawing explanation
Fig. 1 is that the layering of embodiment 1 is with adopting reverse-filling combined string structural representation.
Fig. 2 is the structural representation of reverse-filling control valve S in Fig. 1.
Fig. 3 is the structural representation of platen S1 in Fig. 2.
Fig. 4 is the structural representation of oil filter ring S4 in Fig. 2.
Detailed description of the invention
Now in conjunction with the accompanying drawings and embodiments the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
Embodiment 1
As shown in Figure 1, the layering of the present embodiment is be communicated with by oil pipe 1, oil well pump 2, reverse-filling control valve S, packer 3, tubing centrilizer 4, screen casing 5 and plug 6 to form with adopting reverse-filling combined string.
Wherein: oil pipe 1 and oil well pump 2 are threaded connection, the oil-in of oil well pump 2 and the oil-out of reverse-filling control valve S pass through threaded communication, the lower floor oil oil-in a of reverse-filling control valve S adopts screw thread mode to be connected with the oil-out of packer 3, packer 3 and tubing centrilizer 4, screen casing 5 and plug 6 connect from top to bottom successively, the oil pipe 1 of the present embodiment, oil well pump 2, packer 3, tubing centrilizer 4, screen casing 5 and plug 6 all belong to conventional model, during use, the lower floor oil oil-in a controlling reverse-filling control valve S is positioned at 18m place above the oil reservoir of upper strata, effectively prevent upper strata oil and lower floor oily between pour in down a chimney oil return, improve oil recovery efficiency, simultaneously, control packer 3 between upper strata is oily and lower floor is oily, and avoid production string box cupling.
As shown in Figure 2, the reverse-filling control valve S of the present embodiment is connected to form by valve body S5, platen S1, oil filter ring S4, lower floor oil ball valve S2 and upper strata oil ball valve S3.Specifically, the external diameter of this valve body S5 is 89mm, long is 275mm, employing stainless steel is made, the lower floor oil oil-in a exporting with packer 3 and mate is processed with in the lower end of valve body S5, in order to can with packer 3 screwed connection, lower floor oil oil-in a is processed with internal thread, oil-out is processed with in the upper end of valve body S5, and on oil-out end outer wall, be processed with the external screw thread mated with oil well pump 2, oil-out inwall is processed with internal thread, a platen S1 is fixed with by engagement thread in oil-out, see Fig. 3, this platen S1 is dismountable, platen S1 is processed with 5 circular oil-through holes, the aperture of oil-through hole is 14mm, centered by an oil-through hole, four oil-through holes are same outside it is circumferentially evenly distributed for all the other.Axially through with lower floor oil oil-in a lower floor's oil passage is processed with in valve body S5, lower floor's oil channel diameter is 16mm, the oil outlet end relative with platen S1 at lower floor's oil passage is processed as ball socket structure, the spherical radius of ball seat is 20mm, load onto the steel ball that diameter is 20mm within it, form lower floor oil ball valve S2.The valve body S5 sidewall of this enforcement is also processed with a radial upper strata oil oil-in b extended, the sidepiece of corresponding lower floor's oil passage in valve body S5 is also processed with a upper strata oily passage through with upper strata oil oil-in b, the diameter of this upper strata oil passage is equal with lower floor oily channel diameter, and the design of its port of export is also that passage oily with lower floor is identical, namely also ball socket structure is processed at the port of export of upper strata oil passage, and to be provided with a diameter on ball seat be the steel ball of 20mm, form upper strata oil ball valve S3, stopped by platen S1 when steel ball ejects by oil pressure effect, prevent steel ball from departing from.An oil filter ring S4 is fixed with in the outside screw thread mode of upper strata oil oil-in b, as shown in Figure 4, coarse filtration is carried out to upper strata oil, sieve aperture c processed by this oil filter ring S4 wall, this sieve aperture c is stitched by the bar shaped of linear cutter, the width of bar shaped seam is 1.7mm, and long is 24mm, and the area sum of bar shaped seam is 2 times of upper strata oil oil-in b cross section.
During use, reverse-filling control valve S prevents crude oil from pouring in down a chimney, packer 3 is close to the borehole wall and pit shaft is divided into upper and lower two parts, centralizer 4 ensures that combination is kept a grip on and is positioned in the middle part of pit shaft, reduces packer 3 radial force, and oil well pump 2 requires according to more than 9 meters, top oil reservoir according to oil recovery technique, screen casing 5, plug 6 are pressed oil recovery technique and are installed, when bottom oil layer recovers the oil, crude oil is entered by lower floor's oil oil-in of screen casing 5 from valve body S5, enters oil well pump by ball valve S2, platen S1; When top oil reservoir recovers the oil, crude oil enters valve body S5 upper strata oil oil-in, ball valve S3 by the sidewall filter ring S4 that oils, and enters oil well pump by platen S1; When upper and lower oil reservoir recovers the oil simultaneously, control valve S processes two passes and opens simultaneously.
Embodiment 2
The reverse-filling control valve S of the present embodiment is connected to form by valve body S5, platen S1, oil filter ring S4, lower floor oil ball valve S2 and upper strata oil ball valve S3.Specifically, the external diameter of this valve body S5 is 89mm, long is 275mm, employing stainless steel is made, the lower floor oil oil-in a exporting with packer 3 and mate is processed with in the lower end of valve body S5, in order to can with packer 3 screwed connection, lower floor oil oil-in a is processed with internal thread, oil-out is processed with in the upper end of valve body S5, and on oil-out end outer wall, be processed with the external screw thread mated with oil well pump 2, oil-out inwall is processed with internal thread, a platen S1 is fixed with by engagement thread in oil-out, this platen S1 is dismountable, platen S1 is processed with 3 circular oil-through holes, platen S1 is evenly distributed, the aperture of oil-through hole is 18mm.Center in valve body S5, axially be processed with the lower floor oil passage through with lower floor oil oil-in a, the diameter of lower floor's oil passage is 15mm, its central axis overlaps with the central axis of valve body S5, the oil outlet end relative with platen S1 at lower floor's oil passage is processed as ball socket structure, load onto the steel ball that diameter is 20mm within it, form ball valve.The middle part sidewall of valve body S5 is processed with 3 upper strata oil oil-in b, 3 upper strata oil oil-in b are evenly distributed on the outer wall of valve body S5, radial extension, corresponding, in valve body S5, the outside of lower floor's oil passage is processed with 3 upper strata oily passages through with upper strata oil oil-in b, the diameter of this upper strata oil passage is all 5mm, and its cross section sum is equal with the cross section of lower floor's oil passage.The port of export of the upper strata oil passage of the present embodiment is also processed into ball socket structure, its spherical radius is 8mm, it is the steel ball of 8mm that ball seat is provided with a diameter, an oil filter ring S4 is fixed with in the outside screw thread mode of upper strata oil oil-in b, this oil filter ring S4 wall is processed with the bar shaped seam of Linear cut, the width of bar shaped seam is 2mm, and long is 4.5mm, the upper strata oil oil-in b cross section that the area sum that bar shaped is stitched is greater than 2 times.
Other parts and annexation identical with embodiment 1.
Embodiment 3
The reverse-filling control valve S of the present embodiment is connected to form by valve body S5, platen S1, oil filter ring S4, lower floor oil ball valve S2 and upper strata oil ball valve S3.Specifically, the lower floor oil oil-in a exporting with packer 3 and mate is processed with in the lower end of valve body S5, lower floor oil oil-in a is processed with internal thread, oil-out is processed with in the upper end of valve body S5, and on oil-out end outer wall, be processed with the external screw thread mated with oil well pump 2, oil-out inwall is processed with internal thread, a platen S1 is fixed with by engagement thread in oil-out, this platen S1 is dismountable, platen S1 is processed with 8 circular oil-through holes, platen S1 is evenly distributed, and the aperture of oil-through hole is 5mm.Center in valve body S5, axially be processed with the lower floor oil passage through with lower floor oil oil-in a, the diameter of lower floor's oil passage is 16mm, its central axis overlaps with the central axis of valve body S5, the oil outlet end relative with platen S1 at lower floor's oil passage is processed as ball socket structure, load onto the steel ball that diameter is 20mm within it, form ball valve.The middle part sidewall of valve body S5 is processed with 4 upper strata oil oil-in b, 4 upper strata oil oil-in b are evenly distributed on the outer wall of valve body S5, radial extension, corresponding, in valve body S5, the outside of lower floor's oil passage is processed with 4 upper strata oily passages through with upper strata oil oil-in b, the diameter of this upper strata oil passage is all 4mm, and its cross section sum is equal with the cross section of lower floor's oil passage.The port of export of the upper strata oil passage of the present embodiment is also processed into ball socket structure, its spherical radius is 5mm, it is the steel ball of 5mm that ball seat is provided with a diameter, an oil filter ring S4 is fixed with in the outside screw thread mode of upper strata oil oil-in b, this oil filter ring S4 wall is processed with the bar shaped seam of Linear cut, the width of bar shaped seam is 0.5mm, and long is 3.8mm, is uniformly distributed along oil filter ring S4 sidewall.
Other parts and annexation identical with embodiment 1.
The number of the upper strata oil oil-in b in above-described embodiment 1 ~ 3 and upper strata oil passage can also be 2 or more, technician can select according to the valve body S5 size of reality and oil production, sieve aperture c on oil filter ring S4 also can be latticed or polygon-shaped, it mainly can play macrofiltration, in addition, oil pipe 1 in above-described embodiment, oil well pump 2, packer 3, tubing centrilizer 4, screen casing 5 and plug 6 etc. all belong to common components, its modular construction and connected mode etc. are not all elaborated, all can know to those skilled in the art.
Claims (10)
1. a reverse-filling control valve, it is characterized in that: be processed with lower floor's oil oil-in in one end of valve body (S5), sidewall is radially processed with upper strata oil oil-in, oil-out is processed with at the other end of valve body (S5), oil-out is provided with platen (S1), platen (S1) is processed with oil-through hole, the lower oil reservoir passage that axially oily oil-in is through with lower floor is processed with in valve body (S5), the upper oil reservoir passage through with upper strata oil oil-in is processed with in the outside of lower oil reservoir passage, upper oil reservoir passage and lower oil reservoir passage and the just right oil outlet end of platen (S1) are provided with ball valve, oil filter ring (S4) be sleeved on valve body (S5) outer wall is had in the arranged outside of upper strata oil oil-in.
2. reverse-filling control valve according to claim 1, is characterized in that: described upper oil reservoir passage is 2 ~ 4, and is circumferentially evenly distributed same centered by the center line of following oil reservoir passage.
3. reverse-filling control valve according to claim 2, is characterized in that: the cross section sum of described upper oil reservoir passage is equal with the cross section of lower oil reservoir passage.
4. reverse-filling control valve according to claim 1, is characterized in that: described upper oil reservoir passage is 1, and the internal diameter of upper oil reservoir passage is equal with the cross section of lower oil reservoir passage.
5. the reverse-filling control valve according to any one of Claims 1 to 4, is characterized in that: position relative with upper strata oil oil-in on the sidewall of described oil filter ring (S4) is processed with sieve aperture, screening area sum ∑ S
iwith upper strata oil oil-in cross-sectional area S
abetween meet: ∑ S
i>=2S
a.
6. reverse-filling control valve according to claim 5, is characterized in that: described sieve aperture is the bar shaped seam of linear cutter, and the width of bar shaped seam is 0.5 ~ 2mm.
7. reverse-filling control valve according to claim 6, is characterized in that: described platen (S1) is connected by screw thread mode with valve body (S5).
8. reverse-filling control valve according to claim 1, is characterized in that: the aperture of described oil-through hole is less than the steel ball size of ball valve.
9. a layering is with adopting reverse-filling combined string, comprise the oil pipe (1), oil well pump (2), packer (3), tubing centrilizer (4), screen casing (5) and the plug (6) that are interconnected from top to bottom, it is characterized in that: between oil well pump (2) and packer (3), be provided with reverse-filling control valve (S), the lower floor of reverse-filling control valve (S) oil oil-in is communicated with the oil-out of packer (3), oil-out is communicated with the oil-in of oil well pump (2);
The structure of described reverse-filling control valve (S) is: be processed with lower floor's oil oil-in in one end of valve body (S5), sidewall is radially processed with upper strata oil oil-in, oil-out is processed with at the other end of valve body (S5), oil-out is provided with platen (S1), platen (S1) is processed with oil-through hole, the lower oil reservoir passage that axially oily oil-in is through with lower floor is processed with in valve body (S5), the upper oil reservoir passage through with upper strata oil oil-in is processed with in the outside of lower oil reservoir passage, upper oil reservoir passage and lower oil reservoir passage and the just right oil outlet end of platen (S1) are provided with ball valve, oil filter ring (S4) be sleeved on valve body (S5) outer wall is had in the arranged outside of upper strata oil oil-in.
10. layering according to claim 9 is with adopting reverse-filling combined string, it is characterized in that: described reverse-filling control valve (S) is arranged on above oil reservoir, and packer (3) is arranged between oil reservoir and lower oil reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815294.3U CN205089285U (en) | 2015-10-20 | 2015-10-20 | Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815294.3U CN205089285U (en) | 2015-10-20 | 2015-10-20 | Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting |
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| Publication Number | Publication Date |
|---|---|
| CN205089285U true CN205089285U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520815294.3U Expired - Fee Related CN205089285U (en) | 2015-10-20 | 2015-10-20 | Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting |
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| CN (1) | CN205089285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221106A (en) * | 2015-10-20 | 2016-01-06 | 延长油田股份有限公司川口采油厂 | A kind of reverse-filling control valve and layering are with adopting reverse-filling combined string |
-
2015
- 2015-10-20 CN CN201520815294.3U patent/CN205089285U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221106A (en) * | 2015-10-20 | 2016-01-06 | 延长油田股份有限公司川口采油厂 | A kind of reverse-filling control valve and layering are with adopting reverse-filling combined string |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20211020 |