CN104453800A - Automatic water-controlling device for horizontal wells - Google Patents
Automatic water-controlling device for horizontal wells Download PDFInfo
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- CN104453800A CN104453800A CN201410756770.9A CN201410756770A CN104453800A CN 104453800 A CN104453800 A CN 104453800A CN 201410756770 A CN201410756770 A CN 201410756770A CN 104453800 A CN104453800 A CN 104453800A
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- water
- outlet channel
- liquid outlet
- horizontal well
- feed pathway
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Classifications
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- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
Abstract
The invention discloses an automatic water-controlling device for horizontal wells. The device comprises a central pipe and a sand prevention pipe fixedly sleeving the central pipe. A plurality of flow holes for water flowing through are arranged in the wall of the sand prevention pipe, a plurality of mounting holes are arranged in the wall of the central pipe, water-controlling valves are fixedly arranged in the mounting holes, the mounting holes are through holes; the axial center of each water-controlling valve is provided with a fluid channel, the fluid channel comprises an inlet channel and an outlet channel communicated with the bottom of the inlet channel, a first water-swelling and oil-shrinking valve ball is arranged in the inlet channel, a check-valve valve ball is arranged in the water outlet channel. The automatic water-controlling device for horizontal wells allows the management integration of water locating and plugging of high-water-cut horizontal wells, allows effective make-up for the deficiency of present main technology of water locating and plugging, allows shorter cycle of management measures of water locating and plugging of high-water-cut horizontal wells, allows higher efficiency of water-controlling measures and allows provision of new technological means and guarantee for scale and high-efficient development of horizontal wells.
Description
Technical field
The invention belongs to oil extraction in oil field technical field, be specifically related to a kind of horizontal well automatic water control device.
Background technology
At present, High water cut horizontal well is administered, mainly carry out horizontal well water exploration, water plugging of horizontal well measure, or control water completion tubular columns such as adjusting stream water-control sieve tube is carried out to bottom water reservoir specific aim, but generally there is long construction period, the inefficient problem of control water in these measures, the extensive Efficient Development of current horizontal well cannot be met, especially for the improvement of cased hole completion, low yield horizontal well, still there is no high efficiency control measures and method at present.
The representative means of horizontal well water exploration mainly contain liquid producing profile log water detection, Neutron Hydrogen activation test water detection and segmentation production test water detection.
Horizontal well liquid producing profile log water detection technology, be subject to the impact that turbine flowmeter starts the factor such as discharge capacity, horizontal well interval laminar flow, measuring accuracy is lower, and simultaneously for low-permeability oil deposit low production liquid horizontal well, technological adaptability still has much room for improvement;
Neutron Hydrogen activation test water detection technology requires high, to day production fluid 10m to horizontal well Liquid output
3during the examination of/below d well surveying, do not detect peak value, cannot make an explanation, this technology cannot be applied equally in low-permeability oil deposit, low discharge horizontal well;
In order to effectively solve low production liquid horizontal well water detection technical problem, research defines horizontal well in segments production test water detection technology, by water exit interval is determined in production, moisture chemical examination piecemeal, require lower to horizontal well Liquid output, but this technology is when multistage transforms water detection application on horizontal well, in the water detection cycle long (average 30-40 days/well), reduce horizontal well water exploration measure efficiency.
Water plugging of horizontal well mainly contains chemical water shutoff, mechanical packer blocking water.
So far, for horizontal well chemical water shutoff, because different oil reservoir, different completion mode horizontal well require harsh to chemical plugging agent, at present in blocking agent research and development, not yet occur ripe blocking agent product, especially for low-permeability oil deposit, horizontal well chemical plugging agent is still in research and development experimental stage.
Horizontal well machinery packer blocking aqueous phase is to simply, the supporting bridging plug of horizontal well machinery water blockoff, packer are developed at present, technology relative maturity, but for the measure of casing tube well-completion horizontal well machinery blocking water because water exit interval pressure is higher, cover outside tube water circumferential motion problem is usually there is after water blockoff, cause horizontal well machinery blocking water period of validity short, water plugging effect reduces.
Number of patent application is 200920173016 to disclose " a kind of flow string of horizontal well in segments control water ", the flow string of this horizontal well in segments control water is primarily of screen casing tubing string and oil pipe column composition, oil pipe column is in screen casing tubing string, by tail tube hanging packer, screen casing tubing string is suspended on the lower end of production string, screen casing tubing string has screen casing and blind pipe to connect into, and in the middle of screen casing and blind pipe, be connected with 2 ~ 4 groups meet water and meet oily swell packers, meet oily swell packers internal fixtion at chance water and have layered seal cylinder, well-flushing sealing drum is connected with in the bottom of screen casing tubing string, well-flushing circulating valve and well-flushing guide shoe, oil pipe column is that oil pipe is connected with insertion sealed device from top to bottom, insertion sealed device lower end connected pipes, the bottom of oil pipe is connected with pipe with holes, oil pipe and plug is connected with in the lower end of pipe with holes.The flow string of this horizontal well in segments control water, mainly for barefoot completion horizontal well, is controlled by net horizontal section recovery pressure balance, and realize control water, but this water control pipe post is complicated, its technological adaptability is limited.
Therefore, from current High water cut horizontal well Treatment process investigation situation, all there is certain limitation in horizontal well water exploration technology and water plugging of horizontal well technology, technology maturity, compliance still have much room for improvement; When the mode that employing is looked for simultaneously, water blockoff combines carries out High water cut horizontal well water-control oil-increasing, measure period is longer, efficiency reduces, and cannot meet the technology needs of current horizontal well scale development.
Summary of the invention
The object of the invention is by inventing a kind of horizontal well automatic water control device, by horizontal well water exploration, water-blocking operation organically combine, formed horizontal well look for, water blockoff integrated technique; Horizontal well automatic water control device is utilized automatically to sentence knowledge to the moisture situation of interval production fluid, regulable control interval production fluid enters the passage of oil pipe, realize the object automatically suppressing High water cut interval, the effectively low water-bearing interval of release, improve High water cut horizontal well control water measure efficiency, effect.
For this reason, the invention provides a kind of horizontal well automatic water control device, comprise the sand-proof pipe that central tube and fixed cover are located at central tube outside, the tube wall of sand-proof pipe offers multiple flowing hole passed through for liquid, the two ends of central tube are top connection for being connected with oil pipe and lower contact respectively, the tube wall of central tube offers multiple installing hole, and described installing hole internal fixtion is provided with water-control valve, and installing hole is through hole;
The axial centre of described water-control valve has provided fluid passage, fluid passage comprise feed pathway, with the liquid outlet channel be communicated with bottom feed pathway, the diameter of described feed pathway is greater than the diameter of liquid outlet channel, be provided with water-swellable in feed pathway, meet the first valve ball of oil contraction, be provided with ball-and-seat valve ball in liquid outlet channel, and described feed pathway is arranged on the one end near sand-proof pipe.
Described feed pathway by the first feed pathway be arranged on the spherical channel that the first feed pathway bottom is communicated with the first feed pathway and form, the first valve ball is positioned at spherical channel, and the diameter of spherical channel is greater than the diameter of the first feed pathway.
Described liquid outlet channel by the first liquid outlet channel be arranged on the second liquid outlet channel that the first liquid outlet channel top is communicated with the first liquid outlet channel and form, ball-and-seat valve ball is positioned at the first liquid outlet channel, and the second liquid outlet channel is communicated with spherical channel, the diameter of the second liquid outlet channel is less than the first liquid outlet channel.
The upper end of described water-control valve is embedded with the upper pressing cap of loop configuration, and the center of upper pressing cap is the first feed pathway, and the lower end of water-control valve is embedded with the lower pressing cap of loop configuration, and the center of lower pressing cap is the first liquid outlet channel;
Described upper pressing cap, lower pressing cap are coaxial with water-control valve respectively.
The two ends of described sand-proof pipe are connected to sand-proof pipe pressure ring, and sand-proof pipe and central tube are by being arranged on the rivet interlacement on sand-proof pipe pressure ring.
Described water-control valve is fixedly connected with central tube by screw thread.
Described first valve ball is resin valve ball.
Described water-control valve is 2 ~ 6.
The axis of described water-control valve centrally pipe is symmetrically arranged with two rows.
Beneficial effect of the present invention: this horizontal well automatic water control device provided by the invention, realizing High water cut horizontal well looks for water blockoff to administer integration, effectively compensate for that current main body horizontal well is looked for, the deficiency of water-plugging technique, shorten that High water cut horizontal well is looked for, the water blockoff control measures cycle, improve control water measure efficiency, for horizontal well scale Efficient Development provides new technological means and guarantee.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the sectional view of horizontal well automatic water control device.
Fig. 2 is the scheme of installation of horizontal well automatic water control device.
Fig. 3 is the schematic diagram of sand-proof pipe.
Fig. 4 is the sectional view of sand-proof pipe and central tube.
Fig. 5 is the schematic diagram of water-control valve.
Description of reference numerals: 1, top connection; 2, sand-proof pipe pressure ring; 3, rivet; 4, sand-proof pipe; 401, flowing hole; 5, water-control valve; 501, the first feed pathway; 502, spherical channel; 503, the first valve ball; 504, the first liquid outlet channel; 505, the second liquid outlet channel; 506, ball-and-seat valve ball; 507, upper pressing cap; 508, lower pressing cap; 6, central tube; 7, lower contact; 8, perforated interval; 9, packer; 10, horizontal well automatic water control device; 11, plug.
Detailed description of the invention
Below with reference to accompanying drawing, this horizontal well automatic water control device is described in further detail.
embodiment 1:
The invention provides a kind of horizontal well automatic water control device, as shown in Figure 1, comprise the sand-proof pipe 4 that central tube 6 and fixed cover are located at central tube 6 outside, as shown in Figure 3, the tube wall of sand-proof pipe 4 offers multiple flowing hole 401 passed through for liquid, the two ends of central tube 6 are top connection 1 for being connected with oil pipe and lower contact 7 respectively, and the tube wall of central tube 6 offers multiple installing hole, described installing hole internal fixtion is provided with water-control valve 5, and installing hole is through hole; The axial centre of described water-control valve 5 has provided fluid passage, fluid passage comprise feed pathway, with the liquid outlet channel be communicated with bottom feed pathway, the diameter of described feed pathway is greater than the diameter of liquid outlet channel, be provided with water-swellable in feed pathway, meet the first valve ball 503 of oil contraction, be provided with ball-and-seat valve ball 506 in liquid outlet channel, and described feed pathway is arranged on the one end near sand-proof pipe 4.
Concrete, horizontal well automatic water control device 10 is connected with oil pipe by screw thread, namely top connection 1 is connected with oil pipe respectively by screw thread with lower contact 7, as shown in Figure 2, horizontal well automatic water control device 10 is arranged on perforated interval 8, according to horizontal well perforation section 8 number, water breakthrough feature, the packer 9 of supporting varying number, in order to avoid high pressure water exit interval is to the suppression of low pressure pay interval or pour in down a chimney, net horizontal section packing is different pay intervals by packer 9, each pay interval correspondence places a set of horizontal well automatic water control device 10, namely the oil pipe between two often adjacent packers 9 is provided with a set of horizontal well automatic water control device 10, the left side of the packer 9 of high order end, a set of horizontal well automatic water control device 10 is installed, between the packer 9 of low order end and plug 11, a set of horizontal well automatic water control device 10 is installed.
It is to be noted, the production fluid of pay interval enters water-control valve 5 by the flowing hole 401 on sand-proof pipe 4, particularly, when horizontal well pay interval is High water cut interval, payzone production fluid enters the feed pathway of water-control valve 5, fully contacts with the first valve ball 503, first valve ball 503 water-swellable, close feed pathway, prevent production fluid to enter liquid outlet channel, effectively stop corresponding pay interval to produce water further and enter oil pipe; When horizontal well pay interval is low water-bearing interval, after payzone production fluid fully contacts with the first valve ball 503, first valve ball 503 is met oil and is shunk, and opens feed pathway, makes payzone production fluid by the first valve ball 503, flow into liquid outlet channel, and the ball-and-seat valve ball 506 flowed through in liquid outlet channel, finally enter in central tube 6, after each pay interval production fluid enters the central tube 6 of horizontal well automatic water control device 10, converge in Horizontal Well section oil pipe, be lifted to ground by oil well pump.First valve ball 503 is according to the moisture situation of the production fluid of each interval, and expansion or the contraction of different proportion occurs, and Control section production fluid is by the aperture of fluid course feed pathway to liquid outlet channel.
This horizontal well automatic water control device, organically combines horizontal well water exploration, water-blocking operation, and formation horizontal well is looked for, water blockoff integrated technique; Utilize water control device automatically to sentence knowledge to the moisture situation of interval production fluid, regulable control interval production fluid enters the passage of oil pipe, realizes the object automatically suppressing High water cut interval, the effectively low water-bearing interval of release, improves aqueous level well control water measure efficiency, effect.
embodiment 2:
On the basis of embodiment 1, it should be noted that, as shown in Figure 4 and Figure 5, described feed pathway by the first feed pathway 501 be arranged on the spherical channel 502 that the first feed pathway 501 bottom is communicated with the first feed pathway 501 and form, first valve ball 503 is positioned at spherical channel 502, and the diameter of spherical channel 502 is greater than the diameter of the first feed pathway 501.Described liquid outlet channel by the first liquid outlet channel 504 be arranged on the second liquid outlet channel 505 that the first liquid outlet channel 504 top is communicated with the first liquid outlet channel 504 and form, ball-and-seat valve ball 506 is positioned at the first liquid outlet channel 504, and the second liquid outlet channel 505 is communicated with spherical channel 502, the diameter of the second liquid outlet channel 505 is less than the first liquid outlet channel 504.
Concrete, the production fluid of pay interval enters water-control valve 5 by the flowing hole 401 on sand-proof pipe 4, particularly, when horizontal well pay interval is High water cut interval, payzone production fluid enters the first feed pathway 501 of water-control valve 5, then spherical channel 502 is entered, the first valve ball 503 is provided with in spherical channel 502, production fluid fully contacts with the first valve ball 503, first valve ball 503 water-swellable, close feed pathway, prevent production fluid to enter liquid outlet channel, effectively stop corresponding pay interval to produce water further and enter oil pipe; When horizontal well pay interval is low water-bearing interval, after payzone production fluid fully contacts with the first valve ball 503, first valve ball 503 is met oil and is shunk, open feed pathway, make payzone production fluid by the first valve ball 503, flow into the second liquid outlet channel 505, then the first liquid outlet channel 504 is flowed into, and the ball-and-seat valve ball 506 flowed through in the first liquid outlet channel 504, finally enter in central tube 6, after each pay interval production fluid enters the central tube 6 of horizontal well automatic water control device 10, converge in Horizontal Well section oil pipe, be lifted to ground by oil well pump.First valve ball 503 is according to the moisture situation of the production fluid of each interval, and expansion or the contraction of different proportion occurs, and Control section production fluid is by the aperture of fluid course feed pathway to liquid outlet channel.
embodiment 3:
On the basis of embodiment 1, in order to fix the first valve ball 503 and ball-and-seat valve ball 506, and ease of assembly, the upper end of described water-control valve 5 is embedded with the upper pressing cap 507 of loop configuration, the center of upper pressing cap 507 is the first feed pathway 501, the lower end of water-control valve 5 is embedded with the lower pressing cap 508 of loop configuration, and the center of lower pressing cap 508 is the first liquid outlet channel 504; Described upper pressing cap 507, lower pressing cap 508 are coaxial with water-control valve 5 respectively.
embodiment 4:
On the basis of embodiment 1, in order to fixing sand-proof pipe 4, the two ends of described sand-proof pipe 4 are connected to sand-proof pipe pressure ring 2, and sand-proof pipe 4 is connected by the rivet 3 be arranged on sand-proof pipe pressure ring 2 with central tube 6.Water-control valve 5 is fixedly connected with central tube 6 by screw thread.
embodiment 5:
On the basis of embodiment 1, it should be noted that, described first valve ball 503 is resin valve ball, ball-and-seat valve ball 506 is common steel ball, in addition, as shown in Figure 4, described water-control valve 5 is 2 ~ 6, and the axis of water-control valve 5 centrally pipe 6 is symmetrically arranged with two rows.
This horizontal well automatic water control device provided by the invention, realizing High water cut horizontal well looks for water blockoff to administer integration, effectively compensate for that current main body horizontal well is looked for, the deficiency of water-plugging technique, shorten that High water cut horizontal well is looked for, the water blockoff control measures cycle, improve control water measure efficiency, for horizontal well scale Efficient Development provides new technological means and guarantee.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (9)
1. a horizontal well automatic water control device, it is characterized in that: comprise central tube (6) and fixed cover and be located at the outside sand-proof pipe (4) of central tube (6), the tube wall of sand-proof pipe (4) offers multiple flowing hole (401) passed through for liquid, the two ends of central tube (6) are top connection (1) for being connected with oil pipe and lower contact (7) respectively, the tube wall of central tube (6) offers multiple installing hole, described installing hole internal fixtion is provided with water-control valve (5), and installing hole is through hole;
The axial centre of described water-control valve (5) has provided fluid passage, fluid passage comprise feed pathway, with the liquid outlet channel be communicated with bottom feed pathway, the diameter of described feed pathway is greater than the diameter of liquid outlet channel, be provided with water-swellable in feed pathway, meet first valve ball (503) of oil contraction, be provided with ball-and-seat valve ball (506) in liquid outlet channel, and described feed pathway is arranged on the one end near sand-proof pipe (4).
2. a kind of horizontal well automatic water control device as claimed in claim 1, it is characterized in that: described feed pathway by the first feed pathway (501) be arranged on the spherical channel (502) that the first feed pathway (501) bottom is communicated with the first feed pathway (501) and form, first valve ball (503) is positioned at spherical channel (502), and the diameter of spherical channel (502) is greater than the diameter of the first feed pathway (501).
3. a kind of horizontal well automatic water control device as claimed in claim 1, it is characterized in that: described liquid outlet channel by the first liquid outlet channel (504) be arranged on the second liquid outlet channel (505) that the first liquid outlet channel (504) top is communicated with the first liquid outlet channel (504) and form, ball-and-seat valve ball (506) is positioned at the first liquid outlet channel (504), and the second liquid outlet channel (505) is communicated with spherical channel (502), the diameter of the second liquid outlet channel (505) is less than the first liquid outlet channel (504).
4. a kind of horizontal well automatic water control device as claimed in claim 1, it is characterized in that: the upper end of described water-control valve (5) is embedded with the upper pressing cap (507) of loop configuration, the center of upper pressing cap (507) is the first feed pathway (501), the lower end of water-control valve (5) is embedded with the lower pressing cap (508) of loop configuration, and the center of lower pressing cap (508) is the first liquid outlet channel (504);
Described upper pressing cap (507), lower pressing cap (508) are coaxial with water-control valve (5) respectively.
5. a kind of horizontal well automatic water control device as claimed in claim 1, it is characterized in that: the two ends of described sand-proof pipe (4) are connected to sand-proof pipe pressure ring (2), sand-proof pipe (4) is connected by the rivet (3) be arranged on sand-proof pipe pressure ring (2) with central tube (6).
6. a kind of horizontal well automatic water control device as claimed in claim 5, is characterized in that: described water-control valve (5) is fixedly connected with central tube (6) by screw thread.
7. a kind of horizontal well automatic water control device as claimed in claim 1, is characterized in that: described first valve ball (503) is resin valve ball.
8. a kind of horizontal well automatic water control device as claimed in claim 1, is characterized in that: described water-control valve (5) is 2 ~ 6.
9. a kind of horizontal well automatic water control device as claimed in claim 8, is characterized in that: the axis that described water-control valve (5) centrally manages (6) is symmetrically arranged with two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410756770.9A CN104453800B (en) | 2014-12-11 | 2014-12-11 | A kind of horizontal well automatic water control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756770.9A CN104453800B (en) | 2014-12-11 | 2014-12-11 | A kind of horizontal well automatic water control device |
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| CN104453800A true CN104453800A (en) | 2015-03-25 |
| CN104453800B CN104453800B (en) | 2017-03-08 |
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| CN201410756770.9A Active CN104453800B (en) | 2014-12-11 | 2014-12-11 | A kind of horizontal well automatic water control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089543A (en) * | 2015-09-02 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal-well water pressure controlling device |
| CN106246143A (en) * | 2016-08-26 | 2016-12-21 | 中国石油化工股份有限公司 | The water control method of a kind of water outlet oil reservoir and control water sand control pipe thereof |
| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN108825183A (en) * | 2018-09-04 | 2018-11-16 | 成都北方石油勘探开发技术有限公司 | A kind of horizontal well automatic control water completion tubular column structure |
| CN109138937A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | Secondary stratification control water completion method for former sieve tube completion |
| CN112360387A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气股份有限公司 | Balanced production water control pipe column and method for casing completion horizontal well |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8096351B2 (en) * | 2007-10-19 | 2012-01-17 | Baker Hughes Incorporated | Water sensing adaptable in-flow control device and method of use |
| CN201771481U (en) * | 2010-08-23 | 2011-03-23 | 中国石油集团西部钻探工程有限公司 | Sieve tube water control device |
| CN103912240A (en) * | 2012-12-31 | 2014-07-09 | 托普威尔石油技术股份公司 | Oilfield oil-water well string internal control tool |
-
2014
- 2014-12-11 CN CN201410756770.9A patent/CN104453800B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089543A (en) * | 2015-09-02 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal-well water pressure controlling device |
| CN106246143A (en) * | 2016-08-26 | 2016-12-21 | 中国石油化工股份有限公司 | The water control method of a kind of water outlet oil reservoir and control water sand control pipe thereof |
| CN109138937A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | Secondary stratification control water completion method for former sieve tube completion |
| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN108397186B (en) * | 2018-01-31 | 2022-01-04 | 中国石油天然气股份有限公司 | Horizontal well temperature exciting water finding device and method |
| CN108825183A (en) * | 2018-09-04 | 2018-11-16 | 成都北方石油勘探开发技术有限公司 | A kind of horizontal well automatic control water completion tubular column structure |
| CN112360387A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气股份有限公司 | Balanced production water control pipe column and method for casing completion horizontal well |
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| CN104453800B (en) | 2017-03-08 |
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