CN2216588Y - Hydraulic pulse distributing tap for water distributor - Google Patents
Hydraulic pulse distributing tap for water distributor Download PDFInfo
- Publication number
- CN2216588Y CN2216588Y CN 94247775 CN94247775U CN2216588Y CN 2216588 Y CN2216588 Y CN 2216588Y CN 94247775 CN94247775 CN 94247775 CN 94247775 U CN94247775 U CN 94247775U CN 2216588 Y CN2216588 Y CN 2216588Y
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- CN
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- water
- water distribution
- chewed
- utility
- model
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- Expired - Fee Related
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a hydraulic pulse water regulating tap for a water regulator, which can be applied on the water regulator of the pipe column of a water injecting well in oilfields. According to that air flow can generate oscillation and to send out sound when the air flow passes through an organ pipe, the utility model is designed into an organ pipe type water regulating tap; arced basins (5, 7) are formed at the both ends of the utility model and the middle part is a fine passage 6. Through the water regulating tap, the flowing water can generate pressure pulse water waves which can have effect on blocked strata and can make mechanical impurities and other stemming loose and sloughing to obtain the goal of solving block. A low permeability oil layer can make the wetting angle of pore spaces change, decrease the flow resistance of fluid and can achieve the goal of increasing injection.
Description
The utility model relates on the oil-field flooding tubing string injection well downhole flow regulator water distribution to be chewed, and belongs to the waterpower pulse water distribution and chews.
The oil field well is in drilling well, completion, production and well workover process, and the stratum can be subjected to various pollutions, makes the permeability decrease on stratum, near wellbore zone.In addition, the permeability of many oil reservoirs itself is just poor.Recover the stratum, improve the important channel that reservoir permeability becomes volume increase.The methods such as acidifying, pressure break that the stratum is carried out that have are improved reservoir permeability, but that the shortcoming of these methods is selectivity is relatively poor, and construction is complicated, the cost height; Regular meeting brings new pollution and the obstruction of seam over the ground to oil reservoir simultaneously, directly influences the oil field development effect.Oil field development is adopted the scheme of limit exploitation marginal not water in order to realize high yield and stable yields.And at present on the water injection well tubing string injection well downhole flow regulator water distribution to chew be isometrical cavity, outlet again with chamber with the footpath, only play channeling, do not produce other effect, effect to oil reservoir (particularly low permeability pay) does not have de-plugging and decontaminates does not have positive role to accelerating oil field development.Adopt other unblocking and injection increasing technology, ubiquity construction technology complexity, the activity duration is long, and the expense height influences Oilfield developing.
It is not enough in the above-mentioned prior art that the purpose of this utility model is to avoid, and chews and be provided at a kind of waterpower pulse water distribution that can produce self-oscillation flow jet flow on the injection well downhole flow regulator, can improve the permeability of (change) oil reservoir, removes in the crack and stop up, and helps the oil field high yield.
It is according to pulse theory that the purpose of this utility model realizes, produces self-oscillation, can produce vibration as air-flow through organ pipe and sound, and designs the water distribution of organ tubular type and chews, and two ends form the arc basin, and the middle part is thin passage, and current are chewed through this water can produce pressure pulse.If the intrinsic frequency of thin passage (resonator) and the frequency of pressure excitement are complementary, can form resonance, form standing wave, eddy current becomes macrostructure separation annular flow in the jet shear layer, can improve the intensity of pressure oscillation, finally form continuous pressure pulse jet, can realize its purpose.
The two arc basins at above-mentioned Shui Zui two ends, outlet basin bore is greater than inlet basin bore, and the two is compared and can be 4: 3, and the former chews center lumen directly than can be 4 with water by bore; Export the basin bore simultaneously and directly match with the chamber of a cap of joining, the interior cavity length of silk cap is original more than 3 times.
The utility model compared with prior art can have following effect: owing to adopt the water distribution of organ tubular type to chew, current are chewed through this water, can produce pressure pulse stream, act on the blocked stratum, can make mechanical admixture and other obstruction loosening, brokenly fall and discharge, thereby reach the de-plugging effect; This compression wave affacts the stratum of low-permeability, the angle of wetting of oil reservoir hole is changed, thereby reduce the flow resistance of osmotic fluid, meanwhile, the solid particle, heavy ion and the out-phase drop that inject water are uniformly dispersed at water, be difficult for precipitation and attached on the oil reservoir hole wall, thereby reach anti-blocking purpose.
Fig. 1, the 2nd, the merogenesis figure of injection well downhole flow regulator;
Fig. 3, the 4th, Fig. 2 A-A, B-B sectional drawing;
Fig. 5 is that 3 sectional drawings are chewed in the utility model water distribution on Fig. 2;
Fig. 6 is that sectional drawing is chewed in former water distribution on Fig. 2.
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By Fig. 2 in conjunction with shown in Figure 1, injection well downhole flow regulator on the water injection well in oil fields tubing string, water distribution is housed on the injection well downhole flow regulator chews to the down-hole formation water filling, the utility model is the water distribution on the injection well downhole flow regulator 4 to be chewed 3 improve, make the two ends of injection well downhole flow regulator 3 form arc basin (5,7) mouth, the thin passage 6 (also can claim resonator) of middle part for being communicated with.
The entry and exit that 3 two ends arc basins (5,7) are chewed for water are chewed in above-mentioned water distribution, and the two bore is compared and be can be 4: 3, desirable 16 millimeters of the bore of arc basin 5, desirable 12 millimeters of the bore of basin 7; The bore of the former arc basin 5 and the chamber of passage 6 are directly than can be 4, and promptly the diameter of passage 6 is desirable 4 millimeters.It is consistent that the bore of arc basin 5 and the chamber of the cap 1 that joins match, and the chamber length of the cap 1 of proceeding from the reality is longer more than 3 times than original chamber, desirable 46 millimeters.The joint dress joint ring 2 that water distribution is chewed can be installed on injection well downhole flow regulator.
Claims (3)
1, the waterpower pulse water distribution is chewed on a kind of injection well downhole flow regulator, on the water injection well in oil fields tubing string injection well downhole flow regulator is arranged, and water distribution is housed on the injection well downhole flow regulator chews, and it is characterized in that: the two ends that (3) are chewed in water distribution form arc basin (5,7), and the middle part is thin passage (6).
2, waterpower pulse water distribution according to claim 1 is chewed, and it is characterized in that: arc basin (5,7) is chewed the access of (3) for water distribution, and the two bore is compared and be can be 4: 3, and the former bore and passage (6) chamber are directly than can be 4.
3, waterpower pulse water distribution according to claim 1 is chewed, and it is characterized in that: the bore of arc basin (5) directly matches with the chamber of the cap (1) that joins, and the long growth in the chamber of silk cap (1) is more than 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247775 CN2216588Y (en) | 1994-12-14 | 1994-12-14 | Hydraulic pulse distributing tap for water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247775 CN2216588Y (en) | 1994-12-14 | 1994-12-14 | Hydraulic pulse distributing tap for water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2216588Y true CN2216588Y (en) | 1996-01-03 |
Family
ID=33852906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94247775 Expired - Fee Related CN2216588Y (en) | 1994-12-14 | 1994-12-14 | Hydraulic pulse distributing tap for water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2216588Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472092A (en) * | 2009-08-18 | 2012-05-23 | 哈利伯顿能源服务公司 | Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well |
-
1994
- 1994-12-14 CN CN 94247775 patent/CN2216588Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472092A (en) * | 2009-08-18 | 2012-05-23 | 哈利伯顿能源服务公司 | Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well |
| CN102472092B (en) * | 2009-08-18 | 2015-07-22 | 哈利伯顿能源服务公司 | Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |