CN2550493Y - Hydraulic impact deblocking device for water injection well - Google Patents
Hydraulic impact deblocking device for water injection well Download PDFInfo
- Publication number
- CN2550493Y CN2550493Y CN 02214936 CN02214936U CN2550493Y CN 2550493 Y CN2550493 Y CN 2550493Y CN 02214936 CN02214936 CN 02214936 CN 02214936 U CN02214936 U CN 02214936U CN 2550493 Y CN2550493 Y CN 2550493Y
- Authority
- CN
- China
- Prior art keywords
- inner core
- water injection
- plunger
- assemblage
- injection well
- 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.)
- Expired - Fee Related
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a water power impact plug removal device of the water injection well for petroleum industry, which is suitable for various water injection wells of petroleum industry, and can compact the plugging water injection formation to remove the plug. The utility model is provided with a traveling valve, which is composed of a liquid inlet assembly and a liquid outlet assembly, the liquid inlet assembly and the liquid outlet assembly are connected and assembled by an inner cylinder. The water enters from the liquid inlet assembly and ejects from the liquid outlet assembly, so that the plug of the formation is removed by the water power impact. The utility model has the advantages of simple structure, low cost, convenient operation, multiple usages of a set of tool, big plug removal pressure, big spreading area in the radial direction of the water well, good plug removal effect and longer effective water injection period after a plug removal.
Description
Technical field
The utility model belongs to the oil production equipment of petroleum industry, and particularly a kind of water injection well hydro-impact broken down device is applicable to various water injection wells, and de-plugging is impacted on the water filling stratum of stopping up.
Technical background
In the waterflooding extraction process in oil field, water injection well is after long-term injecting water, because the influence of water quality, cause formation contaminant that well is stopped up near near wellbore zone or water injection hole gradually, cause water injection pressure constantly to rise, do not intake, can not bring into play the effect of displacement of reservoir oil by filling water until annotating.In order to reply the water injection capacity of well, must carry out de-plugging to the stratum of stopping up, present method for removing blockage mainly contains chemistry and two kinds of methods of physics.The general investment of chemical method is big, complex process, easily secondary pollution is caused on the stratum, the few application to the utmost aborning.Physical solution blocking method general technology is simple, small investment, can implement at any time individual well, uses to be progressively to enlarge trend.Chinese patent 99243846.2 " oil-water well negative pressure plugging removal and stimulation device " has been introduced a kind of impact plug-removing device that improves oil reservoir near wellbore zone seepage flow performance, its operating principle is that the negative pressure of vacuum that the use device cavity produces flows in the tubing string formation fluid stream in the stratum, and the dirt that will stop up stratum and oily discharge orifice road more from bottom to top is expelled to ground by oil pipe.This technology can effectively be dredged the obstruction of perforation position and its nearly portion, defective be removal of bridge formation radially radius is little, and the effect of negative pressure of vacuum very easily destroys near the skeleton on the stratum pit shaft.The physical solution block apparatus of oil-water well is still needed and is further improved.
Summary of the invention
The purpose of this utility model is to make a kind of water injection well hydro-impact broken down device; overcome defective of the prior art; the de-plugging radial extension on stratum is increased, the obstruction of effectively dredging perforation position, stratum and rimland thereof, near the skeleton on the stratum of protection is not damaged to greatest extent again.
The present technique solution can reach above-mentioned purpose: a kind of water injection well hydro-impact broken down device, have travelling valve, and to form by liquid inlet assemblage and liquid outlet assemblage, liquid inlet assemblage and liquid outlet assemblage are linked and packed by inner core.Water enters from liquid inlet assemblage, from the liquid outlet assemblage ejection, hydro-impact broken down is carried out on the stratum.
This device compared with prior art has following advantage and effect: when the up junction by urceolus and inner core of the travelling valve in the liquid inlet assemblage in the device, liquid in oil pipe and the casing annulus is flowed in the inner core by a plurality of radially inlet openings on the urceolus, and the liquid that forms one impact downwards flows, with the length of spring compressed in the liquid outlet assemblage, open standing valve, thereby open fluid hole, liquid stream passes through standing valve, fluid hole and perforated interval, the temporary impact stratum, the stratum that the pressure of the instantaneous liquid stream of this strand is enough to stop up presses off certain crack, thereby the increase formation porosity improves permeability.This apparatus structure is simple, Job Operations convenient, and manufacturing cost and use cost is low, and kit can repeatedly use.De-plugging pressure is big, and radially sweep area is big to well, and plugging removal effect is good, and a de-plugging can be kept effective flood period of long period.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: a kind of water injection well hydro-impact broken down device, be provided with travelling valve 8, this device is made up of liquid inlet assemblage and liquid outlet assemblage, and liquid inlet assemblage and liquid outlet assemblage are linked and packed by inner core 5.Inner core 5 is divided into two parts up and down for dividing body structure, connects with the screw thread assembling.Liquid inlet assemblage is made up of last split, plunger 7 and the travelling valve 8 of urceolus 2, tube connector 3, inner core 5, and travelling valve 8 is loaded in the plunger 7, and plunger 7 is installed in the last split of inner core 5, and tube connector 3 couples together plunger 7 and oil connection 1.Urceolus 2 is installed in outside at tube connector 3 and inner core 5, and urceolus 2, tube connector 3, plunger 7, inner core 5 are hollow tubular structures.The tube wall of urceolus 2 is provided with inlet opening or lead channel 4, be provided with between the split on plunger 7 and the inner core 5 sealing ring 6 several.Liquid outlet assemblage is made up of following split, standing valve 9, the spring 10 of inner core 5, and standing valve 9 and spring 10 are installed on the top of 5 times splits of inner core, and the bottom tube wall of inner core 5 is provided with fluid hole or liquid outlet groove 11.The power resources of this device are in the workover rig tractor hoist, this device is connected with oil pipe goes into the well, and are positioned the perforated interval of water injection well with packer.When carrying oil pipe on the tractor hoist, up in inner core 5 by the plunger 7 that oil connection 1 drive tube connector 3 is connected, this moment, travelling valve 8 and standing valve 9 were closed, when the up junction by urceolus 2 and inner core 5 of the travelling valve 8 of plunger 7 lower ends, liquid in oil pipe and the casing annulus is flowed in the inner core 5 by a plurality of radially inlet openings on the urceolus 24, and the liquid that forms one impact downwards flows, with spring 10 compressions, open standing valve 9, thereby open fluid hole 11, liquid stream is by standing valve 9, fluid hole 11 and perforated interval, the temporary impact stratum, the pressure of the instantaneous liquid stream of this strand presses off certain crack with the stratum of stopping up, thereby increases formation porosity, improves permeability.When tractor hoist is transferred tubing string, by tube connector 3, make plunger 7 descending in inner core 5, after plunger 7 passes through the radially inlet opening 4 of urceolus 2, inlet opening 4 is closed, at this moment, the travelling valve 8 of plunger 7 lower ends is opened, pressure in the inner core 5 descends rapidly, spring 10 resets standing valve 9 cuts out, and fluid hole 11 is closed immediately, and the residual liquid in plunger 7 bottom inner cores 5 drains in the oil pipe enter in the cavity of plunger 7 by the travelling valve of opening 8 on, flow in oil, the casing annulus, finish once-through operation.Said process can be realized stopping up the repeatedly hydro-impact broken down on stratum repeatedly.
Claims (5)
1, a kind of water injection well hydro-impact broken down device has travelling valve (8), it is characterized in that this device is made up of liquid inlet assemblage and liquid outlet assemblage, and liquid inlet assemblage and liquid outlet assemblage are linked and packed by inner core (5).
2, a kind of water injection well hydro-impact broken down device according to claim 1 is characterized in that inner core (5) for dividing body structure, is divided into two parts up and down, connects with the screw thread assembling.
3, a kind of water injection well hydro-impact broken down device according to claim 1, it is characterized in that liquid inlet assemblage is made up of last split, plunger (7) and the travelling valve (8) of urceolus (2), tube connector (3), inner core (5), travelling valve (8) is loaded in the plunger (7), plunger (7) is installed in the last split of inner core (5), and tube connector (3) couples together plunger (7) and oil connection (1); Urceolus (2) is installed outside tube connector (3) and inner core (5).
4, a kind of water injection well hydro-impact broken down device according to claim 2 is characterized in that urceolus (2), tube connector (3), plunger (7), inner core (5) are hollow tubular structures, and the tube wall of urceolus (2) is provided with inlet opening or lead channel (4); In plunger (7) and inner core (5) go up establish between the split sealing ring (6) several.
5, a kind of water injection well hydro-impact broken down device according to claim 1, it is characterized in that liquid outlet assemblage descends split, standing valve (9), spring (10) to form by inner core (5), standing valve (9) and spring (10) are installed on the top of split under the inner core (5), and the bottom tube wall of inner core (5) is provided with fluid hole or groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214936 CN2550493Y (en) | 2002-05-28 | 2002-05-28 | Hydraulic impact deblocking device for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214936 CN2550493Y (en) | 2002-05-28 | 2002-05-28 | Hydraulic impact deblocking device for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2550493Y true CN2550493Y (en) | 2003-05-14 |
Family
ID=33694163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214936 Expired - Fee Related CN2550493Y (en) | 2002-05-28 | 2002-05-28 | Hydraulic impact deblocking device for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2550493Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906952A (en) * | 2010-08-09 | 2010-12-08 | 北京奥瑞安能源技术开发有限公司 | Auxiliary circulatory chip returning device of production vertical well when the coalbed methane well generates radial hydraulically injection |
| CN110439508A (en) * | 2019-08-30 | 2019-11-12 | 东营市润腾油气技术有限公司 | Oil well negative pressure deblocking device and technique |
| CN111577237A (en) * | 2020-05-29 | 2020-08-25 | 中国海洋石油集团有限公司 | Water hammer composite fracturing process method for low-permeability oil field |
| CN116517506A (en) * | 2023-07-05 | 2023-08-01 | 山东成林石油工程技术有限公司 | Reciprocating rotary jet flow blocking remover and use method thereof |
-
2002
- 2002-05-28 CN CN 02214936 patent/CN2550493Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906952A (en) * | 2010-08-09 | 2010-12-08 | 北京奥瑞安能源技术开发有限公司 | Auxiliary circulatory chip returning device of production vertical well when the coalbed methane well generates radial hydraulically injection |
| CN101906952B (en) * | 2010-08-09 | 2012-12-19 | 北京奥瑞安能源技术开发有限公司 | Auxiliary circulatory chip returning device of production of vertical well when the coalbed methane well generates radially hydraulical jet |
| CN110439508A (en) * | 2019-08-30 | 2019-11-12 | 东营市润腾油气技术有限公司 | Oil well negative pressure deblocking device and technique |
| CN110439508B (en) * | 2019-08-30 | 2020-05-12 | 东营市润腾油气技术有限公司 | Oil well negative pressure blockage relieving device and process |
| CN111577237A (en) * | 2020-05-29 | 2020-08-25 | 中国海洋石油集团有限公司 | Water hammer composite fracturing process method for low-permeability oil field |
| CN116517506A (en) * | 2023-07-05 | 2023-08-01 | 山东成林石油工程技术有限公司 | Reciprocating rotary jet flow blocking remover and use method thereof |
| CN116517506B (en) * | 2023-07-05 | 2023-08-22 | 山东成林石油工程技术有限公司 | Reciprocating rotary jet flow blocking remover and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1407207A (en) | Shallow drill assembly with separate jet pump | |
| CN1190586C (en) | Hydro-impact broken down method and device for oil-water well | |
| CN2550493Y (en) | Hydraulic impact deblocking device for water injection well | |
| CN103806882B (en) | Liquid method and device is adopted in a kind of gaslift | |
| CN112240187A (en) | Sand washing, blockage removing and steam injecting tool | |
| CN212867518U (en) | Sand washing, blockage removing and steam injecting tool | |
| CN209817976U (en) | Continuous sand-discharging and blockage-removing process system for oil well and water well | |
| CN212389298U (en) | Mechanical vibration device for blockage removal, injection increase and oil increase through mechanical vibration | |
| CN103867161B (en) | Steam injection plugging valve | |
| CN212003039U (en) | Drill bit mud bag flushing assistor while drilling | |
| CN202832462U (en) | Blockage removing device capable of achieving layered acidification and negative-pressure acid discharge | |
| RU43907U1 (en) | ADJUSTABLE HYDRAULIC BOILER | |
| CN115324536B (en) | Screen pipe string for bidirectional conversion between filling operation and blockage removing operation and using method | |
| CN218407383U (en) | Dragging type annular packing-plugging agent injection integrated water plugging tool | |
| RU2186947C2 (en) | Device for well cleaning | |
| CN1372067A (en) | Method for thermal producing ultrathick oil by cyclic steam stimulation and special apparatus thereof | |
| CN111155953B (en) | Intelligent drilling while-drilling stuck releasing device | |
| CN2204850Y (en) | Underground pressure reducing, acid eliminating and blocking eliminator | |
| CN218509456U (en) | Bidirectional well-flushing blockage-removing pumping oil extraction device | |
| CN213574039U (en) | Physical blockage removing device for water injection well | |
| RU2789899C1 (en) | Method for cleaning the bottomhole formation zone of an injection well and a device for its implementation | |
| CN201027512Y (en) | Sand pumping device of oil-water well | |
| CN112824641B (en) | Integrated oil production process pipe column | |
| RU2713819C1 (en) | Bottom-hole fluid flow switch in well for various operating modes (embodiments) | |
| CN201310336Y (en) | Advance water-filled well injection pipe column device used for less permeable oilfields |
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 |