CN2698974Y - Setting control type water distributing device - Google Patents
Setting control type water distributing device Download PDFInfo
- Publication number
- CN2698974Y CN2698974Y CN 200420040871 CN200420040871U CN2698974Y CN 2698974 Y CN2698974 Y CN 2698974Y CN 200420040871 CN200420040871 CN 200420040871 CN 200420040871 U CN200420040871 U CN 200420040871U CN 2698974 Y CN2698974 Y CN 2698974Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- central tube
- injection well
- control piston
- flow regulator
- 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
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a setting control type water distributing device used in oil industry, being suitable to separate injection well. The utility model is provided with a core and a water nozzle. The outer part of the core is provided with a central pipe; the outer part of the central pipe is provided with the spring; two ends of the central pipe are connected with an upper joint and a lower joint; the lower part of the spring outside the central pipe is provided with a distribytion water valve assembly and a control piston assembly. Since the present distributor is designed with the control piston assembly and the distribution of water valve assembly, the requirements of packer setting and directly testing the sealing of a column jacket are satisfied. When going down a well, the water nozzle needed can be directly toted. Throwing and fishing a death core is not needed, therefore, the throwing and fishing work procedure are reduced, the requirement of manufacturing technique is satisfied, and the and the cost is reduced.
Description
Technical field
The utility model belongs to the underground water-injection instrument of petroleum industry, particularly sets the control type injection well downhole flow regulator, is applicable to separate water injection well.
Technical background
In petroleum industry, water filling is to keep stratum energy, realizes the main means of oil field development.For cooperating oil production by layer, take the mode of seperated layer water injection to replenish stratum energy usually.Realize seperated layer water injection by in water injection well, being lowered to the separate layer water injection string of forming by instruments such as packer, injection well downhole flow regulators to the stratum.Injection well downhole flow regulator is exactly the instrument of realizing to the stratum water filling, and its water distribution principle mainly is the needs according to the stratum injection allocation water yield, realizes the stratum water distribution is mainly used in the separate water injection well by the chock pressure difference before and after the control water nozzle.Oil field hollow movable injection well downhole flow regulator commonly used is common hollow distributor and rail mounted hollow distributor at present, and these two kinds of injection well downhole flow regulators have been brought into play important effect in oil field development, but have also exposed some problems.For common hollow distributor, assembling its inner chamber of back is to be in communication with the outside by the weep hole on water nozzle and the central tube, and the fluid pressure type packer of field use must be by squeezing into high pressure liquid in oil pipe, after forming certain pressure reduction inside and outside the oil pipe, just can set, for guaranteeing normally setting of packer, common hollow distributor need carry the water distributing core of no water nozzle when going into the well, also claim dead fuse, the injection well downhole flow regulator inner chamber and the external world are blocked, could realize normally setting of packer, set and carry out water filling after finishing, the fuse of need checkmating this moment is pulled out, drop into the water distributing core of band water nozzle, thereby increased the flow chart of the dead fuse of pulling, the work operations amount is big.And the rail mounted hollow distributor though solved the problem of the dead fuse operation of pulling, because it commutates by track, is closed the hydrophthalmia control injection well downhole flow regulator work on the injection well downhole flow regulator central tube, since the problem of oil field water quality, the easy fouling of tool surfaces.When the raceway surface fouling of injection well downhole flow regulator, regular meeting occur can not normal commutation problem, thereby cause the injection well downhole flow regulator cisco unity malfunction, need operation again to trip out tubing string.Simultaneously, find that in application the cushion rubber on the water distributing core easily comes off, and has reduced the functional reliability of injection well downhole flow regulator when carrying out pulling allotment operation.
Summary of the invention
The purpose of this utility model provides and sets the control type injection well downhole flow regulator, overcomes defective of the prior art, reduces flow chart, guarantees that packer normally sets, and reduces production costs.
Use the present technique solution can reach above-mentioned purpose: set the control type injection well downhole flow regulator, have fuse and water nozzle, outside core mounting center pipe, the outer mounting spring of central tube, two ends connect upper and lower joint.Water distribution valve assembly and control piston assembly are installed below the central tube outer spring.
The utility model compared with prior art has following significant effect:
1, designs control piston assembly and water distribution valve assembly, satisfied the needs of packer setting and direct access tube column sealing;
2, when packer setting, action of hydraulic force makes water distribution valve assembly be in closed condition all the time by the step on the central tube on water distribution valve assembly, guarantees the sealing of tubing string, packer is finished smoothly set;
3, adopt conical surface seal between valve body and the valve pocket, the sealing of tubing string when having improved well-flushing;
Can directly carry required water nozzle when 4, instrument is gone into the well and go into the well,, thereby reduce the pulling flow chart without the dead fuse of pulling;
5, the fuse seal designs is a monolithic, uses, down gland links together the generation of sealing ring case accident when having reduced the pulling operation with the rigid body of itself and fuse.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: top connection 1, adjustable ring 2, baffle ring 3, central tube 4, valve body 5, valve pocket 6, water nozzle 7, fuse 8, fuse seal 9, gland 10, control piston 11, shear pin 12, snap ring 13, lower contact 14, lower baffle ring 15
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, set the control type injection well downhole flow regulator, comprise fuse 8 and water nozzle 7, fuse 8 outside mounting center pipes 4, central tube 4 outer mounting spring, two ends connect upper and lower joint 1 and 14.Water distribution valve assembly and control piston assembly are installed below central tube 4 outer springs.Baffle ring 3 and adjustable ring 2 are installed in spring top, and spring is played fixing and regulating action.Water distribution valve assembly is made up of valve body 5 and valve pocket 6, valve body 5 internal diameters installing seal, and its external diameter bottom is that taper matches with the upper-end inner diameter of valve pocket 6; The internal diameter of valve pocket 6 is provided with step and boss, step inwall design sealing ring, and its boss snaps in the step place that central tube 4 is provided with water injection hole; Upper and lower and central tube 4 at valve pocket 6 steps form annular space, and the annular space of its below communicates with the water injection hole of central tube 4 and the water nozzle 7 on the fuse 8.Fuse seal 9 is installed between fuse 8 and central tube 4, and fuse seal 9 is the integral seals that formed by 1,2 of tubular seal connections or a plurality of sealing ring, in the groove of sealing ring and sealing ring formation gland 10 is installed.The section of diagram sealing ring is circular, also can be other shapes, as square, prismatic, triangle etc.Fuse 8 is split type cylindrical body, separates from the installation place of fuse seal 9, by screwed connection.The control piston assembly is made up of control piston 11, lower contact 14, snap ring 13 and lower baffle ring 15, and control piston 11 and lower baffle ring 15 are installed in outside the lower contact 14, and lower baffle ring 15 is installed in the below of control piston 11.The middle part internal diameter of lower contact 14 is provided with step, and central tube 4 is located on this step, and the structure of its top internal diameter matches with the structure of central tube 4 lower outer diameter; The bottom internal diameter of lower contact 14 is provided with radial direction through hole by step and the fuse 8 formation annular spaces of its middle part internal diameter on the lower case of lower contact 14, be provided with seal in the upper and lower of radial direction through hole.Control piston 11 is cylindrical body, and its internal diameter is provided with step and groove, and the internal diameter of control piston 11 matches with the external diameter of lower contact 14.Be provided with shear pin hole and snap ring mounting groove in the bottom of control piston 11 and the bottom of lower contact 14, interior dress shear pin 12 and snap ring 13, snap ring 13 are that an external diameter is the ring bodies of taper.Set the control type injection well downhole flow regulator when going into the well with water injection string, portability has the fuse 8 of water nozzle 7, and water distribution this moment valve assembly is in closed condition, and promptly valve body 5 is in sealing state with valve pocket 6.When set packer, in oil pipe, beat hydraulic pressure, hydraulic coupling is by the radial direction through hole in the lower contact 14, and just pressure transmission hole acts on the control piston 11, cuts off shear pin 12.Control piston 11 is descending, discharges water distribution valve assembly, and control piston 11 is tangled by snap ring 13 by the groove on the internal diameter.This moment, water distribution valve assembly was in closed condition under the effect of hydraulic coupling, and promptly valve body 5 still is in sealing state with valve pocket 6, thereby guaranteeing that packer can be finished smoothly sets.During water filling, under the effect of water injection pressure, water distribution valve assembly is opened, be that valve body 5 separates with valve pocket 6, the utility model is communicated with the water filling layer by water nozzle 7 and the water injection hole on the central tube 4 on the fuse 8, and water injection rate is controlled by the water nozzle on the fuse 87, thereby reaches the purpose of reasonable injection allocation.When carrying out anti-flushing well, well-flushing pressure acts on the end face of valve body 5, promotes the valve body 5 descending water distribution valve assemblies of closing, and promptly valve body 5 is in sealing state with valve pocket 6, guarantees normally carrying out of well-flushing work.When closing well stops annotating, water distribution valve assembly is closed under the effect of spring force, be that valve body 5 still is in sealing state with valve pocket 6, formation water can not enter oil pipe by the utility model, avoided interlayer to scurry mutually, simultaneously the packer between each layer is the effective packing in stratum, guaranteed that each water filling interlayer do not gang up mutually.
Claims (7)
1, sets the control type injection well downhole flow regulator, comprise fuse (8) and water nozzle (7), the outside mounting center pipe of fuse (8) (4), the outer mounting spring of central tube (4), two ends connect upper and lower joint (1) and (14), it is characterized in that in the below of central tube (4) outer spring water distribution valve assembly and control piston assembly being installed.
2, the control type injection well downhole flow regulator that sets according to claim 1 is characterized in that water distribution valve assembly is made up of valve body (5) and valve pocket (6), valve body (5) internal diameter installing seal, and its external diameter bottom is that taper matches with the upper-end inner diameter of valve pocket (6); The internal diameter of valve pocket (6) is provided with step and boss, step inwall design sealing ring, and its boss snaps in the step place that central tube (4) is provided with water injection hole; Upper and lower and central tube (4) at valve pocket (6) step form annular space, and the annular space of its below communicates with the water injection hole of central tube (4) and the water nozzle (7) on the fuse (8).
3, the control type injection well downhole flow regulator that sets according to claim 1, it is characterized in that between fuse (8) and central tube (4), installing fuse seal (9), fuse seal (9) is the integral seal that is formed by 1,2 of tubular seal connections or a plurality of sealing ring, in the groove of sealing ring and sealing ring formation gland (10) is installed.
4, the control type injection well downhole flow regulator that sets according to claim 1 is characterized in that fuse (8) is split type cylindrical body, separates from the installation place of fuse seal (9), by screwed connection.
5, the control type injection well downhole flow regulator that sets according to claim 1, it is characterized in that the control piston assembly is made up of control piston (11), lower contact (14), snap ring (13) and lower baffle ring (15), control piston (11) and lower baffle ring (15) are installed in outside the lower contact (14), and lower baffle ring (15) is installed in the below of control piston (11).
6, set the control type injection well downhole flow regulator according to claim 1 or 5, it is characterized in that the middle part internal diameter of lower contact (14) is provided with step, central tube (4) is located on this step, and the structure of its top internal diameter matches with the structure of central tube (4) lower outer diameter; The bottom internal diameter of lower contact (14) is provided with radial direction through hole by step and fuse (8) the formation annular space of its middle part internal diameter on the lower case of lower contact (14), be provided with seal in the upper and lower of radial direction through hole.
7, the control type injection well downhole flow regulator that sets according to claim 5 is characterized in that control piston (11) is a cylindrical body, and its internal diameter is provided with step and groove, matches with the external diameter of lower contact (14); Be provided with shear pin hole and snap ring mounting groove in the bottom of control piston (11) and the bottom of lower contact (14), interior dress shear pin (12) and snap ring (13); Snap ring (13) is that an external diameter is the ring bodies of taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040871 CN2698974Y (en) | 2004-05-27 | 2004-05-27 | Setting control type water distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040871 CN2698974Y (en) | 2004-05-27 | 2004-05-27 | Setting control type water distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2698974Y true CN2698974Y (en) | 2005-05-11 |
Family
ID=34774477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040871 Expired - Fee Related CN2698974Y (en) | 2004-05-27 | 2004-05-27 | Setting control type water distributing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2698974Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313755A (en) * | 2017-09-03 | 2017-11-03 | 盐城市金巨石油机械制造有限公司 | A kind of injection well downhole flow regulator external seal instrument and its application method |
-
2004
- 2004-05-27 CN CN 200420040871 patent/CN2698974Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313755A (en) * | 2017-09-03 | 2017-11-03 | 盐城市金巨石油机械制造有限公司 | A kind of injection well downhole flow regulator external seal instrument and its application method |
| CN107313755B (en) * | 2017-09-03 | 2023-07-21 | 盐城市金巨石油机械制造有限公司 | Water distributor external sealing tool and use method thereof |
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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 |