Oil recovery water control device
Technical field
The present invention relates to petroleum production engineering device technique field, be a kind of oil recovery water control device.
Background technology
During the digging construction operation of straight well or exceptional well, it is often necessary to according to stratum producing pressure differential to each section of oil well
Position carries out packing control water oil producing operation to prevent bottom water coning.This construction technology needs to use in pit shaft, prevents from executing in oil recovery
Bottom water coning during work industry.And the oil recovery water control device of routine is dependent on welding by parts and base tubes such as top connection, lower seal cylinders
Fixing connection, its Welding Structure easily makes the deformation of these key part structure cause seal failure.Meanwhile, the parts after welding
Become disposable extracting device of oil, it is impossible to carry out the change of physical dimension again, so cause cost up, conventional filter net device not
Can the effective series of problems such as oil strain.
Summary of the invention
The invention provides a kind of oil recovery water control device, overcome the deficiency of above-mentioned prior art, it can effectively solve often
The oil recovery water control device of rule is integral type structure, and critical component is yielding and causes seal failure, cost high and oil strain weak effect
Problem.
The technical scheme is that and realized by following measures: a kind of oil recovery water control device, including box cupling, upper close
Sealed tube, urceolus and base tube;Outside the upper end of base tube, the lower inside with box cupling is fixedly installed togather, in the upper outside of base tube
Being installed with top connection, the lower inside of top connection and the upper outside of upper seal bore are fixedly installed togather, at base tube
Upper outside is installed with lower seal cylinder, is provided with the first annular groove in the bottom of urceolus, the upper surface seat of the first annular groove under
In the outer rim of sealing drum, formed between base tube, upper seal bore, urceolus and lower seal cylinder and seal diversion cavity, base tube has at least
One pod apertures being connected with sealing diversion cavity;Snap ring on being fixedly connected with outside the middle part of base tube, at lower seal cylinder
Lower end is integrally fixed with the internal diameter lower shell more than lower seal cylinder internal diameter, and the lower inside at lower shell is provided with the second annular groove,
The upper surface seat of the second annular groove, in the outer rim of upper snap ring, forms Seal Oil between base tube, lower seal cylinder, lower shell and upper snap ring
Chamber, has at least one metering hole being connected with sealing diversion cavity and seal oil chamber on lower seal cylinder;Solid in the bottom of base tube
Determine connection and have lower snap ring, be installed with the most successively outside the base tube between upper snap ring and lower snap ring interior protection cylinder,
Inner filter screen, supporting network, outer filter and outer protection cylinder, at the liquid stream being provided with at least two axially outside of interior protection cylinder
Groove, has the liquid flow hole corresponding with spout on upper snap ring vertically, and liquid flow hole is connected with spout and seal oil chamber respectively
Logical, inlet opening is distributed on protection cylinder outside.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
The above-mentioned outer felt at interior protection cylinder is wound with wrapping wire.
Above-mentioned metering hole is the stepped hole that the big lower inner diameter of upper inner diameter is little, fixedly mounts current limiting on the top of metering hole
Cylinder.
The above-mentioned upper outside at base tube is provided with first annular mounting groove, is installed with first in first annular mounting groove
Spacing ring, the upper inner in top connection is integrally fixed with annular chuck, and the lower end seat of annular chuck is outside the first spacing ring
On edge upper surface;Upper outside at base tube is provided with the second annular mounting groove, is installed with second in the second annular mounting groove
Spacing ring, the lower end seat of upper seal bore is on the outer rim upper surface of the second spacing ring.
The above-mentioned lower outside at upper snap ring is provided with mounting groove on outer protection cylinder, and the upper inner at lower snap ring is provided with
Fixture block mounting groove, is provided with fixture block in fixture block mounting groove, is provided with under outer protection cylinder installation on the inwall of fixture block mounting groove
Groove, in the top and bottom of outer protection cylinder are respectively and fixedly installed on outer protection cylinder mounting groove and under outer protection cylinder in mounting groove,
Interior protection cylinder, inner filter screen, supporting network, outer it is installed with the most successively outside base tube between fixture block and upper snap ring
Metafiltration net;Or/and, there are external screw thread or female thread on the top of box cupling, have external screw thread or female thread in the lower end of base tube.
Above-mentioned box cupling and base tube are threadably secured and are installed together, and top connection and upper seal bore are threadably secured installation
Together, top connection and upper seal bore are fixedly installed togather by trip bolt;Or/and, between upper seal bore and base tube
Sealing ring is installed, sealing ring is installed between upper seal bore and urceolus, between lower seal cylinder and base tube, sealing is installed
Circle, lower seal cylinder and and urceolus between sealing ring is installed.
Present configuration is reasonable and compact, easy to use, by box cupling, upper seal bore, lower seal cylinder, urceolus, base tube, interior
Protection cylinder, inner filter screen, supporting network, outer filter and outer protection cylinder with the use of, it is achieved filter the purpose of stratum fluid, tool
There is oil strain effective, quick detachable and the feature of good sealing effect, facilitate operation, improve production efficiency, reduce and produce into
This.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of preferred embodiment regards broken section structural representation.
Accompanying drawing 2 is that the amplification of top half of the present invention is main regarding half section structural representation.
Accompanying drawing 3 is that the amplification of the latter half of the present invention is main regarding broken section structural representation.
It is box cupling that coding in accompanying drawing is respectively as follows: 1, and 2 is upper seal bore, and 3 is urceolus, and 4 is base tube, and 5 is top connection, and 6 are
Lower seal cylinder, 7 for sealing diversion cavity, and 8 is pod apertures, and 9 is upper snap ring, and 10 is lower shell, and 11 is seal oil chamber, and 12 is current limliting
Hole, 13 is lower snap ring, and 14 is interior protection cylinder, and 15 is inner filter screen, and 16 is supporting network, and 17 is outer filter, and 18 is outer protection cylinder,
19 is spout, and 20 is liquid flow hole, and 21 is inlet opening, and 22 is wrapping wire, and 23 are limited flow cartridge, and 24 is the first spacing ring, and 25 is annular
Chuck, 26 is the second spacing ring, and 27 is trip bolt.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specifically according to technical scheme and practical situation
Embodiment.
In the present invention, for the ease of describing, the description of the relative position relation of each parts is all according to Figure of description 1
Butut mode be described, such as: the position relationship of forward and backward, upper and lower, left and right etc. is based on the cloth of Figure of description 1
Figure direction determines.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in accompanying drawing 1,2,3, this oil recovery water control device includes box cupling 1, upper seal bore 2, urceolus 3 and base tube 4;Base tube 4
Upper end outside and the lower inside of box cupling 1 be fixedly installed togather, the upper outside at base tube 4 is installed with top connection 5,
The lower inside of top connection 5 and the upper outside of upper seal bore 2 are fixedly installed togather, the fixing peace of upper outside at base tube 4
Equipped with lower seal cylinder 6, being provided with the first annular groove in the bottom of urceolus 3, the upper surface seat of the first annular groove is in the outer rim of lower seal cylinder 6
On, between base tube 4, upper seal bore 2, urceolus 3 and lower seal cylinder 6 formed seal diversion cavity 7, base tube 4 has at least one with
Seal the pod apertures 8 that diversion cavity 7 is connected;Snap ring 9 it is fixedly connected with, in lower seal cylinder 6 times outside the middle part of base tube 4
End is integrally fixed with the internal diameter lower shell 10 more than lower seal cylinder 6 internal diameter, and the lower inside at lower shell 10 is provided with the second ring
Groove, the upper surface seat of the second annular groove is in the outer rim of upper snap ring 9, between base tube 4, lower seal cylinder 6, lower shell 10 and upper snap ring 9
Form seal oil chamber 11, lower seal cylinder 6 has at least one metering hole being connected with sealing diversion cavity 7 and seal oil chamber 11
12;It is fixedly connected with lower snap ring 13, in the bottom of base tube 4 outside the base tube 4 between upper snap ring 9 and lower snap ring 13 from inside to outside
It is installed with interior protection cylinder 14, inner filter screen 15, supporting network 16, outer filter 17 and outer protection cylinder 18 successively, in interior protection
The spout 19 being provided with at least two axially outside of cylinder 14, has corresponding with spout 19 on upper snap ring 9 vertically
Liquid flow hole 20, liquid flow hole 20 is connected with spout 19 and seal oil chamber 11 respectively, outside protection cylinder 18 on feed liquor is distributed
Hole 21.So, inner filter screen 15, supporting network 16 and outer filter 17 are easy to filter stratum fluid, make filter effect more preferable;Interior guarantor
Casing 14 and outer protection cylinder 18 play protection inner filter screen 15, supporting network 16 and the effect of outer filter 17.
According to actual needs above-mentioned oil recovery water control device can be made further optimization and/or improvements:
As shown in accompanying drawing 1,3, the outer felt at interior protection cylinder 14 is wound with wrapping wire 22.So, wrapping wire 22 is easy to preferably rise
To the effect filtering stratum fluid.
As shown in accompanying drawing 1,2, metering hole 12 is the stepped hole that the big lower inner diameter of upper inner diameter is little, on the top of metering hole 12
Fixed installation current limiting cylinder 23.Current limliting cylinder 23 is tungsten carbide current limliting cylinder, so, for fluid current limliting to prevent bottom water coning.
As shown in accompanying drawing 1,2, the upper outside at base tube 4 is provided with first annular mounting groove, at first annular mounting groove
Inside being installed with the first spacing ring 24, the upper inner in top connection 5 is integrally fixed with annular chuck 25, the lower end of annular chuck 25
Seat is on the outer rim upper surface of the first spacing ring 24;Upper outside at base tube 4 is provided with the second annular mounting groove, at the second ring
Being installed with the second spacing ring 26 in shape mounting groove, the lower end seat of upper seal bore 2 is on the outer rim upper surface of the second spacing ring 26.This
Sample, it is simple to top connection 5 and the installation and removal of upper seal bore 2.
As shown in accompanying drawing 1,2,3, the lower outside at upper snap ring 9 is provided with mounting groove on outer protection cylinder, at lower snap ring 13
Upper inner be provided with fixture block mounting groove, fixture block 27 is installed in fixture block mounting groove, the inwall of fixture block mounting groove sets
Be equipped with mounting groove under outer protection cylinder, in the top and bottom of outer protection cylinder 18 are respectively and fixedly installed on outer protection cylinder mounting groove and
Under outer protection cylinder in mounting groove, outside the base tube 4 between fixture block 27 and upper snap ring 9, it is installed with interior guarantor the most successively
Casing 14, inner filter screen 15, supporting network 16, outer filter 17;Or/and, there are external screw thread or female thread on the top of box cupling 1,
There are external screw thread or female thread in the lower end of base tube 4.So, it is simple to by interior protection cylinder 14, inner filter screen 15, supporting network 16, outer metafiltration
Net 17 and outer protection cylinder 18 are preferably fixedly installed togather, and prevent interior protection cylinder 14, inner filter screen 15, supporting network 16, outer layer
Filter screen 17 and outer protection cylinder 18 deform.
As shown in accompanying drawing 1,2,3, box cupling 1 and base tube 4 are threadably secured and are installed together, top connection 5 and upper seal bore 2
Being threadably secured and be installed together, top connection 5 and upper seal bore 2 are fixedly installed togather by trip bolt 27;Or/and,
Between upper seal bore 2 and base tube 4, sealing ring is installed, between upper seal bore 2 and urceolus 3, sealing ring is installed, under close
Between sealed tube 6 and base tube 4, sealing ring is installed, lower seal cylinder 6 and and urceolus 3 between sealing ring is installed.So, spiral shell is passed through
Stricture of vagina and trip bolt 27 are easily installed and dismantle;Make sealing effectiveness more preferable by sealing ring.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and most preferably implements effect
Really, non-essential technical characteristic can be increased and decreased according to actual needs, meet the demand of different situations.
The use process of preferred embodiment: during onsite application, according to each relevant parameter in on-the-spot stratum, by several
Invention is cascaded, and then connecting with other flow string string is lowered in well, down to design level position;When recovering the oil, in stratum
Fluid entered by the inlet opening 21 on outer protection cylinder 18, through outer filter 17, supporting network 16, inner filter screen 15 and wrapping wire 22
After filtration, flow through liquid flow hole 20, seal oil chamber 11, metering hole 12 successively by the spout 19 on interior protection cylinder 14, seal and lead
Stream chamber 7 and pod apertures 8 enter in the cavity of base tube 4.