CN101915087B - Sieve tube water control device - Google Patents
Sieve tube water control device Download PDFInfo
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- CN101915087B CN101915087B CN 201010260028 CN201010260028A CN101915087B CN 101915087 B CN101915087 B CN 101915087B CN 201010260028 CN201010260028 CN 201010260028 CN 201010260028 A CN201010260028 A CN 201010260028A CN 101915087 B CN101915087 B CN 101915087B
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Abstract
The invention relates to the technical field of horizontal well oil extraction water control tools and discloses a sieve tube water control device. The sieve tube water control device comprises an oil collecting water control tube, a connecting core tube and a filtering device, wherein an oil collecting tube cavity is arranged inside the oil collecting water control tube, the lower end of the oil collecting water control tube is provided with a water control liquid inlet, the oil collecting water control tube is internally provided with an oil collecting channel which can be used for communicating the water control liquid inlet with the oil collecting tube cavity, an oil collecting water control valve which can lead petroleum to pass through and water to be blocked is installed on the oil collecting channel, the upper part of a cavity wall of the oil collecting tube cavity is provided with an upper connecting screw thread, and the lower part of the cavity wall of the oil collecting tube cavity is provided with a core tube fixing screw thread. The invention has reasonable and compact structure and convenient use; and the on-off state of the oil collecting channel is controlled through a water expansion rubber cylinder in the oil collecting water control valve. When a water cone forms and begins to flow water, the water expansion rubber cylinder expands and breaks the oil collecting channel, thereby being capable of completely stopping the generation of the water cone. The invention has the characteristics of safety and reliability as well as simplicity, convenience and high efficiency.
Description
Technical field
the present invention relates to horizontal well production control water conservancy project tool technical field, is a kind of sieve tube water control device.
Background technology
at present, in the horizontal well production process, due to the suffered swabbing pressure difference in each stratum of horizontal segment, non-homogeneity, fluid mobility difference and the other reasons of the primary and rear life in stratum, form current advantage passage in stratum, cause water cone, water breakthrough, water ridge to advance, had a strong impact on well recovery, and the control water conservancy project tool that the oil recovery of existing level well is used has the following disadvantages in actual use: can only delay the formation of water cone, can not stop its generation fully.
Summary of the invention
the invention provides a kind of sieve tube water control device, its control water conservancy project tool that has solved existing level well oil recovery use can only delay the formation of water cone, can not stop the problem of its generation fully.
technical scheme of the present invention realizes by following measures: a kind of sieve tube water control device comprises oil-collecting water control pipe, connection-core pipe and filter; There is the oil-collecting tube chamber inside of oil-collecting water control pipe, there is control water inlet the lower end of oil-collecting water control pipe, have in the body of oil-collecting water control pipe and can make to control the oil-collecting passage that the water inlet is connected with the oil-collecting tube chamber, be equipped with on the oil-collecting passage and can make oil pass through to meet the oil-collecting water-control valve of water blockage, upper connecting thread is arranged at the wall top, chamber of oil-collecting tube chamber, and core pipe retaining thread is arranged at the wall bottom, chamber of oil-collecting tube chamber; The top of connection-core pipe is arranged in the oil-collecting tube chamber and is fixed together by core pipe retaining thread and oil-collecting water control pipe, and there is lower connecting thread the outside, lower end of connection-core pipe, and the outside, middle part of connection-core pipe is equipped with filter; The lower end of the upper end of filter and oil-collecting water control pipe is fixed together, and delivery hole is arranged in the body of filter and can make filtered outside liquid enter control water inlet by delivery hole.
below the further optimization and/or improvements to the foregoing invention technical scheme:
above-mentioned oil-collecting passage can comprise shaft orientation liquid feeding hole, Axial-running Out oilhole, water-control valve hole and oil outlet radially; Have in the body of oil-collecting water control pipe and be no less than a pair of shaft orientation liquid feeding hole and Axial-running Out oilhole, the water-control valve hole is arranged on the side of oil-collecting water control pipe and shaft orientation liquid feeding hole and Axial-running Out oilhole can be communicated with, the oil-collecting water-control valve is installed in the water-control valve hole, the import in shaft orientation liquid feeding hole is control water inlet, and the outlet of Axial-running Out oilhole communicates with oil outlet radially.
the water-control valve hole of axis along oil-collecting water control pipe cross section flat-cut direction can be arranged on the side of above-mentioned oil-collecting water control pipe, in the oil-collecting water control pipe body of top, water-control valve hole, radially oil outlet can be arranged; The lower end import in shaft orientation liquid feeding hole is control water inlet, the upper end outlet in shaft orientation liquid feeding hole is connected with the inner import in water-control valve hole, the middle part vestibule in water-control valve hole is connected with the middle part vestibule of Axial-running Out oilhole, the lower end of Axial-running Out oilhole is positioned on the lower surface of oil-collecting water control pipe and is installed with plug, the outlet of the upper end of Axial-running Out oilhole is connected with the middle part vestibule of oil outlet radially, radially the outer end of oil outlet is installed with radially screw plug, and radially the inner of oil outlet outlet is connected with the oil-collecting tube chamber.
above-mentioned oil-collecting water-control valve can comprise piston head, piston rod, valve spring, inner pressure ring, water expansion packing element, outer press ring and water-control valve screw plug, the water-control valve hole outwards comprises intercommunicating pore, taper valve opening, packing element valve pocket hole, screw plug installing hole and bullport successively from the inner, the inner of intercommunicating pore is connected with the upper end in shaft orientation liquid feeding hole, the outer end of the intercommunicating pore taper valve opening large by little outer end, the inner is connected with the inner in packing element valve pocket hole, the outer end in packing element valve pocket hole is connected with the inner of screw plug installing hole, the outer end of screw plug installing hole is connected with the inner of bullport, the outer end of bullport is positioned on oil-collecting water control pipe lateral surface, and the upper end of Axial-running Out oilhole is connected with packing element valve pocket hole, being hemispheric piston head the inner holds out against on the inwall of taper valve opening and can keep sealing, piston head outer end and piston rod the inner are connected as a single entity, valve spring, inner pressure ring, water expansion packing element and the outer press ring of can water-swellable and blocking packing element valve pocket hole be positioned at packing element valve pocket hole, valve spring, inner pressure ring, water expansion packing element and outer press ring extremely are sleeved on piston rod outward by the inner successively, there is screw thread the outside of water-control valve screw plug is fixedly mounted in the screw plug installing hole, there is the stopper rod blind hole at the middle part of water-control valve screw plug, the outer end of piston rod is sleeved in the stopper rod blind hole and can moves along the stopper rod blind hole, the inner of valve spring holds out against on the piston head outer face, inner pressure ring is passed through in the outer end of valve spring, water expansion packing element and outer press ring hold out against on the inner face of water-control valve screw plug.
above-mentioned filter can comprise upper left snap ring, upper right snap ring, bottom left snap ring, bottom right snap ring and screen pipe; Upper annular groove is arranged at the top of connection-core pipe, and lower annular groove is arranged at the bottom of connection-core pipe, and upper left snap ring and upper right snap ring are fixedly mounted on connection-core pipe top by upper annular groove, and bottom left snap ring and bottom right snap ring are fixedly mounted on connection-core pipe bottom by lower annular groove; The front-end and back-end of upper left snap ring and the front-end and back-end of upper right snap ring are fixed together and form snap ring, the front-end and back-end of the front-end and back-end of bottom left snap ring and bottom right snap ring are fixed together and form lower snap ring, annular hydrops groove is arranged on the upper surface of upper snap ring, have in the body of upper snap ring and be no less than one and delivery hole vertically, the lower end import of delivery hole is positioned on the lower surface of snap ring, and the outlet of the upper end of delivery hole is positioned on the bottom surface of annular hydrops groove; There is the top sieve tube seat in the outside of upper snap ring, there is lower screen casing groove in the outside of lower snap ring, be distributed with the sieve aperture that can make screen pipe tube chamber be connected with screen pipe outside on the screen pipe, the upper and lower of screen pipe is set on top sieve tube seat and lower screen casing groove, the upper end of screen pipe and upper snap ring are fixed together, and the lower end of screen pipe and lower snap ring are fixed together; Form liquid storage cylinder between the outer wall of the inwall of screen pipe and connection-core pipe, liquid storage cylinder is connected with annular hydrops groove by delivery hole.
can there be wire screen in the outside of above-mentioned liquid storage cylinder, the intraluminal upper snap ring outer lower portion that is positioned at the screen pipe has upper wire screen fixed station shoulder, the intraluminal lower snap ring outer upper that is positioned at the screen pipe has diameter and upper wire screen fixed station to take on fixedly shoulder of corresponding lower wire screen, and the top and bottom of tubular wire screen are separately fixed at wire screen fixed station shoulder and lower wire screen fixedly on shoulder.
the outside of above-mentioned liquid storage cylinder can have and is no less than two-layer wire screen, the intraluminal upper snap ring outer lower portion that is positioned at the screen pipe has the big up and small down stair-stepping upper wire screen fixed station shoulder that is no less than two-stage, the intraluminal lower snap ring outer upper that is positioned at the screen pipe has and is up-small and down-big stepped and diameter and takes on fixedly shoulder of corresponding lower wire screen with upper wire screen fixed station respectively, and the top and bottom of tubular wire screen are separately fixed at upper wire screen fixed station shoulder that diameter is identical and lower wire screen fixedly on shoulder.
can there be the throttling counterbore at the middle part of above-mentioned radially oil outlet strangling head is installed, the inner of strangling head is sitting on the bottom surface of throttling counterbore, radially the inner of screw plug is pressed on the outer face of strangling head, the upper outside of strangling head has annular groove, the central upper portion of strangling head has the pressure regulation counterbore, the pressure regulation through hole be connected with the strangling head below is arranged on the bottom surface of pressure regulation counterbore, the top of strangling head has and is no less than one and pressure regulation radial hole that the pressure regulation counterbore is connected with annular groove, the lower outside of strangling head has seal groove and O-ring seal is installed, annular groove is connected with the upper end of Axial-running Out oilhole, annular groove is by the pressure regulation radial hole, pressure regulation counterbore and pressure regulation through hole are connected with the oil-collecting tube chamber.
reasonable and compact in structure of the present invention, easy to use, it controls the break-make of oil-collecting passage by the water expansion packing element in the oil-collecting water-control valve, when the water taper becomes to start water outlet, water expansion packing element expands and disconnects the oil-collecting passage, generate thereby can stop the water cone fully, there are characteristics safe and reliable, simple and effective.
The accompanying drawing explanation
accompanying drawing 1 is looked the broken section structural representation for the master of most preferred embodiment of the present invention.
accompanying drawing 2 is A-A place in accompanying drawing 1 analyses and observe the structure for amplifying schematic diagram.
accompanying drawing 3 is B-B place in accompanying drawing 1 analyses and observe the structure for amplifying schematic diagram.
accompanying drawing 4 is C-C place in accompanying drawing 1 analyses and observe the structure for amplifying schematic diagram.
accompanying drawing 5 is analysed and observe the structure for amplifying schematic diagram for the oil-collecting water control pipe in accompanying drawing 2 at the D-D place.
coding in accompanying drawing is respectively: 1 is the oil-collecting water control pipe, 2 is the connection-core pipe, 3 is the oil-collecting tube chamber, 4 is control water inlet, 5 is upper connecting thread, 6 is core pipe retaining thread, 7 is lower connecting thread, 8 is delivery hole, 9 is the shaft orientation liquid feeding hole, 10 is the Axial-running Out oilhole, 11 is the water-control valve hole, 12 is oil outlet radially, 13 is plug, 14 is screw plug radially, 15 is piston head, 16 is piston rod, 17 is valve spring, 18 is inner pressure ring, 19 is water expansion packing element, 20 is outer press ring, 21 is the water-control valve screw plug, 22 is intercommunicating pore, 23 is the taper valve opening, 24 is packing element valve pocket hole, 25 is the screw plug installing hole, 26 is bullport, 27 is the stopper rod blind hole, 28 is upper left snap ring, 29 is upper right snap ring, 30 is the bottom right snap ring, 31 is the screen pipe, 32 is upper annular groove, 33 is lower annular groove, 34 is annular hydrops groove, 35 is the top sieve tube seat, 36 is the screen pipe, 37 is sieve aperture, 38 is liquid storage cylinder, 39 is wire screen, 40 is upper wire screen fixed station shoulder, 41 is fixedly shoulder of lower wire screen, 42 is strangling head, 43 is annular groove, 44 is the pressure regulation counterbore, 45 is the pressure regulation through hole, 46 is the pressure regulation radial hole, 47 is seal groove.
The specific embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all to be described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
below in conjunction with most preferred embodiment and accompanying drawing, the invention will be further described:
as shown in accompanying drawing 1,5, this sieve tube water control device comprises oil-collecting water control pipe 1, connection-core pipe 2 and filter; There is oil-collecting tube chamber 3 inside of oil-collecting water control pipe 1, there is control water inlet 4 lower end of oil-collecting water control pipe 1, have in the body of oil-collecting water control pipe 1 and can make to control the oil-collecting passage that water inlet 4 is connected with oil-collecting tube chamber 3, be equipped with on the oil-collecting passage and can make oil pass through to meet the oil-collecting water-control valve of water blockage, upper connecting thread 5 is arranged at the wall top, chamber of oil-collecting tube chamber 3, and core pipe retaining thread 6 is arranged at the wall bottom, chamber of oil-collecting tube chamber 3; The top of connection-core pipe 2 is arranged in oil-collecting tube chamber 3 and by core pipe retaining thread 6 and oil-collecting water control pipe 1 and is fixed together, and there is lower connecting thread 7 outside, lower end of connection-core pipe 2, and the outside, middle part of connection-core pipe 2 is equipped with filter; The lower end of the upper end of filter and oil-collecting water control pipe 1 is fixed together, and delivery hole 8 is arranged in the body of filter and can make filtered outside liquid enter control water inlet 4 by delivery hole 8.By use, allow oil by meeting the oil-collecting water-control valve of water blockage, can stop the generation of water cone fully, reach the purpose of control water.
can according to actual needs, above-mentioned sieve tube water control device be made further optimization and/or improvements:
as shown in accompanying drawing 1,2,5, the oil-collecting passage comprises shaft orientation liquid feeding hole 9, Axial-running Out oilhole 10, water-control valve hole 11 and oil outlet 12 radially; Have in the body of oil-collecting water control pipe 1 and be no less than a pair of shaft orientation liquid feeding hole 9 and Axial-running Out oilhole 10, water-control valve hole 11 is arranged on the side of oil-collecting water control pipe 1 and shaft orientation liquid feeding hole 9 and Axial-running Out oilhole 10 can be communicated with, the oil-collecting water-control valve is installed in water-control valve hole 11, the import in shaft orientation liquid feeding hole 9 is control water inlet 4, and the outlet of Axial-running Out oilhole 10 communicates with oil outlet 12 radially.
as shown in accompanying drawing 1,2,5, the water-control valve hole 11 of axis along oil-collecting water control pipe 1 cross section flat-cut direction arranged on the side of oil-collecting water control pipe 1, in oil-collecting water control pipe 1 body of 11 tops, water-control valve hole, radially oil outlet 12 is arranged; The lower end import in shaft orientation liquid feeding hole 9 is control water inlet 4, the upper end outlet in shaft orientation liquid feeding hole 9 is connected with the inner import in water-control valve hole 11, the middle part vestibule in water-control valve hole 11 is connected with the middle part vestibule of Axial-running Out oilhole 10, the lower end of Axial-running Out oilhole 10 is positioned on the lower surface of oil-collecting water control pipe 1 and is installed with plug 13, the outlet of the upper end of Axial-running Out oilhole 10 is connected with the middle part vestibule of oil outlet 12 radially, radially the outer end of oil outlet 12 is installed with radially screw plug 14, and radially the inner of oil outlet 12 outlet is connected with oil-collecting tube chamber 3.It is for the ease of manufacturing processing that the lower end of Axial-running Out oilhole 10 is positioned on the lower surface of oil-collecting water control pipe 1, Axial-running Out oilhole 10 is actual, and what use is only upward to a section between oil outlet 12 radially from water-control valve hole 11, with after plug 13 shutoff, in that section Axial-running Out oilhole 10 of 11 belows, water-control valve hole, there is no mobile oil.
as shown in accompanying drawing 1,2, the oil-collecting water-control valve comprises piston head 15, piston rod 16, valve spring 17, inner pressure ring 18, water expansion packing element 19, outer press ring 20 and water-control valve screw plug 21, water-control valve hole 11 outwards comprises intercommunicating pore 22 successively from the inner, taper valve opening 23, packing element valve pocket hole 24, screw plug installing hole 25 and bullport 26, the inner of intercommunicating pore 22 is connected with the upper end in shaft orientation liquid feeding hole 9, the outer end of the intercommunicating pore 22 taper valve opening 23 large by little outer end, the inner is connected with the inner in packing element valve pocket hole 24, 24 outer end, packing element valve pocket hole is connected with the inner of screw plug installing hole 25, the outer end of screw plug installing hole 25 is connected with the inner of bullport 26, the outer end of bullport 26 is positioned on oil-collecting water control pipe 1 lateral surface, the upper end of Axial-running Out oilhole 10 is connected with packing element valve pocket hole 24, being hemispheric piston head 15 the inners holds out against on the inwall of taper valve opening 23 and can keep sealing, piston head 15 outer ends and piston rod 16 the inners are connected as a single entity, valve spring 17, inner pressure ring 18, water expansion packing element 19 and the outer press ring 20 of can water-swellable and blocking packing element valve pocket hole 24 be positioned at packing element valve pocket hole 24, valve spring 17, inner pressure ring 18, water expansion packing element 19 and outer press ring 20 extremely are sleeved on piston rod 16 outward successively by the inner, there is screw thread the outside of water-control valve screw plug 21 is fixedly mounted in screw plug installing hole 25, there is stopper rod blind hole 27 at the middle part of water-control valve screw plug 21, the outer end of piston rod 16 is sleeved in stopper rod blind hole 27 and can moves along stopper rod blind hole 27, the inner of valve spring 17 holds out against on piston head 15 outer faces, the outer end of valve spring 17 is by inner pressure ring 18, water expansion packing element 19 and outer press ring 20 hold out against on the inner face of water-control valve screw plug 21.The unidirectional inflow Axial-running Out of the pressure fluid that by the oil-collecting water-control valve, can make shaft orientation liquid feeding hole 9 send here oilhole 10, and because water expansion packing element 19 chance water can expand and block packing element valve pocket hole 24, thereby the generation that can stop the water cone fully reaches the purpose of controlling water.
as shown in accompanying drawing 1,4, filter comprises upper left snap ring 28, upper right snap ring 29, bottom left snap ring, bottom right snap ring 30 and screen pipe 31; Upper annular groove 32 is arranged at the top of connection-core pipe 2, lower annular groove 33 is arranged at the bottom of connection-core pipe 2, upper left snap ring 28 and upper right snap ring 29 are fixedly mounted on connection-core pipe 2 tops by upper annular groove 32, and bottom left snap ring and bottom right snap ring 30 are fixedly mounted on connection-core pipe 2 bottoms by lower annular groove 33; The front-end and back-end of the front-end and back-end of upper left snap ring 28 and upper right snap ring 29 are fixed together and form snap ring, the front-end and back-end of the front-end and back-end of bottom left snap ring and bottom right snap ring 30 are fixed together and form lower snap ring, annular hydrops groove 34 is arranged on the upper surface of upper snap ring, have in the body of upper snap ring and be no less than one and delivery hole vertically 8, the lower end import of delivery hole 8 is positioned on the lower surface of snap ring, and the outlet of the upper end of delivery hole 8 is positioned on the bottom surface of annular hydrops groove 34; There is top sieve tube seat 35 in the outside of upper snap ring, there is lower screen casing groove 36 in the outside of lower snap ring, be distributed with the sieve aperture 37 that can make screen pipe 31 tube chambers be connected with screen pipe 31 outsides on screen pipe 31, the upper and lower of screen pipe 36 is set on top sieve tube seat 35 and lower screen casing groove 36, the upper end of screen pipe 36 and upper snap ring are fixed together, and the lower end of screen pipe 36 and lower snap ring are fixed together; Form liquid storage cylinder 38 between the outer wall of the inwall of screen pipe 36 and connection-core pipe 2, liquid storage cylinder 38 is connected with annular hydrops groove 34 by delivery hole 8.The sieve aperture 37 that leads to filter sieve tubes 31 due to liquid storage cylinder 38 is connected with outside, extraneous oil or water can enter liquid storage cylinder 38, entered in annular hydrops groove 34 by delivery hole 8 by liquid storage cylinder 38 again, and can further enter in oil-collecting water control pipe 1 by control water inlet 4.
as shown in Figure 1, there is wire screen 39 in the outside of liquid storage cylinder 38, the intraluminal upper snap ring outer lower portion that is positioned at screen pipe 36 has upper wire screen fixed station shoulder 40, the intraluminal lower snap ring outer upper that is positioned at screen pipe 36 has diameter and upper wire screen fixed station to take on fixedly shoulder 41 of 40 corresponding lower wire screen, and the top and bottom of tubular wire screen 39 are separately fixed at wire screen fixed station shoulder 40 and lower wire screen fixedly on shoulder 41.Can improve the effect of filtration by wire screen 39.
as shown in Figure 1, the outside of liquid storage cylinder 38 has and is no less than two-layer wire screen 39, the intraluminal upper snap ring outer lower portion that is positioned at screen pipe 36 has the big up and small down stair-stepping upper wire screen fixed station shoulder 40 that is no less than two-stage, the intraluminal lower snap ring outer upper that is positioned at screen pipe 36 has and is up-small and down-big stepped and diameter and takes on fixedly shoulder 41 of 40 corresponding lower wire screen with upper wire screen fixed station respectively, and the top and bottom of tubular wire screen 39 are separately fixed at upper wire screen fixed station shoulder 40 that diameter is identical and lower wire screen fixedly on shoulder 41.Can further improve the effect of filtration by multilayer wire screen 39.
as accompanying drawing 1, shown in 3, radially there is the throttling counterbore at the middle part of oil outlet 12 strangling head 42 is installed, the inner of strangling head 42 is sitting on the bottom surface of throttling counterbore, radially the inner of screw plug 14 is pressed on the outer face of strangling head 42, the upper outside of strangling head 42 has annular groove 43, the central upper portion of strangling head 42 has pressure regulation counterbore 44, the pressure regulation through hole 45 be connected with strangling head 42 belows is arranged on the bottom surface of pressure regulation counterbore 44, the top of strangling head 42 has and is no less than one and pressure regulation radial hole 46 that pressure regulation counterbore 44 is connected with annular groove 43, the lower outside of strangling head 42 has seal groove 47 and O-ring seal is installed, annular groove 43 is connected with the upper end of Axial-running Out oilhole 10, annular groove 43 is by pressure regulation radial hole 46, pressure regulation counterbore 44 and pressure regulation through hole 45 are connected with oil-collecting tube chamber 3.Can regulate by strangling head 42 flow velocity and the pressure that enters liquid.
in addition, as shown in accompanying drawing 1,2,3, plug 13, radially there is respectively annular seal groove in the outside of screw plug 14 and water-control valve screw plug 21 sealing ring is installed near inner place, and plug 13, radially there is respectively binding groove the outer end of screw plug 14 and water-control valve screw plug 21.Sealing ring can prevent plug 13, radially screw plug 14 and water-control valve screw plug 21 place's leak liquid, by binding groove, can use screwdriver adjustment fastening plug 13, radially screw plug 14 and water-control valve screw plug 21.
above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the course of work of most preferred embodiment of the present invention is: at first, when completion, the present invention is assembled and is connected between sleeve pipe, in company with completion tubular column, together enter well, during completion, at the oil reservoir two ends, adopt packer to carry out packing; Then, when recovering the oil, normally go out oil under oil condition and can enter screen pipe 31 from sieve aperture 37, enter liquid storage cylinder 38 after the filtration of wire screen 39, enter annular hydrops groove 34 by delivery hole 8, then from annular hydrops groove 34 through control water inlets 4, shaft orientation liquid feeding hole 9, water-control valve hole 11, oil-collecting water-control valve, Axial-running Out oilhole 10, strangling head 42 and radially oil outlet 12 enter in oil-collecting tube chamber 3; Finally, after oil has been adopted, when the water taper becomes to start water outlet, the water expansion packing element 19 of oil-collecting water-control valve can stop up packing element valve pocket hole 24, shaft orientation liquid feeding hole 9 and Axial-running Out oilhole 10 are disconnected, and the internal and external channel of this interval is spaced, thereby reaches the control water to this stratum.
Claims (5)
1. a sieve tube water control device, is characterized in that comprising oil-collecting water control pipe, connection-core pipe and filter, there is the oil-collecting tube chamber inside of oil-collecting water control pipe, there is control water inlet the lower end of oil-collecting water control pipe, have in the body of oil-collecting water control pipe and can make to control the oil-collecting passage that the water inlet is connected with the oil-collecting tube chamber, be equipped with on the oil-collecting passage and can make oil pass through to meet the oil-collecting water-control valve of water blockage, upper connecting thread is arranged at the wall top, chamber of oil-collecting tube chamber, and core pipe retaining thread is arranged at the wall bottom, chamber of oil-collecting tube chamber, the top of connection-core pipe is arranged in the oil-collecting tube chamber and is fixed together by core pipe retaining thread and oil-collecting water control pipe, and there is lower connecting thread the outside, lower end of connection-core pipe, and the outside, middle part of connection-core pipe is equipped with filter, the lower end of the upper end of filter and oil-collecting water control pipe is fixed together, and delivery hole is arranged in the body of filter and can make filtered outside liquid enter control water inlet by delivery hole, wherein, the oil-collecting water-control valve comprises piston head, piston rod, valve spring, inner pressure ring, water expansion packing element, outer press ring and water-control valve screw plug, the water-control valve hole outwards comprises intercommunicating pore, taper valve opening, packing element valve pocket hole, screw plug installing hole and bullport successively from the inner, the inner of intercommunicating pore is connected with the upper end in shaft orientation liquid feeding hole, the outer end of the intercommunicating pore taper valve opening large by little outer end, the inner is connected with the inner in packing element valve pocket hole, the outer end in packing element valve pocket hole is connected with the inner of screw plug installing hole, the outer end of screw plug installing hole is connected with the inner of bullport, the outer end of bullport is positioned on oil-collecting water control pipe lateral surface, and the middle part vestibule of Axial-running Out oilhole is connected with packing element valve pocket hole, being hemispheric piston head the inner holds out against on the inwall of taper valve opening and can keep sealing, piston head outer end and piston rod the inner are connected as a single entity, valve spring, inner pressure ring, water expansion packing element and the outer press ring of can water-swellable and blocking packing element valve pocket hole be positioned at packing element valve pocket hole, valve spring, inner pressure ring, water expansion packing element and outer press ring extremely are sleeved on piston rod outward by the inner successively, there is screw thread the outside of water-control valve screw plug is fixedly mounted in the screw plug installing hole, there is the stopper rod blind hole at the middle part of water-control valve screw plug, the outer end of piston rod is sleeved in the stopper rod blind hole and can moves along the stopper rod blind hole, the inner of valve spring holds out against on the piston head outer face, inner pressure ring is passed through in the outer end of valve spring, water expansion packing element and outer press ring hold out against on the inner face of water-control valve screw plug, the oil-collecting passage comprises shaft orientation liquid feeding hole, Axial-running Out oilhole, water-control valve hole and oil outlet radially, have in the body of oil-collecting water control pipe and be no less than a pair of shaft orientation liquid feeding hole and Axial-running Out oilhole, the water-control valve hole is arranged on the side of oil-collecting water control pipe and shaft orientation liquid feeding hole and Axial-running Out oilhole can be communicated with, the oil-collecting water-control valve is installed in the water-control valve hole, the import in shaft orientation liquid feeding hole is control water inlet, and the outlet of Axial-running Out oilhole communicates with oil outlet radially.
2. sieve tube water control device according to claim 1, is characterized in that, on the side of oil-collecting water control pipe, the water-control valve hole of axis along oil-collecting water control pipe cross section flat-cut direction arranged, and in the oil-collecting water control pipe body of top, water-control valve hole, radially oil outlet arranged; The lower end import in shaft orientation liquid feeding hole is control water inlet, the upper end outlet in shaft orientation liquid feeding hole is connected with the intercommunicating pore the inner in water-control valve hole, the packing element valve pocket hole in water-control valve hole is connected with the middle part vestibule of Axial-running Out oilhole, the lower end of Axial-running Out oilhole is positioned on the lower surface of oil-collecting water control pipe and is installed with plug, the outlet of the upper end of Axial-running Out oilhole is connected with the middle part vestibule of oil outlet radially, radially the outer end of oil outlet is installed with radially screw plug, and radially the inner of oil outlet outlet is connected with the oil-collecting tube chamber.
3. sieve tube water control device according to claim 1 and 2, is characterized in that filter comprises upper left snap ring, upper right snap ring, bottom left snap ring, bottom right snap ring and screen pipe; Upper annular groove is arranged at the top of connection-core pipe, and lower annular groove is arranged at the bottom of connection-core pipe, and upper left snap ring and upper right snap ring are fixedly mounted on connection-core pipe top by upper annular groove, and bottom left snap ring and bottom right snap ring are fixedly mounted on connection-core pipe bottom by lower annular groove; The front-end and back-end of upper left snap ring and the front-end and back-end of upper right snap ring are fixed together and form snap ring, the front-end and back-end of the front-end and back-end of bottom left snap ring and bottom right snap ring are fixed together and form lower snap ring, annular hydrops groove is arranged on the upper surface of upper snap ring, have in the body of upper snap ring and be no less than one and delivery hole vertically, the lower end import of delivery hole is positioned on the lower surface of snap ring, and the outlet of the upper end of delivery hole is positioned on the bottom surface of annular hydrops groove; There is the top sieve tube seat in the outside of upper snap ring, there is lower screen casing groove in the outside of lower snap ring, be distributed with the sieve aperture that can make screen pipe tube chamber be connected with screen pipe outside on the screen pipe, the upper and lower of screen pipe is set on top sieve tube seat and lower screen casing groove, the upper end of screen pipe and upper snap ring are fixed together, and the lower end of screen pipe and lower snap ring are fixed together; Form liquid storage cylinder between the outer wall of the inwall of screen pipe and connection-core pipe, liquid storage cylinder is connected with annular hydrops groove by delivery hole.
4. sieve tube water control device according to claim 3, there is wire screen in the outside that it is characterized in that liquid storage cylinder, the intraluminal upper snap ring outer lower portion that is positioned at the screen pipe has upper wire screen fixed station shoulder, the intraluminal lower snap ring outer upper that is positioned at the screen pipe has diameter and upper wire screen fixed station to take on fixedly shoulder of corresponding lower wire screen, and the top and bottom of tubular wire screen are separately fixed at wire screen fixed station shoulder and lower wire screen fixedly on shoulder.
5. sieve tube water control device according to claim 3, it is characterized in that radially there is the throttling counterbore at the middle part of oil outlet strangling head is installed, the inner of strangling head is sitting on the bottom surface of throttling counterbore, radially the inner of screw plug is pressed on the outer face of strangling head, the upper outside of strangling head has annular groove, the central upper portion of strangling head has the pressure regulation counterbore, the pressure regulation through hole be connected with the strangling head below is arranged on the bottom surface of pressure regulation counterbore, the top of strangling head has and is no less than one and pressure regulation radial hole that the pressure regulation counterbore is connected with annular groove, the lower outside of strangling head has seal groove and O-ring seal is installed, annular groove is connected with the upper end of Axial-running Out oilhole, annular groove is by the pressure regulation radial hole, pressure regulation counterbore and pressure regulation through hole are connected with the oil-collecting tube chamber.
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| CN 201010260028 CN101915087B (en) | 2010-08-23 | 2010-08-23 | Sieve tube water control device |
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| CN 201010260028 CN101915087B (en) | 2010-08-23 | 2010-08-23 | Sieve tube water control device |
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| CN101915087B true CN101915087B (en) | 2013-06-19 |
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| CN102155203A (en) * | 2011-03-11 | 2011-08-17 | 石云夫 | Water cone controlled parallel canal type flow controller |
| CN108505970B (en) * | 2012-03-07 | 2021-09-24 | 哈里伯顿制造服务有限公司 | Downhole apparatus and flow control method |
| CN105649599A (en) * | 2016-03-14 | 2016-06-08 | 中国石油大学(北京) | Self-adaptable inflow control device for oil well |
| CN106763884B (en) * | 2017-01-06 | 2019-12-13 | 中国海洋石油集团有限公司 | Oil-stabilizing water control valve |
| US20200102806A1 (en) * | 2017-06-22 | 2020-04-02 | Starse Energy And Technology (Group) Co., Ltd | Composite water-controlling and flow-limiting device and screen pipe thereof |
| 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 |
| CN109236225B (en) * | 2018-09-04 | 2023-10-13 | 成都北方石油勘探开发技术有限公司 | Automatic flow-regulating and controlling water tool for horizontal well |
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