CN204024615U - Concentric three pipe layered water fillers - Google Patents
Concentric three pipe layered water fillers Download PDFInfo
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- CN204024615U CN204024615U CN201420419208.2U CN201420419208U CN204024615U CN 204024615 U CN204024615 U CN 204024615U CN 201420419208 U CN201420419208 U CN 201420419208U CN 204024615 U CN204024615 U CN 204024615U
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Abstract
The utility model relates to laminated distributor under well water filling device technical field, is a kind of concentric three pipe layered water fillers; It comprises in down-hole casing, lower packet, lower seal intubate, lower seal cylinder, middle sealing intubate, water filling inner tube, upper packer, upper seal bore, upper sealing intubate, water filling outer tube and water filling manages; In down-hole casing, set lower packet is installed, lower packet comprises central tube.The utility model reasonable and compact in structure, easy to use; Three layers of waterflood path from inside to outside that three of pipe and water filling outer tube pipes form in water filling inner tube, water filling, three of the upper, middle and lower water filling layer to down-hole carries out water filling and control respectively, and water injection rate is controlled, easy to operate, and precision is high; Between upper water filling layer and outer water filling circuit, can carry out reverse circulation washing, know dirt, reduce corrosion, pulling reliability is high simultaneously; The Y111 packer setting adopting adopts transfers that tubing string sets, the mode of upper lifting pipe post deblocking, and convenient operation is easy to use.
Description
Technical field
the utility model relates to laminated distributor under well water filling device technical field, is a kind of concentric three pipe layered water fillers.
Background technology
along with exploitation, the production in oil field, strata pressure reduces gradually, causes oil well output to decline.In order to keep the stable of stratum energy, Water flooding controllable reserve and water drive recoverable reserves are increased to some extent, separate zone waterflooding technology is the most effectively one of water and oil control measure at present.The mode of seperated layer water injection has a variety of, comprises water injection through tubing and casing, eccentric separated-injection, hydraulic running and pulling underground quantity dispensing, water filling etc. in turn; These dispensing mode ubiquities: 1, ground dispensing makes casing corrosion serious; Especially when sand output well is applied, the structure open in usual that in pipe, injection well downhole flow regulator adopts makes in pipe always in the state of ganging up, and ganging up can sand pipe laying post, end ball, cause cannot test or well-flushing obstructed, heavy corrosion sleeve pipe and water injection string; Because of the fouling of cover tube inner corrosion, cause waterflood path to stop up, pulling difficulty simultaneously; 2, rough water filling; Water injection rate is uncontrollable, and precision is poor, can not give full play to the potentiality of each oil reservoir; Although eccentric separated-injection can be realized controlled and be reached precisely certain by debugging, troublesome poeration, flexibility ratio is poor;
3, generally adopt packer to be threaded with outer tube four-way with outer tube tubing hanger, during use, need to rotate and set, rotate deblocking, it is very inconvenient to operate.
Summary of the invention
the utility model provides a kind of concentric three pipe layered water fillers, overcome the deficiency of above-mentioned prior art, it can effectively solve and adopt existing seperated layer water injection mode to have that casing corrosion is serious, water injection rate is uncontrollable, precision is poor and unhandy problem.
the technical solution of the utility model realizes by following measures: a kind of concentric three pipe layered water fillers, comprise in down-hole casing, lower packet, lower seal intubate, lower seal cylinder, middle sealing intubate, water filling inner tube, upper packer, upper seal bore, upper sealing intubate, water filling outer tube and water filling and managing; In down-hole casing, set lower packet is installed, lower packet comprises central tube; Lower seal intubate is installed in lower packet central tube, in the upper end of lower seal intubate, is installed with intubate top connection; The stopper slot that has upper end open in upside the inner of lower packet central tube, the upper outside of the intubate top connection corresponding with stopper slot has can make axially descending spacing outer limited ring dais of lower seal intubate, and outer limited ring dais is seated in stopper slot; In the upper end of intubate top connection, be installed with lower seal cylinder; Middle inside at lower seal cylinder is sealed and installed with middle sealing intubate, the stopper slot that has upper end open in the top of lower seal cylinder, the upper outside of the middle sealing intubate corresponding with stopper slot has can make axially descending spacing outer limited ring dais of middle sealing intubate, and outer limited ring dais is seated in stopper slot; Inner top side in middle sealing intubate is installed with water filling inner tube; Water filling inner tube is connected and forms internal layer waterflood path with middle sealing intubate and lower seal intubate; Upper end at lower seal cylinder is installed with upper packer by crossover sub wide at the top and narrow at the bottom; Upper packer becomes the interior separation of down-hole casing respectively upper water filling layer, middle water filling layer and the water layer of making a bet with lower packet; On the down-hole casing in upper water filling layer, middle water filling layer and the water layer outside of making a bet, be respectively equipped with water filling port; The lower port of internal layer waterflood path is communicated with the water layer of making a bet; Upper packer comprises central tube; The lower end of upper packer central tube and the upper end of crossover sub are fixedly installed togather; Upper end at upper packer central tube is installed with upper seal bore; On being provided with, seal intubate in upper seal bore, have the stopper slot of upper end open in upside the inner of upper seal bore, have and can make axially descending spacing outer limited ring dais of upper sealing intubate in the upper sealing intubate corresponding with stopper slot, outer limited ring dais is seated in stopper slot; In the upper end inner side of upper sealing intubate is installed with water filling, manage, in water filling pipe, upper sealing intubate, crossover sub, lower seal cylinder respectively spacer sleeve be contained in outside water filling inner tube and and the water filling inner tube of middle sealing intubate upper end between form middle level water filling circuit; On the lower seal cylinder above middle sealing intubate, circle distribution has at least one can be connected middle water filling layer middle level weep hole with middle level water filling circuit; In the upper end of upper seal bore, be installed with water filling outer tube, upper seal bore and water filling outer tube respectively spacer sleeve be contained in water filling pipe outside and and the water filling of upper sealing intubate upper end in form outer water filling circuit between pipe; On the upper seal bore above upper sealing intubate, circle distribution has at least one can be connected outer water filling circuit upper strata weep hole with upper water filling layer.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned lower packet can adopt Y453 packer; Upper packer adopts Y111 packer.
between above-mentioned upper seal bore and upper packer, can be installed with at least one oil pipe by box cupling; Between lower seal cylinder and crossover sub, by box cupling, be installed with at least one oil pipe; Between lower seal cylinder and lower packet, by box cupling, be installed with at least one oil pipe; Between adjacent oil pipe, by box cupling, be fixedly installed togather; Or/and the outside, lower end of upper sealing intubate, middle sealing intubate and lower seal intubate is back taper wide at the top and narrow at the bottom.
the above-mentioned lower seal cylinder corresponding with middle level weep hole outside and can be installed with respectively the Choked flow cover that Open Side Down with upper seal bore outside corresponding to upper strata weep hole; Or/and water filling outer tube comprises water filling outer tube and lower water filling outer tube; Upper water filling outer tube lower end and lower water filling outer tube upper end are fixedly installed togather by screw thread; The lower end of lower water filling outer tube has external screw thread also and between upper seal bore by screw thread, to be fixedly installed togather; Or/and, in the bottom of water filling inner tube, be installed with kill valve.
the outside of above-mentioned upper sealing intubate can be provided with the outer seal ring platform corresponding with upper seal bore and upper packer central tube inside, is provided with the outer seal ring platform inner corresponding with lower seal cylinder in the outside of middle sealing intubate; In the outside of upper sealing intubate, be provided with the inner corresponding outer seal ring platform of upper seal bore; In the upper and lower of each outer seal ring platform, be respectively equipped with at least two seals circle mounting groove, in sealing ring mounting groove, be installed with respectively sealing ring.
the length of the outer seal ring platform of above-mentioned lower seal intubate can be between 1100 centimetres to 1300 centimetres, the length of the outer seal ring platform of middle sealing intubate is between 500 centimetres to 700 centimetres, and the length of the outer seal ring platform of upper sealing intubate is between 1000 centimetres to 1500 centimetres.
the utility model reasonable and compact in structure, easy to use; Three layers of waterflood path from inside to outside that three of pipe and water filling outer tube pipes form in water filling inner tube, water filling, three of the upper, middle and lower water filling layer to down-hole carries out water filling and control respectively, and water injection rate is controlled, easy to operate, and precision is high; Between upper water filling layer and outer water filling circuit, can carry out reverse circulation washing, know dirt, reduce corrosion, pulling reliability is high simultaneously; The Y111 packer setting adopting adopts transfers that tubing string sets, the mode of upper lifting pipe post deblocking, and convenient operation is easy to use.
Accompanying drawing explanation
accompanying drawing 1 is looked sectional structure schematic diagram for the master of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is down-hole casing, 2 is lower packet, 3 is lower seal intubate, 4 is intubate top connection, 5 is outer limited ring dais, 6 is lower seal cylinder, 7 is middle sealing intubate, 8 is water filling inner tube, 9 is internal layer waterflood path, 10 is upper packer, 11 is upper water filling layer, 12 is middle water filling layer, 13 is the water layer of making a bet, 14 is water filling port, 15 is upper seal bore, 16 is upper sealing intubate, 17 manage in water filling, 18 is crossover sub, 19 is middle level water filling circuit, 20 is middle level weep hole, 21 is water filling outer tube, 22 is outer water filling circuit, 23 is upper strata weep hole, 24 is box cupling, 25 is sealing ring, 26 is Choked flow cover, 27 is oil pipe, 28 is kill valve.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 1, these concentric three pipe layered water fillers comprise in down-hole casing 1, lower packet 2, lower seal intubate 3, lower seal cylinder 6, middle sealing intubate 7, water filling inner tube 8, upper packer 10, upper seal bore 15, upper sealing intubate 16, water filling outer tube 21 and water filling and manage 17; In down-hole casing 1, set lower packet 2 is installed, lower packet 2 comprises central tube; In lower packet 2 central tubes, lower seal intubate 3 is installed, in the upper end of lower seal intubate 3, is installed with intubate top connection 4; The stopper slot that has upper end open in upside the inner of lower packet 2 central tubes, the upper outside of the intubate top connection 4 corresponding with stopper slot has can make the axial descending spacing outer limited ring dais 5 of lower seal intubate 3, and outer limited ring dais 5 is seated in stopper slot; In the upper end of intubate top connection 4, be installed with lower seal cylinder 6; Middle inside at lower seal cylinder 6 is sealed and installed with middle sealing intubate 7, the stopper slot that has upper end open in the top of lower seal cylinder 6, the upper outside of the middle sealing intubate 7 corresponding with stopper slot has can make the axial descending spacing outer limited ring dais 5 of middle sealing intubate 7, and outer limited ring dais 5 is seated in stopper slot; Inner top side in middle sealing intubate 7 is installed with water filling inner tube 8; Water filling inner tube 8 is connected and forms internal layer waterflood path 9 with middle sealing intubate 7 and lower seal intubate 3; Upper end at lower seal cylinder 6 is installed with upper packer 10 by crossover sub wide at the top and narrow at the bottom 18; Upper packer 10 becomes the interior separation of down-hole casing 1 respectively upper water filling layer 11, middle water filling layer 12 and the water layer 13 of making a bet with lower packet 2; On the down-hole casing 1 in upper water filling layer 11, middle water filling layer 12 and water layer 13 outsides of making a bet, be respectively equipped with water filling port 14; The lower port of internal layer waterflood path 9 is communicated with the water layer 13 of making a bet; Upper packer 10 comprises central tube; The lower end of upper packer 10 central tubes and the upper end of crossover sub 18 are fixedly installed togather; Upper end at upper packer 10 central tubes is installed with upper seal bore 15; In upper seal bore 15, be provided with and seal intubate 16, the stopper slot that has upper end open in upside the inner of upper seal bore 15, in the upper sealing intubate 16 corresponding with stopper slot, have and can make the axial descending spacing outer limited ring dais 5 of upper sealing intubate 16, outer limited ring dais 5 is seated in stopper slot; In the upper end inner side of upper sealing intubate 16 is installed with water filling, manage 17, in water filling, manage 17, upper sealing intubate 16, crossover sub 18, lower seal cylinder 6 respectively spacer sleeve be contained in water filling inner tube 8 outsides and and the water filling inner tube 8 of middle sealing intubate 7 upper ends between form middle level water filling circuit 19; On the lower seal cylinder 6 above middle sealing intubate 7, circle distribution has at least one can be connected middle water filling layer 12 middle level weep hole 20 with middle level water filling circuit 19; In the upper end of upper seal bore 15, be installed with water filling outer tube 21, upper seal bore 15 and water filling outer tube 21 respectively spacer sleeve be contained in water filling, manage 17 outsides and and the water filling of upper sealing intubate 16 upper ends in form outer water filling circuit 22 between managing 17; On the upper seal bore 15 above upper sealing intubate 16, circle distribution has at least one can be connected outer water filling circuit 22 upper strata weep hole 23 with upper water filling layer 11.In down-hole casing 1, be provided with internal layer waterflood path 9, middle level water filling circuit 19 and the outer water filling circuit 22 of water filling layer 13, middle water filling layer 12 and the 11 difference water filling of upper water filling layer downwards, separate between internal layer waterflood path 9, middle level water filling circuit 19 and outer water filling circuit 22, and isolated with down-hole casing 1, effectively reduce the erosion corrosion of water inlet current to down-hole casing 1; Simultaneously at well head place, ground, support the use the three pipe seperated layer water injection injection allocation of ground manifolds that can control internal layer waterflood path 9, middle level water filling circuit 19 and 22 water inlets of outer water filling circuit, in three pipe seperated layer water injection injection allocation of ground manifolds, there is minute manifold of controlling respectively each waterflood path, by controlling this minute manifold, can control water injection rate, precisely controlled, easy to operate; In addition, the water filling layer 11 that can make progress by the well head of down-hole casing 1 injects flushing liquor, and flushing liquor enters outer water filling circuit 22 through upper strata weep hole 23, then turns back to wellhead ground from outer water filling circuit 22, forms backwash circulation canal; To upper strata down-hole casing 1 and 22 flushings of outer water filling circuit, can remove the fouling in down-hole casing 1, reduce corrosion, keep outer water filling circuit 22 unimpeded, the reliability of pulling is high.Lower packet 2 and upper packer 10 all adopt the packer in field, existing known oil field.
can according to actual needs, above-mentioned concentric three pipe layered water fillers be made further optimization and/or improvements:
as required, lower packet 2 adopts Y453 packer; Upper packer 10 adopts Y111 packer.Y453 packer and Y111 packer are existing known packer; Y453 packer is bi-directional slip structure, and withstand voltage height is more stable; Can not occur that situation about fluctuating occurs because pressure changes; Y111 packer adopts is to transfer that tubing string sets, the mode of upper lifting pipe post deblocking, and convenient operation is easy to use.
as shown in Figure 1, between upper seal bore 15 and upper packer 10, by box cupling 24, be installed with at least one oil pipe 27; Between lower seal cylinder 6 and crossover sub 18, by box cupling 24, be installed with at least one oil pipe 27; Between lower seal cylinder 6 and lower packet 2, by box cupling 24, be installed with at least one oil pipe 27; Between adjacent oil pipe 27, by box cupling 24, be fixedly installed togather.By increase and decrease oil pipe 27, adjustment string length, to meet the stratum water filling demand of different depth.
as shown in Figure 1, outside, the lower end of upper sealing intubate 16, middle sealing intubate 7 and lower seal intubate 3 is back taper wide at the top and narrow at the bottom.Be convenient to sealing intubate 16, middle sealing intubate 7 and lower seal intubate 3 and be from top to bottom inserted in upper packer 10 central tubes, lower seal cylinder 6, upper seal bore 15, convenient installation.
as shown in Figure 1, lower seal cylinder 6 outsides corresponding with middle level weep hole 20 and be installed with respectively the Choked flow cover 26 that Open Side Down with upper seal bore 15 outsides corresponding to upper strata weep hole 23.The water injecting from well head is subject to gravity acceleration, and a fluid stream is more and more faster, and high-velocity flow enters upper water filling layer 11 and middle water filling layer 12 when interior through upper strata weep hole 23 and middle level weep hole 20, can impact failure down-hole casing 1; The Choked flow cover 26 of setting up can change water velocity and direction, reduces the damage that down-hole casing 1 is produced.
as required, water filling outer tube 21 comprises water filling outer tube and lower water filling outer tube; Upper water filling outer tube lower end and lower water filling outer tube upper end are fixedly installed togather by screw thread; The lower end of lower water filling outer tube have external screw thread and and upper seal bore 15 between by screw thread, be fixedly installed togather.Can, according to the demand of the stratum water filling degree of depth, by being threaded of upper water filling outer tube and lower water filling outer tube, to water filling outer tube 21, carry out length adjusting; This regulative mode, easy operating, easy to use.
as shown in Figure 1, in the bottom of water filling inner tube 8, be installed with kill valve 28.Kill valve 28 can be sprained and be pressed the pressure-relief valve that pressure release passage is opened by pitching for existing; Seperated layer water injection is complete, when carrying in water filling inner tube 8, opens kill valve 28, and the water in water filling inner tube 8 can be expelled to through the pressure release passage of kill valve in internal layer waterflood path 9; Reduce water filling inner tube 8 load, in convenience, carry.
as shown in Figure 1, in the outside of upper sealing intubate 16, be provided with the outer seal ring platform corresponding with upper seal bore 15 and upper packer 10 central tubes inside, in the outside of middle sealing intubate 7, be provided with the outer seal ring platform inner corresponding with lower seal cylinder 6; In the outside of upper sealing intubate 16, be provided with the inner corresponding outer seal ring platform of upper seal bore 15; In the upper and lower of each outer seal ring platform, be respectively equipped with at least two seals circle mounting groove, in sealing ring mounting groove, be installed with respectively sealing ring 25.Sealing ring 25 can increase the effect of contact surface sealing.
as required, the length of the outer seal ring platform of lower seal intubate 3 is between 1100 centimetres to 1300 centimetres, the length of the outer seal ring platform of middle sealing intubate 7 is between 500 centimetres to 700 centimetres, and the length of the outer seal ring platform of upper sealing intubate 16 is between 1000 centimetres to 1500 centimetres.Avoid wriggling up and down because of lower seal cylinder 6, water filling inner tube 8 and water filling outer tube 21, and cause lower seal intubate 3 to depart from upper packer 10 central tubes, middle sealing intubate 7 departs from lower seal cylinder 6, and the situation that upper sealing intubate 16 departs from upper seal bore 15 occurs, and prevents seal failure.
above technical characterictic has formed most preferred embodiment of the present utility model, 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 installation process of the utility model most preferred embodiment:
1, installation process:
first down-hole casing 1 is carried out after sand washing, well-flushing and drifting, lower packet 2 and releasing tool are lowered to precalculated position, down-hole; 15Mpa to 20 Mpa is suppressed in pitching, and lower packet 2 sets; Simultaneously, carry releasing tool, prepare to be lowered to outer tube tubing string; Above-mentioned outer tube tubing string is the pipe string of the lower seal intubate 3, lower seal cylinder 6, crossover sub 18, upper packer 10, upper seal bore 15 and the water filling outer tube 21 that are connected with box cupling 24 by oil pipe 27 successively from the bottom to top;
get in the outer tube tubing string lower going-into-well setting of casing connecting, the lower seal intubate 3 of bottom is inserted in the central tube of lower packet 2, and the outer limited ring dais 5 of lower seal intubate 3 is seated in the stopper slot of lower packet 2 central tubes; Discharge ballast 60KN to 100KN, upper packer 10 sets in down-hole casing 1; Preparation is lowered to middle pipe tubing string, and above-mentioned middle pipe tubing string is for being connected with the pipe string of managing 17 in upper sealing intubate 16 and water filling by oil pipe 27 and box cupling 24 successively from the bottom to top;
get behind the precalculated position in the middle pipe tubing string lower going-into-well setting of casing connecting, upper sealing intubate 16 is shut with the bottom of the upper seal bore 15 of upper strata weep hole 23 belows managing 17 in water filling, forms outer water filling circuit 22; Preparation is lowered to inner tube tubing string, and above-mentioned inner tube tubing string is for sealing the pipe string of intubate 7 and water filling inner tube 8 in connecting successively from the bottom to top;
get the precalculated position in the inner tube tubing string lower going-into-well setting of casing 1 connecting, middle sealing intubate 7 is shut the bottom of the lower seal cylinder 6 of water filling inner tube 8 and middle level weep hole 20 belows, forms middle level water filling circuit 19; The interior formation internal layer of water filling inner tube 8 waterflood path 9;
to outer water filling circuit 22, middle level water filling circuit 19 and internal layer waterflood path 9, fill after water, to middle level water filling circuit 19, suppress 10Mpa to 15Mpa, if outer water filling circuit 22 or internal layer waterflood path 9 are without continuous overflow, guarantee that lower packet 2, lower seal intubate 3, middle sealing intubate 7, upper sealing intubate 16 and upper packer 10 are all without leaking, then connect the matching used three pipe seperated layer water injection injection allocation of ground manifolds in ground; Above-mentioned three manage seperated layer water injection injection allocation of ground manifolds comprises three control manifolds, is respectively lower floor's water filling control minute manifold, middle level water filling control minute manifold and upper strata control water filling and divides manifold;
delivery port and the internal layer waterflood path 9 of minute manifold controlled in lower floor's water filling; The delivery port that minute manifold is controlled in middle level water filling is communicated with middle level water filling circuit 19, and upper strata is controlled water filling and divided manifold to be communicated with outer water filling circuit 22, installs;
2, the injecting process:
by lower floor's water filling control manifold, to internal layer waterflood path 9 injected waters, through the lower port of internal layer waterflood path 9, enter in the water layer 13 of making a bet of down-hole casing 1, then be injected in understratum by water filling port 14; By middle level water filling manifold, to middle level water filling circuit 19 injected waters, in middle level weep hole 20 enters into the water filling layer 12 of down-hole casing 1, then be injected in stratum, middle part by water filling port 14; By the outside layer of upper strata water filling manifold water filling circuit 22 injected waters, in upper strata weep hole 23 enters into the upper water filling layer 11 of down-hole casing 1, then be injected in upper formation by water filling port 14.
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.
Claims (10)
1. concentric three pipe layered water fillers, is characterized in that comprising in down-hole casing, lower packet, lower seal intubate, lower seal cylinder, middle sealing intubate, water filling inner tube, upper packer, upper seal bore, upper sealing intubate, water filling outer tube and water filling and manage; In down-hole casing, set lower packet is installed, lower packet comprises central tube; Lower seal intubate is installed in lower packet central tube, in the upper end of lower seal intubate, is installed with intubate top connection; The stopper slot that has upper end open in upside the inner of lower packet central tube, the upper outside of the intubate top connection corresponding with stopper slot has can make axially descending spacing outer limited ring dais of lower seal intubate, and outer limited ring dais is seated in stopper slot; In the upper end of intubate top connection, be installed with lower seal cylinder; Middle inside at lower seal cylinder is sealed and installed with middle sealing intubate, the stopper slot that has upper end open in the top of lower seal cylinder, the upper outside of the middle sealing intubate corresponding with stopper slot has can make axially descending spacing outer limited ring dais of middle sealing intubate, and outer limited ring dais is seated in stopper slot; Inner top side in middle sealing intubate is installed with water filling inner tube; Water filling inner tube is connected and forms internal layer waterflood path with middle sealing intubate and lower seal intubate; Upper end at lower seal cylinder is installed with upper packer by crossover sub wide at the top and narrow at the bottom; Upper packer becomes the interior separation of down-hole casing respectively upper water filling layer, middle water filling layer and the water layer of making a bet with lower packet; On the down-hole casing in upper water filling layer, middle water filling layer and the water layer outside of making a bet, be respectively equipped with water filling port; The lower port of internal layer waterflood path is communicated with the water layer of making a bet; Upper packer comprises central tube; The lower end of upper packer central tube and the upper end of crossover sub are fixedly installed togather; Upper end at upper packer central tube is installed with upper seal bore; On being provided with, seal intubate in upper seal bore, have the stopper slot of upper end open in upside the inner of upper seal bore, have and can make axially descending spacing outer limited ring dais of upper sealing intubate in the upper sealing intubate corresponding with stopper slot, outer limited ring dais is seated in stopper slot; In the upper end inner side of upper sealing intubate is installed with water filling, manage, in water filling pipe, upper sealing intubate, crossover sub, lower seal cylinder respectively spacer sleeve be contained in outside water filling inner tube and and the water filling inner tube of middle sealing intubate upper end between form middle level water filling circuit; On the lower seal cylinder above middle sealing intubate, circle distribution has at least one can be connected middle water filling layer middle level weep hole with middle level water filling circuit; In the upper end of upper seal bore, be installed with water filling outer tube, upper seal bore and water filling outer tube respectively spacer sleeve be contained in water filling pipe outside and and the water filling of upper sealing intubate upper end in form outer water filling circuit between pipe; On the upper seal bore above upper sealing intubate, circle distribution has at least one can be connected outer water filling circuit upper strata weep hole with upper water filling layer.
2. concentric three pipe layered water fillers according to claim 1, is characterized in that lower packet adopts Y453 packer; Upper packer adopts Y111 packer.
3. concentric three pipe layered water fillers according to claim 1 and 2, is characterized in that by box cupling, being installed with at least one oil pipe between upper seal bore and upper packer; Between lower seal cylinder and crossover sub, by box cupling, be installed with at least one oil pipe; Between lower seal cylinder and lower packet, by box cupling, be installed with at least one oil pipe; Between adjacent oil pipe, by box cupling, be fixedly installed togather; Or/and the outside, lower end of upper sealing intubate, middle sealing intubate and lower seal intubate is back taper wide at the top and narrow at the bottom.
4. concentric three pipe layered water fillers according to claim 1 and 2, is characterized in that the lower seal cylinder corresponding with middle level weep hole outside and are installed with respectively with upper seal bore outside corresponding to upper strata weep hole the Choked flow cover that Open Side Down; Or/and water filling outer tube comprises water filling outer tube and lower water filling outer tube; Upper water filling outer tube lower end and lower water filling outer tube upper end are fixedly installed togather by screw thread; The lower end of lower water filling outer tube has external screw thread also and between upper seal bore by screw thread, to be fixedly installed togather; Or/and, in the bottom of water filling inner tube, be installed with kill valve.
5. concentric three pipe layered water fillers according to claim 3, is characterized in that the lower seal cylinder corresponding with middle level weep hole outside and are installed with respectively with upper seal bore outside corresponding to upper strata weep hole the Choked flow cover that Open Side Down; Or/and water filling outer tube comprises water filling outer tube and lower water filling outer tube; Upper water filling outer tube lower end and lower water filling outer tube upper end are fixedly installed togather by screw thread; The lower end of lower water filling outer tube has external screw thread also and between upper seal bore by screw thread, to be fixedly installed togather; Or/and, in the bottom of water filling inner tube, be installed with kill valve.
6. according to claim 1 and 2 concentric three manage layered water fillers, the outside that it is characterized in that lower seal intubate is provided with the outer seal ring platform corresponding with upper seal bore and upper packer central tube inside, is provided with the outer seal ring platform inner corresponding with lower seal cylinder in the outside of middle sealing intubate; In the outside of upper sealing intubate, be provided with the inner corresponding outer seal ring platform of upper seal bore; In the upper and lower of each outer seal ring platform, be respectively equipped with at least two seals circle mounting groove, in sealing ring mounting groove, be installed with respectively sealing ring.
7. according to claim 3 concentric three manage layered water fillers, the outside that it is characterized in that sealing intubate is provided with the outer seal ring platform corresponding with upper seal bore and upper packer central tube inside, is provided with the outer seal ring platform inner corresponding with lower seal cylinder in the outside of middle sealing intubate; In the outside of upper sealing intubate, be provided with the inner corresponding outer seal ring platform of upper seal bore; In the upper and lower of each outer seal ring platform, be respectively equipped with at least two seals circle mounting groove, in sealing ring mounting groove, be installed with respectively sealing ring.
8. according to claim 5 concentric three manage layered water fillers, the outside that it is characterized in that lower seal intubate is provided with the outer seal ring platform corresponding with upper seal bore and upper packer central tube inside, is provided with the outer seal ring platform inner corresponding with lower seal cylinder in the outside of middle sealing intubate; In the outside of upper sealing intubate, be provided with the inner corresponding outer seal ring platform of upper seal bore; In the upper and lower of each outer seal ring platform, be respectively equipped with at least two seals circle mounting groove, in sealing ring mounting groove, be installed with respectively sealing ring.
9. according to claim 6 concentric three manage layered water fillers, it is characterized in that the length of outer seal ring platform of lower seal intubate is between 1100 centimetres to 1300 centimetres, the length of the outer seal ring platform of middle sealing intubate is between 500 centimetres to 700 centimetres, and the length of the outer seal ring platform of upper sealing intubate is between 1000 centimetres to 1500 centimetres.
10. according to claim 8 concentric three manage layered water fillers, it is characterized in that the length of outer seal ring platform of lower seal intubate is between 1100 centimetres to 1300 centimetres, the length of the outer seal ring platform of middle sealing intubate is between 500 centimetres to 700 centimetres, and the length of the outer seal ring platform of upper sealing intubate is between 1000 centimetres to 1500 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419208.2U CN204024615U (en) | 2014-07-28 | 2014-07-28 | Concentric three pipe layered water fillers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419208.2U CN204024615U (en) | 2014-07-28 | 2014-07-28 | Concentric three pipe layered water fillers |
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| CN204024615U true CN204024615U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420419208.2U Expired - Fee Related CN204024615U (en) | 2014-07-28 | 2014-07-28 | Concentric three pipe layered water fillers |
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| Country | Link |
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| CN (1) | CN204024615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141477A (en) * | 2014-07-28 | 2014-11-12 | 克拉玛依市红都有限责任公司 | Concentric three-tube separated layer water injection device and using method thereof |
| CN109252834A (en) * | 2017-07-13 | 2019-01-22 | 中国石油化工股份有限公司 | The concentric long-acting layered water filler of binary channels and method |
-
2014
- 2014-07-28 CN CN201420419208.2U patent/CN204024615U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141477A (en) * | 2014-07-28 | 2014-11-12 | 克拉玛依市红都有限责任公司 | Concentric three-tube separated layer water injection device and using method thereof |
| CN109252834A (en) * | 2017-07-13 | 2019-01-22 | 中国石油化工股份有限公司 | The concentric long-acting layered water filler of binary channels and method |
| CN109252834B (en) * | 2017-07-13 | 2024-05-24 | 中国石油化工股份有限公司 | Concentric double-channel long-acting layered water injection device and method |
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