The adjustable hydrophone of a kind of Novel down-hole flowTechnical field
The utility model relates to oil-water well downhole tool; The specifically adjustable hydrophone of a kind of Novel down-hole flow.
Background technology
The Concentric adjustable water distributor that oneself has at present sells by the mutual rotation of two perforate spools in well the object now opening, close or regulate water nozzle size, realizes the quantitative water distribution to water filling layer position.When needing allotment water injection rate, special downhole measurement adjusting device is entered under only needing, according to the data on flows that real-time testing obtains, regulated by the amount of spin of gauging means under GCU control well and rotate fuse and fixing water nozzle relative motion, thus realize the adjustment of injection well downhole flow regulator uninterrupted.But remodeling injection well downhole flow regulator is large at aquifer pressure, the oil well bad adaptability that multilayer system water interlayer pressure difference is large, sometimes due to the effect of stratum hydraulic pressure, cause water layer to be noted and do not intake.
Summary of the invention
The purpose of this utility model is to provide a kind of Novel down-hole flow adjustable hydrophone, and this device is arranged on water filling layer position in water injection string and puts, and adapts to the large pressure difference environment in down-hole, low discharge water filling can be realized, water distribution quantity between optimization layer, well layering progression is unrestricted, meets the requirement of multistage water distribution; Also there is anti-returning simultaneously and tell function, can effectively prevent stratum from returning when stopping note and tell.
In order to reach above-mentioned purpose, the utility model have employed following technical scheme, the adjustable hydrophone of a kind of Novel down-hole flow, comprise central part and be connected to the top connection at the upper and lower two ends of central part, lower contact, described central part bottom has the reducing end stand of an evagination, symmetrical and two injection holes axially offered towards central part inner chamber in reducing end stand, arrange one in the position of central part inner chamber connecting through hole and rotate fuse, rotating fuse upper end symmetry establishes greatly, little rectangular step, little rectangular step is positioned between the positioning pin of central part lower end two, large rectangle step is corresponding with central part two injection hole.Above described reducing end stand, spring pedestal is set, above spring pedestal, big spring is set, big spring upper end withstands on the regulating sleeve bottom face of top, and connect top connection above regulating sleeve, the reducing end stand above two injection holes establishes taper seat to coordinate with spring pedestal lower end outer conical surface.Between described top connection and central part, between spring pedestal and central part, between central part and lower contact, be provided with sealing ring.Described rotation fuse bottom arranges little spring, and little spring lower end withstands on the spring step that lower contact inner chamber offers.
Also arrange a steel ball pad between described rotation fuse and little spring, little spring withstands on steel ball pad, between steel ball pad and rotation fuse, symmetrical placement has 4 balls.
Between described top connection and central part, between lower contact and central part, locking nail is all set.
Compared to prior art, the utility model has following beneficial effect:
1, the meticulous low discharge of suitable water injection well injects regulation and control;
2, stop noting rear inlet to close, realize counter-flow resisting;
3, structure is simple, and reliability is high, and rotation fuse moderating force is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable hydrophone of a kind of Novel down-hole flow of the present utility model;
Part lower surface view centered by Fig. 2;
Fig. 3 is for rotating fuse upper surface view.
In figure: 1-orientation spool, 2-top connection, 3,8,10-sealing ring, 4, the locking shear pin of 11-, 5-regulating sleeve, 6-big spring, 7-central part, 9-spring pedestal, 12-lower contact, 13-rotates fuse, 14-ball, 15-steel ball pad, 16-little spring.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
According to Fig. 1-3, the adjustable hydrophone of a kind of Novel down-hole flow, orientation spool 1 lower end is that rectangle teeth groove 101 is connected with top connection 2 is supporting, and be arranged between top connection 2 and central part 7, top connection 2 is threaded with central part 7, seals with sealing ring 3, and loose shear pin 4 of setting up defences.
Big spring 6 is installed, outside central part 7 between regulating sleeve 5 and spring pedestal 9.Regulating sleeve 5 is threaded in top connection 2 bottom, and spring pedestal 9 is enclosed within outside central part 7, seals with sealing ring 8.Central part 7 bottom reducing end stand on be arranged with two injection holes 702, above hole, taper seat 701 is established in reducing end stand face, coordinates with spring pedestal 9 lower end outer conical surface.Two positioning pins 703 are established in central part 7 lower end.
Central part 7 lower end is threaded with lower contact 12, and fastening with locking nail 11, and sealing ring 10 seals.In central part 7 lower end, lower contact 12 inner chamber is provided with and rotates fuse 13, little spring 16 and steel ball pad 15.Positioning step 1201 and spring step 1202 is provided with in lower contact 12.Rotate fuse 13 upper end symmetry and establish size rectangular step, little rectangular step 1302 is positioned between central part 7 lower end two positioning pin 703, and large rectangle step 1301 is corresponding with central part two injection hole 701.
Little spring 16 withstands on steel ball pad 15, under lean against on the spring step 1202 of lower contact 12, steel ball pad 15 and rotate symmetrical placement between fuse 13 and have 4 balls 14.
In implementing at the scene, first this type injection well downhole flow regulator is set to opening, rotary regulating sleeve 5 arranges the pretightning force of big spring 6, this type injection well downhole flow regulator is lowered into water filling layer with water injection string subsequently, ground pump station pump water, to water filling layer, injects water and enters injection well downhole flow regulator by water injection pipe, by the injection hole 702 in central part 7, water injection pressure backs down spring pedestal 9, injects water and enters water layer.According to block exploitation needs, under enter in measurement and adjustment instrument device to well on injection well downhole flow regulator orientation spool 1 locating hole location, and snap into the locating hole rotated on fuse 13, ground energising measurement and adjustment instrument device, test this water layer injection rate, and rotate fuse 13 by measurement and adjustment instrument device and regulate and rotate fuse 13 and be communicated with size between central part 7 injection hole 702, realize the adjustment of water injection rate configuration.When water injection pressure reduces, spring pedestal 9 seals the liquid outlet channel of central part 7 in time under spring 6 acts on, and avoids water layer liquid and enters injection well downhole flow regulator.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.