CN2417288Y - Switching and offcenter type lamination water injection equipment - Google Patents

Abstract

The utility model relates to a switching type eccentric lamination water injection device, which is characterized in that the inherent end of an inner thread buckle of a valve block is a valve needle background shoulder of a convex cap and is positioned at the upper end of a liquid inlet hole in a working barrel; the end of the valve block is sheathed by a press cap; the convex cap of the valve needle can be inserted in a groove of a rotary head of a rotary switch head; the rotary switch head forms a built-in spring cavity in the mode that a rotary rod is fastened by a guiding body, wherein, the joint of the rotary rod is relatively provided with a spiral groove; one end of the guiding body is provided with a hook matched with the groove. The rotary head is fixed at the end of the rotary rod. The device has the characteristic that one suit of device can adjust water quantity of a plurality of laminations after entering a well for one time. The utility model has the advantages of no instrumental clamping phenomenon, time saving, labor saving and high work efficiency.

Description

The eccentric seperated layer water injection device of switching regulator

The utility model relates to a kind of water injection well in oil fields seperated layer water injection device, belongs to the eccentric seperated layer water injection device of switching regulator.

What use during the water injection well in oil fields multi-zone flow regulating at present, is eccentric injection mandrel.When the water injection well stratified water amount is adjusted, all are the blanking plug that utilizes throw in catcher to extract a layer position changes different-diameter to ground water nozzles, then throw in catcher is put into this layer position and knocked down blanking plug and carry out water yield adjustment.Be the water yield of a layer position of every adjustment, all will go into the well throw in catcher to after layer position extract blanking plug and changed water nozzle to ground that the layer position of again throw in catcher being gone into the well knocked down blanking plug and adjusted the water yield.This shows, when adjusting the water yield of a layer position, should start instrument up and down and come and go twice that about 60 minutes of time added the loading and unloading instrument and changed the water nozzle equal time about 80 minutes; If adjust the water yield of a plurality of layers of position, the time then at double.Particularly occur easily because blanking plug falls the phenomenon of card instrument in the two-way process opening down, if can not salvage, then will go up operation and salvage, workload is big, and bothersome, effort, influence are produced.

The purpose of this utility model is to avoid the deficiency of above-mentioned technology, and provide a kind of and need not change water nozzle, save time, the eccentric seperated layer water injection device of labour-saving switching regulator.

The purpose of this utility model can reach by the following technical programs: this device is made up of seating nipple, the liquid inlet/outlet of eccentric injection mandrel, shoulder is seated at the inlet opening upper end in the seating nipple behind the needle that it is protruding cap that valve blocks up the interior intrinsic end of screw thread, and the stifled end of valve is entangled by pressure cap; Wherein the protruding cap of needle can overlap in the groove of the swivel head of plugging in the revolution switch head; And the swingle that the revolution switch head is a joint helical groove is relatively had the built-in chamber of the fastening formation spring of guide way of the hook that cooperates with groove by an end, wherein the fixing swivel head of the end of swingle.

Above-mentioned swivel head links to each other by pin and swingle are terminal.

The utility model has following advantage than above-mentioned prior art: because guide way fastening and swingle form the built-in chamber of spring, moreover the hook of guide way cooperates with the helical groove of swingle, make when operation, under the effect of spring, swingle upwards (descend) rotation moves and to drive the needle rotation mobile, thereby can adjust the size of the water yield, save the time of extracting blanking plug and changing water nozzle; The phenomenon that the card instrument more can not occur; Moreover this device can once be mediated to the water yield of a plurality of layers of position, has obviously improved operating efficiency, saves time, laborsaving.

Accompanying drawing 1 is that structure of the present utility model is cutd open figure;

Accompanying drawing 2 is that the structure of the revolution switch head that links to each other of Fig. 1 needle 2 is cutd open figure.

Below in conjunction with accompanying drawing the utility model is further described:

As shown in Figure 1, this device constitutes on the basis of original eccentric injection mandrel, by seating nipple 1, liquid inlet/outlet (6,5) form, the intrinsic valve of inlet opening 6 upper end screw thread shoulders stifled 4 in seating nipple 1, and screw thread standing valve pin 2 in the valve stifled 4 makes needle 2 to buckle the backspin transfer along the internal thread of valve stifled 4 and moves, thereby can adjust the size of inlet opening 6; Wherein the end of needle 2 has protruding cap, and the solid valve stifled 4 of pressure cap 3 covers can block the protruding cap of needle 2.Fig. 1 is in conjunction with shown in Figure 2, and the protruding cap of needle 2 can overlap in the groove of the swivel head 15 of plugging in the revolution switch head, can firmly drive needle 2 rotations when making swivel head 15 rotations; Joint 8 relative swingles 12 are directed to the body 10 tight cavitys that formed a built-in spring 11 between joint 8 and the swingle 12 that make together, wherein swingle 12 outer walls have helical groove 13, guide way 10 threaded one end jointings 8, guide way 10 other ends have hook, and this hook cooperates with groove 13 can move swingle 12 along guide way 10 rotations; End at swingle 12 passes through fixedly swivel head 15 of pin 14.

During actual job, when seating nipple 1 time to the layer position of water injection well, go into the well after then throw in catcher being connected by eyelet 9 and joint 8, being sitting in needs to adjust on the seating nipple 1 of the water yield, at this moment, the groove of swivel head 15 blocks the protruding cap of needle 2, swingle 12 the effect lower compression spring 11 of recoil make swingle 12 an end hook of guide way 10 and groove 13 to cooperate lower edge guide way 10 to rotate up mobile, thereby driving needle 2 rotates up mobile, this moment, opened greatly in the space of inlet opening 6, the water yield is discharged from fluid hole 5, and promptly the water yield is adjusted into greatly by corresponding; When needs are adjusted the little water yield, only need to use the swingle 12 of the helical groove 13 opposite to reach with above-mentioned direction.This shows, when needs need be opened the big layer position water yield and adjust one or more, only need this device of cover once to go into the well and get final product, do not need to extract blanking plug at every turn and change water nozzle.Equally, when needs need reduce the water yield adjustment of layer position to one or more, only need this device of cover once to go into the well and get final product.

Claims (2)

1, the eccentric seperated layer water injection device of a kind of switching regulator, seating nipple (1), liquid inlet/outlet (6 by eccentric injection mandrel, 5) form, it is characterized in that: needle (2) the back shoulder that the stifled intrinsic end of (4) interior screw thread of valve is protruding cap is seated at inlet opening (6) upper end in the seating nipple (1), and valve stifled (4) is terminal to be entangled by pressure cap (3); Wherein the protruding cap of needle (2) can overlap in the groove of the swivel head (15) of plugging in the revolution switch head; And the swingle (12) that the revolution switch head is a joint (8) helical groove (13) is relatively had the built-in chamber of the fastening formation spring of guide way (10) (11) of the hook that cooperates with groove (13) by an end, wherein the fixing swivel head (15) of the end of swingle (12).

2, the eccentric seperated layer water injection device of switching regulator according to claim 1 is characterized in that: swivel head (15) links to each other by pin (14) and swingle (12) are terminal.

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