CN2653127Y

CN2653127Y - Blocking device

Info

Publication number: CN2653127Y
Application number: CN 03252863
Authority: CN
Inventors: 张鉴明; 徐仲英; 庞云伟; 林涛; 谢泰平; 杨洪亮; 曾鸿逊
Original assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Current assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2004-11-03
Anticipated expiration: 2013-09-19

Abstract

The utility model discloses a blanking plug that installed in the eccentric water regulator of the water injection well in oil field for injecting water. A water faucet valve seat with hole is arranged on the cover of the blanking plug, a active water faucet valve core which can block or open the hole of the water faucet valve seat is installed in the hole, a transmission shaft which is connected with the active water faucet valve core is also arranged on the cover of the blanking plug. The utility model has the advantage that the open size of the blocked water faucet can be adjusted without changing the blanking plug, thereby tremendously reduces the running cost and work load, increases the work effect.

Description

The blanking plug device

Technical field:

The utility model relates in a kind of eccentric injection mandrel that is installed in water injection well in oil fields blanking plug preparation method and the device thereof that water filling is used is carried out in the oil field, belongs to blanking plug device technique field, oil field.

Background technology:

Along with oil-field flooding technology is more and more universal, water injection well is more and more, needs often the water distribution scheme to be adjusted, to reach the purpose of stabilized crude (oil) output, rational exploitation.Blanking plug is to be used for the indispensable device of water filling in the water injection well.At present, in the prior art, it is the blanking plug of definite value that the blanking plug of water injection well in oil fields all adopts water nozzle opening internal diameter size, like this, change the injection allocation amount of a bite water injection well as need, just must change the blanking plug of corresponding water nozzle opening size, this not only needs to prepare the blanking plug of a large amount of various different bore water nozzles, changes blanking plug but also will waste many time and labors.The result of use of therefore existing blanking plug is very undesirable.

Summary of the invention:

The purpose of this utility model is: provide a kind of blanking plug of need not changing just can regulate the blanking plug device that stops up the water nozzle openings of sizes, to overcome the deficiencies in the prior art.

The utility model is to constitute like this: it comprises blanking plug housing (1), on blanking plug housing (1), be provided with the water nozzle valve seat (2) that has the hole, the movable water nozzle spool (3) that its hole all can be blocked or be opened wide is housed in the hole of water nozzle valve seat (2), the power transmission shaft (4) that is threaded with movable water nozzle spool (3) also is housed on blanking plug housing (1); Power transmission shaft (4) is made up of joint a, the axle b and the drive screw c that have a cone, the end of drive screw c is threaded with spool (3), being provided with cross sectional shape at the other end of screw rod c is oblong hole, an end section shape that has the axle b of cone also is to be connected with it in Long Circle and the Long Circle hole of inserting screw rod c, and the other end that has the axle b of cone is connected with joint a by pin d; The front end of joint a is shaped as the polygon prism planform; Be provided with two slotted eyes that communicate with its inner chamber in the two sides of blanking plug housing (1), in two slotted eyes, be provided with limited block (5), two limited blocks (5) are connected in the blanking plug housing (1) by pin (6) respectively, the cone that has the axle b of cone can contact with two limited blocks (5), the axle that has cone also is with spring base (7) and spring (8) on the b, and spring base (7) is fixed on the b who has cone by steady pin (9).

Owing to adopted technique scheme, the utility model compared with prior art the utlity model has and need not change the advantage that blanking plug just can be regulated blanking plug water nozzle openings of sizes, has therefore significantly reduced running cost, reduce labour intensity, improved operating efficiency.When using blanking plug device of the present utility model, earlier whole blanking plug device is inserted in the eccentric orfice of Y341-114 type eccentric injection mandrel (16) in the water injection well in oil fields, when inserting, limited block (5) turns under the extruding of the eccentric orfice of eccentric injection mandrel (16) and all is withdrawn in the both sides slotted eye of blanking plug housing (1), be convenient to so whole blanking plug device is installed in the eccentric orfice of eccentric injection mandrel (16), after arriving the installation site, limited block (5) is upset downwards under the effect of spring (8), the cylindrical of outstanding blanking plug housing (1) also is stuck in the stepped hole of eccentric injection mandrel (16), make the blanking plug device under water impact, can rest on the origin-location, when needs change flow, only need an existing device that can transmit turning moment is enclosed within and pass through power transmission shaft (4) on the polygon prism of joint a to drive movable water nozzle spool (3) mobile, thereby the water nozzle openings of sizes is adjusted to the openings of sizes of required flow.When needs take out blanking plug, on carry joint a, limited block (5) turns under the cone effect of the axle b that has cone and all is withdrawn in the both sides slotted eye of blanking plug housing (1), can pull blanking plug out.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the structural representation of water nozzle valve seat among the utility model embodiment;

Accompanying drawing 3 is that the A of accompanying drawing 2 is to schematic diagram;

Accompanying drawing 4 is installed in the schematic diagram when using in the eccentric injection mandrel of water injection well in oil fields for the utility model, arrow is represented the flow direction of water filling among the figure:

The specific embodiment:

Embodiment of the present utility model:

During making, can go up at the blanking plug housing (1) identical and make a water nozzle valve seat (2) that has the hole with existing blanking plug profile, the movable water nozzle spool (3) of adorning in the hole of water nozzle valve seat (2) that an energy is all blocked its hole or opening wide, and on blanking plug housing (1), adorn one and can get final product by power transmission shaft (4) transferring power and that can be threaded with movable water nozzle spool (3); Convenient and reliable in order to use, its power transmission shaft (4) can be made up of joint a, the axle b and the drive screw c that have a cone, during concrete the making, the axle b that will have cone earlier passes to insert in the joint a behind spring base (7) and spring (8) and the end cap (10) again and also is fixed together with pin d and joint a; Locate and be fixed on spring base (7) on the axle b that has cone by steady pin (9); The stepped hole of the blocked device housing in the right side of drive screw c (1) is spacing, and the plug screw (11) in its left side blocked device housing (1) compresses, so drive screw c can only rotate and can not move axially, and back-up ring (12) is used for preventing that plug screw (11) is loosening; End cap (10) is connected with blanking plug housing (1) by screw thread, to notice during assembling guaranteeing that the right-hand member (its cross sectional shape can be made into Long Circle) that has the axle b of cone inserts in the slotted hole of drive screw c left end, the limited block (5) of in the slotted eye of blanking plug housing (1) two sides, packing into, and fixing with pin (6); The water nozzle spool (3) of packing into from the right side of blanking plug housing (1), water nozzle spool (3) and the trapezoidal thread of drive screw c are meshed, when making water nozzle spool (3), produce the muscle of vertical arrangement that can cooperate thereon simultaneously with vertical groove of arranging in the blanking plug housing (1), when packing water nozzle spool (3) into blanking plug housing (1), its muscle of vertically arranging is cooperated with vertical groove of arranging in the blanking plug housing (1), can prevent that like this water nozzle spool (3) and blanking plug housing (1) from relatively rotating; Assembled in sequence water nozzle valve seat (2), cushion pad (14) and screen pack (15) then are contained in sealing ring (13) blanking plug housing (1) at last and go up.

Convenient and sensitive in order to regulate the water nozzle opening, when making water nozzle valve seat (2), can in the hole of water nozzle valve seat (2), produce 3 skewed slots, like this with water nozzle spool (3) when being used, form 3 water holes, form the valve port of water nozzle jointly.Also the hole of water nozzle valve seat (2) can be made into the taper hole structure.Water nozzle valve seat (2) can adopt zirconia (ZrO2) material with the material of the part that water nozzle spool (3) contacts with the hole of water nozzle valve seat (2), so more can satisfy the abrasion resistance requirement.

Claims

1, a kind of blanking plug device, it comprises blanking plug housing (1), it is characterized in that: on blanking plug housing (1), be provided with the water nozzle valve seat (2) that has the hole, the movable water nozzle spool (3) that its hole all can be blocked or be opened wide is housed in the hole of water nozzle valve seat (2), the power transmission shaft (4) that is threaded with movable water nozzle spool (3) also is housed on blanking plug housing (1).

2, blanking plug device according to claim 1, it is characterized in that: power transmission shaft (4) is made up of joint a, the axle b and the drive screw c that have a cone, the end of drive screw c is threaded with spool (3), being provided with cross sectional shape at the other end of screw rod c is oblong hole, an end section shape that has the axle b of cone also is to be connected with it in Long Circle and the Long Circle hole of inserting screw rod c, and the other end that has the axle b of cone is connected with joint a by pin d.

3, blanking plug device according to claim 2, it is characterized in that: the front end of joint a is shaped as the polygon prism planform.

4, blanking plug device according to claim 1 and 2, it is characterized in that: be provided with two slotted eyes that communicate with its inner chamber in the two sides of blanking plug housing (1), in two slotted eyes, be provided with limited block (5), two limited blocks (5) are connected in the blanking plug housing (1) by pin (6) respectively, the cone that has the axle b of cone can contact with two limited blocks (5), the axle that has cone also is with spring base (7) and spring (8) on the b, and spring base (7) is fixed on the b who has cone by steady pin (9).