CN202249987U - Anti-sulfur-slip ejector - Google Patents

Abstract

The utility model discloses an anti sulphur smooth sprayer belongs to oil gas field exploitation field. The sprayer includes spray gun seat, spray gun body and sliding sleeve, the spray gun seat with the spray gun body is hollow tubular structure, spray gun seat upper portion with the spray gun body lower part is through threaded connection, be equipped with a plurality of nozzle bores on the spray gun body middle part pipe wall, be equipped with the nozzle in the nozzle bore, the cross-section of sliding sleeve is cyclic annular, the external diameter of sliding sleeve with the internal diameter of spray gun body is the same, the sliding sleeve is located this internal to the spray gun, and cover a plurality of nozzles, the lower part of sliding sleeve is fixed through a plurality of pins spray gun body lower part, when the pin is cut off, the sliding sleeve slides in the spray gun seat. The utility model discloses need not to take the area and lift the tubular column and can realize the successive layer fracturing, widen the application scope of hydraulic jet successive layer fracturing technology greatly, make it obtain the wide application.

Description

The sliding ejector of a kind of anti-sulphur

Technical field

The utility model relates to the exploitation of oil-gas field field, particularly a kind of anti-sulphur sleeve type ejector.

Background technology

There is numerous multilayered reservoir gas reservoir in sulfur-bearing gas field, Sichuan, for example gas field, Huanglong field, Mo Xi gas field, gas ore deposit, Chongqing etc.These gas reservoirs show the many and characteristic such as layer is thin, the individual layer production capacity is low, the gas field development benefit is low of layer mostly.This type reservoir; Must implement separate stratum fracfturing in the vertical, mining-employed reserves at utmost, and to vertically going up the nearly sand fracturing more than 5 layers; Adopt conventional separate stratum fracfturing instrument to be difficult to realize, sulfur-bearing jetting successively pressure break is the most effectively technology that solves this difficult problem.

After the very crucial step of existing sulfur-bearing hydro-jet fracturing technology was exactly the intact one deck of pressure break, band presses to be carried tubing string to next target zone and carries out the pressure break second time.

In the process that realizes the utility model, the inventor finds that there is following problem at least in prior art: because band presses the risk of carrying tubing string in sour gas well, make the jetting popularization of fracturing technology successively be restricted.

The utility model content

The utility model is in order to solve the deficiency that exists in the prior art, provides a kind of anti-sulphur sliding ejector, need not band and presses and carry tubing string and can realize pressure break successively.

The utility model solves the technical scheme that its technical problem adopted:

The sliding ejector of a kind of anti-sulphur, said ejector comprises spray gun seat, spray gun body and sliding sleeve, said spray gun seat and said spray gun body are hollow tubular structure; Said spray gun seat top and said spray gun body bottom are through being threaded, and said spray gun body middle part tube wall is provided with a plurality of nozzle bores, is provided with nozzle in the said nozzle bore; The cross section of said sliding sleeve in the form of a ring, the external diameter of said sliding sleeve is identical with the internal diameter of said spray gun body, said sliding sleeve is positioned at said spray gun body; And cover said a plurality of nozzle; In said spray gun body bottom, when said pin was cut off, said sliding sleeve slipped in the said spray gun seat through a plurality of dowel fixes in the bottom of said sliding sleeve.

Further, the upper end of said sliding sleeve is provided with ball seat, and said ball seat bottom is provided with through hole.

Further, said spray gun seat and said spray gun body are through O type seal ring seal.

Further, said sliding sleeve and said spray gun body are through O type seal ring seal.

Further, said pin and said spray gun body are through O type seal ring seal.

Particularly, said a plurality of nozzle bore in the shape of a spiral shape be distributed in said spray gun body middle part.

Particularly, the cross section of said nozzle is the T type, and said nozzle bore is a T type groove, and said nozzle and said nozzle bore are through being threaded.

Further, said nozzle and said nozzle bore are through O type seal ring seal.

The beneficial effect of the technical scheme that the utility model embodiment provides is: through the sliding sleeve of latus rectum in the difference is set in the ejector of different layers; When certain layer is carried out pressure break; Select for use the ball that is complementary with this certain layer sliding sleeve latus rectum to cut off the pin of this sliding sleeve; This injector nozzle is communicated with injector channels, and high-pressure water jet is penetrated out sleeve pipe and this certain layer through nozzle, presses and carries tubing string and can realize pressure break successively thereby need not band; Widened the jetting scope of application of fracturing technology successively greatly, it is used widely.

Description of drawings

In order to be illustrated more clearly in the technical scheme of the utility model embodiment; To do one to the accompanying drawing that uses among the embodiment below introduces simply; Obviously, below listed accompanying drawing only be some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is that the sliding ejector of anti-sulphur that the utility model embodiment provides partly cuts open figure.

In the accompanying drawing, the component list of each label representative is following:

1, spray gun seat, 2, the spray gun body, 3, sliding sleeve, 4, nozzle bore, 5, nozzle, 6, pin, 7, O type joint ring, 8, through hole.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model embodiment is done to describe in detail further below.

The utility model embodiment provides a kind of anti-sulphur sliding ejector, is mainly used in the motionless pipe of multilayered reservoir sulfur-bearing oil gas well and serially adds the sand pressure break, is fit to operating pressure 0～60MPa, 0～90 ℃ of operating temperature, ", 7 " the sleeve pipe multilayer spray pressure break that is fit to 51/2.Its principle is to utilize tubing transmission pressure to penetrate high-pressure water jet from nozzle to penetrate out sleeve pipe and payzone, realizes the communication of target zone and oil jacket, is applicable in the operation such as pressure break, acidifying successively of sulfur-bearing oil gas well.

Referring to Fig. 1, said ejector comprises spray gun seat 1,spray gun body 2 and sliding sleeve 3.As shown in Figure 1; Spray gun seat 1 is hollow tubular structure withspray gun body 2; The inboard on spray gun seat 1 top has internal thread; Thespray gun body 2 bottoms outsides has external screw thread, and spray gun seat 1 top andspray gun body 2 bottoms are through being threaded, and connecting afterwards, the cavity of spray gun seat 1 communicates with the cavity of spray gun body 2.Spray gun body 2 middle part tube walls are provided with a plurality of nozzle bores 4, are provided with nozzle 5 in the nozzle bore 4, and the cross section of slidingsleeve 3 in the form of a ring; The external diameter of slidingsleeve 3 is identical with the internal diameter ofspray gun body 2, and slidingsleeve 3 is positioned atspray gun body 2, and covers a plurality of nozzles 5; The bottom of slidingsleeve 3 is fixed onspray gun body 2 bottoms through a plurality ofpins 6, and whenpin 6 was cut off, slidingsleeve 3 slipped in the spray gun seat 1; Through the size that the quantity that changespin 6 can be regulated the pressure of opening slidingsleeve 3,spray gun body 2 tops are connected with oil pipe.

The sliding ejector of the anti-sulphur that the utility model embodiment provides is through being provided with the sliding sleeve of latus rectum in the difference in the ejector of different layers; When certain layer is carried out pressure break; Select for use the ball that is complementary with this certain layer sliding sleeve latus rectum to cut off the pin of this sliding sleeve; This injector nozzle is communicated with injector channels, and high-pressure water jet is penetrated out sleeve pipe and this certain layer through nozzle.For example, certain well has five layers and treats fractured layer, when playing oil pipe; Transfer five ejectors five layers of position of treating the fractured layer correspondence, bottom ejector is not provided with sliding sleeve, directly pressure break; Latus rectum increases from the bottom to top successively in the sliding sleeve of other four ejectors, and latus rectum is minimum in the layer sliding sleeve promptly second from the bottom, and the ball of latus rectum coupling is cast the back smoothly through other sliding sleeves of three layers in diameter and the layer sliding sleeve second from the bottom; Give its sliding sleeve with impact force during to second from the bottom layer, cut off the fixedly pin of sliding sleeve, sliding sleeve slides downwards to spray gun seat inner chamber; Nozzle is communicated with the spray gun body interior, thereby high-pressure water jet sprays the pressure break that realizes this layer through nozzle, other layers are then because the obstruct of ejector sliding sleeve; Can't mass flowing nozzle, in like manner get through other 3 layers.

Therefore the sliding ejector of anti-sulphur that provides of the utility model embodiment need not band and presses and carry tubing string and can realize pressure break successively, has widened the jetting scope of application of fracturing technology successively greatly, and it is used widely.

Descend for ease the pitching body to interrupt thesliding sleeve 3 with its coupling, the upper end of slidingsleeve 3 is provided with ball seat, and said ball seat bottom is provided with through hole 8, and through hole 8 can make the high-pressure water jet circulation.Said ball seat good airproof performance, anti-high pressure.

Sealing in order to guarantee that each position connects in the utility model embodiment, spray gun seat 1 seals through Otype joint ring 7 withspray gun body 2, and slidingsleeve 3 andspray gun body 2 are through 7 sealings of O type joint ring, andpin 6 andspray gun body 2 pass through 7 sealings of O type joint ring.

A plurality of nozzle bores 4 shape in the shape of a spiral are distributed inspray gun body 2 middle parts, and each ejector can design the number of nozzle bore 4 according to the difference of on-the-spot oil gas well, are generally 6-8.Because the ball seat sealing of slidingsleeve 3 upper ends is good, slidingsleeve 3 lower ends are through Otype joint ring 7 sealing, thereforepin 6 do not cut off before slidingsleeve 3 block nozzle bore 4, high-pressure water jet can't pass through nozzle bore 4; Afterpin 6 was cut off, distributed nozzle made high-pressure water jet penetrate out sleeve pipe and payzone more easily twist.

As shown in Figure 1, the connection of nozzle 5 for ease, the cross section of nozzle 5 is the T type, and nozzle bore 4 is a T type groove, and nozzle 5 and nozzle bore 4 are through being threaded.Nozzle 5 passes through O type seal ring seal with nozzle bore 4.

In order to prevent hydrogen sulfide corrosion, thereby prevent that ejector from sliding, the sliding ejector of the anti-sulphur that the utility model embodiment provides adopts import 952 welding materials to process.

The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (8)

1. the sliding ejector of anti-sulphur is characterized in that said ejector comprises spray gun seat, spray gun body and sliding sleeve; Said spray gun seat and said spray gun body are hollow tubular structure, and said spray gun seat top and said spray gun body bottom are through being threaded, and said spray gun body middle part tube wall is provided with a plurality of nozzle bores; Be provided with nozzle in the said nozzle bore; The cross section of said sliding sleeve in the form of a ring, the external diameter of said sliding sleeve is identical with the internal diameter of said spray gun body, said sliding sleeve is positioned at said spray gun body; And cover said a plurality of nozzle; In said spray gun body bottom, when said pin was cut off, said sliding sleeve slipped in the said spray gun seat through a plurality of dowel fixes in the bottom of said sliding sleeve.

2. the sliding ejector of anti-sulphur according to claim 1 is characterized in that the upper end of said sliding sleeve is provided with ball seat, and said ball seat bottom is provided with through hole.

3. the sliding ejector of anti-sulphur according to claim 1 is characterized in that said spray gun seat and said spray gun body are through O type seal ring seal.

4. the sliding ejector of anti-sulphur according to claim 1 is characterized in that said sliding sleeve and said spray gun body are through O type seal ring seal.

5. the sliding ejector of anti-sulphur according to claim 1 is characterized in that said pin and said spray gun body are through O type seal ring seal.

6. the sliding ejector of anti-sulphur according to claim 1 is characterized in that, said a plurality of nozzle bores shape in the shape of a spiral are distributed in said spray gun body middle part.

7. the sliding ejector of anti-sulphur according to claim 1 is characterized in that the cross section of said nozzle is the T type, and said nozzle bore is a T type groove, and said nozzle and said nozzle bore are through being threaded.

8. the sliding ejector of anti-sulphur according to claim 7 is characterized in that said nozzle and said nozzle bore are through O type seal ring seal.

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