CN2325510Y

CN2325510Y - Three phase flow and composite perforating and fracturing equipment

Info

Publication number: CN2325510Y
Application number: CN 97242107
Authority: CN
Inventors: 卫小平
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-14
Filing date: 1997-11-14
Publication date: 1999-06-23
Anticipated expiration: 2007-11-14

Abstract

The utility model relates to three phase flow and composite perforating and fracturing equipment which is composed of a perforating bullet, a detonating fuse, a perforating gun body, a bulkhead, a composite pharmaceutical tablet, a carborundum disc, etc. The utility model is characterized in that a cable is used for detonating a detonator. The detonating fuse transmits the explosion downward to detonate the perforating bullet and the composite pharmaceutical tablet, in which the composite pharmaceutical tablet generates a great deal of gas of high temperature and high pressure to enter the fluid jet pore passage when the perforating bullet forms a fluid jet pore passage in the stratum. Simultaneously, the carborundum disc granule enters the place between the fluid jet pore passage and a crack. The entire perforating process is finished under the combined action of the molten metal stream flow, the high temperature and pressure flow and the carborundum disc granule flow.

Description

A kind of three-phase stream combined perforation fracturing device

The utility model device belongs to the career field that the oil gas well is opened oil reservoir.Be mainly used in the oil gas well development and improve seepage area at nearly well band, penetrate sleeve pipe, cement sheath and part stratum directly make pit shaft and combination of zones, thereby form a water conservancy diversion district in the near wellbore zone.

Present domestic patent CN2188649Y has reported a kind of synergy perforator, is mainly perforating bullet and adopts 89-III type, and gunpowder is a rifle, the propellant powder that big gun uses, and perforating gun adopts the 89 type body of a guies, generally adopts bullet under the cable.Full casting type overall structure.Between every launch hole bullet, detonating fuse is discontinuous, the artificial disconnection.

The purpose of this utility model provides a kind of three-phase stream combined perforation fracturing device, utilize the compound tablet of convex-concave shape, work in coordination, detonating fuse can be passed through continuously, and can control and differ 90 ° of phase angles between bullet and bullet, control detonation is to the metastable state of detonation in energy discharges to make explosive and solid propellant, and with metal liquid stream, high temperature, high pressure draught and sand sheet grain flow are realized combined perforation fracturing.

To achieve these goals, the solution that the utility model adopts is: in the perforating and fracturing device, solid propellant is the sheet tablet of convex-concave shape, there is through hole the centre, detonating fuse can pass through continuously, phase place is by the compound tablet of convex-concave shape between bullet and the bullet, and nonmetal box is controlled and differed 90 ° of phase angles between each bullet.Earlier bomb tube is packed into through hole on the medicine box cylinder, make the centre bore on the bomb tube, center line is perpendicular to the center line of the through hole on the medicine box cylinder, arc limit on bomb tube and medicine box cylinder through hole intersect, coating adhesive is solidified into integral body on the face, the sand sheet is installed between the compound tablet of the convex concave cooperation place, the garden shape hole of detonating fuse by the compound tablet of spill with continue the centre bore by the compound tablet of convex downwards after perforating bullet links to each other again in draw the straight-through plug of the other end of detonating fuse, be respectively charged into the compound tablet of convex concave at the two ends of medicine box, suit forms integral body, cooperates the half-twist assembling can make the perforating bullet in the bomb tube of packing into form 90 ° of phase places variations.

Medicine box respectively has four locating rectangle grooves in two ends up and down.

Advantage of the present utility model:

1, lined-cavity charge and the compound tablet of convex concave are mutually combined, constitute a kind of split suit bonding and form whole.

2, igniting has simultaneously vertically been avoided perforation, the hysteresis that pressure break is mutual.

3, simple to operate, be easy to site operation.

4, reduction expense, the cycle that brings in shortens.

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

Fig. 1 is the single-shot sectional arrangement drawing of a kind of three-phase stream of the utility model combined perforation fracturing device.

Fig. 2 is the whole sectional arrangement drawing of a kind of three-phase stream of the utility model combined perforation fracturing device.

Fig. 3, Fig. 4, Fig. 5 are the medicine box schematic diagrames of a kind of three-phase stream of the utility model combined perforation fracturing device.

Fig. 6 is the bomb tube schematic diagram of a kind of three-phase stream of the utility model combined perforation fracturing device.

Fig. 7, Fig. 8 are the compound tablet schematic diagrames of spill of a kind of three-phase stream of the utility model combined perforation fracturing device.

Fig. 9, Figure 10 are the compound tablet schematic diagrames of convex of a kind of three-phase stream of the utility model combined perforation fracturing device.

Figure 11, Figure 12 are the sand sheet schematic diagrames of a kind of three-phase stream of the utility model combined perforation fracturing device.

Analyse and observe in a kind of three-phase flow combined perforation fracturing device single-shot assembling shown in Figure 1 Among the figure, by sand sheet 15, medicine box 16, the compound tablet 17 of spill, bomb tube 18, primacord 19, perforating bullet 20, the compound tablet 21 of convex forms; The medicine box of earlier bomb tube 18 being packed into After 16 adhesive solidifications were integral body, it was compound to be respectively charged into concave-convex at the two ends of medicine box 16

Tablet

17,21 is equipped with sand sheet 15 in the compound tablet 17 of concave-convex, 21 middle cooperation place, Bomb tube 18 is in-built to enter perforating bullet 20, and primacord 19 is by the garden shape of the compound tablet 17 of spill Hole 28 (Fig. 8) links to each other with perforating bullet 20 afterwards and the centre bore 31 of the compound tablet 21 of convex (figure 10) draw primacord 19 in and form integral body through concavo-convex

compound tablet

17,21 suits, make and lead But quick-fried rope 19 propagation of explosions are given each launch hole bullet 20.

In a kind of three-phase flow combined perforation fracturing device profile shown in Figure 2, by Cable 1, magnetic locator 2, high pressure skewer pin 3, exploder and big gun head 4, electric cap 5, Propagation squib 6, propagation squib 7, convex retaining locator 8, screw 9, perforating gun 10, relief hole 11, jam 12, spill retaining locator 13, plug 14 form; Penetrate The top of the hole body of a gun 10 connects exploder 4, high pressure skewer pin 3, magnetic locator 2, cable 1 He The middle part that land cable car, instrument cab are connected exploder 4 is equipped with electric cap 5 and is expanded quick-fried Pipe 6,7. The compound tablet 17 of spill (Fig. 1) is connected convex end in that perforating gun 10 is interior Move back locator 8, the compound tablet 21 of convex (Fig. 1) connects spill retaining locator 13, adopts Be fixed on the inwall of perforating gun with screw 9, relief hole 11 and jam are arranged on the body of a gun 12, forming detonation, the stage of detonation makes sand sheet 15 (Fig. 1) and jam 12 fragmentations or beats Open in the compound tablet 17 of concave-convex, 21 (Fig. 1) burning and produce a large amount of high temperature and high pressure gas, Through preforation tunnel and relief hole 11, when rushing at cumulative metal flow jet duct, big Sand sheet 15 (Fig. 1) chip of amount also is carried and enters. At the bottom of perforating gun 10 dress There is plug 14 to play the guiding role.

Fig. 3, Fig. 4, a kind of three-phase flow combined perforation fracturing device medicine box shown in Figure 5 show The outside rectangular channel 22 bonding covers of intention Chinese medicine box 16 are loaded onto

arc boss

26,29, There is through hole 23 can put into bomb tube 18 at the middle part of medicine box 16, perforating bullet 20.

In a kind of three-phase flow combined perforation fracturing device bomb tube schematic diagram shown in Figure 6, The outside arc-shaped side 24 of bomb tube 18 (Fig. 1) intersects with medicine box 16 (Fig. 1) cylinder through hole 23 Coating adhesive is solidified into integral body on the face, in the centre of bomb tube 18 (Fig. 1) centre bore 25 is arranged Primacord 19 (Fig. 1) is passed through.

Fig. 7, Fig. 8, Fig. 9, Figure 10 are a kind of three-phase flow combined perforation fracturing device convex concaves Compound tablet schematic diagram is shaped with square groove 27 and garden shape in the compound tablet 17 of spill Hole 28, outside are shaped with arc boss 26, are shaped with square on the compound tablet 21 of convex Body 30 and centre bore 31, convex step 32, the outside is shaped with arc boss 29. Multiple Among the perforating bullet, every launch hole bullet is by the compound tablet 17 of convex concave, 21 and

arc Step

26,29 and square groove 27 mould to dress up with square body 30 mutual gluings and be integral body.

Figure 11, Figure 12 are a kind of three-phase flow combined perforation fracturing device sand sheet schematic diagrames:

Sand sheet 15 (figure is equipped with in the cooperation place in the middle of the compound tablet 17 of concave-convex, 21 (Fig. 1) 1) outside is shaped with arc boss 33, sand sheet 15, middle part square hole 34 and concave-convex The square groove 27 (Fig. 8) of compound tablet 17,21 (Fig. 1) and square body 30 (Figure 10) Adhesive solidification becomes integral body.

Embodiment:

(1) earlier bomb tube 18 is packed into through hole 23 on medicine box 16 cylinders, make centre bore 25 center lines on the bomb tube 18 perpendicular to through hole 23 center lines on medicine box 16 cylinders, intersect with medicine box 16 cylinder through holes 23 on arc limit 24 on bomb tube 18, and coating adhesive is solidified into integral body on the face.Medicine box 16 is to be made by nonmetals, is by paper tube or pvc pipe as phenolic resins or pvc pipe, bomb tube.

(2) bomb tube 18 and medicine box 16 adhesive solidifications are integral body after, to place the

compound tablet

17,21 of concave-convex at the two ends of medicine box 16 respectively, and the arc boss 29 on arc boss 26 on the compound tablet 17 of spill and the compound tablet 21 of convex is put into the rectangular channel 22 at the two ends of medicine box 16, and, can form a three-phase stream combined perforation fracturing bullet when in bomb tube 18, packing perforating bullet 20 into its gluing adhesive solidification.The compound tablet the 17, the 21st of concave-convex, a kind of solid composite propellant, pouring moulding in mould.Perforating bullet 20 adopts the energy gathering type perforating bullet, as 89-III type.

(3) among the multiple three-phase stream combined perforation fracturing bullet of forming, every three-phase stream combined perforation fracturing bullet is moulded dress by the square body 30 of the compound tablet 21 of convex with next square groove 27 mutual gluing of sending out the compound tablet 17 of spill of three-phase stream combined perforation fracturing bullet, and can overlap betwixt and load onto sand sheet 15, and can utilize square body 30 and square groove 27 half-twists, the 90 ° of phase places of the perforating bullet 20 in the bomb tube 18 of can realizing packing into change, and with through hole 23 and perforating bullet 20 on shape hole 28, garden and the bomb tube 18 detonating fuse 19 uninterruptedly are connected at multiple perforating bullet 20 and therebetween sand sheet 15 and the centre bore 31 of the compound tablet 21 17 of convex concave.After the connection, through land cable car control energising, exploder 4 is ignited, make detonating fuse 19 propagation of explosions give each launch hole bullet 20 through propagation squib 6,7, make sand sheet 15 and jam 14 broken or open in the stage that forms detonation, detonation at the

compound tablet

17,21 of concave-convex, burning produces a large amount of high temperature and high pressure gas, and a large amount of sand sheet 15 chips also were carried and enter when process preforation tunnel and relief hole 11 rushed at cumulative metal flow jet duct.Make hole and crackle in the stratum, the crack effect of being supported, in the perforation process, because of the metal flow of cumulative is arranged, the air-flow of HTHP, the grain flow of sand sheet 15 are called three-phase with this perforating and fracturing effect and flow the combined perforation fracturing technology.Concave-convex retaining locator 8,13 adopts the 45# steel to make.Sand sheet 15 adopts quartz sand and cementing agent to make in mold pressing.It is stepped holes of processing according to certain rules on perforating gun 10 that perforating gun 10 adopts the N80# steel to make relief hole 11, and jam 12 employing steel discs are done to vulcanize above the base rubber seal.

The 12-13 launch hole bullet 20 of in the perforating gun 10 of every meter length, can packing into, and between cooperatively interacting, every bullet and bullet add 11-12 sheet sand sheet 15, after detonating fuse 19 continues to pass through 12-13 launch hole bullet 20, two ends connect convex retaining locator 8 to the compound tablet 17 of spill respectively in perforating gun 10, the compound tablet 21 of convex connects spill retaining locator 13, and the connection between the perforating gun 10 can be finished the propagation of explosion of connection and sealing and detonating fuse 19 by producer's shaping standard joint and the combination of corresponding accessory.Perforating gun 10 topmosts connection exploder 4, high pressure skewer pin 3, magnetic locator 2, cable 1 are connected with land cable car instrument cab, and operation is aimed at the energising of perforation layer position and opened quick-fried work, and perforating gun 10 bottommosts connect plug 14.

Claims

1, a kind of three-phase stream combined perforation fracturing device, by perforating bullet and detonating fuse, perforating gun, plug, exploder, compositions such as propagation squib, it is characterized in that: bomb tube (18) through hole (23) on medicine box (16) cylinder and centre bore (25) center line on the bomb tube (18) the center line of packing into perpendicular to medicine box (16) and through hole (23), intersect with medicine box (16) cylinder through hole (23) on arc limit (24) on the bomb tube (18), the garden shape hole (28) of detonating fuse (19) by the compound tablet of spill (17) links to each other with perforating bullet (20) and draws the straight-through plug (14) of the other end of detonating fuse (19) in the centre bore (31) of back and the compound tablet of convex (21), be respectively charged into the compound tablet of concave-convex (17) at the two ends of medicine box (16), (21) suit forms integral body, sand sheet (15) is equipped with in middle cooperation place, cooperate the half-twist assembling, can make the perforating bullet (20) in the bomb tube of packing into (18) form 90 ° of phase places variations.

2, a kind of three-phase stream combined perforation fracturing device according to claim 1 is characterized in that: medicine box (16) two ends up and down respectively has four locating rectangle grooves.