CN101178005B - Modularized perforating tool - Google Patents
Modularized perforating tool Download PDFInfo
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- CN101178005B CN101178005B CN2007101957373A CN200710195737A CN101178005B CN 101178005 B CN101178005 B CN 101178005B CN 2007101957373 A CN2007101957373 A CN 2007101957373A CN 200710195737 A CN200710195737 A CN 200710195737A CN 101178005 B CN101178005 B CN 101178005B
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- alignment pin
- axis body
- guider
- gun breech
- breech
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Abstract
The invention relates to a modularization perforator, mainly solving the problem which is difficult to solve in the current technology to finish orientation perforation in an inclined shaft. The invention is characterized in that a plurality of monomers are in tandem array in due course to form the modularization perforator; each monomer comprises a guide chase coupling (3), an upper axis body (4), a righting disk (6), a barrel (8) and a breech guide apparatus (17), wherein, the guide chase coupling (3) is of hollow tube, the lowest end of an upper elliptic section (18) thereof is provided with a guide groove (16); a breech inner wall fixed pin (14) is positioned inside the breech guide apparatus (17) and the guide chase coupling (3), the upper axis body (4), the righting disk (6), the barrel (8) and the breech guide apparatus (17) are connected in sequence to form a monomer of the modularization perforator. The fixed combination between the gun tip of a perforator monomer and the breech of another perforator monomer can be finished under the well, to ensure the perforating charge in the barrel can perforate according to preset perforation direction, thereby realizing the orientation perforation.
Description
Technical field:
The present invention relates to a kind of being applied in the oil field perforation technology field, be used to carry out the perforating system of oil field prospecting, exploitation perforation completion.
Background technology:
Conventional perforation completion mode has tubing conveyed perforation (tcp) and cable perforation dual mode.During the cable perforation, cable carries perforator and rotates arbitrarily in the down-hole, causes preforation tunnel direction and geographic north to being angle at random; And during tubing conveyed perforation (tcp), whole perforation tubing string may rotate arbitrarily in the down-hole, and preforation tunnel direction and geographic north be to also being at random, and the connection between every post perforating gun also is into arbitrarily angled, and the perforation direction of perforating bullet also just can't be determined.If when requiring the perforation direction of perforating bullet and geographic north at an angle, that is to say when requiring oriented perforation that above-mentioned two kinds of gun perforation process just obviously can not meet the demands.Along with science and technology development, the technician at present more existing domestic oil fields has adopted the technology of oil pipe conveying-type oriented perforation to solve the problem of straight well oriented perforation, but, still do not find a kind of method preferably to solve in the prior art for general inclined shaft oriented perforation problem.
Summary of the invention:
In order to solve the problem that prior art is difficult to finish oriented perforation in the inclined shaft, the invention provides a kind of modularized perforating tool, the rifle head that this kind modularized perforating tool can be realized every modularized perforating tool monomer in the down-hole with on the gun breech of a modularized perforating tool monomer connect automatically, and keep the direction unanimity.So just can be so that all perforating bullets that are installed in the interior gun barrel of modularized perforating tool monomer can reach the purpose that need not rotate tubing string and realize oriented perforation according to the perforation direction perforation that designs in advance.
Technical scheme of the present invention is: this kind modularized perforating tool, being joined in turn by some monomers head and the tail forms, each monomer mainly by guide sub, go up axis body, set upright dish, gun barrel and gun breech guider and constitute.Wherein, described guide sub is a hollow tubular, and an oval tangent plane is arranged on it, and the lowermost end that is positioned at this tangent plane has a gathering sill; Described upward axis body is how step-like cylinder, and the thin end in its top has external screw thread for connecting by quick-fried detonator protective cap, and the center has the detonating fuse fairlead, and there is axis body alignment pin on a bottom.How step-like described gun breech guider also be, and one end inner hollow constitutes introduction chamber, and a gun breech inwall alignment pin is arranged in the cavity, and the width of this alignment pin is consistent with the width of gathering sill, and cavity has a gun breech guider alignment pin outward; The other end is an entity, has a hole and introduces for detonating fuse, and have internal thread for connecting main quick-fried detonator protective cap.Described gun barrel hollow, its two ends have internal thread, have in the threaded portion with inner perforating bullet orientation and be a last axis body locating slot and a gun breech guider locating slot of determining angle, the position on the degree of depth of above-mentioned two locating slots, width and the circumference is consistent with the position on height, width and the circumference of last axis body alignment pin, gun breech guider alignment pin respectively.The axial location deviation angle fixed angle that forms between described gun breech inwall alignment pin and the gun breech guider alignment pin.The described fish eyelet that has the band inclined-plane around the dish of setting upright, center cavity is that spring is adjusted the chamber, built-in ring spring and steel ball, steel ball stops that because of the elastic force of ring spring and the inclined-plane of fish eyelet the fraction ball body protrudes in outside the fish eyelet.Above-mentioned guide sub, last axis body, set upright dish, gun barrel, the gun breech guider connects the back successively and constitutes a modularized perforating tool monomer, wherein, be connected for interference fit between last axis body top step surface and the guide sub internal face, after the connection, gathering sill needs to be located along the same line with gun breech inwall alignment pin, setting upright the fastening force of dish by ring spring is fixed in outside the last axis body middle-end step surface that is positioned at the guide sub below, last axis body and gun breech guider are by last axis body alignment pin, after gun breech guider alignment pin slips into last axis body locating slot on the gun barrel and gun breech guider locating slot location, respectively by locking behind the internal thread that has the split type button lobe of two couple who lock handwheel joint screw-in gun barrel two ends.
The present invention has following beneficial effect:
At first, the two ends of gun barrel have respectively and perforating bullet orientation last axis body locating slot and gun breech guider locating slot at an angle, have respectively and these two alignment pins that locating slot matches on axis body and the gun breech guider and go up, make the last axis body that constitutes on the same modularized perforating tool can be connected according to predetermined fixed angle thus with the gun breech guider;
Secondly, because a gun breech inwall alignment pin is arranged in the gun breech guider, and on the guide sub on last axis body of can being located by connecting an oval tangent plane is arranged, and the lowermost end that is positioned at this tangent plane has a gathering sill, make thus when with after in modularized perforating tool monomer the directed cavity seat in the gun breech guider behind the guide sub of previous modularized perforating tool monomer, directed cavity in the modularized perforating tool monomer in back in the gun breech guider can rotation be descending automatically under the barrier effect of gun breech inwall alignment pin at the oval tangent plane on the guide sub of action of gravity lower edge, slip in the gathering sill until gun breech inwall alignment pin, realized being located by connecting between former and later two modularized perforating tool monomers thus;
Once more, this programme has designed the fish eyelet on inclined-plane in setting upright dish, ring spring and steel ball have been installed in cavity, with whole set upright the dish be fixed on the axis body after, steel ball is under the inclined-plane barrier effect of the resilient force of spring and fish eyelet, the sub-fraction of steel ball protrudes in fish eyelet, can advance on the inclined-plane, corrective action lower edge of spring and steel ball when making a modularized perforating tool that whole assembling finishes thus in being lowered to the inclined shaft casing wall, solved the transmission problem of the modularized perforating tool in general inclined shaft;
At last; install in the protective cap in guide sub by quick-fried detonator; lead quick-fried detonator and in the gun breech guider, install; by connecting by the detonating fuse of drawing in the detonating fuse fairlead in the last axis body by perforating bullet in quick-fried detonator, the gun barrel and main quick-fried detonator; lead quick-fried detonator and adopted the mode of contactless isolation propagation of explosion between the quick-fried detonator, thereby guaranteed the smooth propagation of explosion between a plurality of modularized perforating tools.
In sum, exactly because there are above many improvements, all modularized perforating tool monomers can have been realized rotating the purpose that tubing string is finished oriented perforation according to predefined perforation direction perforation.This method both can be applicable to also can be used in the straight well oriented perforation in the inclined shaft oriented perforation.
Description of drawings:
Fig. 1 is the structure sectional view of modularized perforating tool monomer.
Fig. 2 is the structure sectional view after two modularized perforating tool monomers connect.
Fig. 3 is the structural representation of the guide sub of composition module perforator monomer.
Fig. 4 is the schematic appearance of the bearing block of composition module perforator monomer.
Fig. 5 is the schematic appearance of setting upright dish of composition module perforator monomer.
Fig. 6 is the schematic appearance of the button lobe joint of composition module perforator monomer.
Fig. 7 is the schematic appearance of the last axis body of composition module perforator monomer.
Fig. 8 is the schematic appearance of the gun barrel of composition module perforator monomer.
Fig. 9 is the schematic appearance of the gun breech guider of composition module perforator monomer.
Figure 10 is the sectional drawing of gun breech inwall alignment pin in the gun breech guider.
Figure 11 is the schematic diagram that cooperates of setting upright ring spring and steel ball in the dish.
Figure 12 is the lexical or textual analysis figure of axial location deviation angle θ.
1-is by quick-fried detonator protective cap among the figure, and 2-is by quick-fried detonator, the 3-guide sub; the last axis body of 4-, the 5-bearing block, 6-sets upright dish; button lobe joint on the 7-gun barrel, 8-gun barrel, the quick-fried detonator of 9-master; the quick-fried detonator protective cap of 10-master, 11-gun barrel be button lobe joint down, the 12-introduction chamber; the 13-weep hole, 14-gun breech inwall alignment pin, 15-fish eyelet; the 16-gathering sill, 17-gun breech guider, the oval tangent plane of 18-; 19-load-bearing edge, the 20-spring is adjusted the chamber, and 21-locks handwheel; 22-detonating fuse fairlead, the last axis body alignment pin of 23-, the last axis body locating slot of 24-; 25-gun breech guider locating slot; 26-gun breech guider alignment pin, 27-ring spring, 28-steel ball.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:.
This kind of modularized perforating tool is to be joined in turn by some monomers head and the tail to forming, and Fig. 1 be the structure sectional view of modularized perforating tool monomer, as shown in Figure 1, each monomer mainly by guide sub 3, go up axis body 4, set upright coil 6, gun barrel 8 and gun breech guider 17 constitute.
The structure of each building block and annexation to each other are described in detail in detail below:
Wherein, the structural representation of described guide sub 3 as shown in Figure 3, main body is a hollow tubular, and an oval tangent plane 18 is arranged on it, the lowermost end that is positioned at this tangent plane has a gathering sill 16.Obviously the purpose of making so oval tangent plane is to form an inclined-plane, and gathering sill 16 is positioned at the lowermost end on this inclined-plane, so structure then can make gun breech inwall alignment pins in the gun breech guider 17 14 in the back modularization perforator monomer slip in the gathering sills 16 on the guide sub 3 the connection location of two modularization perforator monomers before and after realizing automatically under action of gravity.
As shown in Figure 7; described upward axis body 4 is how step-like cylinder; the thin end in its top has external screw thread for connecting by quick-fried detonator protective cap 1; the center has detonating fuse fairlead 22; there is axis body alignment pin 23 on a bottom; for convenience of description, the outer step surface with axis body on this is called top step surface A1, small stair face B1, middle-end step surface C1 and bottom step surface D1.
As shown in Figure 9, how step-like described gun breech guider 17 also be, one end inner hollow, constitute introduction chamber 12, a gun breech inwall alignment pin 14 is arranged, as shown in figure 10 in the cavity, the width of this alignment pin is consistent with the width of gathering sill 16, and in addition, cavity has a gun breech guider alignment pin 26 outward.The other end of this gun breech guider is an entity, has a hole and introduces for detonating fuse, and have internal thread for connecting main quick-fried detonator protective cap 10, the gun breech deflector portion that installs main quick-fried detonator 9 and connect main quick-fried detonator protective cap 10 can be called gun breech.
As shown in Figure 8, described gun barrel 8 hollows, its two ends have internal thread, have in the threaded portion with inner perforating bullet orientation and be a last axis body locating slot 24 and a gun breech guider locating slot 25 of determining angle, the position on the degree of depth of above-mentioned two locating slots, width and the circumference is consistent with the position on height, width and the circumference of last axis body alignment pin 23, gun breech guider alignment pin 26 respectively.Will guarantee the fixed angle of the axial location deviation angle θ of formation between described gun breech inwall alignment pin 14 and the gun breech guider alignment pin 26 simultaneously, the lexical or textual analysis figure of axial location deviation angle θ as shown in figure 12.Such structure, its role is to make being connected to form between axis body, gun barrel, the gun breech guider to be located by connecting, final purpose be to make the gun breech inwall alignment pin in the gun breech guider direction can and the perforation orientation of inner perforating bullet between the angle that forms be on the definite angle, like this when rmc monomer, perforation direction in just can clear and definite each monomer, and realize control.For the ease of improving the accuracy rate of installing and controlling, preferred axial location deviation angle θ is 90 degree or 0 degree.
As shown in Figure 5, the described dish 6 of setting upright has the fish eyelet 15 of being with the inclined-plane all around, and center cavity is that spring is adjusted chamber 20, built-in ring spring 27 and steel ball 28, steel ball 28 stops that because of the elastic force of ring spring 27 and the inclined-plane of fish eyelet 15 the fraction ball body protrudes in outside the fish eyelet 15.During connection, set upright dish and 6 be surrounded on axis body, by be threaded or interference fit in middle-end step surface C1 place, the contact surface on its body is C.Figure 11 is the schematic diagram that cooperates of setting upright ring spring and steel ball in the dish, design this structure of setting upright dish, the angle that purpose is to utilize the elasticity of ball and spring to regulate modularized perforating tool monomer when entering in the inclined shaft sleeve pipe automatically makes it to be able in the inclined shaft of general gradient normally descending.
As shown in Figure 1; above-mentioned guide sub 3, go up axis body 4, set upright dish 6, gun barrel 8, gun breech guider 17 connect modularized perforating tool monomer of back formation successively, can be called the rifle head by quick-fried detonator 2 and by quick-fried detonator protective cap 1 and guide sub 3 with what connect with last axis body.Wherein, be connected for interference fit between the top step surface A1 of last axis body 4 and the guide sub 3 internal face A, after the connection, gathering sill 16 needs to be located along the same line with gun breech inwall alignment pin 14, setting upright dish 6 fastening forces by ring spring 27 is fixed in outside the last axis body 4 middle-end step surface C1 that are positioned at guide sub 3 belows, last axis body 4 passes through last axis body alignment pin 23 with gun breech guider 17, after gun breech guider alignment pin 26 slips into last axis body locating slot 24 on the gun barrel 8 and gun breech guider locating slot 25 location, respectively by having the split type button lobe of the two couples joint of locking handwheel 21, promptly go up button lobe joint 7 and down button lobe joint 11 lock after screwing in the internal thread at gun barrels 8 two ends, on detain lobe joint 7 inwall D contact with the bottom step surface D1 of last axis body.Last button lobe joint 7 is identical with the basic structure of following button lobe joint 11, as shown in Figure 6, adopt split-type structural, axis body alignment pin 23, gun breech guider alignment pin 26 are passed through, the difference of these two button lobe joints is threaded end when only being to install direction is opposite.
Consider that bottom modularized perforating tool monomer will bear all weight of monomer of upper end, therefore constitute described modularized perforating tool monomer, also comprise a hollow, the edge bearing block 5 of convex ringwise, its structure such as Fig. 4 institute are not, described bearing block 5 is around the outer wall small stair face B1 place of last axis body 4 during installation, its body corresponding contact face is B, and promptly it axially is fixed on the end face B1 that sets upright between dish 6 and the guide sub 3.Described annular protrusion shape edge is called load-bearing along 19, and the outermost end circle diameter of described load-bearing along 19 is less than the outermost end circle diameter of setting upright dish 6, and greater than the outermost end circle diameter of introduction chamber 12.
Fig. 2 is the structure sectional view after two modularized perforating tool monomers connect, and among the figure, the guide sub of lower end perforator monomer inserts the directed cavity of upper end perforator monomer, is the dotted line indication in the drawings.Actual when finishing oriented perforation, at first with in the supporting tool lower going-into-well, and with its seat envelope; To locate then in the depthkeeping instrument lower going-into-well, measure the residing orientation of supporting tool and the degree of depth; According to gun parallax, the depth difference of supporting tool, be lowered to corresponding adjustment pipe nipple, adjust the angle and the degree of depth, determine the perforation direction; In the modularized perforating tool monomer that connected rifle head, gun barrel, inner firing mount, perforating bullet and gun breech lower going-into-well successively, the ignition of main quick-fried detonator is finished by detonating fuse in each monomer, by the contactless ignition between monomer rifle head and the gun breech about the ignition of the quick-fried detonator employing, above-mentioned monomer is " module " formula and is placed on the supporting tool top.The perforator that detonates is afterwards realized oriented perforation.Utilize this kind perforator, the rifle head of the modularized perforating tool monomer that every is lowered to previously in the down-hole and the gun breech of a back modularized perforating tool monomer connect automatically, and keep the direction unanimity.So just can realize all modularized perforating tools according to the perforation direction perforation that designs in advance, reach and to have rotated the purpose that tubing string is realized oriented perforation.
Claims (4)
1. modularized perforating tool, being joined in turn by some monomers head and the tail forms, each monomer mainly by guide sub (3), go up axis body (4), set upright dish (6), gun barrel (8) and gun breech guider (17) formation, wherein,
Described guide sub (3) is a hollow tubular, and an oval tangent plane (18) is arranged on it, and the lowermost end that is positioned at this tangent plane has a gathering sill (16);
Described upward axis body (4) is how step-like cylinder, and the thin end in its top has external screw thread for connecting by quick-fried detonator protective cap (1), and the center has detonating fuse fairlead (22), and there is axis body alignment pin (23) on a bottom;
How step-like described gun breech guider (17) also be, one end inner hollow, constitute introduction chamber (12), one gun breech inwall alignment pin (14) is arranged in the cavity, the width of this alignment pin is consistent with the width of gathering sill (16), the height of this alignment pin is consistent with the degree of depth of gathering sill (16), and cavity has a gun breech guider alignment pin (26) outward; The other end is an entity, has a hole and introduces for detonating fuse, and have internal thread for connecting main quick-fried detonator protective cap (10);
Described gun barrel (8) hollow, its two ends have internal thread, have in the threaded portion with inner perforating bullet orientation and be a last axis body locating slot (24) and a gun breech guider locating slot (25) of determining angle, the position on the degree of depth of above-mentioned two locating slots, width and the circumference is consistent with the position on height, width and the circumference of last axis body alignment pin (23), gun breech guider alignment pin (26) respectively;
The axial location deviation angle θ fixed angle that forms between described gun breech inwall alignment pin (14) and the gun breech guider alignment pin (26);
The described dish (6) of setting upright has the fish eyelet (15) of being with the inclined-plane all around, center cavity is that spring is adjusted chamber (20), built-in ring spring (27) and steel ball (28), steel ball (28) stops that because of the elastic force of ring spring (27) and the inclined-plane of fish eyelet (15) the fraction ball body protrudes in outside the fish eyelet (15);
Above-mentioned guide sub (3), last axis body (4), set upright dish (6), gun barrel (8), gun breech guider (17) connects the back successively and constitutes a modularized perforating tool monomer, wherein, be connected for interference fit between last axis body (4) top step surface (A1) and guide sub (3) internal face (A), after the connection, gathering sill (16) needs to be located along the same line with gun breech inwall alignment pin (14), setting upright the fastening force of dish (6) by ring spring (27) is fixed in outside last axis body (4) the middle-end step surface (C1) that is positioned at guide sub (3) below, last axis body (4) passes through last axis body alignment pin (23) with gun breech guider (17), after gun breech guider alignment pin (26) slips into last axis body locating slot (24) on the gun barrel (8) and gun breech guider locating slot (25) location, lock behind the internal thread by the split type button lobe of two couples joint (7,11) screw-in gun barrel (8) two ends that have locking handwheel (21) respectively.
2. modularized perforating tool according to claim 1, it is characterized in that: constitute described modularized perforating tool monomer, also comprise a hollow, the edge bearing block of convex (5) ringwise, described bearing block (5) is around the outer wall of last axis body (4), axially be fixed on the end face of setting upright between dish (6) and the guide sub (3) (B1), described annular protrusion shape edge is called load-bearing along (19), described load-bearing along the outermost end circle diameter of (19) less than the outermost end circle diameter of setting upright dish (6), and greater than the outermost end circle diameter of introduction chamber (12).
3. according to 1 or 2 described modularized perforating tools, it is characterized in that: the axial location deviation angle θ angle that forms between described gun breech inwall alignment pin (14) and the gun breech guider alignment pin (26) is 90 degree.
4. according to 1 or 2 described modularized perforating tools, it is characterized in that: the axial location deviation angle θ angle that forms between described gun breech inwall alignment pin (14) and the gun breech guider alignment pin (26) is 0 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007101957373A CN101178005B (en) | 2007-12-14 | 2007-12-14 | Modularized perforating tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101957373A CN101178005B (en) | 2007-12-14 | 2007-12-14 | Modularized perforating tool |
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| CN101178005A CN101178005A (en) | 2008-05-14 |
| CN101178005B true CN101178005B (en) | 2010-10-13 |
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| CN2007101957373A Active CN101178005B (en) | 2007-12-14 | 2007-12-14 | Modularized perforating tool |
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Cited By (4)
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| US11773698B2 (en) | 2018-07-17 | 2023-10-03 | DynaEnergetics Europe GmbH | Shaped charge holder and perforating gun |
| US11788389B2 (en) | 2013-07-18 | 2023-10-17 | DynaEnergetics Europe GmbH | Perforating gun assembly having seal element of tandem seal adapter and coupling of housing intersecting with a common plane perpendicular to longitudinal axis |
| US11795791B2 (en) | 2021-02-04 | 2023-10-24 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
| US11808093B2 (en) | 2018-07-17 | 2023-11-07 | DynaEnergetics Europe GmbH | Oriented perforating system |
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| CN101824978B (en) * | 2010-04-29 | 2012-12-26 | 中国石油化工集团公司 | High accuracy oriented perforator |
| CN102434132A (en) * | 2011-12-23 | 2012-05-02 | 甘肃省化工研究院 | Elastic alignment pipe component for perforation of oil and gas wells |
| CN102704899B (en) * | 2012-05-09 | 2014-12-03 | 中国石油天然气股份有限公司 | Depth and direction compensator |
| US11053782B2 (en) | 2018-04-06 | 2021-07-06 | DynaEnergetics Europe GmbH | Perforating gun system and method of use |
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| CN112228015A (en) * | 2020-10-26 | 2021-01-15 | 大庆油田有限责任公司 | Intelligent and safe perforator for cleaning pore |
| US11499401B2 (en) | 2021-02-04 | 2022-11-15 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
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| CN117307108B (en) * | 2023-11-30 | 2024-02-02 | 胜利油田新大通石油技术有限责任公司 | Downhole rotation positioning type oil pipe punching device and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11773698B2 (en) | 2018-07-17 | 2023-10-03 | DynaEnergetics Europe GmbH | Shaped charge holder and perforating gun |
| US11808093B2 (en) | 2018-07-17 | 2023-11-07 | DynaEnergetics Europe GmbH | Oriented perforating system |
| US11795791B2 (en) | 2021-02-04 | 2023-10-24 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
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| CN101178005A (en) | 2008-05-14 |
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