CN203499653U - Fixed-face perforation device provided with module bullet supports and used for oil and gas wells - Google Patents
Fixed-face perforation device provided with module bullet supports and used for oil and gas wells Download PDFInfo
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- CN203499653U CN203499653U CN201320583672.0U CN201320583672U CN203499653U CN 203499653 U CN203499653 U CN 203499653U CN 201320583672 U CN201320583672 U CN 201320583672U CN 203499653 U CN203499653 U CN 203499653U
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- module bullet
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Abstract
The utility model discloses a fixed-face perforation device provided with module bullet supports and used for oil and gas wells. The module bullet support fixed-face perforation device comprises a bullet frame and the module bullet supports installed on the bullet frame. The lower portion of each module bullet support is formed through surrounding of four inclined sides, which are two symmetrical locating sides, a perforating bullet piercing side and a detonating fuse moving side; the four inclined sides are all connected with a bottom side; a bullet hole is formed in the module bullet support; one end of the bullet hole penetrates the perforating bullet piercing side and the other end penetrates the upper portion and the top side of the module bullet support; and an acute angle is formed between the axis of the bullet hole and the bottom side. With the fixed-face perforation device, four ducts can be formed in the same axial sectional plane of a sleeve and a fan-shaped layout can be formed by the ducts of the sleeve, so that that the formation stress gathers along the perforation ducts and the following fracturing operation is facilitated.
Description
Technical field
The utility model relates to Oil/gas Well cased well perforation completion operation technique field, exactly relates to a kind of Oil/gas Well and determines face perforator with the holder of module bullet.
Background technology
At present, unconventional reservoir exploration and development has become world trends, is also an important component part of World's Oil and Gas Resources.In unconventional oil-gas exploration and development process, formation testing completion need to be carried out novel fracturing technique measure, and for control fracturing fracture strike better, reservoir stress is to concentrating along duct, determine face perforator and adapted to novel pressure break technical requirements, can be at a quill to three eyelets of sectional plane layout, guiding stress is concentrated, and has made up the deficiency of original perforating technology.
Publication number is CN2592864, within open day, is that the Chinese patent literature on December 17th, 2003 discloses a kind of oil gas super high shot density perforator firing mount, for oil-gas mining perforating job.At firing mount, around with solid bullet screw, screw around by spiral setting, can be four phase places, six phase places or eight-phase at firing mount.Perforating bullet afterbody is threaded.The feature of this patent is: admittedly play screw at firing mount around by spiral processing, can increase shot density, state the close perforation of superelevation, just can fill perforating bullet, to can, according to actual geological condition, install how many perforating bullets more.Perforating bullet is installed in to firing mount outside, can greatly improves perforating bullet density.It is a kind of comparatively desirable perforator firing mount.Simple in structure, design ingeniously, the experiment proved that, satisfactory for result.
But, still there is following technical problem in the bullet holder that the above-mentioned patent documentation of take is representative:
1. the perforator in existing conventional spiral cloth hole, is difficult to guide centralization of formation stress, is difficult to control fracturing fracture strike;
2. the perforator in conventional spiral cloth hole cannot form a plurality of eyelets in a sleeve pipe plane;
3. conventional spiral layout perforator jet vertical pipes, cannot realize perforation jet and tilt to penetrate.
Summary of the invention
The utility model is intended to for the existing defect of above-mentioned prior art, provide a kind of Oil/gas Well to determine face perforator with the holder of module bullet, adopt the utility model, can in the same axial cross section plane of sleeve pipe, form three ducts, sleeve pipe duct forms fan-shaped layout, reservoir stress is concentrated along perforation tunnel, be convenient to follow-up fracturing work; It is an effective way of supporting follow-up volume fracturing operation, can coordinate fracturing methods to control fracture strike, when forming major fracture, also produces many radial fissures, links up better formation fracture, improves Reservoir Seepage.
The utility model is by adopting following technical proposals to realize:
A kind of Oil/gas Well is determined face perforator with the holder of module bullet, comprise firing mount and be arranged on the module bullet holder on firing mount, it is characterized in that: the bottom of described module bullet holder is crowded around and formed by four faces that are obliquely installed, be respectively that two symmetrically arranged locating surfaces, perforating bullets pass face and detonating fuse is walked plane, four faces that are obliquely installed are all connected with bottom surface; In the holder of module bullet, have shell hole, one end of shell hole is run through described perforating bullet and is passed face, and the other end runs through top and the end face of module bullet holder; Between the axis of described shell hole and described bottom surface, form acute angle.
Perforating bullet on described firing mount is group shape and distributes, each group comprises the holder of two described module bullets and a big hole perforator, big hole perforator is between the holder of two module bullets, the jet direction of the perforating bullet openend in two module bullet holders is relative, and the jet direction of big hole perforator is axial vertical with firing mount; Three equal Spiral distributions of perforating bullet in perforating bullet between group and group or arbitrary group.
It is hollow cylindric that described firing mount integral body is, on firing mount, have the grooving matching with module bullet holder size, each module bullet holder is installed in described firing mount by upper grooving and lower grooving, and the incision slot length that is positioned at module bullet holder bottom is greater than the upper grooving length on module bullet holder top.
The bottom surface of described module bullet holder stretches out in described lower grooving, and the location structure that forms of two locating surfaces of module bullet holder and the width of lower grooving match.
At the two ends of upper grooving, be provided with the locking member that fastens the holder of described module bullet.
A side on the top of module bullet holder is provided with spacing side's bar, and that side at spacing side's bar place is that perforating bullet penetrates that side that direction is partial to.
The perforating bullet of installing in described shell hole is deep penetrating charge.
The holder of described module bullet is the module bullet holder of polytetrafluoroethylene (PTFE) material.
Compared with prior art, the beneficial effects of the utility model show:
1, in the utility model, adopt four faces being obliquely installed to crowd around the bottom that forms the holder of module bullet, can realize being arranged on firing mount of tilting when the holder of installation module bullet, thereby solved, determine face perforator and at sleeve pipe, determine a difficult problem for face perforation; Meanwhile, " in the holder of module bullet, have shell hole, one end of shell hole is run through described perforating bullet and is passed face, and the other end runs through top and the end face of module bullet holder in employing; Between the axis of described shell hole and described bottom surface, form acute angle " such form of structure, can utilize bullet holder inclination angle to realize and control the transmit direction of determining face perforation jet; Adopt " perforating bullet on firing mount is group shape and distributes; each group comprises the holder of two described module bullets and a big hole perforator; big hole perforator is between the holder of two module bullets; the jet direction of the perforating bullet openend in two module bullet holders is relative, and the jet direction of big hole perforator is axial vertical with firing mount; Three equal Spiral distributions of perforating bullet in perforating bullet between group and group or arbitrary group " such form of structure; can in the same axial cross section plane of sleeve pipe, form three ducts; sleeve pipe duct forms fan-shaped layout, reservoir stress is concentrated along perforation tunnel, be convenient to follow-up fracturing work; The utility model is an effective way of supporting follow-up volume fracturing operation, can coordinate fracturing methods to control fracture strike, when forming major fracture, also produces many radial fissures, links up better formation fracture, improves Reservoir Seepage.
2, in the utility model, adopt that " it is hollow cylindric that firing mount integral body is, on firing mount, have the grooving matching with module bullet holder size, each module bullet holder is installed in described firing mount by upper grooving and lower grooving, and the incision slot length that is positioned at module bullet holder bottom is greater than the upper grooving length on module bullet holder top " such form of structure, on the one hand, when the holder of module bullet is fit in firing mount, upper grooving can closely contact with the top of module bullet holder, thereby the holder of module bullet is blocked to location, on the other hand, the length of lower grooving is large compared with upper grooving, therefore can there be enough reserved dropping from the air that detonating fuse can be passed through smoothly.Particularly, perforating bullet passes face and detonating fuse and walks plane and be also obliquely installed, and more contributes to detonating fuse and perforating bullet to pass the perforating bullet that face passes and is connected, and by detonating fuse, walk plane and pass, more appropriate with coordinating of lower grooving.
3, in the utility model, adopt " bottom surface of module bullet holder stretches out in described lower grooving; and the location structure that forms of two locating surfaces of module bullet holder and the width of lower grooving match " and such form of structure, simultaneously, two locating surfaces are all obliquely installed, therefore, can be by make the both sides of grooving under two locating surfaces propping up only by the holder of die block bullet and limited, thus realized positioning function.
4,, in the utility model, at the two ends of upper grooving, be provided with the locking member that fastens the holder of described module bullet.Such set-up mode, can be further by the upper buckle of module bullet holder among upper grooving.
5, in the utility model, adopt " side on the top of module bullet holder is provided with spacing side's bar; that side at spacing side's bar place is that perforating bullet penetrates that side that direction is partial to " such form of structure, on the one hand, thus can make spacing side's bar match the holder of module bullet is fixed with locking member on upper grooving; On the other hand, if this spacing side's bar is not installed, due to shell hole, thereby the module bullet holder of that side of shell hole place will be punched and can not be coordinated with the locking member on upper grooving.
6, in the utility model, the holder of module bullet is the module bullet holder of polytetrafluoroethylene (PTFE) material, and such form of structure is convenient to the holder of module bullet to be processed into required specific shape.
To sum up protect, the utility model can be applicable to unconventional Oil/gas Well formation testing completion practice, coordinate novel fracturing technique measure, can complete that at quill, to guiding on sectional plane, determine face eye stress concentrated, coordinate fracturing methods fracture strike to control, reach and manufacture major fracture and many radial fissures object, increase oil gas flow channel.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is that face perforator structural representation is determined in bullet holder;
Fig. 2 is firing mount structural representation;
Fig. 3 is the module bullet holder structure schematic diagram that deep penetrating charge has been installed;
Fig. 4 is the right view of module bullet holder;
Fig. 5 is A-A sectional view in Fig. 4;
Fig. 6 is the top view of Fig. 5.
Mark in figure:
1, firing mount, 2, deep penetrating charge, 3, big hole perforator, 4, locking member, 5, spacing side's bar, 6, module bullet holder, 7, lower grooving, 8, upper grooving, 9, shell hole, 10, locating surface, 11, perforating bullet passes face, and 12, detonating fuse walks plane, 13, bottom surface, 14, end face.
The specific embodiment
Embodiment 1
With reference to Figure of description 1-6, Oil/gas Well is determined face perforator with the holder of module bullet and is connected as follows: in module bullet holder 6, be inserted in deep penetrating charge 2; The module bullet holder 6 of being inserted in deep penetrating charge 2 is put into the grooving of cast firing mount 1, the large openend direction of upper and lower two deep penetrating charges 2 is relative; The square breach of spacing side's bar 5 being put into module bullet holder 6 is spacing by deep penetrating charge 2, with the spacing side's bar 5 of locking member 4 locking on cast firing mount 1; Big hole perforator 3 is put into the circular hole of cast firing mount 1; With the locking member 4 on cast firing mount 1, big hole perforator 3 is locked.
Oil/gas Well connects as follows with determining face perforation module bullet holder 6: deep penetrating charge 2 is inserted in the shell hole 9 of module bullet holder 6; By being placed in spacing side's bar 5, in the square breach in module bullet holder 6 upper right corner, to deep penetrating charge 2, carry out spacing; These module bullet holder 6 supporting Oil/gas Wells are determined face perforator with the holder of module bullet and are used.
As preferred forms of the present utility model, it comprises firing mount 1 and is arranged on the module bullet holder 6 on firing mount 1, the bottom of module bullet holder 6 is crowded around and is formed by four faces that are obliquely installed, respectively that two symmetrically arranged locating surfaces 10, perforating bullets pass face 11 and detonating fuse and walk 12, four faces that are obliquely installed of plane and be all connected with bottom surface 13; In module bullet holder 6, have shell hole 9, one end of shell hole 9 is run through perforating bullet and is passed face 11, and the other end runs through top and the end face 14 of module bullet holder 6; Between the axis of shell hole 9 and bottom surface 13, form acute angle.Adopt conventional firing mount.
Or adopt novel firing mount structure: the perforating bullet on firing mount 1 is group shape and distributes, each group comprises two module bullets holder 6 and a big hole perforator 3, big hole perforator 3 is between two module bullets holder 6, the jet direction of the perforating bullet openend in two module bullet holders 6 is relative, and the jet direction of big hole perforator 3 is axial vertical with firing mount 1; Three perforating bullets in perforating bullet between group and group or arbitrary group are all arranged with spiral way such as 60 °, phase places.It is hollow cylindric that firing mount 1 integral body is, on firing mount 1, have the grooving matching with module bullet holder 6 sizes, each module bullet holder 6 is installed in firing mount 1 by upper grooving 8 and lower grooving 7, and lower grooving 7 length that are positioned at module bullet holder 6 bottoms are greater than upper grooving 8 length on module bullet holder 6 tops.The bottom surface 13 of module bullet holder 6 stretches out in lower grooving 7, and the location structure that forms of two locating surfaces 10 of module bullet holder 6 and the width of lower grooving 7 match.At the two ends of upper grooving 8, be provided with the locking member 4 that fastens module bullet holder 6.A side on the top of module bullet holder 6 is provided with spacing side's bar 5, and that side at spacing side's bar 5 places is that perforating bullet penetrates that side that direction is partial to.The perforating bullet of installing in shell hole 9 is deep penetrating charge 2.Module bullet holder 6 is module bullet holders 6 of polytetrafluoroethylene (PTFE) material.
Claims (7)
1. an Oil/gas Well is determined face perforator with the holder of module bullet, comprise firing mount (1) and be arranged on the module bullet holder (6) on firing mount (1), it is characterized in that: the bottom of described module bullet holder (6) is crowded around and formed by four faces that are obliquely installed, be respectively that two symmetrically arranged locating surfaces (10), perforating bullet pass face (11) and detonating fuse is walked plane (12), four faces that are obliquely installed are all connected with bottom surface (13); In module bullet holder (6), have shell hole (9), one end of shell hole (9) is run through described perforating bullet and is passed face (11), and the other end runs through top and the end face (14) of module bullet holder (6); Between the axis of described shell hole (9) and described bottom surface (13), form acute angle.
2. Oil/gas Well according to claim 1 is determined face perforator with the holder of module bullet, it is characterized in that: described firing mount (1) integral body is hollow cylindric, on firing mount (1), have the grooving matching with module bullet holder (6) size, each module bullet holder (6) is installed in described firing mount (1) by upper grooving (8) and lower grooving (7), and lower grooving (7) length that is positioned at module bullet holder (6) bottom is greater than upper grooving (8) length on module bullet holder (6) top.
3. Oil/gas Well according to claim 2 is determined face perforator with the holder of module bullet, it is characterized in that: the bottom surface (13) of described module bullet holder (6) stretches out in described lower grooving (7), and the location structure that forms of two locating surfaces (10) of module bullet holder (6) and the width of lower grooving (7) match.
4. Oil/gas Well according to claim 3 is determined face perforator with the holder of module bullet, it is characterized in that: at the two ends of upper grooving (8), be provided with the locking member (4) that fastens described module bullet holder (6).
5. Oil/gas Well according to claim 1 is determined face perforator with the holder of module bullet, it is characterized in that: the side on the top of module bullet holder (6) is provided with spacing side's bar (5), that side at spacing side's bar (5) place is that perforating bullet penetrates that side that direction is partial to.
6. Oil/gas Well according to claim 1 is determined face perforator with the holder of module bullet, it is characterized in that: the perforating bullet of installing in described shell hole (9) is deep penetrating charge (2).
7. Oil/gas Well according to claim 1 is determined face perforator with the holder of module bullet, it is characterized in that: described module bullet holder (6) is the module bullet holder (6) of polytetrafluoroethylene (PTFE) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583672.0U CN203499653U (en) | 2013-09-22 | 2013-09-22 | Fixed-face perforation device provided with module bullet supports and used for oil and gas wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583672.0U CN203499653U (en) | 2013-09-22 | 2013-09-22 | Fixed-face perforation device provided with module bullet supports and used for oil and gas wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499653U true CN203499653U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320583672.0U Expired - Fee Related CN203499653U (en) | 2013-09-22 | 2013-09-22 | Fixed-face perforation device provided with module bullet supports and used for oil and gas wells |
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| Country | Link |
|---|---|
| CN (1) | CN203499653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452535A (en) * | 2013-09-22 | 2013-12-18 | 中国石油集团川庆钻探工程有限公司 | Positioning perforator with sabot blocks for oil-gas wells |
| CN104453799A (en) * | 2014-09-30 | 2015-03-25 | 西安物华巨能爆破器材有限责任公司 | Inner orientation inclined shaft fixed-ejection-angle positioning perforating device |
-
2013
- 2013-09-22 CN CN201320583672.0U patent/CN203499653U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452535A (en) * | 2013-09-22 | 2013-12-18 | 中国石油集团川庆钻探工程有限公司 | Positioning perforator with sabot blocks for oil-gas wells |
| CN103452535B (en) * | 2013-09-22 | 2016-01-20 | 中国石油集团川庆钻探工程有限公司 | Face perforator is determined in a kind of Oil/gas Well module bullet holder |
| CN104453799A (en) * | 2014-09-30 | 2015-03-25 | 西安物华巨能爆破器材有限责任公司 | Inner orientation inclined shaft fixed-ejection-angle positioning perforating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180922 |