CN204200197U - A kind of perforating system of interior orientation inclined shaft - Google Patents
A kind of perforating system of interior orientation inclined shaft Download PDFInfo
- Publication number
- CN204200197U CN204200197U CN201420575584.0U CN201420575584U CN204200197U CN 204200197 U CN204200197 U CN 204200197U CN 201420575584 U CN201420575584 U CN 201420575584U CN 204200197 U CN204200197 U CN 204200197U
- Authority
- CN
- China
- Prior art keywords
- firing
- perforating
- firing mount
- angle
- mount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a kind of perforating system of interior orientation inclined shaft, determines firing angle firing mount and adopts vertical masonry joint electric welded steel pipe laser cutting to form, and determining firing angle shell hole is that perforating bullet and firing mount pipe oblique intersection cut and form, and perforating bullet is assembled according to specified angle; Perforating bullet oral area direction has microscler elliptical aperture, avoids the raw decay of firing mount pipe correlation miscarriage; The firing mount pipe in perforating bullet detonating fuse groove direction has pressure and plays groove, ensure that the jet direction of perforating bullet can not cause skew because of vibrations, transport.Determine at firing mount the thick weighting block of 5mm that firing angle direction is furnished with 180 ° of scopes, thus make perforating gun remain on permanent position by the effect of laying particular stress on power under certain hole deviation condition.So just can ensure that perforating system can realize parallel oil reservoir perforation under inclined shaft condition.
Description
Technical field
The present invention relates to a kind of interior orientation inclined shaft and determine firing angle oriented perforation device, perforating bullet jet direction can be made to be parallel to oil reservoir perforation by adjustment perforating bullet firing angle, the volume increase of this kind of well is significant.
Background technology
It is required a kind of new perforating technology under specific geological conditions that firing angle perforating technology is determined in interior orientation orientation.Current oil field at home is through waterflooding extraction remaining oil high degree of dispersion for many years, and allowable exploitation is fewer and feweri, but affects by factors such as structure, reservoir and well control degree, still there is local remaining oil enriched area, especially near Faults.In recent years, did a large amount of research work round tomography edge Tapping Residual Oil, and attempted utilizing high angle hole to tap the latent power, obtained better effects.This kind of well tools has that oil reservoir is many, oil reservoir is thin, span is large and the feature of well bore and oil reservoir oblique.Current perforating modes both domestic and external be all perforating bullet along the injection of perforating gun radial direction and perforation direction vertical with pit shaft, oil reservoir thin place can be caused like this layer to be penetrated and to wear, cause oil-water-layer string layer, greatly affect production capacity.It is exactly the novel perforating technology of one of answering oil field user's request exploitation under this kind of background that firing angle perforating technology is determined in interior orientation orientation, this perforating technology can make perforating bullet jet direction be parallel to oil reservoir perforation by adjustment perforating bullet firing angle, is significant to the volume increase of this kind of well.
Summary of the invention
The technical problem solved
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of interior orientation inclined shaft and determines firing angle oriented perforation device, and firing angle perforating system is determined in the inclined shaft orientation that can be parallel to oil reservoir perforation when oil reservoir and borehole axis oblique.
Technical scheme
Firing angle perforating system is determined in a kind of Oil/gas Well interior orientation inclined shaft orientation, comprises initiator 1, perforating gun 2, perforating bullet 3, detonating fuse 4, detonating primer 5, centralizer 6, determines firing angle firing mount 7, bearing assembly 8, ball gun breech 9 and transition joint 10; It is characterized in that: describedly determine firing angle firing mount 7 and comprise balancing weight 11 and multiple loophole; Determining firing angle firing mount is 4 orientation cloth loophole modes, 90 ° of phase places, wherein two orientation loopholes and firing mount axes normal, other two sides are the angle that the angle of loophole and firing mount axis equals pit shaft and oil-gas Layer, firing mount two ends radial circumference has 4 uniform holes, be connected with bearing assembly for positioning disk.
Described balancing weight is that 5mm wall thickness steel tube laser cutting forms, and balancing weight will determine firing angle firing mount clad welded, and coated area is radial 180 °.
Described loophole oral area direction has microscler elliptical aperture, avoids the raw decay of firing mount pipe correlation miscarriage.
Beneficial effect
Firing angle oriented perforation device determined by a kind of interior orientation inclined shaft that the present invention proposes, determining firing angle firing mount adopts vertical masonry joint electric welded steel pipe laser cutting to form, determining firing angle shell hole is that perforating bullet and firing mount pipe oblique intersection cut and form, and perforating bullet is assembled according to specified angle; Perforating bullet oral area direction has microscler elliptical aperture, avoids the raw decay of firing mount pipe correlation miscarriage; The firing mount pipe in perforating bullet detonating fuse groove direction has pressure and plays groove, ensure that the jet direction of perforating bullet can not cause skew because of vibrations, transport.Determine at firing mount the thick weighting block of 5mm that firing angle direction is furnished with 180 ° of scopes, thus make perforating gun remain on permanent position by the effect of laying particular stress on power under certain hole deviation condition.So just can ensure that perforating system can realize parallel oil reservoir perforation under inclined shaft condition.
Firing angle oriented perforation device determined by a kind of interior orientation inclined shaft that the present invention proposes, can when hole angle be greater than 20 °, rely on gravity from orientation principle with determine firing angle technology perforating bullet jet penetrated along parallel oil-gas Layer direction, avoid when oil-gas Layer is thinner, jet injection oil-gas Layer causes going here and there layer, affects Oil & Gas Productivity.Rotated by special counterweight and determine firing angle firing mount, under certain hole deviation condition, utilize gravity from orientation principle, firing mount orientation to be fixed, then the feature of firing angle is determined in utilization, enables perforating bullet jet parallel with during oil-gas Layer oblique with oil-gas Layer perforation at pit shaft.The perforating oil gas well of oil sheet and pit shaft oblique has increase effectively penetrate out area and avoid going here and there the effect of layer, can effectively improve this kind of well capacity.
The invention has the advantages that:
1, given plane perforation can be parallel to, thin and be significant with the perforating oil gas well of pit shaft oblique for oil reservoir, effectively can increase and penetrate out area, improve Oil & Gas Productivity.
2, determine firing angle firing mount to be formed by common firing mount pipe laser cutting, what do not need other aids just can complete perforating bullet determines firing angle direction, has processing simple, assembles fast and reliable, feature with low cost.
3, the firing mount in each root perforating gun is an independent rotational structure, and a large amount of combinations of perforating gun do not affect directional effect, and namely perforation precision is not by the impact of perforation length.
4, not by the impact of down-hole complex environment, owing to being firing mount spin orientation, and firing mount is sealed in perforating gun inside, and the liquid environment not by down-hole affects.
Accompanying drawing explanation
Fig. 1 is that the present invention totally assembles schematic diagram;
Fig. 2 is centralizer schematic diagram of the present invention;
Fig. 3 is transition joint schematic diagram of the present invention;
Fig. 4 is bearing assembly schematic diagram of the present invention;
Fig. 5 is ball gun breech schematic diagram of the present invention;
Fig. 6 is the balancing weight determined in firing angle firing mount of the present invention, perforating bullet assembling schematic diagram;
Fig. 7 ~ Figure 10: determine firing angle firing mount schematic diagram for of the present invention;
Figure 11: be using state schematic diagram of the present invention
1-initiator, 2-perforating gun-, 3-perforating bullet, 4-detonating fuse, 5-detonating primer, 6-centralizer, 7-determines firing angle firing mount, 8-bearing assembly, 9-ball gun breech, 10-transition joint, 11-balancing weight, 12-positioning disk, 13-righting pipe, ring under 14-intermediate supports, 15-intermediate supports pressed on ring, 16-deep groove ball bearing, 17-bearing outside, 18-surely penetrates and shoots hole, 19-balancing weight, and 20-vertically shoots hole, A-outwards penetrates, and B-penetrates inwards, H-effective thickness.
Detailed description of the invention
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
The embodiment of the present invention comprises: initiator 1, perforating gun 2, perforating bullet 3, detonating fuse 4, detonating primer 5, and firing angle firing mount 7 determined by centralizer 6, bearing assembly 8, ball gun breech 9, and transition joint 10 and balancing weight 11 are formed.
Determining firing angle firing mount is 1 meter of 1 unit, and each unit cloth 13 shoots hole; Connect into various different size by bearing assembly, thus ensure that firing mount every meter has a bearing assembly to support, the external diameter of bearing assembly is slightly less than perforating gun internal diameter, can by firing mount effective righting in perforating gun.The end of determining firing angle firing mount is connected with centralizer, and the connection of centralizer and transition joint by bearing touch, thus ensures that the firing mount of every root perforating gun is all by bearing bracket stand, can reliably rotate freely.
Determining firing angle firing mount is 4 orientation cloth loophole modes, 90 ° of phase places, wherein two orientation loopholes and firing mount axes normal, other two sides are the angle that the angle of loophole and firing mount axis equals pit shaft and oil-gas Layer, firing mount two ends radial circumference has 4 uniform holes, for being connected in positioning disk with bearing assembly.
Determining firing angle firing mount adopts vertical masonry joint electric welded steel pipe laser cutting to form, and determining firing angle shell hole is that perforating bullet and firing mount pipe oblique intersection cut and form, and perforating bullet is assembled according to specified angle; Perforating bullet oral area direction has microscler elliptical aperture, avoids the raw decay of firing mount pipe correlation miscarriage; The firing mount pipe in perforating bullet detonating fuse groove direction has pressure and plays groove, ensure that the jet direction of perforating bullet can not cause skew because of vibrations, transport.Determine at firing mount the thick weighting block of 5mm that firing angle direction is furnished with 180 ° of scopes, thus make perforating gun remain on permanent position by the effect of laying particular stress on power under certain hole deviation condition.So just can ensure that perforating system can realize parallel oil reservoir perforation under inclined shaft condition.
Balancing weight is that 5mm wall thickness steel tube laser cutting forms, and balancing weight will determine firing angle firing mount clad welded, and coated area is radial 180 °, and balancing weight will avoid detonating fuse trend.
Centralizer is threaded connection by positioning disk 12 and righting pipe 13 and forms, and centre has through hole and was used for detonating fuse and detonating primer, and positioning disk radial circumference has 4 uniform screwed holes, is used for and determines firing angle firing mount and be fixedly connected with.
Bearing assembly is made up of ring under intermediate supports 14, intermediate supports pressed on ring 15, deep groove ball bearing 16 and bearing outside 17, deep groove ball bearing has intermediate supports outer shroud and inner ring to fix, bearing end cover studs with a bearing outside and be used for alignment bearing assembly in perforating gun, bearing assembly two ends respectively have 4 Kong Yuding firing angle firing mounts and connect.
Ball gun breech studs with row's steel ball, can the friction of effective less perforating gun when going into the well, prevent tubing string to be hampered and meet card.
Transition joint is made up of two male joint and pin and box sub, for the connection between perforating gun and perforating gun, two male joint and pin and box sub respectively has two bearings be used for righting positioning disk and righting pipe, ensures determine the freely reliable rotation in perforating gun of firing angle firing mount.
The present invention in use, perforating bullet is loaded in firing mount along shooting hole, play groove by pressure perforating bullet is compressed, assemble detonating fuse, at the good detonating primer of firing mount two ends card, with holding screw, detonating fuse is fixing on righting pipe, then will determine firing angle firing mount loads in oriented perforation rifle, then two male joint and pin and box sub are screwed in perforating gun, at well head perforating gun coupled together and goes into the well, lower to object perforation layer time, make perforating bullet jet towards appointment orientation perforation under gravity, reach the object being parallel to oil-gas Layer perforation, improve Oil & Gas Productivity.
Claims (3)
1. a perforating system for interior orientation inclined shaft, comprises initiator (1), perforating gun (2), perforating bullet (3), detonating fuse (4), detonating primer (5), centralizer (6), determines firing angle firing mount (7), bearing assembly (8), ball gun breech (9) and transition joint (10); It is characterized in that: describedly determine firing angle firing mount (7) and comprise balancing weight (11) and multiple loophole; Determining firing angle firing mount is 4 orientation cloth loophole modes, 90 ° of phase places, wherein two orientation loopholes and firing mount axes normal, other two sides are the angle that the angle of loophole and firing mount axis equals pit shaft and oil-gas Layer, firing mount two ends radial circumference has 4 uniform holes, be connected with bearing assembly for positioning disk.
2. the perforating system of interior orientation inclined shaft according to claim 1, is characterized in that: described balancing weight is that 5mm wall thickness steel tube laser cutting forms, and balancing weight will determine firing angle firing mount clad welded, and coated area is radial 180 °.
3. the perforating system of interior orientation inclined shaft according to claim 1, is characterized in that: described loophole oral area direction has microscler elliptical aperture, avoids firing mount pipe correlation to miscarry raw decay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575584.0U CN204200197U (en) | 2014-09-30 | 2014-09-30 | A kind of perforating system of interior orientation inclined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575584.0U CN204200197U (en) | 2014-09-30 | 2014-09-30 | A kind of perforating system of interior orientation inclined shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200197U true CN204200197U (en) | 2015-03-11 |
Family
ID=52658165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575584.0U Active CN204200197U (en) | 2014-09-30 | 2014-09-30 | A kind of perforating system of interior orientation inclined shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200197U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11125056B2 (en) | 2013-07-18 | 2021-09-21 | DynaEnergetics Europe GmbH | Perforation gun components and system |
| US11339632B2 (en) | 2018-07-17 | 2022-05-24 | DynaEnergetics Europe GmbH | Unibody gun housing, tool string incorporating same, and method of assembly |
| US11480038B2 (en) | 2019-12-17 | 2022-10-25 | DynaEnergetics Europe GmbH | Modular perforating gun system |
| US11732556B2 (en) | 2021-03-03 | 2023-08-22 | DynaEnergetics Europe GmbH | Orienting perforation gun assembly |
-
2014
- 2014-09-30 CN CN201420575584.0U patent/CN204200197U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11125056B2 (en) | 2013-07-18 | 2021-09-21 | DynaEnergetics Europe GmbH | Perforation gun components and system |
| 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 |
| US11339632B2 (en) | 2018-07-17 | 2022-05-24 | DynaEnergetics Europe GmbH | Unibody gun housing, tool string incorporating same, and method of assembly |
| US11525344B2 (en) | 2018-07-17 | 2022-12-13 | DynaEnergetics Europe GmbH | Perforating gun module with monolithic shaped charge positioning device |
| US11773698B2 (en) | 2018-07-17 | 2023-10-03 | DynaEnergetics Europe GmbH | Shaped charge holder and perforating gun |
| US11480038B2 (en) | 2019-12-17 | 2022-10-25 | DynaEnergetics Europe GmbH | Modular perforating gun system |
| US11732556B2 (en) | 2021-03-03 | 2023-08-22 | DynaEnergetics Europe GmbH | Orienting perforation gun assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204200197U (en) | A kind of perforating system of interior orientation inclined shaft | |
| CN104989335B (en) | Firing angle perforating system is determined in a kind of measurable interior orientation orientation in orientation | |
| CN104314529B (en) | Interior orientation autorotation impact initiating device for oil gas well completion | |
| CN104453799A (en) | Inner orientation inclined shaft fixed-ejection-angle positioning perforating device | |
| CN101178005B (en) | Modularized perforating tool | |
| CN117005831A (en) | Full-linkage internal directional perforator | |
| CN108060896A (en) | The mechanical underground instrument of vertical drilling is realized using pin cam | |
| CN211287646U (en) | Bridge-shooting combined self-orienting horizontal well perforating gun | |
| CN204419138U (en) | Horizontal well cable transmission lateral rings leads sub-clustering oriented perforating mechanism | |
| CN204140033U (en) | A kind of Oil/gas Well interior orientation spinning impact initiation device | |
| CN109578270B (en) | All-metal gap bridge type screw pump | |
| CN204960902U (en) | Annular formula horizontal well perforation rifle | |
| CN204782952U (en) | Measurable perforation device in position | |
| CN209179739U (en) | A kind of horizontal well oriented perforating device | |
| CN204082107U (en) | Firing angle perforator is determined in interior orientation | |
| CN207776792U (en) | The mechanical underground tool of vertical drilling is realized using pin cam | |
| CN103924951B (en) | There is the perforator that built-in primacord squash type plays assembly admittedly | |
| CN203867533U (en) | Fixed-perforation-surface perforator for oil and gas well | |
| CN200958386Y (en) | High-aperture-density path windowmaker | |
| CN202832429U (en) | Inner directional composite perforator | |
| CN220769431U (en) | Full-linkage internal directional perforator | |
| CN205175610U (en) | Erection joint of LNG line pressure sensor | |
| CN205228309U (en) | Big gun hole charging means | |
| CN107322051A (en) | A kind of drill bit installing mechanism | |
| CN203022626U (en) | Reducing stabilizer and system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |