CN203420687U - Vertical shaft oriented perforating device and angle settling tool - Google Patents
Vertical shaft oriented perforating device and angle settling tool Download PDFInfo
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- CN203420687U CN203420687U CN201320396266.3U CN201320396266U CN203420687U CN 203420687 U CN203420687 U CN 203420687U CN 201320396266 U CN201320396266 U CN 201320396266U CN 203420687 U CN203420687 U CN 203420687U
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- perforating
- bullet
- firing mount
- gun
- shaft
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Abstract
The utility model aims to provide a vertical shaft oriented perforating device and an angle settling tool. When a certain included angle exists between a shaft and a storage layer, by adjusting the included angle of perforating bullets in the perforating device and rotating perforating tubular columns, the perforating direction is made to point the direction in which a fracture of the storage layer is easy to press open, or the jointing direction or the primary stress direction for perforation so that the fracture construction difficulty is lowered, and an effective oil drain area of the storage layer is enlarged. The vertical shaft oriented perforating device is provided with a perforating gun set composed of at least one perforating gun, an exploder connector and a gun tail are installed at the two ends of the perforating gun set respectively, the perforating guns are connected in the perforating gun set in an end-to-end mode through connection devices, the gun body of each perforating gun is provided with a long-strip-shaped blind hole, a bullet holder arranged in the axial direction is installed in the gun body, and a bullet sleeve on which the perforating bullets are placed is installed in the bullet holder in a swinging mode.
Description
Technical field
The utility model relates to the shaft-well directional perforating device using when petroleum exploration and development and determines angle tool.
Background technology
In recent years, shale gas, coal bed gas, tight gas, fine and close wet goods unconventional petroleum resources have become the major fields of Global Oil natural gas exploration and development, and unconventional oil gas cannot be developed by conventional perforation, fracturing process and technological means.From developing at present the experience of shale gas abroad, mainly rely on horizontal well drilling and adopt large liquid measure multistage pressure break completion mode to develop this type of reservoir.Horizontal well majority is cased well, and all will adopt fracturing could obtain production capacity, and cased well could be implemented fracturing after must forming the passage that fracturing fluid enters stratum by perforation.The degree of perfection that forms seam net system after fracturing operation, has determined in reservoir, whether to obtain maximum drainage area, and then obtains production capacity.
At present in straight well drilling process, in most cases well track can be not just in time perpendicular to fissure direction, joint direction or the biggest principal stress direction of reservoir.And conventional perforation generally adopts spiral pattern, preforation tunnel can only be pressed perpendicular to pit shaft axis and on the borehole wall the uniform arrangement of phase place, eyelet cannot point to the direction of fissure direction, joint direction or the main stress bar of the reservoir more easily pressing off, not only cause follow-up fracturing work to implement difficulty large, and affect production capacity.
Utility model content
The utility model In view of the foregoing completes just, its object is to provide a kind of shaft-well directional perforating device and determines angle tool, it can be in the situation that there is certain angle in pit shaft and reservoir, by adjusting the angle of perforating bullet in perforating system and rotating perforation tubular column, the direction that makes perforation direction point to the fissure direction, joint direction or the main stress bar that more easily press off reservoir is carried out perforation, to reduce pressure break, implement difficulty, strengthen the effective earial drainage area of reservoir.
Shaft-well directional perforating device of the present utility model possesses the perforating gun group being comprised of at least one perforating gun, at the two ends of perforating gun group, be separately installed with initiator joint and gun breech, in perforating gun group, utilize linkage that perforating gun is connected from beginning to end, it is characterized in that, on the body of a gun of perforating gun, be formed with strip blind hole, the firing mount arranging is installed in the body of a gun vertically, and the bullet cover that is placed with perforating bullet is installed in firing mount in the mode of rotation.
Firing mount is hollow tubular, in the direction vertical with firing mount bearing of trend, offer and run through the horizontal rotation axis hole of firing mount, what bullet overlapped passes through swing shaft pivotal mounting in rotation axis hole, and bullet is enclosed within firing mount around swing shaft rotation, position corresponding on firing mount offers two through holes, and these two through holes are disposed at respectively the front and back side of perforating bullet.
By firing mount is arranged to hollow tubular, and on firing mount, offer rotation axis hole, can realize with simple structure the rotation of bullet cover.Thereby can to the perforation direction of perforating bullet, adjust as required, make perforation direction point to the direction of the fissure direction, joint direction or the main stress bar that more easily press off reservoir and carry out perforation, to reduce pressure break, implement difficulty, strengthen the effective earial drainage area of reservoir.In addition, two through holes on firing mount are respectively used to pass through and the convenient detonating fuse of installing for the jet of perforating bullet.
In addition, in shaft-well directional perforating device of the present utility model, firing mount cross section is rectangular, two through holes are rectangular opening, and be located at respectively two wide of firing mount, rotation axis hole runs through two leptoprosopy that are located at firing mount, and the symmetrical side of the rotation axis hole on the leptoprosopy of a side is provided with screwed hole, is provided with the screw that holds out against that bullet cover is fixedly clamped in screwed hole.
The axial length of bullet cover is greater than the thickness of firing mount, and bullet cover two ends are outstanding from through hole respectively, and the butt on the protuberance of bullet cover and the edge, hole of through hole is limited in the rotation of bullet cover within the scope of predetermined rotation.
The perforation opposite direction of two adjacent perforating bullets.
Predetermined rotation scope is that angle is the scope of 0 degree～40 degree, and described angle refers to the angle between the direction vertical with firing mount bearing of trend and the perforation direction of perforating bullet.
Utilize the butt on the protuberance of bullet cover and the edge, hole of through hole the rotation of bullet cover can be limited within the scope of predetermined rotation.In addition, utilization holds out against screw and just can to adjusting the bullet cover of angle, be fixed simply, and this is simple in structure, easily manufactures and convenient operation.By the perforation direction of two adjacent perforating bullets is arranged on the contrary, can along the direction of fissure direction, joint direction or the main stress bar of reservoir, carry out perforation in the both sides while of shaft-well directional perforating device, thereby improve operating efficiency.
Bullet cover is made by elastomeric material, overlaps radially both sides be provided with the transverse plane contacting with firing mount inner surface at bullet.
By elastomeric material, make bullet cover, more easily bullet cover is installed on firing mount.Utilization is overlapped contacting of end face that both sides radially arrange and firing mount inner surface at bullet, can not be offset, and when utilization holds out against screw and is fixed, can more stable and firmly fix bullet cover in the time of can making bullet be enclosed within rotation.
The utility model also provides a kind of angle tool of determining, it is for adjusting the perforation direction of above-mentioned shaft-well directional perforating device, it is characterized in that, describedly determine angle tool and formed by backstay and main part, one end of backstay is formed with the chuck that can be sticked in bullet cover outer wall, and the other end forms the rhabodoid protruding out, and main part is installed on firing mount, a side of main part be pivoted one with rhabodoid against L shaped pointer, on main part, be provided with a scale portion corresponding with pointer rotation angle.
The rotation center of the rotation center of backstay, bullet cover and the rotation center of pointer are identical, and pointer is parallel with backstay.
Utilize the angle tool of determining of said structure, can be easily and set exactly the perforation angle of shaft-well directional perforating device.Thereby the direction of fissure direction, joint direction or the main stress bar that can make perforation direction point to exactly more easily to press off reservoir is carried out perforation, to reduce pressure break, implement difficulty, strengthen the effective earial drainage area of reservoir.
In addition, of the present utility model, determine in angle tool, at main part, be provided with the through hole corresponding with screwed hole on firing mount.
Utilize said structure, on firing mount, be equipped with the in the situation that of determining angle tool, even if do not unload, do not determine angle tool, also can utilize and hold out against screw bullet cover is fixed, thereby prevent after determining angle tool and removing, the position of bullet cover changes, and causes the deviation of perforation direction.
Accompanying drawing explanation
Fig. 1 is the sectional view of perforating gun in shaft-well directional perforating device of the present utility model.
Fig. 2 is equipped with the sectional view of the situation of perforating bullet on the firing mount of perforating gun.
Fig. 3 is equipped with the stereogram of the situation of perforating bullet on the firing mount of perforating gun.
Fig. 4 is the stereogram of determining angle tool.
Fig. 5 is equipped with the stereogram of the situation of determining angle tool when assembling perforating bullet on firing mount.
Label declaration
1: perforating gun;
11: the body of a gun;
111: blind hole;
112: directional hole;
113: directional bolt;
12: firing mount;
121: through hole;
122: rotation axis hole;
123: screwed hole;
124: hold out against screw;
13: locating ring assembly;
14: bullet cover;
15: perforating bullet;
2: initiator joint;
3: gun breech;
4: linkage;
41: top connection;
42: lower contact;
5: determine angle tool 5;
51: main part;
511: scale portion;
512: pointer;
513: through hole;
52: backstay;
521: rhabodoid;
522: chuck;
Angle: α.
The specific embodiment
Below, the concrete structure of the shaft-well directional perforating device in the utility model is described.
As shown in Figure 1, shaft-well directional perforating device of the present utility model possesses the perforating gun group being comprised of at least one perforating gun 1, at the two ends of perforating gun group, be separately installed with initiator joint 2 and gun breech 3, in perforating gun group, utilize linkage 4 that perforating gun 1 head and the tail are connected.Linkage 4 consists of top connection 41 and lower contact 42, and they are connected to the end of the body of a gun 11 of two perforating guns 1 by screw thread, thereby two perforating guns 1 are linked together.Both ends at the body of a gun 11 of perforating gun 1 are provided with directional hole 112, and directional bolt 113 is installed on top connection 41 and lower contact 42 via directional hole 112, thereby has realized the location to the closure of perforating gun.For being connected of initiator joint 2 and gun breech 3 and perforating gun 1, adopted the joint identical with being connected of perforating gun 1 with above-mentioned linkage 4, be all to utilize screw thread to connect, utilize the location of directional hole 112 and directional bolt 113 travel directions simultaneously.
On the body of a gun 11 of perforating gun 1, be provided with the blind hole 111 of strip, it meets perforating bullet 15 around the scope of rotation axis hole 122 rotation 0 degree～40 degree, and the jet producing after perforating bullet 15 detonations forms eyelet by blind hole 111 on the body of a gun 11.In addition, directional hole 112 with blind hole 111 on same axis, thereby can make the perforation direction of each perforating gun 1 perforating bullet 15 each other be consistent.
As shown in Figures 2 and 3, in the body of a gun 11 of perforating gun 1, be provided with firing mount 12.Firing mount 12 is installed in the body of a gun 11 by locating ring assembly 13, particularly, locating ring assembly 13 is installed on the two ends of firing mount 12, and the spacer on locating ring assembly 13 is entered in the locating slot of the body of a gun 11 inwalls, and with screw fastening, thus firing mount 12 is installed in the body of a gun 11.Some bullet covers 14 are installed on firing mount 12, in bullet cover 14, are placed with perforating bullet 15.
In addition, the axial length along perforation direction of bullet cover 14 is greater than the thickness of firing mount 12, outstanding from through hole 121 respectively thereby bullet overlaps 14 two ends.Wherein, a through hole 121 jets for perforating bullet 15 corresponding with playing head end pass through, and another through hole 121 corresponding with projectile tail end is for installing detonating fuse to perforating bullet 15.In addition, because two through holes 121 in bullet cover 14 are outstanding, so the butt on the protuberance of bullet cover 14 and the edge, hole of through hole 121 is limited in the rotation of bullet cover 14 within the scope of predetermined rotation.Preferably this scope is that angle α is the scope of 0 degree～40 degree, and described angle α refers to the angle between the direction vertical with firing mount 12 bearing of trends and the perforation direction of perforating bullet 15.
In addition, the perforation opposite direction of two adjacent perforating bullets 15,, at the described angle α of two perforating bullets 15 identical in the situation that, the perforation opposite direction of perforating bullet 15, and two perforating bullets 15 all can only be spent in the direction rotation 40 along clockwise direction or counterclockwise.For example, as shown in Figure 2, each perforating bullet 15 perforation direction towards the opposite is interconnected, and can only be all rotation in the scope of 0 degree～40 degree at angle along clockwise direction.Thus, even after having adjusted the perforation direction of perforating bullet 15, also can guarantee the perforation opposite direction of adjacent perforating bullet 15 in same direction.
In addition, on firing mount 12, be also provided with and hold out against screw 124, by being screwed into the screwed hole 123 of firing mount 12 and overlapping the transverse plane butt of 14 both sides with bullet holding out against screw 124, can overlap 14 to bullet and be fixed.
According to above-mentioned shaft-well directional perforating device, utilize simple structure to realize the rotation of bullet cover, thereby can be in the situation that there is certain angle in pit shaft and reservoir, by adjusting the angle of perforating bullet in perforating system and rotating perforation tubular column, the direction that makes perforation direction point to the fissure direction, joint direction or the main stress bar that more easily press off reservoir is carried out perforation, to reduce pressure break, implement difficulty, strengthen the effective earial drainage area of reservoir.
Below, the structure of determining angle tool 5 of special use in assembling shaft-well directional perforating device of the present utility model of the present utility model is described.
As shown in Figures 4 and 5, determining angle tool 5 mainly consists of backstay 52 and main part 51.
One end of backstay 52 is formed with and can be sticked in the chuck 522 that bullet overlaps 14 outer walls, and the other end forms the rhabodoid 521 protruding out.Utilize this structure, backstay 52 can overlap 14 rotations integratedly with bullet, and the extended line of rhabodoid 521 is by rotation center.
In addition, at main part 51, be also provided with the through hole 513 corresponding with screwed hole 123 on firing mount 12.Thus, do not unload and determine angle tool 5, can utilize to hold out against the 124 pairs of bullets of screw cover 14 and be fixed yet, thereby prevent that the position of bullet cover 14 changes, and causes the deviation of perforation direction after determining angle tool 5 and removing.
According to the angle tool of determining of said structure, can be easily and set exactly the perforation angle of shaft-well directional perforating device.Thereby the direction of fissure direction, joint direction or the main stress bar that can make perforation direction point to exactly more easily to press off reservoir is carried out perforation, to reduce pressure break, implement difficulty, strengthen the effective earial drainage area of reservoir.
Below, the concrete mode of the shaft-well directional perforating device of assembling present embodiment is described.
First, bullet cover 14 is mounted to firing mount 12, that is, the swing shaft of bullet cover 14 is installed on to the rotation axis hole 122 of firing mount 12, and two transverse planes that make bullet overlap 14 both sides contacts with the inner surface of firing mount 12.Then perforating bullet 15 is put into bullet cover 14.
Then, the backstay 52 of determining angle tool 5 is clamped to bullet cover 14, make to determine the rotation center of angle tool 5 and the rotation center superposition of bullet cover 14.Again the main part 51 of determining angle tool 5 is installed in to firing mount 12, makes the rotation center of the pointer 512 on main part 51 consistent with the rotation center of bullet cover 14.
Then, make the rhabodoid 521 of backstay 51 and the butting section butt of pointer 52, and they are adjusted to after predetermined angle, via the through hole 513 on main part 53, to the interior screw-in of screwed hole 123, hold out against screw 124, realize fixing bullet cover 14.
Adopt method same as described above, by other perforating bullets 15 on firing mount 12 be all adjusted to predetermined firing angle direction and fixing after, completed the assembling of the perforating bullet 15 on a firing mount 12.
Then, connect the priming systems such as detonating fuse, whole firing mount 12 penetrated in perforating gun 1, adjust perforation phase place, the spacer on locating ring assembly 13 is entered in the locating slot of the body of a gun 11 inwalls, and use screw fastening.
The parts such as recycling top connection 41 and lower contact 42 connect into perforating gun group by many perforating guns 1.Afterwards, at the two ends of perforating gun group, initiator joint 2 and gun breech 3 are installed respectively.Completed thus the assembling of whole shaft-well directional perforating device.
In addition, shaft-well directional perforating device of the present utility model and determine angle tool and be not limited to above-mentioned embodiment, within not departing from the scope of purport, can carry out various changes.
For example, the shape of firing mount is not limited to the rectangular hollow tubular in cross section, also can form other the shape such as circle, ellipse.The quantity of the screwed hole on firing mount is not limited to two, also can more than three or three screwed holes be set symmetrically in the surrounding of rotation axis hole, with fixing bullet cover more firmly.
Claims (10)
1. a shaft-well directional perforating device, it possesses the perforating gun group being comprised of at least one perforating gun, at the two ends of perforating gun group, is separately installed with initiator joint and gun breech, in perforating gun group, utilizes linkage that perforating gun is connected from beginning to end, it is characterized in that,
On the body of a gun of perforating gun, be formed with strip blind hole, the firing mount arranging is installed in the body of a gun vertically, the bullet cover that is placed with perforating bullet is installed in firing mount in the mode of rotation.
2. shaft-well directional perforating device according to claim 1, is characterized in that,
Firing mount is hollow tubular,
In the direction vertical with firing mount bearing of trend, offer and run through the horizontal rotation axis hole of firing mount, bullet cover pass through swing shaft pivotal mounting in rotation axis hole, and bullet to be enclosed within firing mount interior around swing shaft rotation,
Position corresponding on firing mount offers two through holes, and these two through holes are disposed at respectively the front and back side of perforating bullet.
3. shaft-well directional perforating device according to claim 2, is characterized in that,
Firing mount cross section is rectangular, two through holes are rectangular opening, and are located at respectively two wide of firing mount, and rotation axis hole runs through two leptoprosopy that are located at firing mount, the symmetrical side of the rotation axis hole on the leptoprosopy of a side is provided with screwed hole, is provided with the screw that holds out against that bullet cover is fixedly clamped in screwed hole.
4. according to the shaft-well directional perforating device described in claim 2 or 3, it is characterized in that,
The axial length of bullet cover is greater than the thickness of firing mount, and bullet cover two ends are outstanding from through hole respectively, and the butt on the protuberance of bullet cover and the edge, hole of through hole is limited in the rotation of bullet cover within the scope of predetermined rotation.
5. shaft-well directional perforating device according to claim 4, is characterized in that,
The perforation opposite direction of two adjacent perforating bullets.
6. shaft-well directional perforating device according to claim 5, is characterized in that,
Predetermined rotation scope is that angle is the scope of 0 degree～40 degree, and described angle refers to the angle between the direction vertical with firing mount bearing of trend and the perforation direction of perforating bullet.
7. according to the shaft-well directional perforating device described in claim 2 or 3, it is characterized in that,
Bullet cover is made by elastomeric material, overlaps radially both sides be provided with the transverse plane contacting with firing mount inner surface at bullet.
8. determine an angle tool, it,, for adjusting the perforation direction of the shaft-well directional perforating device described in claim 1 to 7, is characterized in that,
Describedly determine angle tool and formed by backstay and main part,
One end of backstay is formed with the chuck that can be sticked in bullet cover outer wall, and the other end forms the rhabodoid protruding out,
Main part is installed on firing mount, a side of main part be pivoted one with rhabodoid against L shaped pointer, on main part, be provided with a scale portion corresponding with pointer rotation angle.
9. according to claim 8ly determine angle tool, it is characterized in that,
The rotation center of the rotation center of backstay, bullet cover and the rotation center of pointer are identical,
Pointer is parallel with backstay.
According to claim 8 or claim 9 determine angle tool, it is characterized in that,
At main part, be provided with the through hole corresponding with screwed hole on firing mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396266.3U CN203420687U (en) | 2013-07-04 | 2013-07-04 | Vertical shaft oriented perforating device and angle settling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396266.3U CN203420687U (en) | 2013-07-04 | 2013-07-04 | Vertical shaft oriented perforating device and angle settling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420687U true CN203420687U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396266.3U Expired - Fee Related CN203420687U (en) | 2013-07-04 | 2013-07-04 | Vertical shaft oriented perforating device and angle settling tool |
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| CN (1) | CN203420687U (en) |
Cited By (6)
| 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 |
| CN106121595A (en) * | 2016-08-16 | 2016-11-16 | 吉林市双林射孔器材有限责任公司 | A kind of Oil/gas Well sleeve pipe screen cloth perforator |
| CN106194128A (en) * | 2015-01-16 | 2016-12-07 | 地球动力学公司 | The system and method for the perforating gun of exterior orientation internal calibrations |
| CN109751930A (en) * | 2019-03-11 | 2019-05-14 | 厦门爆破工程公司 | A kind of dismountable underground lonestone demolition set and blasting method |
| CN110359887A (en) * | 2018-04-11 | 2019-10-22 | 中国石油天然气股份有限公司 | Oil reservoir perforating methods and device |
| CN110671081A (en) * | 2019-10-12 | 2020-01-10 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | Perforating gun for horizontal well |
-
2013
- 2013-07-04 CN CN201320396266.3U patent/CN203420687U/en not_active Expired - Fee Related
Cited By (9)
| 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 |
| CN106194128A (en) * | 2015-01-16 | 2016-12-07 | 地球动力学公司 | The system and method for the perforating gun of exterior orientation internal calibrations |
| CN106194128B (en) * | 2015-01-16 | 2018-09-07 | 地球动力学公司 | The system and method for the perforating gun of exterior orientation internal calibrations |
| CN106121595A (en) * | 2016-08-16 | 2016-11-16 | 吉林市双林射孔器材有限责任公司 | A kind of Oil/gas Well sleeve pipe screen cloth perforator |
| CN110359887A (en) * | 2018-04-11 | 2019-10-22 | 中国石油天然气股份有限公司 | Oil reservoir perforating methods and device |
| CN110359887B (en) * | 2018-04-11 | 2021-11-30 | 中国石油天然气股份有限公司 | Oil reservoir perforation method and device |
| CN109751930A (en) * | 2019-03-11 | 2019-05-14 | 厦门爆破工程公司 | A kind of dismountable underground lonestone demolition set and blasting method |
| CN110671081A (en) * | 2019-10-12 | 2020-01-10 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | Perforating gun for horizontal well |
| CN110671081B (en) * | 2019-10-12 | 2022-06-07 | 中国石油天然气集团有限公司 | Perforating gun for horizontal well |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20140205 Termination date: 20210704 |