CN217501628U

CN217501628U - Novel perforating bullet shell

Info

Publication number: CN217501628U
Application number: CN202221708247.5U
Authority: CN
Inventors: 王志成
Original assignee: Ningbo Yuheng Energy Technology Co ltd
Current assignee: Ningbo Yuheng Energy Technology Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-27
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a novel perforating bullet shell, which comprises a housin, the head of casing is provided with the column connecting piece, the center of column connecting piece set up with the detonation tank of casing inner chamber intercommunication, the one end of column connecting piece is formed with the mounting groove that supplies the detonating cord installation, the other end of column connecting piece is provided with the installation piece, the periphery cross-section of installation piece is regular polygon, the lateral wall that the column connecting piece was kept away from to the installation piece is laminated mutually with the head lateral wall of casing, the annular has been seted up to the installation piece, the head lateral wall of casing is provided with the go-between that the dismantlement formula is connected in the annular. The utility model discloses possess and to carry out the split and fix it to the processing part to processing mounting groove reduces the processing degree of difficulty of mounting groove, the lower advantage of manufacturing cost.

Description

Novel perforating bullet shell

Technical Field

The utility model relates to a perforation shell case technical field, in particular to novel perforation shell case.

Background

The perforation of the oil and gas well is a key technology in petroleum exploration and development, and the perforating bullet is used for perforating a casing and a cement sheath which seal a target layer underground and deeply penetrate into the target layer to form an effective seepage channel between the target layer and a shaft, so that the oil and gas well is ensured to obtain due capacity. The head of the existing perforating bullet shell is provided with a mounting groove for mounting a powder detonating cord. However, the existing perforating bullet case is generally of an integrated structure, the mounting groove at the head of the existing perforating bullet case is generally machined by a milling machine, and because the inner cavity and the appearance of the perforating bullet case are circular, the perforating bullet case is extremely difficult to fix and has larger machining difficulty, and the mounting groove is easy to damage due to misoperation in the machining process, the whole perforating bullet case is scrapped, and the manufacturing cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough and novel perforation shell case that designs of above-mentioned technique, it possesses can carry out the split to the processing part and fix it to processing mounting groove reduces the processing degree of difficulty of mounting groove, the lower advantage of manufacturing cost.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a novel perforating bullet shell, includes the casing, the head of casing is provided with the column connecting piece, the center of column connecting piece seted up with the groove of detonating of casing inner chamber intercommunication, the one end of column connecting piece is formed with the mounting groove that supplies the detonating cord installation, the other end of column connecting piece is provided with the installation piece, the periphery cross-section of installation piece is regular polygon, the installation piece is kept away from the lateral wall of column connecting piece with the head lateral wall of casing is laminated mutually, the annular has been seted up to the installation piece, the head lateral wall of casing be provided with the dismantlement formula connect in go-between in the annular.

Preferably, the outer peripheral side wall of the connection ring is formed with an external thread structure, and the outer peripheral side wall of the connection ring is in threaded connection with the inner groove wall of the mounting groove.

Preferably, the mounting block is sleeved with a fastening sleeve, the fastening sleeve is provided with a jack for the columnar connecting piece to be inserted, and the peripheral side wall of the fastening sleeve is attached to the peripheral side wall of the shell.

Preferably, the adapter sleeve corresponds jack department is formed with the cover and locates the protective sheath that the column is connected, the inner wall of protective sheath with the inner wall of mounting groove is inconsistent, the adapter sleeve adopts plastic material injection moulding.

Preferably, the fastening sleeve is provided with an insert ring on the side wall close to the shell, and the side wall of the head of the shell is provided with a slot for fixedly connecting the insert ring.

Preferably, the end part of the inserting ring inserted into the inserting groove is provided with a clamping ring, and the inserting groove is provided with a clamping groove for clamping the clamping ring.

Preferably, the periphery of the shell is provided with a clamping groove, and the clamping groove is annular.

Preferably, the inner groove wall of the clamping groove is of a stepped structure.

Preferably, the shell is sleeved with a rubber ring at a position corresponding to the clamping groove, and the inner wall of the rubber ring is abutted to the inner groove wall of the clamping groove.

Preferably, the side wall of the rubber ring is provided with an identification groove.

Compared with the prior art, the beneficial effects of the utility model are that: under the cooperation of go-between and annular, the head in the casing is detachably installed in the column connecting piece accessible installation piece for installing the explosive fuse, when this perforation shell case of production, the staff can part with the casing with connecting the column connecting piece, the structure that utilizes the installation piece is fixed with the column connecting piece, so that the staff uses the milling machine to carry out milling process to the column connecting piece, need not to fix the casing, ensure to a certain extent that the staff adopts the efficiency and the quality of milling flutes process processing mounting groove, the processing degree of difficulty has been reduced, and the processing of column connecting piece is carried out alone, if the damage appears, need not to scrap the whole processing of this perforation shell case, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a first cross-sectional view of the embodiment;

FIG. 3 is a sectional view of the second embodiment.

In the figure: 1. a housing; 2. a columnar connecting piece; 3. a detonation trough; 4. mounting grooves; 5. mounting blocks; 6. a ring groove; 7. a connecting ring; 8. a jack; 9. a protective sleeve; 10. inserting a ring; 11. a slot; 12. a snap ring; 13. a card slot; 14. fastening sleeves; 15. a clamping groove; 16. a rubber ring; 17. the slot is identified.

Detailed Description

The invention is further described by the following embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, fig. 2, fig. 3, a novel perforating bullet shell, including casing 1, casing 1 external diameter drill way is the step form, can realize with perforating gun's rapid Assembly, the head of casing 1 is provided with columnar connecting piece 2, the detonation tank 3 with the inner chamber intercommunication of casing 1 is seted up at the center of columnar connecting piece 2, the one end of columnar connecting piece 2 is formed with the mounting groove 4 that supplies the detonating cord installation, the other end of columnar connecting piece 2 is provided with installation piece 5, the lateral wall that columnar connecting piece 2 was kept away from to installation piece 5 is laminated with the head lateral wall of casing 1 mutually, annular 6 has been seted up to installation piece 5, the head lateral wall of casing 1 is provided with the go-between 7 that the dismantlement formula is connected in annular 6.

Under the cooperation of go-between 7 and annular 6, be used for installing 2 accessible installation pieces 5 detachable installations in the head of casing 1 of the column connecting piece of explosive fuse, when this perforating bullet shell of production, the staff can part column connecting piece 2 and casing 1, the periphery cross-section of installation piece 5 is regular polygon, the usable structure of installation piece 5 of staff is fixed column connecting piece 2, so that the staff uses the milling machine to mill columnar connecting piece 2, need not to fix casing 1, ensure to a certain extent that the staff adopts the efficiency and the quality of milling flutes process processing mounting groove 4, the processing degree of difficulty has been reduced, and process column connecting piece 2 alone, if the damage appears, need not to scrap the whole processing of scrapping of this perforating bullet shell, and manufacturing cost is reduced.

The periphery lateral wall of go-between 7 is formed with external screw thread structure, and the periphery lateral wall of go-between 7 and the interior cell wall threaded connection of mounting groove 4 treat that mounting groove 4 processes the back that finishes, and the staff can adopt manual or electric spanner centre gripping installation piece 5, accomplishes the threaded connection of go-between 7 and mounting groove 4 fast, improves the production efficiency of this perforation shell case.

The mounting block 5 is sleeved with the fastening sleeve 14, the fastening sleeve 14 is provided with the jack 8 for the connection of the columnar connecting piece 2 in a penetrating mode, the inner wall of the fastening sleeve 14 abuts against the outer wall of the mounting hole, the mounting block 5 is well protected, the peripheral side wall of the fastening sleeve 14 is attached to the peripheral side wall of the casing 1, and interference of the mounting block 5 when the perforating bullet casing is mounted on a perforating gun and connected can be avoided. The protective sheath 9 that the column is connected is located to the jack 8 department that corresponds of adapter sleeve 14, the inner wall of protective sheath 9 is inconsistent with the inner wall of mounting groove 4, protective sheath 9 is used for protecting mounting groove 4, also can avoid the explosive fuse to be scratched by the metal acute angle on mounting groove 4 in the installation, the security is improved, adapter sleeve 14 adopts plastic material injection moulding, possess certain stress deformation, during the explosive fuse is assembled to mounting groove 4, protective sheath 9 can cooperate mounting groove 4 to block the explosive fuse, the convenience of use of perforation shell case has been improved.

The lateral wall that is close to casing 1 of adapter sleeve 14 is provided with inserts ring 10, the slot 11 that supplies to insert ring 10 fixed connection is seted up to the head lateral wall of casing 1, slot 11 with insert the installation that ring 10 is used for guiding adapter sleeve 14, the tip that inserts ring 10 and insert slot 11 is provided with snap ring 12, slot 11 sets up the draw-in groove 13 that supplies snap ring 12 joint, snap ring 12 inserts the terminal surface slope setting of slot 11, guide snap ring 12 pressurized so that snap ring 12 passes through slot 11 and enters into in draw-in groove 13, snap ring 12 offsets tightly with draw-in groove 13, can prevent to insert ring 10 and break away from slot 11, improve being connected between adapter sleeve 14 and the casing 1, and then make column connecting piece 2 more reliable with the fixed connection who connects.

The periphery of casing 1 has been seted up and has been annular centre gripping recess 15, centre gripping recess 15 extends along casing 1's circumference, the staff can be connected the installation with the column earlier and be fixed in 1 head of casing, reuse the bench vice on carry out the lock centre gripping to centre gripping recess 15, the inner wall of centre gripping recess 15 is the echelonment structure, make casing 1's centre gripping location more firm, treat casing 1 fixed back, the staff can process mounting groove 4 on column connecting piece 2, or carry out milling process to the inner wall of mounting groove 4 and make its internal diameter enlarge, mounting groove 4 processing finishes the back, choose for use to have with the fastening sleeve 14 of the protective sheath 9 of mounting groove 4 adaptation and locate on installation piece 5 its cover.

Casing 1 corresponds centre gripping recess 15 department cover and is equipped with rubber circle 16, and identification groove 17 has been seted up to the lateral wall of rubber circle 16, and the staff's accessible pastes the label on identification groove 17 to in the mounting groove 4 of the different specifications of differentiation.

The rubber ring 16 is made of high-temperature-resistant rubber materials, the inner wall of the rubber ring 16 is inconsistent with the inner groove wall of the clamping groove 15, the outer wall of the rubber ring 16 is attached to the outer package of the casing 1, the rubber ring 16 is used for filling the clamping groove 15, and therefore the perforating bullet can be smoothly installed in a bullet hole in a perforating gun, the sealing performance of the outer wall of the casing 1 is improved, and water leakage and oil leakage are avoided.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a novel perforation shell case which characterized by: including casing (1), the head of casing (1) is provided with column connecting piece (2), the center of column connecting piece (2) seted up with detonation tank (3) of casing (1) inner chamber intercommunication, the one end of column connecting piece (2) is formed with mounting groove (4) that supply the detonating cord installation, the other end of column connecting piece (2) is provided with installation piece (5), the periphery cross-section of installation piece (5) is regular polygon, installation piece (5) are kept away from the lateral wall of column connecting piece (2) with the head lateral wall of casing (1) laminates mutually, annular (6) have been seted up to installation piece (5), the head lateral wall of casing (1) be provided with the dismantlement formula connect in go-between (7) in annular (6).

2. The novel perforating charge case of claim 1 wherein: the outer peripheral side wall of the connecting ring (7) is provided with an external thread structure, and the outer peripheral side wall of the connecting ring (7) is in threaded connection with the inner groove wall of the mounting groove (4).

3. The novel perforating charge case of claim 1 wherein: the mounting block (5) is sleeved with a fastening sleeve (14), the fastening sleeve (14) is communicated with a jack (8) for the columnar connecting piece (2) to be plugged, and the peripheral side wall of the fastening sleeve (14) is attached to the peripheral side wall of the shell (1).

4. The novel perforating charge case of claim 3 wherein: adapter sleeve (14) correspond jack (8) department is formed with the cover and locates protective sheath (9) that the column is connected, the inner wall of protective sheath (9) with the inner wall of mounting groove (4) is inconsistent, adapter sleeve (14) adopt plastic material injection moulding.

5. The novel perforating charge case of claim 4, wherein: the side wall of the fastening sleeve (14) close to the shell (1) is provided with an inserting ring (10), and the side wall of the head of the shell (1) is provided with a slot (11) for fixedly connecting the inserting ring (10).

6. The novel perforating charge case of claim 5 wherein: insert ring (10) and insert the tip of slot (11) is provided with snap ring (12), slot (11) have seted up the confession snap ring (12) joint draw-in groove (13).

7. The novel perforating charge case of claim 1 wherein: the clamping groove (15) is formed in the periphery of the shell (1), and the clamping groove (15) is annular.

8. The novel perforating charge case of claim 7, wherein: the inner groove wall of the clamping groove (15) is of a step-shaped structure.

9. The novel perforating charge case of claim 7 or 8, characterized in that: the shell (1) corresponds clamping groove (15) department cover is equipped with rubber circle (16), the inner wall of rubber circle (16) with the inner tank wall of clamping groove (15) is inconsistent.

10. The novel perforating charge case of claim 9 wherein: the side wall of the rubber ring (16) is provided with an identification groove (17).