CN201428439Y

CN201428439Y - Energy-increased explosion enlargement type perforating gun single connector

Info

Publication number: CN201428439Y
Application number: CN2009201002969U
Authority: CN
Inventors: 禹栽星
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-03-24
Anticipated expiration: 2019-06-30

Abstract

The utility model discloses an energy-increased explosion enlargement type perforating gun single connector. A central hole is formed on the single connector (4), the upper end of the single connectoris connected with an upper bullet stand (1) through an upper positioning plate (2), the lower end of the single connector is connected with a lower bullet stand (1) through a lower positioning plate(10), the lower end of an upper explosive rope righting body (5) is inserted in the central hole at the upper part of the single connector (4), the upper end of the upper explosive rope righting body(5) is in screwed connection with the upper positioning plate (2), the upper end of a lower explosive rope righting body (8) is inserted in the central hole at the upper part of the single connector (4), the lower end of the lower explosive rope righting body (8) is in screwed connection with the lower positioning plate (10), a compaction body (9) is installed between the lower explosive rope righting body (8) and the lower positioning plate (10), and an energy-increasing device (7) with a righting body (6) is installed between an upper explosion transfer pipe (17) and a lower explosion transfer pipe (18). The utility model reduces the blind areas between the two perforating guns, simplifies the structure, shortens the occupied distance, and can increase the bullet loading amount on the unit length; the energy-increasing device is arranged in the single connector, thereby making up explosion initiation even accident due to explosive rope burning attenuation, and improves the explosiontransfer rate.

Description

Energization expands quick-fried formula perforating gun list joint

One, technical field

The utility model relates to perforating gun used in the oilfield well completion field, particularly a kind of energization expands quick-fried formula perforating gun list joint.

Two, background technology

Perforating gun is the special equipment during oil field development is produced, and after being used for oil drilling and finishing, the borehole wall is carried out perforation.The perforating gun that uses has two transition joints up and down at present, is also referred to as split type perforating gun or connection rifle, is that two transition joints are to connecting up and down between two perforating gun rifle bodies, and the greatest problem that this structure exists is the operating procedure complexity; Account for apart from long, the perforation blind area is big; Detonating fuse is low in perforating gun blank area propagation of explosion efficient, influences the detonation velocity of subordinate's perforating bullet.

Three, summary of the invention

Goal of the invention of the present utility model provides a kind of energization and expands quick-fried formula perforating gun list joint, solves the former joint design complexity of using, and the problem that the perforation blind area is big improves propagation of explosion speed.

The technical solution of the utility model is: this energization expands quick-fried formula perforating gun list joint by upper and lower detonating fuse centralizer body, upper and lower positioning disk, upper and lower detonating primer constitutes, and single joint has centre bore, the upper end connects higher level's firing mount by last positioning disk, and positioning disk connected subordinate's firing mount under the lower end was passed through; Insert in the centre bore on single joint top the lower end of last detonating fuse centralizer body, upper end and last positioning disk screwed connection, insert in the centre bore on single joint top the upper end of following detonating fuse centralizer body, and fastening body is equipped with between following detonating fuse centralizer body and the following positioning disk in lower end and following positioning disk screwed connection; The energizer of band centralizer body is housed between the upper and lower detonating primer.

The utlity model has following beneficial effect: the utility model can reduce to 4cm by 13cm with the blind area between the two-stage perforating gun, simplifies the structure, and has shortened accounting for distance, can increase on the unit length to shoot quantity; Be provided with energizer in single joint, remedied, improved propagation of explosion speed owing to the decay of detonating fuse combustion speed influences the factor of detonating even causing the accident.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model.

1-higher level's firing mount among the figure, the last positioning disk of 2-, the 3-shop bolt, the single joint of 4-, the last detonating fuse centralizer body of 5-, 6-energizer centralizer body, the 7-energizer, detonating fuse centralizer body under the 8-, 9-fastening body, positioning disk under the 10-, detonating fuse 12-goes up the firing mount 14-of detonating fuse 13-subordinate connected nail 15-pressing pin 16-sealing ring 17-and goes up detonating primer under the detonating primer 18-under the 11-.

Four, the specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present utility model, as shown in Figure 1, energization expand quick-fried formula perforating gun list joint by last positioning disk 2, go up detonating fuse centralizer body 5, detonating fuse centralizer body 8, positioning disk 10 down down, last detonating primer 17, detonating primer 18 formations down.The central longitudinal of single joint 4 is to a through hole is arranged, insert in the centre bore on single joint 4 tops the lower end of last detonating fuse centralizer body 5, upper end and last positioning disk 2 screwed connections, insert in the centre bore on single joint 4 tops the upper end of following detonating fuse centralizer body 8, lower end and following positioning disk 10 screwed connections.The top of following positioning disk 10 1/3rd places from inside to outside has a step, and fastening body 9 is installed at the step place, fastening body 9 and following positioning disk 10 screwed connections.The energizer 7 of band centralizer body 6 is housed between last detonating primer 17 and the following detonating primer 18.Energizer 7 in the scheme is one the propagation squib of gunpowder to be housed.

During installation, earlier energizer 7 is contained in the energizer centralizer body 6, pack in single joint together with energizer centralizer body 6 in the middle of, sealing ring 16 is installed in the annular groove of energizer centralizer body 6.Last detonating fuse 12 is set upright by last detonating fuse centralizer body 5, after last detonating fuse centralizer body 5 usefulness detonating fuse pressing pins 15 compress detonating primer 17, insert in the centre bore on single joint top its lower end, last positioning disk 2 screwed connections that shop bolt 3 is equipped with in the outside, upper end and the side of last detonating fuse centralizer body 5, last positioning disk 2 is connected with higher level's firing mount 1 by firing mount connected nail 14 with the upper end of single joint.The shell of single joint and perforating gun is when carrying out screwed connection, and the step in the perforating gun shell just is pressed on last positioning disk 2 on the end face of single joint.In like manner, following detonating fuse 11 is set upright by following detonating fuse centralizer body 8, after following detonating fuse centralizer body 8 usefulness pressing pins compress down detonating primer 18, with positioning disk under the screwed connection 10, then the upper end is inserted in single joint lower central hole, be connected with subordinate firing mount 13 with the firing mount connected nail.Because fastening body 9 is contained in down the step place on the top of positioning disk 10, be positioned at the centre of detonating fuse centralizer body 8 and following positioning disk 10 down, and with following positioning disk 10 screwed connections.Following positioning disk 10 can will descend positioning disk 10 to compress by screwed connection perforating gun housing with after subordinate firing mount 13 usefulness firing mount connected nails are connected.

Single joint is with after upper and lower perforating gun rifle body is connected, single joint, the superior and the subordinate's firing mount, upper and lower perforating gun rifle body become as a whole, because of the connecting portion of centre has only a joint, can make the blind area reduce to 4cm, and can on unit length, increase and shoot quantity by 13cm.The energizer that is provided with in single joint can be launches makeup energy next time, can not influence the speed of detonating because of the decay of detonating fuse combustion speed.

Claims

1, a kind of energization expands quick-fried formula perforating gun list joint, by upper and lower detonating fuse centralizer body, upper and lower positioning disk, upper and lower detonating primer constitutes, single joint (4) has centre bore, and the upper end connects higher level's firing mount (1) by last positioning disk (2), and positioning disk (10) connected subordinate's firing mount (13) under the lower end was passed through; It is characterized in that: insert in the centre bore on single joint (4) top the lower end of going up detonating fuse centralizer body (5), upper end and last positioning disk (2) screwed connection, insert in the centre bore on single joint (4) top the upper end of following detonating fuse centralizer body (8), fastening body (9) is equipped with between following detonating fuse centralizer body (8) and the following positioning disk (10) in lower end and following positioning disk (10) screwed connection; The energizer (7) of band centralizer body (6) is housed between last detonating primer (17) and the following detonating primer (18).

2, energization according to claim 1 expands quick-fried formula perforating gun list joint, it is characterized in that: described energizer (7) is one the propagation squib of gunpowder to be housed.

3, energization according to claim 1 expands quick-fried formula perforating gun list joint, it is characterized in that: described positioning disk (10) down and fastening body (9) are with screwed connection.