Protective joint for oil pipe transmission composite perforator

Abstract

The utility model provides a protective joint for an oil pipe transmission composite perforator, which comprises a perforator main body, a first flange is fixedly mounted at one end of the perforator main body, a first jacket is fixedly mounted outside the first flange, a second jacket is rotatably mounted at one end of the first jacket through a hinge, and a second flange is fixedly mounted at the other end of the second jacket through a hinge. Two fixing blocks are fixedly installed at the other end of the first clamping sleeve, and clamping grooves matched with the fixing blocks are formed in one end of the second clamping sleeve. According to the protection connector for the oil pipe transmission composite perforator, after the first flange is attached to the second flange, the second clamping sleeve is rotated, the fixing block is clamped into the clamping groove, then the fixing block is fixed into the clamping groove through the bolt, and then the first clamping sleeve and the second clamping sleeve are fixed; the first clamping sleeve and the second clamping sleeve effectively protect the connecting position of the perforator body, installation is firm, and the situation of poor contact cannot occur in the using process.

Description

Technical Field

[0001] The utility model relates to the field of protection joints, in particular to a protection joint for a tubing-conveyed perforator. Background Technique

[0002] The compound perforation technology is a new perforation method developed in recent years that can perform the two processes of conventional perforation and high-energy gas fracturing at one time. It is mainly used for perforation operations in low-porosity and low-permeability formations. Its main principle is to add high-energy composite gunpowder to a conventional perforator to form a compound perforator, and use a tubing or cable to transport the compound perforator to the oil layer position and detonate it. While the shaped charge perforator perforates, the metal jet or high-temperature particles generated ignite the composite gunpowder. The composite gunpowder burns to produce a large amount of gas, forming a relatively high pressure pulse, which fractures the formation through the perforation channels, can destroy the compaction zone caused by perforation, form cracks of a certain length in the rock, improve the oil and gas flow channels, and increase the oil production rate of oil and gas wells. And the perforator needs to use a protection joint.

[0003] However, the protection joints in the existing market have poor installation firmness during use and cannot protect the perforator joints. The perforator is used underground, and due to the poor protection structure at the interface, it is easy for mud to enter, resulting in poor contact.

[0004] Therefore, it is necessary to provide a protection joint for a tubing-conveyed perforator to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides a protection joint for a tubing-conveyed perforator, which solves the problems that the protection joints in the existing market have poor installation firmness during use, cannot protect the perforator joints, and the perforator is used underground, and due to the poor protection structure at the interface, it is easy for mud to enter, resulting in poor contact.

[0006] The utility model provides a protection joint for a tubing-conveyed perforator, comprising: a perforator main body, a first flange is fixedly installed at one end of the perforator main body, a first jacket is fixedly installed outside the first flange, a second jacket is rotatably installed at one end of the first jacket through a hinge, a fixing block is fixedly installed at the other end of the first jacket, and the number of the fixing blocks is two. A clamping groove adapted to the fixing block is formed at one end of the second jacket, and the number of the clamping grooves is two. A first mounting hole is formed on one side of the outer part of each of the two fixing blocks, a second mounting hole is formed on one side of the outer part of the second jacket, the horizontal center line of the first mounting hole coincides with the horizontal center line of the second mounting hole, and a bolt is arranged between the first mounting hole and the second mounting hole.

[0007] Preferably, a second flange is attached to the outer side of the first flange, and a wire is fixedly installed at the center point of the outer side of the second flange.

[0008] Preferably, the first jacket is adapted to the first flange and the second flange, and the second jacket is adapted to the first flange and the second flange.

[0009] Preferably, a conductive block is fixedly installed at the center point of the other outer side of the second flange, and the conductive block is electrically connected to the wire.

[0010] Preferably, positioning blocks are fixedly installed at equal intervals in a circular pattern on the outer side of the conductive block, and the number of positioning blocks is multiple.

[0011] Preferably, positioning grooves are formed at equal intervals in a circular pattern on the inner wall of the perforator body, and the number of positioning grooves is multiple. The positioning grooves are adapted to the positioning blocks.

[0012] Compared with the related art, a protection joint for a tubing-conveyed composite perforator provided by the present invention has the following beneficial effects:

[0013] After the first flange and the second flange are attached, rotate the second jacket, the fixing block is inserted into the inner part of the card slot, and then use bolts to fix the fixing block in the card slot, so that the first jacket and the second jacket are fixed. The first jacket and the second jacket effectively protect the connection part of the perforator body, and the installation is firm, and there will be no poor contact during use, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a preferred embodiment of a protection joint for a tubing-conveyed composite perforator provided by the present invention;

[0015] Figure 2 is Figure 1 a schematic diagram of the installation structure of the conductive block shown;

[0016] Figure 3 is Figure 1 a schematic diagram of the structure of the positioning groove shown.

[0017] In the figure: 1, perforator body; 2, first flange; 3, first jacket; 4, second jacket; 5, fixing block; 6, first mounting hole; 7, card slot; 8, second mounting hole; 9, bolt; 10, second flange; 11, wire; 12, conductive block; 13, positioning block; 14, positioning groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3 , in which Figure 1 is a schematic structural view of a preferred embodiment of a protection joint for a tubing-conveyed composite perforator provided by the present utility model; Figure 2 is Figure 1 a schematic installation structure view of the conductive block shown; Figure 3 is Figure 1 a schematic structure view of the positioning groove shown. A protection joint for a tubing-conveyed composite perforator includes: a perforator main body 1, a first flange 2 is fixedly installed at one end of the perforator main body 1, a first jacket 3 is fixedly installed outside the first flange 2, one end of the first jacket 3 is rotatably installed with a second jacket 4 through a hinge, the other end of the first jacket 3 is fixedly installed with fixing blocks 5, and the number of the fixing blocks 5 is two. A clamping groove 7 adapted to the fixing blocks 5 is opened at one end of the second jacket 4, and the number of the clamping grooves 7 is two. First mounting holes 6 are opened on one side of the outer part of the two fixing blocks 5, a second mounting hole 8 is opened on one side of the outer part of the second jacket 4. The horizontal center line of the first mounting hole 6 coincides with the horizontal center line of the second mounting hole 8. A bolt 9 is arranged between the first mounting hole 6 and the second mounting hole 8. After the first flange 2 and the second flange 10 are attached, the second jacket 4 is rotated, the fixing blocks 5 are inserted into the internal part of the clamping grooves 7, and then the fixing blocks 5 are fixed in the internal part of the clamping grooves 7 by using the bolt 9, so that the first jacket 3 and the second jacket 4 are fixed. The first jacket 3 and the second jacket 4 effectively protect the connection part of the perforator main body 1, and the installation is firm, and the situation of poor contact will not occur during the use process, improving the practicability.

[0020] A second flange 10 is attached to one side of the outer part of the first flange 2. A wire 11 is fixedly installed at the center point of one side of the outer part of the second flange 10. The first jacket 3 is adapted to the first flange 2 and the second flange 10, and the second jacket 4 is adapted to the first flange 2 and the second flange 10. A conductive block 12 is fixedly installed at the center point of the other side of the outer part of the second flange 10. The conductive block 12 is electrically connected to the wire 11. One end of the wire 11 is installed with a plug, and the plug is connected to a power supply. Electricity enters the internal part of the conductive block 12 through the wire 11, and the conductive block 12 inputs electric energy into the perforator main body 1 to make the perforator main body 1 work.

[0021] A plurality of positioning blocks 13 are fixedly installed at equal intervals in a ring shape on the outer part of the conductive block 12, and the number of the positioning blocks 13 is multiple. A plurality of positioning grooves 14 are opened at equal intervals in a ring shape on the inner wall of the perforator main body 1, and the number of the positioning grooves 14 is multiple. The positioning grooves 14 are adapted to the positioning blocks 13. The conductive block 12 is inserted into the internal part of the perforator main body 1, and the positioning blocks 13 are inserted into the internal part of the positioning grooves 14, so that the first flange 2 and the second flange 10 cannot rotate, improving the connection stability.

[0022] The working principle of a protection joint for a tubing-conveyed combined perforator provided by the present utility model is as follows:

[0023] The conductive block 12 is inserted into the interior of the perforator body 1, and the positioning block 13 is snapped into the interior of the positioning groove 14, thereby preventing rotation between the first flange 2 and the second flange 10, improving the connection stability. After the first flange 2 and the second flange 10 are fitted, the second jacket 4 is rotated, the fixing block 5 is snapped into the interior of the card slot 7, and then the fixing block 5 is fixed in the interior of the card slot 7 by using the bolt 9, thereby fixing the first jacket 3 and the second jacket 4. The first jacket 3 and the second jacket 4 effectively protect the connection part of the perforator body 1, and the installation is firm, and there will be no poor contact during use, improving the practicability. One end of the wire 11 is installed with a plug, and the plug is connected to a power source. Electricity enters the interior of the conductive block 12 through the wire 11, and the conductive block 12 inputs electrical energy into the perforator body 1, causing the perforator body 1 to work.

[0024] Compared with the related art, a protection joint for a tubing-conveyed combined perforator provided by the present utility model has the following beneficial effects:

[0025] After the first flange 2 and the second flange 10 are fitted, the second jacket 4 is rotated, the fixing block 5 is snapped into the interior of the card slot 7, and then the fixing block 5 is fixed in the interior of the card slot 7 by using the bolt 9, thereby fixing the first jacket 3 and the second jacket 4. The first jacket 3 and the second jacket 4 effectively protect the connection part of the perforator body 1, and the installation is firm, and there will be no poor contact during use, improving the practicability.

[0026] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A protective joint for a composite perforator transmitted by an oil pipe, comprising: A perforator body (1), characterized in that: a first flange (2) is fixedly mounted on one end of the perforator body (1), a first jacket (3) is fixedly mounted on the outside of the first flange (2), a second jacket (4) is rotatably mounted on one end of the first jacket (3) through a hinge, a fixing block (5) is fixedly mounted on the other end of the first jacket (3), and the number of the fixing blocks (5) is two, a slot (7) matched with the fixing block (5) is opened at one end of the second jacket (4), and the number of the slots (7) is two, a first mounting hole (6) is opened on one side of the outside of the two fixing blocks (5), a second mounting hole (8) is opened on one side of the outside of the second jacket (4), a horizontal center line of the first mounting hole (6) and a horizontal center line of the second mounting hole (8) are overlapped, and a bolt (9) is arranged between the first mounting hole (6) and the second mounting hole (8).

2. The protective joint for a composite perforator transmitted by a tubing according to claim 1, characterized in that: A second flange (10) is attached to an outer side of the first flange (2), and a conductor (11) is fixedly installed at a center point of an outer side of the second flange (10).

3. The protective joint for a composite perforator transmitted by a tubing according to claim 2, characterized in that: The first jacket (3) is adapted to fit between the first flange (2) and the second flange (10), and the second jacket (4) is adapted to fit between the first flange (2) and the second flange (10).

4. The protective joint for a composite perforator transmitted by a tubing according to claim 3, characterized in that: A conductive block (12) is fixedly mounted at the center point of the other side of the second flange (10), and the conductive block (12) is electrically connected to the wire (11).

5. The protective joint for a composite perforator transmitted by a tubing according to claim 4, characterized in that: Positioning blocks (13) are fixedly mounted in an equidistant annular shape on the outside of the conductive block (12), and there are a plurality of positioning blocks (13).

6. A protective joint for a composite perforator transmitted by a tubing according to claim 5, characterized in that: The inner wall of the perforator body (1) is provided with equidistant annular positioning grooves (14), and there are a plurality of positioning grooves (14). The positioning grooves (14) are matched with the positioning blocks (13).

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