Double-hole floating stopping cap

Abstract

The utility model relates to the technical field of petroleum and natural gas geological exploration, and discloses a double-hole floating-stopping cap which comprises a warped wing cap body, a double-pipe inner sleeve is sleeved in the warped wing cap body, a double-column protective cover is sleeved at the top of the double-pipe inner sleeve and located in the warped wing cap body, a plurality of warped wing bodies are fixed at the top of the warped wing cap body, and the warped wing bodies are fixed at the top of the warped wing cap body. Radial holes are symmetrically formed in the surface of the side wall of the warped fin cap body, an inner boss is arranged in the warped fin body, hollow pipes are symmetrically fixed in the double-pipe inner sleeve in a penetrating mode, and a lead opening is formed in the position, located above the double-pipe inner sleeve, of the top of each hollow pipe; and a plurality of convex clamping tables are fixed on the outer surface of the side wall of the double-pipe inner sleeve. According to the utility model, the two hollow tubes are arranged to realize the assembly of the industrial digital electronic detonator, the excitation success rate of the group of seismic explosive columns is improved, the misfire is reduced, the operation success rate is improved, the operation is convenient, the assembly applicability is strong, and the assembly effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum and natural gas geological exploration, in particular to a double-hole anti-floating cap. Background Art

[0002] Industrial digital electronic detonators have the same diameter as ordinary exploration electric detonators, but different lengths. The length of industrial digital electronic detonators is 102-110mm, which is about 50mm longer than ordinary exploration electric detonators. There are problems with the adaptation and installation of detonators of different lengths. When the seismic source charge column group is placed in the blasting hole, there is a problem of the diameter adaptation between the seismic source charge column and the blasting hole. If the diameter of the blasting hole is too large, it will directly affect the placement of the seismic source charge column group and indirectly affect the blasting effect. This problem also needs to be solved;

[0003] Utility model patent CN205175252U "Anti-floating Cap" and utility model patent CN201429387Y "Anti-floating Cap for Seismic Charge Column" both disclose anti-floating and anti-floating caps for seismic charge column products. Due to their structural principles, they cannot solve the problem of using seismic charge column products with seismic exploration electronic detonators with a length of 110 mm. The technology disclosed in utility model patent CN217465550U "Anti-floating Cap for Electronic Detonator for Seismic Charge Column and Seismic Charge Column with Anti-floating Cap" can only use one seismic exploration electronic detonator to excite and detonate a group of seismic charge column products, which cannot meet the requirements of geological exploration teams to use two seismic exploration electronic detonators to excite and detonate a group of seismic charge column products to reduce the probability of blind shots. Improved design is needed. For this purpose, a double-hole anti-floating cap is designed. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to propose a double-hole anti-floating cap, which realizes the assembly of industrial digital electronic detonators by setting two hollow tubes, improves the success rate of exciting the group of source charge columns, reduces blind shots, improves the success rate of operations, is easy to operate, has strong assembly applicability, and has a good assembly effect.

[0005] The double-hole anti-floating cap proposed by the utility model comprises a wing-tilted cap body, the interior of the wing-tilted cap body is sleeved with a double-tube inner sleeve, and the top of the double-tube inner sleeve and located inside the wing-tilted cap body is sleeved with a double-column protective cover;

[0006] A plurality of wing bodies are fixed on the top of the wing cap body, radial holes are symmetrically opened on the side wall surface of the wing cap body, and an inner boss is opened inside the wing body;

[0007] A hollow tube is symmetrically fixed through the inside of the double-tube inner sleeve, a lead-in notch is provided at the top of the hollow tube and above the double-tube inner sleeve, and a plurality of external convex clamping platforms are fixed on the outer surface of the side wall of the double-tube inner sleeve;

[0008] A limiting platform is symmetrically fixed to the middle of the lower surface of the double-column protective cover, a cylindrical boss is fixed to the lower surface of the limiting platform, and a reinforcing rib is fixed to the upper surface of the double-column protective cover.

[0009] Preferably, the double-tube inner sleeve is inserted from the top of the wing-lifting cap body, and the outer convex clamping platform extends to the bottom of the inner convex platform, and the outer convex clamping platform is clamped with the inner convex platform.

[0010] Preferably, a groove is provided on the outer surface of the double-tube inner sleeve and is spaced apart from the outer convex clamping platform.

[0011] Preferably, the cylindrical boss is fitted in a one-to-one correspondence with the top of the hollow tube.

[0012] Preferably, a detonator body is placed inside the hollow tube respectively, and the lead of the detonator body is led out from the lead notch and the radial hole in sequence to the outside of the wing cap body.

[0013] Preferably, a cylindrical external thread is provided on the surface of the wing-lifting cap body below the radial hole.

[0014] The beneficial effects of the utility model are:

[0015] 1. Connect several sections of seismic charge column products to be lowered into the well head to tail, and screw a double-hole anti-floating cap on the last section of the seismic charge column. After tightening, the two hollow tubes of the double-tube inner sleeve embedded in the double-hole anti-floating cap may not be coaxial with the two detonator holes of the seismic charge column. The two hollow tubes of the double-tube inner sleeve can be made coaxial with the two detonator holes of the seismic charge column by rotating the double-tube inner sleeve. At this time, insert two seismic exploration electronic detonators into the two hollow tubes respectively, lead out the seismic exploration electronic detonator foot wires from the lead-in notches of the double-tube inner sleeve hollow tubes, and then pass through the two radial holes of the wing cap body and tie them to the outside of the seismic charge column product. Then, press the double-column protective cover on the hollow tube to prevent the seismic exploration electronic detonator from moving, and then go down to the well. The operation is convenient. By setting two hollow tubes, the industrial digital electronic detonator can be assembled, the success rate of exciting the group of seismic charge columns is improved, blind shots are reduced, and the success rate of operations is improved.

[0016] 2. The assembly effect is improved by setting the wing cap body. When the seismic source charge column is assembled into the blasting hole, the installed wing body is squeezed and positioned with the blasting hole, so that the seismic source charge column group is always located in the center of the blasting hole under vertical conditions, reducing the diameter requirement when opening the blasting hole, thereby reducing the difficulty of opening the blasting hole in disguise, improving the applicability of the assembly, and achieving a good assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a cross-sectional view of the overall structure of the double-hole anti-floating cap.

[0018] Figure 2 The utility model is a schematic diagram of the double-hole anti-floating cap body structure of the wing cap.

[0019] Figure 3 The utility model provides a schematic diagram of the double-tube inner sleeve structure of the double-hole anti-floating cap.

[0020] Figure 4 The utility model is a schematic diagram of the double-column protective cover structure of the double-hole anti-floating cap.

[0021] In the figure: 1. Wing cap body; 1-1. Wing body; 1-2. Radial hole; 1-3. Cylindrical external thread; 1-4. Inner boss; 2. Double-tube inner sleeve; 2-1. Lead notch; 2-2. External convex clamping platform; 2-3. Hollow tube; 3. Double-column protective cover; 3-1. Cylindrical boss; 3-2. Limiting platform; 3-3. Reinforcing ribs. DETAILED DESCRIPTION

[0022] Reference Figure 1-4 The double-hole anti-floating cap comprises a wing-tilted cap body 1, a double-tube inner sleeve 2 is mounted inside the wing-tilted cap body 1, and a double-column protective cover 3 is mounted on the top of the double-tube inner sleeve 2 and inside the wing-tilted cap body 1;

[0023] A plurality of wing bodies 1-1 are fixed on the top of the wing cap body 1, radial holes 1-2 are symmetrically provided on the side wall surface of the wing cap body 1, and an inner boss 1-4 is provided inside the wing body 1-1. When the source charge column is placed into the blasting hole, if the diameter of the blasting hole is too large, the wing body 1-1 can be used to limit the position of the entire group of source charge columns to the center of the blasting hole, and the installation depth of the source charge column can be adjusted by the pressure between the wing body 1-1 and the blasting hole. The wing body 1-1 can also conveniently drive the wing cap body 1 to rotate as a whole, so as to facilitate the adjustment of the position between the wing body 1-1 and the source charge column.

[0024] A hollow tube 2-3 is symmetrically fixed inside the double-tube inner sleeve 2, a lead notch 2-1 is opened at the top of the hollow tube 2-3 and above the double-tube inner sleeve 2, and a plurality of external convex clamping platforms 2-2 are fixed on the outer surface of the side wall of the double-tube inner sleeve 2;

[0025] A limiting platform 3-2 is symmetrically fixed in the middle of the lower surface of the double-column protective cover 3, a cylindrical boss 3-1 is fixed to the lower surface of the limiting platform 3-2, and a reinforcing rib 3-3 is fixed to the upper surface of the double-column protective cover 3.

[0026] The double-tube inner sleeve 2 is inserted from the top of the wing cap body 1, and the outer convex clamping platform 2-2 extends to the bottom of the inner convex platform 1-4, and the outer convex clamping platform 2-2 is clamped with the inner convex platform 1-4.

[0027] The outer surface of the double-tube inner sleeve 2 is provided with a slot spaced apart from the outer convex clamping platform 2 - 2 . By providing the slot, the portion provided with the outer convex clamping platform 2 - 2 can be slightly deformed, so that it is convenient to be inserted into the wing cap body 1 .

[0028] The cylindrical boss 3-1 is mounted in one-to-one correspondence with the top of the hollow tube 2-3. The double-column protective cover 3 is assembled to close the top of the hollow tube 2-3 to limit the movement of the detonator body, thereby protecting the detonator body and preventing it from detaching when placed in the blasting hole. By limiting the position of the detonator body, safety accidents can also be prevented.

[0029] The detonator body is placed inside the hollow tube 2-3, and the lead of the detonator body is led out from the lead notch 2-1 and the radial hole 1-2 in sequence to the outside of the wing cap body 1.

[0030] A cylindrical external thread 1-3 is provided on the surface of the wing-lifting cap body 1 and below the radial hole 1-2. The cylindrical external thread 1-3 is used to connect with the seismic source charge column.

[0031] When the device is used, the double-tube inner sleeve 2 is pressed into the inner circle of the winged cap body 1. Since the cylindrical body is provided with slots arranged equally along the axial direction, the outer convex clamping platform 2-2 is contracted inwardly by the external force. After the double-tube inner sleeve 2 is clamped in place, the outer convex clamping platform 2-2 is clamped on the inner convex platform 1-4 in the hole under the action of the plastic elasticity. At this time, the double-tube inner sleeve 2 cannot be disengaged from the winged cap body 1 and can be rotated;

[0032] When in use, the double-hole anti-floating cap is screwed on the last section of the series-connected seismic charge column product until it is tightened. At this time, if the two hollow tubes 2-3 on the double-tube inner sleeve 2 of the double-hole anti-floating cap are not coaxial with the two hole holes of the seismic charge column product, the double-tube inner sleeve 2 can be rotated to adjust until they are coaxial, and then two seismic exploration electronic detonators are respectively inserted into the hollow tubes 2-3. After being inserted in place, the seismic exploration electronic detonator leg wires are respectively led out from the lead wire notch 2-1 of the double-tube inner sleeve 2, and then respectively passed through the radial holes 1-2 on both sides of the wing cap body 1;

[0033] Align the two cylindrical bosses 3-1 of the double-column protective cover 3 with the hollow tube 2-3 of the double-tube inner sleeve 2 and press them into place;

[0034] After the seismic source charge column products wrapped with the leg wires of the seismic exploration electronic detonators are tied up, the lowering operation of the seismic source charge column products is carried out by pulling the leg wires.

Claims

1. Double-hole anti-floating cap, characterized by: It comprises a wing-tilted cap body, the interior of the wing-tilted cap body is sleeved with a double-tube inner sleeve, and the top of the double-tube inner sleeve and located inside the wing-tilted cap body is sleeved with a double-column protective cover; A plurality of wing bodies are fixed on the top of the wing cap body, radial holes are symmetrically opened on the side wall surface of the wing cap body, and an inner boss is opened inside the wing body; A hollow tube is symmetrically fixed through the inside of the double-tube inner sleeve, a lead-in notch is provided at the top of the hollow tube and above the double-tube inner sleeve, and a plurality of external convex clamping platforms are fixed on the outer surface of the side wall of the double-tube inner sleeve; A limiting platform is symmetrically fixed to the middle of the lower surface of the double-column protective cover, a cylindrical boss is fixed to the lower surface of the limiting platform, and a reinforcing rib is fixed to the upper surface of the double-column protective cover.

2. The double-hole anti-floating cap according to claim 1 is characterized in that: The double-tube inner sleeve is inserted from the upper part of the wing-tilted cap body, and the outer convex clamping platform extends to the lower part of the inner convex platform, and the outer convex clamping platform is clamped with the inner convex platform.

3. The double-hole anti-floating cap according to claim 1 is characterized in that: The outer surface of the double-tube inner sleeve is provided with a slot spaced apart from the outer convex clamping platform.

4. The double-hole anti-floating cap according to claim 1 is characterized in that: The cylindrical bosses are mounted in one-to-one correspondence with the tops of the hollow tubes.

5. The double-hole anti-floating cap according to claim 1 is characterized in that: The detonator body is respectively placed inside the hollow tube, and the lead wire of the detonator body is sequentially led out from the lead wire notch and the radial hole to the outside of the wing cap body.

6. The double-hole anti-floating cap according to claim 1 is characterized in that: A cylindrical external thread is provided on the surface of the wing-lifting cap body and below the radial hole.

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