Thin rock recognition device for oil field exploration

Abstract

The utility model belongs to the technical field of oil exploration, and particularly relates to a thin rock recognition device for oil field exploration, which comprises a drill bit, four L-shaped tooth blocks are fixed on the surface of the drill bit, four sinking grooves are formed in the outer wall of the drill bit, two limiting blocks are fixed in each sinking groove, an L-shaped plate is placed between every two adjacent limiting blocks in a limiting manner, and the L-shaped tooth blocks are fixed on the L-shaped tooth blocks. And storages are fixed on one side walls of the L-shaped plates. By arranging the drill bit, the L-shaped tooth block, the sinking groove, the limiting block, the L-shaped plate, the storage device, the inserting rail, the baffle, the fixing groove and the fixing assembly, in the process of using the thin-layer rock recognition device for oil field exploration, under the cooperation of the limiting block and the cover plate, the L-shaped plate can be clamped, limited and fixed, and due to the fact that the storage device is fixed to the L-shaped plate, the storage device is not prone to falling off. And after a worker operates the fixing assembly to release limiting of the four baffles in the later period, the L-shaped plate can be conveniently taken out from the interior of the sinking groove to replace the storage, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum exploration, in particular to a thin-layer rock identification device for oil field exploration. Background Art

[0002] Petroleum exploration refers to the use of various exploration methods to understand the underground geological conditions in order to find and identify oil and gas resources. Drilling logging has always been widely used in geological field logging work such as lithology interpretation of drilled formations, stratification naming of cuttings and stratigraphic comparison due to its sensitivity to the drillability of formation rocks. With the application of PDC drill bits and the influence of a large number of thin interbeds of lithology in lacustrine sedimentary basins where most domestic oil fields are located, the sensitivity and practicality of traditional drilling curves have decreased. In recent years, with the need for geological research work such as tapping the potential of thin oil layers in old oil fields and evaluating the sweet spots of thin sand layers of unconventional resources such as shale oil, the accuracy of traditional logging and well logging recognition is often difficult to achieve.

[0003] According to the existing authorization publication number CN217501640U, a thin-layer rock identification device for oil field exploration is proposed, which belongs to the field of petroleum exploration and includes a drill bit, a connecting seat and a transmission rod. The top of the drill bit is provided with a connecting seat, and the upper surface of the connecting seat is fixedly connected to the transmission rod. The outer wall of the drill bit is equidistantly provided with a plurality of groups of L-shaped fixing frames, and the outer wall surface of the L-shaped fixing frame is equidistantly provided with mounting holes, and the inner cavity of the mounting hole is movably provided with a No. 1 cutting tooth, and one side of the outer wall surface of the drill bit is provided with a mounting groove, and the bottom of the inner cavity of the mounting groove is provided with a mounting plate, and one end of the upper surface of the mounting plate is provided with a memory, and one side of the memory is provided with a data transmission device. Output interface; Based on the original logging technology during drilling, this new type of device realizes the most positive correlation and detailed record of the brittleness information of the formation rock through the improvement of data interval, accuracy and output, which will be helpful for the exploration of a large number of thin oil layers, shale oil and other unconventional resources in various lacustrine sedimentary basins. However, during the use of this thin-layer rock identification device for oil field exploration, the memory is installed inside the installation groove, and the outside of the installation groove is protected by a fixed cover plate. When the memory needs to be replaced later, the operation is inconvenient. Therefore, we propose a thin-layer rock identification device for oil field exploration to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a thin-layer rock identification device for oil field exploration, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A thin-layer rock identification device for oilfield exploration comprises a drill bit, four L-shaped tooth blocks are fixed on the surface of the drill bit, four recesses are provided on the outer wall of the drill bit, two limit blocks are fixed inside the recesses, an L-shaped plate is placed between two adjacent limit blocks for limiting, a storage device is fixed to one side wall of the L-shaped plate, a plug rail fixed to the outer wall of the drill bit is provided on one side of the recess, baffles are plugged into the slots provided in the plug rails, the L-shaped plates are respectively fitted with corresponding baffles, fixing grooves are provided on the tops of the baffles, and a fixing component for engaging the fixing grooves is provided on the top of the drill bit.

[0009] Furthermore, the fixing assembly includes two support blocks fixed on the top of the drill bit, two support seats are placed on the top of the drill bit, two limiting grooves are provided on the top of the support seats, and blocks are clamped inside the two adjacent limiting grooves. The two clamping blocks are fixedly connected to the corresponding support blocks by bolts, and two fixing blocks adapted to the fixing grooves are fixed on the bottom of the support seats, and the fixing blocks are respectively inserted into the corresponding fixing grooves.

[0010] Furthermore, two guide blocks are fixed to the outer wall of the drill bit, and guide columns matched with the guide blocks are fixed to the bottom of the support seat.

[0011] Furthermore, the top of the support seat is provided with an arc-shaped clearance groove for making way for the drill bit.

[0012] Furthermore, U-shaped sealing pads are fixed on the surfaces of the baffles, and the surfaces of the U-shaped sealing pads are tightly fitted with the corresponding insertion rails.

[0013] Furthermore, L-shaped heat conducting plates are fixed inside the L-shaped openings equidistantly opened on both sides of the four insertion rails.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a thin-layer rock identification device for oil field exploration, which has the following beneficial effects:

[0016] The utility model provides a drill bit, an L-shaped tooth block, a sink groove, a limit block, an L-shaped plate, a storage device, a rail, a baffle plate, a fixing groove and a fixing component. During the use of the thin-layer rock identification device for oil field exploration, the L-shaped plate can be clamped and limited with the cooperation of the limit block and the cover plate. Because the storage device is fixed on the L-shaped plate, after the staff operates the fixing component to release the limit of the four baffles, the L-shaped plate can be conveniently taken out from the sink groove to replace the storage device, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the L-shaped plate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the baffle structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the support seat of the utility model;

[0022] Figure 6 It is a schematic diagram of the rail insertion structure of the utility model.

[0023] In the figure: 1. drill bit; 2. L-shaped tooth block; 3. sink groove; 4. limit block; 5. L-shaped plate; 6. storage device; 7. rail; 8. baffle; 9. fixing groove; 10. fixing assembly; 1001. support block; 1002. support seat; 1003. limit groove; 1004. clamping block; 1005. fixing block; 11. guide block; 12. guide column; 13. arc-shaped clearance groove; 14. U-shaped sealing gasket; 15. L-shaped heat conduction plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, a thin-layer rock identification device for oilfield exploration proposed in one embodiment of the utility model comprises a drill bit 1, four L-shaped tooth blocks 2 are fixed on the surface of the drill bit 1, four sinking grooves 3 are opened on the outer wall of the drill bit 1, two limit blocks 4 are fixed inside the sinking grooves 3, an L-shaped plate 5 is placed between two adjacent limit blocks 4, a storage 6 is fixed on one side wall of the L-shaped plate 5, one side of the sinking groove 3 is provided with a plug rail 7 fixed to the outer wall of the drill bit 1, L-shaped heat conducting plates 15 are fixed inside the L-shaped openings equidistantly opened on both sides of the four plug rails 7, so that the heat inside the sinking groove 3 is conveniently conducted to the surface of the L-shaped heat conducting plate 15 and discharged to the outside, so as to realize the heat dissipation operation of the storage 6, and the slots opened by the plug rails 7 are plugged with blocking plates The plate 8 and the L-shaped plate 5 are respectively fitted with the corresponding baffle plates 8. The tops of the baffle plates 8 are provided with fixing grooves 9. The top of the drill bit 1 is provided with a fixing component 10 for engaging the fixing grooves 9. When using this thin-layer rock identification device for oil field exploration, the restriction on the four baffle plates 8 can be released by operating the fixing component 10. Then the staff can separate the baffle plate 8 at the storage device 6 to be replaced from the insertion rail 7. After the baffle plate 8 is taken out, the staff can operate the L-shaped plate 5 to slide outward inside the sink 3, and then the storage device 6 can be taken out. During installation, the L-shaped plate 5 together with the storage device 6 can be placed inside the sink 3, and then the L-shaped plate 5 can be limited after the baffle plate 8 is tightly inserted. Finally, the fixing component 10 is operated to limit and fix the baffle plate 8.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the fixing assembly 10 includes two support blocks 1001 fixed on the top of the drill bit 1, and two support seats 1002 are placed on the top of the drill bit 1. The tops of the support seats 1002 are each provided with an arc-shaped making way groove 13 for making way for the drill bit 1, which can play a making way role, so that when the support seat 1002 is clamped on the top of the drill bit 1, it will not be interfered with. The top of the support seat 1002 is each provided with two limiting grooves 1003, and the insides of the two adjacent limiting grooves 1003 are clamped with a clamping block 1004, and the two clamping blocks 1004 are respectively connected to the corresponding support blocks 1001 by bolts. Fixed connection, two fixing blocks 1005 adapted to the fixing grooves 9 are fixed at the bottom of the support seat 1002, and the fixing blocks 1005 are respectively inserted into the corresponding fixing grooves 9. When the restriction on the baffle 8 needs to be released, the bolts can be loosened to separate the clamping block 1004 from the support block 1001. When the clamping block 1004 is removed, the restriction on the support seat 1002 will be released, and then the support seat 1002 can be removed. After the support seat 1002 is removed, the fixing block 1005 will be driven to slide out from the inside of the fixing groove 9. At this time, after the restriction on the baffle 8 is released, the baffle 8 can be separated from the insertion rail 7.

[0028] like Figure 3 and Figure 5 As shown, in some embodiments, two guide blocks 11 are fixed to the outer wall of the drill bit 1, and the bottom of the support seat 1002 is fixed with a guide column 12 adapted to the guide block 11. When the fixing block 1005 is inserted into the inside of the fixing groove 9, it can play a role of pre-guiding, and can further play a role of limiting guidance for the support seat 1002.

[0029] like Figure 4 As shown, in some embodiments, a U-shaped sealing gasket 14 is fixed on the surface of the baffle 8, and the surfaces of the U-shaped sealing gasket 14 are tightly fitted with the corresponding insertion rails 7, respectively, so as to ensure the tightness after the baffle 8 and the insertion rail 7 are plugged in, thereby better protecting the identification memory 6 inside the sink 3.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A thin-layer rock identification device for oilfield exploration, comprising a drill bit (1), characterized in that: Four L-shaped tooth blocks (2) are fixed on the surface of the drill bit (1); four recessed grooves (3) are provided on the outer wall of the drill bit (1); two limit blocks (4) are fixed inside the recessed grooves (3); an L-shaped plate (5) is placed between two adjacent limit blocks (4); a storage device (6) is fixed on one side wall of the L-shaped plate (5); a plug rail (7) fixed to the outer wall of the drill bit (1) is provided on one side of the recessed groove (3); a baffle (8) is inserted into the slot provided in the plug rail (7); the L-shaped plate (5) is respectively fitted with the corresponding baffle (8); a fixing groove (9) is provided on the top of the baffle (8); and a fixing component (10) for engaging the fixing groove (9) is provided on the top of the drill bit (1).

2. The thin-layer rock identification device for oilfield exploration according to claim 1 is characterized in that: The fixing assembly (10) comprises two support blocks (1001) fixed on the top of the drill bit (1), two support seats (1002) are placed on the top of the drill bit (1), two limiting grooves (1003) are provided on the top of the support seats (1002), and clamping blocks (1004) are clamped inside two adjacent limiting grooves (1003), and the two clamping blocks (1004) are respectively fixedly connected to the corresponding support blocks (1001) by bolts, and two fixing blocks (1005) adapted to the fixing grooves (9) are fixed on the bottom of the support seats (1002), and the fixing blocks (1005) are respectively inserted into the corresponding fixing grooves (9).

3. The thin-layer rock identification device for oilfield exploration according to claim 2 is characterized in that: Two guide blocks (11) are fixed on the outer wall of the drill bit (1), and guide columns (12) adapted to the guide blocks (11) are fixed on the bottom of the support seat (1002).

4. The thin-layer rock identification device for oilfield exploration according to claim 2 is characterized in that: The top of the support seat (1002) is provided with an arc-shaped clearance groove (13) for making way for the drill bit (1).

5. The thin-layer rock identification device for oilfield exploration according to claim 1 is characterized in that: A U-shaped sealing pad (14) is fixed to the surface of each baffle (8), and the surface of each U-shaped sealing pad (14) is tightly fitted to the corresponding insertion rail (7).

6. The thin-layer rock identification device for oilfield exploration according to claim 1 is characterized in that: L-shaped heat conducting plates (15) are fixed inside L-shaped openings equidistantly provided on both sides of the four insertion rails (7).

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