Extra-deep well complex stratum efficient coring drilling equipment and drilling method thereof
By introducing a positioning component consisting of a liftable movable plate and a guide slide plate into the drilling rig, the instability problem caused by vibration in complex strata was solved, achieving stable and efficient drilling results.
Patent Information
- Application Number
- CN202511414887.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-01-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing drilling equipment suffers from instability due to vibration in complex formations in ultra-deep wells, leading to deviations in the drilling trajectory and safety hazards. It is difficult to improve stability without sacrificing convenience.
A positioning base and positioning components were designed, including a liftable movable plate and a guide slide plate. By increasing the ground contact area and limiting the movement, the stability of the device is improved. The combination of guide wheels and guide grooves enables rapid movement and stable positioning.
It improves the stability and convenience of drilling equipment in complex formations, reduces borehole deviation and safety risks, and increases core recovery rate and safety.
Smart Images
Figure CN121363372A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of drilling technology, in particular to a high-efficiency coring drilling device for special deep well complex strata and a drilling method thereof. BACKGROUND
[0002] In the fields of engineering geological survey and mineral resources exploration, drilling and coring technology is the most direct and reliable method to obtain deep underground geological information. At present, the widely used drilling device for engineering survey usually prioritizes the convenience of movement and the adaptability of the site in its design. Therefore, most of the devices are equipped with fixed universal guide wheels or skid mechanisms at the bottom of the base or mast. This design enables the device to be quickly and labor-savingly towed or pushed to the predetermined operation point, greatly improving the efficiency of the preliminary deployment.
[0003] However, this design focusing on convenient movement exposes a significant and fatal defect in the face of high-strength drilling operations in special deep wells and complex strata (such as hard, broken, and heterogeneous strata). Specifically, when the drill bit performs high-frequency impact or rotary cutting in complex strata, the strata will exert a large and directionally variable reaction force. This force is transmitted through the drill pipe to the drill rig head, causing the entire drilling device to vibrate and shake violently.
[0004] At this time, the fixed guide wheels at the bottom of the device, which are originally designed for convenient movement, become a significant destabilizing factor. Under the continuous action of strong vibration, the static friction between the device and the ground is easily broken, causing the guide wheels to roll or slide unexpectedly and intermittently. This small displacement will accumulate over time, causing the overall position of the drilling device to shift. The consequences are serious: it may cause the drill (such as the drill pipe and drill bit) to twist or jam in the hole, significantly increasing the operation time and economic cost, and posing a serious safety hazard.
[0005] Therefore, how to fundamentally solve the "parking" stability problem of existing drilling devices during high-efficiency and high-strength operations without sacrificing the convenience of equipment movement has become a technical bottleneck that needs to be broken through in the industry. Developing a high-efficiency coring drilling device for special deep well complex strata that can be flexibly moved and "firmly stationary" under the action of strata reaction force and the corresponding drilling method has extremely important engineering practical value. SUMMARY
[0006] The present application aims to provide a high-efficiency coring drilling device for special deep well complex strata and a drilling method thereof to solve the problems raised in the background.
[0007] To achieve the above object, the present application provides the following technical scheme: a special deep well complex stratum efficient coring drilling device and a drilling method thereof, comprising a positioning base, a hoist is installed on the positioning base, a controller is installed on the hoist, a drilling head is installed at the bottom end of the controller, receiving grooves are formed on both sides of the bottom end of the positioning base, two groups of movable plates are arranged in the two groups of receiving grooves, a plurality of guide wheels are installed at the bottom of the two groups of movable plates, pull handles are installed at the top ends of the two groups of movable plates, the two groups of pull handles penetrate the inside of the receiving grooves, and positioning assemblies are arranged on both sides of the top end of the positioning base.
[0008] As a further preferred aspect of the present technical solution, the positioning assembly comprises a sleeve, a guide sliding groove, a guide sliding plate, an extension rod, a connecting bracket and a handle, the top end of the positioning base is fixed with a sleeve on both sides, a guide sliding groove is formed in the sleeve on both sides, a guide sliding plate is placed in the guide sliding groove on both sides, two groups of extension rods are fixed to the outer wall of the opposite end of the guide sliding plate on both sides, and a handle is connected to the connecting bracket at the opposite end, two groups of extension rods are formed on the upper end of the pull handle, and the extension rods penetrate the inside of the limiting hole on the pull handle.
[0009] As a further preferred aspect of the present technical solution, a friction washer is glued to the outer wall of the movable plate.
[0010] As a further preferred aspect of the present technical solution, the outer wall of the guide sliding plate is fully matched with the inner wall of the guide sliding groove, and the guide sliding plate and the guide sliding groove are in sliding connection.
[0011] As a further preferred aspect of the present technical solution, the opposite end of the pull handle away from the sleeve is provided with an auxiliary rod, the bottom end of the auxiliary rod is fixed to the top end of the positioning base, two groups of auxiliary holes are formed on the auxiliary rod, and the end of the extension rod can be embedded in the auxiliary hole on the auxiliary rod.
[0012] As a further preferred aspect of the present technical solution, a return spring is wound on the outer wall of the connecting bracket, and the guide sliding plate and the inner wall of the guide sliding groove are elastically connected through the return spring.
[0013] As a further preferred aspect of the present technical solution, the handle is spherical, and the outer wall of the handle is ground.
[0014] The present application provides a special deep well complex stratum efficient coring drilling device and a drilling method thereof, which has the following beneficial effects:
[0015] 1. The present application is through the bottom of the positioning base is provided with a receiving groove, and the receiving groove is installed with a liftable movable plate, the movable plate can drive the guide wheel to be wholly received in the receiving groove, the bottom of the positioning base is in contact with the ground, the contact area of the positioning base and the ground is increased, the stability of the device during use is improved, and the positioning assembly arranged at the top of the positioning base is matched, the positioning assembly can form a movable limiting action on the pull handle, the movable plate can drive the guide wheel to protrude from the receiving groove, so that the device can quickly move in position under the action of the guide wheel, and the convenience of the device during use is improved.
[0016] 2. The present application is through the top of the positioning base is provided with two groups of sleeves, and the guide slide plate is arranged in the sleeve, the guide slide plate can drive the two groups of extension rods outside to quickly insert or leave the limiting hole on the pull handle, so that the extension rod can quickly form or release the movable limiting action on the pull handle, prevent the pull handle from accidentally moving during the movement of the device, and further improve the stability of the device during use. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a schematic view of the three-dimensional structure of the present application;
[0018] Figure 2 is a schematic view of the movable state structure of the present application;
[0019] Figure 3 is a schematic view of the partial cross-sectional structure of the present application;
[0020] Figure 4 is a schematic view of the Figure 2 enlarged structure of A of the present application;
[0021] Figure 5 is a schematic view of the Figure 3 enlarged structure of B of the present application.
[0022] In the figure: 1, positioning base; 2, elevator; 3, controller; 4, drilling head; 5, receiving groove; 6, movable plate; 7, guide wheel; 8, pull handle; 9, sleeve; 10, guide slide; 11, guide slide plate; 12, extension rod; 13, connecting bracket; 14, handle; 15, limiting hole; 16, auxiliary rod; 17, auxiliary hole; 18, return spring. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.
[0024] The present application provides a technical solution: as Figures 1 to 5As shown, in this embodiment, a kind of special deep well complex formation efficient coring drilling equipment and its drilling method, including positioning base 1, positioning base 1 is installed with elevator 2, elevator 2 is installed with controller 3, controller 3 bottom end is installed with drill head 4, positioning base 1 bottom end both sides are provided with receiving groove 5, two groups of receiving groove 5 are provided with movable plate 6, the bottom of two groups of movable plate 6 is installed with multiple groups of guide wheels 7, and the top of two groups of movable plate 6 is installed with pull handle 8, two groups of pull handle 8 are all through in the inside of receiving groove 5, positioning base 1 top both sides are provided with positioning assembly, and the moving position of pull handle 8 can be limited by positioning assembly.
[0025] By being provided with receiving groove 5 in the bottom of positioning base 1, and being provided with liftable movable plate 6 in receiving groove 5, movable plate 6 can drive guide wheel 7 to be entirely received in receiving groove 5, the bottom of positioning base 1 is contacted with ground, the contact area of positioning base 1 with ground is increased, the stability of the whole device during use is improved, and the positioning assembly arranged at the top of positioning base 1 is further provided, so that the positioning assembly can form movable limiting action on pull handle 8, movable plate 6 can drive guide wheel 7 to be explored from receiving groove 5, so that the device can be quickly moved in position under the action of guide wheel 7, and the convenience of the device during use is improved.
[0026] In other embodiments, the positioning assembly includes sleeve 9, guide sliding groove 10, guide sliding plate 11, extension rod 12, connecting bracket 13 and handle 14, sleeve 9 is fixed on the top of positioning base 1, guide sliding groove 10 is formed in sleeve 9, guide sliding plate 11 is placed in guide sliding groove 10, two groups of extension rods 12 are fixed on the opposite outer wall of two groups of guide sliding plates 11, handle 14 is connected to the opposite end through connecting bracket 13, extension rod 12 is arranged on the upper end of pull handle 8, and extension rod 12 penetrates through limiting hole 15 in pull handle 8.
[0027] By being provided with two groups of sleeves 9 on the top of positioning base 1, and being provided with transversely movable guide sliding plate 11 in sleeve 9, guide sliding plate 11 can drive the two groups of extension rods 12 outside it to be quickly inserted into or separated from limiting hole 15 in pull handle 8, so that extension rod 12 can quickly form or release movable limiting action on pull handle 8, to prevent pull handle 8 from being accidentally displaced when the device moves, and further improve the stability of the device during use.
[0028] In other embodiments, friction pad is glued to the outer wall of movable plate 6.
[0029] Through the design, the friction between movable plate 6 and receiving groove 5 in the bottom of positioning base 1 is increased, to prevent movable plate 6 from being too quickly received in receiving groove 5, and to avoid the rapid impact of positioning base 1 with ground.
[0030] In other embodiments, the outer wall of the guide sliding plate 11 is in close contact with the inner wall of the guide sliding groove 10, and the guide sliding plate 11 is in sliding connection with the guide sliding groove 10.
[0031] Through the design, the guide sliding plate 11 can move smoothly along the guide sliding groove 10, and the guide sliding plate 11 can drive the extension inserting rod 12 to move horizontally stably, thereby improving the stability of the extension inserting rod 12 during horizontal movement.
[0032] In other embodiments, the two groups of pull handles 8 are provided with auxiliary rods 16 away from one end of the sleeve 9, and the bottom ends of the two groups of auxiliary rods 16 are fixed to the top end of the positioning base 1.
[0033] Through the design, when the extension inserting rod 12 can penetrate through the limiting hole 15 on the pull handle 8, the end of the extension inserting rod 12 can be inserted into the auxiliary hole 17 on the auxiliary rod 16, so that the auxiliary rod 16 supports the end of the extension inserting rod 12, and the two ends of the extension inserting rod 12 are uniformly stressed, thereby preventing the extension inserting rod 12 from being deformed due to excessive unilateral stress.
[0034] In other embodiments, the outer wall of the two groups of connecting brackets 13 is wound with a reset spring 18, and the guide sliding plate 11 is elastically connected with the inner wall of the guide sliding groove 10 through the reset spring 18.
[0035] Through the design, the two groups of reset springs 18 can exert a continuous opposite force on the two groups of guide sliding plates 11, so that the guide sliding plate 11 can drive the extension inserting rod 12 to be stably inserted into the limiting hole 15 on the pull handle 8, thereby preventing the extension inserting rod 12 from accidentally leaving the inside of the limiting hole 15 due to vibration during movement of the device.
[0036] In other embodiments, the handle 14 is spherical, and the outer wall of the handle 14 is ground.
[0037] Through the design, the friction between the handle 14 and the hand is increased, and the handle 14 is convenient to grip and use.
[0038] The application provides a high-efficiency coring drilling device for a very deep well complex stratum and a drilling method thereof, and the specific working principle is as follows:
[0039] When the device is used, first push the positioning base 1, make the positioning base 1 displace under the action of the guide wheel 7, when the positioning base 1 moves to the appropriate position, pull one end of the handle 14 to the transverse direction, make the guide sliding plate 11 drive the extension inserting rod 12 slide along the guide sliding slot 10 in the sleeve 9, when the extension inserting rod 12 completely leaves the limiting hole 15 on the pull handle 8, make the extension inserting rod 12 cancel the movable limiting action on the limiting hole 15, make the positioning base 1 move downward along the outside of the movable plate 6 under the action of its gravity, make the movable plate 6 drive the guide wheel 7 completely enter the storage slot 5, then repeat the above operation, pull the handle 14 on the other end, make the bottom end of the positioning base 1 completely separate from the ground, then start the elevator 2 and the controller 3, make the drilling head 4 drill, thus the operation is finished.
[0040] The electric elements in this article are all connected with the main controller and 220V mains, and the main controller can be the conventional known device such as computer.
[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A kind of superdeep well complex formation high-efficiency coring drilling equipment and its drilling method, including positioning base (1), the positioning base (1) is installed with elevator (2), the elevator (2) is installed with controller (3), the bottom end of the controller (3) is installed with drilling head (4), it is characterized by: Both sides of the bottom end of the positioning base (1) are provided with receiving grooves (5), both groups of the receiving grooves (5) are provided with movable plates (6), the bottom of the two groups of movable plates (6) is provided with a plurality of guide wheels (7), and the top of the two groups of movable plates (6) is provided with pull handles (8), both groups of the pull handles (8) penetrate into the receiving grooves (5), and both sides of the top of the positioning base (1) is provided with a positioning assembly.
2. The equipment and method according to claim 1, characterized in that: The positioning assembly comprises a sleeve (9), a guide sliding groove (10), a guide sliding plate (11), an extension inserting rod (12), a connecting support (13) and a handle (14), both sides of the top of the positioning base (1) is fixed with a sleeve (9), both groups of the sleeve (9) are provided with a guide sliding groove (10), both groups of the guide sliding groove (10) are placed with a guide sliding plate (11), both groups of the guide sliding plate (11) are fixed with two groups of extension inserting rods (12) on the opposite outer walls, and the opposite ends are connected with handles (14) through connecting supports (13), both ends of the pull handle (8) are provided with two groups of extension inserting rods (12), and the extension inserting rods (12) penetrate into the limiting holes (15) on the pull handle (8).
3. The equipment and method of claim 1, wherein: The outer wall of the movable plate (6) is glued with a friction gasket.
4. The equipment and method according to claim 2, characterized in that: The outer wall of the guide sliding plate (11) is fully matched with the inner wall of the guide sliding groove (10), and the guide sliding plate (11) and the guide sliding groove (10) are in sliding connection.
5. The equipment and method of claim 2, wherein: Both groups of the pull handle (8) are provided with auxiliary rods (16) away from the sleeve (9), both groups of the auxiliary rods (16) are fixed at the top of the positioning base (1), both groups of the auxiliary rods (16) are provided with two groups of auxiliary holes (17), and the end of the extension inserting rod (12) can be embedded into the auxiliary hole (17) on the auxiliary rod (16).
6. The equipment and method of claim 2, wherein: Both groups of the connecting supports (13) are wound with return springs (18), and the guide sliding plate (11) is elastically connected with the inner wall of the guide sliding groove (10) through the return spring (18).
7. The equipment and method of claim 2, wherein: The handle (14) is spherical, and the outer wall of the handle (14) is ground.
8. The drilling method of the device according to claims 1-7, characterized in that: Step one: first push the positioning base (1), let the positioning base (1) displace under the action of the guide wheel (7), when the positioning base (1) moves to the appropriate position, pull one end of the handle (14) to the transverse direction, let the guide sliding plate (11) drive the extension inserting rod (12) to slide transversely along the guide sliding groove (10) in the sleeve (9); Step two: when the extension inserting rod (12) completely leaves the limiting hole (15) on the pull handle (8), let the extension inserting rod (12) release the movable limiting action on the limiting hole (15), so that the positioning base (1) moves downward along the outside of the movable plate (6) under the action of its own gravity; Step three: let the activity board (6) with guide wheel (7) completely into the storage slot (5), and then repeat the above operation, the other end of the handle (14) for pulling operation, let the positioning base (1) bottom end and the ground fully contact, and then start the elevator (2) and the controller (3), let the drilling head (4) to carry on the drilling, thus the operation ends.