Water engineering investigation drilling machine device with horizontal and vertical compensation function

Abstract

The utility model discloses an overwater engineering investigation drilling machine device with a horizontal and vertical compensation function, which comprises a workboat, an investigation drilling machine is fixed on the workboat, the investigation drilling machine is connected with a drill rod through a hexagonal sleeve mechanism, the bottom of the drill rod is connected with a drill bit assembly, and the drill rod comprises a lower drill rod and a hexagonal driving drill rod. A horizontal and vertical compensation short section assembly is connected between the lower drill rod and the hexagonal driving drill rod; if the drilling machine displaces in the horizontal direction, the hexagonal driving drill rod rotates relative to the horizontal and vertical compensation short section assembly, horizontal motion compensation of the drilling machine is achieved, and drilling torque is transmitted through cooperation of a universal spherical hinge and a hollow spherical hinge in the horizontal and vertical compensation short section assembly; if the drilling machine displaces in the vertical direction, the hexagonal driving drill rod generates relative dislocation in the hexagonal sleeve mechanism of the drilling machine, vertical compensation of the drilling machine is achieved, and the heavy weight drill rod on the upper portion of the drill bit can guarantee that the drill rod is kept perpendicular in a hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of water engineering geological survey, and in particular relates to a water engineering survey drilling device with horizontal and vertical compensation functions. Background Art

[0002] With the development of China's marine engineering, the design and construction of marine geological engineering survey equipment has become increasingly important. Floating drilling platforms and water geological drilling ships cause horizontal and heave movements of the drill pipe column under the action of waves. The horizontal movement causes the flexible drill pipe to bend and deform, causing the center line of the drill bit to deviate from the axis of the wellbore, thereby generating a well inclination. The bending of the drill pipe aggravates the stress condition of the drill string itself and the wear of the drill pipe by the well wall, resulting in a significant reduction in the service life of the drill pipe; the heave movement is transmitted to the well through the drill pipe, and causes the drill string to reciprocate up and down, causing changes in the drilling pressure of the drill bit at the bottom of the hole. When the drilling pressure drops to a certain limit, the drill bit will be separated from the bottom of the well and cannot continue to drill, affecting the drilling efficiency and reducing the life of the drill tool. In addition, under severe sea conditions, the horizontal and vertical movements of floating platforms and water geological drilling ships will make it impossible to carry out drilling normally. Therefore, it is necessary to propose a water engineering survey drilling rig device with horizontal and vertical compensation functions to reduce the impact of the platform heave movement on the drill string and ensure the normal progress of geological survey drilling. Utility Model Content

[0003] The utility model provides an above-water engineering survey drilling rig device with horizontal and vertical compensation functions, which has the characteristics of low cost, easy operation, simple structure and reliable performance, and can realize horizontal and vertical compensation of the above-water engineering survey drilling rig.

[0004] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0005] The utility model provides an above-water engineering survey drilling device with horizontal and vertical compensation functions, comprising an operating vessel (13), on which a survey drilling rig (12) is fixed, the survey drilling rig (12) is connected to a drill rod (14) via a hexagonal sleeve mechanism (10), the drill rod (14) extends along a borehole wall (15) to below the seabed; a drill bit assembly is connected to the bottom of the drill rod (14); the drill rod (14) comprises a lower drill rod (1) and a hexagonal active drill rod (7);

[0006] A horizontal and vertical compensation short section assembly (11) is connected between the lower drill rod (1) and the hexagonal active drill rod (7), and the horizontal and vertical compensation short section assembly (11) comprises a lower joint (2), a universal ball joint (3), a first group of pins (4-1), a second group of pins (4-2), a hollow ball joint (5) and a flexible protective cover (6); the universal ball joint (3) is located outside the hollow ball joint (5), the lower joint (2) is located outside the universal ball joint (3), and the flexible protective cover (6) is located outside the lower joint (2);

[0007] The first group of pins (4-1) connects the universal ball joint (3) and the lower joint (2), and the second group of pins (4-2) connects the universal ball joint (3) and the hollow ball joint (5), and is used to drive the universal ball joint (3) and the hollow ball joint (5) to rotate, thereby realizing a drill rod horizontal compensation function;

[0008] The end of the hexagonal active drill rod (7) is connected to the hollow ball joint (5), and the flexible protective sleeve (6) is fixed on the outside of the hexagonal active drill rod (7) to seal and protect the joint between the hexagonal active drill rod (7) and the hollow ball joint (5); the lower drill rod (1) is connected to the lower joint (2) via a thread.

[0009] According to an optional embodiment of the utility model, the hexagonal sleeve mechanism (10) is a hexagonal sleeve with an inner hexagon, and the hexagonal active drill rod (7) is clamped in the hexagonal structure of the hexagonal sleeve.

[0010] According to an optional embodiment of the utility model, the drill bit assembly comprises a weighted drill rod (16) connected to the bottom of the drill rod (14) and a drill bit (17) connected to the bottom of the weighted drill rod (16).

[0011] Beneficial effects: The embodiment of the utility model provides a water engineering survey drilling device with horizontal and vertical compensation functions, including an operating ship, a survey drilling rig is fixed on the operating ship, the survey drilling rig is connected to a drill rod through a hexagonal sleeve mechanism, the drill rod extends along the borehole wall to below the seabed, a drill head assembly is connected to the bottom of the drill rod, the drill rod includes a lower drill rod and a hexagonal active drill rod, and a horizontal and vertical compensation short section assembly is connected between the lower drill rod and the hexagonal active drill rod. If the drilling rig is displaced in the horizontal direction, the hexagonal active drill rod rotates relative to the horizontal and vertical compensation short section assembly to achieve horizontal motion compensation of the drilling rig, and the drilling torque is transmitted through the cooperation of the universal ball joint and the hollow ball joint in the horizontal and vertical compensation short section assembly. If the drilling rig is displaced in the vertical direction, the hexagonal active drill rod produces relative displacement in the hexagonal sleeve mechanism of the drilling rig to achieve vertical compensation of the drilling rig, and the weighted drill rod on the upper part of the drill head can ensure that the drill rod remains vertical in the hole. Therefore, the horizontal and vertical compensation short section assembly does not require additional power drive, and the horizontal and vertical compensation of the drilling rig can be easily achieved directly through the mutual cooperation of the hexagonal active drill rod and the hollow ball joint, the mutual cooperation of the hexagonal active drill rod and the hexagonal sleeve mechanism, and the lower weighted drill rod. The equipment of the utility model is simple, reliable in performance, and easier to operate, and has broad application prospects in engineering construction such as offshore engineering geological surveys. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic structural diagram of an aquatic engineering survey drilling rig device with horizontal and vertical compensation functions provided in an embodiment of the present application.

[0014] Figure 2 and Figure 3 A schematic structural diagram of a horizontal and vertical compensation pup joint assembly of an above-water engineering survey drilling rig device with horizontal and vertical compensation functions provided in an embodiment of the present application.

[0015] Figure 4 A schematic diagram of the structure of a hexagonal sleeve mechanism of an aquatic engineering survey drilling rig with horizontal and vertical compensation functions provided in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0017] like Figure 1 As shown, the embodiment of the utility model provides a water engineering survey drilling device with horizontal and vertical compensation functions, including a work boat 13, and the work boat 13 floats on the sea level 9. A survey drilling rig 12 is fixed on the work boat 13, and the survey drilling rig 12 is connected to a drill rod 14 through a hexagonal sleeve mechanism 10, and the drill rod 14 extends to the bottom of the seabed along the borehole wall 15. A drill bit assembly is connected to the bottom of the drill rod 14, and the drill bit assembly includes a weighted drill rod 16 connected to the bottom of the drill rod 14 and a drill bit 17 connected to the bottom of the weighted drill rod 16. The weighted drill rod 16 ensures that the drill rod 14 remains vertical in the hole.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, the drill rod 14 includes a lower drill rod 1 and a hexagonal active drill rod 7. A horizontal and vertical compensation short section assembly 11 is connected between the lower drill rod 1 and the hexagonal active drill rod 7. The horizontal and vertical compensation short section assembly 11 includes a lower joint 2, a universal ball joint 3, a first group of pins 4-1, a second group of pins 4-2, a hollow ball joint 5 and a flexible protective cover 6; the universal ball joint 3 is located outside the hollow ball joint 5, the lower joint 2 is located outside the universal ball joint 3, and the flexible protective cover 6 is located outside the lower joint 2.

[0019] The first set of pins 4-1 connects the universal ball joint 3 and the lower joint 2, and the second set of pins 4-2 connects the universal ball joint 3 and the hollow ball joint 5, which are used to drive the universal ball joint 3 and the hollow ball joint 5 to rotate, so as to realize the horizontal compensation function of the drill pipe; the end of the hexagonal active drill pipe 7 is connected to the hollow ball joint 5, and the flexible protective sleeve 6 is fixed on the outside of the hexagonal active drill pipe 7, which is used to seal and protect the joint between the hexagonal active drill pipe 7 and the hollow ball joint 5 to prevent drilling fluid and cuttings from entering the ball joint. The lower drill pipe 1 is connected to the lower joint 2 through a thread, which is used to transmit drilling pressure and torque to the lower drill pipe 1 at the bottom of the well.

[0020] like Figure 4 As shown, the hexagonal sleeve mechanism 10 is a hexagonal sleeve with an inner hexagon, and the hexagonal active drill rod 7 is clamped in the hexagonal structure of the hexagonal sleeve to transmit the drilling pressure and torque of the drilling rig and realize the vertical compensation function of the drill rod.

[0021] The horizontal and vertical compensation sub assembly 11 in this embodiment does not require additional power drive, and passively realizes the horizontal and vertical compensation of the drilling rig. The hollow ball joint drives the universal ball joint to rotate to realize the horizontal compensation function. The relative displacement between the hexagonal active drill rod and the hexagonal sleeve of the drilling rig increases the drilling pressure of the drill rod to realize the vertical compensation function.

[0022] The working principle of the utility model is:

[0023] The entire water engineering survey drilling rig is based on Figure 1 When conducting offshore survey drilling, drill bit 17, weighted drill rod 16, drill rod 14, and hexagonal active drill rod 7 are sequentially connected from bottom to top. During drilling, the survey drilling rig drives the hexagonal active drill rod 7 to rotate through the hexagonal sleeve mechanism 10, and the drilling rig transmits torque to the lower drill rod 1 through the two sets of pins and the lower joint 2 on the horizontal and vertical compensation short section assembly.

[0024] If the drilling rig is displaced in the horizontal direction, the hexagonal active drill rod 7 rotates relative to the horizontal vertical compensation short section assembly to compensate for the horizontal movement of the drilling rig, and transmits the drilling torque through the cooperation of the universal ball joint 3 and the hollow ball joint 5.

[0025] If the drilling rig is displaced in the vertical direction, the hexagonal active drill rod 7 will produce relative displacement in the hexagonal sleeve mechanism 10 of the drilling rig to achieve vertical compensation for the drilling rig. The weighted drill rod 16 on the upper part of the drill head can ensure that the drill rod 14 remains vertical in the hole.

[0026] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A water engineering survey drilling rig device with horizontal and vertical compensation functions, characterized in that: The invention comprises an operating vessel (13), on which a survey drilling rig (12) is fixed, the survey drilling rig (12) is connected to a drill rod (14) via a hexagonal sleeve mechanism (10), the drill rod (14) extends along a borehole wall (15) to below the seabed, a drill bit assembly is connected to the bottom of the drill rod (14), and the drill rod (14) comprises a lower drill rod (1) and a hexagonal active drill rod (7); A horizontal and vertical compensation short section assembly (11) is connected between the lower drill rod (1) and the hexagonal active drill rod (7), and the horizontal and vertical compensation short section assembly (11) comprises a lower joint (2), a universal ball joint (3), a first group of pins (4-1), a second group of pins (4-2), a hollow ball joint (5) and a flexible protective cover (6); the universal ball joint (3) is located outside the hollow ball joint (5), the lower joint (2) is located outside the universal ball joint (3), and the flexible protective cover (6) is located outside the lower joint (2); The first group of pins (4-1) connects the universal ball joint (3) and the lower joint (2), and the second group of pins (4-2) connects the universal ball joint (3) and the hollow ball joint (5), and is used to drive the universal ball joint (3) and the hollow ball joint (5) to rotate, thereby realizing a drill rod horizontal compensation function; The end of the hexagonal active drill rod (7) is connected to the hollow ball joint (5), and the flexible protective sleeve (6) is fixed on the outside of the hexagonal active drill rod (7) to seal and protect the joint between the hexagonal active drill rod (7) and the hollow ball joint (5); the lower drill rod (1) is connected to the lower joint (2) via a thread.

2. The water engineering survey drilling rig device with horizontal and vertical compensation functions according to claim 1 is characterized in that: The hexagonal sleeve mechanism (10) is a hexagonal sleeve with a hexagonal inner side, and the hexagonal active drill rod (7) is clamped in the hexagonal structure of the hexagonal sleeve.

3. The water engineering survey drilling rig device with horizontal and vertical compensation functions according to claim 1 is characterized in that: The drill bit assembly comprises a weighted drill rod (16) connected to the bottom of the drill rod (14) and a drill bit (17) connected to the bottom of the weighted drill rod (16).

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