Novel hydraulic centralizer convenient to install

Abstract

The utility model discloses a novel hydraulic centralizer convenient to install, which belongs to the technical field of centralizing, and comprises an overground shaft and a positioning piece, the positioning piece comprises two groups of long positioning plates and two groups of short positioning plates, the center of the side surface of each long positioning plate is provided with a sliding chute, and sliding blocks are symmetrically arranged on two sides of the center of each sliding chute in a sliding manner. A threaded rod penetrates through the side face of the sliding block in a threaded mode, the two ends of the threaded rod rotationally penetrate through the two sides of the long positioning plate, the short positioning plate is fixed to the side face of the sliding block, a mounting frame is fixed to the bottom end of the short positioning plate, a hydraulic telescopic rod is arranged in the mounting frame, and a piston rod in the hydraulic telescopic rod movably penetrates through the short positioning plate to be connected with a lifting plate. A centering cylinder is mounted at the top end of the lifting plate, a positioning plate is fixed to the side face of the mounting frame, positioning holes are symmetrically formed in the side face of the positioning plate, and through the mode, adjustment and mounting can be conducted according to the size of a shaft on the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of centralizing, in particular to a novel hydraulic centralizer which is easy to install. Background Art

[0002] A casing centralizer is a device specifically used to ensure the stability of oil well casing. It is mainly divided into internal wellbore centralizers and external wellbore centralizers. The internal wellbore centralizer is a rigid and elastic centralizing structure installed on the outer surface of the casing to ensure that the lowered casing string is in the center of the wellbore. It is generally installed on the outside of the casing and is lowered into the wellbore together with the casing. The external wellbore centralizer is to ensure that the casing is in the center of the wellbore when it is lowered, and is generally installed on the outside of the above-ground part of the wellbore.

[0003] The existing wellbore outer centralizer is generally set at the upper center of the wellbore, and the synchronous installation equipment is set on the outside of the wellbore. It cannot be adaptively adjusted and installed for wellbores of different sizes, which is inconvenient to use.

[0004] Based on this, the utility model designs a new hydraulic centralizer which is easy to install to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a new hydraulic centralizer which is easy to install.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A new type of hydraulic centralizer that is easy to install includes an above-ground wellbore and a positioning piece, the positioning piece includes two groups of long positioning plates and two groups of short positioning plates, a slide groove is provided at the center of the side surface of the long positioning plate, and sliders are symmetrically slid on both sides of the center of the slide groove, a screw rod is threaded through the side surface of the slider, and both ends of the screw rod are rotated and penetrated through the two sides of the positioning long plate, the positioning short plate is fixed to the side surface of the slider, and a mounting frame is fixed to the bottom end of the positioning short plate, a hydraulic telescopic rod is provided in the mounting frame, and the piston rod inside the hydraulic telescopic rod movably penetrates the positioning short plate and is connected to a lifting plate, a straightening cylinder is installed on the top of the lifting plate, a positioning plate is fixed on the side surface of the mounting frame, and positioning holes are symmetrically provided on the side surface of the positioning plate.

[0008] Furthermore, the slide groove is set through both ends of the positioning long plate and a group of blocks are slidably provided at the ends of the slide groove. The blocks are threadedly fixed on the side of the positioning long plate, and the screw is rotated to pass through the block setting.

[0009] Furthermore, hidden grooves are opened in the centers of both ends of the positioning short plate, a screw barrel is fixed in the hidden groove, an inner rod is threadedly connected to the inner screw barrel, a connecting block is rotated at the end of the inner rod, and the connecting block is threadedly fixed to the side of the slider.

[0010] Furthermore, the length of the screw barrel is equal to the length of the hidden groove, and the length of the inner rod is slightly greater than the length of the screw barrel.

[0011] Furthermore, a connecting plate is threadedly fixed to the side surface of the straightening cylinder and the side surface of the lifting plate.

[0012] Furthermore, an adjusting member is provided on the side of the straightening cylinder, and the adjusting member includes a movable rod, a side plate, a transverse plate and an adjusting screw.

[0013] Furthermore, the movable rod is symmetrically movable and penetrates the side of the straightening cylinder, the side plate is fixed to the end of the movable rod, the cross plate is fixed to the other end of the movable rod, and the adjusting screw thread penetrates the cross plate.

[0014] Furthermore, the side panels and the horizontal panel are respectively threadedly fixed to the ends of the movable rods, the side surfaces of the side panels are provided with mounting grooves, one end of the horizontal panel is arranged beyond the vertical plane where the edge section of the straightening cylinder is located, and a horizontal rotating rod is arranged in the mounting groove for uniform rotation. Beneficial effects

[0015] 1. By setting the positioning long plate, positioning short plate, slide, slider and screw, the screw can be rotated according to the size of the ground wellbore. The screw and the slider are matched with each other to drive the screw to move in the slide, so that the two sets of positioning horizontal plates fit the side wall of the ground wellbore, and the positioning parts are adjusted and installed, which is convenient for the subsequent installation of the straightening cylinder.

[0016] 2. By setting the sliding groove and blocking block through the whole, it is convenient to connect the positioning horizontal plate and the positioning long plate, so that the two can be connected detachably, which is convenient for adjusting the installation according to the size of the ground wellbore; by setting the hidden groove, screw barrel and inner rod, the length of the positioning short plate can be adjusted by using the threaded fit of the inner rod and the screw barrel; by setting the movable rod, side plate, horizontal plate and adjusting screw, according to the size of the sleeve to be lowered, the adjusting screw is rotated to drive the two sets of horizontal plates to move, thereby moving the movable rod and adjusting the position of the side plate to facilitate the lowering of the external casing; by setting the installation groove and the horizontal rotating rod, when the external casing contacts the side plate, the horizontal rotating rod assists its downward movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0018] Figure 1This is a three-dimensional diagram of the main structure of a new hydraulic centralizer that is easy to install in the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the positioning long plate structure of a new hydraulic centralizer that is easy to install in the utility model;

[0020] Figure 3 This is a new type of hydraulic centralizer that is easy to install and has a positioning short plate structure. Figure 2 ;

[0021] Figure 4 This is a three-dimensional diagram of the centralizing cylinder structure of a new hydraulic centralizer that is easy to install.

[0022] The numbers in the figure represent:

[0023] 1. Ground shaft; 2. Long positioning plate; 3. Short positioning plate; 4. Slide; 5. Slider; 6. Screw; 7. Mounting frame; 8. Hydraulic telescopic rod; 9. Lifting plate; 10. Straightening cylinder; 11. Positioning plate; 12. Positioning hole; 13. Block; 14. Hidden groove; 15. Screw barrel; 16. Inner rod; 17. Connecting block; 18. Connecting plate; 19. Movable rod; 20. Side plate; 21. Horizontal plate; 22. Adjusting screw; 23. Mounting slot; 24. Horizontal rotating rod. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] In some embodiments, please refer to the accompanying drawings. Figure 1 、 Figure 2 and Figure 3, a new type of hydraulic centralizer that is easy to install, includes an above-ground wellbore 1 and a positioning part, the positioning part includes two groups of long positioning plates 2 and two groups of short positioning plates 3, a slide groove 4 is opened at the center of the side of the long positioning plate 2, and sliders 5 are symmetrically slid on both sides of the center of the slide groove 4, and a screw rod 6 is threaded through the side of the slider 5. The two ends of the screw 6 rotate and penetrate the two sides of the long positioning plate 2, and the short positioning plate 3 is fixed to the side of the slider 5. A mounting frame 7 is fixed to the bottom end of the short positioning plate 3, and a hydraulic telescopic rod 8 is arranged in the mounting frame 7. The piston rod inside the hydraulic telescopic rod 8 movably penetrates the short positioning plate 3 and is connected to a lifting plate 9. A straightening cylinder 10 is installed on the top of the lifting plate 9, and a positioning plate 11 is fixed to the side of the mounting frame 7. Positioning holes 12 are symmetrically opened on the side of the positioning plate 11;

[0027] In the embodiment of the present invention, the positioning piece is placed outside the ground wellbore 1, the positioning long plate 2 is in contact with the side wall of the ground wellbore 1, the screw rod 6 is rotated, and the screw thread of the screw rod 6 and the slider 5 is used to drive it to move in the slide groove 4, so that the two sets of positioning short plates 3 are fitted with the side wall of the ground wellbore 1, and the positioning piece and the side wall of the ground wellbore 1 are fixed by using the positioning plate 11 and the positioning hole 12. After the fixation is completed, the hydraulic telescopic rod 8 is moved to adjust the height of the lifting plate 9 to make it higher than the top of the ground wellbore 1, and the corresponding straightening cylinder 10 is fixed on the lifting plate 9. The external casing passes through the center of the straightening cylinder 10 and is lowered into the ground wellbore 1 to ensure that the casing is in the center of the wellbore when it is lowered;

[0028] In the embodiment of the present invention, by providing the positioning long plate 2, the positioning short plate 3, the chute 4, the slider 5 and the screw 6, the screw 6 can be rotated according to the size of the aboveground wellbore 1, and the screw 6 and the slider 5 are driven to move in the chute 4 by the threaded fit of the screw 6 and the slider 5, so that the two sets of positioning short plates 3 are fitted to the side wall of the aboveground wellbore 1, and the positioning parts are adjusted and installed, which facilitates the subsequent installation of the straightening cylinder 10;

[0029] In one embodiment of the present invention, a slide groove 4 is provided at both ends of the positioning long plate 2 and a group of slide grooves 4 are slid with a block 13 at the end, the block 13 is threadedly fixed to the side of the positioning long plate 2, and the screw 6 is rotated to penetrate the block 13, so that the positioning long plate 2 and the positioning short plate 3 can be detached and connected, which is convenient for installation on the side wall of the ground wellbore 1 of different sizes; a hidden groove 14 is provided in the center of both ends of the positioning short plate 3, a screw barrel 15 is fixed in the hidden groove 14, and the length of the screw barrel 15 is equal to the length of the hidden groove 14, and an inner rod 16 is threadedly connected to the inner wall of the screw barrel 15, and the length of the inner rod 16 is slightly larger than the length of the screw barrel 15, and a connecting block 17 is rotated at the end of the inner rod 16, and the connecting block 17 is threadedly fixed to the side of the slider 5. The length of the positioning short plate 3 can be adjusted by using the threaded cooperation of the inner rod 16 and the screw barrel 15;

[0030] In some embodiments, as Figure 1 and Figure 4As shown, a connecting plate 18 is threadedly fixed to the side of the straightening cylinder 10 and the side of the lifting plate 9, and an adjusting member is provided on the side of the straightening cylinder 10. The adjusting member includes a movable rod 19, a side plate 20, a transverse plate 21 and an adjusting screw 22. The movable rod 19 is symmetrically movable and penetrates the side of the straightening cylinder 10. The side plate 20 is fixed to the end of the movable rod 19, and the transverse plate 21 is fixed to the other end of the movable rod 19. The adjusting screw 22 is threaded through the transverse plate 21. The side plate 20 and the transverse plate 21 are respectively threadedly fixed to the end of the movable rod 19. A mounting groove 23 is opened on the side of the side plate 20. One end of the transverse plate 21 is arranged beyond the vertical plane where the edge section of the straightening cylinder 10 is located. A horizontal rotating rod 24 is evenly rotated in the mounting groove 23.

[0031] In the embodiment of the present invention, when in use, the positioning piece is placed outside the wellbore 1 on the ground, the positioning long plate 2 is in contact with the side wall of the wellbore 1 on the ground, and according to the size of the wellbore 1 on the ground, the inner rod 16 is rotated to adjust the length of the screw barrel 15 so that the connecting block 17 and the slider 5 fit together, and the screw is fixed on the slider 5 to install the positioning short plate 3, and then the screw 6 is rotated to use the threaded fit of the screw 6 and the slider 5 to drive it to move in the slide 4, so that the two sets of positioning short plates 3 fit together with the side wall of the wellbore 1 on the ground, and the positioning plate 11 and the positioning hole are used to fix the positioning short plate 3 on the wellbore 1. 12 Fix the positioning piece to the side wall of the ground wellbore 1. After the fixation is completed, move the hydraulic telescopic rod 8 to adjust the height of the lifting plate 9 so that it is higher than the top of the ground wellbore 1. Fix the corresponding centralizing cylinder 10 on the lifting plate 9 through the connecting plate 18. Finally, according to the size of the sleeve to be lowered, turn the adjusting screw 22 to drive the two sets of horizontal plates 21 to move, thereby moving the movable rod 19 and adjusting the position of the side plate 20. The external casing passes through the side plate 20 and passes through the center of the centralizing cylinder 10 and is lowered into the ground wellbore 1, ensuring that the casing is in the center of the wellbore when it is lowered;

[0032] In an embodiment of the present utility model, by setting a movable rod 19, a side plate 20, a transverse plate 21 and an adjusting screw 22, according to the size of the sleeve to be inserted, the adjusting screw 22 is rotated to drive the two sets of transverse plates 21 to move, thereby moving the movable rod 19 and adjusting the position of the side plate 20 to facilitate the insertion of the external sleeve; by setting a mounting groove 23 and a horizontal rotating rod 24, when the external sleeve contacts the side plate 20, the horizontal rotating rod 24 assists its downward movement.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of hydraulic centralizer that is easy to install, comprising an above-ground wellbore (1) and a positioning member, characterized in that: The positioning member comprises two groups of positioning long plates (2) and two groups of positioning short plates (3), a slide groove (4) is provided at the center of the side of the positioning long plate (2), and sliders (5) are symmetrically slid on both sides of the center of the slide groove (4), a screw rod (6) is threaded through the side of the slider (5), and both ends of the screw rod (6) are rotated to penetrate the two sides of the positioning long plate (2), the positioning short plate (3) is fixed on the side of the slider (5), and a mounting frame (7) is fixed at the bottom end of the positioning short plate (3), a hydraulic telescopic rod (8) is provided in the mounting frame (7), and the piston rod inside the hydraulic telescopic rod (8) is movably penetrated through the positioning short plate (3) and connected to a lifting plate (9), and a straightening cylinder (10) is installed at the top of the lifting plate (9), and a positioning plate (11) is fixed on the side of the mounting frame (7), and positioning holes (12) are symmetrically provided on the side of the positioning plate (11).

2. The new hydraulic centralizer that is easy to install according to claim 1 is characterized in that: The slide grooves (4) are arranged at both ends of the positioning long plate (2), and a block (13) is slidably provided at the end of one group of slide grooves (4). The block (13) is threadedly fixed on the side of the positioning long plate (2), and the screw rod (6) is rotated to pass through the block (13).

3. The new hydraulic centralizer that is easy to install according to claim 2 is characterized in that: Hidden grooves (14) are provided at the centers of both ends of the positioning short plate (3), a screw barrel (15) is fixed in the hidden groove (14), an inner rod (16) is connected to the inner thread of the screw barrel (15), a connecting block (17) is rotatably connected to the end of the inner rod (16), and the connecting block (17) is fixed to the side of the slider (5) by thread.

4. The new hydraulic centralizer that is easy to install according to claim 3 is characterized in that: The length of the screw barrel (15) is equal to the length of the hidden groove (14), and the length of the inner rod (16) is slightly greater than the length of the screw barrel (15).

5. The new hydraulic centralizer that is easy to install according to claim 4 is characterized in that: A connecting plate (18) is threadedly fixed to the side of the straightening cylinder (10) and the side of the lifting plate (9).

6. The new hydraulic centralizer that is easy to install according to claim 5 is characterized in that: An adjusting member is provided on the side of the straightening cylinder (10), and the adjusting member includes a movable rod (19), a side plate (20), a transverse plate (21) and an adjusting screw (22).

7. The new hydraulic centralizer that is easy to install according to claim 6 is characterized in that: The movable rod (19) is symmetrically movable and penetrates the side of the straightening cylinder (10), the side plate (20) is fixed to the end of the movable rod (19), the horizontal plate (21) is fixed to the other end of the movable rod (19), and the adjusting screw (22) is threaded and penetrates the horizontal plate (21).

8. The new hydraulic centralizer that is easy to install according to claim 7 is characterized in that: The side plates (20) and the transverse plate (21) are respectively threadedly fixed to the ends of the movable rod (19), and a mounting groove (23) is provided on the side of the side plate (20). One end of the transverse plate (21) is arranged beyond the vertical plane where the edge section of the straightening cylinder (10) is located, and a horizontal rotating rod (24) is evenly rotated in the mounting groove (23).

Images