Petroleum drilling casing running grouting mechanism

Abstract

The utility model provides a casing running grouting mechanism for petroleum drilling, which relates to the technical field of petroleum drilling grouting and comprises a support frame, a moving frame capable of horizontally moving along the support frame and a lifting support arranged on the moving frame, and a driving part for driving the moving frame to move is further arranged on the support frame. The driving piece comprises a lead screw, a lead screw seat connected to the lead screw and a motor fixed to one side of the supporting frame. The cleaning mechanism is used for cleaning the screw rod; the cleaning mechanism comprises a cleaning block arranged on one side of the screw rod seat; compared with the prior art, due to the arrangement of the cleaning mechanism, dust and other impurities attached to the lead screw can be cleaned, transmission jamming between the lead screw and the lead screw seat is avoided, the transmission effect of the lead screw can be improved, the service life of the lead screw can be prolonged, stable adjustment of the pouring connector is facilitated, and the production efficiency is improved. And grouting operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling grouting technology, and in particular to an oil drilling casing grouting mechanism. Background Technology

[0002] Currently, grouting is an essential procedure in oil drilling casing installation. During grouting, a grouting mechanism is often required to inject grout into the casing to complete the grouting operation.

[0003] For example, Chinese patent CN 219387852 U discloses a grouting device for oil drilling casing. This device, through the arrangement of an adjusting plate, a rectangular adjusting groove, a motor, a ball screw, and a rectangular slider, allows the motor shaft to rotate, driving the ball screw to rotate. This, in turn, moves the rectangular slider, threaded onto the outer edge of the ball screw, thus causing the entire grouting assembly to move laterally for easy adjustment to accommodate the grouting pipeline connection, making it highly practical. However, in actual use, because the rectangular adjusting groove on the adjusting plate is open and lacks a dust removal structure, dust and other impurities often accumulate in the groove during grouting. This causes impurities to adhere to the ball screw, making it prone to jamming during transmission, affecting the ball screw's transmission efficiency and service life, and consequently hindering the stable adjustment of the grouting joint position, thus impacting the grouting operation. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model proposes a grouting mechanism for downhole casing in oil drilling.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A casing grouting mechanism for oil drilling includes a support frame, a movable frame that can move horizontally along the support frame, and a lifting bracket mounted on the movable frame. A fixed ring is provided on one side of the lifting bracket, and a delivery pipe is fixed on the fixed ring. One end of the delivery pipe is connected to a ball valve and a grouting connector, and the other end is connected to a connecting end pipe. A drive component for driving the movable frame to move is also provided on the support frame.

[0007] The driving component includes a lead screw, a lead screw seat connected to the lead screw, and a motor fixed to one side of the support frame. The support frame has a cavity for the lead screw to be rotatably mounted, and the lead screw seat is located in the cavity.

[0008] It also includes a cleaning mechanism for cleaning the lead screw, the cleaning mechanism including a cleaning block disposed on one side of the lead screw seat, the cleaning block having an opening for the lead screw to pass through, and a cleaning component that contacts the lead screw being installed on the inner wall of the opening.

[0009] Preferably, the cleaning mechanism further includes a snap-fit ​​structure for quick assembly and disassembly of the cleaning block. The snap-fit ​​structure includes a snap-fit ​​block fixed to one side of the cleaning block, and the lead screw seat has a snap-fit ​​groove for snap-fitting the snap-fit ​​block.

[0010] Preferably, the lead screw seat is also provided with an insertion hole perpendicular to the locking groove, and an insertion rod is inserted into the insertion hole. One end of the insertion rod is equipped with a handle, and a through groove for pulling out the handle is provided on one side of the support frame.

[0011] Preferably, a limiting strip is installed at the bottom of the insertion rod, and grooves that cooperate with the limiting strip are provided at the bottom of the insertion hole and on the snap-fit ​​block.

[0012] More preferably, the lifting bracket includes a fixed rod fixed to the top of the movable frame and a movable rod inserted inside the fixed rod. The top of the movable frame is also equipped with a rotatable transmission shaft, and the top end of the transmission shaft is connected to a threaded rod. The movable rod has a threaded groove inside that mates with the threaded rod. A rotating rod is also rotatably mounted on the fixed rod, and one end of the rotating rod extends into the interior of the fixed rod and is equipped with a main gear. A secondary gear that meshes with the main gear is mounted on the transmission shaft.

[0013] More preferably, a limiting structure for locking the rotating rod is provided on one side of the fixed rod, and the limiting structure includes a fixed plate fixed to the side wall of the fixed rod. An adjusting screw is screwed onto the fixed plate, and a locking disc is rotatably connected to one end of the adjusting screw. One side of the locking disc forms an arc surface, and locking teeth are installed on the arc surface. A rotating disc is installed at one end of the rotating rod, and convex teeth that mesh with the locking teeth are installed on the outer circumference of the rotating disc.

[0014] Most preferably, slide rails are fixed on both sides of the support frame, the movable frame is installed on the top of the lead screw seat, and slide rail grooves that cooperate with the slide rails are opened on both sides of the inner wall of the movable frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In use, this utility model, through the setting of the cleaning mechanism, can drive the cleaning block to move synchronously through the lead screw seat. At this time, the lead screw passes through the through hole on the cleaning block and contacts the cleaning component. Then, under the rotation of the lead screw itself, the cleaning component brushes the outer wall of the lead screw, thereby cleaning the dust and other impurities attached to the lead screw. This avoids the accumulation of dust and other impurities on the lead screw, which may cause jamming between the lead screw and the lead screw seat. It can ensure the stable transmission of the lead screw, help improve the transmission effect of the lead screw, and extend the service life of the lead screw. This is also conducive to the stable adjustment of the grouting joint and facilitates the grouting operation.

[0017] 2. In use, the snap-fit ​​structure of this utility model enables quick assembly and disassembly of the cleaning block, facilitating its replacement and ensuring its cleaning effect on the lead screw. This, in turn, ensures stable transmission between the lead screw and its seat, facilitates stable adjustment of the grouting joint, and improves the efficiency of casing grouting in oil drilling. Furthermore, the combination of the limiting strip and the groove allows the limiting strip to stably limit the snap-fit ​​block, further ensuring stable installation of the cleaning block. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a structural schematic diagram of the lifting support;

[0022] Figure 4 for Figure 3 A partial sectional view;

[0023] Figure 5 This is a schematic diagram of the support frame structure;

[0024] Figure 6 for Figure 1 A sectional view of the central support frame;

[0025] Figure 7 This is a schematic diagram of the lead screw holder.

[0026] Figure 8 for Figure 7 A partial sectional view;

[0027] Figure 9 for Figure 8 Exploded structural diagram;

[0028] Figure 10 This is a partial sectional view of the insertion rod.

[0029] In the diagram: 1. Support frame; 2. Movable frame; 3. Slide rail; 4. Drive component; 41. Motor; 42. Lead screw; 43. Lead screw seat; 5. Lifting bracket; 51. Movable rod; 52. Fixed rod; 53. Rotating rod; 54. Threaded rod; 55. Threaded groove; 56. Transmission shaft; 57. Secondary gear; 58. Main gear; 6. Fixed ring; 7. Conveying pipe; 8. Ball valve; 9. Injection connector; 10. Connecting end pipe; 11. Cleaning mechanism; 111. Cleaning block; 112. Cleaning component; 113. Snap-fit ​​block; 114. Snap-fit ​​groove; 115. Handle; 116. Insert rod; 117. Insertion hole; 118. Limiting strip; 12. Limiting structure; 121. Fixed plate; 122. Adjusting screw; 123. Locking disc; 13. Through groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides, for example Figures 1-10 The oil drilling casing grouting mechanism shown includes a support frame 1, a movable frame 2 that can move horizontally along the support frame 1, and a lifting bracket 5 set on the movable frame 2. A fixing ring 6 is provided on one side of the lifting bracket 5, and a delivery pipe 7 is fixed on the fixing ring 6. One end of the delivery pipe 7 is connected to a ball valve 8 and a grouting connector 9, and the other end is connected to a connecting end pipe 10. A driving component 4 for driving the movable frame 2 to move is also provided on the support frame 1.

[0032] The driving component 4 includes a lead screw 42, a lead screw seat 43 connected to the lead screw 42, and a motor 41 fixed to one side of the support frame 1. The support frame 1 has a cavity for the lead screw 42 to be rotatably installed, and the lead screw seat 43 is located in the cavity. The bottom of the support frame 1 has an opening communicating with the cavity to facilitate the discharge of cleaned dust.

[0033] It also includes a cleaning mechanism 11 for cleaning the lead screw 42. The cleaning mechanism 11 includes a cleaning block 111 disposed on one side of the lead screw seat 43. The cleaning block 111 has an opening for the lead screw 42 to pass through, and a cleaning component 112 that contacts the lead screw 42 is installed on the inner wall of the opening. In this embodiment, the cleaning component 112 can be a brush.

[0034] Specifically, the lifting support 5 includes a fixed rod 52 fixed to the top of the movable frame 2 and a movable rod 51 inserted inside the fixed rod 52. The top of the movable frame 2 is also equipped with a rotatable drive shaft 56, and the top end of the drive shaft 56 is connected to a threaded rod 54. The movable rod 51 has a threaded groove 55 that mates with the threaded rod 54. A rotating rod 53 is rotatably mounted on the fixed rod 52, and one end of the rotating rod 53 extends into the interior of the fixed rod 52 and is equipped with a main gear 58. A secondary gear 57 that meshes with the main gear 58 is mounted on the drive shaft 56.

[0035] As described above, when performing grouting of the casing in oil drilling, the grouting mechanism is first placed at the construction site using the support frame 1, then the delivery pipe 7 is connected to the external grout delivery pipe using the connecting end pipe 10, the grouting connector 9 is aligned with the casing, the ball valve 8 is then opened, and after the construction personnel leave, the external delivery pump is turned on to pump the grout into the delivery pipe 7, and then the grout is injected into the casing through the grouting connector 9, thus completing the grouting operation.

[0036] Before grouting, construction personnel can rotate the rotating rod 53 to rotate the main gear 58 according to the required spacing between the grouting joint 9 and the drilling casing. Then, the main gear 58 drives the transmission shaft 56 to rotate through the meshing secondary gear 57. The transmission shaft 56 then drives the threaded rod 54 to rotate synchronously, and with the cooperation of the threaded groove 55, it drives the movable rod 51 to rise and fall along the inside of the fixed rod 52, thereby adjusting the height position of the grouting joint 9. During the grouting process, the motor 41 can drive the lead screw 42 to rotate, so that the lead screw 42 drives the lead screw seat 43 to move horizontally along the cavity in the support frame 1. At the same time, the movable frame 2 moves synchronously, and the lifting bracket 5 drives the delivery pipe 7 and the grouting joint 9 to move laterally, thereby adjusting the lateral position of the grouting joint 9 and thus adjusting the position of the grouting joint 9 to facilitate grouting.

[0037] Furthermore, when the lead screw 42 drives the lead screw seat 43 to move horizontally, the lead screw seat 43 can drive the cleaning block 111 on one side to move synchronously. At this time, the lead screw 42 passes through the through-hole on the cleaning block 111 and contacts the cleaning component 112. Subsequently, under the rotation of the lead screw 42 itself, the cleaning component 112 cleans the outer wall of the lead screw 42, thereby cleaning the dust attached to the lead screw 42. This prevents the accumulation of dust on the lead screw 42 from causing jamming during transmission between it and the lead screw seat 43, ensuring stable transmission of the lead screw 42. This, in turn, facilitates the stable adjustment of the injection joint 9. In addition, in practice, if jamming occurs between the lead screw 42 and the lead screw seat 43, kerosene or gasoline can be added to the cleaning component 112. Then, the lead screw 42 drives the lead screw seat 43 to move back and forth, and the lead screw seat 43 drives the cleaning block 111 to move back and forth along the lead screw 42 to clean the lead screw 42 and ensure stable and accurate transmission of the lead screw 42.

[0038] Meanwhile, in this embodiment, such as Figure 1 and Figure 3 As shown, a limiting structure 12 for locking the rotating rod 53 is also provided on one side of the fixed rod 52. The limiting structure 12 includes a fixed plate 121 fixed to the side wall of the fixed rod 52. An adjusting screw 122 is screwed onto the fixed plate 121. One end of the adjusting screw 122 is rotatably connected to a locking disc 123. One side of the locking disc 123 forms an arc surface, and locking teeth are installed on the arc surface. One end of the rotating rod 53 is equipped with a rotating disc, and convex teeth that mesh with the locking teeth are installed on the outer circumference of the rotating disc.

[0039] When the construction personnel adjust the lifting bracket 5 by rotating the rod 53, they can first rotate the adjusting screw 122 so that the adjusting screw 122 drives the locking plate 123 away from the rotating plate at one end of the rotating rod 53. Then, the construction personnel rotate the rotating rod 53 by rotating the plate to adjust the lifting bracket 5. After the lifting bracket 5 is adjusted, the adjusting screw 122 can be rotated in the opposite direction so that the adjusting screw 122 drives the locking plate 123 to move until the locking teeth on one side of the locking plate 123 engage with the protruding teeth on the rotating plate. This locks and limits the rotating rod 53, preventing it from rotating. This allows the lifting bracket 5 to remain fixed after adjustment, further facilitating the stable adjustment of the injection joint 9.

[0040] Furthermore, in order to ensure the stable movement of the movable frame 2 along the support frame 1, such as... Figures 1-5 As shown, slide rails 3 are fixed on both sides of the support frame 1, the movable frame 2 is installed on the top of the lead screw seat 43, and slide rail grooves that cooperate with the slide rails 3 are opened on both sides of the inner wall of the movable frame 2.

[0041] Additionally, in one embodiment, such as Figure 2 as well as Figures 7-9As shown, the cleaning mechanism 11 also includes a snap-fit ​​structure for quick assembly and disassembly of the cleaning block 111. The snap-fit ​​structure includes a snap-fit ​​block 113 fixed to one side of the cleaning block 111, and a snap-fit ​​groove 114 for snap-fitting the snap-fit ​​block 113 is provided on the lead screw seat 43.

[0042] Meanwhile, in this embodiment, in order to ensure the stable installation of the cleaning block 111, such as Figures 7-9 As shown, the lead screw seat 43 is also provided with a socket 117 perpendicular to the snap-fit ​​groove 114, and a plug rod 116 is inserted into the socket 117. A handle 115 is installed at one end of the plug rod 116, and a through groove 13 for the handle 115 to be pulled out is provided on one side of the support frame 1.

[0043] As described above, when the cleaning block 111 needs to be replaced, the insert rod 116 can be pulled out of the insertion hole 117 through the handle 115, and then the cleaning block 111 can be pulled upward, causing the snap-fit ​​block 113 to move out of the snap-fit ​​groove 114, so as to remove the cleaning block 111 from the screw seat 43. Then the cleaning block 111 can be replaced. After replacement, the snap-fit ​​block 113 on one side of the cleaning block 111 can be inserted into the snap-fit ​​groove 114, and then the insert rod 116 can be inserted into the insertion hole 117 through the handle 115, so as to install the cleaning block 111 on the screw seat 43. This enables the quick installation and removal of the cleaning block 111, facilitates the replacement of the cleaning block 111, ensures the cleaning effect of the cleaning block 111 on the screw 42, and ensures the stable transmission between the screw 42 and the screw seat 43. It also facilitates the stable adjustment of the grouting joint 9 and helps to improve the efficiency of casing grouting in oil drilling.

[0044] Furthermore, such as Figure 9 and Figure 10 As shown, a limiting strip 118 is installed at the bottom of the insertion rod 116, and grooves that cooperate with the limiting strip 118 are provided at the bottom of the insertion hole 117 and on the snap-fit ​​block 113.

[0045] As described above, when the insertion rod 116 is inserted into the insertion hole 117, the limiting strip 118 is inserted into the groove on the insertion hole 117 and the snap-fit ​​block 113, so that the limiting strip 118 stably limits the snap-fit ​​block 113, and further realizes the stable installation of the cleaning block 111.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grouting mechanism for downhole casing in oil drilling, characterized in that: It includes a support frame (1), a movable frame (2) that can move horizontally along the support frame (1), and a lifting bracket (5) set on the movable frame (2). A fixing ring (6) is provided on one side of the lifting bracket (5), and a delivery pipe (7) is fixed on the fixing ring (6). One end of the delivery pipe (7) is connected to a ball valve (8) and an injection connector (9), and the other end is connected to a connecting end pipe (10). A driving component (4) for driving the movable frame (2) to move is also provided on the support frame (1). The driving component (4) includes a lead screw (42), a lead screw seat (43) connected to the lead screw (42), and a motor (41) fixed to one side of the support frame (1). The support frame (1) has a cavity for the lead screw (42) to be rotatably installed, and the lead screw seat (43) is located in the cavity. It also includes a cleaning mechanism (11) for cleaning the lead screw (42). The cleaning mechanism (11) includes a cleaning block (111) disposed on one side of the lead screw seat (43). The cleaning block (111) has an opening for the lead screw (42) to pass through, and a cleaning component (112) that contacts the lead screw (42) is installed on the inner wall of the opening.

2. The oil drilling casing grouting mechanism according to claim 1, characterized in that: The cleaning mechanism (11) also includes a snap-fit ​​structure for quick assembly and disassembly of the cleaning block (111). The snap-fit ​​structure includes a snap-fit ​​block (113) fixed on one side of the cleaning block (111), and the lead screw seat (43) is provided with a snap-fit ​​groove (114) for snap-fitting the snap-fit ​​block (113).

3. The oil drilling casing grouting mechanism according to claim 2, characterized in that: The lead screw seat (43) is also provided with a socket (117) perpendicular to the snap-fit ​​groove (114), and a plug rod (116) is inserted into the socket (117). A handle (115) is installed at one end of the plug rod (116), and a through groove (13) is provided on one side of the support frame (1) for the handle (115) to be pulled out.

4. The oil drilling casing grouting mechanism according to claim 3, characterized in that: The bottom of the insertion rod (116) is equipped with a limiting strip (118), and the bottom of the insertion hole (117) and the snap-fit ​​block (113) are provided with grooves that cooperate with the limiting strip (118).

5. The oil drilling casing grouting mechanism according to claim 1, characterized in that: The lifting bracket (5) includes a fixed rod (52) fixed to the top of the movable frame (2) and a movable rod (51) inserted inside the fixed rod (52). The top of the movable frame (2) is also equipped with a rotatable transmission shaft (56), and the top end of the transmission shaft (56) is connected to a threaded rod (54). The movable rod (51) has a threaded groove (55) that mates with the threaded rod (54). A rotating rod (53) is rotatably mounted on the fixed rod (52), and one end of the rotating rod (53) extends into the interior of the fixed rod (52) and is equipped with a main gear (58). A secondary gear (57) that meshes with the main gear (58) is mounted on the transmission shaft (56).

6. The oil drilling casing grouting mechanism according to claim 5, characterized in that: The fixed rod (52) is also provided with a limiting structure (12) for locking the rotating rod (53) on one side. The limiting structure (12) includes a fixed plate (121) fixed on the side wall of the fixed rod (52). An adjusting screw (122) is screwed onto the fixed plate (121). One end of the adjusting screw (122) is rotatably connected to a locking disc (123). One side of the locking disc (123) forms an arc surface, and locking teeth are installed on the arc surface. One end of the rotating rod (53) is equipped with a rotating disc, and the outer circumference of the rotating disc is equipped with protruding teeth that mesh with the locking teeth.

7. The oil drilling casing grouting mechanism according to claim 1, characterized in that: The support frame (1) has slide rails (3) fixed on both sides. The movable frame (2) is installed on the top of the lead screw seat (43), and the inner walls of the movable frame (2) are provided with slide rail grooves that cooperate with the slide rails (3).

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