Petroleum drilling wellhead falling object prevention structure capable of reducing blockage

Abstract

The utility model relates to the technical field of oil drilling well mouth falling object prevention, and discloses an oil drilling well mouth falling object prevention structure capable of reducing blockage, which comprises a frame and a falling object collection component arranged in the frame. When the falling object preventing structure is used for preventing falling objects at a petroleum drilling opening, falling objects falling from the falling preventing plate can be effectively collected through the screen, interference to the operation process is avoided, continuity of drilling operation is guaranteed, operation interruption caused by the fact that the falling objects block a channel or influence operation of equipment is avoided, and the service life of the equipment is prolonged. According to the anti-falling device for the petroleum drilling port, drilling operation can be conducted smoothly according to plans, falling objects are collected through a screen, equipment around the interior of the petroleum drilling port can be protected, meanwhile, a crank is rotated to be matched with a rotating shaft to rotate a scraper, and then small falling objects on an anti-falling plate are scraped into the screen to be collected; and meanwhile, the crank can be pulled to drive the anti-falling plate to be taken out from the interior of the frame, and convenience is provided for taking out the anti-falling plate.

Description

Technical Field

[0001] The utility model relates to the technical field of preventing falling objects at oil drilling wells, and particularly relates to a structure for preventing falling objects at an oil drilling wellhead that reduces blockage. Background Art

[0002] Drilling is the work of drilling a hole in the formation from the ground using mechanical equipment or manpower. It usually refers to the project of drilling a wellbore and a large-diameter water supply well for exploring or developing liquid and gaseous minerals such as oil and natural gas. During the process of oil drilling, it is crucial to prevent falling objects at the wellhead. Therefore, a structure for preventing falling objects needs to be installed at the oil drilling wellhead.

[0003] The applicant believes that:

[0004] When the structure for preventing falling objects works to prevent falling objects at the oil drilling wellhead, most of them cannot well collect the dropped objects from the structure for preventing falling objects. The uncollected dropped objects may damage the equipment around the inside of the wellhead. And if the dropped objects fall into the drilling well, special measures may be needed to salvage them, which will further affect the progress and efficiency of the drilling operation, and thus improvement is needed. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a structure for preventing falling objects at an oil drilling wellhead that reduces blockage, which has the function of collecting the dropped objects in the structure for preventing falling objects, and solves the problems that most of them cannot well collect the dropped objects from the structure for preventing falling objects, the uncollected dropped objects may damage the equipment around the inside of the wellhead, and if the dropped objects fall into the drilling well, special measures may be needed to salvage them, which will further affect the progress and efficiency of the drilling operation.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: A structure for preventing falling objects at an oil drilling wellhead that reduces blockage, including a frame and a dropped object collection component. The dropped object collection component is arranged inside the frame. The dropped object collection component includes an anti-falling plate, support blocks, support grooves, a rotating shaft, a scraper, a crank, a sieve mesh, and a bottom plate.

[0009] Support blocks are welded around the anti-falling plate. Support grooves are formed inside the frame on the outer sides of the support blocks. A rotating shaft is fitted inside the anti-falling plate. Scrapers are welded to both sides of the rotating shaft. A crank is fixedly connected above the rotating shaft. A sieve mesh is fixedly connected below the anti-falling plate. A bottom plate is arranged at the lower end of the sieve mesh.

[0010] Further, the anti-falling plate is movably connected inside the frame.

[0011] Further, threaded blocks are connected through the periphery below the bottom plate, and hand-tightening screws are threadedly connected inside the threaded blocks.

[0012] Further, the bottom plate is fixed to the screen through the cooperation of the hand-tightening screw and the threaded block.

[0013] Further, installation components are arranged around the outer wall of the frame. The installation components include installation blocks, support plates, threaded rods, nuts, fixing pieces, and fixing holes.

[0014] Further, installation blocks are welded and connected around the outer wall of the frame, and support plates are movably connected below the installation blocks.

[0015] Further, threaded rods are welded and connected inside the support plates, and nuts are threadedly connected above the upper ends of the threaded rods and located above the installation blocks.

[0016] Further, fixing pieces are welded and connected to one end of the support plate, and fixing holes are connected through the fixing pieces.

[0017] Compared with the prior art, the present utility model provides an anti-falling object structure for an oil drilling wellhead that reduces blockage, and has the following beneficial effects:

[0018] 1. When the anti-falling object structure prevents falling objects at the oil drilling wellhead, through the arrangement of the screen, falling objects dropped from the anti-falling plate can be effectively collected, without interfering with the operation process, ensuring the continuity of the drilling operation, avoiding operation interruption caused by falling objects blocking the channel or affecting the operation of equipment, ensuring that the drilling operation can proceed smoothly as planned. Moreover, through the collection of falling objects by the screen, the equipment around the inner periphery of the oil drilling wellhead can be protected. At the same time, by rotating the crank handle and cooperating with the rotating shaft to rotate the scraper, small falling objects on the anti-falling plate can be scraped into the screen for collection. Meanwhile, the crank handle can be pulled to drive the anti-falling plate to be taken out from the frame, providing convenience for the removal of the anti-falling plate.

[0019] 2. When the anti-falling object structure prevents falling objects at the oil drilling wellhead, by placing the fixing piece at a suitable position on the inner wall of the oil drilling wellhead, and then cooperating with the expansion bolt to be screwed into the fixing hole to fix the fixing piece, and then inserting the installation blocks around the frame into the threaded rod, and then screwing the nut to fix the installation block, the installation function of the frame is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the anti-falling object structure for an oil drilling wellhead that reduces blockage provided by an embodiment of the present utility model;

[0021] Figure 2It is a schematic structural diagram of the falling object collection component of the anti-falling object structure at the oil drilling wellhead that reduces blockage provided by an embodiment of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the bottom of the screen of the anti-falling object structure at the oil drilling wellhead that reduces blockage provided by an embodiment of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the installation component of the anti-falling object structure at the oil drilling wellhead that reduces blockage provided by an embodiment of the present utility model.

[0024] Wherein: 1. Frame; 2. Falling object collection component; 201. Anti-falling plate; 202. Support block; 203. Support groove; 204. Rotating shaft; 205. Scraper; 206. Crank; 207. Screen; 208. Bottom plate; 209. Threaded block; 210. Hand-tightening screw; 3. Installation component; 301. Installation block; 302. Support plate; 303. Threaded rod; 304. Nut; 305. Fixed piece; 306. Fixed hole. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: an anti-falling object structure at the oil drilling wellhead that reduces blockage, including a frame 1 and a falling object collection component 2. The falling object collection component 2 is arranged inside the frame 1, and installation components 3 are arranged around the outer wall of the frame 1.

[0027] Wherein: when the anti-falling object structure prevents falling objects at the oil drilling wellhead, first install the frame 1 to a suitable position on the inner wall of the oil drilling wellhead through the installation component 3, and then collect the falling objects dropped at the oil drilling wellhead through the falling object collection component 2.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3, an anti-falling object structure for oil drilling wellheads that reduces blockage. The falling object collection component 2 includes an anti-falling plate 201, support blocks 202, support grooves 203, a rotating shaft 204, a scraper 205, a crank 206, a sieve 207, and a bottom plate 208. Support blocks 202 are welded around the anti-falling plate 201. Support grooves 203 are provided on the outside of the support blocks 202 inside the frame 1. A rotating shaft 204 is fitted inside the anti-falling plate 201. Scrapers 205 are welded on both sides of the rotating shaft 204. A crank 206 is fixedly connected above the rotating shaft 204. A sieve 207 is fixedly connected below the anti-falling plate 201. A bottom plate 208 is provided at the lower end of the sieve 207. The anti-falling plate 201 is movably connected inside the frame 1. Threaded blocks 209 penetrate through the periphery below the bottom plate 208. A hand-tightening screw 210 is threadedly connected inside the threaded blocks 209. The bottom plate 208 is fixed to the sieve 207 through the hand-tightening screw 210 and the threaded blocks 209.

[0029] Among them: When the falling object collection component 2 collects falling objects at the oil drilling wellhead, first, the anti-falling plate 201 is installed by clamping the support blocks 202 into the support grooves 203 inside the frame 1. When falling objects drop at the oil drilling wellhead, the anti-falling plate 201 can isolate the falling objects. Smaller-sized falling objects will fall into the sieve 207 for collection, without interfering with the operation process, ensuring the continuity of the drilling operation, avoiding operation interruptions caused by falling objects blocking the passage or affecting the operation of equipment, and ensuring that the drilling operation can proceed smoothly as planned. Moreover, through the collection of falling objects by the sieve 207, it provides protection for the equipment around the inside of the oil drilling wellhead. At the same time, by rotating the crank 206 to rotate the scraper 205 in cooperation with the rotating shaft 204, small falling objects on the anti-falling plate 201 can be scraped into the sieve 207 for collection. At the same time, the crank 206 can be pulled to drive the anti-falling plate 201 to be taken out from inside the frame 1, providing convenience for the removal of the anti-falling plate 201. And through the disassembly and assembly of the bottom plate 208 by the hand-tightening screw 210 and the threaded blocks 209, it provides a function for cleaning the falling objects stored inside the sieve 207.

[0030] Please refer to Figure 1 and Figure 4 , an anti-falling object structure for oil drilling wellheads that reduces blockage. The installation component 3 includes installation blocks 301, support plates 302, threaded rods 303, nuts 304, fixing pieces 305, and fixing holes 306. Installation blocks 301 are welded around the outer wall of the frame 1. A support plate 302 is movably connected below the installation blocks 301. A threaded rod 303 is welded inside the support plate 302. A nut 304 is threadedly connected above the upper end of the threaded rod 303 and above the installation blocks 301. A fixing piece 305 is welded at one end of the support plate 302. A fixing hole 306 penetrates through the fixing piece 305.

[0031] Wherein: When the installation component 3 installs and fixes the frame 1, first place the fixing piece 305 at a suitable position on the inner wall of the oil drilling wellhead, and then cooperate with the expansion bolt to screw into the fixing hole 306 to fix the fixing piece 305. Subsequently, insert the installation blocks 301 around the frame 1 into the internal thread rod 303, and then turn the nut 304 to fix the installation blocks 301, thereby providing the installation function for the frame 1.

[0032] The working principle of the present utility model is as follows: When the falling object prevention structure prevents falling objects at the oil drilling wellhead, first place the fixing piece 305 at a suitable position on the inner wall of the oil drilling wellhead, and then cooperate with the expansion bolt to screw into the fixing hole 306 to fix the fixing piece 305. Subsequently, insert the installation blocks 301 around the frame 1 into the internal thread rod 303, and then turn the nut 304 to fix the installation blocks 301 to install the frame 1. After installing the frame 1, then snap the anti-falling plate 201 into the support groove 203 inside the frame 1 through the support block 202 for installation. When a falling object drops at the oil drilling wellhead, the anti-falling plate 201 can isolate the falling object. Smaller falling objects will fall into the inside of the screen 207 for collection. At the same time, by rotating the crank 206 and cooperating with the rotating shaft 204 to rotate the scraper 205, the small falling objects on the anti-falling plate 201 are scraped into the inside of the screen 207 for collection. At the same time, the crank 206 can be pulled to drive the anti-falling plate 201 to be taken out from inside the frame 1, providing convenience for the removal of the anti-falling plate 201. When it is necessary to clean the falling objects inside the screen 207, only need to unscrew the hand-tightening screw rod 210 inside the threaded block 209, and then the bottom plate 208 can be disassembled to clean the falling objects inside the screen 207. In this way, the working principle and working process of an anti-falling object structure for an oil drilling wellhead with reduced blockage are completed, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-falling object structure for an oil drilling wellhead that reduces blockage, characterized in that, It includes a frame (1) and a falling object collection component (2). The falling object collection component (2) is arranged inside the frame (1). The falling object collection component (2) includes an anti-falling plate (201), support blocks (202), support grooves (203), a rotating shaft (204), a scraping plate (205), a crank (206), a sieve (207), and a bottom plate (208). Support blocks (202) are welded around the anti-falling plate (201). Support grooves (203) are formed inside the frame (1) on the outer sides of the support blocks (202). A rotating shaft (204) is fitted inside the anti-falling plate (201). Scraping plates (205) are welded on both sides of the rotating shaft (204). A crank (206) is fixedly connected above the rotating shaft (204). A sieve (207) is fixedly connected below the anti-falling plate (201). A bottom plate (208) is arranged at the lower end of the sieve (207).

2. The anti-falling object structure at the oil drilling wellhead for reducing blockage according to claim 1, characterized in that: The anti-falling plate (201) is movably connected inside the frame (1).

3. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 1, characterized in that: Threaded blocks (209) penetrate through the periphery below the bottom plate (208). A hand-tightening screw (210) is threadedly connected inside the threaded blocks (209).

4. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 3, characterized in that: The bottom plate (208) is fixed to the sieve (207) through the cooperation of the hand-tightening screw (210) and the threaded blocks (209).

5. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 1, characterized in that: Mounting components (3) are arranged around the outer wall of the frame (1). The mounting components (3) include mounting blocks (301), support plates (302), threaded rods (303), nuts (304), fixing pieces (305), and fixing holes (306).

6. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 5, characterized in that: Mounting blocks (301) are welded around the outer wall of the frame (1). Support plates (302) are movably connected below the mounting blocks (301).

7. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 6, characterized in that: Threaded rods (303) are welded inside the support plates (302). Nuts (304) are threadedly connected above the upper ends of the threaded rods (303) and located above the mounting blocks (301).

8. A structure for preventing falling objects at the oil drilling wellhead to reduce blockage according to claim 7, characterized in that: Fixing pieces (305) are welded to one end of the support plates (302). Fixing holes (306) penetrate through the fixing pieces (305).

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