Exploration pipeline righting device for oil exploitation

Abstract

The utility model discloses an exploration pipeline centralizing device for oil exploitation, and belongs to the technical field of oil exploitation equipment. The exploration pipeline righting device for oil exploitation comprises a righting frame, the righting frame comprises a first horn mouth, a butt joint cylinder and a second horn mouth which are sequentially connected from top to bottom, and the caliber of the ends, away from the butt joint cylinder, of the first horn mouth and the second horn mouth is larger than that of the butt joint cylinder; the caliber of the butt joint cylinder corresponds to the outer diameter of an exploration pipeline; the pipeline butt joint device has the advantages of being simple in structure, improving pipeline butt joint efficiency and reducing safety risks.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to a pipeline straightening device for oil extraction exploration. Background Technology

[0002] The exploration pipelines used in oil and gas development mainly include drill pipe, casing, coiled tubing, and drilling pipe. Drill pipe primarily bears the rotation and propulsion force of the drill bit and is used for material feeding, mud delivery, and coring during the drilling process. Casing is mainly used in oil well operations to transport crude oil, natural gas, and water, forming support and a seal on the wellbore to prevent wellbore collapse and cross-contamination of fluids from different formations. Coiled tubing is used to extract oil and natural gas from underground oil layers to the surface and is widely used in drilling, well completion, and well workover operations, enabling various operations such as sand flushing, well washing, acidizing, and fracturing. Drill pipe is used in oil and gas exploration and production drilling operations and is an important tool for drilling into the ground to form a wellbore.

[0003] Regardless of the type of pipeline, multiple docking operations are required during drilling to reach the desired drilling depth. In current technology, during the docking process for exploration pipelines, the first pipeline is typically located at the wellhead inside the borehole, while the second pipeline is hoisted and docked from the drilling rig. This docking process requires manual alignment of the two pipelines. However, exploration pipelines are large and heavy, and manual docking involves significant swaying, making it time-consuming, labor-intensive, and posing certain safety risks. Utility Model Content

[0004] The purpose of this invention is to solve the problem that manually straightening and connecting oil exploration pipelines in the existing technology is time-consuming, labor-intensive, and poses certain safety risks, and to propose a pipeline straightening device for oil extraction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A straightening device for an exploration pipeline used in oil extraction includes a straightening frame. The straightening frame includes a first flared end, a connecting cylinder, and a second flared end connected sequentially from top to bottom. The diameter of the end of the first flared end and the second flared end away from the connecting cylinder is larger than the diameter of the connecting cylinder. The diameter of the connecting cylinder corresponds to the outer diameter of the exploration pipeline.

[0007] Furthermore, the first flared opening, the docking cylinder, and the second flared opening are all composed of guide rods and guide rollers. Guide rollers are embedded in the inner wall of the guide rods, and multiple guide rods are distributed along a circumferential trajectory.

[0008] Furthermore, the guide rods are spaced apart from each other.

[0009] Furthermore, it also includes a support frame that wraps around the outside of the straightening frame.

[0010] Furthermore, it also includes a positioning structure for mounting the device on a drilling platform.

[0011] Furthermore, the positioning structure includes an angle plate fixedly connected to the support frame, a positioning block and a positioning bolt installed on the drilling platform, and positioning screw holes matching the positioning bolts are provided on the angle plate and the positioning block.

[0012] Compared with the prior art, this utility model provides a pipeline straightening device for oil exploration, which has the following advantages:

[0013] This utility model discloses a pipeline straightening device for oil exploration. In use, the straightening frame is installed at the wellhead, allowing the top of the preceding pipeline to enter the docking cylinder through the second flared end. Then, the drilling rig lifts the following pipeline, causing its bottom end to fall into the first flared end. The rig then lowers the following pipeline further, with the first flared end acting as a guide. Guided by the first flared end, the bottom end of the following pipeline eventually slides into the docking cylinder. The drilling rig then rotates the following pipeline, connecting it to the preceding pipeline via bolting. Compared to existing technologies that rely on manual straightening and docking, this device reduces labor intensity and risk.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of section A in the middle;

[0017] Figure 3 This is a side view of the overall structure of this utility model;

[0018] Figure 4 This is a top view of the overall structure of this utility model.

[0019] In the picture:

[0020] 1. Straightening frame; 101. Guide rod; 102. Guide roller; 103. First flared opening; 104. Connecting cylinder; 105. Second flared opening; 2. Support frame; 3. Positioning structure; 301. Angle plate; 302. Positioning bolt; 303. Positioning block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 This utility model discloses a pipeline straightening device for oil exploration, including a straightening frame 1, which is the main structure for straightening the pipeline.

[0023] The straightening frame 1 includes a first flared opening 103, a connecting cylinder 104, and a second flared opening 105 connected sequentially from top to bottom. The diameter of the end of the first flared opening 103 and the second flared opening 105 away from the connecting cylinder 104 is larger than the diameter of the connecting cylinder 104. The connecting cylinder 104 is a straight cylindrical structure with openings at both ends, and the diameter of the connecting cylinder 104 corresponds to the outer diameter of the exploration pipeline, specifically as follows: Figure 1 As shown.

[0024] The function of the first flared opening 103 and the second flared opening 105 is to guide the flow. When the two exploration pipes are connected, the latter pipe is located near the wellhead when it is lifted by the drilling platform. The size of the larger port of the first flared opening 103 is determined according to the pipe offset.

[0025] In use, first lift the straightening frame 1 and place it on top of the previous pipe located inside the well from top to bottom. The second flared port 105 can help the top of the previous pipe to smoothly enter the docking tube 104. After the top of the previous pipe has smoothly entered the docking tube 104, start lifting the next pipe and docking.

[0026] During docking, within the normal offset range, after the drilling tower is lifted, one pipe descends normally, and the bottom end of the second pipe falls from top to bottom into the first flared end 103. Then, under the guidance of the first flared end 103, the bottom end of the second pipe also enters the docking cylinder 104 for alignment and docking with the top end of the first pipe.

[0027] The first flared opening 103, the connecting cylinder 104, and the second flared opening 105 are all composed of a guide rod 101 and a guide roller 102. The guide roller 102 is embedded in the inner wall of the guide rod 101. The guide roller 102 is a roller in a roller bearing and has a cylindrical structure. The guide roller 102 is rotatably installed in the guide rod 101 in the vertical direction. The function of the guide roller 102 is to reduce the friction between the pipe end and the guide rod 101.

[0028] Multiple guide rods 101 are distributed along a circular trajectory, so that the multiple guide rods 101 form a rotating structure of the straightening frame 1. The axis of the straightening frame 1 is vertical, so that the two pipes to be connected can enter the middle of the straightening frame 1 from the upper and lower ends of the straightening frame 1.

[0029] The guide rods 101 are spaced apart, so that there is a gap between the two adjacent guide rods 101, which makes it easy for the staff to observe and confirm the position of the pipe end through the gap during the straightening process.

[0030] The device also includes a support frame 2, which is wrapped around the outside of the straightening frame 1. The support frame 2 is a cuboid frame structure with four vertical edges, which can be used as handles. During the installation of the device, the staff can drag and straighten the device by the handles.

[0031] The device also includes a positioning structure 3 for mounting the device on the drilling platform. When continuous docking of pipelines is required, the positioning structure 3 is used to fix the device on the drilling platform for continuous alignment and docking operations, preventing the device from being misaligned due to external forces during the docking process.

[0032] Specifically, the positioning structure 3 includes an angle plate 301 fixedly connected to the support frame 2, a positioning block 303 installed on the drilling platform, and a positioning bolt 302. The angle plate 301 and the positioning block 303 are both provided with positioning screw holes that match the positioning bolt 302. The angle plate 301 is installed on the bottom edge of the support frame 2. Before use, the positioning block 303 is first embedded in the drilling platform. When in use, the positioning bolt 302 passes through the positioning screw hole on the angle plate 301 and is screwed into the positioning screw hole on the positioning block 303, so that the docking cylinder 104 of this device is aligned with the previous pipe in the wellhead. In the subsequent docking process, it is only necessary to lift the subsequent pipe and use this device to straighten and dock it with the previous pipe.

[0033] Working principle: Before use, the positioning block 303 is embedded and installed in the drilling platform so that when the support frame 2 is connected to the positioning block 303, the docking cylinder 104 can be aligned with the wellhead.

[0034] In use, the device is placed on top of the preceding pipe so that the top of the preceding pipe is inside the docking cylinder 104. Then, the following pipe is lifted by the drilling platform and lowered. The bottom of the following pipe falls into the first flared opening 103 and enters the docking cylinder 104 under the guidance of the first flared opening 103, aligning with the preceding pipe.

[0035] When multiple pipelines need to be quickly and continuously connected, the support frame 2 is fixed on the drilling platform by the positioning structure 3, and then the uprighting and connection work is carried out.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A straightening device for an exploration pipeline used in oil extraction, characterized in that, The system includes a straightening frame (1), which includes a first flared opening (103), a connecting tube (104), and a second flared opening (105) connected sequentially from top to bottom. The diameter of the end of the first flared opening (103) and the second flared opening (105) away from the connecting tube (104) is larger than the diameter of the connecting tube (104). The diameter of the connecting tube (104) corresponds to the outer diameter of the exploration pipeline.

2. The exploration pipeline straightening device for oil extraction according to claim 1, characterized in that, The first horn opening (103), the docking cylinder (104), and the second horn opening (105) are all composed of guide rods (101) and guide rollers (102). Guide rollers (102) are embedded in the inner wall of the guide rods (101), and multiple guide rods (101) are distributed along a circumferential trajectory.

3. A pipeline straightening device for oil exploration as described in claim 2, characterized in that, The guide rods (101) are spaced apart from each other.

4. A pipeline straightening device for oil exploration as described in claim 1, characterized in that, It also includes a support frame (2), which is wrapped around the outside of the straightening frame (1).

5. A pipeline straightening device for oil exploration as described in claim 4, characterized in that, It also includes a positioning structure (3) for mounting the device on the drilling platform.

6. A pipeline straightening device for oil exploration as described in claim 5, characterized in that, The positioning structure (3) includes an angle plate (301) fixedly connected to the support frame (2), a positioning block (303) installed on the drilling platform, and a positioning bolt (302). The angle plate (301) and the positioning block (303) are provided with positioning screw holes that match the positioning bolt (302).

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