High-pressure-bearing faucet grouting tool

Abstract

The high-pressure-bearing faucet grouting tool comprises a faucet assembly and a base assembly arranged below the faucet assembly, the faucet assembly comprises an elbow, a spherical valve and an adjustable elbow which are sequentially connected, and the other end of the adjustable elbow is connected with a slurry injection pipeline; the base assembly comprises an inner cylinder and an outer cylinder which are sleeved inside and outside, and the top of the inner cylinder is welded and fixed to the adjustable elbow. The device is high in pressure bearing capacity and convenient to operate on site, the working efficiency is greatly improved, and hidden dangers of manual operation are reduced; by the adoption of the grouting device, sprayed slurry can be greatly reduced to be scattered on a drill floor face, and therefore the environment-friendly effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling equipment, and in particular relates to a high-pressure faucet grouting tool. Background Art

[0002] For many years, during the drilling site operation, when the casing was lowered and the drilling fluid was injected, the grouting pipeline pressure was low and the site operation efficiency was slow due to the backward grouting equipment. There are three traditional casing grouting methods:

[0003] 1. The bell mouth of the top drive is directly aligned with the inside of the casing: This method is to start the pump to grout during the process of lowering the casing after the casing is lifted and buckled. The main disadvantages of this method are: the driller needs to adjust the swing arm several times to align it with the inside of the casing, which is easy to be miscentered, resulting in grouting leakage, greatly affecting the operation timeliness, and is not environmentally friendly.

[0004] 2. The method of installing the buckle and hose at the bell mouth of the top drive: In this method, when buckling the lifting card, the personnel bend the hose and insert it into the casing. After the casing is lifted and buckled, the pump is turned on to grout during the process of the lower casing. The main disadvantages of this method are: the grouting device is easily damaged by the spraying at the connection with the top drive square guard, and the connection between the lower end of the buckle and the hose due to excessive pressure when the pump is turned on. The process of replacing damaged parts is cumbersome, and the operator needs to stand under the top drive every time when buckling a single lifting card, and bend the grouting hose hard to insert it into the casing. Different lengths of lifting rings need to be replaced with hoses of different lengths, resulting in a large number of hidden dangers in the operation. Since the pressure of the hose cannot be too high, it also leads to low operation efficiency.

[0005] 3. Pneumatic winch suspension hose method: This method is to grout through the hose. The hose is suspended by the pneumatic winch and placed above the turntable surface. After the casing below is stuck, two operators are required to push the hose into the casing. At this time, the driller starts the pump for grouting, and stops the pump before the driller lifts the traveling carriage to connect the next casing. The main disadvantages of this method are: two people are required to push the hose insertion head into the casing; when the driller starts the pump too high, the pressure excitement will cause the hose to shake violently and easily fly out of the casing to injure people and spray drilling fluid; the hose is suspended in the air, and there is a risk of falling objects. Utility Model Content

[0006] The utility model is proposed to overcome the shortcomings in the prior art, and its purpose is to provide a high-pressure faucet grouting tool.

[0007] The utility model is realized by the following technical solutions:

[0008] A high-pressure faucet grouting tool comprises a faucet assembly and a base assembly arranged below the faucet assembly, wherein the faucet assembly comprises an elbow, a ball valve and a flexible elbow connected in sequence, and the other end of the flexible elbow is connected to a mud injection pipeline; the base assembly comprises an inner tube and a protective tube arranged inside and outside, and the top of the inner tube is welded and fixed to the flexible elbow.

[0009] In the above technical solution, the high-pressure faucet grouting tool is installed on the operating surface of the drilling platform.

[0010] In the above technical solution, the bottom surface of the elbow is not lower than the top surface of the sleeve.

[0011] In the above technical solution, a plurality of grooves arranged along the axis are formed on the inner tube and the protective tube, and the inner tube and the protective tube are fixed to each other by passing the limit pins through the grooves on the inner tube and the protective tube.

[0012] In the above technical solution, the flexible elbow is made of carbon steel; the inner tube and the protective tube are both made of steel pipes.

[0013] In the above technical solution, the limit pin is a straight groove elastic pin made of 304 stainless steel and has chamfered ends.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides an environmentally friendly high-pressure faucet grouting tool with higher pressure-bearing capacity, more convenient on-site operation, and no mud splashing on-site; the utility model adopts a flexible elbow to connect the high-pressure grouting pipeline, and compared with the top drive direct grouting, hose grouting and water hose grouting methods, its pressure-bearing capacity is much higher, and the pressure-bearing capacity exceeds 5MPa, which can greatly improve the working efficiency; different from the traditional grouting tools, the utility model only needs one operator to switch the ball valve to complete the whole operation, which improves the working efficiency while reducing the hidden dangers of human operation; the use of the utility model for grouting can greatly reduce the sprayed mud from spilling on the drilling table, thereby playing an environmental protection role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model in a ready state before use;

[0017] Figure 2 It is a structural schematic diagram of the adjustable base in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the utility model in a docking state during use.

[0019] in:

[0020] 1 Faucet assembly

[0021] 11 Elbow 12 Ball valve

[0022] 13 Flexible elbow

[0023] 2 Base assembly

[0024] 21 Inner tube 22 Protective tube

[0025] 23 Limit pin 24 Groove eye

[0026] 3 Mud injection pipeline

[0027] 4 Casing

[0028] 5 Drilling platform operating surface.

[0029] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, a high-pressure faucet grouting tool comprises a faucet assembly 1 and a base assembly 2 arranged below the faucet assembly 1;

[0033] The faucet assembly 1 comprises an elbow 11, a ball valve 12 and a flexible elbow 13 which are connected in sequence, and the other end of the flexible elbow 13 is connected to the mud injection pipeline 3;

[0034] In this embodiment, the flexible elbow 13 is a special-shaped elbow component with a long radius of 90° as specified in the national standard "GB / T 12459-2017 Types and Parameters of Steel Butt-Welded Pipe Fittings"; the inner diameter of the flexible elbow is 21 / 2 inches (6.35 cm), the minimum outer diameter is 23 / 4 inches (6.985 cm), the maximum outer diameter (union) is 3 inches (7.62 cm), and the overall height of the flexible elbow is 80 cm; the flexible elbow 13 adopts the medium carbon steel in the national standard "GB / T 13304-91 Steel Classification".

[0035] The bottom surface of the elbow 11 is not lower than the top surface of the sleeve 4;

[0036] The base assembly 2 includes a retractable sleeve structure consisting of an inner sleeve 21 and a protective sleeve 22 arranged inside and outside. The top of the inner sleeve 21 is welded and fixed to the flexible elbow 13; a plurality of grooves 24 arranged along the axis are formed on the inner sleeve 21 and the protective sleeve 22, and the inner sleeve and the protective sleeve are fixed by passing the limit pin 23 through the grooves 24 on the inner sleeve 21 and the protective sleeve 22;

[0037] In this embodiment, the protective tube 22 is a steel tube with an inner diameter of 3 inches (7.62 cm) and a total length of 60 cm, and the inner tube 21 is a steel tube with an outer diameter of 21 / 2 inches (6.35 cm) and a total length of 90 cm;

[0038] In this embodiment, the stop pin 23 is a 45 cm long and 1.5 cm in diameter. 304 stainless steel straight slotted elastic pin with chamfered ends.

[0039] The high-pressure faucet grouting tool is installed on the drilling platform operating surface 5.

[0040] The use of the utility model:

[0041] like Figure 1 As shown, before being used, the device is in a ready state, the flexible elbow 13 can rotate 360 ​​degrees, and the operator connects the mud injection pipeline 3 with the flexible elbow 13 of the utility model, and the ball valve 12 is in a closed state.

[0042] like Figure 3 As shown, when it is needed to be used, the flexible elbow 13 can be operated to make the elbow 11 butt with the casing 4. At this time, the ball valve 12 is opened, and the mud can be injected into the casing 4 through the utility model device.

[0043] Comparison between the utility model and the prior art:

[0044] (1) Different installation positions: The utility model is installed on the operating surface of the drilling platform, while the traditional grouting tools are either installed on the top drive or on the water hose, both of which are located high above the drilling platform.

[0045] (2) Different pressure bearing capacity: The safe grouting pressure of the utility model is 5 MPa, and the grouting operation can be completed quickly below this pressure, while the pressure bearing capacity of the traditional hose or water hose grouting method is less than 5 MPa.

[0046] (3) Different operation methods: During the drilling operation, when the casing is lowered, the utility model assists in injecting drilling fluid. The grouting method adopts a faucet structure, and only one operator on the drilling platform can complete all operations, while the traditional operation method often requires the cooperation of a driller or two operators.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0048] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0050] The applicant declares that the above is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. The technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by the technicians in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.

Claims

1. A high pressure faucet grouting tool, Features: The invention comprises a faucet assembly (1) and a base assembly (2) arranged below the faucet assembly (1), wherein the faucet assembly (1) comprises an elbow (11), a ball valve (12) and a flexible elbow (13) which are connected in sequence, and the other end of the flexible elbow (13) is connected to a mud injection pipeline (3); the base assembly (2) comprises an inner cylinder (21) and a protective cylinder (22) which are arranged inside and outside, and the top of the inner cylinder (21) is welded and fixed to the flexible elbow (13); the flexible elbow (13) can rotate 360 ​​degrees.

2. The high pressure faucet grouting tool according to claim 1, Features: The high-pressure faucet grouting tool is installed on the drilling platform operating surface (5).

3. The high pressure faucet grouting tool according to claim 1, Features: The bottom surface of the elbow (11) is not lower than the top surface of the sleeve (4).

4. The high pressure faucet grouting tool according to claim 1, Features: The inner tube (21) and the protective tube (22) are both formed with a plurality of grooves (24) arranged along the axis, and the inner tube (21) and the protective tube (22) are fixed to each other by means of a limit pin (23) passing through the grooves (24) on the inner tube (21) and the protective tube (22).

5. The high pressure faucet grouting tool according to claim 1, Features: The flexible elbow (13) is made of carbon steel; the inner tube (21) and the protective tube (22) are both made of steel pipes.

6. The high pressure faucet grouting tool according to claim 4, Features: The limit pin (23) is a straight groove elastic pin made of 304 stainless steel and has chamfered ends.

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