Slurry circulating device

Abstract

The utility model relates to the technical field of geotechnical investigation, and discloses a slurry circulating device which comprises a slurry pool, a slurry pump, a drilling platform, a fixed slurry pipe, a suspended slurry pipe, a drilling pipe, a first slurry pipe and a second slurry pipe. The mud pump is connected with the mud pool, the first mud pipe is connected with the drilling pipe and the mud pump, the second mud pipe is connected with the suspension mud pipe and the mud pool, and in addition, the suspension mud pipe is fixedly connected with the drilling platform and connected with the fixed mud pipe in a sleeved mode so that mud leaked during drilling can be drained into the mud pool. The drilling pipe is connected with the fixed mud pipe in a sleeved mode, so that mud in a mud pool can be conveyed into the drilling pipe, the problem that mud circulation is unstable due to the influence of water area hydrological conditions during drilling in the water area environment can be solved, and the environmental protection problem caused by mud leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil exploration, in particular to a mud circulation device. Background Art

[0002] Drilling is a mechanical engineering technology that uses deep drilling to exploit underground or seabed natural resources, or to take real-life cross-sections of strata and extract physical samples for experiments to obtain relevant data, etc. However, when drilling underwater strata in lakes and seas, traditional drilling technology causes serious pollution and the consumed water resources cannot be recycled, especially the mud that leaks during the drilling process, which can easily cause environmental problems.

[0003] In the prior art, there is a solution for circulating mud, such as a mud circulation system for water drilling construction disclosed in publication number CN112502651A, which includes a filter barrel and a platform, the filter barrel is installed on the platform, and a vibrating screen is provided at the upper end of the filter barrel, one side of the vibrating screen is hinged to one side of the filter barrel through a hinge, and the other side of the vibrating screen is placed on the other side of the filter barrel, and a mud suction pump sucks mud mixed with impurities and guides the mud into the vibrating screen. The circulation system has a vibrating screen that can filter mud mixed with sand and gravel to achieve sediment separation, and the filtered mud can be recycled, but when used in aquatic environment drilling, the circulation system is easily affected by hydrological conditions such as tides, flood season high tides, etc., and it is difficult to maintain a stable mud circulation. Utility Model Content

[0004] In order to overcome the technical defect of unstable mud circulation caused by the hydrological conditions during drilling in lake and sea water environments, the utility model provides a mud circulation device, which can maintain stable mud circulation during drilling. In order to solve the above problems, the utility model is implemented according to the following technical solutions:

[0005] The utility model provides a mud circulation device, comprising a mud pool and a mud pump, wherein the mud pool is connected to the mud pump, and the mud circulation device further comprises a drilling platform, a fixed mud pipe, a suspended mud pipe, a drill pipe, a first mud pipe and a second mud pipe, wherein:

[0006] The drilling platform is anchored on the water surface and can float up and down with the rise and fall of the tide;

[0007] The fixed mud pipe is inserted into the underwater stratum;

[0008] One end of the suspended mud pipe is sleeved with the fixed mud pipe, and the pipe surface of the suspended mud pipe is fixedly connected to the drilling platform;

[0009] The drill pipe is sleeved with the fixed mud pipe, and drilling can be performed in the drill pipe;

[0010] One end of the first mud pipe is connected to the drill pipe and the other end is connected to the mud pump;

[0011] One end of the second mud pipe is connected to the suspended mud pipe and the other end is connected to the mud pool.

[0012] In some preferred embodiments, the inner wall of the suspended mud pipe fits with the outer wall of the fixed mud pipe, and the outer wall of the drill pipe fits with the inner wall of the fixed mud pipe.

[0013] In some preferred embodiments, a plurality of sealing rings greater than one are provided between the suspended mud pipe and the fixed mud pipe.

[0014] In some preferred embodiments, the pipe surface where the suspended mud pipe is fixedly connected to the drilling platform is higher than the top surface of the drilling platform.

[0015] In some preferred embodiments, a mud overflow port is provided on the suspended mud pipe, the mud overflow port is connected to one end of the second mud pipe, and the other end of the second mud pipe is connected to the mud pool.

[0016] In some preferred embodiments, the mud overflow is higher than the mud pool.

[0017] In some preferred embodiments, a floating mechanism is provided at the bottom of the drilling platform, and the floating mechanism is made of a material with floating ability.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model anchors the drilling platform on the water surface, and the drilling platform is fixedly connected to the suspended mud pipe, so that the suspended mud pipe and the drilling platform can float up and down with the change of water level while the specific working position of the drilling equipment does not change, thereby ensuring that even under the influence of tides, the mud circulation device can maintain stable circulation of mud during drilling.

[0020] The utility model connects the mud pool and the suspended mud pipe through the second mud pipe, and the mud overflow port of the suspended mud pipe is higher than the mud pool, so that the mud water generated in the drilling process can be discharged into the mud pool; the mud pump and the drill pipe are connected through the first mud pipe, so that the mud sewage contained in the mud pool can be transported to the drill hole of the drilling equipment in the drill pipe. Therefore, the utility model can ensure that the mud generated in the drilling process does not directly contact the water environment and can be recycled for drilling.

[0021] In summary, the utility model can maintain stable circulation of mud during drilling, and can recycle mud and sewage generated during the drilling process to reduce the pollution of the mud and sewage to the aquatic environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0024] Figure 2 The utility model is a three-dimensional Figure 2 ;

[0025] Figure 3 It is a structural schematic diagram of the utility model;

[0026] In the figure:

[0027] 1. Mud pump; 2. Mud pool; 3. First mud pipe; 4. Second mud pipe; 5. Drill pipe; 6. Suspended mud pipe; 7. Fixed mud pipe; 8. Sealing plug; 9. Drilling platform; 10. Floating mechanism. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] In the description of the present invention, it should be understood that the terms "above", "one side", "bottom", "both ends", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and the like 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] In order to solve the problem of unstable circulation of drilling mud caused by the influence of hydrological conditions such as tidal high tide during flood season when drilling work is carried out in aquatic environment, the utility model provides a mud circulation device which can maintain the stability of mud circulation during drilling when the drilling operation is affected by hydrological conditions.

[0032] like Figure 1-2 As shown, the utility model provides a mud circulation device, including a mud pool 2 and a mud pump 1, the mud pool 2 is connected to the mud pump 1, and the mud circulation device also includes a drilling platform 9, a fixed mud pipe 7, a suspended mud pipe 6, a drill pipe 5, a first mud pipe 3 and a second mud pipe 4, wherein:

[0033] The drilling platform 9 is anchored on the water surface and can float up and down with the rise and fall of the tide. The fixed mud pipe 7 is inserted into the underwater stratum. One end of the suspended mud pipe 6 is sleeved with the fixed mud pipe. The pipe surface of the suspended mud pipe 6 is fixedly connected to the drilling platform 9. The drill pipe 5 is sleeved with the fixed mud pipe 7. Drilling can be carried out in the drill pipe 5. One end of the first mud pipe 3 is connected to the drill pipe 5 and the other end is connected to the mud pump 1. One end of the second mud pipe 4 is connected to the suspended mud pipe 6 and the other end is connected to the mud pool 2.

[0034] In the mud circulation device of the utility model of the present application, considering that drilling and detection will be performed at fixed positions when drilling in water environments such as lakes and seas, the drilling platform 9 is anchored on the water surface and can float up and down with the rise and fall of the tide, which can ensure that the drilling platform 9 is not affected by water flow and hydrological conditions and is anchored on the same water surface at different times. The suspended mud pipe 6, which is sleeved with the fixed mud pipe 7 and fixedly connected to the drilling platform 9 on the pipe surface, can float up and down with the drilling platform 9. Further, the drilling work in the drill pipe 5 can be carried out continuously and stably.

[0035] On the other hand, one end of the first mud pipe 3 is connected to the drill pipe 5 and the other end is connected to the mud pump 1, so that the mud can be continuously transported into the drilling operation. One end of the second mud pipe 4 is connected to the suspended mud pipe 6 and the other end is connected to the mud pool 2, so that the mud overflowed from drilling can be continuously discharged into the mud pool 2, and finally the purpose of maintaining stable circulation of mud in drilling can be achieved when the drilling operation is affected by hydrological conditions.

[0036] In some preferred embodiments, the inner wall of the suspended mud pipe 6 is in contact with the outer wall of the fixed mud pipe 7, the outer wall of the drill pipe 5 is in contact with the inner wall of the fixed mud pipe 7, a number of sealing rings 8 greater than 1 is provided between the suspended mud pipe 6 and the fixed mud pipe 7, and a number of sealing rings 8 greater than 1 is provided between the fixed mud pipe 7 and the drill pipe 5.

[0037] In the mud circulation device of the utility model of the present application, considering that the mud leaking during the drilling process in the water environment can easily cause environmental problems, a number of sealing rings 8 greater than 1 are provided between the suspended mud pipe 6 and the fixed mud pipe 7, and a number of sealing rings 8 greater than 1 are provided between the fixed mud pipe 7 and the drill pipe 5. This can prevent mud leakage and thus pollute the water area, and can to a certain extent avoid wear between the fixed mud pipe 7 and the suspended mud pipe 6, and between the fixed mud pipe 7 and the drill pipe 5, thereby extending the service life of the fixed mud pipe 7, the suspended mud pipe 6 and the drill pipe 5.

[0038] In some preferred embodiments, the pipe surface where the suspended mud pipe 6 is fixedly connected to the drilling platform 9 is higher than the top surface of the drilling platform 9, and a mud overflow is opened on the suspended mud pipe 6. The mud overflow is connected to one end of the second mud pipe 4, and the other end of the second mud pipe 4 is connected to the mud pool 2, and the mud overflow is higher than the mud pool 2.

[0039] In some embodiments of the mud circulation device of the utility model of the present application, the mud pool 2 is arranged on the drilling platform 9. Considering that the mud discharged from the mud overflow to the mud pool 2 is the mud that the suspended mud pipe 6 cannot accommodate and overflows, the top of the mud pool 2 should be lower than the mud overflow, and the pipe surface where the suspended mud pipe 6 is fixedly connected to the drilling platform 9 is higher than the top surface of the drilling platform 9. Setting the mud pool 2 on the drilling platform 9 can ensure that the mud pool 2 is always lower than the suspended mud pipe 6, and save the space and cost of setting up the mud pool 2 in the water area.

[0040] In some preferred embodiments, a floating mechanism 10 is disposed at the bottom of the drilling platform 9. The floating mechanism 10 may be made of materials having floating ability such as a foam buoyancy box or a foam floating board.

[0041] In the mud circulation device of the utility model of the present application, the drilling platform 9 can float up and down with the influence of the hydrological conditions of the water area, which is the core of the stable circulation of mud during drilling. A floating mechanism 10 is set at the bottom of the drilling platform 9, which can enable the drilling platform 9 to float up and down with the influence of the hydrological conditions of the water area. The floating mechanism 10 can use materials with floating ability such as foam buoyancy boxes or foam floats.

[0042] The working principle of a mud circulation device of the utility model is:

[0043] A mud circulation device can solve the problem of unstable mud circulation caused by the influence of hydrological conditions in the water area when drilling in a water environment. The device comprises a mud pool, a mud pump, a drilling platform, a fixed mud pipe, a suspended mud pipe, a drill pipe, a first mud pipe and a second mud pipe, wherein the drilling platform is anchored on a water surface and can float up and down with the change of the water area, the mud pump is connected to the mud pool, the first mud pipe is connected to the drill pipe and the mud pump respectively, and the second mud pipe is connected to the suspended mud pipe and the mud pool respectively. In addition, the suspended mud pipe is fixedly connected to the drilling platform and sleeved with the fixed mud pipe so that the mud leaked from drilling can be discharged into the mud pool, and the drill pipe is sleeved with the fixed mud pipe so that the mud in the mud pool can be transported to the drill pipe, thereby achieving the purpose of stable circulation of the mud in drilling when affected by the hydrological conditions.

[0044] For other structures of a mud circulation device of this embodiment, refer to the prior art.

[0045] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mud circulation device, comprising a mud pool and a mud pump, wherein the mud pool is connected to the mud pump, and characterized in that: The mud circulation device also includes: A drilling platform, which is anchored on the water surface and can float up and down with the rise and fall of the tide; A fixed mud pipe, wherein the fixed mud pipe is inserted into the underwater formation; A suspended mud pipe, one end of which is sleeved with the fixed mud pipe, and the pipe surface of the suspended mud pipe is fixedly connected to the drilling platform; A drill pipe, the drill pipe is sleeved with the fixed mud pipe, and drilling can be performed in the drill pipe; a first mud pipe, one end of which is connected to the drill pipe and the other end of which is connected to the mud pump; A second mud pipe, one end of which is connected to the suspended mud pipe and the other end of which is connected to the mud pool.

2. The mud circulation device according to claim 1, characterized in that: The inner wall of the suspended mud pipe is in contact with the outer wall of the fixed mud pipe, and the outer wall of the drill pipe is in contact with the inner wall of the fixed mud pipe.

3. The mud circulation device according to claim 2, characterized in that: A plurality of sealing rings greater than 1 are arranged between the suspended mud pipe and the fixed mud pipe, and a plurality of sealing rings greater than 1 are arranged between the fixed mud pipe and the drill pipe.

4. The mud circulation device according to claim 1, characterized in that: The pipe surface where the suspended mud pipe is fixedly connected to the drilling platform is higher than the top surface of the drilling platform.

5. The mud circulation device according to claim 1, characterized in that: The suspended mud pipe is provided with a mud overflow port, the mud overflow port is connected to one end of the second mud pipe, and the other end of the second mud pipe is connected to the mud pool.

6. The mud circulation device according to claim 5, characterized in that: The mud overflow is higher than the mud pool.

7. The mud circulation device according to claim 1, characterized in that: A floating mechanism is arranged at the bottom of the drilling platform, and the floating mechanism is made of a material with floating ability.

Images