CN203531811U - Storing and stirring integrated mud sand mulling device - Google Patents

Abstract

The utility model relates to a mud and sand mixing device integrating storage and stirring, which is composed of a stirring tank, a storage tank and a stirrer. The device is composed of a steel cylinder and a steel cuboid cavity through welding. The cavity at the front end of the cylinder is a stirring pool, and the cavity at the back end is a storage pool. There is a stirrer support on the stirring tank, an opening connected with the storage tank is opened at the bottom, and a short mud outlet pipe is provided at the front. The bottom of the storage tank is an inclined bottom plate, and the rear part is equipped with a short mud inlet pipe. The stirrer is placed on the stirrer support, and the stirring blades extend into the stirring pool. The device can realize the mixing of mud with sand or chemicals, and can meet the needs of mud with different performances on site in time. The device occupies a small area and has high working efficiency. If necessary, multiple units can be connected in parallel to work at the same time to meet the large demand for mud.

Description

A mud and sand mixing device integrating storage and mixing

technical field

The utility model belongs to the field of mud storage and sand mixing, in particular to a mud mixing device integrating storage and mixing.

Background technique

In drilling engineering, mud occupies an extremely important position as a conventional drilling fluid. In addition to carrying bottomhole cuttings to the ground in time, it also has the functions of protecting the well wall, controlling the pressure in the well, cooling and lubricating the drill bit and drill string, etc., so it is known as It is the "blood" of drilling engineering. In the drilling simulation experiment, in order to evaluate the rock-carrying flow characteristics of the mud, it is often necessary to artificially add sand and fully mix it in the experiment. At this time, a stirring device is needed. In the process of mud circulation, a storage device is required to recover the mud returned from the wellhead and prepare for re-injection. Therefore, it is necessary to design a device integrating storage and mixing, which can realize the above functions at the same time, save space, and save the time of mud and sand mixing cycle.

In the actual drilling process, in order to balance the formation pressure, it is often necessary to add various weighting agents or certain chemical agents to the mud to change the density or composition of the mud. When adding these ingredients, the mud needs to be fully stirred so that these ingredients can fuse and react with the mud. If the amount of mud decreases due to downhole leakage during the drilling process, it is necessary to replenish the mud in time. Using the integrated storage and mixing device can not only realize the rapid configuration of the mud, but also ensure the continuous circulation of the mud without stopping the drilling and waiting. time and cost.

At present, the storage and mixing of mud on site are mostly carried out separately. This separate mode not only increases the equipment cost and equipment space occupation rate, but also prolongs the mud circulation operation time. When the mud needs to be supplemented, it will directly affect the efficiency of the entire operation. Therefore, the development of a mud and sand mixing device with integrated storage and mixing functions can not only improve work efficiency, but also reduce the site space occupancy.

Contents of the invention

The problem to be solved by the utility model is to provide a mud and sand mixing device with reliable performance, simple device, space saving and improved working efficiency for the deficiencies in the mud storage and stirring device in the existing drilling engineering .

In order to achieve the above object, the utility model adopts the following technical solutions:

A mud and sand mixing device integrating storage and mixing is composed of three parts: a mixing tank, a storage tank and a stirrer. The main body of the sand mixing device is a box without a cover, which is composed of a steel cylinder and a steel cuboid cavity by welding, wherein the cylinder is tangent to the cuboid, and the diameter of the cylinder is equal to the width of the cuboid. The height of the cylinder is equal to the height of the cuboid. The welded sand mixing device is divided into two cavities, the front cylindrical cavity is a stirring tank, and the rear cavity is a storage tank.

Stirrer brackets are installed on both sides of the upper end surface of the stirring tank, and an opening communicating with the storage tank is opened at the bottom, and the upper end surface of the opening is an inclined plane parallel to the inclined bottom plate of the storage tank. The inclined bottom plate of the storage tank extends into the bottom of the stirring tank, and its top edge is connected with the diameter of the circular surface at the bottom of the stirring tank. There is a short mud outlet pipe at the front of the mixing tank.

The bottom of the storage tank has an inclined bottom plate at a certain angle with the horizontal plane, so that the mud in the storage tank enters the mixing tank under the action of gravity. There is a mud inlet stub at the rear of the storage tank.

The stirrer is composed of a connecting rod and a curved cross stirring blade, which is placed on the stirrer bracket at the upper end of the stirring tank, and the stirring blade extends into the stirring tank.

The utility model has the following advantages due to the adoption of the above technical scheme:

1. The utility model can realize the mixing and mixing of mud, sand and other additives, and can meet the needs of mud with different performances on site in time;

2. The utility model occupies a small area and has high working efficiency. If necessary, multiple devices can be connected in parallel to work at the same time to meet the demand for a large amount of mud.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is a schematic cross-sectional view of the utility model

Fig. 3 is the structural representation of the utility model agitator

Fig. 4 is a sectional view of A-A of Fig. 1

Among them: 1. Sand mixing device; 2. Stirring tank; 3. Storage tank; 4. Stirrer support; 5. Stirrer; 6. Inclined bottom plate; 7. Short mud inlet pipe; Connecting rod; 10, mixing blade.

Detailed ways

The specific implementation of the utility model will be further described below in conjunction with the accompanying drawings.

The utility model relates to a mud and sand mixing device 1 integrating storage and stirring, which is composed of a stirring tank 2 , a storage tank 3 and a stirrer 5 . As shown in Figure 1, the main body of the sand mixing device 1 is a box without a cover, which is assembled by welding a steel cylinder and a steel cuboid cavity, wherein the cylinder is tangent to the cuboid, and the cylinder The diameter of the cylinder is equal to the width of the cuboid, and the height of the cylinder is equal to the height of the cuboid. The welded sand mixing device 1 is divided into two cavities, the cylindrical cavity at the front end is a stirring tank 2 , and the cavity at the rear end is a storage tank 3 .

As shown in Fig. 1, Fig. 2, and Fig. 4, agitator supports 4 are installed on both sides of the upper end surface of the stirring tank 2, and an opening communicating with the storage tank 3 is arranged at the bottom, and the upper end surface of the opening is an inclined plane, which is connected to the storage tank. 3 inclined bottom plates 6 are parallel. The inclined bottom plate 6 of the storage tank 3 extends into the bottom of the stirring tank 2, and its top edge is connected with the diameter of the circular surface at the bottom of the stirring tank 2. The front part of the stirring tank 2 is provided with a short mud outlet pipe 8 .

As shown in Fig. 1, Fig. 2 and Fig. 4, the bottom of the storage tank 3 has an inclined bottom plate 6 at a certain angle with the horizontal plane, so that the mud in the storage tank 3 enters the mixing tank 2 under the action of gravity. A short mud inlet pipe 7 is provided at the rear of the storage tank 3 .

As shown in FIG. 3 , the agitator 5 is composed of a connecting rod 9 and a curved cross agitating blade 10 , placed on the agitator support 4 at the upper end of the agitating tank 2 , and the agitating blade 10 extends into the agitating tank 2 .

Specific examples:

The short mud inlet pipe 7 of a mud mixing device 1 integrating storage and mixing is connected to the upstream mud hose, so that the mud returned from the wellhead can enter the storage tank 3 through the short mud inlet pipe 7 . The mud entering the storage tank 3 will flow into the stirring tank 2 through the bottom opening of the stirring tank 2 along the inclined bottom plate 6 under the action of gravity. Since the top of the stirring tank 2 has no cover, sand or other agents can be added to the stirring tank 2 from the top. The added sand or medicament is mixed with the mud under the action of the agitator 5 . The mud outlet short pipe 8 at the end of the stirring tank 2 is connected with the outlet hose, and the outlet hose leads to the mud pump. Under the suction action of the mud pump, the mixed mud will flow out from the mud outlet short pipe 8. The mud sand mixing device 1 realizes the functions of mud sand mixing and circulation storage.

Claims (1)

1. A mud and sand mixing device integrating storage and stirring, characterized in that: the mud and sand mixing device (1) is composed of three parts: a stirring tank (2), a storage tank (3), and an agitator (5) ; The main body of the sand mixing device (1) is a box without a cover, which is composed of a steel cylinder and a steel cuboid cavity by welding, wherein the cylinder is tangent to the cuboid, and the diameter of the cylinder is equal to the width of the cuboid , the height of the cylinder is equal to the height of the cuboid; the welded sand mixing device (1) is divided into two cavities, the cylinder cavity at the front end is the mixing pool (2), and the cavity at the rear end is the storage pool (3) ; Stirrer brackets (4) are installed on both sides of the upper surface of the stirring tank (2), and an opening communicating with the storage tank (3) is opened at the bottom. Parallel; the inclined bottom plate (6) of the storage tank (3) extends into the bottom of the mixing tank (2), and its top edge is connected with the diameter of the circular surface at the bottom of the mixing tank (2); the front part of the mixing tank (2) is provided with a short mud outlet pipe (8); the bottom of the storage tank (3) has an inclined bottom plate (6) at a certain angle to the horizontal plane, so that the mud in the storage tank (3) enters the stirring tank (2) under the action of gravity; the storage tank (3) ) is provided with a short mud inlet pipe (7) at the rear; the agitator (5) is composed of a connecting rod (9) and a curved surface cross mixing blade (10), and is placed on the agitator bracket (4) at the upper end of the mixing tank (2) ), and the stirring blade (10) extends into the stirring pool (2). the

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