CN2459439Y - Turbine sand filling tool - Google Patents

Abstract

The utility model discloses a turbine sand filling tool, comprising a flushing pipe (1), a central pipe (2) and a wire-wound screen pipe (3). A turbine (6) having blades (4) arranged to rotate around an axis at an angle of 0° to 90° is installed on the flushing pipe (1) to generate strong turbulence in the liquid flow. The turbine can generate turbulence in the liquid flow, and the filled gravels are arranged closely, so as to achieve high compactness and high efficiency. The utility model is applied to the sand prevention process technology of the petroleum industry, and can also be applied to other similar processes requiring compact sand filling.

Description

Turbo Sand Pack Tool

The utility model relates to a sand control construction tool for an oil well, in particular to a turbine sand filling tool used in the sand control technology for gravel filling of wire-wrapped screen pipes.

At present, in the supporting tools used in the sand control process of gravel packing with wire-wrapped screens in the oil field, the flushing pipe adopts a straight pipe structure, and the packed gravel is in a natural sedimentation state by its own gravity, so there is a problem that the filled gravel is loose. , loose arrangement, poor sand control effect and other issues.

The purpose of this utility model is to provide a turbine sand filling tool, which can overcome and avoid the shortcomings of the above-mentioned prior art, and has the ability to stir the mortar, generate strong turbulent flow, and rearrange the accumulated gravel to achieve filling. The purpose of compactness and remarkable sand control effect.

The purpose of this utility model is achieved like this:

A turbine sand packing tool consisting of a flushing pipe, a base pipe and a wire-wrapped screen, on which a turbine is mounted to rotate the fluid. It strongly agitates the deposited gravel, making it turbulent and rearranged to achieve a dense filling.

The purpose of this utility model can also be achieved through the following measures:

The turbine is a tubular object with blades, and the blades are arranged in a rotating structure of 0° to 90°. The turbine is sleeved on the outer surface of the flushing pipe and is in sliding fit with it. The rotation of the turbine agitates the liquid flow and creates turbulence, making the gravel pack dense and efficient.

The descriptions of the attached drawings are as follows:

Fig. 1 is the structural diagram of the first embodiment of the present utility model;

Fig. 2 is a structural diagram of another embodiment of the present invention.

The utility model is described in further detail below in conjunction with the accompanying drawings:

As shown in Fig. 1 , it is the first embodiment, the wire-wrapped screen 3 is set outside the central pipe 2, the flushing pipe 1 is located at the axis of the central pipe 2, and the turbine 6 is set on the outer surface of the flushing pipe 1 in a sliding fit. The turbine 6 has blades 4 rotated at 0° to 90°, and the turbine 6 drives the blades to rotate, which can generate strong turbulence in the liquid flow, stir the gravel to rearrange, achieve the purpose of dense filling, and improve the sand control effect. The utility model is lowered in the sleeve pipe 5 along with supporting tools.

As shown in FIG. 2 , it is the second embodiment. The turbine 6 has blades 4 whose inner and outer angles are opposite, and is suspended on the flushing pipe 1 through a male-female structure hanging angle device 7 , and is in a sliding fit. The fluid in the flushing pipe 1 of this structure has an effect on its inner blades, and at the same time, the liquid flow outside the flushing pipe also acts on its outer blades. Therefore, a stronger turbulent flow phenomenon can be generated, and the gravel is stirred more strongly, so that the gravel is filled. Sand control is more effective.

Compared with the prior art, the utility model has the following advantages:

It breaks the free settlement mode of gravel packing in the prior art, makes the gravels closely arranged in the state of rotating turbulent flow, and the filling is dense, and the effect is remarkable.

Claims (4)

1. A turbine sand filling tool, comprising a flushing pipe (1), a center pipe (2) and a wire-wrapped screen (3), characterized in that a turbine (6) is installed on the flushing pipe (1). 2. The turbine sand packing tool according to claim 1, characterized in that the turbine (6) is a tubular body with blades (4). 3. The turbine sand packing tool according to claim 1 or 2, characterized in that the blades (4) on the turbine (6) are arranged in a rotational arrangement of 0°-90°. 4. The turbine sand filling tool according to claim 1 or 2, characterized in that the turbine (6) is sleeved on the outer surface of the flushing tube (1) and is in a sliding fit with it.

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