CN203452756U

CN203452756U - Simple two-stage filter for separate injection well head

Info

Publication number: CN203452756U
Application number: CN201320517501.8U
Authority: CN
Inventors: 朱安江; 赵令学; 孙明克; 陈其亮; 陈子华
Original assignee: China Petroleum and Natural Gas Co Ltd
Current assignee: China Petroleum and Natural Gas Co Ltd
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-02-26
Anticipated expiration: 2023-08-23

Abstract

The utility model relates to a simple two-stage filter for a separate injection well head, which belongs to the technical field of oilfield separate injection well heads. Two screw holes are formed in an inner cavity of one end of an oil nozzle, one screw hole is connected with a first filtering device, the other screw hole is connected with a second filtering device, and filter elements of the first filtering device and the second filtering device are V-shaped cutting seams. The simple two-stage filter has the advantages that the simple two-stage filter is used for preventing impurities and sediments generated in a surface pipeline or a water injection system from entering into a wellhole at the separate injection well head without fine filtration, the impurities of which particle diameters are greater than the diameters of the filter elements can be effectively stopped at the well head, so that a separate injection structure can be normally operated, and the testing and adjusting work can be smoothly performed.

Description

A kind of dispensing well well head twin-stage Simple filter

Technical field

The utility model relates to a kind of dispensing well well head twin-stage Simple filter, belongs to oil field dispensing well well head technical field.

Background technology

Water injection well is in normal the injecting process, the uneasy dress of most of well heads filter, in normal the injecting process, due to pipeline along the deposition of various impurity in journey and the corrosion and scaling of pipeline, peel off, can form certain particle, thereby after entering pit shaft, cause the phenomenons such as water nozzle obstruction and instrument jam, can impact the normal operation of dispensing structure and subsurface choke, cause normally water distribution.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of dispensing well well head twin-stage Simple filter.

A dispensing well well head twin-stage Simple filter, one end inner chamber of oil nozzle has 2 screws, and 1 screw connects the first filter, and another 1 screw connects the second filter; The filter core of the first filter is V-arrangement Ge Sew, and the filter core of the second filter is V-arrangement Ge Sew.

The utility model has the advantages that the dispensing water injection well of fine filtering be not installed, the utility model is installed, be used for preventing that the impurity and the sediment that in surface line or flood pattern, produce from entering pit shaft, the utility model at well head can effectively stop the impurity of particle diameter hyperfiltration core diameter at well head, thereby make the normal operation of dispensing structure, guarantee to survey carrying out smoothly of tune work.

Accompanying drawing explanation

When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:

Fig. 1 is structural representation of the present utility model.

Below in conjunction with drawings and Examples, the utility model is further illustrated.

The specific embodiment

Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.

Embodiment 1: as shown in Figure 1, a kind of dispensing well well head twin-stage Simple filter, one end inner chamber of oil nozzle 1 has 2 screws, and 1 screw connects the first filter 2, and another 1 screw connects the second filter 3;

The filter core of the first filter 2 is V-arrangement Ge Sew, and the filter core of the second filter 3 is V-arrangement Ge Sew.

The utility model is arranged in the resistance oil nozzle sleeve of well head, in the agent structure of strainer, arrange two-layer, can require filter core diameter control in certain limit according to dispensing, the filtration of the first filter 2 and the second filter 3 differs 0.5 millimeter differential, the V-type slot adopting, can effectively impurity particle be stopped, and can conveniently realize backwash.

As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.

Claims

1. a dispensing well well head twin-stage Simple filter, is characterized in that one end inner chamber of oil nozzle has 2 screws, and 1 screw connects the first filter, and another 1 screw connects the second filter; The filter core of the first filter is V-arrangement Ge Sew, and the filter core of the second filter is V-arrangement Ge Sew.