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Wax-proof and scale-proof water injection manifold integrated with filter and valve group

A technology for filters and water injection pipes, which is applied in the direction of fixed filter element filters, filtration separation, chemical instruments and methods, etc. It can solve the problems of easy fouling of filters, etc., so as to improve service life, prolong service life, and improve water flow resistance The effect of impact ability

Active Publication Date: 2022-08-09
龙沃科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to design a new type of water injection manifold, trying to integrate the filter and valve group together, and solve the problem that the existing filter is easy to scale

Method used

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  • Wax-proof and scale-proof water injection manifold integrated with filter and valve group
  • Wax-proof and scale-proof water injection manifold integrated with filter and valve group
  • Wax-proof and scale-proof water injection manifold integrated with filter and valve group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, this embodiment includes a water inlet pipe 2, a filter and a number of water outlet pipes 9, the water inlet pipe 2 and the water outlet pipe 9 are respectively connected to the filter, the filter is provided with a filter screen 3, and the water inlet pipe 2 is connected in series with the water inlet A water outlet valve 10 is connected in series with the valve 1 and the water outlet pipe 9 . The above is a conventional structure, which is not repeated here.

[0038] like figure 1 As shown, the housing 4 of the filter and the filter screen are both cylindrical structures, and the filter screen 3 is fixedly inserted in the housing 4 and is coaxial with the housing 4 . The water inlet pipe 2 is connected to one end of the casing 4 and the filter screen 3 , and the water outlet pipe 9 is connected to the side of the casing 4 . During operation, the water enters the casing 4 from the water inlet pipe 2 and enters the inner side of the filter sc...

Embodiment 2

[0046] The difference between this embodiment and the first embodiment is that the descaling cylinder 5 and the filter screen 3 can rotate relative to each other.

[0047] In order to prevent the water flow from eroding the fixed position on the descaling cylinder 5, the present invention makes the descaling cylinder 5 rotate automatically by setting the transmission ring 13, the short pin 12 and the guide slideway 14. The inner wall of 5 is evenly eroded by the water flow, which improves the ability of the descaling cylinder 5 to withstand the impact of the water flow, thereby further improving the overall service life of the equipment. The specific structure is as follows:

[0048] like image 3 As shown, the descaling cylinder 5 further includes a cylinder body 19 and a rotating sleeve 18, and the rotating sleeve 18 is sleeved on the outside of the cylinder body 19 and can rotate smoothly. like image 3 , 4 As shown in Fig. 8, a transmission ring 13 is provided between ...

Embodiment 3

[0053] The difference between this embodiment and the first embodiment is that:

[0054] like Figure 5 As shown, an impeller 15 is installed on the reciprocating screw 7, the impeller 15 is located at the water inlet end of the filter, the impeller 15 rotates under the impact of the water flow, and the rotational power of the reciprocating screw 7 comes from the rotation of the impeller 15, and then The reciprocating screw 7 is driven to rotate, so as to realize the automatic reciprocating motion of the descaling cylinder 5 without external force driving. In actual use, it is necessary to pay attention to the selection of the helix angle of the impeller 15. The helix angle can be as small as possible, so that the moving speed of the descaling cylinder 5 is the slowest, and the mechanical wear is minimized under the condition of ensuring the normal operation of the descaling operation.

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Abstract

An anti-wax and anti-scale water injection manifold integrated with a filter and a valve group relates to the field of oilfield water injection equipment and comprises a water inlet pipe, the filter and a plurality of water outlet pipes, the water inlet pipe and the water outlet pipes are respectively connected onto the filter, a filter screen is arranged in the filter, a water inlet valve is connected onto the water inlet pipe in series, and a water outlet valve is connected onto the water outlet pipe in series; the shell of the filter and the filter screen are both of a cylindrical structure, the filter screen is fixedly inserted into the shell and is coaxial with the shell, the water inlet pipe is connected to one end of the shell and one end of the filter screen, the water outlet pipes are connected to the side face of the shell, and the water outlet pipes are arranged in a row at equal intervals in the axial direction of the shell; the filter screen is formed by machining a rigid pipe, a long-strip-shaped narrow slit serving as a filter hole is machined in the side wall of the filter screen, and the length direction of the narrow slit is consistent with the axis direction of the filter screen. Through the action of the reciprocating lead screw, the descaling sheet reciprocates in the filtering hole, so that the cleaning of scales in the filtering hole is realized.

Description

technical field [0001] The invention belongs to the field of oilfield water injection equipment, in particular to an anti-wax and anti-scaling water injection manifold integrated with a filter and a valve group. Background technique [0002] In the middle and late stages of oilfield development, it is often necessary to inject water into the formation through water injection wells. When injecting water, it is necessary to divide the main water pipe into several branches through the water injection manifold, so as to inject water into multiple water injection wells at the same time. Water needs to be filtered through a filter before entering the water injection manifold. [0003] At present, the biggest problem of the filter used in the water injection manifold is that the filter screen of the filter is easy to scale. With the accumulation of scale, the filter holes on the filter screen will be blocked, which will affect the filtration efficiency of the filter. In addition,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B17/00B01D29/11B01D29/64
CPCE21B43/20E21B17/00B01D29/11B01D29/64Y02A20/00
Inventor 单成明冯向杰潘丽杰张玲玲王鹏张鹤唐云飞刘俐
Owner 龙沃科技开发有限公司