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Porous metal screen tube and making method thereof

A technology of porous metal and manufacturing method, which is applied in the fields of earthwork drilling, production of fluids, wellbore/well components, etc., can solve the problems of sand control failure of screen tubes, cracking failure of welded joints, etc., so as to prolong sand control operation time and improve oil production efficiency. , the use of good effect

Pending Publication Date: 2019-11-05
益阳市菲美特新材料有限公司
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Problems solved by technology

At present, the commonly used sand control screens are mainly welded screens. Welded screens are made of porous metal plates by bending and welding. This kind of screen has achieved good results in oilfield mining, but welded screens are used in harsh construction environments. The welded joints are the first to crack and fail under complex stress conditions, which will directly lead to the failure of screen sand control

Method used

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  • Porous metal screen tube and making method thereof

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Effect test

Embodiment

[0020] refer to figure 1 , the porous metal screen of this embodiment is a seamless porous metal screen 1.

[0021] The seamless porous metal screen 1 is made of pure nickel.

[0022] The outer diameter of the seamless porous metal screen 1 is 156.7mm, the inner diameter is 144.7mm, and the length of the screen is 500mm. Of course, it can also be made into products of other sizes, such as a length of 1000mm.

[0023] The manufacturing method of the porous metal screen comprises the following steps:

[0024] The sponge is roughened, cleaned, sensitized, activated, and chemically nickel-plated to deposit a layer of metallic nickel, and then the sponge deposited with metallic nickel is placed on the hanger, firstly with 2-4A / dm 2 Electroplating at a current density of 30 minutes, take out the inner support tube of the hanger, and then use 1-2A / dm 2 Electroplating at a current density of 15 hours, remove the product from the hanger and wash it fully until the washing liquid is ...

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Abstract

The invention discloses a porous metal screen tube and a making method thereof. The porous metal screen tube is a seamless porous metal screen tube and is made of pure nickel. The invention further comprises a making method of the porous metal screen tube. The porous metal screen tube with the property better than that of a slotted screen tube is made, the screen tube sand prevention work time canbe achieved, the oil well exploitation quantity can be improved, and the work cost is reduced.

Description

technical field [0001] The invention relates to a porous metal screen pipe and a manufacturing method thereof. Background technique [0002] Sand control screens are the main sand control equipment in oilfield exploitation, and there are various types of screens. At present, the commonly used sand control screens are mainly welded screens. Welded screens are made of porous metal plates by bending and welding. This kind of screen has achieved good results in oilfield mining, but welded screens are used in harsh construction environments. The welded joints are the first to crack and fail under the conditions of complex stress and complex stress, which will directly lead to the failure of sand control of the screen. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a porous metal screen that has no welding joints, no cracking of the welding joints, and can improve oil recovery efficiency and its manufacturing method....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/02C25D1/08E21B43/08
CPCC25D1/02C25D1/08E21B43/08
Inventor 吴中和吴庆锋卢正兵
Owner 益阳市菲美特新材料有限公司
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