Manufacturing method of soluble alloy fracturing ball based on oil and gas development

A manufacturing method and soluble technology, which is applied in the direction of mining fluid, earthwork drilling, wellbore/well components, etc., can solve problems such as difficult flowback and fracturing balls that cannot be dissolved by themselves, so as to increase added value, upgrade technology and equipment level, the effect of improving work efficiency
CN107385245BInactive Publication Date: 2019-06-18XIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Publication Date
2019-06-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a manufacturing method of a soluble alloy fracturing ball for oil and gas exploitation. The manufacturing method specifically comprises the steps of respectively weighing the following raw materials: 1 to 10% of zinc, 1 to 10% of magnesium-calcium intermediate alloy, 1 to 5% of nickel, 1 to 6% of copper, 1 to 3% of ferric chloride, 1 to 3% of magnesium-aluminum intermediate alloy, 0.5 to 4.5% of magnesium-neodymium intermediate alloy, 0.5 to 3.5% of manganese, 0.4 to 1.1% of zirconium compound and the balance of magnesium, wherein the sum of the mass fraction of the components is 100%; respectively preheating the raw materials; adding the preheated raw materials to a crucible, heating to 680 to 700 DEG C first, and then cooling the crucible to 670 to 700 DEG C; pouring to a die so as to prepare a casting rod; performing hot extrusion on the casting rod on a magnesium alloy extruder so as to obtain a blank; and machining the blank by adopting a machine tool, so that the soluble alloy fracturing ball for oil and gas exploitation is obtained. The problems of incapability of self dissolution and difficulty in flowback of a steel fracturing ball are solved.
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Description

technical field

[0001] The invention belongs to the technical field of raw materials for oil and gas exploitation, and relates to a method for manufacturing soluble alloy fracturing balls based on oil and gas exploitation. Background technique

[0002] Among my country's new proven oil and gas reserves in recent years, low-permeability unconventional oil and gas resources have reached 70%, and the proportion of low-permeability oil and gas production in my country will continue to increase in the future. The stable and increased production of oil and gas production will rely more on Low permeability unconventional oil and gas resources. The development of these unconventional oil and gas resources requires the use of multi-layer and multi-stage fracturing technology. In the downhole layered and segmented fracturing, temporary plugging tools are required to isolate the layers. Tool removal. At present, most of these tools are made of steel. In the production process of combi...

Claims

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