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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

Inactive Publication Date: 2019-06-18
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for manufacturing soluble alloy fracturing balls based on oil and gas development, which solves the problems in the prior art that the fracturing balls made of steel cannot dissolve by themselves and are not easy to flow back

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The manufacturing method of soluble alloy fracturing balls based on oil and gas development specifically includes the following steps: Weigh the following raw materials respectively: 5% zinc, 5% magnesium-calcium master alloy, 3% nickel, 3% copper, 2% ferric chloride, magnesium 2% aluminum master alloy, 2.5% magnesium-neodymium master alloy, 2% manganese, 0.8% zirconium compound, and the balance is magnesium. The sum of the parts by mass of the above components is 100%; Heat for 25 minutes to remove moisture; add the weighed magnesium and magnesium-calcium intermediate alloys into the crucible, heat the crucible to 690°C and let it stand for 18 minutes; add zinc and ferric chloride to the crucible, stir well, and continue to pour into the crucible Add zirconium compounds and let stand for 12 minutes; raise the temperature of the crucible to 710°C, then add nickel, copper, magnesium-neodymium master alloy, magnesium-aluminum master alloy and manganese into the crucible, s...

Embodiment 2

[0070] The manufacturing method of soluble alloy fracturing balls based on oil and gas development includes the following steps: Weigh the following raw materials respectively: 10% zinc, 1% magnesium-calcium master alloy, 1% nickel, 1% copper, 1% ferric chloride, magnesium 1% of aluminum master alloy, 0.5% of magnesium-neodymium master alloy, 0.5% of manganese, 0.4% of zirconium compound, and the balance is magnesium. The sum of the parts by mass of the above components is 100%. Heat for 20 minutes to remove water; add the weighed magnesium and magnesium-calcium master alloy into the crucible, heat the crucible to 680°C and let it stand for 15 minutes; add zinc and iron to the crucible, stir evenly, and continue to add zirconium into the crucible compound, stand still for 10 minutes; raise the crucible temperature to 700°C, then add nickel, copper, magnesium-neodymium master alloy, magnesium-aluminum master alloy and manganese into the crucible, stir evenly and let stand for 15...

Embodiment 3

[0072] The manufacturing method of soluble alloy fracturing balls based on oil and gas development specifically includes the following steps: Weigh the following raw materials respectively: 1% zinc, 10% magnesium-calcium master alloy, 5% nickel, 6% copper, 3% ferric chloride, magnesium 3% aluminum master alloy, 4.5% magnesium-neodymium master alloy, 3.5% manganese, 1.1% zirconium compound, and the balance is magnesium. The sum of the parts by mass of the above components is 100%; Heat for 30 minutes to remove moisture; add the weighed magnesium and magnesium-calcium master alloy into the crucible, heat the crucible to 700°C and let it stand for 20 minutes; add zinc and iron to the crucible, stir evenly, and continue to add zirconium into the crucible compound, stand still for 15 minutes; raise the crucible temperature to 720°C, then add nickel, copper, magnesium-neodymium master alloy, magnesium-aluminum master alloy and manganese into the crucible, stir evenly and let stand fo...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C23/00E21B43/26
CPCC22C1/03C22C23/00E21B43/26
Inventor 刘悦王文瑾李妍韩振华郝敏敏
Owner XIAN UNIV OF TECH
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