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A kind of acid-resistant petroleum fracturing proppant and its manufacturing method

A fracturing proppant and manufacturing method technology, applied in chemical instruments and methods, earthwork drilling, drilling composition, etc., can solve the problems of general acid resistance, unsuitable for complex topography and landform areas, influence of acid resistance, etc. Achieve the effect of improving acid resistance, accelerating the time of crystal phase reaction, and reducing pollution

Active Publication Date: 2017-01-04
FOSHAN DONGPENG CERAMIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the silicon carbide contained in the polished brick waste slag will decompose during the calcination process, some pores may be formed. These pores are beneficial to reduce the density of the fracturing proppant, but also affect its acid resistance to a certain extent. The acid solubility is about 3~ 10%, the acid resistance is average, so it is not suitable for use in areas with complex topography

Method used

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  • A kind of acid-resistant petroleum fracturing proppant and its manufacturing method
  • A kind of acid-resistant petroleum fracturing proppant and its manufacturing method
  • A kind of acid-resistant petroleum fracturing proppant and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-10

[0036] With reference to Table 1, Table 1 is the formulation table of Examples 1-10.

[0037] Table 1

[0038]

[0039] Weigh the raw materials according to the formula components given in Table 1, and then add 40% to 70% of the dry weight of water for ball milling to make a slurry with a fineness of 350 to 600 mesh. Preferably, a small amount of solution can be added Glue, which can make the slurry have better fluidity; then the slurry is spray-dried and then rolled and granulated by a granulator to make granular powder; then the granular powder is dried and sieved, A granular powder with a particle size of ΦΦ20 mesh to 60 mesh (850 to 250 μm) is obtained. Select a φ2.5×45m rotary kiln, and calcinate at 1100°C to 1180°C for 1-3 hours (the calcining time increases with the content of bauxite in the formula, for example, the calcining time of Example 1 is 1 hour, and the calcining time of Example 1 is 1 hour. The calcination time of 4 and 9 is 2.5 hours, and the calcinatio...

Embodiment 11-12

[0049] In addition, in order to improve the flow conductivity and acid resistance of the prepared acid-resistant petroleum fracturing proppant, the present invention also provides Example 11 and Example 12.

[0050] Select the acid-resistant petroleum fracturing proppant particles prepared in the above Example 3, and use a 20-ton ball mill to charge 40 to 45 tons of material for self-grinding and polishing (self-grinding and polishing does not add ball milling media such as ball milling balls, and uses the material itself for polishing. Grinding) for 3 to 4 hours, after the ball is out, sieve and remove the throwing debris below 60 meshes, and then wrap the polished particles with a resin layer. Specifically, use a drum mixer to grind the polished particle powder. Spray the atomized resin during the disturbance, and keep the temperature in the drum mixer within the range of 80-100°C through the hot air source at the other end. Wherein the resin selected in embodiment 11 is phe...

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Abstract

The invention provides an acid-resistant petroleum fracturing propping agent and a preparation method thereof. The acid-resistant petroleum fracturing propping agent is prepared from the following components in percentage by mass: 60-80% of bauxite, 10-30% of polished tile slag, 5-15% of iron-ore slag, 0-5% of zirconium oxide, 1.5-6% of alumina sol or aluminum phosphate gel, 0.5-5% of one or more of barium, titanium and lanthanum series rare earth minerals and 0.05-0.1% of an adhesive. Compared with the prior art, the acid-resistant petroleum fracturing propping agent provided by the invention can consume a great deal of the polished tile slag and the iron-ore slag to relieve the environment pressure, has very excellent acid resistance, with the acid solubility of less than or equal to 3%, and is applicable to petroleum extraction in regions with complex geological conditions.

Description

technical field [0001] The invention relates to a petroleum fracturing proppant and a manufacturing method thereof, more particularly, to an acid-resistant petroleum fracturing proppant produced by using polishing brick waste slag and iron ore slag and a manufacturing method thereof. Background technique [0002] Oil proppant is also called oil fracturing proppant. When deep oil and gas wells are exploited, the high closure pressure and low permeability deposits are fracturing to crack the oil and gas-bearing rock layers, and oil and gas are collected from the channels formed by the cracks. At this time, fluids need to be injected into the rock base to exceed the formation fracture. The intense pressure causes cracks in the rock formations around the wellbore to form a channel with high-level flow capacity. In order to keep the cracks formed after fracturing open, oil and gas products can pass through smoothly. Performance requirements of petroleum proppant: 1. The proppant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/80C04B35/10C04B35/622
CPCC04B35/10C04B35/622C09K8/805
Inventor 金国庭周燕徐瑜曾权
Owner FOSHAN DONGPENG CERAMIC
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