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Low-density petroleum fracturing propping agent and preparation method thereof

A fracturing proppant and low-density technology, which is applied in chemical instruments and methods, earthwork drilling, production fluids, etc., can solve the problems of waste of resources and low performance of oil fracturing proppant, and achieve the goal of improving the opening gap and low cost , good spherical effect

Active Publication Date: 2019-12-31
DATANG TONGZHOU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, about 1% of over-burned and unqualified proppant waste is produced in the current production process of oil fracturing proppants, and the performance of over-burned oil fracturing proppants is low. The treatment method is to landfill the burnt oil fracturing proppant, which has the problem of waste of resources

Method used

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  • Low-density petroleum fracturing propping agent and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0044] The low-density petroleum fracturing proppant of this embodiment is prepared from the following components:

[0045] 4% to 6% lightly burned bauxite, 6% to 8% bentonite, 0.8% to 1.2% manganese powder, 0.8% to 1.2% lightly burned magnesium powder, 0.4% to 0.6% silica fume, 0 % to 0.5% of the overburned recycled powder and the balance is low-aluminum fly ash.

[0046] Wherein, in the light-burned bauxite, Al 2 o 3 The mass percent composition of 70%; In the described bentonite, the mass percent composition of montmorillonite is 85%; In the described low aluminum fly ash, Al 2 o 3 The mass percentage content is 36.52%, SiO 2 The mass percentage content is 38.56%, Fe 2 o 3 The mass percentage of CaO is 4.05%, and the mass percentage of CaO is 10.35%; the light-burned bauxite, the bentonite, the manganese powder, the light-burned magnesium powder, the low-alumina fly ash And the silica fume has passed through a 200-mesh sieve, with a passing rate of 99%.

[0047] Suc...

Embodiment 2

[0059] The low-density petroleum fracturing proppant of this embodiment is prepared from the following components:

[0060] 4% to 6% lightly burned bauxite, 6% to 8% bentonite, 0.8% to 1.2% manganese powder, 0.8% to 1.2% lightly burned magnesium powder, 0.4% to 0.6% silica fume, 0 % to 0.5% of the overburned recycled powder and the balance is low-aluminum fly ash.

[0061] Wherein, in the light-burned bauxite, Al 2 o 3 The mass percent composition of 70%; In the described bentonite, the mass percent composition of montmorillonite is 85%; In the described low aluminum fly ash, Al 2 o 3 The mass percentage content is 36.52%, SiO 2 The mass percentage content is 38.56%, Fe 2 o 3 The mass percentage of CaO is 4.05%, and the mass percentage of CaO is 10.35%; the light-burned bauxite, the bentonite, the manganese powder, the light-burned magnesium powder, the low-aluminum fly ash And the silica fume has passed through a 200-mesh sieve, with a passing rate of 99%.

[0062] Su...

Embodiment 3

[0074] The low-density petroleum fracturing proppant of this embodiment is prepared from the following components:

[0075] 4% to 6% lightly burned bauxite, 6% to 8% bentonite, 0.8% to 1.2% manganese powder, 0.8% to 1.2% lightly burned magnesium powder, 0.4% to 0.6% silica fume, 0 % to 0.5% of the overburned recycled powder and the balance is low-aluminum fly ash.

[0076] Wherein, in the light-burned bauxite, Al 2 o 3 The mass percent composition of 70%; In the described bentonite, the mass percent composition of montmorillonite is 85%; In the described low aluminum fly ash, Al 2 o 3 The mass percentage content is 36.52%, SiO 2 The mass percentage content is 38.56%, Fe 2 o 3 The mass percentage of CaO is 4.05%, and the mass percentage of CaO is 10.35%; the light-burned bauxite, the bentonite, the manganese powder, the light-burned magnesium powder, the low-aluminum fly ash And the silica fume has passed through a 200-mesh sieve, with a passing rate of 99%.

[0077] Su...

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Abstract

The invention discloses a low-density petroleum fracturing propping agent and a preparation method thereof, belonging to the technical field of petroleum fracturing propping agents. The low-density petroleum fracturing propping agent is prepared from light-burned bauxite, bentonite, light-burned magnesium powder, manganese powder, overburned recycled powder, silica fume and low-alumina fly ash. The invention further discloses a preparation method of the low-density petroleum fracturing propping agent. The method comprises the steps of burdening, slurrying, homogenizing, drying, granulating andscreening. According to the invention, overburnt blank balls are crushed and then used as the overburnt recycled powder, so the problem of raw material wasting is reduced, the density of the petroleum fracturing propping agent is reduced, the stability and strength of the petroleum fracturing propping agent are improved, resource utilization is achieved, and large-scale production of the petroleum fracturing propping agent is facilitated.

Description

technical field [0001] The invention relates to the technical field of petroleum fracturing proppants, in particular to a low-density petroleum fracturing proppant and a preparation method thereof. Background technique [0002] During oil and gas deep well mining, high closure pressure and low permeability deposits are treated by fracturing to crack the oil-gas-bearing rock formations, and oil and gas are collected from the channels formed by the fractures. At this time, fluids need to be injected into the rock base to overcome formation fractures Intensive pressure creates cracks in the rock formations around the wellbore, forming a channel with high-level flow capability. In order to keep the cracks formed after fracturing open, oil and gas products can pass through smoothly. [0003] At present, there are many types of proppants commonly used in fracturing and acidizing in the oil and gas industry, but only quartz sand and artificial sintered ceramsite have better compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 司峻山贺永利
Owner DATANG TONGZHOU TECH
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