Petroleum fracturing proppant prepared from flyash and waste ceramic, and preparation method thereof

Abstract

Provided is a petroleum fracturing proppant prepared from flyash and waste ceramics, the petroleum fracturing proppant being prepared from the following components: 40 wt. %-90 wt. % of main material, the main material being flyash and waste ceramics; 1 wt. %-40 wt. % of auxiliary material, the auxiliary material being potassium feldspar powder and manganese ore powder; and the sum of the main material and the auxiliary material is 100%. The present invention employs low-cost flyash and waste ceramics as raw material, and the petroleum fracturing proppant prepared under a low temperature has low apparent density and strong crushing resistance, and is also low cost and reduces energy consumption.

Claims

1. A petroleum fracturing proppant produced from flyash and waste ceramics, characterized in that it is prepared from the following components: 40%-90% by weight of a main material that is composed of flyash and waste ceramics; 1%-40% by weight of an auxiliary material that is composed of potash feldspar powder and manganese ore powder; wherein sum of the main material and the auxiliary material is 100%.

2. The petroleum fracturing proppant according to claim 1, characterized in that a mass ratio of the flyash to the waste ceramics is (4-6):(2-3).

3. The petroleum fracturing proppant according to claim 1, characterized in that a mass ratio of the potash feldspar powder to the manganese ore powder is (2-5):1.

4. The petroleum fracturing proppant according to claim 1, characterized in that MnO.sub.2 in the manganese ore powder accounts for 0-5% by weight of the petroleum fracturing proppant produced from flyash and waste ceramics.

5. A method for preparing a petroleum fracturing proppant produced from flyash and waste ceramics, comprising the following steps: A) mixing flyash, waste ceramics, potash feldspar powder and manganese ore powder to perform homogenization and refining treatment, and then sieving it after granulation so as to obtain a mixture; and B) sintering the mixture to obtain the petroleum fracturing proppant produced from flyash and waste ceramics.

6. The preparation method according to claim 5, characterized in that the mixture has a particle size ranging from 3350 to 106 m.

7. The preparation method according to claim 5, characterized in that the step A) is particularly: mixing the flyash, the waste ceramics, the potash feldspar powder and the manganese ore powder, placing into a forced mixer to perform homogenization and refining treatment, and then sieving it after granulation so as to obtain a mixture.

8. The preparation method according to claim 5, characterized in that the sintering is performed for 4-8 h.

Description

EXAMPLE 1

(1) 60 Kg of dedusted waste ash from HEBIWANHE power plant, 20 Kg of low-aluminum waste ceramics from XINZHONGYUAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 900 to 600 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 20-40 mesh (850-425 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(2) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.42 g/cm.sup.3, an apparent density of 2.47 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 2

(3) 50 Kg of dedusted waste ash from HEBIWANHE power plant, 30 Kg of low-aluminum waste ceramics from JINJISHAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 900 to 600 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 20-40 mesh (850-425 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(4) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.45 g/cm.sup.3, an apparent density of 2.50 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 3

(5) 60 Kg of dedusted waste ash from HEBIWANHE power plant, 20 Kg of low-aluminum waste ceramics from XINZHONGYUAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 710 to 425 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 30-50 mesh (600-300 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(6) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.45 g/cm.sup.3, an apparent density of 2.52 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 4

(7) 50 Kg of dedusted waste ash from HEBIWANHE power plant, 30 Kg of low-aluminum waste ceramics from JINJISHAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 710 to 425 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 30-50 mesh (600-300 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(8) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.48 g/cm.sup.3, an apparent density of 2.53 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 5

(9) 60 Kg of dedusted waste ash from HEBIWANHE power plant, 20 Kg of low-aluminum waste ceramics from XINZHONGYUAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 500 to 425 The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 40-60 mesh (425-250 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(10) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.47 g/cm.sup.3, an apparent density of 2.53 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 6

(11) 50 Kg of dedusted waste ash from HEBIWANHE power plant, 30 Kg of low-aluminum waste ceramics from JINJISHAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 500 to 425 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 40-60 mesh (425-250 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(12) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.49 g/cm.sup.3, an apparent density of 2.55 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 7

(13) 60 Kg of dedusted waste ash from HEBIWANHE power plant, 20 Kg of low-aluminum waste ceramics from XINZHONGYUAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 500 to 355 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 40-70 mesh (425-212 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(14) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.49 g/cm.sup.3, an apparent density of 2.56 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

EXAMPLE 8

(15) 50 Kg of dedusted waste ash from HEBIWANHE power plant, 30 Kg of low-aluminum waste ceramics from JINJISHAN ceramic plant in ceramic industrial zone in HEBI city, 15 Kg of potash feldspar powder and 5 Kg of manganese ore powder were mixed to perform homogenization and refining treatment in a forced mixer, subsequently granulated and sieved to obtain a mixture with a particle size ranging from 500 to 355 m. The mixture was sintered at a temperature between 1100 C. and 1150 C. under atmospheric pressure in a 2.5 m45 m rotary kiln for 4 h, then cooled and sieved to obtain 40-70 mesh (425-212 m) petroleum fracturing proppant produced from flyash and waste ceramics.

(16) The petroleum fracturing proppant produced from flyash and waste ceramics was determined to have a bulk density of 1.49 g/cm.sup.3, an apparent density of 2.56 g/cm.sup.3, and a crush rate of 8% or lower under a closure pressure of 86 MPa.

(17) The above is merely preferable embodiments of the present invention. It should be noted that a number of improvements and modifications may be made by those skilled in the art without deviation from the principle of the present invention, and these improvements and modifications should be regarded as falling within the protection scope covered by the present invention.