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Cordierite-based ultralow-density high-strength petroleum fracturing propping agent and preparation method thereof

A fracturing proppant and ultra-low density technology, which is applied in chemical instruments and methods, earth drilling, clay products, etc., can solve the problems of low strength and difficulty of ceramsite, and achieve high value-added utilization, stable properties, and improved The effect of transport efficiency

Inactive Publication Date: 2021-07-09
山东谊星新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese authorized invention patent CN 102060562 B has prepared a porous structure of ceramsite, which is difficult to be used as a proppant for oil fracturing due to its low strength, and is only used for construction ceramsite

Method used

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  • Cordierite-based ultralow-density high-strength petroleum fracturing propping agent and preparation method thereof
  • Cordierite-based ultralow-density high-strength petroleum fracturing propping agent and preparation method thereof
  • Cordierite-based ultralow-density high-strength petroleum fracturing propping agent and preparation method thereof

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Embodiment 1

[0026] 1. Preparation process

[0027] A cordierite-based ultra-low-density high-strength petroleum fracturing proppant and a preparation method thereof. The raw material formula is as follows: 25% talc, 65% kaolin, 10% high-plasticity clay, all of which are mass fractions. Chemical composition of talc raw materials: 35% by mass of MgO, SiO 2 Mass percentage 49%, Al 2 o 3 Mass percent content 10.8%; loss on ignition 11%; chemical composition of kaolin: Al 2 o 3 Mass fraction 41.2%, SiO 2 Mass percentage 45.7%, Fe 2 o 3 Mass percent content 3.5%; high plasticity clay raw material Al 2 o 3 Mass percentage 21.5%, SiO 2 The mass percentage is 70.8%. The cordierite-based petroleum fracturing proppant was prepared through wet ball milling, spray granulation, rolling ball granulation, green body screening, and high-temperature firing.

[0028] 1) Weighing talc, kaolin, and high plasticity clay according to the above-mentioned raw materials and formula and carrying out wet ...

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Abstract

The invention relates to a cordierite-based ultralow-density high-strength petroleum fracturing propping agent and a preparation method thereof. According to the method, talc, kaolin and high-plasticity clay are used as main raw materials, and the cordierite-based ultralow-density high-strength petroleum fracturing propping agent which is good in sphericity (larger than 0.9),apparent density ranging from 2.35 g / cm<3> to 2.65 g / cm<3>, volume density ranging from 1.15 g / cm<3> to 1.45 g / cm<3>, and the breakage rate of the propping agent under the pressure of 69 MPa being smaller than 9%can be prepared through a series of technological processes of wet ball milling, spray granulation, rolling ball granulation, green body screening, high-temperature sintering, and sintered product screening.

Description

technical field [0001] The invention relates to a cordierite-based ultra-low-density and high-strength petroleum fracturing proppant and a preparation method thereof, belonging to the technical field of petroleum fracturing proppant. Background technique [0002] Fracturing technology has been widely used in the field of oil and natural gas exploration. During the fracturing process, the fracturing fluid carrying the oil fracturing proppant is introduced into the rock fractures formed under high-pressure operation, and the fracturing proppant propping the fractures will not be closed under the closing pressure of the rock formation, thus forming oil or gas with high conductivity The natural gas channel can achieve the beneficial effect of increasing the production of oil and gas fields and prolonging the service life of oil wells. Petroleum fracturing proppants play a pivotal role in fracturing operations, and are the key factors related to the success and cost of fracturin...

Claims

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Application Information

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IPC IPC(8): C04B33/04C04B33/24C04B33/13C04B35/195C09K8/80
CPCC04B33/04C04B33/24C09K8/80C04B33/1305C04B35/195C04B2235/77C04B2235/96
Inventor 赵华星
Owner 山东谊星新材料有限公司
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