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Method for preparing sintered brick by water-based well drilling condensate modification

A technology for curing and sintering bricks, used in clay products, applications, household appliances, etc., can solve the problems of brick body bursting, powdering, frosting, brick body whitening, etc., to solve the problem of whitening, simple process and optimization. The effect of the process method

Inactive Publication Date: 2017-12-12
四川华恒正合石化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another purpose of the present invention is to solve the problems of brick body whitening, frosting, brick body bursting and pulverization in the method for preparing sintered bricks from water-based drilling solid waste in the prior art, from the aspects of raw materials and production technology Carry out improvement and optimization, and provide a new process method for preparing sintered bricks by modifying water-based drilling solidification

Method used

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Examples

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Effect test

Embodiment 1

[0029] A method for preparing sintered bricks by modifying water-based drilling solidifieds, comprising the following steps:

[0030] (1) After preliminary crushing of the water-based drilling solidified material, it is transported to a rotary circular screen to remove most of the limestone until its content is less than 10%, and then the water-based drilling solidified material with limestone removed is transported to the impact hammer crusher Perform deep crushing treatment in the middle, and then sieve with a vibrating sieve with a mesh diameter of 10-20 mesh to obtain a powder with a fineness of less than 1mm;

[0031] (2) The water-based drilling solidification powder obtained in step (1) and modifier barium salt, shale soil, and internal combustion coal are by weight percentage: water-based drilling solidification powder 15%, modifier barium salt 2% , 70% of shale soil, 13% of internal combustion coal, mixed and stirred evenly to obtain a mixed material;

[0032] (3) Ad...

Embodiment 2

[0036] A method for preparing sintered bricks by modifying water-based drilling solidifieds, comprising the following steps:

[0037] (1) After preliminary crushing, the water-based drilling solidified material is sent to the stone remover to remove most of the limestone until its content is less than 10%, and then the water-based drilling solidified material with limestone removed is transported to the impact hammer crusher Carry out deep crushing treatment, and then sieve with a vibrating sieve with a screen aperture of 10-20 mesh to obtain a powder with a fineness of less than 1mm;

[0038] (2) The water-based drilling solidification powder obtained in step (1) and modifier barium salt, shale soil, and internal combustion coal are in percentage by weight: water-based drilling solidification powder 30%, barium nitrate 7.5%, shale Soil 50%, internal combustion coal 12.5%, mix and stir evenly to obtain the mixed material;

[0039] (3) Add water to the mixed material obtained ...

Embodiment 3

[0042] A method for preparing sintered bricks by modifying water-based drilling solidifieds, comprising the following steps:

[0043] (1) Pretreatment of water-based drilling solidified material: first, crush the water-based drilling solidified material, transport it to the stone remover with a belt conveyor, remove most of the limestone, and then continue to use the belt conveyor to remove the limestone-removed water The base drilling solidified material is transported to the impact hammer crusher for deep crushing treatment. After the crushing treatment, it is screened with a vibrating screen. The mesh diameter of the vibrating screen is 10-20 mesh, and the powder with a fineness of less than 1mm is obtained;

[0044] (2) Ingredients: Add the following raw material components and modifiers by weight percentage: 25% of water-based drilling solidification powder, 5% of barium chloride, 55% of shale soil, 15% of internal combustion coal, fully stir and mix evenly , to get the m...

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Abstract

The invention discloses a method for preparing a sintered brick by water-based well drilling condensate modification. The method comprises a step (1) of causing water-based well drilling condensate to undergo preliminary crushing, adopting a stone removal device to remove most of limestone therein, performing deep crushing on the water-based well drilling condensate from which the limestone has been removed, performing sieving, and obtaining powder with the fineness lower than 1 mm; a step (2) of causing the water-based well drilling condensate powder obtained through the step (1) to be evenly mixed with modifier barium salt, shale soil and internal combustion coal, and obtaining a mixed material; a step (3) of adding water into the mixed material obtained through the step (2), performing stirring, and performing ageing for 2-3 days; a step (4) of making the aged mixed material into a green brick, performing drying and high-temperature sintering, and obtaining the finished sintered brick. According to the method for preparing the sintered brick by water-based well drilling condensate modification, the problems that in the prior art, a brick body of a sintered brick prepared from the water-based well drilling condensate becomes white, bursts and powders are effectively solved.

Description

technical field [0001] The invention relates to the technical field of oil and gas field drilling cuttings waste treatment, in particular to a method for preparing sintered bricks by modifying water-based drilling solidifieds. Background technique [0002] In the process of oil and gas drilling using water-based drilling fluid, the debris generated by the drill bit cutting formation rocks is carried out by the water-based drilling fluid to produce water-based cuttings. Water-based drilling cuttings originate from the use of water-based drilling fluid, and its composition is complex, including bentonite, lubricant, KCl, soda ash and other substances. At present, the treatment method of water-based drilling cuttings is solidification treatment, and the water-based drilling cuttings after curing treatment are called water-based drilling solidification. The current final disposal method of water-based drilling solidification is mainly on-site landfill. According to statistics,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13
CPCC04B33/131C04B33/132C04B2235/96Y02P40/60
Inventor 邹德军杨周洲肖波万思宇尹诗溢代孟清
Owner 四川华恒正合石化科技有限公司
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