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Method for manufacturing downhole fracturing proppant by oil sludge sand

A fracturing proppant, mud sand technology, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of polluted water, soil and air, deterioration of ecological environment, pollution, etc. Huge social and economic benefits, energy saving effect

Inactive Publication Date: 2012-12-05
张俊峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Oily sludge sand is mainly produced by oil fields in oil exploration and development. Oily sludge sand itself has complex components, containing a large amount of aged crude oil, wax, colloid, suspended solids, salts, acid gases, etc. It takes hundreds of years to completely decompose under natural conditions; the direct discharge of oily sludge will occupy a large amount of land, and the toxic substances contained in it will pollute water, soil and air, and deteriorate the ecological environment; at present, oily sludge sand in oil fields has been listed Included in the "National Hazardous Waste Catalog" as oily waste (HW08 item); according to the current crude oil production (16×108t / a) in my country, nearly one million tons of oily sand is produced every year, causing serious pollution and urgently needed to be solved

Method used

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Examples

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Effect test

Embodiment 1

[0009] Example 1: The oily sludge sand enters the sand washer through the mud sand pump in the tank, and after being cleaned and separated by the sand washer, the sand is discharged to the sand washing tank, and the overflow sewage, dirty oil, and sludge from the sand washer are returned to the dirty oil sludge sand tank For recovery, add oil extraction sewage from the combined station into the sand washing tank to mix, turn on the agitator on the top of the tank to wash and stir while washing, the mixed sand and water liquid is lifted by the concentrator pump to the concentrator for secondary cleaning and concentration, and the concentrated sand enters the concentrator The overflow liquid of the concentrator flows back to the sludge sand tank, and the sand accumulated in the concentration tank is discharged regularly, and then discharged to the conveyor and lifted to the vibrating screen for sand-water separation. The sewage is pumped into the sewage treatment device of the com...

Embodiment 2

[0011] Example 2: The oily sludge sand enters the sand washer through the mud sand pump in the tank, and after being cleaned and separated by the sand washer, the sand is discharged to the sand washing tank, and the overflow sewage, dirty oil, and sludge from the sand washer are returned to the dirty oil sludge sand tank For recovery, add oil extraction sewage from the combined station into the sand washing tank to mix, turn on the agitator on the top of the tank to wash and stir while washing, the mixed sand and water liquid is lifted by the concentrator pump to the concentrator for secondary cleaning and concentration, and the concentrated sand enters the concentrator The overflow liquid of the concentrator flows back to the sludge sand tank, and the sand accumulated in the concentration tank is discharged regularly, and then discharged to the conveyor and lifted to the vibrating screen for sand-water separation. The sewage is pumped into the sewage treatment device of the com...

Embodiment 3

[0013] Example 3: The oily sludge sand enters the sand washer through the mud sand pump in the tank, and after being cleaned and separated by the sand washer, the sand is discharged to the sand washing tank, and the overflow sewage, dirty oil, and sludge from the sand washer are returned to the dirty oil sludge sand tank For recovery, add oil extraction sewage from the combined station into the sand washing tank to mix, turn on the agitator on the top of the tank to wash and stir while washing, the mixed sand and water liquid is lifted by the concentrator pump to the concentrator for secondary cleaning and concentration, and the concentrated sand enters the concentrator The overflow liquid of the concentrator flows back to the sludge sand tank, and the sand accumulated in the concentration tank is discharged regularly, and then discharged to the conveyor and lifted to the vibrating screen for sand-water separation. The sewage is pumped into the sewage treatment device of the com...

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Abstract

The invention provides a method for manufacturing a downhole fracturing proppant by oil sludge sand, belonging to the utilization of waste materials. The technical scheme is as follows: the method comprises the steps of carrying out separation of oil, water, sludge and sand altogether on the oil-containing sludge sand, processing the separated sand in a high-temperature furnace at 800 DEG C to 1100 DEG C, screening, removing impurities, milling into 150-400meshes of powders by a Raymond mill, adding 1-3 times of amount of high-aluminum ore powder and 10-30% of iron ore, stirring uniformly to form 20-90meshes of particles; heating and drying the particles, transporting the particles into a rotary kiln, carrying out constant-speed rotation firing at 200 DEG C to 1500 DEG C so as to obtain the oil field downhole fracturing proppant. According to the method, the problem that the oil-containing sludge-sand pollutes soil and environment is solved effectively, valuable energy resource and a large amount of cost are saved, great social benefits and economic benefits can be generated, and the method is suitable for popularization and application.

Description

Technical field: [0001] The invention relates to a method for utilizing oily sludge sand, in particular to a method for making downhole fracturing proppant by using oily sludge sand. Background technique: [0002] Oily sludge sand is mainly produced by oil fields in oil exploration and development. Oily sludge sand itself has complex components, containing a large amount of aged crude oil, wax, colloid, suspended solids, salts, acid gases, etc. It takes hundreds of years to completely decompose under natural conditions; the direct discharge of oily sludge will occupy a large amount of land, and the toxic substances contained in it will pollute water, soil and air, and deteriorate the ecological environment; at present, oily sludge sand in oil fields has been listed Included in the "National Hazardous Waste Catalog" in the oily waste category (HW08 items); according to my country's current crude oil production (16 × 108t / a), nearly one million tons of oily sands are produced ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80C02F11/00
Inventor 张俊峰梁玉海
Owner 张俊峰
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