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Resource utilization method for oil-based drilling cutting ash residue

An oil-based drill cuttings and recycling technology, applied in the field of environmental engineering, can solve problems such as no compression molding reports, and achieve the effects of high burnout efficiency, improved combustion efficiency, and good mechanical properties.

Inactive Publication Date: 2019-08-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been extensive studies on the compression molding of various biomass raw materials, but there is no relevant compression molding report on the ash of oil-based drilling cuttings

Method used

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  • Resource utilization method for oil-based drilling cutting ash residue
  • Resource utilization method for oil-based drilling cutting ash residue
  • Resource utilization method for oil-based drilling cutting ash residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The oil-based drilling cuttings and ash produced by a drilling platform of Chongqing Fuling Jianghan Oilfield Company during the drilling process of oil and gas field exploration and exploitation are used as raw materials. The oil-based drilling cuttings and ash contain the following elements: C 24.02%, H 3.21%, N 0.03% , S4.09%, calorific value 10.5MJ / kg.

[0025] 70 parts of starch, 10 parts of carboxymethyl cellulose, 1 part of potassium permanganate, 10 parts of NaOH, and 9 parts of sodium tetraborate were mechanically mixed to obtain a composite binder; 60 parts of oil-based drilling cuttings ash, 22.5 parts The composite binder, 2.5 parts of magnesium acetate, and 15 parts of water are mixed mechanically, and then sent to a piston stamping molding machine to be compressed into a cylindrical hollow molding fuel with a diameter of 20 mm and a length of 50 mm under normal temperature.

[0026] After the molded fuel was dried, the shear force was measured to be 45.2N ...

Embodiment 2

[0028] The oil-based drilling cuttings and ash produced by a drilling platform of Chongqing Fuling Jianghan Oilfield Company during the drilling process of oil and gas field exploration and production are used as raw materials. The oil-based drilling cuttings and ash contain the following elements: C 23.35%, H 2.85%, N 0.05% , S3.84%, calorific value 10.2MJ / kg.

[0029] 75 parts of starch, 10 parts of carboxymethyl cellulose, 2 parts of potassium permanganate, 9 parts of NaOH, and 4 parts of sodium tetraborate were mechanically mixed to obtain a composite binder; 65 parts of oil-based drill cuttings ash, 20 parts The composite binder, 5 parts of magnesium acetate, and 10 parts of water are mechanically mixed, and then sent to a piston stamping molding machine to be compressed into a cylindrical hollow molding fuel with a diameter of 20 mm and a length of 50 mm under normal temperature.

[0030] After the molded fuel was dried, the shear force was measured to be 41.3N by electr...

Embodiment 3

[0032] The oil-based drilling cuttings and ash produced by a drilling platform of Chongqing Fuling Jianghan Oilfield Company in the drilling process of oil and gas field exploration and exploitation are used as raw materials. The oil-based drilling cuttings and ash contain the following elements: C 22.78%, H 2.98%, N 0.07% , S4.43%, calorific value 9.9MJ / kg.

[0033] 80 parts of starch, 5 parts of hydroxypropyl methylcellulose, 1 part of potassium permanganate, 9 parts of NaOH, and 5 parts of sodium tetraborate were mechanically mixed to obtain a composite binder; 45 parts of oil-based drilling cuttings ash, 30 parts of composite binder, 5 parts of magnesium acetate, and 20 parts of water are mechanically mixed, and then sent to a piston stamping molding machine to be compressed into a cylindrical hollow molding fuel with a diameter of 20 mm and a length of 50 mm under normal temperature.

[0034] After the molded fuel is dried, the shear force of the fly ash is 46.3N measured...

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Abstract

The invention discloses a resource utilization method for oil-based drilling cutting ash residue, wherein oil-based drilling cutting ash residue, a composite binder, a combustion-supporting agent anda burn-out aid are mechanically and uniformly mixed, water is added, uniform mixing is performed, and a molded daily life fuel is obtained in a molding machine. According to the present invention, based on the no adhesion of the oil-based drilling cutting ash residue, the method for adding part of the binder is used so as to effectively compress and mold the oil-based drilling cutting ash residue;and general alkali metals, alkaline earth metals, light non-ferrous metals, silica and the like are all high in the contents in the oil-based drilling cutting ash residue, and can be subjected to complex physicochemical reactions under high temperature heating condition so as to cause the complete combustion of the oil-based drilling cutting ash residue, and after the magnesium salt or magnesiumoxide burn-out aid is added, the combustion efficiency of the oil-based drilling cutting ash residue can be effectively improved through the interaction with the inorganic substances in the oil-baseddrilling cutting ash residue.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a resource utilization method of oil-based drilling cuttings and ash. Background technique [0002] During the drilling process of Chongqing Fuling Jianghan Oilfield Company in the exploration and production of oil and gas fields, drilling fluid needs to be injected to lubricate and cool the drill bit, build walls to prevent leakage, and carry rock debris back to the ground. According to different dispersion media, drilling fluids can be divided into three types: water-based, synthetic-based and oil-based to cope with different drilling depths and geological conditions. Oil-based drilling fluid can reduce cuttings shedding and produce less cuttings, so it is widely used in drilling. At present, most shale gas wells in China use oil-based drilling fluid, but its environmental impact is relatively low. Larger, resulting in the solid waste formed by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/48C10L9/10
CPCC10L5/48C10L9/10C10L2200/029C10L2230/22C10L2290/24C10L2290/32Y02E50/30
Inventor 夏世斌周博逊李盼
Owner WUHAN UNIV OF TECH
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