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Equipment and method for spin-drying oil-based drilling fluid wastes

An oil-based drilling fluid and waste technology, which is applied in the field of drilling fluid waste drying and treatment equipment, can solve problems such as waste pollution, and achieve the effects of low energy consumption, cost reduction and energy saving.

Inactive Publication Date: 2013-01-09
CNPC GREATWALL DRILLING ENG
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AI Technical Summary

Problems solved by technology

On the one hand, it solves the problem of oil-based drilling fluid waste pollution, and on the other hand, it also reduces the waste of oil-based drilling fluid oil or synthetic base

Method used

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  • Equipment and method for spin-drying oil-based drilling fluid wastes
  • Equipment and method for spin-drying oil-based drilling fluid wastes
  • Equipment and method for spin-drying oil-based drilling fluid wastes

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Embodiment Construction

[0023] a. Check the condition of each equipment (all parts are not loose, the lubrication is normal, and the circuit is intact). After it is completely normal, it is ready to start. (Start the program, start in sequence: drying machine → 2# screw conveyor → 1# screw conveyor) , for 5-10 minutes test run;

[0024] b. When the drying machine is turned on, first turn on the oil pump, and then turn on the main engine; when the drying machine is turned off, first turn off the main engine, and then turn off the oil pump;

[0025] c. Stop the processing procedure and turn off in turn: 1# screw propeller → 2# screw pusher → spin dryer;

[0026] d. When the liquid phase tank exceeds the calibrated liquid level, turn on the high-speed centrifuge, turn on in turn: auxiliary machine → main machine → liquid supply pump; turn off the centrifuge, turn off in order: liquid supply pump → main machine → auxiliary machine.

[0027] From July 16th to July 26th, the accumulated cuttings processin...

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Abstract

The invention relates to equipment and a method for treating oil-based drilling fluid wastes, in particular to equipment and a method for spin-drying oil-based drilling fluid wastes. In the technology for spin-drying oil-based drilling fluid wastes, oil-based drilling cuttings and wastes (with an oil content of 10-30%) are dried by a spin dryer, so that the oil content is reduced to below 5%, wherein the oil-containing drilling cuttings can be directly used to make bricks or to pave roads; and then the solid-liquid separation is performed on a liquid phase thrown by the spin drier through a high-speed centrifuge so as to recycle pure oil products. According to the invention, the waste of the oil-based or synthetic-based drilling fluid oil is reduced while the problem on pollution of the oil-based drilling liquid wastes is solved.

Description

technical field [0001] The invention relates to a drilling fluid waste drying treatment equipment and method, in particular to an oil-based drilling fluid waste drying treatment equipment and method. Background technique [0002] During the drilling construction process, a large amount of cuttings and wastes are produced. Since these cuttings and wastes are polluted by drilling fluid and formation fluid, the oil content in cuttings and wastes is relatively high, which can exceed 30%. The drilling cuttings and waste produced by a well can reach hundreds of cubic meters. Plants will not grow and organisms will die, which will eventually affect our human existence. Therefore, the harmless treatment of oil-based mud drilling cuttings and waste is the need of environmental protection and the need of our human existence. Arbitrary discharge will pollute the surrounding environment, cause irreversible damage to the earth we depend on for survival, and gradually reduce the living s...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00B01D43/00
Inventor 刘绪全杨金荣金克武刘义元尹志亮张金波夏志敏侯万武蔡国滨王超
Owner CNPC GREATWALL DRILLING ENG
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