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Method and equipment for treating oil-containing sludge cuttings of oil and gas field

A treatment method and technology of treatment equipment, applied in the direction of sludge treatment, electrochemical sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of increasing treatment costs, pollution, and increasing the difficulty of resource utilization, etc. Achieve the effect of improving oil recovery rate, good separation effect and improving separation efficiency

Pending Publication Date: 2017-10-10
方明环保科技(漳州)有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional process is to add a coagulant to the mud, and then use a filter press to precipitate and coagulate the oil into the solid sludge. The solidification of the sludge increases the difficulty of resource utilization, increases the processing cost, and causes pollution.

Method used

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  • Method and equipment for treating oil-containing sludge cuttings of oil and gas field
  • Method and equipment for treating oil-containing sludge cuttings of oil and gas field

Examples

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Embodiment Construction

[0049] Please check figure 1 , a method for treating oily mud cuttings in oil and gas fields, including:

[0050] (1) In the dilution step, water is added to the oily mud cuttings to dilute the oily mud cuttings into mud water, and the mud water is stirred until it is fully stirred so that it can be evenly and smoothly transported to the next process. Among them: the dilution factor depends on the mud consistency and is generally 2 to 10 times, that is, the mass ratio is 2-10 times.

[0051] (2), oil sludge water separation step, separate oil from mud water, recover the separated oil, and obtain sedimented mud cuttings and sewage after separating oil and mud cuttings;

[0052] (3), dehydration step, carry out dehydration treatment to the mud rock debris that settles down, and the water that escapes is sewage;

[0053] (4), curing step, solidifying the dehydrated mud cuttings to be able to resource utilization;

[0054] (5) Sewage treatment step, treating the sewage in the o...

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Abstract

The invention discloses a method and equipment for treating oil-containing sludge cuttings of an oil and gas field. The method comprises the following steps: diluting oil-containing sludge cuttings into sludge water, separating oil from sludge water, and reclaiming the separated oil to obtain settled sludge cuttings and sewage after oil and sludge cuttings are separated; dehydrating the settled sludge cuttings to obtain sewage which is the dehydrated water; curing the dehydrated sludge cuttings for resource utilization; and treating the sewage obtained in the oil-sludge water separating step and the dehydrating step until the discharge standard or resource utilization is fulfilled. The method can be used for reclaiming oil, recycling sludge cuttings and water and changing waste materials into valuable things, has great social and economic meanings, and avoids environmental pollution.

Description

technical field [0001] The invention relates to equipment used in oil and gas fields, in particular to a method and equipment for treating oily mud and cuttings in oil and gas fields. Background technique [0002] In the drilling process of oil and gas fields (oil field + gas field), it is necessary to use mud to solidify the well wall and lubricate the drill bit. The mud is divided into oil-containing mud and oil-free mud. Oil-free mud has been relatively well treated in the oil field. Oily mud can play the role of lubricating the drill bit during drilling. The oily mud and drilling cuttings must be disposed of after the drilling operation is completed and before being discarded. The traditional process is to add a coagulant to the mud, and then use a filter press to precipitate and coagulate the oil into the solid sludge. The solidification of the sludge increases the difficulty of resource utilization, increases the processing cost, and causes pollution. . Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C02F11/14C02F9/06C02F103/36C02F101/30
CPCC02F9/00C02F11/00C02F11/006C02F11/008C02F11/122C02F11/127C02F11/14C02F2103/365C02F2101/30C02F1/52C02F1/463C02F1/4672
Inventor 罗烈明
Owner 方明环保科技(漳州)有限公司
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