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Recovery process of oil component mixture of oil-based drill cuttings

An oil-based drilling cuttings, oil-water mixture technology, applied in the petrochemical field, can solve the problem of difficult to achieve pollution-free recycling and other problems

Active Publication Date: 2018-12-21
国勘石油技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The main purpose of the present invention is to provide a recovery process for the oil component mixture of oil-based drilling cuttings, so as to solve the problem that the oil components of oil-based drilling cuttings are difficult to realize pollution-free recycling in the prior art

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  • Recovery process of oil component mixture of oil-based drill cuttings
  • Recovery process of oil component mixture of oil-based drill cuttings

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] like figure 1 Shown, the recovery process of the oil component mixture of oil-based drilling cuttings of the present invention comprises the following steps:

[0034] Step S1: heating the oil-based cuttings to a predetermined temperature to thermally desorb the oil component mixture adsorbed in the oil-based cuttings to obtain a gas phase oil component mixture; in this embodiment, the predetermined temperature is T, 300°C≤T≤330°C.

[0035] Step S2: Condensing the gas-phase oil component mixture to obtain a liquid-phase oil-water mixture;

[0036] Step S3: recovering the liquid-phase oil-water mixture obtained by condensation.

[0037] Oil-based cuttings drilled from oil-based wells a...

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Abstract

The invention provides a recovery technology of oil component mixture of oil-based drilling cuttings. The recovery technology comprises the following steps: step one, heating oil-based drilling cuttings to a predetermined temperature to perform thermal desorption on the oil component mixture, which adsorbs on the oil-based drilling cuttings, so as to obtain a gas-phase oil component mixture; step two, condensing the gas-phase oil component mixture to obtain liquid-phase oil-water mixture; step three, recycling the liquid-phase oil-water mixture. The provided recovery technology can recycle and utilize the oil component, which is hard to recycle by the conventional method, in oil-based drilling cuttings without generation of pollution.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a recovery process of oil component mixture of oil-based drilling cuttings. Background technique [0002] At present, the treatment processes of oily drilling cuttings (including incineration treatment process, mechanical drying treatment process and chemical cleaning treatment process) all have relatively large shortcomings. [0003] 1. Incineration treatment process [0004] The oil in the cuttings is removed by direct contact combustion between the fuel and the cuttings. After incineration at a high temperature above 1100°C, the oil component in the cuttings can generally be reduced to less than 1%, or even lower. [0005] 2. Mechanical drying process [0006] Use a high-speed centrifuge to separate the oil-based cuttings from solid to liquid, and throw out the oil and water in the cuttings. Generally, the oil content can be reduced to 5-10% after high-speed centrifugat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00
Inventor 里群
Owner 国勘石油技术有限公司