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Oil base mud and landing oil sand treatment device and technology

An oil-based mud and treatment device technology, which is applied to mixers with rotary stirring devices, transportation and packaging, chemical/physical processes, etc. The effect of reducing the extraction time, reducing the oil content of the mud and improving the efficiency

Pending Publication Date: 2020-09-22
HUBEI PETROKH MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With more and more attention paid to petroleum environmental protection, many countries have enacted relevant laws and regulations to impose very strict restrictions on the discharge of drilling waste. Some drilling industries have implemented centralized landfill, in-situ solidification or wellbore reinjection Such traditional treatment methods cannot fundamentally realize the harmless treatment of waste oil-based drilling fluid, nor can the useful resources in it be reused again, and cannot meet the current environmental protection requirements

Method used

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  • Oil base mud and landing oil sand treatment device and technology
  • Oil base mud and landing oil sand treatment device and technology
  • Oil base mud and landing oil sand treatment device and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, the oil-based mud treated in this embodiment has an oil content of about 30%, a treatment process for oil-based mud and ground oil sand, which is characterized in that it is carried out according to the following steps:

[0037] S1: Pass the oil-based mud and ground oil sand into the extraction tank through the mud feed port one;

[0038] S2: Adjust the temperature inside the extraction kettle 1 to 38°C, adjust the pressure inside the extraction kettle 1 to 8.5MPa, feed the extraction agent and co-extraction agent into the feed pipe 1 and feed pipe 2 respectively, 15ml of extractant per gram of mud , the ratio of extraction agent to co-extraction agent is 45:1, the extraction agent is CO2, and the co-extraction agent includes: 12 parts of ethanol, 10 parts of ethyl propionate; 6 parts of propiophenone;

[0039] S3: While feeding the extraction agent and co-extraction agent, rotate the rotating rod at a speed of 20r / s, and the mixing plate mixes the mud wit...

Embodiment 2

[0043] Embodiment 2, the oil-based mud treated in this embodiment has an oil content of about 30%, a treatment process for oil-based mud and ground oil sand, which is characterized in that it is carried out according to the following steps:

[0044] S1: Pass the oil-based mud into the extraction tank through the mud feed port one;

[0045] S2: Adjust the temperature inside the extraction kettle 1 to 42°C, adjust the pressure inside the extraction kettle 1 to 9MPa, feed the extraction agent and the co-extraction agent into the feed pipe 1 and the feed pipe 2 respectively, 18ml of extractant per gram of mud, The ratio of extraction agent to co-extraction agent is 42:1, the extraction agent is CO2, and the co-extraction agent includes: 12 parts of ethanol, 10 parts of ethyl propionate; 6 parts of propiophenone;

[0046] S3: While feeding the extraction agent and co-extraction agent, rotate the rotating rod at a speed of 20r / s, and the mixing plate mixes the mud with the extractio...

Embodiment 3

[0050] Embodiment 3, the oil-based mud treated in this embodiment has an oil content of about 30%, a treatment process for oil-based mud and ground oil sand, which is characterized in that it is carried out according to the following steps:

[0051] S1: Pass the oil-based mud into the extraction tank through the mud feed port one;

[0052] S2: Adjust the temperature inside the extraction tank 1 to 47°C, adjust the pressure inside the extraction tank 1 to 9.5MPa, feed the extractant and co-extractant into the feed pipe 1 and feed pipe 2 respectively, 16ml of extractant per gram of mud , the ratio of extractant to co-extractant is 38:1, the extractant is CO2, and the co-extractant includes: 12 parts of ethanol, 10 parts of ethyl propionate; 6 parts of propiophenone;

[0053] S3: While feeding the extraction agent and co-extraction agent, rotate the rotating rod at a speed of 20r / s, and the mixing plate mixes the mud with the extraction agent and co-extraction agent. The extracti...

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Abstract

The invention relates to the technical field of oil sludge treatment, and discloses an oil base mud and landing oil sand treatment device and technology. A first extraction kettle, a second extractionkettle, a mud cleaning deposition tank and a centrifugal dryer are included. A mixing assembly is arranged in the first extraction kettle and comprises a first feeding pipe, a second feeding pipe anda discharging pipe. The discharging pipe stretches into the first extraction kettle. A rotation rod is rotationally connected in the first extraction kettle. The end portion of the rotation rod is connected with a mixing piece mixing disc located above the discharging pipe. The oil base mud and landing oil sand treatment device and technology have the following advantages and effects that an extraction agent and a collaborative extraction agent are injected into a tank, the extraction effect is improved, the extraction agent and the collaborative extraction agent which upwards flow are scattered on the rotating mixing disc, the contact area with mud is increased, and the extraction effect is improved; and in addition, oil base mud is sequentially extracted through supercritical CO2 and supercritical n-butane or iso-butane, light oil and heavy oil in the oil base mud are extracted, and the oil content of the mud is reduced.

Description

technical field [0001] The invention relates to the technical field of oil sludge treatment, in particular to a treatment device and process for oil-based mud and ground oil sand. Background technique [0002] Waste oil-based mud is also called waste oil-based drilling fluid. The composition is relatively complex, and generally contains heavy metals, acids, alkalis, polymer compounds, and a large amount of oil and drilling cuttings. These substances are usually difficult to be naturally decomposed by microorganisms in the environment. Disposal will cause serious harm to people, animals and the environment. If the base oil can be recovered, treated and reused, certain economic benefits will be obtained. [0003] With more and more attention paid to petroleum environmental protection, many countries have enacted relevant laws and regulations to impose very strict restrictions on the discharge of drilling waste. Some drilling industries have implemented centralized landfill, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B41/00B01D11/02B01F7/26B01F27/93
CPCE21B41/005B01D11/0284B01F27/93
Inventor 王雅东朱元龙
Owner HUBEI PETROKH MACHINE MFG
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