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Mining method of oil-bonded sand

A mining method and oil sand technology, applied in the direction of solid separation, etc., can solve the problems of mining site separation, complex equipment, small processing capacity, etc., and achieve the effects of easy lifting and moving, saving transportation costs, and large processing capacity

Inactive Publication Date: 2008-10-01
TIANJIN DEV ZONE LANDUN OILFIELD SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current oil sand mining technology mainly includes washing and deoiling technology, thermal desorption technology, etc. These processes generally have high cost, low efficiency, small processing capacity, complex equipment and cannot be separated at the mining site

Method used

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  • Mining method of oil-bonded sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The solvent oil and the oil sand are mixed and stirred in the mixer at a weight ratio of 0.5, thereby forming a mixture of a solid phase of sediment and a liquid phase composed of an organic solvent and petroleum; the mixture is sent to a filter dryer for Solid and liquid separation; backfill the solid phase separated by the filter dryer; send the liquid phase separated by the filter dryer to the centrifuge again for separation, and use the centrifuge for solid-liquid separation When the liquid phase is removed, the residual solid phase in the liquid phase is removed; the solid phase separated by the centrifuge is sent back to the mixer to form a new solid-liquid mixture; the liquid separated by the centrifuge is The phase is sent to the evaporator at a temperature of 90°C and a pressure of 0.1Mpa to separate the solvent oil and send it back to the mixer and recycle the crude oil separated from the evaporator for use.

Embodiment 2

[0018] Ethyl acetate and oil sand are mixed and stirred in a mixer in a weight ratio of 1, thereby forming a mixture of a solid phase of sediment and a liquid phase composed of organic solvent and petroleum; the mixture is sent to a filter dryer Carry out solid and liquid separation; backfill the solid phase separated by the filter dryer; send the liquid phase separated by the filter to the centrifuge again for separation, and use the centrifuge solid-liquid During separation, the residual solid phase in the liquid phase is removed; the solid phase separated by the centrifuge is returned to the mixer to form a new solid-liquid mixture; the solid phase separated by the centrifuge is The liquid phase is sent to the evaporator at a temperature of 95°C and a pressure of 0.1Mpa to separate the ethyl acetate and send it back to the mixer and recover the crude oil separated from the evaporator use.

Embodiment 3

[0020] Butyl acetate and n-hexane and oil sand are mixed and stirred fully in a mixer with a weight ratio of 2, thereby forming a mixture of a solid phase of sediment and a liquid phase composed of an organic solvent and petroleum; the mixture is sent into The filter drier is used for solid-liquid separation; the solid phase separated by the filter drier is backfilled; the liquid phase separated by the filter drier is sent to the centrifuge again for separation, and the centrifuge is used to During the solid-liquid separation of the machine, the residual solid phase in the liquid phase is removed; the solid phase separated by the centrifuge is sent back to the mixer to form a new solid-liquid mixture; the centrifuge The separated liquid phase is sent to the evaporator, and the n-hexane is separated at a temperature of 85°C and a pressure of 0.1Mpa, and butyl acetate is separated at a temperature of 88°C and a pressure of 0.1Mpa , and then return the separated butyl acetate and...

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Abstract

The invention discloses an oil sand exploiting method which comprises the following steps: an organic solvent and oil sand are mixed and completely agitated in a mixer with the ratio of 0.2 to 2 by weight; the mixture is sent into a drainer for solid and liquid separation; the solidoid that is separated by the drainer is backfilled; the liquidoid that is separated by the drainer is resent into a centrifuge for solid and liquid separation; the solidoid that is separated by the centrifuge is sent back to the mixer; the liquidoid that is separated by the centrifuge is sent into an evaporator for separating the organic solvent, sending the organic solvent back to the mixer and recycling crude oil that is separated by the evaporator. The oil sand exploiting method of the invention can recycle the oil in the oil sand by using the recyclable organic solvent, thus reducing environmental pollution, increasing economic benefits and simultaneously lowering cost, and having high efficiency, large processing capacity and simple equipments, and the oil sand exploiting method can be used for separating in the exploiting scene and saving transportation cost, etc.

Description

technical field [0001] The invention relates to an oil sand mining method. Background technique [0002] Oil sands are one of the unconventional oil resources. Oil sands, also known as tar sands or tar sands, are sand or sandstone containing bitumen or tar, which are unconventional petroleum resources. At present, it is known that the world's recoverable oil sand resources are about 651 billion barrels, accounting for 32% of the world's total recoverable oil, and have become an important part of the world's energy structure. The current oil sand mining processes mainly include washing and deoiling processes, thermal desorption processes, etc. These processes generally have high cost, low efficiency, small processing capacity, complex equipment, and cannot be separated at the mining site. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an oil sand mining method with low cost, high efficie...

Claims

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Application Information

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IPC IPC(8): B03B9/02
Inventor 程秀张辉林大明于胜宇苏元斌
Owner TIANJIN DEV ZONE LANDUN OILFIELD SERVICE
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