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Oil-sand separating process

An oil sand and process technology, applied in the restoration of polluted soil and other directions, can solve problems such as environmental pollution and oily dirt is not good, and achieve the effect of solving pollution, saving resources and separating thoroughly.

Inactive Publication Date: 2002-04-17
李正夫 +4
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Problems solved by technology

[0002] In the process of oil production, the oily sewage discharged from well washing and operation, the oily sewage discharged in the accident state, the oily sludge scattered on the wellhead, cleaning oil tanks, and oil pools will all pollute the environment to a certain extent. There is no better way to deal with this kind of oily dirt

Method used

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  • Oil-sand separating process
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Embodiment Construction

[0016] In the process of oil production, there are often a large amount of sediment at the bottom of waste oil pools and oil tanks, which are plate-shaped and hard. This type of oily sand solid is firstly broken by water cutting. It can be carried out with a hydraulic cutter. Under the action of high-pressure, high-speed water flow and a cutting knife, the sediment is cut and broken, and lifted to the sand and gravel separation device by a screw pump, and stirred into a suspended state with a mixer to form an oil-sand-water mixture. Before entering the sand and gravel separation device, set up a grill to remove stone debris larger than 50 mm. The sand and gravel separation device is a bucket container with a stirrer, by stirring and adding water at a certain temperature (30-60) °C (the ratio of total water to oil sand is (075-15:1), the oil is reduced. The viscosity between the sand separates the relatively clean gravel from the oil and water. At the same time, the upper laye...

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Abstract

The oil-sand separating process for oil and sand mixture produced during oil extracting, oil storage and oil production includes the steps of: separating grit from oil and sand mixture; homogenization; air floating treatment; sand deposition; and centrifugal separation. The process has the advantages of reasonable technological process, simple equipment, low cost, easy operation and complete oil-sand separation. The process may be used to eliminate the environment pollution of oil-bearing sludge while recovering dispersed oil and saving resource.

Description

1. Technical field [0001] The invention belongs to an oil-sand separation process, which is mainly used to separate the oil-sand mixture produced in the process of oil recovery, oil storage and oil production in an oil field. 2. Background technology [0002] In the process of oil production, the oily sewage discharged from well washing and operation, the oily sewage discharged in the accident state, the oily sludge scattered on the wellhead, cleaning oil tanks, and oil pools will all pollute the environment to a certain extent. There is no better way to deal with this type of oily dirt. 3. Contents of the invention [0003] The object of the present invention is to provide an oil sand separation process with reasonable process, simple equipment, convenient operation and no environmental pollution. [0004] The technical solution of the present invention is: an oil sand separation process, characterized in that: comprising the following steps: [0005] a. Sand and gravel...

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Application Information

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IPC IPC(8): B09C1/00
Inventor 李正夫武跃陈辅利李群李峰
Owner 李正夫