Recovery treatment device for aging oil of oil fields

A technology for recycling and aging oil, which is only applied in the direction of multi-stage series refining process treatment, etc. It can solve the problems of shortening the service life of equipment, crossing the electric field, increasing the degree of emulsification of crude oil in the system, and achieves the effect of convenient assembly and relocation

Inactive Publication Date: 2011-05-25
惠博普能源技术有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned problems have different degrees in different aging oils, and the content of components is also different. The existence of these components will cause the water content of the purified oil to exceed the standard, and the oil content of the extracted sewage will exceed the standard. It brings great hidden dangers to the crude oil dehydration treatment equipment, which is likely to cause accidents such as electric tripping and crossing the electric field, shortening the service life of the equipment; a large number of aging oil transition layers exist in the system, wasting the effective space of the processing equipment, and seriously affecting the oil field normal production
[0007] At present, in terms of aging oil treatment in the industry, there is no special process equipment to solve the problem. More solutions are to adopt the method of back-mixing treatment, but this met...

Method used

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  • Recovery treatment device for aging oil of oil fields
  • Recovery treatment device for aging oil of oil fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: The aging oil is lifted into the skid by the screw lift pump 1, and the pressure is increased to 0.4MPa. The outlet of the screw pump 1 is connected to the blue filter 2 through a pipe. The filter is provided with a bypass pipeline, and the filter outlet is connected to the flow meter 3 through a pipe. System processing flow is about 2 ~ 3m 3 / h, the main line behind the flow meter is equipped with a hot water mixing port 15, which is drawn from the on-site 100°C electric dehydration outlet, and after the temperature rises to 50°C, it enters the chemical static mixer 5 on the main line to make the demulsifier and the mixed hot water Fully mixed in the system, the dosing point 4 is set between the water mixing port and the static mixer, the outlet of the static mixer is connected to the inlet of the separation heat exchanger 6 through the pipe, the temperature of the crude oil is raised from 50°C to higher than 85°C, and the inlet of the heat exchanger is ta...

Embodiment 2

[0021] Embodiment 2: The aging oil is lifted into the skid by the screw lift pump 1, and the pressure is increased to 0.5 MPa. The outlet of the screw pump 1 is connected to the blue filter 2 through a pipe. The filter is provided with a bypass pipeline, and the filter outlet is connected to the flow meter 3 through a pipe. The system handles a flow of about 2m 3 / h, there is a dosing point behind the flowmeter, and then it enters the chemical static mixer 5 on the main line to fully mix the demulsifier and the hot water mixed in the system, and the outlet of the static mixer is connected to the inlet of the separation heat exchanger 6 through the pipe , the crude oil temperature rises from 40°C to higher than 75°C, and the inlet of the heat exchanger enters in a tangential direction. A slag discharge port 18 is provided at the bottom of the heat exchanger to remove a small amount of solid residue in the aged oil. The pipeline 7 directly enters the vortex type oil-water separa...

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Abstract

The invention discloses a recovery treatment device for aging oil of oil fields, which is mainly used for the centralized treatment for difficultly treated aging oil of oil and gas fields, and the recovery of crude oil resources. According to the sequence of process flow, the recovery treatment device for the aging oil mainly comprises a material hoisting system, a filtration system, a material-adding system, a heating/heat exchange system, a solid-liquid separation centrifuge, a slag collection box, an oil-water buffer tank and an oil-water separator. Heating/heat exchange and solid-liquid separation treatment processes can be selected according to the specific situation of aging oil to be treated; due to a skid-mounted design, the device is high in motility; the process can effectively treat the aging oil of oil field stations, recover effluent oil, and meter treated oil and water to count recovery efficiency; the recovered sewage can enter a sewage treatment system; and the water content ratio of recovered oil can reach the standard of detergent oil.

Description

technical field [0001] The invention relates to an aging oil recovery and treatment device in the oil field exploitation industry, which is suitable for the treatment of various aging oils in land and offshore oil and gas fields. Background technique [0002] With the development of oilfields in the middle and later stages, a large number of difficult-to-handle aging oils have appeared in major continental oilfields and offshore oil production platforms, resulting in a waste of equipment processing capacity and bringing hidden dangers to the system. There are three main sources of aging oil, waste oil recovered from sewage sedimentation, flotation and other treatment systems, oil-water transition layer in dehydrator, highly emulsified crude oil emulsion and ground oil during drilling, operation and transportation, sewage / The dirty oil in the dirty oil recovery pool. According to the analysis of the above sources, the composition of aging oil emulsion is extremely complex, ...

Claims

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Application Information

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IPC IPC(8): C10G53/02
Inventor 黄松孙河生孙飞张维
Owner 惠博普能源技术有限公司
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