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Experimental method for cyclone desanding of high-viscosity crude oil

An experimental method, the technology of cyclone sand removal, applied in the direction of weighing by removing a certain component

Pending Publication Date: 2022-06-24
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Few scholars have specifically studied the use of cyclones to remove sand in high-viscosity crude oil, and there is no conclusion to prove the sand removal effect under different conditions of heavy oil viscosity, water content, air entrainment rate and dosage.

Method used

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  • Experimental method for cyclone desanding of high-viscosity crude oil

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Embodiment Construction

[0014] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments Parts of the present invention are examples, not all examples.

[0015] The experiment was carried out under the operating conditions of temperature of 60°C, moisture content of 40%, dose of demulsifier of 70ppm, and pipeline flow rate of 1.5m / s:

[0016] like figure 1 As shown, the present invention is an experimental device for sand removal of high-viscosity crude oil. In the experiment, the effect of cyclone sand removal is obtained by changing influencing factors such as fluid properties and operating conditions. Include the following steps:

[0017] S1: Add 5L of oil-water mixture (3L of crude oil, 2L of salin...

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Abstract

The invention discloses an experimental method for cyclone desanding of high-viscosity crude oil, and relates to the technical field of petroleum processing. The invention discloses a cyclone desanding device for high-viscosity crude oil. The cyclone desanding device mainly comprises an oil-water mixed heating area, a pump pressurizing area, a cyclone desanding area and a compressor simulation associated gas area. The oil-water mixing and heating area can be used for heating and stirring to generate oil-water emulsion; the pump pressurization area provides energy for the mixed oil liquid; the mixed liquid enters a cyclone desanding area to separate out sand adhered in the oil-water mixed liquid, and a valve for controlling split ratio and high-pressure operation is arranged in the cyclone desanding area; the associated gas area can be used for researching the desanding effect of gas-liquid mixed transportation under the action of the cyclone. The invention discloses an experimental method for cyclone desanding of high-viscosity crude oil, and provides a set of multifunctional desanding process which is used for exploring the influence of factors such as inlet pressure, feeding flow, feeding particle parameters, feeding fluid parameters and temperature of a cyclone on desanding of the cyclone, and suitable operation parameters and operation conditions can be determined, so that desanding of the cyclone is efficient.

Description

technical field [0001] The invention relates to the technical field of petroleum processing, and is especially suitable for an experimental method for sand removal of high-viscosity crude oil. Background technique [0002] my country has abundant heavy oil resources, but due to the complexity of the formation and the influence of construction, the formation sand often enters the surface process equipment with oil and gas extraction. The harm of sand in pipelines and equipment is huge, and it is easy to cause sedimentation, block pipelines and process equipment, and aggravate the corrosion of pipelines, valves and containers. Sand mixing in heavy oil causes huge economic losses every year, and the problem of sand removal needs to be solved urgently. [0003] For more than 100 years, the hydrocyclone has been widely used in mineral processing, petrochemical and other industries. The hydrocyclone has a simple structure, light weight, small footprint, no transmission parts and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 敬加强张文张世坚
Owner SOUTHWEST PETROLEUM UNIV
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