Oil-sand separation testing equipment for thickened oil and separation method thereof

Abstract

The invention discloses oil-sand separation testing equipment for thickened oil and a separation method thereof. The oil-sand separation testing equipment comprises a constant temperature water-bath pan (1), a vacuum pumping filter (5), a separating tunnel (4), a filter cup (6) and an electric water pump (9); the bottom of the separating tunnel (4) is inserted into the filter cup (6); the inlet of the constant temperature water-bath pan (1) is connected with a separating tunnel water outlet (4.6) arranged on the separating tunnel (4) through a pipeline, and the outlet of the constant temperature water-bath pan (1) is connected with the inlet on a water pump (9.2) in the electric water pump (9) through the pipeline. The oil-sand separation testing equipment overcomes the problem that when oil-sand separating tests of indoor thickened oil and super heavy oil are carried out, the sand grains with different granularity in the sand-containing thickened oil cannot be accurately measured in the prior art, can effectively increase the experiment efficiency and precision during an oil-sand separating experiment process, and reduces the experiment failure number due to thickened oil flowing and difficult filtering.

Description

technical field [0001] The invention relates to the technical field of experimental equipment for oil sand separation in heavy oil, and more specifically relates to the experimental equipment and separation method for oil sand separation of heavy oil. Background technique [0002] Heavy oil refers to crude oil with a viscosity greater than 5000 mPa·s under formation conditions. The main characteristics of heavy oil are high relative density, high viscosity, and poor fluidity, often showing non-Newtonian characteristics; meanwhile, heavy oil reservoirs are lithologically loose. Sandstone and pebble sandstone reservoirs, heavy oil has high viscosity and strong sand-carrying ability, and the production of heavy oil is generally more severe. According to the viscosity-temperature characteristics of heavy oil, it can be known that the viscosity of heavy oil will decrease significantly when the temperature rises , increase the fluidity of heavy oil. [0003] For the exploitation ...

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Problems solved by technology

[0003] For the exploitation of heavy oil or super heavy oil, perforation completion, liner completion and gravel packing completion are generally used. When evaluating the sand control effect of liner completion and gravel packing completion, it is necessary to Separation of oil sands from crude oil or ultra-heavy oil can more accurately measure the amount of sand produced from crude oil; at present, the separation of oil sands from heavy oil and ultra-heavy oil indoors uses chemical extraction methods, which cannot extract the wax in heavy oil, and the measurement of sand content is inaccurate. and slow extraction

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