SU1214136A1 - Installation for preparing commercial petroleum - Google Patents

Description

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This invention relates to oil treatment devices that are being processed, and can be used in the oil and petrochemical industry.

The purpose of the invention is to increase the efficiency of oil treatment and reduce the cost of its preparation.

The drawing shows the scheme of the proposed installation.

The oil treatment plant contains a crude oil supply manifold (not shown) connected to the water discharge tank 1, gas separation stage 2, buffer raw material reservoir 3, preliminary water discharge tank 4, demulsifier batcher 5, raw pump 6, furnace 7, a dropper 8, a sump 9, a dehydration stage, a device 10 for generating acoustic vibrations after a dehydration stage, a fresh water pipe 11, a sump 12, a desalting stage for oil, a device 13 for generating acoustic vibrations after an obesity stage Olivani, heat exchanger 14} process tank 15 and commodity tank 16, oil metering unit 17, drainage water recirculation pipeline 18. The inputs of the devices 10 and 13 are connected to the pipeline 11 of fresh water, and their outputs are installed in pipelines 19 of oil. The acoustic power of the device 13 is 1.5-2.0 times the power of the device 10.

The device works as follows.

Crude oil enters tank 1

where there is a partial separation of water, and then on the stage 2 of gas separation. Before stage 2 of separation, drainage water flows through the pipeline 18 after the sumps of 9 and 12 stages of dehydration and desalting. After step 2 of separation, the emulsion enters the tanks 3 and 4, where the main part of the water is separated from the oil. In the oil after the tank 4 of the preliminary discharge of water, the demulsifier is introduced by the dispenser 5 and the raw material VNIISH Order 816У.8

SHNAL SHSh Patent%, Uzhgorod, Proektna St., 4

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the exhaust pump 6 and through the heat exchanger 14 is sent to the furnace 7, where the oil is heated to improve the process of emulsion destruction. After the furnace 7, the oil enters the septic tanks 9 stages of oil dehydration. After dehydration stage

 oil is introduced to fresh water through an I pipeline (usually water is heated). The freshwater pipeline I is connected to the inlet of the device 10 for generating acoustic oscillations, which is a hydrodynamic emitter of acoustic oscillations. Under the action of acoustic oscillations generated during the operation of the device 10, the process of co-axial flow of formation and fresh water drops is intensified, which. allows to improve the quality of oil after the dewatering stage and to carry out the desalting process with less fresh water. After the device 10, the oil is sent to a sump of the 12th desalting stage, where further separation of water and salts from the oil occurs. After the desalting stage, fresh water is also introduced into the oil, but in smaller quantities (2–3%) than before the desalting stage (3-5%) via pipeline 1 of fresh water, which is also connected to the inlet of the device 13, the output of which installed in the pipeline oil. As a result, the oil is again exposed to acoustic oscillations generated during operation of the device 13. At the same time, the acoustic power of the device 13 is 1.5-2.0 times the acoustic power of the device 10. After the device 13., The prepared oil is directed through the heat exchanger 14 to the process tank 13, and then to the commercial tank 16, where the final water separation takes place and salts from oil. The prepared crude oil through the metering station 17 is sent to the consumer. For the reuse of heat and the demulsifier, a drainage water recycling line 18 is provided.

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Claims (2)

1. INSTALLATION OF PREPARATION OF COMMODITY OIL, including a crude oil supply manifold connected in series to the oil pipeline, a water discharge tank, a gas separation stage, a preliminary water discharge tank, a demulsifier dispenser, a feed pump, an oven, a fresh water pipeline, settling tanks for oil dehydration and desalination stages, a heat exchanger A technological tank and a drainage water recirculation pipeline, characterized in that, in order to increase the efficiency of oil preparation and reduce the cost of its preparation, The assembly is equipped with devices for generating acoustic vibrations located in series after the dehydration stage and the desalination stage, while the inputs of the devices are connected to the fresh water pipeline, and their outputs are installed in the oil pipelines. 2. Installation according to π. 1, characterized in that the acoustic power of the device for generating acoustic vibrations installed after the oil desalination stage is 1.5-2.0 times greater than the power of the device installed after the oil dehydration stage. SU, 1214136