SU65000A1 - Method of preventing the formation of emulsions and paraffin deposition in oil wells - Google Patents

Description

The formation of emulsions in oil production occurs as a result of oil production (oil changes and water bursa in 1civalent oil and, mainly, throttling in a fountain choke. Introduction of a demulsifier to the well, at least in front of a throttling fitting, in many cases eliminates emulsion formation, as is known from the laiMSipHixaH practice.

When paraffin oil is extracted, the supercooling due to heat loss caused by gas expansion and the use of light shoulder straps with a pressure drop, in wells, paraffin is lost from crystals in the form of crystals.

Most of the supercooling of oil occurs in the fountain nozzle, due to which solid paraffin behind the fountain nozzle and in oil pipelines of the site is deposited 1s “on the steaks of pipes, blocking the passage of ift.

The proposed method of preventing the formation of emulsions and paraffin deposition in oil wells means that a definite amount of the demulsifier is injected with live steam into the oil ak-va.zhEnu, in order to finely distribute the demulsifier in the oil and 1g of oil for growth. (In parasine waxer.

The drawing shows the schema of y | Sta. No1B1KI for introducing into the well a para-reagent mixture.

According to this scheme, the steam, having passed the first shirt of the reagent measuring device and separating from the condensate, enters the injector, sucking in the adjusted amount of the reagent; the steam reagent mixture from the injector enters the IB well. Pa.R, as a coolant, during condensation heats the oil to a predetermined temperature, & ipearoHT, dispersed in the smallest drops of condensate, has the possibility of very high cTeneiHH mixing with oil, which is not attainable in a simple manner: P1rie1ma1MI.

For (heating one ton of oil with a 20 percent content; emulsion water by 25 °, which in most cases is sufficient to prevent naiphino) sediments, steam consumption is 25 kg, i.e., about 1 kg to raise the temperature of the toads. a swarm of oil by one degree.

The preheat can be brought to any temperature (necessary simultaneously for the emulsion 1WODA.

In the selection of steam pressure, the pressure in the well in front of the throttling nozzle, which depends on the method of oil production, is taken into account.

In some fantastical wells with HIGH pressure and 8H1 and in oil production with high watering, when water is flowing into. free state, it may be advisable to enter the steam-reagent omesi to transfer aa union | p to any, the most convenient point of the general scheme of oil transportation from c1K1vazh1Ins up to current 1-eipByapoB.

The proposed method has the following advantages:

1. Save the reagent due to its thinner separation of oil.

2. Save fuel by combining oil preheating to eliminate paraffin deposits and demulsifying together.

3. Entering the vapor / gas mixture into oil at any and the most convenient point for the purpose of (heating and decomposing the emulsion completely eliminates the metal consumption of the heaters and heat exchangers.

Preliminary Commentary:

The method of emulsification and the loss of paraffin in the oil is 1C1K important, characterized in that the old amount of the demulsifier is injected with a sharp pair into the oil well in order to fine-tune the distribution. demulsifier in oil and "oil heating for dissolved, higher in the Paraffin well.