SU929149A1 - Apparatus for sumultaneous prepartion of oil, gas and water - Google Patents

Description

(54) DEVICE FOR JOINT PREPARATION OF OIL, GAS AND WATER

one

The invention relates to devices for the combined treatment of oil, gas and produced water and can be used in the oil industry.

A device for purifying oil-containing water is known, which includes a tank divided by partitions into two compartments: filtering and settling. In the filter compartment there are devices for forming transition zones of the oil-water in which the joint preparation of oil and water takes place. Water and oil flows are separated in the settling compartment 1.

The disadvantage of this device is that all the liquid, including that part of the oil, which could be discharged as conditioned from the beginning of the technological cycle, goes through all the stages of preparation. This results in poor performance and capacity utilization rates.

The closest to the proposed technical essence and the achieved result is a device for joint

preparation of oil, gas and water, including a horizontal tank, divided by a vertical transverse partition into the receiving and settling chambers, the nozzle for entering the production of wells with horizontal

5 a distributor with holes, nozzles for gas, oil, water and mechanical impurities and filtering grids 2.

The drawbacks of the known device are that the production, the exit from the perforated, Qirized distributor over the entire horizontal cross section of the chamber, creates a liquid screen that prevents particles from passing from the top to the bottom and also from the bottom to the top. This impairs the effectiveness of pre-separation of products and reduces the performance of the device; the placement of the oil outlet nozzle allows the purified oil to be removed almost from the middle of the settling chamber, which reduces the time for particles to remain in the chamber, resulting in deterioration of the efficiency of oil refining; Failure to use the volume of the catchment chamber for sludge production reduces the capacity utilization rate of the tank and the device's capacity. The purpose of the invention is to improve the performance of the device. The goal is achieved by the fact that the device for the joint preparation of oil, gas and water, including a tank divided by a partition into the receiving and settling chambers, the inlet nozzle, the distributor with holes, the outlet nozzles of gas, oil, water and mechanical impurities, is provided with a detachable a pipeline located on the outlet end of the settling chamber and connected to the water outlet nozzle, the distributor is located in the upper part of the receiving chamber perpendicular to the axis of the tank, and the holes of the distributor are made in as longitudinal multi-slits directed toward the entrance end of the chamber. The drawing shows a device for the joint preparation of oil, gas and water. The device comprises a horizontal cylindrical container 1, divided inside by a partition 2 into a receiving 3 and a settling chamber 4. The partition separating the receiving and settling chambers does not reach the upper and bottom parts of the tank. It is intended for supplying oil from above, and water-oil emulsions - from below from the receiving chamber to the settling chamber. The receiving chamber is provided with a distributor 5 located horizontally across the entire width of the entrance at the top of the receiving chamber and connected to the nozzle 6 for inputting products. The longitudinal multiple slots of the distributor, located on the lateral surface along its entire length, are directed toward the entrance end of the chamber. The chamber is also provided with filtering grids 7, located below the distributor horizontally parallel to each other through a certain distance over the entire cross section of the chamber, with a drainage nozzle 8 located at the outlet in the bottom part of the chamber for the release of mechanical impurities; droplet separator 9 and the nozzle 10 located in the upper part of the chamber, for the removal of gas. The settling chamber is provided with a sedative partition 11, located at the entrance in the bottom part of the chamber, to calm the flow; drainage nozzles 12, located after the sedative baffle, to remove mechanical impurities; Pat: wheel 13, located on the output end of the chamber on the upper level of oil, for the withdrawal of purified oil; detachable-shaped pipe 14 with a pipe 15 for draining purified water located at the outlet end of the chamber. The lower (receiving) perforated part of the split-shaped pipeline is completed in the chamber in the water layer, and the upper part communicates with the gas zone of the chamber. The split-shaped pipeline is designed to maintain the level of oil-water phase separation in the settling chamber and to discharge purified water from it. By turning or replacing the split rack with a branch pipe, it is possible to adjust the height of the oil-water phase separation section in the settling chamber, i.e., to obtain the desired height of the oil-water phase separation level in the chamber. The device works in the following way. Production of wells through the pipe b and the distributor 5 enters the receiving chamber 3 to the upper part of the input end. Production, returning from the input end of the receiving chamber, freely and unhindered, with a significantly reduced speed, is distributed over the entire chamber, and a gravitational separation of production into components occurs. At the end of the receiving chamber 3, conditional oil is poured through the bulkheads / 2 into the settling chamber 4. Water-oil on the emulsion passes filtering grids 7, under. oil-water transition zones are formed, and in these zones particles of oil and mechanical impurities are held up to the critical thickness of the oil layer, and then large drops of oil with mechanical impurities are removed from it and carried under the partition 2 into the settling chamber 4. At the same time, before mechanical sediment 11, mechanical impurities fall out on the bottom part at the exit of the receiving chamber 3, from where they are periodically discharged through the drainage nozzles 8. In the settling chamber 4, the oil particles float and merge with nditsionnoy oil perelivayuscheys of receiving chamber 3. In the settling chamber 4, the oil and water are passed to the output end of the chamber, from which, respectively through the nozzle 13 for the withdrawal of purified oil and detachable -shaped conduit 14 and nozzle 15 for the withdrawal of purified water is discharged from the apparatus. Mechanical impurities from the settling chamber 4 are periodically discharged through the drainage pipe 12. The remaining petroleum gas in the source liquid is discharged through the pipe 10, passing through the drip catcher 9, from which trapped liquid droplets enter the receiving chamber 3. The shape of the dispenser and the arrangement allow it to increase efficient product separation into components and improves device performance. The form of execution and the location of the split-shaped pipeline with a pipe for the discharge of purified water increases the utilization rate of the volume of the container, as a result of which the productivity of the device is improved; Regulation of the height of the phase separation section of the oil supply in the settling chamber makes it possible to obtain the required thickness of the oil and water layer in the chamber, this regulates the flow rate of oil and water, as well as the time they remain in the chamber, which allows stabilizing the separation process and improving the cleaning efficiency. oil and water.

Claims (2)

1. USSR Author's Certificate No. 494176 Cl. On 01 D 17/02, 1976. 2. USSR author's certificate No. 636009, cl. On 01 D 17/04, 1978 (prototype).