SU783634A1 - Apparatus for sampling gas from pipeline - Google Patents

Description

i

The invention relates to devices for the separation of oil and gas.

In the main invention of auth. St. No. 589561 describes a device for gas extraction from a pipeline, including a cylindrical body, a perforated partition of plates, one of which is installed horizontally, and the other at an angle to it, vertical partitions installed in the case and connected to the ends of a perforated partition.

However, in the prior art, a significant amount of oil is carried away with the gas withdrawn.

This is due to the fact that when gas and oil flows out from under a horizontal perforated partition, a wave is formed when a gas stream is applied to the liquid, the crest of this wave is broken by the gas flow and enters the gas pipeline, resulting in increased oil carryover with the gas to be extracted.

The aim of the invention is to increase the efficiency of the separation of gas from oil.

This is achieved by the fact that the device for the selection of gas from the jpybonovod according to the author. St. No. 589561 is equipped with an additional horizontal partition mounted on a vertical partition under the perforated horizontal partition.

The drawing is a diagram of the longitudinal section of the proposed device.

10 A gas extraction device consists of a cylindrical body 1 connected by ends to a pipeline. In the upper part of the body, inclined perforated perego 5 is installed rarely 2, connected in the middle part of the body with a horizontal perforated partition 3, while between partitions 2 and 3 and the bottom part of the case 1 vertical partitions 4 are installed parallel to the axis of the housing. At a distance of 2 / 3 lengths of the horizontal partition 3 under its end and parallel to it at a distance of 1/2 the diameter from

25, the lower generatrix of the housing is equipped with a continuous horizontal partition 5. The housing 1 is provided with a nozzle 6 for gas extraction.

The device works as follows.

30 way.

A gas-liquid mixture is supplied to the inlet of the device, consisting of a flow of free gas moving in the upper part of the cylindrical body, gas and liquid traffic jams and a flow of liquid with gas puffing moving below.

The device separates the flow of oil and gas. The free pelvis passes through the openings of the partitions 2 and 3 and moves to the upper part of the cylindrical body 1. The gas-liquid plugs are destroyed when passing between the partitions 4, while the gas partially passes through the openings in the partitions 2 and 3. in the upper case. At the exit from under the partition 3, the liquid moves along the lower part of the housing 1 under the partition 5, and the gas over the partition 5. Thus, a more stable separate flow of oil and gas is achieved in the cylindrical housing. At the same time, the gas flow does not affect the surface of the fluid flow, as a result of which no waves are generated.

From the upper part of the cylindrical body, gas is taken through the nozzle and sent to the gas separator.

Oil from the cylindrical body enters the oil and gas separators where the separation of smaller gas bubbles occurs.

The use of the described construction allows to significantly increase the efficiency of gas separation from the fluid flow in the pipeline.

Claims (1)

1. USSR author's certificate No. 589561, cl. G 01 N 1/22, 1974.