RU33873U1 - End section of the supply pipe - Google Patents

Description

FINAL SECTION OF THE SUPPLY PIPELINE

The proposed utility model relates to a system for collecting and preparing well products at oil fields and can be used to increase the efficiency of separation plants.

Known separation installation, which is an inclined apparatus for phase separation, which is equipped with a flow damper (US Pat. RF No. 2119372, 01 D 19/00, op. 09/27/98).

The disadvantage is that the flow damper is horizontal and does not contribute to reducing ripple and better stratification of the flow, which reduces the efficiency of the separation unit.

Known separation plant, including the final section of the supply pipe — an end phase divider that acts as a stilling collector, a depulsator connected to the process tank and an external drip catcher, the final section of the supply pipe being equipped with segmented visors installed along the upper and lower pipe generators with offset

planes of the upper visors relative to the lower ones (a. with. JS 124830, B01 D19 / 00, on. 07.08.86).

The disadvantage is that due to the relatively low efficiency of the final section of the supply pipe, a depulsator is introduced, thereby increasing the metal consumption of the structure.

IPC 01 D 19/00

Thus, the problem arose of reducing the metal consumption of the equipment complex and improving the operation of the separation plant.

This problem is solved by the fact that the final section of the duct, its pipeline, contains 1 segmented visors, stirring; they are mixed along the upper and lower generatrices of the pipeline; the planes of the upper visors are relatively lower and equipped with a riser in the upper part to divert the gas phase to the process the tank, according to the utility model, is installed downward; with a slope of 0.5 -1 ° in the direction of movement of the gas-liquid mixture.

A slope of 0.5 -1 of the final section of the supply pipe provides almost complete selection of free gas before entering the process tank, which cannot be achieved with its horizontal arrangement. As a result, the final section of the supply pipe combines the functions of a flow damper and a depulsator, thereby ensuring a stable supply of pre-layered oil to the process tank.

The attached figure shows a diagram of a separation installation, where 1 is the final section of the supply pipe, 2 is the technological capacity (separation installation), 3 is a riser, 4 is a gas discharge pipe, 5,6 pipelines.

The work of the final section of the supply pipeline is as follows.

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The gas-liquid mixture enters the final section of the supply pipe 1, which is a soothing reservoir, where the preliminary separation of the liquid phase into oil and water begins with the evolution of gas. The separated gas phase is discharged into the process vessel 2 through the riser 3, located in the upper part of the stilling reservoir 1, through the exhaust pipe 4. The stilling manifold 1 is installed with a downward slope of 0.5 - 1 ° in the direction of movement of the gas-liquid mixture to improve the separation of the gas stream and phase and connected to the process vessel 2. The separated water is sent to the process vessel 2 through a pipe 5 below the input level of the main stream into the process vessel 2. The main stream is supplied to technological capacity 2 through pipeline 6. The separation processes are improved due to the effect of orthokinetic gas flocculation, which consists in the absorption of small gas bubbles by large ones rising from the lower part of the final section of the supply pipe 1 through the steps of the liquid phase created by segments that are placed along the upper generatrix, and increase the contact area between the liquid and gas phases. At the same time, the content of oil products and solid suspended particles in discharged water is reduced by 30% due to the stable and separate input of flows.

The use of the final section of the supply pipeline of the proposed design allows to reduce the production chain, simplify the process of collecting well products and optimize the process in the separation unit.

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Claims (1)

The final section of the supply pipe, containing segmented visors placed along the upper and lower generatrix of the pipeline with the displacement of the planes of the upper visors relative to the lower ones, and equipped in the upper part with a riser to divert the gas phase into the process tank, characterized in that it is installed with a downward slope of 0.5 -1 ° in the direction of movement of the gas-liquid mixture.