Water injection experimental device and method for automatic crude oil sampling system

Abstract

The invention relates to a water injection experimental device and method for automatic crude oil sampling systems, belonging to the technical field of pipeline system. The water injection experimental device is a sled as a whole; a water inlet of the water injection experimental device is connected with a water pipe, and a water outlet of the water injection experimental device is connected witha water injection hole of a crude oil main pipe. The water injection experimental device, on a connecting pipeline from the water inlet to the water outlet, is provided with a first manual shut-off valve, a first pressure gauge, a filter, a second pressure gauge, a water injection pump, a third pressure gauge, a flow meter, a check valve, and a second manual shut-off valve in sequence. The connecting pipeline is connected with a regulating pipeline between the outlet of the water injection pump and the third pressure gauge to regulate the flow rate of the pressurized water. The device can meetthe requirements of water injection tests of all the automatic crude oil sampling systems in the same project, match different water injection volume ranges, eliminate the influence of the return flow of the crude oil medium caused by the failure of a connecting valve, and improve the safety and reliability of the pipeline operation.

Description

technical field [0001] The invention relates to a water injection experiment device and method for a crude oil automatic sampling system in a pipeline station and belongs to the technical field of pipeline systems. Background technique [0002] According to the requirements of SY / T 5317 "Petroleum Liquid Pipeline Automatic Sampling Method", the entire sampling system needs to be tested after the crude oil automatic sampling system is installed. The process of injecting a certain volume of water and then confirming the total volume of the injected water and the original water represented by the collected sample is a volume balance test. [0003] In the past, the water pump was generally used to directly inject water into the upstream pipeline for sampling. Since the matching flow range of each crude oil automatic sampling system is different, SY / T 5317-2006 "Petroleum Liquid Pipeline Automatic Sampling Method" stipulates in Chapter 15.2: In the water injection experiment of ...

AI Technical Summary

Problems solved by technology

[0005] In previous projects, a connection valve was reserved at the water injection port of the crude oil pipeline. When the connection valve at the water injection port fails, the crude oil medium in the pipeline will flow into the water injection device in reverse, which will affect the accuracy of water injection and the safe and stable operation of the water injection device.

Images