Significance Of Quality Skids in The Crude Oil Sampling System

A representative composite sample of the oil for laboratory examination is necessary for pipeline custody transfer, tanker loading/unloading, or refinery input. The purpose of the crude oil sample is to assess the oil's quality at the custody transfer point. Therefore, the API gravity, the quantity of basic sediment and water in the oil, a chemical examination of the oil, and shrinkage should all be determined. In addition, the process ought to be accurate.

Extracting accurate representative samples of crude oil is critical for every refinery or oil company around the globe. However, there are significant cost implications in case of inappropriate sampling. A 1% mistake on a single shipload is worth millions of dollars. As a result, sampling is a significant issue in the field of crude oil sales measurement.

A crude oil sampling system aims to take a tiny sample of the product from a pipeline that contains oil, water, and pollutants in just the same ratios as to flowing stream.

The equipment should be centered on retrieving a sample from the pipeline representing the finished output. It is accomplished by collecting a sample under essentially isokinetic circumstances, i.e., manually fetching a sample from simulated flowing conditions. Thus, sampling non-flowing streams, launch tubes, and other non-reliable sources will not yield a high-quality sample.

Since fluid quality attributes are as important as quantity for fiscal operations, accurate quality analysis and representative sampling are crucial components of any fiscal metering system. 

OGSI's sampling and quality skids enable accurate real-time monitoring of all significant hydrocarbon parameters for natural gas, crude oil, and refined hydrocarbon products. Furthermore, they supply both sampling skids for the metering system as well as a stand-alone sampling system.

In other words, OGSI's sampling systems are of two types: Inline and Fast loop. Let us learn each.

When analyzers are not needed in each project specifications, an automatic sampling system or in-line or insertion sampler is considered the most cost-effective alternative. In addition, maintenance may be done between batches; this is especially true for metering systems used regularly. The insertion sampler is meant to be mounted directly on the sampled pipeline.

Fast Loop Sampling is the most viable approach for applications that require the use of fluid quality analyzers. Because Fast Loop Sampling bypasses the mainline and can be maintained without disrupting the metering process, this proposition is equally valid for pipeline metering systems that run continuously. These systems are used in conjunction with most metering systems and are suited for crude oil, condensate, or refined hydrocarbon products.

Wrapping it up, the efficiency and accuracy of crude oil sampling is the crux of the matter lab tests for any oil company. For more reliable sampling systems, OGSI is the name.