Overview
This case study discusses the use of PRIMIX static mixers to improve operations and profitability in custody transfer pipelines by ensuring accurate and reliable measurements of basic sediment and water (BS&W) in crude oils and hydrocarbons.

Background
Accurate measurement of BS&W is crucial in the oil and gas industry to prevent financial losses. These measurements are typically taken at the wellhead, tank, or during custody transfer. Inaccuracies in these measurements can lead to significant financial discrepancies.

The Challenge
Even a small measurement error of 0.1% can result in substantial financial losses, making accuracy, repeatability, and indisputability of measurements essential.

Design
PRIMIX static mixers are designed to comply with ISO 3171 standards and can be installed horizontally or vertically. They ensure a homogeneous mixture, which is critical for accurate measurement across the entire flow range. Special designs are available for large flow ranges, such as at the end of a well's lifetime.

Solution
PRIMIX static mixers provide a maintenance-free solution that ensures a homogeneous liquid/liquid dispersion. They can be used in various applications, including Lease Automated Custody Transfer (LACT) units, online sampling, automatic sampling, or spot sampling.

Result
The use of PRIMIX static mixers results in accurate and predictable measurements that meet ISO 3171 standards, with no maintenance required.