Waxing Point (WAT) and Melting Point (WDT)

Breakthrough in Crude Oil Testing

As a world leader in developing low-temperature flow performance testing methods, Phase Technology has a long and remarkable history, and has now expanded its capabilities to include key measurements of crude oil: wax precipitation point (WAT).

The wax precipitation point, also known as the cloud point, is the temperature at which solid wax first precipitates from a crude oil sample when cooled under specified test conditions.

Similarly, the wax melting point (WDT) is the temperature at which the final wax solid melts into a liquid during the heating cycle.

The subjective and tedious test has ended

So far, attempting to determine the wax precipitation point or cloud point of crude oil has been an inaccurate, monotonous, and subjective process. I have tried various manual methods, but they are all difficult and time-consuming, resulting in unacceptable errors in the results.

The newly launched WAT-70Xi analyzer by Phase Technology has revolutionized the upstream and midstream oil industry. It is the world's first and only fully automated analyzer for measuring crude oil WAT and WDT. Based on ASTM D5773, our unique optical scintillation technology detects phase changes with extremely high sensitivity and accuracy.

Fast detection speed, no need to set or clean

This important scientific breakthrough means that even the darkest and most opaque samples can now be easily tested with an accuracy of 1.0 ℃. Just load the sample, the rest will be completed by the analyzer, and the test can be completed in only 20-40 minutes. No need for time-consuming manual settings, automatic cleaning after each test.

Trustworthy 70Xi platform design

The new WAT analyzer is built on the 70Xi series platform and has the characteristics of time-saving and high efficiency.

Speed and accuracy are beneficial for the upstream and CNPC industries

Detecting WAT and WDT

Two key test parameters help to understand the properties of crude oil and determine the rate of wax deposition and melting.

Faster than all other testing methods

Results can be obtained in just 20-40 minutes, while the average testing time for other methods is a few hours.

Test opaque samples

Enhanced optical structure can 'see' dark samples

Self cleaning

Automatically rinse with solvent after each test

No manual setting required

Simply inject the sample directly into the analyzer to start the testing run

Superior accuracy

Repeatability 1.0 ℃

More sensitive

Controllable automated testing methods ensure that report results are not subjective

Rich in information and real-time test results

The complete phase diagram (circuit) clearly illustrates the relative formation of WAT, wax, and WDT.

Intuitive and easy-to-use interface

Full color 15 inch high-resolution touch screen, one click preset "Favorites".

application

The wax precipitation point (WAT) and wax melting point (WDT) are helpful in predicting the occurrence of wax deposition in crude oil, and are of great significance to upstream and midstream petroleum enterprises.

In oilfield applications, WAT and WDT can help determine the optimal levels of wax crystallization improvers and/or wax deposition inhibitors. WAT is also an indicator of potential crude oil incompatibility and a monitoring indicator of changes in crude oil quality. Crude oil from the same region may have vastly different characteristics, with varying rates of wax deposition and dissolution. Changes in location, changes in extraction depth, evolution over time, and even methods of production and mixing can all be validated through WAT.

Transporting crude oil and storing it through pipelines, railways, or cruise ships, wax crystallization may limit flow or cause complete blockage. WAT and WDT can help define acceptable operability limits and calculate downtime and costs related to cleaning. WAT is an effective tool for accurately predicting wax deposition in pipelines and storage tanks, with enormous potential for cost savings. The design and development of subsea and onshore pipeline systems, as well as the implementation of wax restoration solutions, have benefited from the analysis of WAT data.