Reliable and accurate sampling system for natural gas applications

NG plant with measuring lines shows reliable and accurate sampling system for LNG applications.

My previous article in this series explained what are the main issues in obtaining a representative sample in NG applications.

This case study demonstrates a reliable sampling solution currently used by plant operators. It helps plant operators to obtain representative samples.

Continue reading

What are the main issues in obtaining a representative sample in NG applications?

NG plant with measuring lines shows issues in obtaining representative sample.

In this article, I present the major issues associated with obtaining a representative sample in NG applications. The article explains what is representative sampling, and why sampling is important in the natural gas industry. I discuss factors that determine what should be a suitable sampling frequency in a process, and which sampling standards can be followed to ensure representative sampling.

Several major issues in obtaining a representative sample, and common design flaws that lead to poor sampling are presented and discussed. In addition, I present how a suitable probe length can be determined and how the probe should be installed. The different types of commonly used sampling probes are also compared and discussed.

Continue reading

Case Study: High temperature DBB valves for steam injection – A common enhanced oil recovery method

Infographic of solar steam process (steam injection) as an enhanced oil recovery application.

Case study about high temperature Double Block & Bleed valves for steam injection. We have successfully installed the DBB valves at the Amal oilfield in Oman which uses “green” steam, generated at the Miraah solar thermal facility.

Continue reading

5 important facts for a safe and transparent (remote) third-party inspection

Safe and transparent through your third-party inspection (remote inspection).

We are all facing many restrictions due to the pandemic. Therefore, we need to find ways to still provide the best possible support to our customers. One digital service that our customers can use is our third party inspections – better said remote inspections.
Our customers can use the remote visual inspection to check the valve quality before shipping.

Continue reading

Plant standards in the oil and gas industry

Factory standards in the oil and gas industry and comparison with tapas.

I have now been in the field for more than 25 years and support my customers exclusively in Germany. I have noticed that the measurement technology in the plants is carried out very differently. Just as there are endless variants of Tapas, there are also many different types of measurement technology. As a passionate Tapas connoisseur and with over 30 years of professional experience, I know both areas very well.

Continue reading

Close-coupled installation vs. conventional installation

Close-coupled installation versus conventional installation.

In times of budget cuts and lack of skilled workers, it is all the more important to use the right product solutions in your plant. In my current article I would like to explain the advantages of a close-coupled installation in the area of one of our products, “monoflanges”. That can have a very positive effect on your maintenance and operating work.

Continue reading

Chemical injection quill for oil & gas application

Chemical injection quill for oil and gas application.

To support users in their proper planning and technical evaluation, I would like to share some information about one less-familiar product in the industry, the chemical injection quill.

Continue reading

DBB system in instrument piping – a cost effective safety solution

DBB system in instrument piping – a cost effective safety solution (BA Series).

I remember very well when we started the development of our Double Block & Bleed Valve Series. We called it “VariAS-Blocks”. Production started 20 years ago, and we have made many improvements since there.

We based the design on the standard SHELL MESC SPE 77/165 (which the MESC SPE 77/170 superseded) and EEMUA 182.

Continue reading

Cryogenic valves for LNG application – Part 2

Cryogenic valves - LNG application.

In our second part of the cryogenic valve series I would like to responsive on questions like “What are the challenges of using cryogenic?”, “Selecting a valve for cryogenic service.”, “How can engineers ensure tightness of cryogenic valves?” and “What should engineers pay attention to during assembly of cryogenic valves?”.

Continue reading

Cryogenic valves for LNG application – Part 1

Cryogenic valves - LNG application.

One of our customers needed a primary isolation valve for a pressure measurement on a container ship. The ship uses natural gas power. The valve had to meet the Fire Safe API requirements. It also had to pass a cryogenic test with liquid nitrogen (-196 ° C). The container ship rides under the American flag. Thus, an independent examiner had to administer the test. This examiner came from the American Bureau of Shipping (ABS) and the US Coast Guard.

Continue reading