Controlling Pressure when Testing Oil and Gas Well Bore Cement

For those not familiar with the oil & gas drilling process, the cement that is between the well bore and outside of the well casing is critical to the overall integrity of the well. PetroWiki defines its role:

Cement is used to hold casing in place and to prevent fluid migration between subsurface formations.

TESCOM ER5000 Series Electropneumatic Controller

TESCOM ER5000 Series Electropneumatic Controller

Controlling the pressure is very important in the cement curing process to meet the specifications outlined in API and ISO standards. Improper curing can lead to well integrity issues, which may in turn affect safety, environmental, and production performance.

This 1:51 YouTube video, Cement Analyzer Application: Be Confident that Your Cement Will Perform as Specified, describes the operation of the TESCOM ER5000 series electropneumatic controller.

It accurately controls the pressure when testing the cement at the same pressures it will experience when pumped downhole—regardless of temperature or density variations. Continue Reading

Getting Your Brownfield Automation Project Approved

Emerson's John Dolenc

Author: John Dolenc

Improving operational performance is a good area to look for financial improvements to justify replacing your old control system. Almost all process units have operational issues that can be improved to provide better financial performance. Automation may be a large contributor to financial improvements by addressing specific operational issues and poor key performance indicator (KPI) performance through control improvements.

Those of us that have run process operational units, develop operating strategies or have had to troubleshoot poor operating performance understand the important role process automation plays in running a process unit at optimal performance. Continue Reading

Submit Your Presentation Abstract for Emerson Exchange Brussels 2016

Over the past several weeks we have been featuring Emerson experts who will be presenting at the October 12-16 Emerson Exchange conference in Denver, Colorado here in the USA.

If you are located in Europe, the Middle East or Africa that may be further than you want to travel to connect with the experts and share your expertise.

The good news is that an Emerson Exchange conference will take place in Brussels, Belgium on April 12-14, 2016. This conference provides an opportunity to understand what the industry is doing to compete in challenging economic times through numerous workshops, presentations, industry forums, short courses, technology exhibits and product roadmaps.


The call for presentations is now open and will be until September 30th. If you submit an abstract of your presentation and it is approved by the Board of Directors, your registration fees for the conference will be waived (for one person for each accepted presentation).

The Board offers these guidelines the types of presentations sought by the conference attendees: Continue Reading

Optimizing Multi-well Gas Lift Operations

As oil prices have remained lower for many months, many oil & gas producers have shifted their priorities from new production to optimizing existing production and reducing operating costs with the assets currently in place.

Emerson's Lou Heavner

In the quick, 2-minute video, Optimizing Oil & Gas Production, Emerson’s Lou Heavner describes how model predictive control (MPC) optimizer technology is being applied to optimize gas lift operations on producing oil wells.

Lou explains that optimized gas lift operations begin with reliable and accurate flow measurement on the injected gas being supplied to the wells. For offshore platforms and well pads with multiple wells undergoing gas lifting, it is important to optimize the allocation of the gas, particularly where supply gas is limited.

The MPC controller optimizer uses models created from the well test data to maximize production for the amount of gas injected. The platform or well pad may have constraints such as the volume of produced water, which can be handled by the water treatment process. The constraints are added to the model to reduce the injected gas to the wells with the highest water cuts to address these constraints while maximizing the oil produced. Continue Reading

Crude Oil Property Variability Requires Real-time Analysis

Emerson's Patrick Truesdale

Recently, we highlighted a recorded webinar on the use of online analyzers in refinery blending operations. The presenters, Emerson’s Patrick Truesdale and Topnir SystemsDidier Lambert, also recently wrote a Processing Shale Feedstocks article, Three steps to successful processing of shale and other opportunity feedstocks.

Three steps to successful processing of shale and other opportunity feedstocksIn the article, they highlight the challenge many refiners face who process “opportunity crudes” from shale oil and other non-conventional sources. The feedstock varies much more in terms of density, sulfur content, salt content and volumetric yield than traditional sources of crude oil have varied. They noted for traditional sources, the:

…crude assay would usually change little over time, often measured in years and only happening slowly as the well moved toward the end of its productive life. What is more, one well’s crude assay could frequently serve as a proxy for all other wells within the field.

Stable feedstocks are not the case for shale oil:

So, the type of crude assay that has been valuable in the past is no longer as useful because assays that were once good for many years, if not decades, may no longer hold from one well to another, or from one well to itself a few months hence.

Addressing the challenge of feedstocks with widely variable properties, involves three steps: Continue Reading