Learning Centre

At RGL, our passion for learning is strong. We’ve dedicated this space to sharing our knowledge base.

Whiteboard Sessions with RGL

At RGL, whiteboard sessions are how some of our best ideas come to life. Join us as our team brings you broadcasts featuring our in-house industry experts!

FCD Completions and How to Mitigate Associated Challenges








Flow control devices are used in complex completions to optimize production in a reservoir. However, it is not a matter of setting and forgetting the device. Join us as RGL’s expert Completions Engineer Alberto A. Uzcátegui breaks down the applications of FCDs and what challenges are faced by those who operate them. The discussion will review mechanical integrity, proper design for reservoir conditions, complications of scaling and erosion, and the advantages of sliding sleeve technologies.
Date: June 9, 2020

Production Shut-In and the Impact on Sand Control During Times of Uncertainty








Sand Control Engineering Manager Dr. Mahdi Mahmoudi leads an industry discussion on Production Shut-In and the Impact on Sand Control During Times of Uncertainty. “Unprecedented,” “unpredictable,” and “black swan event” are among the common buzz words used to describe the chain of the events we have seen in the past few weeks. History has repeated itself and we were not any more prepared for it this time around. So far, the only effective method to deal with COVID-19 is what was proven successful back in the 1918 Spanish flu pandemic—physical distancing! Our industry has entered one of its darkest eras. We have never seen a negative oil price in more than a century in the history of the oil and gas industry. One of the most difficult decisions we face now is the fact that it may be more economical to shut-in the production rather than producing and selling at a loss. The biggest problem is that our wells do not come with magical remote controls featuring “on/off” buttons. This open industry discussion dives into some of the complexities of short and long period shut-in on thermal heavy oil production, with a special emphasis on the implication of shut-in on flow control and sand control products.
Date: May 19, 2020

Technical Presentations

We believe that fostering collaboration benefits our industry as we explore ways to produce wells better. We look forward to working with our industry partners.


Building Data-Driven Permanent Real-Time Full Wellbore Flow Monitoring Using Hybrid Distributed Fibre-Optic Simultaneous Vibration and Temperature Sensing Technology
Authors: Mahdi Mahmoudi, RGL Reservoir Management Inc. and Daniel Keough, Precise Downhole Services Ltd.
Presented at SPE Workshop: Using Instrumentation and Data to Optimize Thermal Operations Tuesday, June 4, 2019 Calgary, Alberta, Canada

Unsupervised and Self-adaptive Algorithm for Particle Size Distribution Clustering
Authors: Hossein Izadi, Vahidoddin Fattahpour, Morteza Roostaei, Mahdi Mahmoudi, Noel Devere-Bennett
Presented at GeoConvention 2019 Tuesday, May 14, 2019 Calgary, Alberta, Canada

 

Slotted Liner 101

Different types of oil need different types of equipment. Heavy oil is found in parts of the United States, Canada, Columbia, Venezuela, Mexico, Abu Dhabi, China, Russia, Australia, and Africa. Heavy oil is filled with sand and other sedimentary material. The slotted pipes are used to filter more than 98% of the sand out while the well is being pumped.

Straight vs. Seamed Slot:
RGL produces two styles of slots: straight and seamed.
Straight slots are the first type of slots created in liners, and they are cut with equal width through the wall of the pipe. Specified where sand grain bridging at the slot is not of major importance, straight slots are more wear-resistant than seamed slots and are less costly to produce.
Seamed slots are milled wider on the pipe interior and are self-cleaning to help prevent plugging. They are narrow at the liner surface and increase in width at the interior, letting sand that does enter pass easily through the slots without plugging. RGL’s equipment has the capability to produce seamed slotting at an angle of 6°.

The width of the slots should be some two to three times the diameter of medium-sized sand particles. Our slots range in width from 0.010 (10,000th) of an inch up to 0.250 (one quarter) of an inch.
Slot lengths are precision-cut at high production rates, and they can be matched to your precise specifications in lengths of 1.5 to 2 inches, depending on slot width.

Unless otherwise specified, slotted liners are cut with an even number of rows. This enables the rows to be staggered to preserve most of the pipe's original strength and to maintain a 3% open area. When slots are evenly distributed over the pipe surface, drainage is more efficient.

  1. 1.5 inches in length on the interior diameter for slot widths up to 0.028 inches.
  2. 2.0 inches in length on the interior diameter for slot widths from 0.038 to 0.250 inches.
  3. 2.0 inches in length on the interior diameter for slot widths from 0.025 to 0.028 inches are available on request.

The number of slots per foot of pipe is determined by calculating the number required to achieve the necessary percentage of open area on the pipe's outer surface.  

See our Open Area Calculator to determine open area based on your specifications. For assistance in determining your ideal slot pattern, please contact us.

Slotted Liner Open Flow Area Calculator

The Slotted Liner Open Flow Area Calculator provides a means for identifying the percentage of open area on the outside diameter of a pipe.

The number of slots per foot of pipe is determined by calculating the number required to achieve the necessary percentage of open area on the pipe's outer surface. For assistance in determining your ideal slot pattern please contact us.

RGL’s Slotted Liner Open Flow Area Calculator can help you determine open area based on your specifications.

Contact RGL

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Contact us at 1.844.801.2400 or send us a message below