Loading...

Follow Radial Drilling Blog on Feedspot

Continue with Google
Continue with Facebook
or

Valid

Radial Drilling – A perfect delivery system for chemicals, bacteria or organic EOR solutions?

We have a long held the belief that Radial Drilling could be the best thing to happen to the chemical industry for many years. The use of chemicals, or organic treatments, to enhance oil production and recovery is a well-established mature industry. However, a problem and challenge that has always existed are how to get these solutions out to where you want them, or to where they actually need to be.

Imagine if there was a radial underground pipeline system back to the vertical wellbore, providing the ability to introduce higher volumes of solutions, far out in the formation, exactly where they are needed.

For decades, we’ve seen a multitude of solutions on the market, including:

• Biocides
• Demulsifiers
• Asphaltene Dissolvers and inhibitors
• Emulsion breakers
• Acid
• Paraffin Control Agents
• Iron Sulfide & Sludge Control
• Scale inhibitors
• Surfactants

More recently the emergence of novel bacteria solutions, to either treat problems or enhance production, has many operators excited by results. In a recent communication with a global leader in the deployment of bacteria to enhance hydrocarbon recovery, the quote ‘we believe that the bacteria process will be the killer app for Radial Jet Drilling’ was used.

Whether bacteria is the killer app for Radial Drilling or Radial Drilling becomes the killer app for bacteria, (or other chemical solutions) is something the oil & gas industry should be paying attention to. What’s absolutely certain is that when successfully deployed together, the probability of achieving a solid commercial outcome will be considerably increased.

As the Radial Drilling Consultants business grows and expands, we plan to work with the leaders in various chemical and bacteria organizations, deploying their technologies in tandem with Radial Drilling projects we will be completing around the world. The term ‘no-brainer’ is often highly misused, however, in this case, it seems more than reasonable.

In the late 90’s, when the price of oil was just over $20, one inventor of a Radial Drilling technology had been working with chemicals in the Permian Basin to try and resolve common near wellbore formation damage problems. Working with local specialist companies he developed some novel solutions, however, was constantly frustrated by his inability to get the chemicals where they needed to be.

This is when he had a ‘eureka’ moment. As an engineer, who had drilled and completed wells throughout the US, including off-shore in the Gulf of Mexico, he considered the benefits his chemicals would have If he could mill large holes in the casing and create tunnels out through the damage, into the formation. He then planned to pump his solutions out past the damage, allowing them to flow back to the wellbore, cleaning up the damage on the way.

With Radial Drilling technology evolving so that laterals can be steered, directed and even allowing for a pattern of fishbone laterals to be drilled from one milled casing hole, a new opportunity has been created. There are those who believe that if you can reliably drill these large diameter laterals out into the formation, then the wells wouldn’t require any further stimulation.

Given the minimal incremental cost of introducing chemicals or bacteria at the time of Radial Drilling deployment, there is a compelling case for doing so. A challenge for Radial Drilling systems is selecting the perfect fluid (water) mixture to create the laterals. It is common knowledge that different formations will react differently to the introduction of foreign drilling fluids, creating a scenario where as you solve one problem, you create another.

The emergence of new Radial Drilling technology, that utilizes mechanical drill bits and not high-pressure water to create the lateral tunnels is certainly a technology to keep an eye on. The ViperDrill system from the USA is leading the way in this field and throughout 2018 we will be working with the Viper system and closely monitoring results.

An exciting aspect of the work we will be completing in 2018 is unlocking the formula that will lead to substantially higher production and recovery from established reservoirs. In future blog articles, we will explore the concept of frac’ing down laterals, as this would appear to be another great application for Radial Drilling. As effective as frac’ing can be, frac’ing also has a number of limitations and challenges. Creating tunnels as large as 2” in diameter as a pathway to then initiate a frac down, appears to have many benefits.

As highlighted in previous blog articles and featured on our website (www.radialdrillingconsultant.com), deploying chemicals or bacteria solutions in conjunction with laterals can only happen as Radial Drilling technology matures and reaches the stage where laterals are definitely being created in the first place. We remain highly skeptical of many dubious claims being made by various providers, in terms of lateral lengths being achieved and that they are jetted in a perfectly straight direction.

Radial Drilling Consultants maintains an independent perspective of all the available technology and systems and therefore offer a balanced and unique service to operators. There are many tremendous opportunities and we welcome any feedback or comments from anyone interested in understanding more on this topic.

Darren

The post Radial Drilling – A perfect delivery system for chemicals, bacteria or organic EOR solutions? appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 

Today I’m pleased to be officially launch the Radial Drilling Consultants Website and announce my new business. A business and site dedicated to the Radial Jet Drilling industry. www.radialdrillingconsultant.com

Having spent over a decade working in the Radial Jet Drilling industry, working on many oil & gas wells throughout the world, I believe I’m uniquely positioned to be offering a valuable service in this space.

I’ve witnessed staggering results from wells that have deployed Radial Jet Drilling and I’ve also witnessed many failures, from some very poor technology. 2018 will witness some tremendous breakthroughs in this industry and I look forward to playing a central role in raising awareness and supporting the industry.

I would greatly appreciate any feedback on my site and also appreciate if you could share my site on your social media accounts, (LinkedIn etc) to help me generate awareness of my new business.

Best Regards

Darren Rice

Radial Drilling Consultants website homepage image

The post Launch of the Radial Drilling Consultant website and new business appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 

https://radialdrillingconsultant.com/

Radial Drilling Consultants website homepage image

Today I’m pleased to be officially launch the Radial Drilling Consultants Website and announce my new business.

Having spent over a decade working in the Radial Jet Drilling industry, working on many oil & gas wells throughout the world, I believe I’m uniquely positioned to be offering a valuable service in this space.

I’ve witnessed staggering results from wells that have deployed Radial Jet Drilling and I’ve also witnessed many failures, from some very poor technology. 2018 will witness some tremendous breakthroughs in this industry and I look forward to playing a central role in raising awareness and supporting the industry.

I would greatly appreciate any feedback on my site and also appreciate if you could share my site on your social media accounts, (LinkedIn etc) to help me generate awareness of my new business.

Best Regards

Darren Rice

The post Launch of the Radial Drilling Consultant website and new business appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 

Radial Drilling or Radial Jet Drilling (RJD) has been available for over 20 years, often promoted as a potential ‘step-change’ technology for the Oil & Gas industry.

As countless RJD companies have come and gone, there has been lots of hype, claims made, court cases, and many failures, whilst at the same time many operators (big & small) around the world, have frankly wasted millions of dollars on some very poor technology.

Throughout my ten years working in the industry, I have spoken to well over 200 operators, from all regions of the world, who have tried some variation of RJD on their wells. Of these operators, I can count on one hand the number who have ever achieved any ROI with this technology.

One favourite story was from an operator in Texas, who contracted a leading RJD service company to come and workover a well. Towards the end of the operation, one his of his friends, (who happened to be an old-time driller) came past to take a look at this new technology. He cast an experienced eye over what was being deployed and wasn’t convinced by what he saw. He asked the young RJD equipment operator how many laterals had been jetted/drilled, and was confidently informed that 5 X 300ft laterals had been completed.

As the well wasn’t circulating any cuttings to surface, and after some quick calculations, he asked the equipment operator where all the cuttings were. He was told the cuttings from the 1500ft of laterals, with a lateral diameter of approximately 1”, had fallen down the rathole of the well.

By now the well operator was beginning to doubt the reliability of what he was being told, so he informed the RJD service company operator, that prior to being allowed to leave location, he would have to stay and witness the well being bailed out. The old-timer had already calculated that there wasn’t enough rathole in the well to collect the cuttings from 1500ft of laterals. Needless to say, he wasn’t surprised that after bailing the well, there were absolutely no cuttings at all in the rathole.

Given the nature of how many RJD systems are deployed and the information/indications they display at surface, it’s hard to know if the young RJD operator actually knew that laterals weren’t being jetted. Whether the owners of the RJD company knew, or know, is a question for another day. What is for sure, is that it didn’t take the old-timer driller more than 10 minutes to work it out.

This story leads to the single most important question that needs to be asked when trying to understand where the Radial Jet Drilling Industry is at right now.

‘Is it that RJD doesn’t work, or is it that most of the RJD technology, past & present, has just failed to jet/drill laterals?’

There’s a big difference between these questions, and without much doubt, the answer is that nearly all operators who have deployed technology on their wells, which subsequently saw no increase in production, likely deployed a technology that never actually jetted/drilled any laterals in their formations. However, as in the story above, they will have been told that laterals were successfully drilled and the problem was with their well not responding.

We don’t need to be an expert reservoir or petroleum engineer to work out the likely results from oil & gas wells, if you actually jet/drill multi-laterals of 50ft + in a radial pattern, from a vertical wellbore. There are countless formations around the world, where after decades of primary recovery, more than 90% of the original oil/gas in place is still in place. The Viking formation in Alberta, Canada, and the Spraberry in West Texas, USA, are just two that spring to mind.

The study of formation damage, and understanding of numerous production challenges from hundreds of thousands of wells, is well understood. It is therefore not unrealistic to view the potential of Radial Jet Drilling as a step-change technology.

After a quick search on Google, you can find 10-15 different RJD companies offering an array of services, making a number of bold claims. If you believe what you read on Google then there are thousands of laterals successfully being drilled, laterals are being drilled up to 700ft, and deploying Radial Jet Drilling is a home run.

I’m pretty sure that if the technology was being successfully being deployed, as claimed on various websites, then the roads in Texas, USA, would be full of RJD trucks, just as they were with water and frac trucks when oil was over $100 per barrel.

It’s a fact that developing a technology which is robust enough to reliably operate inside casing sizes of >4.5”, in order to mill through casing, and then have a water jetting system that can actually jet/drill through rock, and penetrate in a controlled (directed) fashion into a formation, is extremely challenging. Even if/when this can be achieved, the next question is can this be done at a cost that provides an ROI for the operator, or provides a better solution or alternative to other existing services available in the oilfield?

My work in the industry has provided me with a unique insight into all of the various technologies, and I am very excited about some of the developments I’m seeing and hearing about. This research leads me to believe that within the next 12-24 months we will see some major breakthroughs, and advances, in this industry.

Quite where Radial Jet Drilling will ultimately fit into the industry is hard to predict. Taken that a working technology/system is being deployed, and depending on how lost cost of deployment becomes, an obvious area is to enhance other technologies. Assuming large diameter multi-lateral tunnels can extend to 100ft+, the implications for frac’ing down such tunnels is considerable. As is the concept for using laterals to deploy specially designed chemicals.

The further these laterals extend, the more we should consider the implications for the technology. If multi-laterals could be jetted out to 300-500ft reliably, then the economics of drilling horizontal wells, requiring multi-stage frac jobs, will surely have to be reviewed. The opportunities are endless.

While we wait for the technology to mature and evolve, I would offer one piece of advice to any operator looking to deploy Radial Jet Drilling on their wells. This would be to insist on having your well bailed at the end of the process, to prove that the laterals you are being told were jetted/drilled, actually were. If there are no cuttings then refuse to pay, or even make this process part of the commercial contract you enter into with the provider you choose to work with.

Darren Rice

http://www.radialdrillingconsultant.com

e. Darren@radialdrillingconsultant.com

Visit me at Linkedin

a picture displaying the results from Radial Jet Drilling on the different layers laterals can be jetted

The post Radial Jet Drilling – Where is the industry at? appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 

Over a recent beer or two in Calgary, Canada, with Arvil Mogensen, a well known and regarded Professional Engineer with 35 years international technical experience, we were discussing various applications for Radial Drilling (or Radial Jet Drilling). In this blog we’ll cover one of those applications…..

Let’s begin by stating the obvious.   A VERTICAL well completion is a “dot” in a 2-dimensional landscape.  As such, the wellbore itself can either be ideally placed or alternatively placed in some less optimal location.   The probability of the former is less likely than the latter.

During the last 15-years the industry has experienced the arrival of HORIZONTAL well drilling technology, quickly followed by MULTI-STAGE fracture stimulation of HORIZONTAL well trajectories.   The “panacea” solution to all the woes of the drilling and production of wells seemed to have been answered.

In actual fact what we have seen is an advancement from “pathetic” production flow rates from VERTICAL well completions, to “less pathetic” production flow rates from HORIZONTAL MULTI-STAGE fracture stimulated wells.   Pathetic might seem rather harsh way of describing results, but with HORIZONTAL wells contacting such long sections of reservoir pay, and yet achieving only about a 2.5-times multiplier on the flow rate, this is hardly earth shattering.   So, what has seemingly gone wrong that has made these new Horizontal multi-stage fractured wells produce and cumulate less oil than expected?

We know of a few obvious reasons, although many in the industry continue to ignore them;

  • The pump in a vertical well is for all intent adjacent to the producing interval whereas in a horizontal well, the pump is typically some hundred feet above the pay zone, and hundreds and often a thousand feet away from the fracture
  • Stage(s) and so fluid column and multiphase flow (transients) are to be expected.
  • The pressure drawdown as insinuated in the previous bullet comment is augmented further by problems of effectively unloading completion fluid used for fracture stimulation and thus the entire group of fracture stimulation stages for a Horizontal well is unlikely to be entirely conditioned for optimal flow.
  • Now the 3rd, most insidious reason.  Undulations in the pay section are common, as is the surface topography we see able to see at surface.  Placement of the horizontal trajectory in a optimal position is difficult and staying in the pay equally so.   But that only attends to the ”Z” vertical in a 3-dimensional wellbore.  The “X and Y” position as mentioned for VERTICAL wells also has not been completely solved using a HORIZONTAL well trajectory because the operator must choose the unique and singular direction from the 360-degrees of compass direction.   While more reservoir is contacted with the HORIZONTAL well, the presumption the more reservoir contacted automatically confers that more “quality” reservoir has been contacted is not an automatic.

The three circumstances mentioned are BIG issues and cannot be trivialized.   Reflecting on ONE issue is bothering, but reflecting on all THREE in simultaneous fashion together with their compounding affect would seem to provide a pretty compelling evidence to explain the rather modest flow rate improvement delivered from MULTI-FRACTURED HORIZONTAL wells.

We could add a FOURTH bullet to the list above which is somewhat controversial.  That is that the propagation of fractures is a lot more complicated, uncertain, and unpredictable than the simple concept used in most fracture stimulation models that describe the fracture as a simple “BI-WING.”   What is particularly concerning is that reservoirs of shallow depth seem to have a great deal of trouble propagating downward.   We have seen horizontal trajectories placed only a few meters above what might be considered the most optimal sand horizon that produce at very poor flow rates, even though one would presume that the fracture stimulation would have connected to the more optimal pay in some easy fashion.   The fact is they don’t and the “why” is yet to be determined, but the production rates speak the “truth.”

So, when considering the prospects of using Radial Drilling technology, we are encouraged on a number of fronts.  Let’s spell them out;

  • We know where optimum pay sections are as the existing wellbore has almost invariably been logged and a Gamma Log signature at a minimum is available.  Thus, we know the exact position of the optimal pay.
  • The “rapid” build permitted by Radial Drilling technology, allows the artificial lift (a sucker rod pump) to be placed at or below the juncture of the Vertical and the Horizontal such that literally no fluid head is held on the well, allowing a much-improved drawdown on the formation.
  • The possibility of a “radiated” or a “helical” drilling pattern around the well provides not just a “singular” opportunity in terms of accessing better reservoir, but a multiple probability.

At this point, let’s tie all of these ideas together in terms of what Radial Drilling technology might allow.

At present HORIZONTAL wells have been drilled in many lower permeability reservoirs where previous VERTICAL well completions were unable to produce at sufficiently high rates of production to make them economically viable.   We know what the “scale-up” production multiplier is comparing VERTICAL to HORIZONTAL completion types and they are not great.    Does it not make sense to drill a helical radiating set of laterals from the existing VERTICAL, and compare the cumulative production and flow rates achieved to the HORIZONTAL Multi-stage fractured wells and on a barrel of oil recovered per acre basis.   The results may very well prove the improvement in recoverable reserves but also show that the cost of a radiating lateral VERTCIAL well completion may ALSO be less expensive.

Such a test seems important.   Results could cause a shift in completion practices for such a very large number of reservoirs and a very large number of producing companies.

This is not idle talk, but a real opportunity in need of being tested and evaluated.

www.radialdrillingconsultant.com

an image for my radial drilling blog article

The post Could Radial Drilling revolutionise prospects of older vertical wells? appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 
Radial Drilling Blog by Djradials - 1y ago

Welcome to my first blog.

Starting soon, I plan to produce regular content related to all things Radial Drilling, ranging from the status of the industry, different applications for Radial Drilling, news on the various Radial Drilling service providers and much more.

Stay tuned……

www.radialdrillingconsultant.com

The post Hello world! appeared first on Radial Drilling Blog.

Read Full Article
  • Show original
  • .
  • Share
  • .
  • Favorite
  • .
  • Email
  • .
  • Add Tags 

Separate tags by commas
To access this feature, please upgrade your account.
Start your free month
Free Preview