TDH-Jar
Jar placement optimization featuring impact, impulse, weight-on-bit operating ranges and pull and slack-off limits vs latch settings.
TDH-Core
Comprehensive torque, drag & hydraulics modelling with cloud-based flexibility.
TDH-Plus
Advanced modelling, additional casing wear, cementing & design modules.
TDH-Custom
Customised TDH solutions tailored to your exact specification.
What is TDH?
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TDH is a fully-featured torque, drag, and hydraulics modelling package for drilling engineers working in oil, gas, geothermal, and carbon capture environments.
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TDH is a ground-up redesign of Merlin’s own in-house software, used daily on the world’s most complex wells.
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TDH allows engineers in the office or in the field to build a model quickly, analyse and interpret results, reducing risk in planning and improving performance during execution.
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TDH avoids the need for a local computer installation, improving usability and flexibility.
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TDH is customizable, code-light and ready for easy modification.
Built by Engineers for Engineers
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As drilling engineers ourselves, we want speed and simplicity from our tools. Time spent building models rather than analysing results is time wasted.
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If you are an intermittent T,D, and H model user, the last thing you need is to relearn the software from scratch every time. TDH improves on the original version in terms of simplicity and ease of use.
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TDH incorporates advanced elements of functionality such as scenario comparison tools, advanced rheology correction based on heat flow, casing wear, casing design, cementing and multifluid analysis and real-time data streaming*.
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Model friction reduction tools, floated casing strings and assess tortuosity effects with simple, built-in functionality – no need for complex workarounds.
*Coming soon
Package Options
TDH-Core
Comprehensive torque, drag & hydraulics modelling with cloud-based flexibility.
✔️ Torque, drag and buckling
✔️ Hydraulics (P&T corrected)
✔️ Flexible output charts
Request A Demo
TDH-Plus
Advanced modelling, additional casing wear, cementing & design modules.
✔️ Torque, drag and buckling
✔️ Hydraulics (P&T corrected)
✔️ Flexible output charts
✔️ Cloud based
✔️ PVT functionality
✔️ Casing wear module
✔️ Cementing module
✔️ Casing design module
Request A Demo
TDH-Custom
Customised TDH solutions tailored to your exact specification.
Example projects for real clients shown below.
Discuss Your Requirements
TDH-Custom Example #1:
A client wanted to optimize placement of their innovative tools in the drill-string with one-click functionality. The brief tasked Merlin to develop a digital model of the tool operating mechanism from first principles, which would be used to define torque and drag roadmaps based on placement position and number of tools in the string. These models were then validated against actual measurements and observations in the field.
Following a successful validation process, TDH was modified to include a custom tool library and data inputs as well as new output reports, which streamline the tool placement process and make presentations of data to the client’s own customers simple and effective. This approach reduced the amount of time our client’s engineers spent optimizing tool placement and reduced the amount of time necessary to prepare technical reports and proposals for new opportunities.
TDH-Custom Example #2:
An independent tool provider wanted to incorporate their tool operating characteristics into TDH in order to streamline their modelling and customer proposal generation process. Custom tools were added as “drop down” options in the BHA input section, where individual tools could be specified as being part of the BHA, and their operating characteristics incorporated automatically.
TDH outputs were modified to replace spreadsheets which were used to collate data from different sources into one single location. TDH’s flexible output capability was used to generate a similar report automatically, without manual manipulation, allowing engineers to spend more time solving client problems.
Key Benefits
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Runs in-browser. No need for a local installation.
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Fully featured torque, drag, and hydraulics modelling software – drilling, tripping, back-reaming casing/liner running and floating, and completions.
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Temperature corrected hydraulics for drilling, swab/surge, ECD modelling, standpipe pressure optimization and more.
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Quickly compare scenarios to choose the most effective solution.
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Import data via file or real-time* for comparison or hindcasting.
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User support provided by engineers
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Software updates included
*Coming soon
Ease of Use
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Flexible and easy to use output reports and charts – templates built in for the most important functions.
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TDH is highly customizable – we have number of customers that have features tailored for their tools and workflows.
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TDH is used by operators, multinational and domestic service companies, and tool vendors.
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Flexible licencing model – choose your duration and number of users.
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Run in offline mode.
Book a Demo with a Merlin Engineer
Allow one of Merlin’s Senior ERD Engineers to show you around the software, demonstrating how TDH can help you optimize your wells.
TDH Clients
TDH is used by operators, multinational and domestic service companies and tool vendors.
