Delivery Assurance for ERD, Complex & U-shaped Wells

550+ Projects Successfully Delivered in 52 Countries

World-Class Drilling Engineering Advisors

Independent Delivery Assurance In Drilling Operations

Merlin advisors support swift identification and resolution of drilling risks and opportunities, assuring high performance operations with minimal downtime whilst maximising asset value.

Whatever stage you’re at in your project, Merlin is ready for your call.

Speak to an advisorFind out more about operations support


Challenging projects need rock-solid definition and a deep understanding of risk to ensure that engineers create solutions which preserve or enhance value. Merlin’s team of creative problem-solvers are on-hand to support your requirements in each of our core service areas.

Training Courses

Better trained people make better decisions. It is really that simple. If the plan is pushing the team out of their comfort zone, time in the classroom learning about the fundamentals and talking through critical success factors will improve reliability of well delivery.


Execution is make-or-break time. Effort and energy expended during planning needs to be harnessed and directed to assure operational success. Merlin can support your field operations with people that have real expertise and experience, and have the know-how and energy to drive success within your team.



Independent delivery assurance and support for extended reach and challenging high angle wells – from upfront engineering, training, through to execution in the field, Merlin ensures project value is delivered and objectives are met.


Tight operating margins or abnormal reservoirs create complex wells. Merlin’s MPD service is designed to allow operators to understand the options available and how these techniques will create benefit through the design and execution stages of their well delivery process.


Surface limits are easy to define based on equipment specifications. Below ground, our working
envelope is defined by pressure and stress gradients – requiring a different approach. Merlin’s
Geomechanics capability allows operators to quantify their wellbore stability envelope, avoiding risk and improving reliability of drilling outcomes.


Drilling for heat comes with its own set of challenges, demanding rigour in planning and execution to assure success in a sensitive commercial environment. Best practice, derived from lessons learned on the world’s most challenging wells ensures drilling projects are developed sustainably.


Merlin’s Drilling Engineers are problem solvers. From deep-water exploration into tectonically unstable zones, to wells in complex geomechanical environments, Merlin has seen and helped solve problems believed to be intractable, and engineered wells previously thought undrillable.

A Few of Our Clients

Client Testimonials

Why Work With Merlin?

Merlin brings expertise, experience and energy to your drilling project. We know what works – we do it day after day, all over the globe.

Enhance Project Value
Oil, gas or hot water in the flow line is the ultimate end point. The quicker it gets there the better, as time to first sale often has a disproportionate effect on project value. Our core competence helps you reduce well duration, which gets the sellable product to market more quickly.
Improve Delivery Reliability
Drilling delays are expensive in terms of extra CAPEX and value loss through deferred sales. They can erode stakeholder confidence and affect team morale. Merlin provides delivery assurance to ensure that project milestones are met, operations are managed within budgets and there is confidence across the organisation that the team will deliver according to plan.
Apply Enabling Technology
Thinking about a managed pressure drilling system or using the latest intelligent RSS? We can help you identify the right tool for the job, from the myriad options out there to increase your effective drilling radius or manage challenges with depleted reservoirs.
Defer Abandonment
Accessing remote resources from a nearby installation is one way to sustainably improve the ultimate recovery of a field. Incremental hydrocarbons can keep facilities open longer, maximising the lifespan of an asset and avoiding the need for new facility construction.
Drill Further Without Equipment Upgrades
Increasing your drilling radius gives the subsurface team more options when planning ongoing field development. Merlin can help you define a maximum drilling radius for your facility and if necessary, help with the specification of equipment upgrades to exceed current limits in the most cost efficient manner possible.
Apply Industry-leading Best Practises
High performing teams follow procedures to integrate their learning into ongoing operations. Utilise the same tools, processes and systems employed on the world's most complex wells to assure a positive outcome for your project.

Discuss your next project with Merlin

We are world-class drilling engineering advisors, collaborators, and educators – specialising in delivery assurance for extended reach and complex wells. Established in 2007, we have helped clients successfully deliver over 550 projects in 52 countries.