19 days and USD 19 million

A new live consultancy service for drilling wells can save customers time and money. Based on live data and constant monitoring, it spots risks before they are reached and allows for better planning and a more efficient operation.

Live well

Saving time and money

  • Working with eDrilling, Maersk Training used its Live Well Support service to assist Wintershall with a drilling operation in the North Sea.
  • Before drilling started, one particular part was highlighted as an extremely challenging section due to the harsh winter season, increased time exposure and other complicating factors that called for extra technical support.
  • The initial start-up of Live Well Support aimed to ensure a proper test and tune phase in order to verify model simulations for further drilling operations. After that, hydraulic-simulations, risk analyses, and 3D visualisation of the wellbore were conducted on a daily basis.
  • Throughout the project Maersk Training and eDrilling representatives participated in the operational meetings to advise and support the exploration department.
  • The information obtained by Live Well Support was actively used to identify the limitations the team were working with, enabling fine-tuning of the mud weight strategy as pore pressure buildup started deeper and ended higher than predicted.

It was a regular Sunday afternoon for Just Sverre Wessel, testing a new drilling simulator that was to be used for training. The machine was monitoring the pressure, depth and possible complications in a modelled well, ready to be used on Maersk Training’s courses.

“We were testing and testing, and suddenly we thought, why don’t we use it for more than just training?” says Just, Operations Manager Oil & Gas for Oil & Gas at Maersk Training.

The result has been a new consultancy service called Live Well Support which, when it was tested with client Wintershall on a technically demanding drilling operation in the North Sea, saved 19 days drilling time – and total costs of about USD 19 million.

Modelling the well
The system was developed together with eDrilling, which provides drilling and well performance solutions, and built on data compiled by research company Sintef.

It works by modelling data to give an overview of the well to be drilled, including anticipated and modelled risks, so these can be taken into consideration before they are actually encountered. These could include a fault, potential limestone or pressure changes that may complicate the work.

It’s like keeping a car on the road, knowing when to accelerate and when to brake.

Carsten Boldrup

CARSTEN BOLDRUP, SALES EXECUTIVE AT MAERSK TRAINING

Based on the success with Wintershall, the Maersk Training team is taking Live Well Support to other potential clients, both oil and drilling companies, who are looking to save money in the current tough market conditions.

“It’s like keeping a car on the road, knowing when to accelerate and when to brake,” says Carsten Boldrup, Sales Executive at Maersk Training.

An investment, not a cost

Keeping an eye on the data and responding will require a team to keep a 24 hour, seven day watch, so there is a cost attached but the team is confident the rewards far outweigh that.

The system consists of more than 140,000 line codes, and once detected a “kick” – when the pressure in the drilled rock is higher than the mud pressure acting on the bottom of the well – 2 hours and 23 minutes before it actually happened.

It could potentially improve returns from mature fields, which tend to have challenging drilling operations, causing wellbore damages resulting in reduced production index. By ensuring the well is drilled faster and more efficiently with a large focus on the wellbore’s limitations, it not only reduces the cost but also potentially extends the life by ensuring it is in better condition.

“It is a fantastic tool to interpret what is happening down there, but you need someone to be able to interpret it,” says Just. “It is not a cost, but an investment.”

This is how it works

Info 1

Anticipate risks

It works by modelling data to give an overview of the well to be drilled, including anticipated and modelled risks, so these can be taken into consideration before they are actually encountered. These could include a fault, potential limestone or pressure changes that may complicate the work.

Info 2

The Kick

When the pressure in the drilled rock is higher than the mud pressure acting on the bottom of the well. Simulations allows a look ahead and a possibility to observe potential conflicts with the important value derived from PPFG – pressure gradient inside the pore space of the rock column.

Info 3

Proactive assessment

The simulations performed along with the display of the 3D visualisation of the risks involved led to a proactive assessment and evaluation of operational constraints related to the safe drilling window of the well.

Deliveries in numbers

19 days

44 daily

19 cost

live support

It is a fantastic tool to interpret what is happening down there, but you need someone to be able to interpret it. It is not a cost, but an investment.

Just sverre

JUST SVERRE WESSEL, OPERATIONS MANAGER FOR OIL & GAS AT MAERSK TRAINING