DrillScan https://www.drillscan.com Improve Your Drilling Performance Wed, 18 Apr 2018 15:28:11 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.5 How To Run Mixed Lower Completion String To Bottom in Deepwater Extended-Reach Well https://www.drillscan.com/how-to-run-mixed-lower-completion-string-to-bottom-in-deepwater-extended-reach-well/ Fri, 06 Apr 2018 08:19:47 +0000 https://www.drillscan.com/?p=10370 By: Florent COULIOU This ERD well in a Deepwater field has reached TD after 22 days. Tens of millions of dollars have been spent already. Now comes the tricky part: running the lower completion string. This is to connect the wellbore to the reservoir. If something goes wrong, those tens of millions of dollars will […]

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By: Florent COULIOU

This ERD well in a Deepwater field has reached TD after 22 days. Tens of millions of dollars have been spent already.
Now comes the tricky part: running the lower completion string. This is to connect the wellbore to the reservoir. If something goes wrong, those tens of millions of dollars will have sunk into the deep ocean without a sound.
To make things even more challenging, this reservoir is a shallow burial, which means not much weight is available to push down the lower completion string and the client can face significant risk of lock-up due to buckling.
Something had gone wrong before in one of this client’s other Deepwater fields :
That well was not lost but a side-track had to be drilled and more millions of dollars had to bethrown in to bring the well back on track, not to count the expensive string that was lost in the hole.
Tor que & Drag analysis from the soft string model seems to suggest a trouble – free run to planned target depth even with a ridiculously high friction factor of 0.6 in open-hole. But that’s what it had said last time on that well, too.
It was under these circumstances that DrillScan was called – in to work with the client to ensure a successful run of the lower completion string into the tortuous wellbore. With the p rovided roadmap, and real-time follow-up during the running operations, the string finally reached the planned target depth to client’s relief.

To find out what happened and how we helped our client regain the well, read our white paper by leaving your contact below. We will share our success and failure stories on a monthly basis, so that you can get valuable insights for your well project.

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This post How To Run Mixed Lower Completion String To Bottom in Deepwater Extended-Reach Well was first publish in DrillScan.

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How to get out of a predicament of an unexpected side-track https://www.drillscan.com/rehabilitation-of-a-geothermal-well/ Mon, 12 Feb 2018 10:35:20 +0000 https://www.drillscan.com/?p=10267 A geothermal well doublet producing from a 75°C aquifer, had been operated for over 29 years. The last calliper run performed to control the ID of the 9 5/8” casing indicated there was corrosion and sediments clogging the inner side walls of the injector well, which was hindering production. To regain well integrity, a workover was performed to clean out the 9 5/8” casing in order to reline it. During the workover operations, a cement squeeze-flash occurred causing the 3 ½” drill string being stuck in hole. Remedial operations using coiled tubing was stopped after over two weeks of unsuccessful attempts. The injector well was then suspended with a cement plug set on top of the fish.

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Whether it’s in oil & gas or geothermal, an unexpected sidetrack is a costly problem. It’s doubly so when it happens to a producing well, for it not only costs you money to do the sidetrack but also you’re losing production while the sidetrack work is being carried out.

In short, not a happy day for anyone finding himself/herself in such a situation.
However, just as every cloud has a silver lining, there’s also a silver lining in such situations. That is when you have a competent team that can come up with a solid engineering plan and execute with precision and efficiency, your cost for the problem is then minimized and you get back a producing well and you learn a great deal about solving such problems and about correcting issues that caused your problem in the first place.
That’s what happened to one of our clients, whose geothermal well doublet suffered a cement flash-set incident which got the 3 ½” drill string stuck inside casing.
After a series of coiled tubing operations were attempted without success, a painful decision was made to drill a sidetrack in order to restore injection to the geothermal reservoir and save the well doublet.
And there’s one more catch though: the local regulations require proper isolation of all aquifers, which lie below the stucked fish in the hole. That means an interception has to be carried out first to re-enter the original wellbore in order to set cement plugs for compliance before sidetracking the new wellbore.

CFG Services and DrillScan were thus required to propose and plan an Intercept Well level-3 re-entry solution for this client, with objective to :

  1. regain access below the fish, meeting local regulations by properly isolating all aquifers with cement barriers,
  2. restore injection to the geothermal reservoir.

To find out what happened and how we helped our client regain the well, read our white paper by leaving your contact below. We will share our success and failure stories on a monthly basis, so that you can get valuable insights for your well project.

You will receive the link by email.
Please check that this one is not in your spam.

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This post How to get out of a predicament of an unexpected side-track was first publish in DrillScan.

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DrillScan attending the SPE/IADC Drilling Conference & Exhibition, 29-31 Jan 2018, Abu Dhabi , UAE https://www.drillscan.com/drillscan-iadc-drilling-conference-2018-abu-dhabi/ Fri, 15 Dec 2017 11:25:02 +0000 https://www.drillscan.com/?p=10016 DrillScan will be on SPE/IADC Middle East Drilling Technology Conference and Exhibition (29-31 Jan 2018)
Jumeirah at Etihad Towers Abu Dhabi , UAE

Please visit our booth #19

This post DrillScan attending the SPE/IADC Drilling Conference & Exhibition, 29-31 Jan 2018, Abu Dhabi , UAE was first publish in DrillScan.

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DrillScan will be at the SPE/IADC Middle East Drilling Technology Conference and Exhibition (29-31 Jan 2018)
Jumeirah at Etihad Towers Abu Dhabi , UAE

Please visit our booth #19

It will be an opportunity to answer your questions regarding our advanced drilling optimization software WellScan® and our range of consulting services for the drilling industry.

For more details about this event, please visit www.spe.org/events/en/2018/conference

We hope to see you there!

This post DrillScan attending the SPE/IADC Drilling Conference & Exhibition, 29-31 Jan 2018, Abu Dhabi , UAE was first publish in DrillScan.

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Continuous Inclination Measurements and BHA Modeling Help Detect Microdoglegs https://www.drillscan.com/continuous-inclination-measurements-and-bha-modeling-help-detect-microdoglegs/ Mon, 11 Dec 2017 09:10:11 +0000 https://www.drillscan.com/?p=9979 Microdoglegs are a natural effect of any vertical or directional well that can explain a wide variety of downhole problems. A trajectory-prediction model able to calculate the inclination and azimuth approximately every 12 in. has been developed to estimate microdoglegs using standard surveys, bottomhole-assembly (BHA) data, and steering parameters. This new methodology combining downhole data measurements with drillstring-modeling analysis highlights the potential for drilling optimization and wellbore placement.

This post Continuous Inclination Measurements and BHA Modeling Help Detect Microdoglegs was first publish in DrillScan.

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Microdoglegs are a natural effect of any vertical or directional well that can explain a wide variety of downhole problems. A trajectory-prediction model able to calculate the inclination and azimuth approximately every 12 in. has been developed to estimate microdoglegs using standard surveys, bottomhole-assembly (BHA) data, and steering parameters. This new methodology combining downhole data measurements with drillstring-modeling analysis highlights the potential for drilling optimization and wellbore placement.

Wellbore Trajectory

Standard Surveys. Surveys are generally taken at an interval of every 95 ft, the length of one stand. While the general recommendation is to decrease the survey interval when building faster than 3°/100 ft, this is often neglected because there is no advantage seen in wellbore-positioning-uncertainty models.

The well path between each survey point typically is calculated using the minimum-curvature approach, which assumes a curve of equal angle along the surface of a sphere with only one radius in a 3D plane. Looking at the well as a whole, this approach appears logical and yields reasonable-looking trajectories; however, when examining more-frequent survey data, it becomes obvious how this method can mislead users to think that the well path is much smoother than it actually is. Continuous-survey measurements have enabled the industry to take a closer look at what is happening between survey points, in highlighting microdoglegs quite often undetected by standard surveys.

Read more on : www.spe.org

 

This post Continuous Inclination Measurements and BHA Modeling Help Detect Microdoglegs was first publish in DrillScan.

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DrillScan at ADIPEC Exhibition & Conference 2017, Abu Dhabi https://www.drillscan.com/copie-de-drillscan-on-adipec-exhibition-conference-2017-abu-dhabi/ Mon, 06 Nov 2017 13:59:52 +0000 https://www.drillscan.com/?p=9879 DrillScan will be present at the 2017 ADIPEC Exhibition & Conference to be held on 13-16 November 2017 in Abu Dhabi.

This post DrillScan at ADIPEC Exhibition & Conference 2017, Abu Dhabi was first publish in DrillScan.

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DrillScan will be in Abu Dhabi for ADIPEC Exhibition & Conference (13-16 November) – Please visit our booth #9236 – hall #9!

2 SPE papers will be presented:

  • SPE188861: Wellbore Trajectory Quality Management: A Key Approach to Safe Casing & Completion Strings Deployment in Complex Wells
    Benjamin Nobbs | 14:00-14:20

    • Session Number: 21 | DRILLING AND COMPLETION TECHNOLOGY: Best Practices in Well Delivery – From Concept to Production
    • Monday, 13 November 2017 | 14:00-15:30
    • Session Room : CAPITAL SUITE 13
    • Session Co-chairs: Dan Nelson, Halliburton & Mahmoud ElGizawy, Schlumberger

 

This post DrillScan at ADIPEC Exhibition & Conference 2017, Abu Dhabi was first publish in DrillScan.

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Horizontal and Complex-Trajectory Wells https://www.drillscan.com/horizontal-and-complex-trajectory-wells/ Mon, 06 Nov 2017 08:42:51 +0000 https://www.drillscan.com/?p=9867 With the long-term price of a barrel of oil projected to hover around $50, all actors in the oil and gas industry have been forced to change or adapt their processes to try to reduce costs and sustain profitability. Accompanying the downturn, the oil and gas industry has entered a new era of digitalization, introducing new buzzwords to our industry such as artificial intelligence, digital twin, machine learning, neural network, industrial Internet of Things, and cloud computing, just to name a few.

This post Horizontal and Complex-Trajectory Wells was first publish in DrillScan.

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Stéphane Menand, SPE, President, DrillScan US

With the long-term price of a barrel of oil projected to hover around $50, all actors in the oil and gas industry have been forced to change or adapt their processes to try to reduce costs and sustain profitability. Accompanying the downturn, the oil and gas industry has entered a new era of digitalization, introducing new buzzwords to our industry such as artificial intelligence, digital twin, machine learning, neural network, industrial Internet of Things, and cloud computing, just to name a few. The industry has already begun its transition, going from more-­traditional mechanized systems in the hands of humans to more-computer-controlled drilling systems that will eventually lead to full drilling automation…

Read more on JPT – Journal of Petroleum Technology 

This post Horizontal and Complex-Trajectory Wells was first publish in DrillScan.

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DrillScan Software Casing Wear https://www.drillscan.com/drillscan-software-casing-wear/ Thu, 26 Oct 2017 08:48:34 +0000 https://www.drillscan.com/?p=9825 The invaluable added value of Stiff Torque and Drag and Buckling modeling for Casing Wear applications DrillScan is coming on the market with a new Casing Wear Service and software. Our model couples the benefits of our 3D detailed rigid calculation of the contact forces along with full meshing of the casing. Effects of doglegs, […]

This post DrillScan Software Casing Wear was first publish in DrillScan.

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The invaluable added value of Stiff Torque and Drag and Buckling modeling for Casing Wear applications

DrillScan is coming on the market with a new Casing Wear Service and software.
Our model couples the benefits of our 3D detailed rigid calculation of the contact forces along with full meshing of the casing.
Effects of doglegs, DP range, multiple size of tool joints… Can be accurately estimated to simulate precise casing wear locations and avoid excessive safety factors.

This post DrillScan Software Casing Wear was first publish in DrillScan.

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Drill String Buckling in Unconventional Wells https://www.drillscan.com/drill-string-buckling-in-unconventional-wells/ Thu, 26 Oct 2017 08:17:17 +0000 https://www.drillscan.com/?p=9806 This video, created from WellScan software, shows a typical case study for unconventional wells. The software simulates the drilling rotary phase along the lateral, where one sees first the vertical phase with no apparent buckling, then the curve with strong side forces and bending stress along the pipe, and at last the lateral section where […]

This post Drill String Buckling in Unconventional Wells was first publish in DrillScan.

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This video, created from WellScan software, shows a typical case study for unconventional wells. The software simulates the drilling rotary phase along the lateral, where one sees first the vertical phase with no apparent buckling, then the curve with strong side forces and bending stress along the pipe, and at last the lateral section where buckling occurs in a washout section. Note the effect of WOB on buckling, going from 20 to 45klbs. WellScan software is the only commercial software able to run post buckling analysis in 3D wells without using FEA analysis (computation time greatly reduced!).

This post Drill String Buckling in Unconventional Wells was first publish in DrillScan.

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DrillScan on SPE ATCE in San Antonio, Texas, 9-11 OCTOBER 2017 https://www.drillscan.com/drillscan-spe-atce-san-antonio-texas/ Mon, 09 Oct 2017 16:43:31 +0000 https://www.drillscan.com/?p=9783   We are exited to present for the first time our highly anticipated Well Planning and Casing Design modules for WellScan at SPE ATCE in San Antonio, TX. Come meet with the US team at our booth #3268 and ask for a demo. We look forward to seeing you next week!

This post DrillScan on SPE ATCE in San Antonio, Texas, 9-11 OCTOBER 2017 was first publish in DrillScan.

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We are exited to present for the first time our highly anticipated Well Planning and Casing Design modules for WellScan at SPE ATCE in San Antonio, TX.
Come meet with the US team at our booth #3268 and ask for a demo.
We look forward to seeing you next week!

This post DrillScan on SPE ATCE in San Antonio, Texas, 9-11 OCTOBER 2017 was first publish in DrillScan.

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DrillScan on SPE Offshore Europe 20175-8 September 2017, Aberdeen (UK) https://www.drillscan.com/SPE_Offshore-Europe-2017 Thu, 10 Aug 2017 16:58:38 +0000 https://www.drillscan.com/?p=9700   DrillScan will be in Aberdeen (UK) for SPE Offshore Europe – Conference & Exhibition – 5-8 September 2017 Please visit our booth #3B148 It will be the opportunity to answer your questions regarding our advanced drilling optimization software WellScan® and our range of consulting services for the drilling industry. For more details about this […]

This post DrillScan on SPE Offshore Europe 2017</br>5-8 September 2017, Aberdeen (UK) was first publish in DrillScan.

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DrillScan will be in Aberdeen (UK) for SPE Offshore Europe – Conference & Exhibition – 5-8 September 2017
Please visit our booth #3B148

It will be the opportunity to answer your questions regarding our advanced drilling optimization software WellScan® and our range of consulting services for the drilling industry.

For more details about this event, please visit www.offshore-europe.co.uk

We hope to see you there!

This post DrillScan on SPE Offshore Europe 2017</br>5-8 September 2017, Aberdeen (UK) was first publish in DrillScan.

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