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Case Study--Field Implementation of Automated Torque-and-Drag Monitoring for Maari Field Development

Authors
Michael Niedermayr (OMV E&P GmbH) | Jack Pearse (OMV New Zealand Limited) | Melanie Banks (OMV NZ Ltd) | Philipp Zoellner (TDE Thonhauser Data Engineering GmbH) | Gerhard Thonhauser
DOI
https://doi.org/10.2118/128243-MS
Document ID
SPE-128243-MS
Publisher
Society of Petroleum Engineers
Source
IADC/SPE Drilling Conference and Exhibition, 2-4 February, New Orleans, Louisiana, USA
Publication Date
2010
Document Type
Conference Paper
Language
English
ISBN
978-1-55563-280-9
Copyright
2010. IADC/SPE Drilling Conference and Exhibition
Disciplines
4.2.3 Materials and Corrosion, 1.11.2 Drilling Fluid Selection and Formulation (Chemistry, Properties), 1.1 Well Planning, 1.6 Drilling Operations, 1.10.1 Drill string components and drilling tools (tubulars, jars, subs, stabilisers, reamers, etc), 1.10 Drilling Equipment, 6.1.5 Human Resources, Competence and Training, 1.13 Drilling Automation, 1.6.10 Running and Setting Casing, 1.6.6 Directional Drilling, 6.5.3 Waste Management, 1.11 Drilling Fluids and Materials, 4.5 Offshore Facilities and Subsea Systems, 1.6.1 Drilling Operation Management, 4.5.3 Floating Production Systems
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Abstract
This case study presents a novel approach to capturing torque and drag trends real-time while drilling complex and extended reach wells. Data processing algorithms automatically process rig sensor data. They recognize current rig operations and log drill string torque and drag parameters. Data is automatically collected, presented and shared without any exposure to human error or interpretation in data recording, allowing engineered real-time and longer term decisions to be made with accurate and consistent data. The tool relies on updated torque and drag models but otherwise works without further input or drilling process interruptions and it does not require extra personnel on or off-site.

The main purpose of the new system is to confirm hole condition. The system acquires and displays well documented field and operation specific drag values. On Maari this information has been used to make strategic decisions on mud systems, critical casing runs, running strings, trajectories, accessible targets and contingency planning.

The paper outlines the monitoring process and system support. It will present actual results and detail how its use has aided planning, drilling and logistics. Field data will be presented in support of the examples listed below.

    •    minimized back-reaming during drilling connections and overall reduced hole cleaning efforts
    •    real-time decisions on location, need and quantity of HWDPs or DCs in the screen running strings, avoiding rig time to pick up tubulars from          deck
    •    confident decisions to swap from synthetic to water-based mud in hole sections that industry experts have previously classified as ‘border line casing  floatation area'
    •    elimination of synthetic-based mud in intermediate sections, the overall environmental impact of the drilling campaign has been drastically  reduced
    •    planning a new extended reach well based on monitoring results has allowed appraising and potentially producing off structure reserves otherwise stranded
    •    the field application has also proven 24/7 support and maintenance of equipment far off service provider home base

The case study also outlines technical difficulties encountered and how these were addressed during product testing and its first commercial field application.

File Size  1 MBNumber of Pages   14

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