Demagnetizing the drill string magnetic interference in Far North and in Pakistan

Abstract Drilling in Barents Sea proves to be a challenging task, as this region is situated in auroral zones having high geomagnetic latitude, where magnetic interferences develop from magnetic field and magnetic materials inside subsurface are quite common. For this region, monitoring of magnetic...

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Published in:Journal of Petroleum Exploration and Production Technology
Main Authors: Shaine Mohammadali Lalji, Javed Haneef, Muhammad Arqam Khan, Syed Imran Ali
Format: Article in Journal/Newspaper
Language:English
Published: SpringerOpen 2019
Subjects:
Online Access:https://doi.org/10.1007/s13202-019-00801-7
https://doaj.org/article/08d9ae9af13f4001b77cc2e48da6ca73
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spelling ftdoajarticles:oai:doaj.org/article:08d9ae9af13f4001b77cc2e48da6ca73 2023-05-15T15:38:53+02:00 Demagnetizing the drill string magnetic interference in Far North and in Pakistan Shaine Mohammadali Lalji Javed Haneef Muhammad Arqam Khan Syed Imran Ali 2019-11-01T00:00:00Z https://doi.org/10.1007/s13202-019-00801-7 https://doaj.org/article/08d9ae9af13f4001b77cc2e48da6ca73 EN eng SpringerOpen http://link.springer.com/article/10.1007/s13202-019-00801-7 https://doaj.org/toc/2190-0558 https://doaj.org/toc/2190-0566 doi:10.1007/s13202-019-00801-7 2190-0558 2190-0566 https://doaj.org/article/08d9ae9af13f4001b77cc2e48da6ca73 Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 2, Pp 821-828 (2019) Magnetic interference Measurement while drilling Bottom-hole assembly Sensors Nonmagnetic drill collars (NMDC) Petroleum refining. Petroleum products TP690-692.5 Petrology QE420-499 article 2019 ftdoajarticles https://doi.org/10.1007/s13202-019-00801-7 2022-12-30T21:00:32Z Abstract Drilling in Barents Sea proves to be a challenging task, as this region is situated in auroral zones having high geomagnetic latitude, where magnetic interferences develop from magnetic field and magnetic materials inside subsurface are quite common. For this region, monitoring of magnetic field is utterly significant as any fluctuations can distort the tool sensor performance with ultimately enlarging the uncertainty in azimuth. To guide a well to its desire location, measurement while drilling (MWD) tool needs to be operated with utmost precision; however, its accuracy compromises as a result of magnetic interferences from drill string and nearby magnetic material. The performance of this tool depends upon its sensors. Any distortion in sensor performance can lead to problems such as multiple sidetracking and increase in overall project cost. Furthermore, the same BHA was also placed in a region of Pakistan and the impact drill string interference was observed. It was discovered that the interferences that had tremendous impact on magnetometer Z-component in Barents Sea had a drastic reduction in the region of Pakistan as it is situated in low latitude, where uncertainty in azimuth is low. In this work, an exemplary bottom-hole assembly (BHA) was analyzed and the impact of individual drill string components interferences was observed on the MWD sensors. It was perceived that the bit was responsible for creating the major distortion in MWD sensor. Apart from that, it was also investigated that the location of the well also plays a vital role in this distortion. This intervention in the sensors is created by a vast difference between the used actual length and the recommended length of nonmagnetic drill collar in the BHA. Numerically, it was investigated that if the physical distance between the sensors and bit is increased, then this interference is reduced. It was also apparent that the Z-component of the magnetometer was utterly distorted because of this interference, while the X- and Y-components ... Article in Journal/Newspaper Barents Sea Directory of Open Access Journals: DOAJ Articles Barents Sea Journal of Petroleum Exploration and Production Technology 10 2 821 828
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Magnetic interference
Measurement while drilling
Bottom-hole assembly
Sensors
Nonmagnetic drill collars (NMDC)
Petroleum refining. Petroleum products
TP690-692.5
Petrology
QE420-499
spellingShingle Magnetic interference
Measurement while drilling
Bottom-hole assembly
Sensors
Nonmagnetic drill collars (NMDC)
Petroleum refining. Petroleum products
TP690-692.5
Petrology
QE420-499
Shaine Mohammadali Lalji
Javed Haneef
Muhammad Arqam Khan
Syed Imran Ali
Demagnetizing the drill string magnetic interference in Far North and in Pakistan
topic_facet Magnetic interference
Measurement while drilling
Bottom-hole assembly
Sensors
Nonmagnetic drill collars (NMDC)
Petroleum refining. Petroleum products
TP690-692.5
Petrology
QE420-499
description Abstract Drilling in Barents Sea proves to be a challenging task, as this region is situated in auroral zones having high geomagnetic latitude, where magnetic interferences develop from magnetic field and magnetic materials inside subsurface are quite common. For this region, monitoring of magnetic field is utterly significant as any fluctuations can distort the tool sensor performance with ultimately enlarging the uncertainty in azimuth. To guide a well to its desire location, measurement while drilling (MWD) tool needs to be operated with utmost precision; however, its accuracy compromises as a result of magnetic interferences from drill string and nearby magnetic material. The performance of this tool depends upon its sensors. Any distortion in sensor performance can lead to problems such as multiple sidetracking and increase in overall project cost. Furthermore, the same BHA was also placed in a region of Pakistan and the impact drill string interference was observed. It was discovered that the interferences that had tremendous impact on magnetometer Z-component in Barents Sea had a drastic reduction in the region of Pakistan as it is situated in low latitude, where uncertainty in azimuth is low. In this work, an exemplary bottom-hole assembly (BHA) was analyzed and the impact of individual drill string components interferences was observed on the MWD sensors. It was perceived that the bit was responsible for creating the major distortion in MWD sensor. Apart from that, it was also investigated that the location of the well also plays a vital role in this distortion. This intervention in the sensors is created by a vast difference between the used actual length and the recommended length of nonmagnetic drill collar in the BHA. Numerically, it was investigated that if the physical distance between the sensors and bit is increased, then this interference is reduced. It was also apparent that the Z-component of the magnetometer was utterly distorted because of this interference, while the X- and Y-components ...
format Article in Journal/Newspaper
author Shaine Mohammadali Lalji
Javed Haneef
Muhammad Arqam Khan
Syed Imran Ali
author_facet Shaine Mohammadali Lalji
Javed Haneef
Muhammad Arqam Khan
Syed Imran Ali
author_sort Shaine Mohammadali Lalji
title Demagnetizing the drill string magnetic interference in Far North and in Pakistan
title_short Demagnetizing the drill string magnetic interference in Far North and in Pakistan
title_full Demagnetizing the drill string magnetic interference in Far North and in Pakistan
title_fullStr Demagnetizing the drill string magnetic interference in Far North and in Pakistan
title_full_unstemmed Demagnetizing the drill string magnetic interference in Far North and in Pakistan
title_sort demagnetizing the drill string magnetic interference in far north and in pakistan
publisher SpringerOpen
publishDate 2019
url https://doi.org/10.1007/s13202-019-00801-7
https://doaj.org/article/08d9ae9af13f4001b77cc2e48da6ca73
geographic Barents Sea
geographic_facet Barents Sea
genre Barents Sea
genre_facet Barents Sea
op_source Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 2, Pp 821-828 (2019)
op_relation http://link.springer.com/article/10.1007/s13202-019-00801-7
https://doaj.org/toc/2190-0558
https://doaj.org/toc/2190-0566
doi:10.1007/s13202-019-00801-7
2190-0558
2190-0566
https://doaj.org/article/08d9ae9af13f4001b77cc2e48da6ca73
op_doi https://doi.org/10.1007/s13202-019-00801-7
container_title Journal of Petroleum Exploration and Production Technology
container_volume 10
container_issue 2
container_start_page 821
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