Management of the disastrous underground blowout in South of Iran

Rahman Ashena, Mahmood Amani, B. Taei, M. Kamyab

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An underground blowout is defined as an uncontrolled flow of formation fluids from a high to a low pressured zone. Due to the 9 5/8" casing collapse of the well no. X of MARUN Field with great tectonics, in the upper part of Aghajari Formation, Lahbari at 687 m depth, the formation oil and gas penetrated to Lahbari (with a large permeability and low formation mineral cementing) and appearing at the surface as 50 seeps (underground blowout). Most seeps were only 4 kms away from Jarahi River supplying the drinking water of three towns and additionally flows to Iran' Largest Wildlife Refuge, Shadegan Refuge which is home to a large number of flora and fauna species. The gas was set ablaze by the emergency crew to secure the environment from gas spreading and explosion. The identification of the GPS seep coordinates and slope to the river, Construction of 31 soil dams in 3 days to accumulate oil in case of flows towards the river, establishment of a 85 m wide floating bridge after the heavy rain, application of a large number of busters, day and night operation of 1800 NISOC, UBD and emergency workers to cap the well were only part of these huge operations. Comprehensive geology, drilling and production history, incident, well capping and also especially HSE operations including future amendments would be described. Inexistent well integrity management (WIM) to monitor leakages, casing corrosion erosion, and cement quality after 34 years of production would be presented as the main reason of the blowout while. The evidence presented clearly shows the disobeyance of the contemporary drilling manager in not extending the 13 3/8" intermediate casing to 1200 m depth according to the geological well forecast. The previous 9 5/8" casing design was confirmed after designing it again.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011
Pages443-459
Number of pages17
Volume1
Publication statusPublished - 2011
Externally publishedYes
Event17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011 - Manama, Bahrain
Duration: 25 Sep 201128 Sep 2011

Other

Other17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011
CountryBahrain
CityManama
Period25/9/1128/9/11

Fingerprint

Rivers
Drilling
Gases
Tectonics
Geology
Potable water
Dams
Explosions
Rain
Global positioning system
Erosion
Cements
Managers
Minerals
Corrosion
Soils
Fluids
Oils

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Ashena, R., Amani, M., Taei, B., & Kamyab, M. (2011). Management of the disastrous underground blowout in South of Iran. In Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011 (Vol. 1, pp. 443-459)

Management of the disastrous underground blowout in South of Iran. / Ashena, Rahman; Amani, Mahmood; Taei, B.; Kamyab, M.

Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011. Vol. 1 2011. p. 443-459.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ashena, R, Amani, M, Taei, B & Kamyab, M 2011, Management of the disastrous underground blowout in South of Iran. in Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011. vol. 1, pp. 443-459, 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011, Manama, Bahrain, 25/9/11.
Ashena R, Amani M, Taei B, Kamyab M. Management of the disastrous underground blowout in South of Iran. In Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011. Vol. 1. 2011. p. 443-459
Ashena, Rahman ; Amani, Mahmood ; Taei, B. ; Kamyab, M. / Management of the disastrous underground blowout in South of Iran. Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011. Vol. 1 2011. pp. 443-459
@inproceedings{17352dbc47704b78bd521929c5a0a98b,
title = "Management of the disastrous underground blowout in South of Iran",
abstract = "An underground blowout is defined as an uncontrolled flow of formation fluids from a high to a low pressured zone. Due to the 9 5/8{"} casing collapse of the well no. X of MARUN Field with great tectonics, in the upper part of Aghajari Formation, Lahbari at 687 m depth, the formation oil and gas penetrated to Lahbari (with a large permeability and low formation mineral cementing) and appearing at the surface as 50 seeps (underground blowout). Most seeps were only 4 kms away from Jarahi River supplying the drinking water of three towns and additionally flows to Iran' Largest Wildlife Refuge, Shadegan Refuge which is home to a large number of flora and fauna species. The gas was set ablaze by the emergency crew to secure the environment from gas spreading and explosion. The identification of the GPS seep coordinates and slope to the river, Construction of 31 soil dams in 3 days to accumulate oil in case of flows towards the river, establishment of a 85 m wide floating bridge after the heavy rain, application of a large number of busters, day and night operation of 1800 NISOC, UBD and emergency workers to cap the well were only part of these huge operations. Comprehensive geology, drilling and production history, incident, well capping and also especially HSE operations including future amendments would be described. Inexistent well integrity management (WIM) to monitor leakages, casing corrosion erosion, and cement quality after 34 years of production would be presented as the main reason of the blowout while. The evidence presented clearly shows the disobeyance of the contemporary drilling manager in not extending the 13 3/8{"} intermediate casing to 1200 m depth according to the geological well forecast. The previous 9 5/8{"} casing design was confirmed after designing it again.",
author = "Rahman Ashena and Mahmood Amani and B. Taei and M. Kamyab",
year = "2011",
language = "English",
isbn = "9781618392633",
volume = "1",
pages = "443--459",
booktitle = "Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011",

}

TY - GEN

T1 - Management of the disastrous underground blowout in South of Iran

AU - Ashena, Rahman

AU - Amani, Mahmood

AU - Taei, B.

AU - Kamyab, M.

PY - 2011

Y1 - 2011

N2 - An underground blowout is defined as an uncontrolled flow of formation fluids from a high to a low pressured zone. Due to the 9 5/8" casing collapse of the well no. X of MARUN Field with great tectonics, in the upper part of Aghajari Formation, Lahbari at 687 m depth, the formation oil and gas penetrated to Lahbari (with a large permeability and low formation mineral cementing) and appearing at the surface as 50 seeps (underground blowout). Most seeps were only 4 kms away from Jarahi River supplying the drinking water of three towns and additionally flows to Iran' Largest Wildlife Refuge, Shadegan Refuge which is home to a large number of flora and fauna species. The gas was set ablaze by the emergency crew to secure the environment from gas spreading and explosion. The identification of the GPS seep coordinates and slope to the river, Construction of 31 soil dams in 3 days to accumulate oil in case of flows towards the river, establishment of a 85 m wide floating bridge after the heavy rain, application of a large number of busters, day and night operation of 1800 NISOC, UBD and emergency workers to cap the well were only part of these huge operations. Comprehensive geology, drilling and production history, incident, well capping and also especially HSE operations including future amendments would be described. Inexistent well integrity management (WIM) to monitor leakages, casing corrosion erosion, and cement quality after 34 years of production would be presented as the main reason of the blowout while. The evidence presented clearly shows the disobeyance of the contemporary drilling manager in not extending the 13 3/8" intermediate casing to 1200 m depth according to the geological well forecast. The previous 9 5/8" casing design was confirmed after designing it again.

AB - An underground blowout is defined as an uncontrolled flow of formation fluids from a high to a low pressured zone. Due to the 9 5/8" casing collapse of the well no. X of MARUN Field with great tectonics, in the upper part of Aghajari Formation, Lahbari at 687 m depth, the formation oil and gas penetrated to Lahbari (with a large permeability and low formation mineral cementing) and appearing at the surface as 50 seeps (underground blowout). Most seeps were only 4 kms away from Jarahi River supplying the drinking water of three towns and additionally flows to Iran' Largest Wildlife Refuge, Shadegan Refuge which is home to a large number of flora and fauna species. The gas was set ablaze by the emergency crew to secure the environment from gas spreading and explosion. The identification of the GPS seep coordinates and slope to the river, Construction of 31 soil dams in 3 days to accumulate oil in case of flows towards the river, establishment of a 85 m wide floating bridge after the heavy rain, application of a large number of busters, day and night operation of 1800 NISOC, UBD and emergency workers to cap the well were only part of these huge operations. Comprehensive geology, drilling and production history, incident, well capping and also especially HSE operations including future amendments would be described. Inexistent well integrity management (WIM) to monitor leakages, casing corrosion erosion, and cement quality after 34 years of production would be presented as the main reason of the blowout while. The evidence presented clearly shows the disobeyance of the contemporary drilling manager in not extending the 13 3/8" intermediate casing to 1200 m depth according to the geological well forecast. The previous 9 5/8" casing design was confirmed after designing it again.

UR - http://www.scopus.com/inward/record.url?scp=84856681759&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856681759&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781618392633

VL - 1

SP - 443

EP - 459

BT - Society of Petroleum Engineers - 17th Middle East Oil and Gas Show and Conference 2011, MEOS 2011

ER -