Structural Geometry Analysis of Khasib Formation in West Qurna I and II Supergiant Oilfields, Southern Iraq

Rafea Ahmed Abdullah; Muwafaq Al-Shahwan

Article Details

Structural Geometry Analysis of Khasib Formation in West Qurna I and II Supergiant Oilfields, Southern Iraq

Authors:

Rafea Ahmed Abdullah | Muwafaq Al-Shahwan

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.54 Issue 1E, pp.54-66

Document Type:

Article

Publication Date:

5/2021

Document Language:

English

Document ID (Org No.):

2001835978

pISSN:

2663-8754

Keywords:

Abstract:

 The West Qurna I and II supergiant oilfields are one of the largest oil-producing fields, southern Iraq. They are parts of a supergiant anticline that extends more than 120 km. This anticline is oriented north-northwest and it's included the South Rumaila, North Rumaila, West Qurna I, and West Qurna II. The aim of this study is to integrate all available data to provide a better understanding of the subsurface structure for both West Qurna I and II. 3-D high-quality seismic data (in SEGY format) that executed for both oilfields independently were used as a key tool to supply perfect structural images. In addition to Zero-Offset Vertical Seismic Profile, set of well logs and well tops from 569 wells that distributed over the study area, 423 wells are located in West Qurna I, 146 wells situated in West Qurna II. OpenWorks, DecisionSpace G1 10ep and Seismic Analysis 10ep software of Halliburton were used to perform the 3D seismic interpretation and create structure maps (in-depth domain). While the cross-sections were done by Schlumberger software (Petrel 2018). Finally, the well tops were picked using Geolog 8.0. The study concludes that the structure of West Qurna I and II can be classified as an antiform, non-cylindrical, horizontal, gentle, brachy, asymmetrical anticline.

Article Details

Structural Geometry Analysis of Khasib Formation in West Qurna I and II Supergiant Oilfields, Southern Iraq

Authors:

Rafea Ahmed Abdullah | Muwafaq Al-Shahwan

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.54 Issue 1E, pp.54-66

Document Type:

Article

Publication Date:

5/2021

Document Language:

English

Document ID (Org No.):

2001835978

pISSN:

2663-8754

West Qurna Oilfield

Structural analysis

Geometric analysis

Fold classification

Seismic interpretation

Issues

Article Details

Structural Geometry Analysis of Khasib Formation in West Qurna I and II Supergiant Oilfields, Southern Iraq

Authors: Rafea Ahmed Abdullah | Muwafaq Al-Shahwan

Publisher: Iraqi Geologists Union (Union of Iraqi Geologists)

Journal: The Iraqi Geological Journal Vol.54 Issue 1E, pp.54-66

Document Type: Article

Publication Date: 5/2021

Document Language: English

Document ID (Org No.): 2001835978

pISSN: 2663-8754

West Qurna Oilfield

Structural analysis

Geometric analysis

Fold classification

Seismic interpretation

Issues

Authors:

Rafea Ahmed Abdullah | Muwafaq Al-Shahwan

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.54 Issue 1E, pp.54-66

Document Type:

Article

Publication Date:

5/2021

Document Language:

English

Document ID (Org No.):

2001835978

pISSN:

2663-8754