Proper Clean Up and Improved Re-Acidization Quadruples Productivity Index in a HP-HT Horizontal Well Heavily Damaged With High-Weight Mud

Reji, E.C.; Al-Medhadi, Fahed; Mater, Muqhem; Stretch, Trena Marie; Ali, Abdulrazaq; Jassim, Moosa

doi:10.2118/97528-ms

All Days 2005

DOI: 10.2118/97528-ms

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Proper Clean Up and Improved Re-Acidization Quadruples Productivity Index in a HP-HT Horizontal Well Heavily Damaged With High-Weight Mud

E.C. Reji

Fahed Al-Medhadi

Muqhem Mater

et al.

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe re-acidization of HP-HT horizontal oil well Umm Guddair XXX in Kuwait resulted in a productivity index four times what was seen after the initial acidization. This astounding improvement in the results can be attributed to better acidization through thorough cleaning of the horizontal section prior to the 2 nd stimulation, as well as placing the acid in stages and introducing a suitable diverting agent.

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2014

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Maximising Well Productivity through Appropriate Design of Cleanup Recipe and Proper Execution for New Well Completions

Olubamise¹,

Oghene²,

Uchendu³

2014

All Days

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Reduced productivity in newly completed wells could be attributed to impairments caused by drilling and completion operation activities which are caused mainly by the drilling and completion fluids and other additives that may have been used during these operations on the wells. However, in spite of these impairments, proper design and execution of well clean up post completion of the well is critical to ensuring that whatever debris left behind at the sand face completion is removed or reduced to improve and optimize the productivity of the wells. Designing the appropriate clean up recipe requires proper evaluation of the wells characteristics, conditions, reservoir properties, and the drilling and completions fluid including additives.The clean up recipe design usually involves laboratory tests on mud samples from subject well, to determine the right content and quality of chemical that will properly dissolve the filter cake formed down hole.Understanding the sand face completion type, well geometry and reservoir characteristics is a critical success factor to designing the placement of the recipe and achieving a successful well clean up. Effective placement of the designed treatment recipe is mainly done using coiled tubing. Whether to squeeze or jet across completion interval is subject to the well configuration.In this paper, the Post clean up productivity of twenty-three (23) wells carried out in six (6) fields were reviewed to establish the relationship between the cleanup design, execution and productivity. Results of this shows that in the cases where proper design and execution of clean up were carried out, the wells productivity was successfully achieved as planned whereas in some cases of poor design and execution, the wells' performance was suboptimal.

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Maximising Well Productivity through Appropriate Design of Cleanup Recipe and Proper Execution for New Well Completions

Olubamise¹,

Oghene²,

Uchendu³

2014

All Days

View full text Add to dashboard Cite

show abstract

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Proper Clean Up and Improved Re-Acidization Quadruples Productivity Index in a HP-HT Horizontal Well Heavily Damaged With High-Weight Mud

Cited by 1 publication

References 3 publications

Maximising Well Productivity through Appropriate Design of Cleanup Recipe and Proper Execution for New Well Completions

Maximising Well Productivity through Appropriate Design of Cleanup Recipe and Proper Execution for New Well Completions

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