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114756

A STUDY OF THE PERFORMANCE AND CHARACTERIZATIONS OF CLEANUP FLUIDS FOR RESERVOIRS DRILLED BY USING OIL-BASED MUD

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Mining and Metallurgical Engineering.

Abstract

The correct selection of the reservoir drilling fluid is critical to achieve the ultimate aim of minimizing formation damage for the completed such wellbores. This study evaluates the performance of a standard Oil Based Mud (OBM) to drill horizontal wellbores, concentrating on its formation damage characteristics and the Flow Initiation Pressures (FIP) required for production to flow through the filter-cake. For heterogeneous reservoirs, the study shows that in low permeability rocks the damage is relatively low but the FIP is high. Conversely, for high permeability rocks the FIP is low but formation damage is relatively high. If the drawdown pressure available from the reservoir is low, then we have the scenario where inflow will occur predominantly from the higher permeability formations which could be badly damaged but little inflow will occur from the relatively undamaged lower permeability rocks. In terms of maximizing production, this is obviously a less than optimal scenario. With this in mind, evaluations were conducted of cleanup fluids to gauge their effect on lowering the FIP of the OBM filter-cake. Various fluids were screened for their mud removal performance which would potentially indicate good OBM ‘chemical breakers'. Mud parameters such as oil: water ratio, base oil type and emulsifier content all affected the efficiency of the cleanup fluids. The best cleanup fluids were then utilized in a series of core tests to evaluate their effectiveness in reducing the filter-cake FIP.

DOI

10.21608/jesaun.2013.114756

Authors

First Name

Ali Elsaeh

Last Name

Enbaia

MiddleName

-

Affiliation

Petroleum Engineering Department, School of Engineering and Sciences, Curtin University. CDT 250, 98009, Miri, Sarawak, Malaysia

Email

enbaia1972@gmail.com

City

-

Orcid

-

First Name

Salah Musa

Last Name

Algarmadi

MiddleName

-

Affiliation

Geology Department, Faculty of Sciences, Liverpool University, Liverpool, United Kingdom

Email

s.elgarmadi@liv.ac.uk

City

-

Orcid

-

Volume

41

Article Issue

No 2

Related Issue

16841

Issue Date

2013-03-01

Receive Date

2012-10-11

Publish Date

2013-03-01

Page Start

702

Page End

723

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 41_Issue No 2_Pages 702-723.pdf

PDF . 475.1kB

Link

https://jesaun.journals.ekb.eg/article_114756.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114756

Order

20

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

A STUDY OF THE PERFORMANCE AND CHARACTERIZATIONS OF CLEANUP FLUIDS FOR RESERVOIRS DRILLED BY USING OIL-BASED MUD

Details

Type

Article

Created At

23 Jan 2023