MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03703nam a22003017a 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
260505t2025 bx ao||g m|||o00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
Universiti Teknologi Brunei |
| Language of cataloging |
eng |
| Transcribing agency |
UTB |
| 084 ## - BOOK Call Number |
|---|
| Classification number |
UTB 120 REPORT THESIS & DISSERTATION |
| -- |
RTDS 443 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
'Amila Fashihah binti Haji Abu Bakar |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
The Benefits of Spectral Gamma Ray Log For Clay Minerals Identification in Brunei's Wells and Outcrops / |
| Statement of responsibility, etc. |
'Amila Fashihah binti Haji Abu Bakar |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Bandar Seri Begawan : |
| Name of publisher, distributor, etc. |
Universiti Teknologi Brunei , |
| Date of publication, distribution, etc. |
© 2025 . |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
v, 109 pages : |
| Other physical details |
charts, photos ; |
| Dimensions |
30 cm. |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Thesis submitted for the degree of Master of Science Universiti Teknologi Brunei |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Shale and clay-rich formations pose significant challenges in the oil and gas industry, primarily due to wellbore instability issues such as shale sloughing and clay swelling. These problems arise when reactive clay minerals, particularly montmorillonite, interact with drilling fluids, resulting in hydration and subsequent volumetric expansion. In Brunei, most wells contain slurry montmorillonite, which presents a substantial risk of formation swelling and collapse when exposed to water-based drilling fluids. Consequently, the appropriate selection of drilling equipment, tools, and fluid systems is critical for maintaining wellbore stability and optimizing drilling performance. The integration of geomechanical analysis and advanced drilling fluid design plays a crucial role in mitigating these challenges, reducing non-productive time, and enhancing hydrocarbon recovery. This study aims to predict potential problematic zones by analyzing the distribution and proportion of mixed-layered clay minerals relative to residual clay compositions. A comprehensive geostatistical approach is employed to examine the spatial variability of radioactive elements such as thorium, potassium, and uranium within the formations. Variogram modeling and kriging interpolation techniques are utilized to establish correlations between these elements and clay mineral composition, offering insights into the geological and petrophysical characteristics of the subsurface. Additionally, the study applies cross-plotting techniques between thorium and potassium values, obtained through the Spectral Gamma Ray Logging (SGRL), to enhance clay mineral characterization. By integrating geostatistical analysis with spectral gamma-ray logging data, this research seeks to improve the identification and classification of clay minerals in Brunei’s subsurface formations. The findings are expected to contribute to more effective assessments of formation stability, aiding the development of optimized drilling strategies and reservoir management practices. Ultimately, this study enhances the understanding of clay mineral distributions, supporting improved wellbore design, increased drilling efficiency, and reduced formation-related challenges in hydrocarbon exploration and production. |
| 502 ## - Dissertation Note |
|---|
| Dissertation Note |
Thesis (Master) - Universiti Teknologi Brunei, 2025 |
| 504 ## - Bibliography, Etc. Note |
|---|
| Bibliography, Etc. Note |
Includes bibliographical references from page 69-77 |
| 610 #4 - SUBJECT ADDED ENTRY--CORPORATE NAME |
|---|
| Corporate name or jurisdiction name as entry element |
Universiti Teknologi Brunei |
| Form subdivision |
Thesis |
| 610 #4 - SUBJECT ADDED ENTRY--CORPORATE NAME |
|---|
| Corporate name or jurisdiction name as entry element |
Universiti Teknologi |
| Form subdivision |
Final Year Report |
| 650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Gamma ray logging |
| 650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Clay minerals |
| General subdivision |
Analysis |
| 650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Clay minerals |
| Geographic subdivision |
Brunei |
| 650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Petroleum |
| General subdivision |
Geology |
| Geographic subdivision |
Brunei |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Bashir Suleman Abusahmin |
| Titles and other words associated with a name |
Dr. |
| Relator term |
Supervisor. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Local Classification |
| Koha item type |
Reports, Thesis & Dissertation Students |
| Suppress in OPAC |
No |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) |
|---|
| Internal field |
Reports, Thesis & Dissertation |
| CC (RLIN) |
850661 : 002497 c.1_UTB |
| Internal field |
Universiti Teknologi Brunei |
