Results 161 to 170 of about 5,239 (198)

Conquering Wellbore Instability in Kuwait

SPE Kuwait Oil & Gas Show and Conference, 2019
Abstract To reach many of the world's petroleum-rich formations, drilling must first penetrate challenging shale formations where wellbore instability frequently results in costly stuck pipe, lost circulation, non-productive time, and expensive sidetracks.
Hassan Haddad, Mohamed Jassem Al-Khaja, Ali Hussein Saffar, Sushil Kumar Raturi, Bahaa Abdul Aleem, Mohamed Samak, ElSayed Ibrahim ElSeheemy, Victor Barsoum, Rami Abdelaziz, Jene Rockwood   +9 more
openaire   +1 more source

Drillstring Vibration and Wellbore Instability

Journal of Energy Resources Technology, 2002
Wellbore instability can be attributed to several causes. The ones thought to be most important include: chemical interaction with the drilling fluid, high tectonic stresses, and insufficient mud weight. Drillstring vibration, although not traditionally addressed as a potential cause, might influence the stability of wellbores drilled in specific ...
Joa˜o Carlos R. Pla´cido, He´lio M. R. Santos, Yadira Diaz Galeano   +2 more
openaire   +1 more source

A Comprehensive Practical Approach For Wellbore Instability Management

Proceedings of SPE International Oil and Gas Conference and Exhibition in China, 1998
Abstract In the North West Shelf, a region of growing importance in oil and gas production in Australia, drilling delays and suspension of wells prior to reaching the targets due to wellbore instability have occurred frequently. As a result, economic benefits through the use of new drilling technologies are significantly reduced due to ...
X. Chen, C. P. Tan, C. M. Haberfield
openaire   +1 more source

Risk Due to Wellbore Instability

2014
Exploration and production as one of the most important parts of the petroleum industry encounters different problems, usually resulting in nonproductive time and additional expenses. The most common and most expensive of them are related to wellbore instability and associated problems.
Gaurina-Međimurec, Nediljka, Pašić, Borivoje   +1 more
openaire   +2 more sources

Handling Wellbore Instability in Overburden Tertiary Shales

Proceedings, 2018
From November 2015 to April 2017 nine infill wells were drilled in the Danish Tyra South East field. The geomechanical challenges experienced in the Tertiary shales while delivering these wells were much larger than anticipated. Limited reservoir compaction had induced stress changes in the overburden, not fully captured in the pre-drill models, which ...
F. Ditlevsen, F. Bourgeois, M. Calvert
openaire   +1 more source

Managing Wellbore Instability Risk in Gas-Hydrate-Bearing Sediments

SPE Asia Pacific Oil and Gas Conference and Exhibition, 2005
Abstract With the petroleum industry endeavouring to develop oil and gas fields in deepwater and to increase its activities in onshore arctic environments, greater emphasis should be placed on quantifying the hazards to drilling operations posed by gas hydrates.
Chee Tan, Reem Freij-Ayoub, Michael Clennell, Bahman Tohidi, Jinhai Yang   +4 more
openaire   +1 more source

Analysis of sandstone creep and wellbore instability prevention

Journal of Natural Gas Science and Engineering, 2014
Abstract Sandstone of gas reservoir in Miocene Strata of Yinggehai Basin has creep characteristic and many drilling problems caused by wellbore shrinkage have occurred. It is important to determine the suitable mud density to prevent sandstone creep. The sandstone cores of the reservoir are used to do experiments and detect the creep property.
Yuan Cao, Jingen Deng, Baohua Yu, Qiang Tan, Chao Ma   +4 more
openaire   +1 more source

Artificial Neural Network Model for Predicting Wellbore Instability

SPE Nigeria Annual International Conference and Exhibition, 2016
Abstract Drilling activities have progressed to deep and ultra deep seas in recent times and with it comes more challenges. Due to the difficulty of directly obtaining important parameters like in-situ stress and fracture gradient, simple models have been evolved.
E. E. Okpo, A. Dosunmu, B. S. Odagme
openaire   +1 more source

Bit Balling and Wellbore Instability of Downhole Shales

Proceedings of SPE Annual Technical Conference and Exhibition, 1991
ABSTRACT While oil-base muds have given satisfactory performance in the past, environmental concerns motivate the further development of water-base muds. Often associated with water-base muds are operational problems such as bit balling, high torque, and stuck pipe.
L. W. Ledgerwood, D. P. Salisbury
openaire   +1 more source

Wellbore instability of Shale Formation; Zuluf field, Saudi Arabia

SPE Technical Symposium of Saudi Arabia Section, 2006
Abstract Significant wellbore instability problems are being experienced during the drilling of horizontal wells in a shaly sand member of the Khafji reservoir in Zuluf field. This paper presents the results from a case study that integrates detailed rock mechanics and swelling tests with information from petrophysical logs and core ...
H. Abass, A. Shebatalhamd, M. Khan, Y. Al-Shobaili, A. Ansari, S. Ali, S. Mehta   +6 more
openaire   +1 more source