Middle East Success Story with World's First Adaptive Drill Bit and Premium Rotary Steerable Technology

2018 ◽  
Author(s):  
Dakhil Al-Enezi ◽  
Saleh Gholoum ◽  
Mishari Al-Hajeri ◽  
Jassem Mohammed ◽  
Reem Al-Enezi ◽  
...  
Keyword(s):  
2018 ◽  
Author(s):  
Dakhil Al-Enezi ◽  
Saleh Gholoum ◽  
Mishari Al-Hajeri ◽  
Jassem Mohammed ◽  
Reem Al-Enezi ◽  
...  
Keyword(s):  

2016 ◽  
Author(s):  
M. H. Subaihi ◽  
A. Benanjaya ◽  
M. A. Al Bloushi ◽  
A. R. Gali ◽  
U. I. Hashmi ◽  
...  

2019 ◽  
Vol 2 (2) ◽  
pp. 19-32
Author(s):  
Khalid Hashim Mohammed

The Obama administration repeated that its promise to withdraw from Iraq on time was one of its most important achievements in the first presidential term. In fact, this withdrawal was within a broader and broader context that began to emerge in Obama's second term: withdrawal from the Middle East, In the so-called Asia "Rebalance", but the growing international chaos and the explosion of many crises in the face of the US administration such as the Syrian crisis and Iraq, especially after the so-called Arab Spring revolutions, cast a shadow over the region, and turning Iraq from the success story of the Obama administration and a benchmark for its achievements in foreign policy, a story Failure and a standard of confusion in foreign policy, and critics of the Obama administration, the American withdrawal "arbitrary" created a vacuum in Iraq filled by the opponents of the United States and lose control, or at least affect the course of the arena, both at the level of local players or regional.


2014 ◽  
Vol 51 ◽  
pp. 5-33 ◽  
Author(s):  
İlkim Özdikmenli ◽  
Şevket Ovalı

AbstractThis article argues that it is fallacious to promote the Turkish democratic experience under the Justice and Development Party (Adalet ve Kalkınma Partisi, AKP) as a model for the emerging Arab democracies. Despite the early political reformism of the AKP, an empirical analysis of the government’s recent crackdown on basic rights and freedoms demonstrates that the “Turkish model,” defined as a marriage of Islam and liberal democracy, cannot respond to the demands of Arab reformers. In this regard, the article falls into three sections. In the first section, assets of the “Turkish model” according to various actors are examined, which casts doubt on the emancipatory discourse underlying the promotion of the model. The second section proposes the term “leader democracy”—or, more specifically, “Erdoğanism”—as a way of denoting the governmental structure of Turkey as of early 2014. The final section depicts the current Turkish democracy in terms of the state of checks and balances and of basic political and social rights.


2021 ◽  
Author(s):  
Syed Zahoor Ullah ◽  
Alexey Ruzhnikov ◽  
Syed Siddik ◽  
Maxim Sizov ◽  
Abdulqawi Alfakih

Abstract Drilling rate of penetration (ROP) is one of the variables that influences well delivery timing and cost. ROP is affected by many factors, including but not limited to rock strength, well profile, bottom hole assembly (BHA) design, challenging formations per section, and drill bit selection. In one of the drilling projects in the Middle East, the primary method chosen to improve well delivery is to focus on optimizing the drill bit design to improve ROP while delivering other drilling objectives. As the project progressed, the ROP plateaued in most of sections in the field. The drilling team collaborated with the drill bit engineering to launch a drill bit optimization campaign in various hole sizes ranging from 16-in to 6⅛-in. Since fixed-cutter bits are predominantly used in these sections, improvements are made to the existing drill bit designs by replacing the cutting elements with more efficient 3D polycrystalline diamond compact (PDC) cutters or 3DC. 3DC cutters have different shapes, uniquely designed to tackle different drilling challenges. Using an in-house petrophysical log analysis program, each formation drilled in this field was analyzed and drilling challenges and ROP values were compared against previous performance. This information paired with finite element analysis (FEA) for dynamic drilling simulation was used to optimize drill bit selection. This conceptual workflow was followed to avoid costly field tests and ensure that the newly designed drill bit performs flawlessly downhole. Other design elements, such as choosing bit body material, were also incorporated by converting matrix-bodied to steel-bodied, which not only improved the ROP but also reduced the cost-per-foot (CPF). Initially the bit optimization program enabled ROP improvement in the 16-in section by 36% from 53 ft/h to 73 ft/h by replacing the roller-cone bit with a matrix-bodied fixed-cutter bit. Moreover, the drilling team further improved their performance, achieving 118 ft/hr. ROP when using the steel-bodied bit. With successful deployment of 3DC cutters in Middle East, ridged diamond element was introduced in the 8½-in section and successfully improved overall ROP by 11%. In addition, the 6⅛-in section showed 25% improvement in ROP following several design iterations that utilized two different types of 3DC cutters. By the end of the drill bit optimization campaign, the operator was able to improve the drilling curve and save up to 2.5 days per well. The 3DC cutters also helped eliminate the risk of bit failure in the 8½-in section, wherein offset wells several bits were required to complete the section. With the performance mindset, new technology deployment made it faster to test new bit designs. This helped with getting early data point for analysis before being able to test in the different fields in the area.


Author(s):  
R.C. Dickenson ◽  
K.R. Lawless

In thermal oxidation studies, the structure of the oxide-metal interface and the near-surface region is of great importance. A technique has been developed for constructing cross-sectional samples of oxidized aluminum alloys, which reveal these regions. The specimen preparation procedure is as follows: An ultra-sonic drill is used to cut a 3mm diameter disc from a 1.0mm thick sheet of the material. The disc is mounted on a brass block with low-melting wax, and a 1.0mm hole is drilled in the disc using a #60 drill bit. The drill is positioned so that the edge of the hole is tangent to the center of the disc (Fig. 1) . The disc is removed from the mount and cleaned with acetone to remove any traces of wax. To remove the cold-worked layer from the surface of the hole, the disc is placed in a standard sample holder for a Tenupol electropolisher so that the hole is in the center of the area to be polished.


Sign in / Sign up

Export Citation Format

Share Document