Published February 2026, Pg. 19-25

Section: Well drilling

UOT: 622.24:6232.76

DOI: 10.37474/0365-8554/2026-02-19-25

Applying steerable ream while drilling in high temperature wells to be drilled in Bulla field

E.X. Mammadov - Azerbaijan State Oil and Indystry University

From the very first day of oil and gas drilling, the primary objective of good engineering practice has always been to enhance drilling efficiency while simultaneously reducing overall operational costs. Continuous improvement in drilling technology, equipment, and methodology plays a crucial role in achieving these targets. 
This paper presents a detailed description of the development, implementation, and field application of an innovative drilling technology aimed at optimizing well delivery performance. Specifically, this article focuses on the use of Steerable Ream While Drilling (SRWD) systems in the Bulla Field, where the main objective is to reduce total operational days and consequently minimize daily rig costs. By integrating reaming and directional drilling operations into a single run, the SRWD tool enables smoother hole conditions, reduces the need for additional reaming trips, and significantly shortens non-productive time (NPT). 
This approach represents a step forward in drilling efficiency, especially in High Pressure High Temperature (HPHT) wells, where downhole conditions often pose severe challenges for conventional bottom hole assembly (BHA) configurations. The successful application of SRWD in these wells not only contributes to cost reduction but also enhances wellbore quality and stability. 
It is important to note that this technology has never before been implemented in Azerbaijan, particularly in the context of HPHT drilling operations. Therefore, the experience gained from this project is expected to open new opportunities for technological advancement and improved drilling performance in the region. The results obtained from this study may serve as a benchmark for future drilling campaigns, demonstrating the potential of SRWD systems to redefine drilling efficiency standards in complex geological environments.

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