... and high-frequency sensors Abstract Drilling large diameter boreholes through highly interbedded formations presents significant challenges such as torsional instability that potentially leads to a drill string twist-off or a premature Polycrystalline Diamond Compact (PDC) bit damage. This paper...

... Abstract This paper presents a detailed analysis of a well drilled with 61% of H2S with ∼10 km radius of risk contour, focusing on the well control complications and challenges due to the high sour nature of the well. Given the high H2S content, this poses critical challenges to the planning...

... Abstract This paper provides a comprehensive analysis of frontier exploration in deep HTHP play wells, specifically those exceeding 6 km depth in Northern Sultanate of Oman and targeting deep and sour formations. The study focuses on advancements in well design optimization, drilling dynamics...

... with high durability, and contained the fluid to prevent upmost sever consequences. geologist completion installation and operations surface leak geology wellbore integrity handover process wellbore design leak cement well integrity requirement drilling assessment integrity requirement...

... Abstract Objectives/Scope Exploring the frontiers of exploration, ADNOC Onshore's ASR Team has pioneered the use of Underbalanced Coiled Tubing Drilling (UBCTD) within the entirety of the ADNOC Group, further extending its application to a multilateral well. This technique reduces reservoir...

... Abstract Conventional drilling methods encountered serious operational challenges while drilling 12.25 in. production hole sections, such as wellbore instability and drilling fluid losses across aquifers. These challenges affected both the drilling productivity and the well integrity...

... due to the concern of marginal field reservoirs. To address the concern, a removable jacket concept is provided that can be constructed and installed quickly and relocated at other locations in case of commercially unviable well flow rate. This paper proposes a minimum structure to drill and appraise...

... strings, (3) infill drilling to complete the patterns from 5-spot to 9-spot patterns to improve waterflood sweep, and (4) execute WRM optimization activities to increase injectivity in the water flooded reservoirs. One of the main challenges in wells commingling production form different units...

... Abstract Getting intelligent insight from large amount of dataset is critical for Energy companies to optimize their operations across various business segments such as drilling, production and completion etc. The paper proposes end-to-end workflow to 1) extract data form rig and production...

... is by surveying the borehole at an acceptable frequency as per the well surveying program. Which in accordance with world wide industry practices. Such acquired data is utilized in the drilling campaign starting from the planning phase throughout execution all the way to post drilling activities. The 8.5in...

... The application has in general represented low challenge in terms of bit durability, where usually bits drill the full section and are pulled out of hole at the end of the section with no damage to the cutters that are failing the rock. The cutters at the end of the bit show a green condition...

... Abstract Water flood is dominant development mechanism to produce oil from lower Shuaiba carbonate reservoirs in North Oman. Efficient water flood management along with a novel approach to drill infill wells has resulted in increased oil production at lower GHG intensity while reducing cost...

... With the development of pad centric ‘Urban Planning Tool’, solutions to the key decisions associated with pad-based drilling can be pre-emptively proposed for different drilling scenarios. This aids in the asset level development planning. Some of these decisions are as follows. Arrive...

... locations and designs. The execution of this new field development strategy was first deployed in a selected drilling pad, previously identified as the best candidate for secondary reservoir development. This pad includes 4 horizontal and 2 deviated producers, and 5 workovers (WOs). The allocated production...

... Abstract With the depletion of reservoir pressure in low permeable formation, drilling (overbalance) always become challenging and thus the productivity due to high invasion. In order to opt the unconventional solution to maximize the recovery, it requires integrated approach...

... Abstract Borehole image interpretation aims to evaluate the dip, azimuth and aperture of natural fractures and mechanical features detected along the well such as, drilling induced fractures, breakouts, etc. and to classify them based on their characteristics. Traditionally, the rule-based...

... Abstract Well construction is necessary part of oil and gas business, and its greenhouse gases (GHG) emissions reduction is becoming important. Today, the main attention is paid to technology, minimizing drilling time and upgrading rig with low-energy equipment. However, often the changes...

... ABSTRACT Drilling across Shuaiba formation in the western wells of Kuwait poses significant difficulties, including severe loss of drilling fluid, unstable shale formations, and deteriorating hole conditions, which may require sidetracking. Cavernous porosity development in Shuaiba formation...

... characterization based on integrated model has been verified by drilling results of recent wells in the area, which are used in this case study. The case study demonstrates that the model built on integrated approach explain the distribution pattern of fractures in 3D space and helped in planning well path...

... Abstract Challenging formations offer most of the evident drilling problems including lost circulation, stuck pipe events resulting in financial and timeline setbacks globally. Moreover, further complexities related to loss/gain make operators revise their casing plans, wellbore trajectories...