Managed Pressure Drilling Technique Applied in a Kurdistan Exploration Well

2013 ◽  
Author(s):  
D. J. Driedger ◽  
S. P. Kelly ◽  
C. Leggett ◽  
J. Thain ◽  
M. Silva
Keyword(s):  
Managed Pressure Drilling ◽  
Drilling Technique ◽  
Exploration Well

First Oman Implementation of Pressurized Mud-Cap Drilling Improves Drilling Efficiency and Sustainability

2021 ◽  
Author(s):  
Cesar Orta ◽  
Mohanad Al Faqih ◽  
Bader Al Gharibi ◽  
Mohammed Al Shabibi ◽  
Ali El Khouly ◽  
...  
Keyword(s):  
Control Device ◽  
Total Loss ◽  
Managed Pressure Drilling ◽  
Drilling Technique ◽  
Drilling Technology ◽  
First Time

Abstract Drilling with a gas cap over the Natih formation in Oman often results in excessive flat time. Using the current dynamic fill equipment to deal with kick and loss scenarios leads to extensive nonproductive time on the rig. Managed pressure drilling (MPD) is a well-established drilling technology, and diverse variants exist to suit different requirements. All those variants use the rotating control device (RCD) as a common piece of equipment, but their procedures are different. The pressurized mud-cap drilling (PMCD) technique in the Natih formation replaces the need for traditional dynamic filling technology. The PMCD application enhances the drilling and completion processes by reducing flat time when total downhole losses are experienced. This paper elaborates on PMCD as a proven drilling technique in total loss scenarios when drilling with it for the first time in the Natih formation in Oman. It describes the PMCD process, the associated equipment, and the results of the inaugural application in the Qalah field.

First MPD Project in Myanmar Successfully Completed on Deepwater Exploration Well

2021 ◽  
Author(s):  
Harpreet Kaur Dalgit Singh ◽  
Bao Ta Quoc ◽  
Benny Benny ◽  
Ching Shearn Ho
Keyword(s):  
Pore Pressure ◽  
Control Device ◽  
Back Pressure ◽  
Deepwater Drilling ◽  
Hole Pressure ◽  
Bottom Hole Pressure ◽  
Bottom Hole ◽  
Managed Pressure Drilling ◽  
Pore Pressure Prediction ◽  
Exploration Well

Abstract With the many challenges associated with Deepwater Drilling, Managed Pressure Drilling has proven to be a very useful tool to mitigate many hurdles. Client approached Managed Pressure Drilling technology to drill Myanmar's first MPD well on a Deepwater exploration well. The well was drilled with a Below Tension Ring-Slim Rotating Control Device (BTR-S RCD) and Automated MPD Choke System installed on semi-submersible rig, Noble Clyde Boudreaux (NCB). The paper will detail MPD objectives, application and well challenges, in conjunction with pore pressure prediction to manage the bottom hole pressure to drill to well total depth safely and efficiently. This exploration well was drilled from a water depth of 590m from a Semisubmersible rig required MPD application for its exploratory drilling due to uncertainties of drilling window which contained a sharp pressure ramp, with a history of well bore ballooning there was high potential to encounter gas in the riser. The Deepwater MPD package integrated with the rig system, offered a safer approach to overcome the challenges by enhanced influx monitoring and applying surface back pressure (SBP) to adjust bottom hole pressures as required. Additionally, modified pore pressure hunting method was incorporated to the drilling operation to allow more accurate pore pressure prediction, which was then applied to determine the required SBP in order to maintain the desired minimum overbalance while drilling ahead. The closed loop MPD circulating system allowed to divert returns from the well, through MPD flow spool into MPD distribution manifold and MPD automated choke manifold system to the shakers and rig mud gas separator (MGS). The automated MPD system allows control and adjustments of surface back pressure to control bottom hole pressure. MPD technology was applied with minimal overbalance on drilling and connections while monitoring on background gases. A refined pore pressure hunting method was introduced with manipulation of applied surface back pressure to define this exploration well pore pressure and drilling window. The applied MPD Deepwater technique proved for cost efficiency and rig days to allow two deeper casing setting depths and eliminating requirement to run contingency liners. MPD system and equipment is proving to be a requirement for Deepwater drilling for optimizing drilling efficiency. This paper will also capture detailed lesson learned from the operations as part of continuous learning for improvement on Deepwater MPD drilling.

Successful Wellbore Pressure Management Using Intelligent MPD and Continuous Circulation System on an HPHT Well in Vietnam

2021 ◽  
Author(s):  
Bao Ta Quoc ◽  
Harpreet Kaur Dalgit Singh ◽  
Tuan Nguyen Le Quang ◽  
Dien Nguyen Van ◽  
Essam Sammat
Keyword(s):  
Detection System ◽  
Lessons Learned ◽  
Circulation System ◽  
Well Control ◽  
Fracture Pressure ◽  
High Pressure High Temperature ◽  
Managed Pressure Drilling ◽  
Increased Risk ◽  
Wellbore Pressure ◽  
Exploration Well

Abstract A managed pressure drilling (MPD) and early influx detection system is gaining worldwide acceptance as an enabling technology for drilling wells with challenges that can lead to tremendous nonproductive time (NPT), significant unplanned costs, and increased risk exposure. MPD counteracts the high cost of these wells by delivering significant savings when eliminating fluid losses or well control events that cause NPT. MPD technology has proven that is used to not only reduce NPT but also enable access to reserves previously considered un-drillable. In this case history, MPD helped to reach reserves that could not be reached in the first well. Client planned to drill the well A, which is its second offshore exploration well. Early on in 2019, the campaign encountered significant problems because of high temperatures and a narrow pore-pressure/fracture-pressure (PP/FP) gradient window. Additionally, using conventional drilling methods in offset wells led to problems relating to kicks, loss scenarios, and stuck pipe. Before drilling the second exploration well, the relevant parties considered that the first well-presented multiple drilling issues, and they drew from past success. The latter job had ended with reaching all the well targets despite high-pressure/high-temperature (HP/HT) conditions using a continuous circulating device in conjunction with an MPD system. Therefore, this combination of technologies was chosen to drill the well A. The operator used the MPD system, from the start when drilling the 14 3/4-in × 16-in. hole section to the end when drilling the 8 1/2-in. hole section, in offshore Vietnam. Applying MPD technology on this well resulted in many benefits, including the main benefit of always controlling the bottomhole pressure through the challenging zones. MPD also helped to maintain the equivalent circulating destiny (ECD) and equivalent static density (ESD) during drilling, connections, and a logging operation to mitigate the risk of any gas breaking out at the surface and to drill the well to the desired target depth. This paper focuses on using MPD technology in conjunction with the continuous circulation system, in offshore Vietnam. It goes into detail by describing the experience and providing some of the lessons learned.

Successful Cementing of Ultra HTHP Wells under Managed Pressure Drilling Technique

2014 ◽  
Author(s):  
Farid Wahid ◽  
Ahmad Firdaus Ahmad Tajalie ◽  
Salim Taoutaou ◽  
Wing Keat Woo ◽  
Jose Fernando Gallo Zapata
Keyword(s):  
Managed Pressure Drilling ◽  
Drilling Technique

Real-Time Casing-Design Optimization:A Case Study in the Use of Managed-Pressure Drilling To Develop an Adaptive Well Design and Eliminate Casing Strings on a Deepwater Exploration Well

2014 ◽  
Vol 29 (04) ◽  
pp. 386-404
Author(s):  
Catherine Sugden ◽  
William Bacon ◽  
Oscar Roberto Gabaldon ◽  
Jose Umberto Arnaud Borges ◽  
Cristiane Maravilha Soares ◽  
...  
Keyword(s):  
Real Time ◽  
Well Design ◽  
Managed Pressure Drilling ◽  
Exploration Well
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