Formation Pressure Estimation and Its Impact On Well Design: A Case Study From The Greater Dolphin Area

2012 ◽  
Author(s):  
Ronnie Arun Ameerali ◽  
Anil Saisbhan ◽  
Justus Adebanjo Adeleke ◽  
Narish Harripersad ◽  
Miltiadis Parotidis
Keyword(s):  
Formation Pressure ◽  
Well Design ◽  
Pressure Estimation

Triple MPD Technique for Drilling and Intelligent Completion Deployment on an Abandoned Deepwater Well

2021 ◽  
Author(s):  
André Alonso Fernandes ◽  
Eduardo Schnitzler ◽  
Fabio Fabri ◽  
Leandro Grabarski ◽  
Marcos Vinicius Barreto Malfitani ◽  
...  
Keyword(s):  
Pore Pressure ◽  
Fluid Loss ◽  
Final Project ◽  
Well Design ◽  
Open Hole ◽  
Loss Control ◽  
Fluid Losses ◽  
Complex Cases ◽  
Total Fluid

Abstract This is a case study of a presalt well that required the use of 3 different MPD techniques to achieve its goals. The well was temporary abandoned when conventional techniques failed to reach the final depth. Total fluid losses in the reservoir section required changing the well design and its completion architecture. The new open hole intelligent completion design had to be used to deliver the selective completion in this challenging scenario. From the hundreds of wells drilled in the Santos basin presalt, there are some wells with tight or no operational drilling window. In order to drill these wells different MPD techniques are used. In most cases, the use of Surface Backpressure (SBP) technique is suitable for drilling the wells to its final depth. For the more complex cases, when higher fluid loss rates occur, the use of SBP and Pressurized Mud Cap Drilling (PMCD) enables the achievement of the drilling and completion objectives. After the temporary abandonment of this specific well in 2018, the uncertainty of the pore pressure could not ensure that the SBP and PMCD techniques would be applicable when reentering the well. To avoid difficult loss control operations, the completion team changed the intelligent completion design to include a separated lower completion, enabling its installation with the MPD system. Besides the previously used MPD techniques, the integrated final project considered an additional technique, Floating Mud Cap Drilling (FMCD), as one of the possible contingencies for the drilling and completion phases. Well reentry and drilling of the remaining reservoir section included the use all the previously mentioned MPD techniques (SBP, PMCD and FMCD). The lower completion deployment utilized the FMCD technique to isolate the formation quickly and efficiently, without damaging the reservoir. The planning and execution of the well faced additional difficulties due to the worldwide pandemic and personnel restrictions. The success from the operation was complete with no safety related events and within the planned budget. At the end, the execution team delivered a highly productive well with an intelligent completion system fully functional, through an integrated and comprehensive approach. MPD use on deepwater wells is relatively new. Different operators used several approaches and MPD techniques to ensure safety and success during wells constructions over the last decade. This paper demonstrates the evolution of MPD techniques usage on deepwater wells.

Temperature Transients Affect Reservoir-Pressure Estimation during Well Tests: Case Study and Model

2018 ◽  
Vol 21 (01) ◽  
pp. 031-038 ◽  
Author(s):  
Pierre-David Maizeret ◽  
Maria Sidorova ◽  
Tatiana Lipovetsky
Keyword(s):  
Reservoir Pressure ◽  
Pressure Estimation ◽  
Well Tests

Formation Pressure While Drilling Technology Applied in Arctic Environment: Yamal Region Case Study

2015 ◽  
Author(s):  
Maxim Ivashin ◽  
Andrey Truba ◽  
Vladimir Zhernakov ◽  
Mariya Gluschenko ◽  
Valeriy Pavlov ◽  
...  
Keyword(s):  
Formation Pressure ◽  
Arctic Environment ◽  
Drilling Technology

Formation pressure estimation

1990 ◽  
Vol 4 (3) ◽  
pp. 223-233 ◽  
Author(s):  
S. Cao ◽  
I. Lerche
Keyword(s):  
Formation Pressure ◽  
Pressure Estimation

Combining Sonic While Drilling and Formation Pressure While Drilling for Pore Pressure Analysis to Reduce Drilling Risk: A Case Study in Offshore Vietnam

2016 ◽  
Author(s):  
The Nguyen Dac ◽  
Dung Doan Thi My ◽  
Aqil Ahmed ◽  
Ha Phung Thai ◽  
Sadu-ur Rehman ◽  
...  
Keyword(s):  
Pore Pressure ◽  
Formation Pressure ◽  
Pressure Analysis

scholarly journals A fishtail well design for cyclic steam injection—A case study from Yarega heavy oil field in Russia

2019 ◽  
Vol 7 (6) ◽  
pp. 2437-2455 ◽  
Author(s):  
German A. Abzaletdinov ◽  
Temitope Ajayi ◽  
Youssuf A. Elnoamany ◽  
Sergey Durkin ◽  
Ipsita Gupta
Keyword(s):  
Heavy Oil ◽  
Steam Injection ◽  
Oil Field ◽  
Well Design
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