A Novel and Sustainable Generation of Advanced Mud Gas Logging System for Managed Pressure Drilling Applications: An Explorative Well Deployment from North Germany

2021 ◽  
Author(s):  
Daniela Marum ◽  
Ansgar Cartellieri ◽  
Edisa Shahini ◽  
Donata Scanavino

Abstract Summary In the high risk Managed Pressure Drilling operations, increased certainty given by Mud Logging is a critical deliverable to guarantee a safe drilling environment even under challenging conditions and, to provide the first indications for reservoir evaluation. This paper describes a novel product application that successfully obtains advanced mud gas data from a Managed Pressure Drilling environment, proven in flow-loop and field applications (in Lower Saxony, Germany), by reducing service footprint as well as power consumption.

2008 ◽  
Author(s):  
Egil Ronaes ◽  
Ole Iacob Prebensen ◽  
Renate Mikalsen ◽  
Knut Taugbol ◽  
Svein Syltoy ◽  
...  

2003 ◽  
Vol 36 ◽  
pp. 1-173 ◽  
Author(s):  
Lowell Lindgren ◽  
Colin Timms

The ‘Venetian’ composer Agostino Steffani and the Modenese diplomat Giuseppe Riva became acquainted at Hanover in 1719. Steffani had first resided there between 1688 and 1703, when he served the Hanoverian Duke Ernst August and his son Georg Ludwig as a musician and special envoy (he went to Vienna, for example, to negotiate the elevation of Hanover to an electorate, a distinction approved by the emperor in 1692). He had been ordained a Catholic priest at Munich in 1680, received a sinecure appointment as an abbot in 1683 and been made an apostolic prothonotary by 1695. His diplomatic and evangelical achievements on behalf of the church were recognized in 1706, when he was named Bishop of Spiga, and 1709, when he was appointed Apostolic Vicar of North Germany. His home in 1703–9 was in Düsseldorf, where he served as chief councillor to Johann Wilhelm, the Catholic Elector Palatine, but in November 1709 he returned to Hanover, a Lutheran city in Lower Saxony nearer the centre of his extensive vicariate.


2011 ◽  
Author(s):  
Rachel Lynn Johnson ◽  
Julio Cesar Montilva ◽  
Mohamed Fagir Sati ◽  
Jeffery L. Grable ◽  
Saad Saeed ◽  
...  

2021 ◽  
Author(s):  
Chih-Cheng Lin ◽  
Andrew G. Tallin ◽  
Xueyong Guan ◽  
Jiten D. Kaura ◽  
Sasha F. Luces ◽  
...  

Abstract One of the major technical challenges to this project was placing horizontal open hole gravel packs (HzOHGP) within the narrow pore pressure to frac-gradient (PPFG) margin in the target reservoirs. This paper addresses the steps taken to overcome this challenge. To maximize the use of the narrow PPFG margin, the project combined a managed pressure drilling (MPD) system with low gravel placement pump rates made possible by an ultra-light-weight proppant (ULWP).  Of the MPD systems available, the Controlled Mud Level (CML) system was selected over the Surface Back Pressure (SBP) system for several reasons. It enabled conventional gravel pack pumping operations and equipment and it accommodated the brine weight needed to inhibit the shales. A series of lab tests showed that the completion fluid density required to inhibit the reservoir shale reactivity was only possible using CML. An overall evaluation of CML showed that it was most suitable and offered the greatest flexibility for the gravel pack job design. The special ceramic ULWP had to be qualified and tested.  The qualification testing ranged from standard API and compatibility tests to full scale flow loop testing. The flow loop tests were needed to measure the ULWP transport velocity for the target wellbore geometry. Understanding the transport velocity is critical for gravel pack design and job execution planning. Once MPD and ceramic ULWP were selected, the gravel pack placement operations were simulated to demonstrate that their features increased the likelihood of successfully gravel packing in the target reservoirs.  Small PPFG margins decrease the probability of success of placing a HzOHGP.  In the target formations, the pressure margin is insufficient to safely execute HzOHGP conventionally; instead, the project combined MPD and the low pump rates facilitated by using ULWP to control circulating pressures to stay inside the narrow margin and place the gravel packs. The integration of CML and ULWP into in a gravel pack operation to control circulating pressures has never been done. The concept and its successful field implementation are industry firsts.


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