A New Petrophysically Constrained Predrill Pore Pressure Prediction Method for the Deepwater Gulf of Mexico: A Real-Time Case Study

2001 ◽  
Author(s):  
Nader Dutta ◽  
Stephan Gelinsky ◽  
Mike Reese ◽  
Mashiur Khan
Keyword(s):  
Gulf Of Mexico ◽  
Real Time ◽  
Pore Pressure ◽  
Prediction Method ◽  
Pore Pressure Prediction

Predrill pore-pressure prediction and pore pressure and fluid loss monitoring during drilling: A case study for a deepwater subsalt Gulf of Mexico well and discussion on fracture gradient, fluid losses, and wellbore breathing

2014 ◽  
Vol 2 (1) ◽  
pp. SB45-SB55 ◽  
Author(s):  
Fernando Enrique Ziegler ◽  
John F. Jones
Keyword(s):  
Gulf Of Mexico ◽  
Pore Pressure ◽  
Horizontal Stress ◽  
Fluid Loss ◽  
Pressure Profiles ◽  
Pore Pressure Prediction ◽  
Fracture Gradient ◽  
Minimum Horizontal Stress ◽  
Fluid Losses

In this case study, the overburden, pore-pressure, and fracture gradients are calculated for several nearby analog wells and subsequently used to generate a predrill pore-pressure prediction for the deepwater subsalt Gulf of Mexico well, Flying Dutchman, located in Green Canyon 511 no. 1 (OCS-G 22971). Two key analog wells penetrated the lower Miocene and have sufficient data to generate pore-pressure profiles. Subsequently, the predrill pore-pressure prediction is found to be in good agreement with the pore pressure estimated from well logs while drilling. During the drilling phase of the Flying Dutchman well, two zones of significant fluid loss and wellbore breathing were encountered and are evaluated as a means of determining the formation types where they are most likely to occur, as well as their related minimum horizontal stress and fracture gradient.

Ahead of Bit Pore Pressure Prediction using VSP - A Case Study in South China Sea

2010 ◽  
Author(s):  
Yuhong Xie ◽  
Jun Cai ◽  
Ling Xia Zhen ◽  
Hong Tian ◽  
Yan Hua Li ◽  
...  
Keyword(s):  
South China Sea ◽  
Pore Pressure ◽  
South China ◽  
China Sea ◽  
Pore Pressure Prediction

Pore pressure prediction while drilling: Three-dimensional earth model in the Gulf of Mexico

AAPG Bulletin ◽  
2018 ◽  
Vol 102 (04) ◽  
pp. 691-708 ◽  
Author(s):  
Fausto Mosca ◽  
Thomas Hantschel ◽  
Obren Djordjevic ◽  
Jim McCarthy ◽  
Ana Krueger ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Pore Pressure ◽  
Three Dimensional ◽  
Earth Model ◽  
Pore Pressure Prediction

scholarly journals Real-Time Pore Pressure Detection: Indicators and Improved Methods

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Jincai Zhang ◽  
Shangxian Yin
Keyword(s):  
Real Time ◽  
Pore Pressure ◽  
Wellbore Instability ◽  
Abnormal Pressure ◽  
Measurement While Drilling ◽  
Pore Pressure Prediction ◽  
Pressure Indicators ◽  
Background Gas ◽  
Mud Logging ◽  
Improved Methods

High uncertainties may exist in the predrill pore pressure prediction in new prospects and deepwater subsalt wells; therefore, real-time pore pressure detection is highly needed to reduce drilling risks. The methods for pore pressure detection (the resistivity, sonic, and corrected d-exponent methods) are improved using the depth-dependent normal compaction equations to adapt to the requirements of the real-time monitoring. A new method is proposed to calculate pore pressure from the connection gas or elevated background gas, which can be used for real-time pore pressure detection. The pore pressure detection using the logging-while-drilling, measurement-while-drilling, and mud logging data is also implemented and evaluated. Abnormal pore pressure indicators from the well logs, mud logs, and wellbore instability events are identified and analyzed to interpret abnormal pore pressures for guiding real-time drilling decisions. The principles for identifying abnormal pressure indicators are proposed to improve real-time pore pressure monitoring.

Seismic pore pressure prediction without well data and poorly defined normal compaction trend lines: a case study from the Río Bravo Delta, Northern Mexico

2005 ◽  
Author(s):  
Juan C. Clarembaux ◽  
Marcelo Giusso ◽  
Roberto Gullco ◽  
Daniel Mujica ◽  
Carlos Carabeo Miranda ◽  
...  
Keyword(s):  
Pore Pressure ◽  
Northern Mexico ◽  
Pore Pressure Prediction ◽  
Rio Bravo ◽  
Well Data
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