Efficiently Transferring and Sharing Drilling Data from Downhole Sensors

2016 ◽  
Author(s):  
Theresa Baumgartner ◽  
Yang Zhou ◽  
Eric van Oort
Keyword(s):  
Drilling Data ◽  
Downhole Sensors

scholarly journals Prediction of reservoir depletion degree and production GOR using logging-while-drilling data

2009 ◽  
Vol 36 (5) ◽  
pp. 617-622 ◽  
Author(s):  
Li Fangming ◽  
Tian Zhongyuan ◽  
Jiang Aming ◽  
Wang Xiaoxia
Keyword(s):  
Drilling Data ◽  
Logging While Drilling

An Approach for Modeling the Field Drilling Data

1996 ◽  
Author(s):  
Hong Xu ◽  
Tetsuro Tochikawa ◽  
Takashi Hatakeyama ◽  
Hitoshi Ota
Keyword(s):  
Drilling Data

Real-time completion monitoring with acoustic waves

Geophysics ◽  
2008 ◽  
Vol 73 (1) ◽  
pp. E15-E33 ◽  
Author(s):  
Andrey Bakulin ◽  
Alexander Sidorov ◽  
Boris Kashtan ◽  
Mikko Jaaskelainen
Keyword(s):  
Real Time ◽  
Acoustic Waves ◽  
Acoustic System ◽  
Acoustic Signatures ◽  
New Findings ◽  
Sand Control ◽  
Surveillance Method ◽  
4D Seismic ◽  
Permeability Impairment ◽  
Downhole Sensors

Deepwater production is challenged by well underperformance issues that are hard to diagnose early on and expensive to deal with later. Problems are amplified by reliance on a few complex wells with sophisticated sand-control media. New downhole data are required for better understanding and prevention of production impairment. We introduce real-time completion monitoring (RTCM), a new nonintrusive surveillance method that uses acoustic signals sent via the fluid column to identify permeability impairment in sand-screened completions. The signals are carried by tube waves that move borehole fluid back and forth radially across the completion layers. Such tube waves are capable of instant testing of the presence or absence of fluid communication across the completion and are sensitive to changes occurring in sand screens, gravel sand, perforations, and possibly in the reservoir. The part of the completion that has different impairment from its neighbors will carry tube waves with modified signatures (velocity, attenuation) and will produce a reflection from the boundary where impairment changes. We conduct a laboratory experiment with a model of a completed horizontal borehole and focus on effects of sand-screen permeability on transmitted and reflected acoustic signatures. These new findings form the basis of an RTCM method that can be thought of as “miniaturized” 4D seismic and as a “permanent log” in an individual wellbore. We present experiments with a fiber-optic acoustic system that suggest a nonintrusive way to install downhole sensors on the pipe in realistic completions and thus implement real-time surveillance with RTCM.

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