Results 141 to 150 of about 240 (159)
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SPE Europec featured at 78th EAGE Conference and Exhibition, 2016
Abstract The transgressive sandstones of the Badenian 16.TH reservoir have been on production for over 65 years. As part of a recent field re-development project the oil production has been accelerated with high-angle/horizontal wells. Targeting drainage areas to access attic oil with the accurate placement of these boreholes was deemed ...
P. Toth +6 more
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Abstract The transgressive sandstones of the Badenian 16.TH reservoir have been on production for over 65 years. As part of a recent field re-development project the oil production has been accelerated with high-angle/horizontal wells. Targeting drainage areas to access attic oil with the accurate placement of these boreholes was deemed ...
P. Toth +6 more
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SIAM Journal on Applied Mathematics, 2006
We simulate electromagnetic (EM) measurements acquired with a logging‐while‐drilling (LWD) instrument in a borehole environment. The measurements are used to assess electrical properties of rock formations. Logging instruments as well as rock formation properties are assumed to exhibit axial symmetry around the axis of a vertical borehole.
David Pardo +3 more
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We simulate electromagnetic (EM) measurements acquired with a logging‐while‐drilling (LWD) instrument in a borehole environment. The measurements are used to assess electrical properties of rock formations. Logging instruments as well as rock formation properties are assumed to exhibit axial symmetry around the axis of a vertical borehole.
David Pardo +3 more
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SPE Middle East Oil & Gas Show and Conference, 2015
Abstract Fluids saturations in new wells are usually derived from resistivity measurements, using locally selected or calibrated resistivity equations. Some drawbacks to resistivity measurements are multiple environmental corrections in high-angle wells, thin beds, washed-out boreholes, and complex invasion profiles.
Khadeeja A. Al-Daghar +6 more
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Abstract Fluids saturations in new wells are usually derived from resistivity measurements, using locally selected or calibrated resistivity equations. Some drawbacks to resistivity measurements are multiple environmental corrections in high-angle wells, thin beds, washed-out boreholes, and complex invasion profiles.
Khadeeja A. Al-Daghar +6 more
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Acoustic Logging While Drilling (LWD): Experimental Studies with Anisotropic Models
2002A model LWD tool (0.16" ID, 0.4" OD) was built to investigate its operation in an anisotropic formation. The tool consists of a dipole source and six dipole receivers capable of operating at several hundred kHz. The formation was a block of delabole slate with a borehole of 1.27 cm diameter.
Rao, Rama V. N. +3 more
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Elimination of LWD (Logging-While-Drilling) Tool Modes Using Seismoelectric Data
2006Borehole acoustic logging-while-drilling (LWD) for formation evaluation has become an indispensable part of hydrocarbon reservoir assessment (Tang et al., 2002; Cittá et al., 2004; Esmersoy et al., 2005). However, the detection of acoustic formation arrivals1over tool mode contamination has been a challenging problem in acoustic LWD technology. This is
Zhan, Xin +5 more
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A comparison of logging while drilling (LWD) and wireline acoustic measurements
2006The instruments used to measure borehole acoustic data can be classified as either wireline or logging while drilling (LWD). The wireline tool measures formation speeds after the borehole is drilled, and the LWD tool measures formation speeds while the borehole is drilled.
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Characteristics of the collar wave in acoustic logging while drilling (LWD)
SEG Technical Program Expanded Abstracts 2016, 2016Wei Guan, Yufeng Yang, Hengshan Hu
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