TY  - CONF
ID  - scholars6440
SP  - 480
TI  - Estimating Direct Waves with Respect to Receiver Offset, Antenna Current and Frequency in MCSEM
KW  - Antennas; Curve fitting; Decision making; Dipole antennas; Functions; Offshore oil wells; Oil fields; Risk analysis; Risk assessment; Uncertainty analysis
KW  -  Antenna currents; Antenna frequency; Controlled source; Decision making process; Direct waves; Mathematical functions; MCSEM; Offshore environments
KW  -  Offshore oil fields
N2  - Marine controlled source electromagnetics is a relatively new de-risking method in hydrocarbon surveys. Normally undertaken as a confirmation or supplementary process to the seismic methods, this process often is applied in offshore environments. It enhances the decision-making process in offshore oil fields minimizing risk analysis associated with the uncertainties present in the oil and gas searching process. Such uncertainties may lead to losses of hundreds, even thousands, of millions of dollars in missed target or false target drilling. To reduce this risk major components of the received data from the subsurface have to be studied, evaluated, quantified and eliminated before decisions are made. One such this data component is the direct wave from the transmitting device directly to the receiver. This paper proposes an assisted methodology to quantify direct waves as a function of the transmitting current of the antenna, antenna frequency with respect to offset of the receiver from the antenna. To do so, first comprehensive simulations of related scenarios were developed and analyzed. A mathematical function was developed to model the representativeness of a specific model to an actual sea bed logging environment. Then, the mathematical model was validated with a blind data set to measure its accuracy. © 2016 IEEE.
N1  - cited By 7; Conference of 6th International Conference on Computer and Communication Engineering, ICCCE 2016 ; Conference Date: 25 July 2016 Through 27 July 2016; Conference Code:125901
AV  - none
EP  - 484
A1  - Nyamasvisva, T.E.
A1  - Yahya, N.
A1  - Hasbullah, H.B.
A1  - Rauf, M.
A1  - Rostami, A.
A1  - Dahy, E.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015036155&doi=10.1109%2fICCCE.2016.106&partnerID=40&md5=2cd59bc08f6c662ef5aadcb37be77b86
PB  - Institute of Electrical and Electronics Engineers Inc.
SN  - 9781509024278
Y1  - 2016///
ER  -