241202005038 - Proposed Multiclient/Proprietary Controlled Source Electromagnetic (CSEM) Surveys Over the Area of Interest (AOI) covering Blocks 1910B, 1910A, 19112010A, 2011A, 2010B, 2011B, 2012B, 2111A, 2112A, 2113B, 2111Bb, 2111Ba, 2112B, 2211Ab, 2211Aa, 2212A, 2211B

The Proponent (Electromagnetic Geoservices (EMGS) ASA) requires and ECC with respect to the proposed Multiclient/Proprietary Controlled Source Electromagnetic (CSEM) Surveys over the Area of Interest (AOI) covering Blocks 1910B, 1910A, 19112010A, 2011A, 2010B, 2011B, 2012B, 2111A, 2112A, 2113B, 2111Bb, 2111Ba, 2112B, 2211Ab, 2211Aa, 2212A, 2211Bb, 2211Ba, 2212B, 2311B, 2311A, 2312, 2313, 2411, 2412A, 2412B, 2413A, 2413B, 2512B, 2512A, 2513, 2611, 2612B, 2612A, 2613, 2711, 2712B, 2712A, 2713, 2714A, 2714B, 2811, 2812B, 2812A, 2813B, 2813A, 2814B, 2814A, 2912, 2913B, 2913A, 2914A, 2914B, and 2915 and Portions of Blocks 1912B, 2012A, 2013A, 2013B, 2113A, 2213, 2514, 2511, 2612A, 2715B, 2815, and 2915, and (Excluding Tripp Seamount), Walvis, Lüderitz and Orange Basins, Offshore Namibia. The Proposed AOI falls in water depths ranging from ca-200 m to more than ca-4000m, from east to west, respectively. Although the outlined AOI by EMGS represents a large area coverage, the actual likely location specific Multiclient/Proprietary CSEM Survey projects to be originated within the AOI will be limited to the specific Petroleum Exploration Licenses (PELs) and Blocks. The likelihood of implementing specific projects within the proposed AOI will largely depend on the expression of interests by the PELs holders or the Government wanting to acquire Multiclient/Proprietary CSEM data sets over their rights areas. The location specific CSEM Surveys projects likely to be originated within the outlined AOI, will be undertaken over multiple annual survey events subject to the Proponent being granted an ECC, favourable, commercial agreements, favourable weather windows, and local receiving environmental conditions. If all the commercial, environmental assessment and permitting conditions favourable, the first Multiclient/Proprietary CSEM Survey may be undertaken between December 2024-March 2025. The proposed survey will be undertaken using one (1) or two (2) third-party chartered survey surveys compliant to the International Convention for the Prevention of Pollution from Ships (MARPOL) and Namibian Maritimes legal requirements. Marine CSEM is an environmentally benign exploration technology and is not same as seismic survey operations. The basic principle of the proposed CSEM survey method is the application of electric and magnetic (electromagnetic (EM)) fields in the mapping or imaging of electric resistivity distribution of the subsurface in the marine environment for petroleum exploration. During the CSEM survey operations, EM field receivers are deployed on the seafloor spaced between 2 - 3 km apart over an Area of Interest (AOI) and weighed down by environmentally benign anchors made of degradable concrete / compacted sand that easily breaks down naturally. The CSEM survey uses a 300 to 400 m long horizontal dipole (single pole) source that is towed 20-30m above the seabed recorders and transmit a time-varying electromagnetic field into the earth. The field being emitted by the source is modified by the presence of subsurface resistive layers and these changes are detected and logged by an array of receivers placed on the seabed. The transmission currents are typically binary waveforms with 0.1- to 0.25-Hz (very low frequency and large wavelength). The processed data can determine the resistivity of the underlying rock. Hydrocarbon-bearing rock shows greater resistivity relative to water-bearing rock and thus areas that appear highly resistive may indicate the presence of hydrocarbons. The duration a CSEM Survey operations will typically be around thirty (30) days and will involve ten (10) days for deployment of receivers, ten (10) days for transmission (source towing) and ten (10) days for recovering the receivers from the seabed.