Penentuan lingkungan pengendapan dan zona potensi reservoar hidrokarbon lapangan "K" pada formasi Talang Akar, Cekungan Sunda berdasarkan analisis petrofisika dan elektrofasies = Determination of depositional environment and potential hydrocarbon reservoir zone of field "K" in Talang Akar Formation, Sunda Basin based on Petrophysical and Electrofacies analysis