IDENTIFIKASI LINGKUNGAN PENGENDAPAN BATUAN KARBONAT CEKUNGAN JAWA TIMUR UTARA MENGGUNAKAN ANALISIS ELEKTROFASIES DATA LOG GAMMA-RAY
نویسندگان
چکیده
Dalam mengembangkan lapangan produksi minyak dan gas, perlu dilakukan studi lingkungan pengendapan untuk dapat meningkatkan kualitas hasil produksi. Cekungan Jawa Timur Utara sebagian besar merupakan cekungan lepas pantai yang menghasilkan gas dengan shale Formasi Ngimbang sebagai batuan induk menggenerasikan hidrokarbon ke reservoir berupa karbonat (Formasi Kujung). Identifikasi menganalisa pola kurva log Gamma-Ray (GR) disebut analisis elektrofasies. Penelitian ini bertujuan berdasarkan terbentuk pada GR. Pola GR memiliki karakter khusus berhubungan kemudian dihubungkan data biostratigrafi justifikasi. Dengan menggunakan 3 sumur, didapati adanya elektrofasies cylindrical funnel mengindikasikan tubuh keep-up carbonate catch-up terendapkan laut dangkal. Adanya indikator organisme dangkal seperti microgastropods, byrozoa , fragmen cangkang biostratigrafi, mendukung interpretasi daerah penelitian di
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ژورنال
عنوان ژورنال: Jurnal geosaintek
سال: 2023
ISSN: ['2460-9072', '2502-3659']
DOI: https://doi.org/10.12962/j25023659.v9i1.12628