南裏海盆地之石油系統及其探勘潛能

Petroleum System and exploration potential of South Caspian Sea Basin

沈俊卿(J.C. Shen) ； 丁信修(H.H. Ting) ； 林政遠(C.Y. Lin) ； 孫美蓉(M.L. Sun)

《鑛冶：中國鑛冶工程學會會刊》 52卷4期 (2008/12) Pp. 150-168

https://doi.org/10.30069/MM.200812_52(4).0015

摘要

南裏海盆地為一新生代開始發育的盆地，其構造運動雖然自中新世即開始，但主要的運動係發生於上新世晚期；而泥岩的穿刺作用也隨著於更新世從西南側開始活動，至第四紀時遍及整個盆地，並形成油氣儲集構造，快速的沈積及埋深作用，使得本區域油窗範較大也較深（6000∼12000公尺），漸新世至中新世的Maykop及Diatom富含產油有機物被認為是此區域的主要油供應源，南裏海的氣藏具高成熟度其應為盆地深部產物。以近代生油岩沈積模式在深盆出現富集生油岩，加上以上部上新世、更新世均存在高富集生油岩，若中新世晚期沈積時也在盆地深處堆積良好生油岩，則裏海深盆構造的探油可以有相當高的期待。儲集層則以晚上新世及第四紀的為標的。

關鍵字

裏海 ； 探勘潛能 ； 石油系統

並列摘要

The South Caspian Sea Basin began to develop during the Miocene and developed fully with completion of major tectonic movements in Late Pliocene. Mud protrusions in the southwestern side of the basin were activated in Pliocene and spread throughout the basin in Quaternary. Mud protrusion is the major mechanism for developing the geological structures for hydrocarbon accumulation. Rapid sedimentation and deep burial made the source and reservoir formation cover a large area of the basin and stay deep (6000~12000 meter). Oligocene to Miocene organic-enrich Maykop and Diatom Formation are the well-known principal hydrocarbon sources in this area. The maturity of gas formation indicates products from the deeper parts of the basin. Results of geochemistry modeling reveal that rich organic sources could exist in the Late Miocene sediments in the deeper part of basin, and hydrocarbon accumulation in the Late Pliocene and Quaternay reservoirs is highly possible.

並列關鍵字

Petroleum System ； Caspian Sea ； hydrocarbon potential