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伊川凹陷位于华北盆地南缘，属于中新生代凹陷．凹陷内三叠系上统谭庄组和椿树腰组为主要生油层段，且为较好－好生油岩。有机质以Ⅲ型干酪根为主，热演化处于低～成熟阶段，燕山早期为主要生油时期，原油县近源短距运移的特点。
The Ikawa Sag is located in the southern margin of the North China Basin and belongs to the Mesozoic-Cenozoic depression. The Triassic Upper Tanzhuang Formation and Chunshuang Formation in the depression are the major oil-producing intervals, and are better-Hesheng oil-rock. The organic matter is mainly Type Ⅲ kerogen, and the thermal evolution is in a low-maturity stage. The early Yanshanian is characterized by short-distance migration of crude oil near the source during the primary oil-producing period.