Oil-reservoir Forming Features and Exploration Technology in Laohekou Oil Field

Laohekou oil field is located at the north slope of Chengdong arch, and the upper Guantao Formation is the main oil-bearing series. The Chengbei oil-generative sag is north of Laohekou oil field, which has ample oil source supplies. Multi-stage developed meandering stream sandstone bodies have formed a lot of lithologic reservoirs in the upper Guantao Formation which are buried shallowly and has large superposition area and simple oil-reservoir type. Using horizontal slice and spectral separability on exploration deployment and reserves computation, achieves satisfactory result. It reflects distribution of oil layer truly and dopes out geological reserves better.