It is pointed out that the discovery of contour drifts is the most important anddistinctive achievement in this field and the contour current deposit study is significant in oil and gas exploration.

Different bed forms including contour drifts and sediment waves associate with each other orderly.

The Lower Cambrian contour sediment is grown up in a deep water slope zone It is divided into two types of silty and shaly contourite and sandy contourite Three kinds of contourite profile structures such as perfect (I) and imperfect (Ⅱ,Ⅲ) are described,genetic interpretation is made on them, certain features of the contourites are discusse

Developing turbidite oil reservoir in high watercut period by horizontal wells-taking Liangjialou oilfield as example;

The preceding description of turbidite oil reservoir has become the key of developing this type of oil reservoir due to its concealment, deep burial depth and great difficulty in exploration and development.