The characteristics and accumulation conditions of tight oil in the Huoshaoshan area, eastern Junggar basin, northwest China

ABSTRACT

Source rock and oil geochemistry and reservoir physical property research were employed to study the characteristics and accumulation conditions of tight oil in Huoshaoshan area. The result indicated the maturity and physical properties of oil were varied in different well blocks though the source rocks were in similar maturity stage, the reservoir physical property was key factor to cause the diversities of oil characteristics. The tight reservoir is almost filled with low-mature oil derived from native source rocks, the relatively good reservoir not only accumulates local low-mature oil, but also reserve lots of mature oil from other source rocks.

KEYWORDS:

• Accumulation pattern
• Huoshaoshan area
• reservoir physical properties
• source rock geochemistry
• tight oil

Funding

Funding for this research was provided by programs from the National Basic Research Program of China-973 (No. 2014CB239005) and National Natural Science Foundation of China (No. 41572137).