In space with in - situ stress knowledge deepen
progressively ,it attaches incresingly impotance to the role of
exploration and development for oil and gas. This paper
determines the character of stress and fracture of Toutunhe
reservoirs in Luliang oilfield , by testing core and analyzing
the data of hydraulic fracture. The direction of horizontal
stress is NW,the gradient of stress is abort 0. 0121MPa/ m ,
the strike of natural fracture is about EW. It reflects
objectively in - situ stress condition for Toutunhe reservoir in
Luliang oilfield. On the basis of these , this paper elaborates
simply the relation between fracture and in - situ stress ,and
analyzes the state of fracture propagation under hydrulic
fracture ,and analyzes the infection that the in - situ stress
and the fracture affect development of Toutunhe reservoir in
Luliang oilfield.
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