齐- 双地区热河台油层油气藏形成条件和分布规律

Reservoir formation condition and distribution law
of R ehe tai oil formation in Q i- Shuang area

王崇维

W ang Chongwe i

辽河油田公司勘探开发研究院, 辽宁盘锦124010

 ( Research Inst itute of Explorat ion
and Development, L iaohe Oilfie ld Company, CNPC,
Panjin 124010, China)

A fter comprehens ive resea rch on the form ation cond ition
and d istr ibution law of Reheta i o il layer reservo ir in the Q i-
Shuang area, the conclusion is that the m a in reservo ir in the
Q ijia ram p reg ion is "Foliaceous" litho log ic reservo ir. The oil
and gas in the sou th o f this a rea is sufficien t. The depo sition
o f sand in the no rth is sequentia ,l but on ly some sing le layer
reservo ir is fo rm ed in the no rth. The ma in reservo ir in the
Shuangta izi anticlinal belt is struc tura l hydroca rbon reservo ir,
and o il m ainly accumu la tes in the ax ial reg ion of the
anticline. The o il accum ulation is reso lved by the area and
closure of block fau lt, thickness and physical property o f
reservo ir. Based on the o il d iffe rentia l accumu lation theory,
the m a in agg regation in the Shuang taizi anticlinal be lt is gas
and o il in the Q ijia ramp reg ion. W ate r is in the a rch bend.
The arch bend is the m a in m igration path, but there is not
preservative cond ition.