摘要
对临南油田沙三中泥质砂岩油层低电阻的成因机理进行了研究,认为泥质附加导电性不是泥质砂岩油层电阻率降低的主导因素,更重要的是高束缚水饱和度和高地层水矿化度。将孔隙度作为选取含水饱和度解释模型和测井评价的约束条件,对低阻油层进行评价,重新计算了储量,增加地质储量200万吨。对临南油田的开发具有较强的指导作用。
The origins of low-resistivity hydrocarbon shaly sands in the middle of Sand Three of Linnan Dill ield is analyzed in the paper. The result is that the additional conductivity of clay mineral is not the dominant cause ,while the more in portant factors are high irreducible water saturation and high salinity. Poresity is considered to be a controlling condition for choosing saturation and log evalution to evaluate Low--resistivity shaly sands, reserve is recalculated and original oil in place of 200×10^4 is proved. Undoubtedly the extending application of then will,play the most inportant role in oil and gas E＆P for Linnan Oiffield.
出处
《内蒙古石油化工》
CAS
2006年第1期112-113,共2页
Inner Mongolia Petrochemical Industry
