油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2014年
2期
15-18,42
,共5页
孙璞%高刚%胡瑞卿%林耀庭
孫璞%高剛%鬍瑞卿%林耀庭
손박%고강%호서경%림요정
Xu-White模型%泥质含量%含水饱和度%砂岩孔隙纵横比%横波预测
Xu-White模型%泥質含量%含水飽和度%砂巖孔隙縱橫比%橫波預測
Xu-White모형%니질함량%함수포화도%사암공극종횡비%횡파예측
Xu-White model%shale content%water saturation (SW)%sandstone pore aspect ratio%shear wave prediction
砂泥岩的Xu-White模型常被用于横波预测,该模型综合考虑了砂泥岩中的泥质含量、孔隙度及孔隙形状、孔隙饱含流体的性质等对岩石速度的影响。为了深入了解泥质含量、含水饱和度、砂岩孔隙纵横比对Xu-White模型横波预测影响因子的大小,建立了三个气水模型进行试验并分析。结果表明:误差影响权重由高到低依次为泥质含量、砂岩孔隙纵横比、含水饱和度。运用综合考虑三个误差因素的改进Xu-White模型进行横波预测的结果与实测资料吻合性良好。
砂泥巖的Xu-White模型常被用于橫波預測,該模型綜閤攷慮瞭砂泥巖中的泥質含量、孔隙度及孔隙形狀、孔隙飽含流體的性質等對巖石速度的影響。為瞭深入瞭解泥質含量、含水飽和度、砂巖孔隙縱橫比對Xu-White模型橫波預測影響因子的大小,建立瞭三箇氣水模型進行試驗併分析。結果錶明:誤差影響權重由高到低依次為泥質含量、砂巖孔隙縱橫比、含水飽和度。運用綜閤攷慮三箇誤差因素的改進Xu-White模型進行橫波預測的結果與實測資料吻閤性良好。
사니암적Xu-White모형상피용우횡파예측,해모형종합고필료사니암중적니질함량、공극도급공극형상、공극포함류체적성질등대암석속도적영향。위료심입료해니질함량、함수포화도、사암공극종횡비대Xu-White모형횡파예측영향인자적대소,건립료삼개기수모형진행시험병분석。결과표명:오차영향권중유고도저의차위니질함량、사암공극종횡비、함수포화도。운용종합고필삼개오차인소적개진Xu-White모형진행횡파예측적결과여실측자료문합성량호。
Xu-White model of sand shale is often used in shear wave prediction. Influential factors on rock flow velocity are consid-ered in this model, such as shale content, porosity, pore configuration and pore saturated fluid properties. In order to further under-stand influential factors on shear wave prediction of Xu-White model, such as shale content, water saturation (SW), sandstone pore aspect ratio, we established three gas-water models. The test results show that error influence weight is arranged from high to low, which order is shale content, sandstone pore aspect ratio, and SW. Shear wave prediction has good agreement with measured data by considering three error factors in improved Xu-White model.