岩性油气藏
巖性油氣藏
암성유기장
LITHOLOGIC RESERVOIRS
2011年
5期
60-63,100
,共5页
灰色系统%权系数%储层评价%葡萄花油田%松辽盆地北部
灰色繫統%權繫數%儲層評價%葡萄花油田%鬆遼盆地北部
회색계통%권계수%저층평개%포도화유전%송료분지북부
grey system%weight coefficient%reservoir evaluation%Putaohua Oilfield%northern Songliao Basin
介绍了灰色系统理论在储层评价中的应用。首先采用谱系聚类分析方法选择相对独立的评价参数,从10个参数中选择了6个参数用于储层综合评价,分别为变异系数、泥质含量、有效厚度、含油饱和度、孔隙度、渗透率;并用灰色系统理论关联分析法确定了各参数的权系数。在计算储层综合评价指标值的基础上,采用拐点法确定储层综合评价的分类阈值,进而对葡萄花油田进行了储层综合定量评价,取得了较好的效果。葡北地区以Ⅰ类、Ⅱ类储层为主,葡南地区以Ⅱ类、Ⅲ类储层为主。
介紹瞭灰色繫統理論在儲層評價中的應用。首先採用譜繫聚類分析方法選擇相對獨立的評價參數,從10箇參數中選擇瞭6箇參數用于儲層綜閤評價,分彆為變異繫數、泥質含量、有效厚度、含油飽和度、孔隙度、滲透率;併用灰色繫統理論關聯分析法確定瞭各參數的權繫數。在計算儲層綜閤評價指標值的基礎上,採用枴點法確定儲層綜閤評價的分類閾值,進而對葡萄花油田進行瞭儲層綜閤定量評價,取得瞭較好的效果。葡北地區以Ⅰ類、Ⅱ類儲層為主,葡南地區以Ⅱ類、Ⅲ類儲層為主。
개소료회색계통이론재저층평개중적응용。수선채용보계취류분석방법선택상대독립적평개삼수,종10개삼수중선택료6개삼수용우저층종합평개,분별위변이계수、니질함량、유효후도、함유포화도、공극도、삼투솔;병용회색계통이론관련분석법학정료각삼수적권계수。재계산저층종합평개지표치적기출상,채용괴점법학정저층종합평개적분류역치,진이대포도화유전진행료저층종합정량평개,취득료교호적효과。포북지구이Ⅰ류、Ⅱ류저층위주,포남지구이Ⅱ류、Ⅲ류저층위주。
The application of grey system theory to reservoir evaluation is introduced.The hierarchical-cluster analysis is firstly adopted to select relatively independent evaluation parameters,and six parameters are selected out of ten parameters,including variation coefficient,shale content,effective thickness,oil saturation,porosity and permeability.And then correlation analysis of grey system theory is used to determine the weight coefficient of each parameter.Based on calculation of the indexes for comprehensive evaluation of reservoir,inflection-point method is adopted to determine the classifying thresholds for the comprehensive evaluation of reservoir,and then conduct comprehensive quantitative evaluation.Good evaluation effects have been achieved.There are mainly type Ⅰ and Ⅱ reservoir in northern Putaohua Oilfield,and type Ⅱ and Ⅲ reservoir in southern Putaohua Oilfield.
