当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
6期
1385-1387,1405
,共4页
徐志涛%尹洪军%王小欣%赵欢%赵二猛
徐誌濤%尹洪軍%王小訢%趙歡%趙二猛
서지도%윤홍군%왕소흔%조환%조이맹
聚合物%渗流特征%压力特征%饱和度特征
聚閤物%滲流特徵%壓力特徵%飽和度特徵
취합물%삼류특정%압력특정%포화도특정
Polymer%Seepage characteristics%Saturation characteristics%Pressure characteristics
针对大庆油田 D 区块聚合物驱油效果变差的状况,研究聚合物在不同物性储层中的渗流特征具有重要的意义。依据大庆油田 D 区块地质特征和开发特征,建立了代表该区块的概念模型。在此基础上,通过数值模拟,研究并分析了全区的含水率、采出程度、井底流压的变化特征,同时,分析了不同渗透层的分流率特征。通过研究不同阶段的注采井间的压力特征和饱和度特征,分析得出了 D 区块聚合物驱油效果变差的主要原因是由于层内的非均质性,造成厚油层顶部剩余油的富集。该研究结果对油田的后续开发具有一定的指导意义。
針對大慶油田 D 區塊聚閤物驅油效果變差的狀況,研究聚閤物在不同物性儲層中的滲流特徵具有重要的意義。依據大慶油田 D 區塊地質特徵和開髮特徵,建立瞭代錶該區塊的概唸模型。在此基礎上,通過數值模擬,研究併分析瞭全區的含水率、採齣程度、井底流壓的變化特徵,同時,分析瞭不同滲透層的分流率特徵。通過研究不同階段的註採井間的壓力特徵和飽和度特徵,分析得齣瞭 D 區塊聚閤物驅油效果變差的主要原因是由于層內的非均質性,造成厚油層頂部剩餘油的富集。該研究結果對油田的後續開髮具有一定的指導意義。
침대대경유전 D 구괴취합물구유효과변차적상황,연구취합물재불동물성저층중적삼류특정구유중요적의의。의거대경유전 D 구괴지질특정화개발특정,건립료대표해구괴적개념모형。재차기출상,통과수치모의,연구병분석료전구적함수솔、채출정도、정저류압적변화특정,동시,분석료불동삼투층적분류솔특정。통과연구불동계단적주채정간적압력특정화포화도특정,분석득출료 D 구괴취합물구유효과변차적주요원인시유우층내적비균질성,조성후유층정부잉여유적부집。해연구결과대유전적후속개발구유일정적지도의의。
For the situation that polymer flooding effect in D block of Daqing oilfield is getting worse, the study of polymer seepage characteristics in the reservoirs with different physical properties has an important significance. According to the geological characteristics and development characteristics of D block of Daqing oilfield, conceptual model of the block was established. On this basis, the change of the characteristics of water cut, degree of reserve recovery, bottom hole flowing pressure of the block was researched and analyzed by the numerical simulation. At the same time, characteristics of the flux ratio of different permeable formation were analyzed. By studying the pressure and saturation characteristics in different stages of injection-production well, the main reasons to cause poor polymer flooding effect in the D block were analyzed. The results show that the main reason is intraformational heterogeneity which causes the remaining oil enrichment at the top of thick oil layers. The result has a certain guiding significance of follow-up development to the oilfield.