当代化工
噹代化工
당대화공
Contemporary Chemical Industry
2015年
11期
2668-2670,2673
,共4页
非均质性%聚合物驱%注入参数%组合方案
非均質性%聚閤物驅%註入參數%組閤方案
비균질성%취합물구%주입삼수%조합방안
Heterogeneity%Polymer flooding%Injection parameters%Combination scheme
真武油田块属于典型的单层孔、储层物性中等、非均质严重、低渗高含水开发单元。针对该区块的非均质性严重造成的注水开发效果较差的问题，通过开展室内高分子聚合物驱油实验，对聚合驱所用化学剂的注入浓度、注入时机、段塞大小和段塞组合等注入参数进行优化。实验结果表明：高分子聚合物驱在目标区块有很大的挖潜潜力，最佳的注入参数与组合方案为前置段塞(2500 mg/L 0.05 PV)+主段塞(1200 mg/L，0.38 PV)，该方案在水驱基础上可提高20.9个百分点。
真武油田塊屬于典型的單層孔、儲層物性中等、非均質嚴重、低滲高含水開髮單元。針對該區塊的非均質性嚴重造成的註水開髮效果較差的問題，通過開展室內高分子聚閤物驅油實驗，對聚閤驅所用化學劑的註入濃度、註入時機、段塞大小和段塞組閤等註入參數進行優化。實驗結果錶明：高分子聚閤物驅在目標區塊有很大的挖潛潛力，最佳的註入參數與組閤方案為前置段塞(2500 mg/L 0.05 PV)+主段塞(1200 mg/L，0.38 PV)，該方案在水驅基礎上可提高20.9箇百分點。
진무유전괴속우전형적단층공、저층물성중등、비균질엄중、저삼고함수개발단원。침대해구괴적비균질성엄중조성적주수개발효과교차적문제，통과개전실내고분자취합물구유실험，대취합구소용화학제적주입농도、주입시궤、단새대소화단새조합등주입삼수진행우화。실험결과표명：고분자취합물구재목표구괴유흔대적알잠잠력，최가적주입삼수여조합방안위전치단새(2500 mg/L 0.05 PV)+주단새(1200 mg/L，0.38 PV)，해방안재수구기출상가제고20.9개백분점。
Zhenwu oilfield belongs to typical single layer hole, medium reservoir physical properties, serious non homogeneity, low permeability and high water cut development unit. Due to severe heterogeneity, the waterflooding development effect is poor in this block. In this paper, the indoor polymer flooding experiment was carried out to optimize the polymer flooding injection parameters, such as chemicals injection concentration, injection timing, slug size and slug combination. The experimental results show that there is a large potential in the target block for polymer flooding. The best injection parameters and combination scheme are respectively front slug (2 500 mg/L 0.05 PV) and main slug (1 200 mg/L 0.38 PV). The scheme can improve the recovery by 20.9% on the basis of waterflooding.
