J油田吸附滞留和不可及孔隙体积实验研究
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摘要
为定量描述吸附滞留孔隙体积和不可及孔隙体积在聚合物驱过程的变化情况,从而为渤海J油田聚合物驱方案优化提供重要依据,参照渤海J油田特征参数,依据相似原则开展了聚合物驱油以及产聚质量浓度测试实验研究。结果表明,聚合物质量浓度与吸光度具有较好的线性关系,能够较为可靠地用来计算产聚质量浓度;在聚合物相同质量浓度条件下,吸附滞留孔隙体积和不可及孔隙体积随岩心渗透率降低而增加;在驱替岩心渗透率相近的情况下,吸附滞留孔隙体积和不可及孔隙体积随注聚质量浓度增加而增加。渤海J油田吸附滞留孔隙体积为0.04～0.22 PV,不可及孔隙体积为0.12～0.22 PV。
In order to quantitatively describe the changes of adsorption retention pore volume and Inaccessible pore volume in polymer flooding process, and provide an important basis for the optimization of Bohai J oilfield polymer flooding project, the experimental that research on polymer flooding and test of polymer output concentration is carried out according to the similarity principle, referring to the characteristic parameters of Bohai J oilfield. The experimental results show that there is preferably linear relationship between polymer solution concentration and absorbance,under the same concentration of injection polymer solution,the adsorption retention pore volume and inaccessible pore volume increase with decrease of core permeability,for the cores of same permeability, the adsorption retention pore volume and inaccessible pore volume increase with the increase of polymer injection concentration. The adsorption retention pore volume is about 0.04～0.02 PV and the inaccessible pore volume is about0.12～0.22 PV of Bohai J oilfield.
In order to quantitatively describe the changes of adsorption retention pore volume and Inaccessible pore volume in polymer flooding process, and provide an important basis for the optimization of Bohai J oilfield polymer flooding project, the experimental that research on polymer flooding and test of polymer output concentration is carried out according to the similarity principle, referring to the characteristic parameters of Bohai J oilfield. The experimental results show that there is preferably linear relationship between polymer solution concentration and absorbance,under the same concentration of injection polymer solution,the adsorption retention pore volume and inaccessible pore volume increase with decrease of core permeability,for the cores of same permeability, the adsorption retention pore volume and inaccessible pore volume increase with the increase of polymer injection concentration. The adsorption retention pore volume is about 0.04～0.02 PV and the inaccessible pore volume is about0.12～0.22 PV of Bohai J oilfield.
引文
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[13]马庆霞,张忠智,苗建生,等.淀粉-碘化镉法测定部分水解聚丙烯酰胺浓度的影响因素分析[J].化学与生物工程,2010,27(6):80-82.Ma Q X,Zhang Z Z,Miao J S,et al. Analysis of the effects on determination of concentration of partially hydrolyzed polyacrylamide by strach-cadmium iodide method[J].Chemistry&Bioengineering,2010,27(6):80-82.
[2]贾玉琴,杨海恩,张涛,等.低渗透油藏聚合物微球驱适应性分析及油藏筛选[J].辽宁石油化工大学学报,2017,37(1):38-40.Jia Y Q,Yang H E,Zhang T,et al.Adaptability analysis of polymer microsphere flooding in low permeability reservoir and reservoir selection[J].Journal of Liaoning Shihua University,2017,37(1):38-40.
[3]李红英,王欣然,陈善斌,等.层内夹层对海上聚合物驱油田剩余油分布影响[J].特种油气藏,2018,25(5):135-140.Li H Y,Wang X R,Chen S B,et al.Effect of intra-formational bed on the remaining oil distribution in offshore polymerflooding reservoir[J].Special Oil&Gas Reservoirs,2018,25(5):135-140.
[4]王欣然,李红英,谷志猛,等.非均质微观模型驱替剩余油分布规律研究[J].石油地质与工程,2018,32(5):87-90.Wang X R,Li H Y,Gu Z M,et al.Remaining oil distribution of polymer flooding by heterogeneous microscopic model[J].Petroleum Geology and Engineering,2018,32(5):87-90.
[5]赵金省,张星,马天态,等.聚合物驱提高采收率实验研究[J].石油与天然气化工,2010,39(1):55-64.Zhao J S,Zhang X,Ma T T,et al. Experiment study on enhance recovery efficiency in polymer flooding[J]. Chemical Engineering of Oil&Gas,2010,39(1):55-64.
[6]李红英,王欣然,宋洪亮,等.海上油田聚驱后聚表二元驱实验研究及应用[J].复杂油气藏,2018,11(2):74-78.Li H Y,Wang X R,Song H L,et al. Experiment research and application of polymer-srufactant flooding after polymer flooding in offshore oilfield[J].Complex Hydrocarbon Reservoirs,2018,11(2):74-78.
[7]李爱芬,宋浩鹏,谢昊君.聚合物驱不可及孔隙体积对渗流规律的影响[J].油气地质与采收率,2016,23(2):70-75.Li A F,Song H P,Xie H J.Influence of inaccessible pore volume on seepage law of polymer flooding[J].Petroleum Geology and Recovery Efficiency,2016,23(2):70-75.
[8]李朝霞,夏惠芬.聚合物溶液对孔隙结构特征的影响[J].石油与天然气地质,2012,33(3):479-483.Li Z X,Xia H F.Effect of polymer solution on pore structure characteristics[J].Oil and Gas Geology,2012,33(3):479-483.
[9]张文龙,孙丽艳,齐梦,等.聚合物驱不可及孔隙体积室内实验研究[J].石油化工高等学校学报,2016,29(4):35-37.Zhang W L,Sun L Y,Qi M,et al.Laboratory experiment on inaccessible pore volume of polymer flooding[J].Journal of Petrochemical University,2016,29(4):35-37.
[10]李先明,刘姝,王晓宁.吸附扩散现象的研究现状及展望[J].辽宁石油化工大学学报,2018,38(2):20-25.Li X M,Liu S,Wang X N. Research status and prospect of adsorption and diffusion[J]. Journal of Liaoning Shihua University,2018,38(2):20-25.
[11]黄彦,毕颖丽,甄开吉,等.聚丙烯酰胺在油砂岩芯中的不可及孔隙体积[J].吉林大学自然科学学报,1998(4):78-80.Huang Y,Bi Y L,Zhen K J,et al.The inaccessible pore volume for polyacrylamide in oily-sand cores[J].Acta Scientiarum Naturalium Universitatis Jilinensis,1998(4):78-80.
[12]叶仲斌,刘向君,肖勇,等.HPAM溶液在油藏岩石中的物化参数测定方法研究[J].西南石油大学学报(自然科学版),2001,23(6):63-66.Ye Z B,Liu X J,Xiao Y,et al.Measuring methods for physiochemical parameters of HPAM on reservoir cores[J].Journal of Southwest Petroleum University(Science&Technology Edition),2001,23(6):63-66.
[13]马庆霞,张忠智,苗建生,等.淀粉-碘化镉法测定部分水解聚丙烯酰胺浓度的影响因素分析[J].化学与生物工程,2010,27(6):80-82.Ma Q X,Zhang Z Z,Miao J S,et al. Analysis of the effects on determination of concentration of partially hydrolyzed polyacrylamide by strach-cadmium iodide method[J].Chemistry&Bioengineering,2010,27(6):80-82.
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