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| 1 | 深部液流转向剂与油藏适应性研究——以大庆喇嘛甸油田为例显示文摘针对大庆喇嘛甸油田油层厚度大、相带组合复杂多样、层内非均质性严重等特点,利用室内岩心驱替实验方法,开展了深部液流转向剂调驱增油效果影响因素及其与油藏适应性研究。结果表明,转向剂用量、强度以及渗透率变异系数对油藏调驱增油效果均有影响:转向剂用量越大,调驱增油效果越好;采收率增幅随转向剂强度增大呈现先增大后减小的变化趋势;渗透率变异系数越大,调驱增油效果越好。岩心流动实验和仪器检测分析研究表明,只有当转向剂的分子线团尺寸及其拟流动岩心孔道半径中值组成的点落在配伍性区域内时,转向剂才可以在孔隙内流动。由此认为,对于非均质油藏,在设计转向剂强度和段塞尺寸时,必须兼顾高、中、低渗透层的特点以及转向剂分子线团尺寸与储集层岩石孔隙半径中值间的匹配关系,以确保转向剂对中、低渗透层的伤害最小。 | 卢祥国 王树霞 王荣健 王洪关 张松 | 2011 | 石油勘探与开发2011，38，5： | 52 |
| 2 | Study of action mechanisms and properties of Cr^(3+) cross-linked polymer solution with high salinity显示文摘Performance characteristics of partially hydrolyzed polyacrylamide (HPAM) and cross-linked polymer (CLP, Cr 3+ as the cross linker) solutions have been investigated. A Brookfield viscometer, rheometer, dynamic light scattering system, and core flow device have been used to measure the viscosity, viscoelasticity, polymer coil dimensions, molecular configuration, flow characteristics, and profile modification. The results show that, under conditions of high salinity and low HPAM and Cr 3+ concentrations, cross-linking mainly occurred between different chains of the same HPAM molecule in the presence of Cr 3+ , and a cross-linked polymer (CLP) system with a local network structure was formed. Compared with an HPAM solution of the same concentration, the apparent viscosity of the CLP solution increased slightly or remained almost unchanged, but its viscoelasticity (namely storage modulus, loss modulus, and first normal stress difference) increased, and the resistance coefficient and residual resistance coefficient increased significantly. This indicates that the CLP solution exhibits a strong capability to divert the sequentially injected polymer flood from high-permeability zones to low-permeability zones in a reservoir. Under the same HPAM concentration conditions, the dimensions of polymer coils in the CLP solution increased slightly compared with the dimensions of polymer coils in HPAM solution, which were smaller than the rock pores, indicating that the cross-linked polymer solution was well adapted to reservoir rocks. Core flood experiments show that at the same cost of reagent, the oil recovery by CLP injection (HPAM-1, Cr 3+ as the cross linker) is 3.1% to 5.2% higher than that by HPAM- 2 injection. | Lu Xiangguo Liu Jinxiang Wang Rongjian Liu Yigang Zhang Song | 2012 | Petroleum Science2012，9，1： | 8 |
| 3 | 沥青调剖颗粒与大庆喇嘛甸油层配伍关系显示文摘大庆喇嘛甸油田经过长期注水冲刷进入高含水期,并且存在注入水无效循环、水窜现象严重等问题,须采取调剖封堵增产措施。沥青颗粒主要是通过封堵高渗透水窜通道和扩大波及体积提高采收率,但现场应用过程中存在注入压力过高的问题,须通过室内试验研究沥青颗粒与地层配伍关系。根据相似准则和近井地带分流效应,研制带测压点的特殊胶结岩心,通过综合分析注入沥青颗粒及后续水驱过程中的阻力系数、残余阻力系数及封堵率,给出沥青颗粒粒径与油层的配伍关系,确定浓度对注入性的影响。结果表明:渗透率为2μm2的地层与粒径为(0.1~0.3)mm沥青颗粒配伍适宜,粒径过大或过小都会限制扩大波及体积作用;沥青颗粒浓度会限制其运移能力,当浓度增加到5 g/L时沥青颗粒会在地层局部大量堆积,高浓度沥青颗粒段塞注入过程可采用与水交替注入方式。 | 李宜强 向刚 王彦升 李彦阅 李俊键 | 2015 | 中国石油大学学报(自然科学版)2015，39，4： | 6 |
| 4 | 驱油用泡沫体系的稳定性显示文摘基于α-烯烃磺酸钠发泡体系,选择了具有增粘作用的稳泡剂——平均分子量(molecular weight,MW)为300万,1 000万和200万~1 400万的聚丙烯酰胺和羧甲基纤维素钠(carboxymethyl cellulose,CMC),以及具强化液膜质量作用的稳泡剂——辛醇和十二醇.通过加入不同浓度不同类型的稳泡剂,研究了稳泡剂对泡沫体系的发泡性能、稳定性及油水界面张力的影响.结果表明:聚丙烯酰胺降低了泡沫体系的发泡能力和稳定性,同时使得油水界面张力有所上升;CMC在适当浓度下可增强泡沫的稳定性;醇类对泡沫体系的稳定性造成了严重影响. | 祝仰文 相明辉 宋新旺 梁欣 | 2014 | 上海大学学报(自然科学版)2014，20，3： | 4 |
| 5 | Synthesis and Solution Properties of Comb-like Acrylamide Copolymers显示文摘A comb-like acrylamide copolymer (HCJ-1) was synthesized by using aqueous free radical polymerization of acrylamide (AM) as main monomer and ether carboxylate as functional monomer. The copolymers were characterized with FT-IR and SEM. The SEM results show that the molecular structure of copolymer is extended in salt water. It is proved that the copolymer shows good salt resistance.The solution properties of HCJ-1 were studied and compared with those of partially hydrolyzed polyacrylamide (HPAM). The experimental results show that the obtained HCJ-1, compared with HPAM, exhibits a dramatic enhancement in the salt-resistant properties. The apparent viscosity retention rate of 1.5 g/L HCJ-1 aqueous solution and salt solution after 180 days at 60 ℃ are 70.6% and 64.5%, respectively, exhibiting good thermal stability. In addition, HCJ-1 solution also displays the excellent shearing resistance. In a word, the experimental results show the HCJ-1 is a promising profiling agent for high salinity reservoir. | 罗霄 BAI Lei ZA Kejian LI Dongwen HAN Wei PU Xiaolin | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，6： | 1 |
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