柴油微乳酸体系的制备及其性能研究

The microemulsified acid system composed by diesel oil, hydrochloric acid and emulsifier was investi- gated in this paper. The stability of microemulsified acid and the phase behavior of the microemulsified system Were studied. The size distribution and the corrosion inhibition performance were also observed. The results showed that the diesel oil microemulsified acid system possessed small size and good stability under different temperature.The tolerance to CaCl2 reached 80 g·L^-1. Compared with the same concentration hydrochloric acid solution, the corrosion inhibition performance of the diesel oil microemulsified acid system was remarkable.     

有机硼交联压裂液在高温深井中的应用

针对胜利油田大北52断块深井高温油藏特点和压裂工艺要求,分析了压裂液选择的依据,筛选出了适合该油藏特征的有机硼交联压裂液体系。重点讨论了压裂液流变试验条件的选择、降阻性能、携砂能力和保护储层技术。室内试验和现场应用表明,该有机硼压裂液具有延迟交联、摩阻低、良好的耐温耐剪切性能、携砂能力强、易破胶、储层伤害小等优点,满足了深井高温压裂工艺的需要。     

乳化压裂液在低渗强水敏地层中的应用研究

阿塞拜疆Kursenge和Karabagli油田属于中温、低压、低孔、低渗油藏,需要采用必要的增产措施以获得较高的单井产量,提高油藏整体动用程度。由于储层属低压、强水敏,不利于水力压裂增产作业,经过伤害因素分析和研究,研制出了低伤害乳化压裂液。该压裂液有助于保护储层,降低伤害,达到改造储层、提高产量的目的。现场应用表明,乳化压裂液施工成功率达100%,压裂后增产有效率达83%,效果明显的达50%以上。     

Discussion on rheology in petroleum and nature gas teservoir stimulation

Petroleum and nature gas not only are important resources,but also are important strategic materials of our country.All methods the enhancing the producing degree of petroleum and natural gas reservoir,increasing single well production and extending the stimulation period of validity are important stratagem for petroleum and natural gas exploitation.Fracturing and acidizing are the main methods for stimulation as well as one of representative examples of rheology theory application in engineering.Based on analysis of low permeability reservoir characteristics,the fracturing and acidizing stimulation principles and main controlling factors were discussed.And the mechanical characteristics,chemical reaction and rheological behavior in the stimulation process were reviewed.Furthermore research trends afterwards including the material and fluid rheology in oil and natural gas production process,the deep rock fracture initiation and extension rheology,and the fracturing and acidizing application rheology were also proposed in this paper.     

灌溉讲科学 改革促管理

广西玉林市化寿水库灌区,经过十几年不断的研究试验,现又总结出一整套适用于当地的节水高产措施——“薄浅湿晒”灌溉制度。特别是在1989年到1991年连续三年大旱中,主库蓄水量少,灌溉用水严重不足,他们采取主库灌关键水(即保插、保孕穗后期和扬花三水),水稻其余生育期需水,则由小塘库、陂坝、降雨提供,严格执行“薄浅湿晒”灌溉制度,再辅以其它农业生产技术措施,结果仍取得了下列好成绩:     

玉林市金党水轮泵站在改革开放中不断前进

金党水轮泵站,是广西玉林市充分利用水力资源、大力发展小水电,经济效益不断提高的小型水利工程。该站始建于1966年,利用武思江上游河段,集雨面积613km~2,建拦河坝1座,安装60型水轮泵8台,建小水电站3台600kW,1972年开始发挥效益,灌溉农田900亩,年发电量     

CO_2泡沫压裂液的流变特性研究

利用大型多功能泡沫回路(MPFL)装置研究了泡沫压裂液的流动行为特征,获得了不同CO_2泡沫质量压裂液的流变参数,并使用RS75控制应力流变仪研究了CO_2泡沫压裂液的粘弹性能,分析了泡沫质量与表观粘度、粘弹性、微观结构、支撑剂沉降速率的关系。研究结果表明,MPFL是开展泡沫压裂液研究的良好专用装置,FL-36起泡剂具有良好稳泡能力,研究的泡沫压裂液具有低密度、低滤失量、流变性能好、携砂能力强、低伤害等特点。     

耐高温阳离子Gemini柴油微乳盐酸体系研究

为获得高温微乳酸并为油气藏深度酸化提供新材料,本文以阳离子Gemini表面活性剂——丙撑基双（十八烷基二甲基氯化铵）（18-3-18）为主表面活性剂,以正丁醇和正辛醇为辅助表面活性剂、柴油为油相、盐酸为酸相,通过复配制备了含Gemini耐温柴油微乳盐酸新体系,并考察了微乳盐酸的相行为、缓速反应及耐氯化钙能力。结果表明,在适当的条件下,阳离子Gemini18-3-18柴油微乳盐酸耐温可达100℃,缓速反应性能良好,耐氯化钙能力可达到120 g/L。并且证明了阳离子Gemini18-3-18与AEO9乳化的柴油微乳盐酸耐温性能良好,可在95℃下保持稳定,有利于丰富耐高温微乳盐酸新体系。     

含Gemini表面活性剂微乳酸的制备及其性能研究

研究了含十六碳链和十四碳链Gemini表面活性剂微乳酸的制备及其性能。通过考察助表面活性剂用量和增溶酸量,得到微乳酸所用乳化剂的最优化配比为Gemini：AEO9：AS1：AS2=7：10．5：5：12．5。研究了微乳酸的相行为,并对微乳酸的稳定性、缓释效果及耐盐能力做了测试,初步考察了碳链长度对微乳酸形成及性能的影响。