通道压裂支撑剂改性研究  

Study on Modification of Fracturing Proppant

作　　者：张述贵 杨森 严明 ZHANG Shugui;YANG Sen;YAN Ming(CNOOC Energy Technology&Services-Oil Production Services Co.,Tianjin 300452,China)

机构地区：[1]中海石油能源发展股份有限公司采油服务分公司,天津300452

出　　处：《天津科技》2023年第3期72-76,共5页Tianjin Science & Technology

摘　　要：针对当下非常规油气资源开发难度大、采收率低、常规水力压裂效果不佳的特点,经过大量实验和生产实践,筛选硅油类改性剂和烷烃类改性剂作为支撑剂的表面改性剂,并通过支撑剂表面覆膜、表面固化等先进技术使支撑剂表面改性,以达到疏水效果。疏水支撑剂在压裂过程中有控水稳油、有效作用时间长、返排率高、导油能力强等优点,在国外已经得到广泛应用,但国内对疏水支撑剂技术的研究相对起步晚,实践应用少。通过室内实验评价方法对筛选出的复配改性剂制备的改性支撑剂进行了评价,结果表明,该改性支撑剂完全满足支撑剂性能评价标准中对密度、抗破碎能力、浊度、酸溶解度的要求,且具有良好的耐温性、渗透性、粉砂吸附性和导流能力。In view of the current characteristics of unconventional oil and gas resources,such as high difficulty in development,low recovery rate and poor effect of conventional hydraulic fracturing,through a lot of experiments and production practices,silicone oil modifiers and alkane modifiers are screened as surface modifiers of proppants,and the surface of proppants is modified by advanced technologies such as surface coating and surface curing of proppants to achieve the hydrophobic effect.Hydrophobic proppant has many advantages in fracturing process,such as water control and oil stabilization,long effective action time,high flowback rate and strong oil conductivity.It has been widely used in foreign countries,but the domestic research on the hydrophobic proppant technology is relatively late,and the practical application is few.The modified proppant prepared by the screened compound modifier was evaluated by the laboratory evaluation method.The results show that the modified proppant can meet the requirements of density,crushing resistance,turbidity and acid solubility in the proppant performance evaluation standards,and the modified proppant has good heat resistance,permeability,silt adsorption and conductivity.

关 键 词：疏水支撑剂 表面改性剂 控水稳油 导流能力 

分 类 号：TE32[石油与天然气工程—油气田开发工程]