第43卷第4期
石油与天然气化工
CHEMICALENGINEERING OF OIL & GAS
交联酸加砂压裂技术的研究和应用车明光12王永辉12袁学芳3彭建新3朱绕云3马滨林
(1.中国石油勘探开发研究院廊坊分院2.中国石油油气藏改造重点实验室）
(3.中石油塔里木油田分公司4.中石化江汉石油工程有限公司巴州塔里木测试分公司）
摘要塔里木碳酸盐岩储层非均质性强，裂缝和孔洞关系复杂，在裂缝和孔洞不发育的低品位储层进行酸压效果差。在分析酸压和压裂特点的基础上，开展了交联酸携砂压裂技术研究和现
413
场试验。该技术是携砂液使用交联酸，形成带有酸液刻蚀和支撑剂支撑的复合人工裂缝，扩大储层和人工裂缝的接触面积。交联酸耐温流变性和携砂性能好，酸岩反应过程中能保持较高的黏度和携砂能力。在酸岩反应速度和导流实验研究的基础上，提出在携砂阶段使用不同浓度酸液的工艺方法，在缝端和缝口分别发挥酸液刻蚀和压裂支撑的优势，保持人工裂缝的高导流值。交联酸压裂技术在塔里木油田现场应用8并次，施工成功率100%，为塔里木油田碳酸盐岩储层高效开发提供了新的技术路径。
关键词碳酸盐岩交联酸酸携砂压裂导流能力酸压
中图分类号：TE357.2文献标志码：A
D0I：10.3969/j.issn.1007-3426.2014.04.015
Research and application of crosslinked acid-adding proppant fracturing technology Che Mingguang" 2,Wang Yonghui'-2,Yuan Xuefang ,Peng Jianxin',Zhu Raoyun' ,Ma Binlin
(1.Research Institute of Petroleum Exploration and Development-Langfang,Langfang 065007, Hebei, China;2.Key Laboratory of Reseruoir Stimulation,PetroChina,Langfang 065007, Hebei, China3.PetroChina Tarim Oilfield Company,Korla 84l000,Xinjiang,China;
4.Bazhou Branch of Sinopec Jianghan Petroleum Engineering Co.Ltd.,Korla84lOo0,China)
Abstract: The carbonate reservoirs in Tarim Oilfield are generally characterized with strong heterogeneity , complex relation between natural fractures and pore space , and unacceptable acid-fracturing effect in the reservoir with poor fissures and pore . On the basis of analyzing the char-acteristics of acid-fracturing and sand fracturing , the research and field trials of acid-adding prop-pant fracturing is proposed. The slurry of acid-adding proppant fracturing is crosslinked acid , compound artificial fractures with acidizing etch and propping agent are formed , which enlarges the contact area between reservoir and fractures . Because of the good rheological property of heat-resistant and carrier performance , high viscosity and sand laden are kept during treatment . Based on the acid-rock reaction and conductivity experiments , different acid strength of crosslink -ing acid is used to transport proppant in different treating stages with the purpose of high fracture conductivity . Eight wells have been treated by this technique , with a construction success ratio of 100 , as this technology integrates the advantages of acid fracturing and prop fracturing , a new approach to develop lean carbonate reservoir is promising in Tarim Oilfield .
Key words : carbonate, crosslinked acid, acid-adding proppant fracturing , conductivity , acid. fracturing
基金项目：中国石油天然气股份有限公司科技重大专项"碳酸盐岩安全、快速、高效钻完井技术(2010E-2109）。
作者简介：车明光（1980-），男，辽宁沈阳人，工程师，现在中国石油勘探开发研究院廊坊分院压裂酸化技术服务中心主要从事压裂酸化技术研究工作。地址：(065007>河北省廊坊市44号信箱压裂中心。E-mail：chemg69@petrochina.com-cn