文献类型：期刊文献

中文题名：非常规储集层低碳烃无水压裂液

英文题名：Waterless fracturing fluid with low carbon hydrocarbon as base fluid for unconventional reservoirs

作者：侯向前[1];卢拥军[2];方波[1];邱晓惠[2];崔伟香[2]

机构：[1]华东理工大学化学工程研究所;[2]中国石油勘探开发研究院廊坊分院

年份：2013

卷号：40

期号：5

起止页码：601

中文期刊名：石油勘探与开发

外文期刊名：Petroleum Exploration and Development

收录：CSTPCD;;EI(收录号：20134316894010);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000328910400014)】；北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：Supported by National Science and Technology Major Project (2011ZX05013-003); PetroChina Science and Technology Major Project (2011B-1202).

语种：中文

中文关键词：非常规储集层;压裂液;低碳烃;交联剂;络合剂

外文关键词：unconventional reservoirs; fracturing fluid; low carbon hydrocarbon; cross-linking agent; complexing agent

摘要：针对常规压裂液不利于非常规储集层的压裂增产且常规油基压裂液交联速率慢的问题，制备了可与二烷基磷酸酯快速交联且使形成的压裂液体系具备良好性能的络合铁交联剂，得到了适用于非常规储集层的低碳烃无水压裂液体系。对影响交联剂性能的主要因素进行了分析和优选，基于优选结果制备了络合铁交联剂并评价了其性能。结果表明：交联促进剂含量为5％、乙二醇含量为8％～10％、络合剂为k且其含量为10％时，可制备出性能优良的络合铁交联剂；制备的络合铁交联剂优于目前国内外通常使用的硫酸铁、硫酸铝交联剂。分析使用不同基液时的交联性能发现：随着低碳烃碳链的增长，交联速率变慢。利用络合铁交联剂、二烷基磷酸酯胶凝剂和低碳烃基液得到的以LPG压裂液为代表的一系列低碳烃无水压裂液体系适用于非常规储集层且交联性能良好。
As the conventional fracturing fluids are not good for stimulation of unconventional reservoirs and the conventional oil-based fracturing fluids crosslink slowly, a ferric-complex cross-linking agent that cross-links fast with dialkyl phosphate ester was prepared and the fracturing fluid systems for the unconventional reservoirs were obtained. The main influencing factors on the properties of the cross-linking agent were analyzed and optimized, and then the ferric-complex cross-linking agent was prepared based on the optimizing results and its performance was evaluated. The optimizing and evaluating results show that： The ferric-complex cross-linking agent with excellent performance can be obtained in the condition that the content of cross-linking promoting agent is 5%, the content of ethylene glycol is between 8% and 10%, and the complexing agent is L5 with content of 10%. The ferric-complex cross-linking agent has better performance than ferric sulfate and aluminium sulfate. It is found that the crosslinking slows down with the growth of carbon chain when using different base fluids. The fracturing fluid systems with low carbon hydrocarbon （such as LPG） as base fluid, dialkyl phosphate ester as gelling agent and ferric complex as cross-linking agent are developed, and all of them have excellent crosslinking performance and are suitable for unconventional reservoirs.