水基压裂液体系中交联剂的应用进展

Progress on Cross-linker in Hydro-fracturing Fluid System

何青 姚昌宇 袁胥 付娜 赵静

HE Qing YAO Changyu YUAN Xu FU Na ZHAO Jing

本文简述了水基压裂液体系中常用交联剂（无机/有机钛、锆、硼等）的化学结构和性能特点；重点介绍了有机硼交联剂在羟丙基瓜胶水基压裂液体系的交联机理、技术指标和现场应用情况；从交联剂的结构、有机配体的分子组成、交联性能、交联剂制备路线等方面阐释了交联性能是由配位中心的性质、基液pH、配体的配位能力、稠化剂的种类和用量等因素共同决定的。同时回顾了交联剂理论研究进展和现场应用现状，并对水基压裂液交联剂在极端条件、性能指标、复合体系及经济性等应用方向进行了展望。图4 参31

The chemical structure and performance characteristics of cross-linker agents（inorganic/organic titanium，zirconium， boron，etc.） commonly used in hydro-fracturing fluid system was described，and the cross-linking mechanisms，technical indicators and field applications of organic boron cross-linker in hydro-fracturing fluid system with hydroxypropyl guar gum as the thickener agent was highlighted. Additionally，as for the aspect of the molecular structures，organic-ligand compositions， cross-linking properties，synthetic routes of different cross-linkers，it was explained that the cross-linking properties was codetermined by coordination center，pH of fracture fluid，ligands，thickener type and concentration. In addition，cross-linkers progress on both theory and field applications was mentioned and the applications status in extreme conditions，performance indicators，composite systems and economic in hydro-fracturing fluid was prospected.

10.19346./j.cnki.1000-4092.2017.01.037