发明名称 Preparation of boron crosslinking agents for fracturing fluids
摘要 Methods for making polyaminoboric acid compounds are provided. The polyaminoboric acid compounds are made by reacting a polyamine with boric acid in the presence of a solvent to produce polyaminoboric acid compounds with more than one boron-nitrogen bond. The polyaminoboric acid compounds are useful as crosslinking agents for fracturing fluids.
申请公布号 US8921597(B2) 申请公布日期 2014.12.30
申请号 US201113153805 申请日期 2011.06.06
申请人 Baker Hughes Incorporated 发明人 Sun Hong;Qu Qi
分类号 C07F5/02 主分类号 C07F5/02
代理机构 Jones & Smith, LLP 代理人 Jones John Wilson;Jones & Smith, LLP
主权项 1. A method of making a polyaminoboric acid compound comprising contacting boric acid with a polyamine in the presence of a solvent, wherein the polyaminoboric acid compound is: or combinations thereofwherein X is —NH; Y is a straight chain of (—CH2—), a straight chain with pendant(s), a straight chain with branching, aromatic ring(s) directly connected, aromatic ring(s) indirectly connected, fused aromatic rings, heterocyclic ring(s) directly connected, heterocyclic ring(s) indirectly connected, fused heterocyclic rings, aliphatic ring(s) directly connected, aliphatic ring(s) indirectly connected, fused aliphatic rings, or combinations thereof; Z1 is —CH, nitrogen, aromatic ring(s), aliphatic ring(s), heterocyclic ring(s) or a combination thereof; and Z2 is silicon, oxygen, —NH, alkylene group, alkenyl group, alkynyl group, aromatic ring(s), aliphatic ring(s) or heterocyclic ring(s); and x, y and z are 1, 2 or 3.
地址 Houston TX US