高密度无固相低伤害压井液体系的构建及性能研究  

Construction and Performance Research of High Density Solid Free and Low Damage Well Killing Fluid Systems

作　　者：黄知娟 潘丽娟[1,2] 龙武 霍锦华[3] HUANG Zhi-juan;PAN Li-juan;LONG Wu;HUO Jin-hua(Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-Vuggy Reservoirs,CNPC,Urumchi 830011,China;Sinopec Northwest Company of China Petroleum and Chemical Corporation,Urumchi 830011,China;School of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]中国石油化工集团公司碳酸盐岩缝洞型油藏提高采收率重点实验室,新疆乌鲁木齐830011 [2]中国石油化工股份有限公司西北油田分公司,新疆乌鲁木齐830011 [3]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《材料保护》2022年第11期83-89,共7页Materials Protection

基　　金：顺北一区5号断裂带提质提速钻完井技术研究(编号:P20002)资助。

摘　　要：压井作业是油气勘探开发过程中的重要环节之一,高性能压井液对于压井作业成败十分关键。为提高无固相、低伤害压井液体系的密度,以无机盐类加重剂JZJ-1和有机盐类加重剂JZJ-2复合型加重剂为基础,辅以合成降滤失剂PT-1、增溶剂、阻垢剂及除氧剂制备密度为1.60,1.70,1.80 g/cm^(3)的高密度无固相低伤害压井液体系SWJ-1、SWJ-2和SWJ-3。高密度无固相低伤害压井液体系外观澄清透明,体系pH值在10~12之间,具有优异的耐温性能、流变性能、滤失性能及体系相容性,同时,宏观及微观分析显示其具有低腐蚀特性,具备一定的推广应用前景。Well killing is an important work in oil and gas exploration and development, and high-performance well killing fluids are critical to the success of this work. In order to increase the density of solid free and low damage well killing fluid system, environmental friendly high density solid free and low damage well killing fluid systems SWJ-1, SWJ-2 and SWJ-3 with a density of 1.60, 1.70 and 1.80 g/cm^(3) respectively were prepared by means of adding synthesized filtrate reducer PT-1, solvent increasing agent, scale inhibitor and deoxidizer into a compound weighting agent which was comprised of inorganic salt weighting agent JZJ-1 and organic salt weighting agent JZJ-2. The systems had a clear and transparent appearance, a pH value in the range of 10 ~ 12, and excellent temperature resistance, rheological properties, filtration performance and system compatibility. In addition, the macro and micro analyses showed that the systems possessed the characteristic of low corrosion, presenting a certain application prospect.

关 键 词：油气勘探开发 降滤失剂 压井液体系 腐蚀性能 

分 类 号：TQ314.2[化学工程—高聚物工业]