第34卷第4期 2017年7月
钻井液与
完井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.04.023
瓜胶压裂返排液重复利用的室内研究
Vol.34 No. 4 July2017
马红，黄达全，李广环，张爱顺，龙涛，曹孜英，王运动，苏君
（中国石油集团动海钻探工程有限公司混浆技术服务分公司，天津300280）
马红，黄达全
MAHong fluidJ.Drlim 摘要
中图分类
HUANG
标识码
数效
文销号
室内研究[].钻井液与完井液，2017，34（4）：122-126
n recycling of flowback fluid of guar gun fracturing
123-126
利房
1001-5620（2017）04-0122-05
Laboratory Study on Recycling of Flowback Fluid of Guar GunFracturingFluid
MA Hong, HUANG Daquan, LI Guanghuan, ZHANG Aishun, LONG Tao, CAO Ziying, WANG Yundong, SU Jun(Drilling Fluid Technology Services of CNPC Bohai Drilling Engineering Company Limited, Dagang, Tianjin 300280)
Abstract Guar gum fracturing flowback fluid has become one of the main pollution sources to oilfield water. If the flowback fluid is used to re-mix fracturing fluid after treatment, it not only protects the environment from being polluted, but also saves water resource and reduces operation cost, To simplify the treatment process and to increase the volume of treatment, a method for the removal of boron and metal ions was introduced to realize the recyeling of the fracturing flowback fluid. Sample of fracturing flowback fluid from the well Guanxi-5 was analyzed for the effect of inorganic ions, solid particles and residual boron on the recycling of the flowback fluid. The study showed that 11 inorganic ions in the flowback fluid affect its recycling to varying degrees. The concentration thresholds of these ions affecting the recycling process were summarized. Flowback fluid after gel breaking, flocculation, boron and metal ion removal, has its oil component removed by 91.71%, turbidity reduced by 94.6%, colourity reduced by 95.8%, and Cat, Mg*t, Fe*t and B reduced to 36.07 mg/L, 19.44 mg/L, 44.3 mg/L and 3.35 mg/L, respectively. Boron remover and metal ions removers were added to control the concentrations of boron and metal ions within the acceptable ranges based on their concentrations in the flowback fluid. This experimental method, because of its advantages such as simplicity in operation, large volume of treatment and low cost, is easy to apply in field operation. A guar gum fracturing fluid made from a treated flowback fluid, has its viscosity remained above 1o0 mPa + s after shearing for 1 h under 100 °C, satisfying the requirement of *General technical specifications of fracturing fluids," and realizing the recycling of fracturing flowback fluids
Key words Fracturing flowback fluid, lonic effect; Ion removal; Recycling
第一作者简介：马红，1984年生，业于南开大学物理化学专业并获硕士学位，现在从事压聚返排液、油基钻屑、钻
并液及油田度液皮造的无害化处理技术研究工作。电话（022）25922500/15222158955；E-mail：mah16888@sina.com。万方数据