高矿化度盐水修井液对储层损害实验研究  

Experimental Study on Reservoir Damage by High Mineralization Drilling Fluids

作　　者：杨琥林 唐洪明[1] 邓聪 刘贤 Yang Huin;Tang Hongming;Deng Cong;Liu Xian(School of Earth Sciences and Technology,Southwest Petroleum University,Chengdu 610500)

机构地区：[1]西南石油大学地球科学与技术学院,四川成都610500

出　　处：《石化技术》2024年第7期116-118,共3页Petrochemical Industry Technology

摘　　要：M油田位于伊拉克巴格达地区东部,石油资源储量较为丰富。研究区目的层Hartha储层压力系数为1.17左右,地层水矿化度较高,修井液目前采用一套高矿化度盐水工作液体系,为评价高矿化度盐水修井液对储层造成的损害情况,结合油田生产实际,通过修井液与地层水配伍评价实验和修井液与储层适应性评价实验,研究了高矿化度盐水修井液在修井时会对储层造成的损害情况。结果表明,修井液与地层水配伍,对储层的损害程度小于20%,损害程度较弱。To evaluate the damage caused by high mineralization drillingfluids to the reservoir,combined with the actual production of oilfields,through the compatibility evaluation experiment of drillingfluids and formation water and the adaptability evaluation experiment of drillingfluids and reservoirs,the impact of high mineralization drillingfluids on the reservoir during drilling was studied.The results show that low-temperature drillingfluids entering the reservoir will scale with formation water,forming scale in the near-well zone of oil and water wells,wellbore,or production equipment,thereby hinderingfluidflow and reducing production efficiency.

关 键 词：高矿化度修井液 结垢 储层损害 

分 类 号：TE258[石油与天然气工程—油气井工程]