CAJ | 학술논문

针对江汉油田谢凤桥段油藏高温、高盐地层的特点，以羧甲基纤维素钠（CMC）和丙烯酰胺（AM）为主剂， N，N′-亚甲基双丙烯酰胺（BIS）为交联剂，（NH4）2 S2 O8-Na2 SO3为引发剂，通过自由基接枝共聚制得了一种聚合物弱凝胶深部调剖剂。采用 IR 表征其化学结构并通过黏度测试评价其耐温、耐盐性能。结果表明，该剂是一种交联网状结构的弱凝胶，具有一定的强度和流动性，其最佳的成胶条件为：CMC 为2.50 g，CMC： AM 为1：4，交联剂 BIS占主剂总质量的0.05％，引发剂占主剂总质量的1.3％，反应时间为8 h，反应温度为40℃；该弱凝胶深部调剖剂适用的地层温度为80~120℃，适用的粗盐浓度为0~25％，完全满足高温高矿化度油藏深部调剖的要求。
침대강한유전사봉교단유장고온、고염지층적특점，이최갑기섬유소납（CMC）화병희선알（AM）위주제， N，N′-아갑기쌍병희선알（BIS）위교련제，（NH4）2 S2 O8-Na2 SO3위인발제，통과자유기접지공취제득료일충취합물약응효심부조부제。채용 IR 표정기화학결구병통과점도측시평개기내온、내염성능。결과표명，해제시일충교련망상결구적약응효，구유일정적강도화류동성，기최가적성효조건위：CMC 위2.50 g，CMC： AM 위1：4，교련제 BIS점주제총질량적0.05％，인발제점주제총질량적1.3％，반응시간위8 h，반응온도위40℃；해약응효심부조부제괄용적지층온도위80~120℃，괄용적조염농도위0~25％，완전만족고온고광화도유장심부조부적요구。
A kind of deep profile controlling agent is researched on Xie Fengqiao reservoir in Jianghan oil-field characterized with high temperature and high salt stratum. The preparation of CMC / AM/ BIS weak gel is based on sodium carboxymethyl cellulose(CMC)and acrylamide(AM),using N,N′-methylene-bis-acrylamide( BIS)as crosslinking agent and( NH4 )2 S2 O8-Na2 SO3 as initiator. The properties are characterized by IR,temperature and salt testing. The results indicate that crosslinked weak gel with net-work structure features certain strength and mobility,the optimum condition is CMC dosage:2. 50 g,CMC: AM = 1: 4,the amount of cross linker(BIS)and initiator accounted for the amount of main agents is 0. 05% ,1. 3% respectively;reaction time is 8 h,reaction temperature is 40 ℃;the applicable ambient tem-perature of this system is 80 ~ 120 ℃;applicable coarse salt concentrations is ranging from 0 ~ 25% ;it can meet the requirements of deep profile control in high temperature and high salinity reservoir.