摘要
针对烷基糖苷钻井液在现场应用中出现的问题,中原油田钻井液技术公司首次将阳离子烷基糖苷(CAPG)引入钻井液。CAPG钻井液的优化配方为:375 mL自来水+6%CAPG+0.6%降滤失剂LV-CMC+0.6%流型调节剂黄原胶+0.4%增黏剂HV-CMC+3%封堵剂WLP+0.4%NaOH+0.2%Na_2CO_3+24%NaCl+0.4%抗氧化剂NaHSO_3。CAPG钻井液的相关性能测试结果表明,该钻井液体系在抑制性、抗温性、润滑性、滤液表面活性、抗污染性、降滤失性及储层保护等方面性能优良。岩屑一次回收率99.15%,相对回收率99.45%,相对抑制率91.4%,抗温达160℃,极压润滑系数0.097,滤液表面张力19.52mN/m,滤失量4.0mL,抗NaCl 36%(质量分数,后同),抗CaCl25%,抗膨润土10%,抗钻屑10%,抗水侵20%,抗原油10%,岩心的静态渗透率恢复值大于93%,动态渗透率恢复值大于92%。其各方面性能均优于烷基糖苷钻井液,在油气勘探开发中的应用前景良好。
In view of the problems which were found in field application of alkyl glucoside drilling fluid, the cationic alkyl glucoside （CAPG） was firstly introduced into drilling fluid system by drilling fluid technology company of Zhongyuan oilfield. The optimum formula of CAPG drilling fluid was obtained as follows： 375 mL water, 6% CAPG, 0.6% filtrate reducer LV-CMC, 0.6% flow regulator xanthan gum, 0.4% thickening agent HV-CMC, 3% plugging agent WLP, 0.4% NaOH, 0.2% Na2CO3, 24% NaCI and 0.4% antioxidant NaI-ISO3. The performance test results showed that CAPG drilling fluid had excellent performances including inhibition, temperature resistance, lubricity, filtrate surfactivity, pollution resistance and reservoir protection, such as 99.15% cuttings first recovery, 99.45% cuttings relative recovery, 91.4% relative inhibition rate, 160℃ resistance temperature, 0.097 extreme pressure lubrication coefficient, 19.52 mN/m surface tension of filtration solution, 4.0 mL filtrate volume. Excellent pollution resistance was revealed, according to the mass fraction, the antipollution results were showed as follows： 36% NaCI, 5% CaCI2, 10% bentonite, 10% drilling cuttings, 20% water, 10% crude oil. The static core permeability recovery value was greater than 93%, and the dynamic permeability recovery value was greater than 92%. All the performance of CAPG drilling fluid was superior to that of alkyl glucoside drilling fluid. The application prospect of cationic alkyl glueoside was well in exploration and development of oil and gas.
出处
《油田化学》
CAS
CSCD
北大核心
2013年第4期477-481,共5页
Oilfield Chemistry
基金
中国石化先导项目"水平井烷基糖苷无土相钻井液技术"(项目编号SG12035)
中国博士后科学基金特别资助"钻井液用两性甲基葡萄糖苷的合成及其作用机理"(项目编号2012T50641)
中国博士后科学基金面上资助"钻井液用糖苷基季铵盐的合成及其抑制机理研究"(项目编号2011M501194)
中原石油勘探局科技攻关项目"钻井液用阳离子烷基糖苷的研究"(项目编号2011231)
关键词
阳离子
烷基糖苷
钻井液
中原油田
cationic
alkyl glucoside
drilling fluid
Zhongyuan oil fields
