摘要
根据微泡沫理论模型 ,在室内合成出了微泡沫发泡剂MF 1。对该发泡剂的性能进行了评价。结果表明 ,微泡沫发泡剂MF 1的抗温能力大于 15 0℃ ,抗盐能力达到了 10 % ,抗油能力达到了 15 % ,抗钙能力达到了 5g/L。在此基础上研制出了性能良好的微泡沫钻井液配方 ,对其结构进行了显微分析。结果表明 ,微泡沫气泡群体是以单个悬浮和部分相互连接的方式存在于体系中 ,微气泡之间在平面上为点接触 ,气泡呈大小不等的圆球体。该钻井液密度在 0 6～ 0 95g/cm3 范围内可调 ,体系稳定性良好。在锦 45 15 2 6C井的现场应用证实 ,在整个钻进过程中该钻井液性能稳定 ,没有出现气液分层现象 ,泡沫细小 ,泥浆泵上水正常 ,微泡沫钻井液的各项性能均能满足现场使用的技术要求。
Based on the theoretical model of micro*$-foam microstructure and performance,a micro*$-foam agent MF*.1 was synthesized in laboratory.The performance evaluation shows that the temperature resistance capability of MF*.1 is over 150℃,and the salt resistance capability is over 10 percent,and the calcium resistance capability is over 5g/L.Based on the micro*$-foam agent MF*.1,the micro*$-foam drilling fluid system with a good performance was developed.The microstructure of the micro*$-foam drilling fluid was analyzed by microscopy.The result shows that the bubbles of micro*$-foam drilling fluid are suspended in single or partially connected in dot in the plane.The shape of the bubble is round,and the volume is unequal.The density of the drilling fluid changes from 0.6 g/cm 3 to 0.95 g/cm 3.The application of the micro*$-foam drilling fluid in Jin*$45*.15*.26C Well showed that the performance of this kind of drilling fluid was stable,and the gas-liquid phase was not layered in the whole drilling process.The foam of the drilling fluid was fine,and the operation of mud pump was normal.The performances of the micro*$-foam drilling fluid can meet the demand of the actual drilling process.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2004年第6期92-95,共4页
Acta Petrolei Sinica
关键词
低压油气藏
欠平衡钻井
微泡沫发泡剂
微泡沫钻井液
稳定性
low-pressure reservoir
under balanced drilling
micro*$-foam agent
micro*$-foam drilling fluid
stability
