这个遮挡带在缺少其他有效圈闭的条件下，是能够形成天然气藏的基本要素之一。
The barrier belt is one of the basic key factors to form gas pools where other effective traps do not exist.
根据邻井对比、储层预测及断层封堵性研究，认为清22北断层及大洼断层都是封堵的，因此圈闭是有效的。
According to offset Wells correlation, reservoir prediction and fault seal study, it was considered that the northern fault and Dawa fault of Qing 22 was sealed, so the prospect is effective.
综合应用窄带子波记录及重构记录的不同分辨率特征，可以有效地识别某些细薄的隐蔽圈闭。
Some very thin subtle traps can be recognized effectively with the help of different resolution character of narrow band wavelet record and reconstructed record.
燕山晚期运动为本区的油气聚集提供了有效的圈闭。
The effective traps for petroleum accumulation were developed mainly in late Yanshan orogeny.
有效输导体系上的有利圈闭均是勘探的有利区带。
Favorable traps associated with effective pathways have definitely better prospects.
应用圈闭加权法计算了塔里木盆地刻度区及满加尔油气系统的资源量，结果表明本方法是一种行之有效的资源评价方法。
It is proved effective by the application in the reference sections and Manjiaer petroleum system of Tarim basin and has played an important role in the oil and gas resource evaluation recently.
储层水相圈闭和水锁损害强，应尽量避免和减少水基工作液侵入，侵入的水基工作液要能及时有效反排。
The protection from water lock should avoid using water-based fluid as can as and the fluid would reverse in time to reduce the invalidation of the water-based fluid ;
通过对泡沫分流调研和理论研究，建立了考虑气体圈闭变化的泡沫分流酸化有效相对渗透率模型；
The function of gas relative permeability in the present of foam account for the effect and the change of trapped-gas is established;
通过对泡沫分流调研和理论研究，建立了考虑气体圈闭变化的泡沫分流酸化有效相对渗透率模型；
The function of gas relative permeability in the present of foam account for the effect and the change of trapped-gas is established;
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