茫汉断陷的构造特征复杂,构造格局及构造演化过程不清,制约了该区石油地质条件研究的深入。在该区地震资料解释的基础上,对茫汉断陷的主干断裂及构造格局进行了分析,利用平衡剖面技术对茫汉断陷的构造演化过程进行研究,结果表明茫汉断陷内断裂发育,其中茫汉断裂和德胜断裂是控盆断裂,乌拉斯台西断裂包格特断裂控带断裂;茫汉断陷具有"两洼夹一隆"的构造格局,北部次凹具有西断东剥的箕状断陷构造特征,而南部次凹具有东断西超的半地堑构造特征;茫汉断陷的构造演化过程经历了裂陷期(义县组沉积时期)、断陷期(九佛堂组-沙海组沉积时期)、断坳过渡期(阜新组沉积时期)和坳陷期(泉头组沉积时期-至今)4个演化期次。

Rotor swing polyphase pump is volume type pump,rotor and stator are not contacted mutual when working,maintain certain gap.There is a special lubricating system for bearing and mechanical seals.It has advantages such as higher efficiency and inhaling ability,longer running time with no failure,without medium leakage,lower noise,convenient management,etc.It can be used to transfer oil,gas and water together in oil fields.It can decrease the back pressure of oil well,improve the output,and reduce invest costs.

现在油井上使用的丝堵设计简单、操作方便、易于拆卸,但不具备防盗卸功能.根据机械原理和材料力学的知识进行了重新设计,在不断完善和提高的基础上实现了丝堵的防盗卸功能.