【摘要】 对塔里木盆地Ｔ井地层测试资料的应用研究表明，凝析油在降压条件下极易从地层中析出，析出的部分油被吸附于岩石表面而无法采出，引起产能降低，因此对凝析油藏必须保压开采。压力系统不同的各油层在混合开采中会引起油气从高压层向低压层倒灌，从而降低混合开采的总产能，在这种情况下应分层单列井网开采。对于垂直渗透率接近水平渗透率的油层宜钻水平井来提高产能。井斜角大于４０°的斜井在任何条件下的产能都比直井高。更多还原

【Abstract】 The application of formation test data at Well T in Tarim basin is examined,indicating that condensate gas readily condensed and dropped out in the reservoir when pres-sure was lowered, part of it couldn’t he produced to the surface because it was adsorbed onthe surface of rock,causing a drop in its productivity. Thus,condensate gas reservoir rnust beproduced at stabilized pressure。 When gas and condensate mixtures are produced from indi-vidual layers in different pressure systems,it may cause influx of fluid in the high pressurebed back into the low pressure bed,reducing the overall productivity of gas and condensatemixture. In this case, individual beds should be produced using different well patterns. Forthe oil reservoir with vertical permeability similar to horizontal permeability,it is suitable toimprove its productivity by means of horizontal well technology,Under all circumstances,de-viated well with hole deviation of over 40°has a higher productivity than vertical well.更多还原