双方的协议还规定，初期的勘探期还可以再延续两个阶段，每个阶段各为两年。
The agreement enables this initial exploration period to be extended by two subsequent periods, each of two years.
南堡凹陷火山岩最有利的勘探区带位于北堡构造带的沙3期和沙1-3期，其次为南堡2号构造带东营组。
Nanpu depression volcanic rocks most beneficially reserviors develop in Beipu structural belt of Es3 period and Es1-3stage , secondly for the Nanpu No. 2 structural belt in Ng formation.
油气勘探支出包括钻井勘探支出和非钻井勘探支出。非钻井勘探支出于发生时计入当期损益。
Oil and gas exploration costs include drilling exploration costs and the non-drilling exploration costs. The non-drilling exploration costs are recorded in the income statement when incurred.
这一规律的发现对提高勘探获气率和控制断层气井的无水采气期，具有重要的现实意义。
It is of great importance to increase in gas recovery factor of an exploration well and to control of gas recovery without water in a well in fault.
目前，准噶尔盆地的油气勘探已进入了以寻找非构造油气藏为主的战略转折期。
Junggar basin has now been entered into the strategic turning stage for non-structural oil-gas reservoir prospecting.
综合运用多种地球物理勘探方法，实施了堤防的地球物理勘探，对分析堤防洪水期或地震时的薄弱部位十分有效。
A geophysical investigation was undertaken to establish an integrated geophysical survey method helpful for the assessment of failure vulnerability of earthen levees during flooding or earthquake.
伊敏期是油气的主要成藏期，在此之前定型并受晚期构造微弱改造的构造圈闭是有利的油气勘探目标。
Yimin Age is the main period of reservoir-forming of oil and gas. Structural traps formed before Yimin Age and slightly reformed by late structure are favorable exploration area.
伊敏期是油气的主要成藏期，在此之前定型并受晚期构造微弱改造的构造圈闭是有利的油气勘探目标。
Yimin Age is the main period of reservoir-forming of oil and gas. Structural traps formed before Yimin Age and slightly reformed by late structure are favorable exploration area.
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