论文部分内容阅读
油气勘探程序要适应中国陆相盆地构造沉积,生油和油气藏形成的复杂地质特征。本文把油气勘探程序划分为三个阶段。 1.区域勘探阶段,是对盆地的地质情况进行整体调查,了解区域基本油气地质条件,圈定有利的生油凹陷,评选油气聚集的有利地带,预测可能存在的油气圈闭类型,进行早期远景地质储量或资源(Resources)的预测。 2.圈闭预探阶段,是在选定的有利圈闭上进行钻探工作,以探明构造的含油气性质;查明油气层位及工业价值;计算出可能储量(Probablereserve)为详探部署提供依据。 3.油田详探阶段,是探明含油气边界,圈定油气田面积;详细研究油气层和油气藏的特征;确定探明储量(Proved reserve),为编制油气田开发方案提供依据。复杂小断块油田必须采取详探,开发相结合的做法。采取勘探、开发和生产滚动方案,逐步搞清地下情况。不断扩大开发面积,以缩短勘探历程尽快的形成生产能力。勘探管理要按地下,地面特点划分探区,实行项目管理,实行投资包干,勘探最终成果是各级储量增长的数量,而探明每吨储量的成本,则是衡量勘探经济效益的最终指标。
The hydrocarbon exploration program should be adapted to the complex geological features of tectonic deposits, oil generation and reservoir formation in the continental basins of China. This paper divides oil and gas exploration process into three stages. 1. The regional exploration stage is to conduct an overall survey of the geological conditions in the basin to understand the basic geological conditions of the oil and gas in the region, delineate favorable oil-producing sags, evaluate favorable areas for oil and gas accumulation, predict possible hydrocarbon trap types, conduct early vista geology Reserves or resources forecasts. 2. Trap pre-exploration phase, where drilling is carried out on the selected favorable traps to ascertain the nature of the petroleum-bearing structures; to identify the hydrocarbon horizon and industrial value; and to calculate the probable reserves (Probable reserves) Provide evidence. 3. The detailed exploration stage of oilfield is to ascertain the boundary of oil and gas and delineate the area of oil and gas field; to study the characteristics of oil and gas reservoirs and reservoirs in detail; to determine the Proved reserve for the preparation of oil and gas field development plan. Complex small fault block oil field exploration must be taken to develop a combination of practices. Take the exploration, development and production of rolling programs to gradually understand the underground conditions. Continue to expand the development area to shorten the exploration process as soon as possible to form the production capacity. Exploration management should be based on underground and terrain characteristics of the exploration area, the implementation of project management, the implementation of investment packages, the final result of exploration is the amount of reserves at all levels, and proven reserves per ton cost, it is the ultimate measure of the economic efficiency of exploration indicators.