利用测井信息研究开发区块的地层压力

Using logging data to study formation pressure in development zone

开发区块地层异常压力的形成,异于原始异常地层压力产生的机理,准确地判断开发区块地层压力的成因,可以为提高注水开发油田新钻生产井的产层状态分析、制定注采方案提供重要依据。本文通过对开发区块地层压力与测井信息的关系分析,结合地层对比技术研究开发区块地层压力的成因,在大港油田港西开发区见到了良好的效果。同时说明注采关系的复杂性必然引起开发区块地层压力的复杂变化,只有利用多信息进行综合分析,才能发现开发区块地层压力异常的根本成因。

Formation of anomalous strata pressure in development blocks is different from the mechanism producing original anomalous strata pressure. Therefore, accurately judging the genesis of strata pressure in development blocks can provide important basis for analysis of oil-producing pay situation of new-drilled production wells, which aimed at improving waterflooding development of oilfield, and working out water flood recovery project. The paper, through analysis of relationship between strata pressure in development blocks and logging data in combination with the analysis of genesis of strata pressure in development blocks by strata correlation technique, saw a good effect in Gangxi development block of Dagang oilfield. At the same time, it illustrated the complexity of relationship between water flood and recovery inevitably causes the complex change in strata pressure in development blocks. Only using comprehensive analysis by multi-information, can we discover the basic genesis of strata pressure in development blocks.