摘要
龙虎泡油田原油密度低,属于低渗透油藏,萨尔图油层、葡萄花油层存在多套油水组合,后经注水开发使油水关系进一步复杂,水淹层解释评价难度较大。根据水驱油实验,总结了岩石热解、热解气相色谱、荧光显微图像在不同产水率条件下的响应特征;尝试在该油田区分原始油水层及水层,并进行水淹层解释与评价;建立了岩石热解、热解气相色谱、荧光显微图像等解释评价方法及不同水洗程度的判别标准。在该油田24口井394层的实际应用情况表明,综合解释符合率83.1%,应用效果较好,为射孔层位拟定和加密区综合调整方案的编制提供了可靠的地质依据。
The crude density in Longhupao Oilfield is low,the reservoir of which belongs to the low permeability reservoir, various sets of oil and water combinations exist in Sartu and Putaohua oil zones.The relationship between oil and water was further complex after water injection development, and the interpretation and evaluation of the wateredout zones is difficult.According to water driving oil test, the authors summarized the corresponding features of rock pyrolysis,pyrolysis hydrocarbon chromatography and fluorescence micro image in different water yielding zones,tried to distinguish original oil and water zones and water zones of the oilfield,conducted the interpretation and evaluation for water flooded zones,and set up the interpretation and evaluation methods of rock pyrolysis,pyrolysis hydrocarbon chromatography and fluorescence micro image and discriminating standards for different water washing degree.The practical application in 394 zones from 24 wells of the oilfield showed that the comprehensive interpretation coincidence rate reached 83.1%,which provided reliable geologic basis for determining the perforation zones and working out the comprehensive adjustment plan for the design of the infilling wells.
出处
《录井工程》
2009年第2期1-6,共6页
Mud Logging Engineering
关键词
龙虎泡油田
井壁取心
岩石热解
热解气相色谱
荧光显微图像
水淹层
评价方法
Longhupao Oilfield
sidewall coring
geochemical chromatographic analysis
fluorescence micro image
water flooded zone
evaluation method
