新场气田沙溪庙气藏随机建模  

STOCHASTIC MODELING OF SHAXIMIAO GAS RESERVOIR IN XINCHANG FIELD

作　　者：杨诚[1] 高志平[2] 游文秀[2] 吴铬[3] 

机构地区：[1]成都理工大学能源学院 [2]四川石油管理局地质调查处 [3]中国石化西南分公司研究院

出　　处：《天然气工业》2005年第2期44-45,i027,共3页Natural Gas Industry

摘　　要：在油气田勘探评价和开发阶段,储层研究以建立定量的三维储层地质模型为目标,这是油气勘探开发深入发展的要求,也是储层研究向更高阶段发展的体现。油气藏描述的最终结果是油气藏地质模型,其核心是储层的地质模型,广义的储层模型包括构造模型、储层属性分布模型及流体分布模型,故应用地质、地震、测井、试井等资料建立广义的储层模型的过程实际上就是油气藏描述。在川西新场气田沙溪庙气藏的储层随机建模中,对非连续的类型变量(岩性)和连续的随机变量(储层参数),分别采用了序贯指示模拟方法和序贯高斯模拟方法。首先用序贯指示模拟方法求得砂体的空间展布,然后将泥岩范围屏蔽掉,只在砂岩范围内采用序贯高斯模拟方法对孔、渗、饱等参数进行模拟。应用 Jason软件中的随机建模工具,建立了新场气田沙溪庙气藏储层定量的三维储层参数模型,实现了油气勘探开发深入发展的要求,也体现了储层研究向更高阶段的发展。In the exploration evaluation and development stages of oil and gas field, it is the target to set up a 3-D reservoir geological model in reservoir study, which is not only the demand for expanding deepgoingly oil and gas exploration and development but also the embodiment of expanding reservoir study to a higher stage. The final result of reservoir description is oil and gas reservoir geological model, its core being reservoir geological model. A broad sense reservoir model can be divided into structural model, reservoir attributive distribution model and fluid distribution model, so that the course of setting up the broad sense reservoir model by applying the data on geology, log, well test and so on is oil and gas reservoir description in practice. The sequential indication simulation and sequential Gauss simulation were used for the non-continuous type varible (lithology) and continuous stochastic varible (reservoir parameter) in the stochastic modeling of Shaximiao gas reservoir in Xinchang field respectively. First, the spactial distribution of sand body was determined by the sequential indication simulation, then, on the basis of shielding out the shale area, the porosity, permeability and saturation only in the sandstore area were simulated by the sequential. Gauss method. A3-D reservoir parameter model of the gas reservoir was established by applying the stochastic modeling technique in Jason software, thus meeting the needs of expanding deepgoingly oil and gas exploration and development and embodying the expansion of reservoir study to a higher stage.

关 键 词：新场气田 气藏 储层模型 随机建模 序贯指示模拟 试井 油气勘探开发 储层参数 空间展布 储层地质 

分 类 号：P618.13[天文地球—矿床学]