大排量电缆地层测试复合流动压降解释模型  

Model of Composite Flow Pressure-drop Interpretation for Wire-line Formation Testing(WFT) with High Displacement

作　　者：徐君[1,2] 关富佳[3] 刘杨[4] 李旭宏[5] 

机构地区：[1]中国地质大学(武汉)资源学院,湖北武汉430074 [2]中石油吐哈油田分公司开发事业部,新疆鄯善838202 [3]湖北省油气钻采重点实验室(长江大学),湖北荆州434023 [4]中石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 [5]中石油新疆油田分公司采油工艺研究院,新疆克拉玛依834000

出　　处：《石油天然气学报》2012年第1期96-99,167,共4页Journal of Oil and Gas Technology

基　　金：教育部博士点基金项目(20104220120002)

摘　　要：利用电缆地层测试预测试压降数据进行渗透率解释,能够快速获得储层参数,为下步正式测试工作提供参考。对于大排量电缆地层测试器,在较薄储层测试时,压力很快传播到储层上下不渗透边界,流体的流动形态也从球形流动过渡到圆柱形流动,而目前还没有针对电缆地层测试的球形流-柱形流复合流动压降解释模型。为了通过电缆地层测试压降数据快速获得可靠渗透率参数,指导进一步的精确测试参数选取。应用渗流力学理论和方法,建立了电缆地层测试球形流-柱形流复合流动压降解释模型,利用该模型,可以提高薄层测试时压降渗透率的解释精度。Formation pressure drop data acquired by WFT were used for permeability interpretation and for rapid obtaining reservoir parameters and providing reference to testing operation.For displacement wire-line formation testers operating in thinner reservoirs,pressure was quickly transferred reservoirs without permeable boundaries,flow types were transformed from a spherical type to cylindrical type,but there was no model for interpreting the composite flow.To solve this problem,new interpreting model is established for spherical-cylindrical composite flow of WFT with high displacement,and it can improve permeability precision for WFT interpretation.

关 键 词：电缆地层测试 薄层 复合流动 

分 类 号：P631.3[天文地球—地质矿产勘探] P618.13[天文地球—地质学]