变孔密筛管控流完井参数优化及数值模拟分析  

Parameter optimization and numerical simulation analysis of varied perforated premium screens in horizontal wells

作　　者：陈阳[1,2] CHEN Yang(Drilling Technology Research Institute of Shengli Petroleum Engineering Co.,LTD,SINOPEC,Dongying,Shandong 257017)

机构地区：[1]中国石化胜利石油工程有限公司钻井工艺研究院,山东东营257017 [2]中国石油和化学工业联合会"非常规油气钻完井技术重点实验室"

出　　处：《石油地质与工程》2018年第6期109-112,121,共5页Petroleum Geology and Engineering

基　　金：国家科技重大专项"断块油田特高含水期提高水驱采收率技术"(2011ZX05011-003)

摘　　要：针对现场仅凭经验设计水平井变孔密筛管控流完井参数导致控流效果不理想的问题,初步建立配套完井参数优化方法。根据数值模拟模型确定的各投产井段所需合理控流压降要求,选择最佳控流参数组合,将各投产井段泄流强度控制在合理范围内,实现均衡供液。实例井分析结果指出,相比常规完井,开井300天时,优化方案条件下原油累积产量增幅和产液含水率降幅分别达9. 69%和10. 68%,经验方案仅为2.13%和2. 99%,表明优化参数后控流完井的控水稳产效果更好。Aiming at the problem that the control effect is not ideal due to the design of flowing control completion parameters of horizontal wells with varied perforated premium screen on the basis of field experience,a corresponding optimization method for completion parameters is preliminarily established.According to the reasonable additional pressure drop requirements calculated by numerical model,the optimal control parameters were selected to control the discharge intensity of each well section in a reasonable range,and the equilibrium liquid supply was achieved.A case study shows that compared with conventional sand control completion method,the optimal design brings 9.69%more cumulative oil and 10.68%less water content on the 300 th day after well opening,while the experiential design only 2.13%more oil and 2.99%less water,which indicates the enhanced capacity of water control and stable oil production of the optimal design.

关 键 词：水平井 控流完井 变孔密筛管 参数优化 数值模拟 

分 类 号：TE257[石油与天然气工程—油气井工程]