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苏丹A油田属于陆相沉积多油层高渗砂岩油藏,储层单层薄、小层多、埋深浅,开发层位为Y层和S层,全区44口油井中有41口井出砂,且沉砂速度较快,油井捞砂作业周期短。目前出砂预测模型和防砂设计软件种类繁多,但在模拟计算过程中需要的参数种类多且难以取全取准,导致很多模型及软件的应用受到制约。在对各项防砂工艺进行适应性分析的基础上,优选出适用于A油田的三种滤砂管防砂工艺:双层预充填绕丝筛管、绕丝筛管防砂工艺和整体烧结金属纤维筛管防砂工艺,并依据Wilson和Gill方法、Saucier方法,计算了相应的筛管缝宽和预充填绕丝筛管砾石尺寸。其中,绕丝筛管防砂工艺在A油田实施23口井,平均单井日产油量提高11.8%,工艺实施8个月累计增油73968t,确保了出砂油井的正常生产,减少了作业次数,增加了油井的生产时率。应用的简易防砂优选方法需要的参数少而易得,便于现场操作,且能够满足现场防砂方法优选的需要。
Sudan Oilfield belongs to the continental sedimentary multi-reservoir high permeability sandstone reservoir. The reservoirs are thin and small in single layer and shallow in depth. The development layers are Y layer and S layer. There are 41 wells out of 44 wells in the whole area, And settling speed faster, oil well sand operating cycle is short. At present, there are many kinds of sand forecasting model and sand control design software, but many kinds of parameters are needed in the process of simulation calculation and it is difficult to take full allowance. As a result, many models and software applications are restricted. Based on the adaptability analysis of various sand control technologies, three sand control technologies for sand control of A oil field are optimized: double-layer pre-filled wire-wound sieve pipe, wire-wound sieve pipe sand-control process and monolithic sintered metal fiber sieve According to the Wilson and Gill method and the Saucier method, the corresponding screen slit width and prefabricated wire wrap gravel size were calculated. Among them, the wire-wound screen sand control technology in the A field implementation of 23 wells, the average single well daily oil production increased by 11.8%, the process of 8 months cumulative increase of 73968t, to ensure the normal production of sand production wells and reduce the number of operations, Increase the production rate of the well. The simple sand control preferred method of application requires few and few parameters to facilitate on-site operation and to satisfy the preferred needs of the on-site sand control method.