Old well and vertical well fracturing and energizing integrated optimization design method

• Main Authors: WANG WEI, SUN YU, WEI TIANCHAO, PEI YONGMEI, ZHANG HONGTAO, ZHENG JIMING, ZHAO LIANG, LI DONGXU, WANG HONGDA, WANG XIANJUN, GU MINGYONG, LIU YU
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC DIGITAL DATA PROCESSING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to the technical field of oil field reservoir transformation and recovery efficiency improvement, in particular to an old well and vertical well fracturing and energy increasing integrated optimization design method. The problems that low-permeability and tight reservoir old well stratum energy is insufficient, and fracturing and energy increasing integrated transformation design optimization cannot be quantified are mainly solved. According to the method, firstly, a target well is selected, and then the reasonable energizing liquid injection amount and the after-pressure well shut-in time are determined through a formation pressure recovery chart and an optimal imbibition well shut-in time formula. The method has the advantages that the operation is simple and visual, the formation pressure can be effectively recovered, and the single well productivity is further improved. 本发明涉及油田储层改造技术和提高采收率技术领域，具体涉及一种老井直井压裂增能一体化优化设计方法。主要解决了低渗、致密储层老井地层能量不足，压裂增能一体化改造设计优化无法定量的问题。本发明首先进行目标井选择，然后通过地层压力恢复图版