tailieunhanh - Reservoir Formation Damage Episode 3 Part 9

Tham khảo tài liệu 'reservoir formation damage episode 3 part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 682 Reservoir Formation Damage structural Settings Petrophysics Lithostratigraphy Petrographic Completion Well Testing Depositional Env. Classification Methods Facies Analysis Heterogeneities Previous Diagenetic Processes Clays Surface Facilities Treatment Framework Char. History Pore System Operation Diagenetic Minerals Practices Figure 22-1. Issues involving candidate selection and reservoir formation damage studies after Yeager et al. 1997 SPE reprinted by permission of the Society of Petroleum Engineers . Pressure Transient Testing Analysis Deliverability Decline Analysis RSCT Testing . Patent No. 719 Baller Samples Wellbore Fluid Samples Downhole Video Initial State Core Analysis Natural Fluid Analysis Core Flow Testing On-Site Injection System Damage Testing Treatment Fluid Flowback Diagnostics Rock Mechanics Geochemical Simulation Figure 22-2. Issues involving reservoir formation damage determination after Yeager et al. 1997 SPE reprinted by permission of the Society of Petroleum Engineers . Field Diagnosis and Measurement of Formation Damage 683 perforations. Figure 22-3 by Yeager et al. 1997 shows a schematic of a typical high-resolution video camera and a still image indicating significant wellbore scaling obtained using this camera. The video observations also provide valuable information necessary for determination of the flow distribution that can be used to improve the accuracy of the welltest interpretation and identification of the formation damage mechanisms Yeager et al. 1997 . Pressure transient tests yield information on the permeability and formation thickness product Kh and skin factor 5. As pointed out by Yeager et al. 1997 pressure transient tests only provide information at a specific time when the tests are conducted. Therefore formation damage can be more effectively evaluated by conducting a series of tests over a length of time and also the true skin should be determined after corrections for other effects such as non-Darcy or