Petrophysical Tutorial, Lessons Learned, and Evaluation Workflow: A Case Study in the Power River Basin  

作　　者：Stephanie E. Perry Matthew White Stephanie E. Perry;Matthew White(GeoMark Research, Houston, TX, USA)

机构地区：[1]GeoMark Research, Houston, TX, USA

出　　处：《Natural Science》2021年第5期140-190,共51页自然科学期刊（英文）

摘　　要：The objective is to empower the reader and scientific community with the knowledge and specific applicable equations to then reproduce the critical rock and fluid attributes in the Powder River Basin. To then continue to unravel the basin and its potential (both conventionally and unconventionally). The overall goal is to ensure the transfer of knowledge and </span><span style="font-family:Verdana;">communication of a petrophysical workflow that can then also influence application to </span><span style="font-family:Verdana;">other basins worldwide. </span><span style="font-family:Verdana;">The Powder River Basin is in southeast Montana and northeast Wyoming and is a prolific oil and gas (hydrocarbon-prone) sedimentary basin related to the greater </span><span style="font-family:Verdana;">Rockies chain/series of hydrocarbon-bearing basins (ex. Big Horn, Greater Green River, </span><span style="font-family:Verdana;">Denver-Jules). In this study, we briefly set-up the geological background of the Powder River Basin and the importance/ relevance to then tackling subsurface petrophysical evaluation on a regional scale. Approximately, 200 wells were evaluated petrophysically by a combined deterministic and inversion-based workflow representing an effort to share best practices, ap</span><span style="font-family:Verdana;">proaches, and the relative trends to apply in the basin to unravel the stratigraphic hydrocarbon potential in place. An extensive workflow involving basic petrophysical approaches such as raw log applicable cutoffs and volume of clay determination are shared as well as extending </span><span style="font-family:Verdana;">knowledge and application into advanced petrophysics through geochemical property derivation and impact of those derived properties as well as bound versus free water and hydrocar</span><span style="font-family:Verdana;">bon understanding. Results of the petrophysical analysis highlight the varying properties in conventional and unconventional formations (example Niobrara). The results The objective is to empower the reader and scientific community with the knowledge and specific applicable equations to then reproduce the critical rock and fluid attributes in the Powder River Basin. To then continue to unravel the basin and its potential (both conventionally and unconventionally). The overall goal is to ensure the transfer of knowledge and </span><span style="font-family:Verdana;">communication of a petrophysical workflow that can then also influence application to </span><span style="font-family:Verdana;">other basins worldwide. </span><span style="font-family:Verdana;">The Powder River Basin is in southeast Montana and northeast Wyoming and is a prolific oil and gas (hydrocarbon-prone) sedimentary basin related to the greater </span><span style="font-family:Verdana;">Rockies chain/series of hydrocarbon-bearing basins (ex. Big Horn, Greater Green River, </span><span style="font-family:Verdana;">Denver-Jules). In this study, we briefly set-up the geological background of the Powder River Basin and the importance/ relevance to then tackling subsurface petrophysical evaluation on a regional scale. Approximately, 200 wells were evaluated petrophysically by a combined deterministic and inversion-based workflow representing an effort to share best practices, ap</span><span style="font-family:Verdana;">proaches, and the relative trends to apply in the basin to unravel the stratigraphic hydrocarbon potential in place. An extensive workflow involving basic petrophysical approaches such as raw log applicable cutoffs and volume of clay determination are shared as well as extending </span><span style="font-family:Verdana;">knowledge and application into advanced petrophysics through geochemical property derivation and impact of those derived properties as well as bound versus free water and hydrocar</span><span style="font-family:Verdana;">bon understanding. Results of the petrophysical analysis highlight the varying properties in conventional and unconventional formations (example Niobrara). The results

关 键 词：PETROPHYSICS Wireline WORKFLOW Niobrara Power River 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]