Browsing by Subject "Wells"
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Item Advanced data analytics for optimized drilling operations using surface and downhole data(2022-12-05) Ashari, Rahmat; Oort, Eric van; Ashok, Pradeepkumar, 1977-Minimizing well construction cost continues to be a dominant performance motivator for operators who rely on subsurface energy. Drilling optimization is a primary approach that drilling engineers use to lower costs, and this can be achieved by focusing on two goals: maximizing rate of penetration (ROP) and minimizing non-productive time (NPT). With the advances in sensors and computational technologies, data-driven approaches have become increasingly popular to achieve these goals. Nonetheless, experiences reveal that many operators underutilize the values that can be derived from their data. This research study develops data analytics approaches that incorporate surface and downhole data from drilling operations. In particular, two topics were studied in detail: connection recipes and bit damage tracking. The first topic aimed to develop an optimum approach to execute drillstring connections –i.e., the “connection recipes”– that yields a minimum level of vibrations so as to prevent downhole tool failures. The second topic specifically concerns drill bits, where the goal is to develop a workflow to track the state of bit damage in real time. An actionable outcome from such a workflow is the construction of a pull bit criterion, which serves as a guideline for drillers to decide whether a trip out is necessary. The data analytics workflows presented in this study will equip engineers with the capabilities to not only standardize connection-making practices to prevent downhole tools failures, but also optimize drilling performance by real-time bit damage monitoring that further helps lower NPT. For the connection recipes project, the data studied presented several unfavorable practices relating to surface rotational speed and weight on bit promoting the occurrences of stick-slip events, whirling, and shocks when going back to bottom and going off-bottom. Based on these observations, safer connection practices were identified. For the bit damage tracking project, bit wear and tooth wear metrics were computed. When applied on historical real-time drilling data, they revealed trip outs that were conducted either too early or too late. Based on several case studies, a bit pull criterion was subsequently developed. The two projects leveraged surface and downhole drilling data to produce insights and workflows that are deployable in real-time for drilling optimization.Item Andrews County, Texas : records of wells, test well and drillers' logs, water analyses, and map showing location of wells(Texas Board of Water Engineers, 1937) Geological Survey (U.S.); United States. Work Projects AdministrationItem Aransas County, Texas : records of wells, drillers' logs, water analyses, cross sections, and map showing locations of wells(Texas Board of Water Engineers, 1940) Geological Survey (U.S.)Item Armstrong County, Texas : records of wells and springs, drillers' logs, water analyses, and map showing locations of wells and springs(Texas Board of Water Engineers, 1940) Geological Survey (U.S.)Item Austin County, Texas : records of wells, drillers' logs, water analyses, and map showing locations of wells(Texas Board of Water Engineers, 1938) Geological Survey (U.S.)Item Bailey County, Texas : records of wells, drillers' logs, water level measurements, water analyses, and map showing location of wells(Texas Board of Water Engineers, 1937) Geological Survey (U.S.); United States. Work Projects AdministrationItem Bee County, Texas : records of wells, test wells, drillers' logs, chemical analyses of water and map showing location of wells(Texas Board of Water Engineers, 1941) Geological Survey (U.S.); United States. Work Projects Administration; Frazier, J. M.Item Blanco County, Texas : records of wells and springs, drillers' logs, water analyses, and map showing locations of wells and springs(Texas Board of Water Engineers, 1942) Geological Survey (U.S.); United States. Work Projects AdministrationItem Brazoria County, Texas ; east of the Brazos River : records of wells, drillers' logs, water analyses, and map showing location of wells (1939)(Texas Board of Water Engineers, 1939) Turner, Samuel F. (Samuel Foster), 1901-Item Brazoria County, Texas ; west of the Brazos River : records of wells, drillers' logs, and water analyses, and maps showing location of wells(Texas Board of Water Engineers, 1937) Geological Survey (U.S.); United States. Work Projects AdministrationItem Brooks County, Texas : records of wells, drillers' logs, water analyses, and map showing location of wells(Texas Board of Water Engineers, 1940) Geological Survey (U.S.)Item Brown County, Texas : records of wells, drillers' logs, and water analyses, and map showing location of wells(Texas Board of Water Engineers, 1938) Geological Survey (U.S.); United States. Work Projects AdministrationItem Burleson County, Texas : records of wells, drillers' logs, and water analyses, and map showing location of wells(Texas Board of Water Engineers, 1937) Geological Survey (U.S.); United States. Work Projects AdministrationItem Calhoun County, Texas : records of wells, drillers' logs, water analyses, and map showing locations of wells(Texas Board of Water Engineers, 1941) Geological Survey (U.S.)Item Callahan County, Texas : records of wells and springs, drillers' logs, water analyses, and map showing locations of wells and springs(Texas Board of Water Engineers, 1940) Geological Survey (U.S.)Item Camp, Franklin, and Titus Counties, Texas : records of wells, springs, drillers' logs, water analyses, and map showing locations of wells and springs(Texas Board of Water Engineers, 1943) Geological Survey (U.S.)Item Carson County, Texas : records of wells, drillers' logs, water analyses, and map showing location of wells(Texas Board of Water Engineers, 1939) Geological Survey (U.S.); United States. Work Projects AdministrationItem Cass County, Texas : records of wells and springs, drillers' logs, water analyses, and map showing locations of wells and springs(Texas Board of Water Engineers, 1942) Texas Board of Water EngineersItem Castro County, Texas : records of wells, drillers' logs, and water analyses, and map showing location of wells(Texas Board of Water Engineers, 1939) Ryman, Lloyd J.Item Chambers County, Texas : records of wells, drillers' logs, water analyses, and maps showing locations of wells and test holes(Texas Board of Water Engineers, 1942) Geological Survey (U.S.)