Paper Number : SPE-202281-MS Paper Title : Integrating Reservoir Characterisation, Diagnostic Fracture Injection Testing, Hydraulic Fracturing and Post-frac Well Production Data to Define Pressure Dependent Permeability Behavior in Coal Author Block : R.L. Johnson, Z. You, A. Ribeiro, S. Mukherjee, V.S. Santiago and C. Leonardi, U. of Queensland APOGCE Conference 2020 registration: https://www.spe-events.org/apogce2020/home Abstract Defining pressure dependent permeability (PDP) behaviour in coalbed methane (CBM) or coal seam gas (CSG) reservoirs using reservoir simulation is non-unique based on the uncertainty in coal properties and input parameters.   A diagnostic fracture injection test (DFIT) can be used to investigate bulk permeability at a reservoir level and at lowered net effective stress conditions.  As…

Paper Number : SPE-202248-MS Paper Title : A Digital Core Laboratory Characterising Oil Water Transition Zones Author Block : G.R. Morrison, Woodside Energy Ltd. APOGCE Conference 2020 registration: https://www.spe-events.org/apogce2020/home Abstract A multi-chamber, finite-difference dynamic model assumed pore-scale reservoir properties (Table 1) and replicated laboratory processes to determine oil-water transition zone characteristics: (1) imbibition residual oil saturation to water flood (distributed as a function of rock properties); (2) imbibition oil-water relative permeability (according to both steady-state and unsteady-state calculations); and, (3) microscopic oil recovery factor as a function of height above free water level.  A priori, scaled capillary pressure hysteresis and segregated flow conditions governed pore-scale flow behaviour (initial mobile saturation…

Paper Number : SPE-202317-MS Paper Title : Matrix Water Injection: A Novel Technique Author Block : A. Eshtewi, R. White and S. Campbell, Woodside Energy Ltd. APOGCE Conference 2020 registration: https://www.spe-events.org/apogce2020/home Abstract The Greater Enfield Project (GEP) is a challenging offshore oil development, designed to produce from the Laverda Canyon, Cimatti and Norton over Laverda oil fields. Six water injection wells are required to provide pressure support and sweep oil to three production wells in the Laverda Canyon and Cimatti oil accumulations to improve oil recovery. The GEP injection wells are a critical aspect of water flood design in a complex field, new to Woodside and with limited global benchmarks.…

Paper Number : SPE-202390-MS Paper Title : Wheatstone and Iago Fields Interference Testing: Execution and Interpretation with Ensemble Variance Analysis Author Block : M. Flett and P. Connell, Chevron Australia Pty. Ltd. APOGCE Conference 2020 registration: https://www.spe-events.org/apogce2020/home Abstract The Wheatstone Project is an LNG development located in Western Australia, incorporating the Chevron Australia operated Wheatstone and Iago fields and third-party gas fields. Production commenced in mid-2017. The start-up of the Wheatstone and Iago fields was a unique opportunity to acquire reservoir surveillance information that was able to provide valuable reservoir insights. A key component of the analysis was the observation of pressure interference between wells from the initial well clean-ups.…

Paper Number : SPE-202359-MS Paper Title : A Case Study of Continous Improvement: Successes and Challenges of the Norton Multilateral Development Author Block : B. Dutta and Q. Cahill, Woodside; V. Negrini, C. Jelly and B. Butler, Halliburton APOGCE Conference 2020 registration: https://www.spe-events.org/apogce2020/home Abstract The recent, sustained depression in global oil prices has driven a significant reduction in upstream Exploration and Production (E&P) expenditure, particularly in the capital-intensive offshore environment.  The high costs traditionally associated with E&P development, specifically in subsea developments, have driven a requirement for the adoption of technologies that not only increase the efficiency of the well construction process, but also reduce the total number of wells…