...Chris Carpenter _ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 219993, “Effects of Cyclic Salt Precipitation on CO 2 Injectivity: From Pore Scale to Near Wellbore,” by Andrew Fogden, Till Bollermann, and Yennyfer Barreto, SPE, Wintershall Dea, et...

... infrastructure. Enhanced oil recovery (EOR) techniques, particularly those involving CO 2 injection (CO 2 -EOR), can bridge the gap between current energy needs and future renewable energy adoption. CO 2 -EOR maximizes oil recovery and provides an attractive and commercially established technique to store CO 2...

...-and-center component of any life-cycle planning, with multiple pathways addressed by subsurface control, surface treatment technologies, reuse, injection, and safe environmental discharge. This paradigm shift in our industry is a direct result of coming to the realization of its own dependence on having...

... is the relatively viscous oil of 40–140 cp. The field was initially developed with long horizontal wells and downhole pumps. Viscous oil implies mobility challenges, however, and water injection could lead to unstable displacement, early water breakthrough, and possible coning issues. After a successful pilot PF...

..., hydrates can form within the injection wells when switching from water to gas and vice versa. This study investigates hydrate formation in a WAG injection well under water-to-gas and gas-to-water changeover operations. Introduction Few previous studies have focused on hydrate formation in gas injection...

... with subsea wells had been operated for many years without any history of scaling. The wells were operated under pressure depletion with no water-injection support, but lift gas injection was initiated approximately 10 years ago to maintain production. When a decision was made to increase production from one...

... of dolomite and anhydrite, with subordinate limestone. Production of oil and gas comes from four main reservoirs—A, B, C, and D. The ongoing development centers around miscible gas injection along the crestal part of each reservoir and peripheral water injection. Integrated asset models are one of many key...

... and injection wells to gather valuable reservoir information to drive block development. In April 2022, Mero 1, the first permanent project in the Mero field, began production with FPSO Guanabara . To explore, derisk, and optimize the development concept of the large Mero field, the Libra Consortium launched...

... calculations revealed that, instead of limiting drawdown, compensation of evaporation by downhole supplementation of fresh water could be feasible. Capillary strings have been used temporarily for cleanout of halite, but now permanent application with permanent continuous downhole water injection has been...

... the standard method and improving performance on a giant field model with compositional gradient and miscible gas injection. Field Description The case study refers to a giant offshore carbonate field composed of multiple reservoirs. Production is currently in a rampup phase; crestal miscible hydrocarbon gas...

... efficiency, water-alternating-gas (WAG) injection often has been applied. The effectiveness of WAG diminishes, however, because of the presence of microscale reservoir heterogeneity that results in an early breakthrough of gas. In the complete paper, the authors propose polymer-assisted WAG (PA-WAG...

... completely contained within a single defined reservoir section and that only one treatment, or injection sequence, could be executed on each well. The complete paper provides detailed case studies for each well. In this synopsis, the case study for Well 1 is summarized. geologist fracturing fluid...

.... The paper has not been peer reviewed. _ In the S Field described in the complete paper, a major control mechanism applied to optimize waterflooded reservoirs is controlling the water injection and pumping rates of producers. The reservoir surveillance team has been using a simple, spreadsheet-based...

...-learning framework forecast dynamic simulation prediction injection history matching discrete timestep precipitation carbon dioxide mineralization TECHNICAL PAPERS | History Matching and Forecasting Deep-Learning Framework Forecasts Dynamics of Carbon Dioxide Mineralization Reactive rocks, when...

... vertical injectors and three horizontal producers per pattern. Thermal development of the field with steam injection began in July 2007. Steamflood maturity has been inconsistent across the field. Various methods of optimizing steam-injection volumes or steam reshuffling in the offset injectors in some...

.... Introduction The authors conducted a pore-network micromodel experiment to analyze the effect of emulsifiers on the SAGD process. Hot water, with and without a priority emulsifying agent, was injected into a bitumen-saturated micromodel at 82°C. The surfactant solution can remove the residual oil from...

...: 2019–2022 CSS maturity is one of the major challenges in the MMV. Many wells report more than 10 steam cycles, decreasing oil productivity, and a trend of shorter steam cycles (less than 10 months). Most injected steam drained the higher-flow-capacity intervals based on the permeability contrast within...

... permeability of 19.9 md and a porosity of 7.2% was used. The experiment was conducted at a temperature of 250°F and an overburden pressure of 3,000 psi. A flow rate of 1 cm3/min was used for the injection of 7 wt% KCl brine and the enzyme solution. The core permeability of the KCl solution was found to be 7.6...

...Chris Carpenter _ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 216673, “CO 2 Injectivity Test Proves the Concept of CCUS Field Development,” by Yermek Kaipov, SPE, and Bertrand Theuveny, SLB, and Ajay Maurya, Saudi Aramco, et al. The paper has...

... and applications, especially for commercial-scale deployment. In the complete paper, a method with multitiered analysis has been developed to leverage advanced machine-learning (ML) techniques to process passive seismic monitoring data acquired during an injection period along with pumping/injection pressure...