... Abstract This paper examines wellbore integrity in saltwater disposal (SWD) operations via modeling the stress-distribution evolutions within a well's casing-cement sheath-rock formation (C/CS/RF) system. Injection from SWD wells is thought to be responsible for elevated seismicity in regions...

... The layers are filled with the injected gas from the bottom to the top. Consider the reduction in permeability from its initial value, denoted as k ( z ), to reach the stabilized damaged value, represented as k d ( z ). Several physical mechanisms can induce changes in permeability during CO 2...

... formation while drilling an injection well. In this scenario the core plug was initially 100% saturated with formation water, and return permeability was measured by injecting formation water through the core in the same direction as the test fluid filtrate invasion. Testing was conducted at two...

... Abstract One of the key risks for a Carbon Capture Storage (CCS) project is injectivity decline. Evaporation of the connate brine in near-wellbore region during Carbon dioxide (CO 2 ) injection may result in migration of clay particles leading to decline rock permeability and consequent loss...

... Abstract CO 2 sequestration in deep saline aquifers is vital to reduce the global carbon footprint. However, this effort can be hampered due to salt precipitation during CO 2 injection, which clogs flow pathways leading to a significant reduction in CO 2 injectivity. While freshwater has...

... Abstract In many respects formation damage challenges in CO2 storage wells are similar to those in conventional oil and gas production wells and water and gas injection wells. But there are some differences from "conventional" well formation damage challenges. This paper outlines some issues...

... Abstract In this paper, we examine wellbore integrity during carbon dioxide (CO 2 ) injection in deep saline aquifers, by modeling stress-distribution evolutions within the casing-cement sheath-rock formation (C/CS/RF) system. For our analysis, a mechanistic model is used, which considers...

.... Acid propagation and drilling fluid invasion profiles were a function of core plug characteristics. The core damage caused by CaCl 2 /CaBr 2 brines were significantly higher than NaBr brine. The injection of low salinity brine removed the core damage caused by heavy brines (i.e., precipitated salts...

... Abstract Evaporation of formation brine into the injected CO 2 -rich stream during permanent CO 2 storage in hypersaline aquifers creates the risk of formation damage due to the deposition of halite arising from the "salting out" effect. Such deposition may block pores, negatively impacting...

..., carbonates and dolomite the most common ones. One key parameter for subsurface CO 2 storage is well injectivity. Change in well injectivity is a well-known problem in CO 2 injection wells, either in enhanced oil recovery or sequestration projects (Grigg and Svec 2003). The well injectivity might change due...

... and operations geology proppant fracturing materials geologist particulate diverter hydraulic fracturing perforation castilla field llanos basin injection fracture efficiency permeability diversion technology scenario geological subdiscipline hydraulic fracture reservoir geomechanics hydraulic...

... Abstract Produced water re-injection in hydrocarbon extraction is nowadays common practice mainly enforced by environmental concerns and regulations. Produced water contains, however, significantly higher levels of solids and oil emulsions than regular water used for injection purposes...

... Summary Critical salt concentration (CSC) is the minimum salt concentration of injected water, below which fines migration occurs in sandstone reservoirs. Sand grains and fine particles experience Van der Waals attraction, electric double-layer repulsion, and hydrodynamic forces. Injection...

... with each other ( Md Yusof et al. 2022 ), highlighting the importance of accurate modelling in order to understand the effect on injectivity. Central to understanding these processes is an accurate model of the evaporation process itself. Several models have been presented for the rate of evaporation...

... Abstract The production of heavy crudes presents a considerable challenge due to several factors. These include complex geology, active aquifers, wells influenced by water injection patterns, reservoirs with mixed wettability tendencies favoring oil (high affinity between heavy crude...

... Abstract The Mariner Field consists of two shallow heavy oil reservoir sections: the deeper Maureen Formation and the shallower Heimdal Reservoir. Produced water is re-injected through stand-alone screens providing pressure maintenance for the aquifer support and producer well life longevity...

... Abstract The Enhanced Oil Recovery (EOR) assisted with CO 2 injections has been widely addressed. However, limited experimental work has been done for studying the asphaltene precipitation arising during the immiscible CO 2 injection processes. This investigation presents experimental phase...

... Abstract The injection of oil and gas wastes produced during the exploration and production phases have been proven to be an effective technique toward achieving zero discharge. However, several challenges are associated with the injection of slurry into an underground formation. The most...

... in the matrix affects the imbibition of 3pRB or 3p from the fracture and the resulting recovery of oil from the matrix. The experimental results were analyzed in terms of material balance (mass and volume) with simplifying assumptions. This analysis enabled to estimate how much of the injected components were...

... information on wells to be treated. Consequently, developing any water shutoff methods must comprise techniques, which must be used to rehabilitate the productivity, permeability, injectivity. That question is practically not discussed in the literature. Concerning the barrier formation kinetics...