The effect of acidizing process on the stress corrosion cracking HP-13Cr stainless steel in ultra-depth well environment was studied by slow strain rate test, electrochemical measurement, microstructure observation, and finite element modeling. results indicated that significantly increased susceptibility induced fracture mode to brittle characteristic high temperature CO 2 pressure environment...

Abstract Acidizing, as an essential approach for well stimulation of sandstone or carbonate reservoirs, greatly affects the brittleness rock mass. Therefore, it is great significance to develop a scientific evaluation methodology acid-corroded rock. In this paper, firstly, damage constitutive model considering compression hardening process under uniaxial loading established and verified. Then, ...

Change regulation of the physical properties fluid is key to accurately predicting multiphase flow in production wellbore CO2 flooding reservoirs. Given characteristics significant changes pressure, temperature, and content whole wells reservoirs, this paper systematically studied change rules volume factor, viscosity, density, solubility well for pressure 5~30 MPa, temperature 20~120 °C, 10~90...

Background: Absolute and relative phase permeability capillary pressure are important parameters in predicting oil gas production from reservoirs, especially when acidizing the bottomhole zone of a well. They mainly determined during long resource-intensive laboratory experiments. Thus, additional approaches required for operational determination above parameters. The pore-network modeling base...

In matrix acidizing operations, the main goal is increasing permeability. For production engineers, it is desirable that acid could be injected into whole [M.N.1] [amehri.gh2] pay zone. Sometimes, this pay zone has a long height and various sub-layers which have different permeability values. To prevent acid from going completely into the most permeable sub-layer, one of the useful techniques i...

The inhibition performance of a novel benzenesulfonamide-based benzoxazine compound in the corrosion X60 carbon steel an acidizing environment has been examined including some highly electronegative atoms.

Underground gas storage is the best choice for natural resource reserve and peak value. Storage capacity of underground single well injection production are key indicators shaving capacity. This paper focuses on research expansion stimulation a basin in Western China. Firstly, based study two-phase seepage law water, numerical simulation model coupling high velocity non-Darcy effect gas-water t...