Well integrity is critical to the safety and success of subsurface energy exploration management, as leakage fluids from reservoirs often induced by compromised wells. This study investigates bending deformation a mockup an oil/gas well that subjected loads expected in deviated wells under reservoir compaction assesses feasibility utilizing distributed fiber optic strain sensing monitor deforma...

Natural gas hydrate (NGH) concentrations hold large reserves of relatively pure unconventional natural gases, consisting mainly of methane. Depressurization is emerging as the optimum conversion technology for converting NGH in its reservoir to its constituent water and natural gas. NGH concentrations commonly have a pore fill of over 80%, which means that NGH is a low-permeability reservoir, a...

This study aimed to carry out the data-driven evaluation of pores and microfractures in tight conglomerate reservoirs combining machine learning complex geometric analysis, then investigate internal control factors reservoir damage. Results show that for Upper Wuerhe formation Mahu sag Xinjiang China, average contribution rate fluid storage seepage is 7.1 times pores, dominate seepage. Besides,...

In the past decade, there has been a massive growth in the horizontal drilling and hydraulic fracturing of shale gas and tight oil reservoirs to exploit formerly inaccessible or unprofitable energy resources in rock formations with low permeability. In North America, these unconventional domestic sources of natural gas and oil provide an opportunity to achieve energy self-sufficiency and to red...

The driving forces behind gas flow and migration, as well the associated gas–water distribution patterns in tight reservoirs, are not only closely related to formation mechanisms of “sweet spots”, but also serve crucial geological foundations for development efficient modes optimal placement. In this work, three methods, namely, critical column height driven by buoyancy, pore throat radius atti...

Tight gas carbonate formations have enormous potential to meet the supply and demand of ever-growing population. However, it is impossible produce from these due reduced permeability lower marginal porosity. Several methods been used extract unconventional tight reservoirs, including hydraulic fracturing acidizing. field studies demonstrated that environmental flaws technical problems. Liquid n...