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...

compressibility factor and viscosity of natural gasses are of great importance in petroleum and chemical engineering. to calculate the natural gas properties in the pipelines, storage systems and reservoirs, the exact values of gas compressibility factor and viscosity are required. a new method that allows accurate determination of compressibility factor and gas viscosity for all types of: swee...

Plunger dewatering gas extraction is a technology primarily used for low-yield natural collection. To maximize the efficiency of plunger extraction, optimization design necessary. This study based on principles lifting extraction. By calculating distribution fluid and pressure in wellbore during plunger's upward movement at startup, as it reaches wellhead, well shut-in, interconversion relation...

Abstract It is very important to accurately predict the gas well productivity and reasonably allocate production at early development stage of reservoirs. However, both non-Darcy stress sensitivity effects have not been investigated in dual-porosity model tight carbonate This paper proposed a new binomial deliverability single-well proration numerical model, which consider sensitivity. The fiel...

Abstract Although gas-lift is an established technology for improving the performances of oil production wells, simplicity, robustness and accuracy models remain to be fully resolved. As improvement on traditional practice, this paper proposes a new approach modelling performance gas-lifted wells at steady-state conditions. The conceptual framework splits wellbore into two segments. segments ar...

this research aims to apply a model to the study and analysis of environmental and natural resource costs created in supply chains of goods and services produced in thailand, and propose indicators for environmental problem management, caused by goods and services production, based on concepts of sustainable production and consumer behavior. the research showed that the highest environmental co...

Light olefins such as ethylene, propylene, and butylenes, are basic building blocks for petrochemicals. Further, these olefins are also useful for production of clean fuels such as alkylates – which have high octanes but no sulfur, olefins, and aromatics – or as octaneenhancers such as ethers. The conventional olefin production process is steam cracking of C2−C4 light paraffins from natural gas...

Horizontal wells can significantly improve the gas production and are expected to be an efficient exploitation method for industrialization of natural hydrates (NGHs) in future. However, near-wellbore hydrate is highly prone decomposition during drilling process, owing disturbance aroused by factors such as fluid temperature, pressure, salinity. These issues result engineering accidents bit sti...