Heavy oil reservoirs are often characterized by high viscosity and poor mobility, which is more complex with the presence of bottom water. The conventional vertical well development method has low recovery efficiency limited controlled reserves a single well. In addition, water cut can increase dramatically when edge-bottom breaks through. Horizontal CO2 huff-n-puff an effective alternative mod...

There are large, heavy oil reserves in Block X of the Xinjiang oilfields, China. Due to its large burial depth (1300 m) and low permeability (26.0 mD), traditional steam-injection technology cannot be used obtain effective development benefits. This paper conducts experimental simulation research on feasibility mechanism CO2-energized fracturing horizontal wells N2 foam huff-n-puff deep reservo...

As an option to improve the ultimate oil recovery factor of Rang Dong field, a feasibility study gas-assisted gravity drainage (GAGD) application was carried out for fractured basement reservoir with single-well Huff ‘n’ Puff pilot test applied on high water-cut producer. This paper aims provide in-depth understanding about such case study, which includes details candidate selection, gas inject...