accurate permeability estimation has always been a concern in determining flow units, assigning appropriate capillary pressure andrelative permeability curves to reservoir rock types, geological modeling, and dynamic simulation.acoustic method can be used as analternative and effective tool for permeability determination. in this study, a four-step approach is proposed for permeability estimati...

This paper, by conducting comprehensive analysis on water-flooding reservoir, intensively studied and discussed the characteristics of geological development, determined evaluation indexes development effect, carried out research from five steps, first is introduction part, it conducted indepth study discussion background, significance, literature review, methods four aspects. The second outlin...

Gas-liquid separator is an important surface equipment in oilfield development. Improving the separation efficiency of great significance to overall economic benefit oilfield. Spiral a high device that has been widely used, but at present, there are not enough studies on number spiral turns and pitches. In view this problem, paper analyzed gas–liquid separators with different pitches via fluent...

During nearly 25 years of water injection development in Gaotaizi reservoir LHP oilfield, due to poor physical properties, adaptability well pattern and difficulty establishing effective displacement between oil Wells, linear injection, infill adjustment refracturing tests have been carried out successively. Although certain effects seen, the are short unsatisfactory. In this paper, microscopic...

Determination of the borehole and fracture initiation positions is the main aim of a borehole stability analysis. A wellbore trajectory optimization with the help of the mud pressure may be unreasonable since the mud pressure can only reflect the degree of difficulty for the initial damage to occur at the wellbore rather than the extent of the wellbore damage. In this work, we investigate...