%0 Journal Article %T The Mechanism of HDNS and Study on Programme Optimization %A ZHANG Zhongping %J Advances in Petroleum Exploration and Development %D 2013 %I %R 10.3968/j.aped.1925543820130501.1167 %X The shallow and thin layer heavy oil reservoir of Pai-601 block in Xinjiang adopts HDNS (horizontal well+ dissolver + nitrogen gas+ steam injection) to develop the heavy oil reservoir. It has made a significant effect, solving production problems of the block, such as: low natural energy, less thermal loss, and less oil cycle production. In order to improve the next process scheme, we have conducted a thorough study of its mechanism. The best HDNS¡¯s parameters of Pai-601 block were chosen as follows: steam injection is 9.5~10.5 m3/m, nitrogen gas injection is 140~160 Nm3/m and thinning agent¡¯s optimum dosage is 0.10 t/m. Key words: Shallow and thin layer; Super heavy oil; The technology HDNS; Mechanism; Scheme optimization %K Shallow and thin layer %K Super heavy oil %K The technology HDNS %K Mechanism %K Scheme optimization %U http://cscanada.net/index.php/aped/article/view/3333