A Discussion of the Compound Sand Control Technique of High Pressure Packing and Moderate Acidification

作者：Jingen, D.; Xun, Z.; Yu, C.^*; Wenlong, Z.; Shujie, L.

来源：Petroleum Science and Technology, 2013, 31(12): 1306-1311.

DOI：10.1080/10916466.2010.542424

• acidification
• formation permeability
• gravel packing
• high pressure packing
• sand control

Acidification can both eliminate formation damage and improve flow passage, which can be good for improving single well productivity. Based on this, the authors bring up the thought of moderate acidification technique for sandstone reservoir, and combine it with high pressure packing technique, and one step further, presents a compound sand control technique of high pressure packing and moderate acidification. At the same time, the authors preliminarily discuss the main points of this technique and analyze its mechanism of sand control and yield increase as well as its adaptability. The main purpose of this technique is to clean out the clay and mud in the immediate vicinity of wellbore, decrease the fine content or the particle size in that area, enlarge the seepage channel, and fill in optimized gravel, so as to make it conducive for transpiring the fine sand in the formation and keeping the gravel layer unblocked, as a result making the sand control life prolonged and single-well productivity raised. The keys of this compound technique are moderate acidification and gravel size optimization.

• 出版日期2013-6-15
• 单位中国石油大学（北京）