Research On The Integral Fracturing In Ma56 Block Tight Oil Reservoir

The tight oil reservoir has the typical characteristics of tight lithology,extra-low permeability,low natural production capacity,fracture developed,using the conventional fracture technology with a single fracture is difficult to obtain a good effect to increase production,the development is extremely hard.Horizontal well integral fracturing is a highly effective technology for tight oil reservoir development,which can fundamentally change fluid seepage model.The horizontal well integral fracturing technology is already become a basic technical ideas to develop a tight oil reservoir.The geologic characteristics of Ma56 tight oil reservoir are analyzed and studied in this paper,reservoir distribution stability,medium-high porosity,extra-low permeability,high oil saturation,high brittleness,it’s suitable for using horizontal well integral fracturing development.The main development technology policy are studied in this paper,using the experience of similar reservoir development at home and abroad,The method to develop Ma56 block is using one layer series and depletion development.Using reservoir engineering methods we argument the depletion recovery and reasonable well production of Ma56 block.In accordance with the "overall volume reconstruction" concept,using stress and fracture monitor data,to carry out reservoir numerical simulation method and combined with the analysis of actual fracturing effect,determine the horizontal well row distance,azimuth,horizontal longth and other parameters,realize "Reservoir all broken and do not channeling ".Using reservoir numerical simulation method to analysis horizontal well reasonable working system and stable production ability,confirmed the production of the "control pressure drainage" technology,to prevent pressure-sensitive effect and prolong the flowing period.In this paper,the stage effect of the practice was analyzed.The key to evaluate the effect of production effect factor,production decline law,recovery,the key indicators which can reflect the characteristics of development.