Performance and application of weighted GHPG fracturing fluid with low cost

An inorganic salt additive is selected to cut the cost of high density weighted fracturing fluid by laboratory experiment. CoMPared to KCl weighted fracturing fluid whose density is 1.15 g/cm3, this fracturing fluid density is dramatically increased to 1.32 g/cm3. And the cost of this fluid saves 3000 Yuan /cm3 compared to NaBr weighted fracturing fluid at the same density (1.3 g/cm3). The performance of this weighted GHPG fracturing fluid is introduced in this paper. This has been used in 5wells drilled through 8 layers and the success ratio and availability of site operation were all reached to 100%. The stimulation result is noticeable with production increased more than 2 fold and especially the gas production of 2 wells exceeded million m3. All of these illustrate that the fluid system can meet the demand of geologic feature and fracturing technology for foreland thrust formation in Kuche Tarim oil field. The successful operation of this fracturing fluid provides technical support and economical developed through fracturing to improve single well production for this block.