Operators can choose from a wide range of proppants

Operators can choose from a wide range of proppants—ultrahigh performance for the most severe conditions to frac sand—for their completions.Often, we’re asked if there’s a measurable performance difference between resin-coated proppant and resin coated frac sand, especially where closure stress conditions are in the intermediate range between 4,000 psi and 8,000 psi.
During the 60 years since our company was founded, we have documented that resin-coated proppant offers superior performance and increased well net present value in these conditions. Resin coatings, which are continuously quality controlled and tested, are the optimal approach to managing the forces that can reduce
short-term and long-term hydrocarbon production.

High seam shale gas technology control

When a thin layer resin coated frac sand the oil and gas producing formation and occlusion layer or the minimum horizontal principal stress difference is small , the pressure to open the fracture height is very easy to enter the block layer , then the need to control the height of the crack extension . Performance by controlling the fracturing fluid displacement parameters and construction to achieve more reliable artificial barrier controlled seam high fracturing technology. The basic principle is added in front of the float type liquid or sunken directing agent , by bringing it into the crack front fluid , floating -directing agent and agent -oriented style sink floating and sinking were gathered at the top and bottom of the artificial cracks , formation of compacted low permeability artificial barrier to prevent cracks in pressure up / down spread , reaching a high slit control purposes . In order to make the two -directing agent can float and sink , usually carrying directing agent after injection of liquid short-term stop the pump , then normal fracturing operations . Control joints artificial barrier layer and mainly for the production of high-tech non-productive layers interbedded massive homogeneous formation ; inter- layer and gas production , the water layer without good barrier ; production layer and cover layer stress difference can not effectively control the vertical cracks to extend . Testing fracturing technology : Test fracturing fracturing , fracturing proppants also known as small-scale test , which is carried out a small-scale fracturing fracturing pressure to obtain and analyze the parameters of cracks . Including crack extension stress tests , fracture closure pressure test , micro- injection test.

Preparation of oil shale residue proppant

Preparation of oil shale residue proppant research hydraulic fracturing technology is an efficient technology of oil field production. The process is to use the high pressure pump group on the ground, the high viscosity of fracturing fluid to greatly exceed resin coated frac sand displacement of the absorptive capacity is injected into the borehole, at the bottom to suppress high pressure; When the pressure is greater than the wall near the formation stress and formation rock tensile strength, near the bottom of the formation of cracks; Continue to inject with natural gas fracturing sand fluid, crack extension forward and is filled with fracturing proppant, shut-in after fracture closure on the filling of proppant, finally have emerged near the bottom hole formation has certain geometry dimension and flow conductivity of fracture, is advantageous for the crude oil around faster into the bottom of the well, achieve the goal of production. Hydraulic fracturing proppant as the important filling medium, its performance directly affects the whole well production capacity. So, the research of high performance oil proppant for oilfield production is very necessary. Oil fracturing proppant * main points of natural quartz sand, artificial ceramsite proppant, resin coated proppant (i.e., resin coated proppant) three categories, the effect of coated sand and resin coated ceramsite proppant and points two kinds. Natural quartz sand because of the sphericity is bad, low intensity, but the lowest cost, so generally used in great quantities in the shallow well; Artificial ceramsite proppant due to its good sphericity, high strength, corrosion resistance is strong, as well as good conductivity, by a large number of used for medium and deep well fracturing..