2013年7月29日星期一

Proppant backflow nemesis --- Consolidation proppant can ask

Produced after  Hydraulic fracturing  proppant reflux can cause serious production problems, increased security risks and greatly reduced cost. For this problem, the Dagang Oilfield downhole drilling hospital research studies that may have been fully completed consolidation proppant indoor studies, the product has come out with good performance.

Prevent backflow of proppant There are many ways in which the resin-coated proppant is a more common approach. The proppant in a foreign country in the late 1970s, and was successfully put into application, received extensive attention, after decades of development, has reached a higher level. Domestic control proppant backflow in its infancy, Dagang drilling hospital aim at the world forefront of technology, can begin developing pre-mixed, safe storage, simplifying the construction process and the good performance and compatibility with the fracturing fluid can be consolidated proppant.

Developed by the drilling hospital  Proppant  proppant and general appearance is no different, to meet all common proppant performance requirements. It is the common difference between the proppant, it can maintain high temperatures in the formation conductivity in the case of consolidation together, sealing the seam to prevent proppant reflux. Compared with common proppant, the  ceramic proppant  has the following properties: ① has a better crush resistance, corrosion resistance, wherein the etching rate of only tenths of a percentage point; ② cured fracturing fluid environment of high flow resistance properties of proppants up to 11 cm / sec; ③ closure pressure of 50 MPa, may consolidation proppant conductivity of 117 square microns · cm.

The successful application of the product will reduce the sand buried reservoir and pump stuck and other production problems and improve the fracturing effect, extend the validity of fracturing operations, reduce security risks, the effective protection of the reservoir.

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