Coatings (paint) level of zinc stearate, with its ultra-fine, transparent, good dispersibility, easy sanding, fast drying, defoaming easy, transparent clear, good resistance to thermal denaturation characteristics.
Unconsolidatedsandreservoir always be buried not deep, because of it's low cementation and highcontent of clayandsundry, theunconsolidatedrock is easy tosandingduringexploitation.