WEYERHAEUSER <WY> SEES HIGHER 1987 EARNINGS Weyerhaeuser Co said it should have significant increases in earnings in 1987 and 1988 should be another very good year. Weyerhaeuser reported 1986 earnings of 276.7 mln dlrs, or 1.91 dlrs per share, on 5.65 billion dlrs in revenues. Anticipated improved cash flows will allow the company to invest and acquire much more aggressively than it has in the past few years, Weyerhaeuser also said. Weyerhaeuser, principally a lumber products company, said the forecast was made by the company's chief financial officer during a meeting of institutional investors in Tokyo. It also said its expects to see opportunities in the building products area, particularly in composite panels and in other engineered products directed toward specific, rather than commodity, end-use markets. But it said growth may be higher in added-value products, in financial services and in other diversified businesses. In addition, the company said rising product prices and demand for pulp and paper are reflected in all the major world markets, except in the case of some light-weighted paper grades where overcapacity remains a problem. Weyerhaeuser further stated that it has lowered its manufacturing cost structure and is obtaining significant productivity increases.