Despite the slump in global oil prices, Schlumberger's $14.8 billion acquisition of oil equipment manufacturer Cameron International is a good deal for both parties, Intervale Capital co-founder Charles Cherington said Wednesday.

"This is a merger of two great companies that can survive any downturn. Schlumberger needs broader exposure to differentiated subsidy products; Cameron provides that," Cherington said in a CNBC "Squawk Box" interview.