Wednesday, Schlumberger Ltd., the world's largest oil-field-services firm by market capitalization, said its2008 earnings will miss analysts'estimates as oil and gas production slows world-wide. 周三,全球市值最大的油田服务公司斯伦贝谢(SchlumbergerLtd。)称,2008年的收益将低于分析师的预期,原因是全球油气生产放缓。