As a result of the widespread use of English in science and scholarship, there is an increasing need of reference tools which provide accurate information to non-nativeespecially junior-researchers on the correct use of lexico-grammatical patterns of nontechnical words when writing their scientific papers in English and on the conventionalized phraseological characteristics of the genre. Our aim is to present SciE-Lex, a lexical database which provides information to help Spanish researchers to write research papers in English accurately. Whereas there are specialized monolingual and bilingual dictionaries with specific terminological information, there is a shortage of reference tools supplying information on the correct use of syntactic and collocational patterns of nontechnical words in the scientific register and on the conventionalized phraseological characteristics of the genre. Based on the analysis of a 3+ million word corpus of scientific English, in its first stage, SciE-Lex displays information on: word class, morphological variants, equivalent(s) in Spanish, patterns of occurrence, list of collocations, examples of real use, and notes to clarify usage. In a second stage we plan to include lexical bundles, compositional recurrent sequences of words, since several studies have confirmed the difficulties that learners have with them. Further research will provide SciE-Lex with information about the distribution of lexical bundles across the different sections and/or moves of the academic research article as well as their function in discourse.