To carried on the soda-wash tower in the open-air scene which three sections of groups welded to carry on the before the load some preparatory work design and the computation,and has carried on the induction summary to the load process operation,the guarantee load security techinical measure was proposed.

This paper introduces the preparatory work before the installation of CIS combined electrical apparatus, and expounds the procedures of the installation of CIS combined electrical apparatus.

Therefore, the author introduced pre-drilling preparation work and 4 kinds of zone sticking methods, which were stratum reflected wave group tracing method, lithology standard horizon and reference horizon correlation method, sedimentary rock cycle correlation method, and well logging curve feature correlation method, summarized and prov.

Technical preparation work is very important, and it is a precondition of ensuring project progress and quality, decreasing project cost and offering good field HSE management.