MULTI-LATERAL WELL DRILLING TECHNOLOGY AND ITS FIELD PRACTICE

To improve the overall benefits of exploration and development, research program on multi-lateral well drilling technology, as well as the RD on the specialized tools has been carried out in Shengli Oilfield. The drilling engineering plan, steering drilling and MWD technology, directional tie-back and sidetracking, drilling fluid program and plastic cementing, etc., were focused and described in detail. Multi-lateral well drilling practices have been performed in 2 wells, and remarkable improvement on oil production has been noticed. Moreover, by drilling these two wells, a set of multi-lateral drilling technologies, which suit for the present drilling technology standard and equipment state in Shengli have been found.