PRESENT STATE AND DEVELOPING TREND OF HORIZONTAL WELL COMPLETION TECHNOLOGY IN SHENGLI OILFIELD

In the past, perforating completion technology is the only horizontal well completion method used in Shengli Oilfield, however, remarkable improvement has been made in recent years. A set of comprehensive completion technologies for various reservoirs have been developed, and these technologies can reserve reservoirs, minimize the secondary damage to reservoir, improve productivity and enhance recovery. Meanwhile, further studies and tests have been conducted on the advanced completion technologies for short radius sidetracking horizontal well, multilateral well, and extended reach well. Deficiencies are also mentioned, and it points out the direction for completion technology development in Shengli, i.e., formation protecting, horizontal interval and perforating length optimization, selection of sand controlling method and technique, etc.