The Artificial Island of Nanpu No. 3 in Jidong Oilfield Set a New Domestic Single Island Drilling Record

The Artificial Island of Nanpu No. 3 in Jidong Oilfield Set a New Domestic Single Island Drilling Record

On May 6, the factory drilling of 5 Wells in the L well group in the Nanpu 1-5 area of Nanpu No. 3 artificial island of Jidong Oilfield was successfully completed, so far, the number of completed Wells on the island reached 248, refreshing the domestic single island body drilling record.

Nanpu No. 3 artificial island is built by blowing sand and covers an area of 200 mu. The construction started in May 2008 and was completed and put into operation in July 2009. It is an integral gas lift oil production platform with the largest area, the largest number of oil Wells and the highest oil and gas production in China.

The 5 Wells of the L well group in Nanpu 1-5 area, which belong to the middle and deep production construction project, are the key production construction projects of Jidong Oilfield in 2024. The project deployed a total of 10 development Wells, with an average well depth of 3053 meters, and adopted industrial drilling method for batch construction. As the area with the highest wellhead density in Jidong Oilfield, the No. 3 artificial island has many high risks such as drilling well collision, overflow, leakage and blowout.

In view of the drilling technology bottleneck of Nanpu No. 3 artificial island, Jidong Oilfield actively carried out technical research, and formed a large platform dense cluster drilling + "see the needle" anti-collision and blockage, leakage and spray zone safety drilling technology, which ensured the smooth drilling construction. Upgrade well control management, strengthen well control acceptance work, based on primary well control, do a good job of secondary well control, do a good job of water injection well pressure monitoring, timely coordinate the surrounding water injection well shutdown pressure relief work. Fine production organization, the selection of strong technical strength and experienced drilling team, effective use of site space, reasonable arrangement of drilling equipment, curing equipment, etc., in the adjacent injection and production Wells to do well wellhead safety protection. Give full play to the advantages of industrial drilling process and mass, improve the repeated utilization rate of drilling fluid, reduce the "waiting for solidification" of cementing, etc., and realize the overall speed of the well group. Strengthen communication and coordination, organize production materials in advance, and ensure continuous construction of key links. According to reports, the average depth of the five completed Wells in the L well group is 3028 meters, and the average well construction period is 29.19 days, which is nearly 6 days shorter than the average plan, and the factory drilling speed is remarkable.