Well Ziyang 2 Was Successfully Drilled And The Horizontal Well Was Sidetracked To 6,666 Meters

Good news came from the construction site of the Ziyang 2 well project of Sinopec Southwest Oil and Gas Branch's first-level risk exploration well, which was drilled by the 70823 well team of the Sinopec Southwest Petroleum Engineering Company Drilling Branch No. 1, and the well sidetracked horizontally to 6,666 meters successfully. After drilling was completed, the entire well achieved 17 drilling technical indicators, with the highest coring yield and good exploration prospects.

"Well Ziyang 2 was originally designed as a vertical well. Because it encountered good oil and gas indications when drilling in the Qiongzhusi shale layer, the Southwest Oil and Gas Branch reported to the group company for approval and decided to change the design and carry out sidetracking horizontal well construction." Huang Senqing, the team leader, said .
Judging from the drilling situation, the gas layer below Well Ziyang 2 is thick and large, and the natural gas production is considerable. However, this is the first time for Sinopec to carry out horizontal construction in the Qiongzhusi section of the Ziyang block. There is no experience to refer to, and the construction is very difficult and risky.
In order to meet the urgent requirement of Sinopec Southwest Oil and Gas Branch to further understand the oil and gas burial conditions of Well Ziyang 2, the 70823 drilling team boldly used rotary guide drilling tool assembly drilling and ensured a smooth trajectory and a 100% drilling rate of the target layer in the horizontal section, with pure It has 5 records including the longest drilling time of 136.97 hours, the most footage drilled in one trip, the highest average mechanical drilling speed of 11.90 meters per hour, the deepest drilling depth, and the shortest construction period of 30.71 days, creating a record for Qiongzhusi in Ziyang area. The construction of horizontal wells in this section was the first of its kind, providing successful experience for efficient exploration in this area.

"The continuous improvement of drilling footage is our responsibility and mission to keep in mind the entrustment and strengthen the protection of national energy security." As a participant in the exploration and development of Ziyang 2 Well, Huang Senqing has a lot of feelings.
He said that Qiongzhusi belongs to the shale layer, and oil and gas layers as thick as those shown in Well Ziyang 2 are very rare. As the Spring Festival is approaching, there are still 45 cadres and employees at the 70823 drilling site of Drilling Branch No. 1 who stick to their posts. They use practical actions to present a special New Year gift to the company.
It is reported that based on the exploration results of Ziyang 2 well, Sinopec Southwest Oil and Gas Branch plans to arrange multiple development wells around the current well site. The "iron army" of Sinopec Southwest Petroleum Engineering is working hard to contribute to the local economy and society with a high-spirited attitude. Development is given "green wings" to take off.