Xinyuan 304 well drilling site. Photo by Li Tao.
On the morning of February 3, the 90029 drilling team of the Bazhou Branch of the Western Drilling Project of China National Petroleum Group came with good news: the Xinyuan 304 well drilled in Shaya County was 333 in the second openingDuring the construction of the 4mm wellbore, a drill bit was used to drill 3,895 meters in one trip, setting a new drilling record in this block again.
Drilling workers brave the cold to operate pneumatic winches to lift drill pipes. Photo by Li Tao.
In the same block, more than 3,800 meters are drilled in one trip, and two to three drill bits are generally replaced. Lang Xiaodong, platform manager of the 90029 drilling team of the Bazhou Branch of Western Drilling, explained that the Xinyuan 304 well was rapidly drilled through the combination of artificial polycrystalline diamond composite bit + high-torque screw + drilling and measurement, and the mechanical ROP reached 15 per hour8 meters, one drill through the Permian and Carboniferous gypsum salt rocks, drilled to a depth of 5,096 meters, and created a block of 3334 mm borehole drill footage record.
The Tarim Basin is rich in oil and gas resources and is an important development base for drilling in southern Xinjiang. After winning the bid for Xinyuan 304 well, the 90029 drilling team immediately organized the relocation and completed the relocation work in only 8 days, which was 2 days shorter than the relocation time of the 90 drilling rig in the block. "The Xinyuan block is full of challenges due to its complex geology, high well control risk, difficult drilling, easy leakage, easy blowout, easy collapse, and strict construction standards and technical requirements. 90029 drilling team engineer Ji Renta said.
The drilling team employees are cooperating with the drilling operation. Photo by Li Tao.
Bazhou Branch sent technical experts to the well to grasp the drilling construction dynamics at any time through daily analysis, weekly comparison and monthly summary. At the same time, combined with the construction experience of adjacent wells, the construction plan was optimized, the process was controlled to the point, the responsibility was implemented to the people, and the geological engineering double post was vigorously promoted, which solved the problem of high well control risk and difficult drilling construction.
The 90029 drilling team drew on the drilling experience of Well Xiongtan 1 completed in the Fuman block and formulated the paper drilling plan of Well Xinyuan 304. Lang Xiaodong said that in the actual drilling process, adhere to the daily and paper drilling plan to compare the progress difference, through torque, screw pressure difference, mechanical specific energy, bit depth of cut and other analysis of downhole conditions, to promote drilling speed.
At present, the 90029 drilling team is carrying out three construction preparations, and the whole team is making every effort to implement the deployment of "excellent and fast drilling and template standardization", aiming at the goal of "improving quality and efficiency", and striving to create new technical indicators in the block.
*: Tianshan Net).
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