Aoton Industrial Operation of Tight Gas Cluster Wells

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Overview

Anton Drilling officially entered South Total Block of Sulige Gas Field in 2016, and two drilling teams participated in the construction.The performance of the drilling team was among the best in the block, with the annual footage exceeding 40,000 meters, and several Wells continuously broke the construction record in the block.

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1. In the second opening, the variable diameter centralizer is used to solve the problem that the natural inclination of the extension group is fast and frequent orientation, which seriously affects the machine speed and time.

2. Use a high quality composite bit to avoid early wear.

3. The application of oscillating screw reduces the support pressure problem of sliding drilling.

4. Drill to the leak-prone formation of Yanchang formation, add the plug in advance, prevent permeability loss and reduce non-production time.

5. In view of the irregular diameter of the collapsed Wells in Zhilu Formationand Yan'an Formation, the electrical test resistance was encountered, and the displacement was moderately reduced during drilling. When the electrical test started, the well section was drilled with pad slurry, and the short cycle of thick slurry carrying sand, and then the well section was dried again to reduce the possibility of electrical test resistance.

1.Solved the resistance problem of cluster directional well electrical test, and the one-time success rate of electrical test was 100%.

2.The problem of supporting pressure in the directional well with five-stage system was solved, and the compound drilling rate reached 90%.

3. Completion string length adjustment was a one-time success. Develop block SOP: realize programmatic, factory efficient operation.

4. Suitable for tight gas slave well development well pattern.

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