The fifth floor of the Ma Fifth floor in the exploration area of ​​Fuxian County in North China regained industrial airflow

Sinopec News Network reported on September 13, the fifth layer of Well Niu 101 in the exploration evaluation of Fuxian Exploration Area adopted the alternate injection of variable mucic acid and the temporary plugging acid fracturing technology
.

The Lower Paleozoic carbonate gas reservoir in the Fuxian exploration area in the southeast of the Yishan Slope of the Ordos Basin is a key exploration evaluation area of ​​the North China Oil and Gas Company.
Well Niu 101 is located in the northeast of the Fuxian exploration area.
There are natural cracks in the 51 and Mawu layers, and the development of natural cracks is a favorable factor for high production in this area.
The technical staff of the Academy of Engineering designed the idea of ​​alternately injecting acid with variable viscosity acid to increase the acid etched cracks by non-uniform etching of acids with different viscosities Diversion capacity; At the same time, in order to ensure that all layers can be fully transformed, the supporting temporary blocking ball temporarily blocks the steering to ensure balanced transformation
.

The industrial gas flow obtained from the fifth layer of Ma 5 in Well Niu 101 confirms the adaptability of the process to this type of reservoir and further proves that the Lower Paleozoic in the Fuxian exploration area has good gas-bearing properties
.