China's shale gas exploration finds the deepest horizontal well buried

Abstract My exploration personnel recently drilled a deep high-yield shale gas pre-exploration well in the northern part of Guizhou, Ding Page 2HF. It is the deepest shale gas horizontal well buried in China and has achieved a major breakthrough in deep shale gas exploration in China. Tested, the well day
Recently, the exploration personnel drilled a deep high-yield shale gas pre-exploration well in the northern part of Guizhou, Ding Page 2HF, which is the deepest shale gas horizontal well buried in China, and achieved a major breakthrough in deep shale gas exploration in China.

After testing, the well produces 43,000 cubic meters of gas per day, and the daily gas production can reach 105,000 cubic meters. The oil pressure and gas volume are relatively stable. The pre-exploration well is located in Xishui County, Guizhou Province. It is the Lintan Field-Dingshan North-eastward tectonic belt in the southeastern Sichuan Basin. The completion depth is 5451.66 meters, the vertical depth is 4441.43 meters, and the horizontal section length is 1034.23 meters.

According to the person in charge of the South Exploration Branch of China Petroleum & Chemical Corporation, the construction unit, this is the deepest shale gas horizontal well buried in China. It is a new shale gas exploration and development block discovered after the Chongqing Fuling Jiaoshi Dam. . After nearly 5 months of staged fracturing, anti-spray test, cementing and discharge, the drilling team overcomes the construction difficulties of high pump pressure, high pressure, deep drilling and multi-layer casing at home and abroad. Optimized design, initially formed a deep shale gas segmentation fracturing supporting technology, and created the first in the Sinopec industry oil and gas exploration technical indicators in casing cementing and fracturing gas testing.

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