Open AccessStudy and Application of quickly putting into Production Technology without well killing in Shale Oil
Author(s) -
Panfeng Liu,
Junheng Wang,
Daqi Fu,
Qun Guo,
Shiju Ren
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/687/1/012084
Subject(s) - petroleum engineering , oil shale , lift (data mining) , oil production , environmental science , gas lift , shale oil , oil field , artificial lift , geology , engineering , waste management , computer science , data mining
Low-producing shale oil wells are put into production after reservoir modification. But the dynamic fluid level drops significantly in the initial stage, which result in a reduction in sand carrying capacity and a significant reduction in pumping efficiency. It also results in a significant shortening of the pumping inspection cycle. After the checking pump operation with conventional killing well, wells were found that the capacity recovery period was long. And the period of operating under pressure was long and costly. Checking pump cost increased significantly. Based on the situation of low-producing shale oil wells in the DA oilfield, by optimizing the downhole temporary plugging of the tubular column and simulating the timing of down pump, a quickly put into production technology of rod pump in shale oil is proposed. The technology can achieve downhole temporary plugging fast before checking pump, and lift out or lower pump without killing well. The field application shows that this technology can reduce the contamination of tight reservoirs result by killing fluid and significantly shorten the production recovery cycle.