Raising of gas-water contact is inevitable when developing the massive gas deposits. This results in the water-entry problems and decrease of daily gas production. Drilling horizontal sideholes in idling well stock and new horizontal wells allows maintaining the production at the design level. It is feasible to select the drilling direction of the horizontal section based on the seismic data, especially in complicated geological conditions.
The study revealed the dependence between the water-entry issues in the well stock and the seismic data. It also describes how the conditions of sedimentation affect the operation time without water-entry complications. Safe drilling zones are outlined. Based on the analysis, the idling well stock was successfully restored, and six new horizontal wells were drilled.
Gazovaya promyshlennost’ № 05 2020
Read in this issue:
GEOLOGY AND GAS FIELDS DEVELOPMENT
New technologies and equipment
Organization of production and management
Repair and diagnostics of main pipelines, compressor plants and pumping stations
DIGITALIZATION
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