It solves the problem of conventional waterflood in tight reservoir, and innovate a new concept of using fracturing waterflood to develop low permeability reservoir. It is supported by the integrated solution of geology and engineering, numerical simulation, and fracturing waterflood, to improve waterflood effect, effectively control the natural decline of the reservoir, and constantly consolidate and stabilize the production foundation.
Service capability
Optimize the water flooding plan according to the reservoir characteristics and the development situation. Increases the water injection pressure, water injection displacement and driving energy through the large-displacement electric-drive fracturing pump to realize the near-formation breakdown pressure water injection, increase the water driven pressure difference, improve the oil displacement effect of micro-pore throat. By doing this, the water swept area is increased, the water-drive efficiency is improved, and the issue of fast production decline and low recovery of tight oil reservoirs is improved The oil production increase is obvious.
Key technologies
3D Geo-mechanical Evaluation Technology for “Pressure Flooding and Water Injection（PFWI）”
Well and Layer Selection Technology Standards Establishment for PFWI
Geological-Engineering Integrated Design for PFWI
Affected Area Control And Enhancement Technology for PFWI
Service Performance
Jereh has successively implemented Micro-frac water injection services for more than
300 wells with an effectiveness ratio of 85% in Santang Lake and Lukeqin regions of CNPC Tuha Oilfield, CNPC Shengli Oilfield etc.
