Physical Simulation test Study of Steam-Assisted Gravity Drainage with Combination of Straight Well and Horizontal Well
On the basis of geology and development characteristics of heavy oil reservoirs and research requirements of development style conversion after steam huff and puff in Liaohe Oilfield, similarity criterion of high pressure thermal scale modeling is summarized and analyzed. Similarity criterion of linkage of steam huff and puff, steam flooding and steam-assisted gravity drainage is established. A large scale multifunction high temperature high pressure thermal 3-D scale physical simulation system and a 2-D visual scale model are constructed. Tolerant temperature of the 3-D model is up to 350℃, tolerant pressure is 15MPa. The model consists mainly of well pattern model, burden pressure system, injection system, recovery system, data acquisition and treatment system. Dimension of the well pattern model is 500mm×500mm×560mm. The function is designed to study effects of reservoir geological parameters, injection-production parameters and different recovery methods on reservoir recovery result. Super heavy oil reservoir of Du 84 block in Shuguang oilfield is chosen as simulation object. Physical simulation test study of steam-assisted gravity drainage is conducted with combination of straight well and horizontal well. By way of real-time recording 3-D temperature field and key point pressure variation in the course of each test as well as oil production, water production, displacement efficiency, production factor, interval recovery factor, oil-gas ratio etc of every stage, recovery mechanism of steam-assisted gravity drainage with combination of straight well and horizontal well is analyzed, characteristics of different recovery stages are explored.
Heavy oil reservoir Similarity criterion High temperature high pressure 3-D scale Physical model Physical simulation Steam huff and puff Steam-assisted gravity drainage
Zhang Fangli Ma Desheng Liu Qicheng Zhang Yong
Exploration and Development Institute of Liaohe Oil field Company, Petrochina
国际会议
首届世界重油大会(The Technical Sessions of the First World Heavy Oil Conference)
北京
英文
145-153
2006-11-12（万方平台首次上网日期，不代表论文的发表时间）