Shi115 block of Haojia oilfield is deposited by slump turbidite sand body and some braided channels, affected by sedimentary mode, reservoir physical properties and injection production well pattern. At present, the o...Shi115 block of Haojia oilfield is deposited by slump turbidite sand body and some braided channels, affected by sedimentary mode, reservoir physical properties and injection production well pattern. At present, the oil production rate and recovery degree of the block are low. Based on the analysis of the factors affecting the oil recovery of the block, put forward specific countermeasures, mainly rely on local renewal, injection transfer, injection increase, profile control and other means to improve well pattern and improve reserve control, recover formation energy, improve oil well productivity. In terms of process matching, the effective water injection can be improved by adding acidizing, increasing injection and profile control technology, so as to ensure the long-term effectiveness of the improved injection production well pattern, expand water drive sweep, realize the balanced displacement of remaining oil and improve block recovery.展开更多
文摘Shi115 block of Haojia oilfield is deposited by slump turbidite sand body and some braided channels, affected by sedimentary mode, reservoir physical properties and injection production well pattern. At present, the oil production rate and recovery degree of the block are low. Based on the analysis of the factors affecting the oil recovery of the block, put forward specific countermeasures, mainly rely on local renewal, injection transfer, injection increase, profile control and other means to improve well pattern and improve reserve control, recover formation energy, improve oil well productivity. In terms of process matching, the effective water injection can be improved by adding acidizing, increasing injection and profile control technology, so as to ensure the long-term effectiveness of the improved injection production well pattern, expand water drive sweep, realize the balanced displacement of remaining oil and improve block recovery.
