Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea
Most multilayer sandstone reservoirs in the Bohai Sea have already entered the middle or high water cut production stage with large amounts of remaining oil being scattered distributed. Therefore, there is an urgent need to find a suitable countermeasure to reduce water cut and increase oil recovery...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6671098 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832554985517219840 |
|---|---|
| author | Gaocheng Feng Yuhui Zhou Weiying Yao Lingtong Liu Zhao Feng Yanjun Yi Yi Feng |
| author_facet | Gaocheng Feng Yuhui Zhou Weiying Yao Lingtong Liu Zhao Feng Yanjun Yi Yi Feng |
| author_sort | Gaocheng Feng |
| collection | DOAJ |
| description | Most multilayer sandstone reservoirs in the Bohai Sea have already entered the middle or high water cut production stage with large amounts of remaining oil being scattered distributed. Therefore, there is an urgent need to find a suitable countermeasure to reduce water cut and increase oil recovery. In this study, taking the narrow-channel reservoirs in the M oilfield as an example, we qualitatively described the sand body scale and the contact relationships between different sand bodies, in addition to carefully analyzing the material base and remaining oil distribution characteristics. Accordingly, we proposed a countermeasure based on the injection-production structural adjustment to reduce water cut and increase oil recovery from high water cut, narrow-channel reservoirs. Herein, three optimization strategies were developed based on the proposed development mode: a seepage field optimization strategy was developed based on the quantified injection-production index; a well pattern optimization strategy for narrow-channel reservoirs was developed to overcome the production energy refueling problem; an injection-production measure optimization strategy was developed to tap the different types of remaining oil. Additionally, the well pattern optimization and injection-production optimization strategies were integrated to optimize and adjust the seepage field system. The findings reported herein this paper help understand the development of similar offshore oilfields with a high water cut. |
| format | Article |
| id | doaj-art-179cf94615cd4947af97fa16692da7ad |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-179cf94615cd4947af97fa16692da7ad2025-02-03T05:49:51ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66710986671098Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai SeaGaocheng Feng0Yuhui Zhou1Weiying Yao2Lingtong Liu3Zhao Feng4Yanjun Yi5Yi Feng6CNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaYangtze University, Wuhan, Hubei, 430100, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin, Tanggu 300452, ChinaMost multilayer sandstone reservoirs in the Bohai Sea have already entered the middle or high water cut production stage with large amounts of remaining oil being scattered distributed. Therefore, there is an urgent need to find a suitable countermeasure to reduce water cut and increase oil recovery. In this study, taking the narrow-channel reservoirs in the M oilfield as an example, we qualitatively described the sand body scale and the contact relationships between different sand bodies, in addition to carefully analyzing the material base and remaining oil distribution characteristics. Accordingly, we proposed a countermeasure based on the injection-production structural adjustment to reduce water cut and increase oil recovery from high water cut, narrow-channel reservoirs. Herein, three optimization strategies were developed based on the proposed development mode: a seepage field optimization strategy was developed based on the quantified injection-production index; a well pattern optimization strategy for narrow-channel reservoirs was developed to overcome the production energy refueling problem; an injection-production measure optimization strategy was developed to tap the different types of remaining oil. Additionally, the well pattern optimization and injection-production optimization strategies were integrated to optimize and adjust the seepage field system. The findings reported herein this paper help understand the development of similar offshore oilfields with a high water cut.http://dx.doi.org/10.1155/2021/6671098 |
| spellingShingle | Gaocheng Feng Yuhui Zhou Weiying Yao Lingtong Liu Zhao Feng Yanjun Yi Yi Feng Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea Geofluids |
| title | Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea |
| title_full | Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea |
| title_fullStr | Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea |
| title_full_unstemmed | Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea |
| title_short | Countermeasures to Decrease Water Cut and Increase Oil Recovery from High Water Cut, Narrow-Channel Reservoirs in Bohai Sea |
| title_sort | countermeasures to decrease water cut and increase oil recovery from high water cut narrow channel reservoirs in bohai sea |
| url | http://dx.doi.org/10.1155/2021/6671098 |
| work_keys_str_mv | AT gaochengfeng countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT yuhuizhou countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT weiyingyao countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT lingtongliu countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT zhaofeng countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT yanjunyi countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea AT yifeng countermeasurestodecreasewatercutandincreaseoilrecoveryfromhighwatercutnarrowchannelreservoirsinbohaisea |