Small well-spaced area development adjustment practices and awareness

The small well spacing block was encrypted and adjusted three times from 2009 to 2012, with the injection and extraction well spacing shortened from 250m to 106m, and the proportion of small well spacing wells accounting for 71.3% of the water drive, mainly distributed in Area A, Area B and Area C....

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Main Author: Wang Hongli
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/19/e3sconf_esat2022_01051.pdf
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author Wang Hongli
author_facet Wang Hongli
author_sort Wang Hongli
collection DOAJ
description The small well spacing block was encrypted and adjusted three times from 2009 to 2012, with the injection and extraction well spacing shortened from 250m to 106m, and the proportion of small well spacing wells accounting for 71.3% of the water drive, mainly distributed in Area A, Area B and Area C. The current well network density in the small well spacing area is 90.7 wells/Km2, the formation pressure is 9.12Mpa, there are more exploited layers vertically, the contradiction between layers and within layers is prominent, and there are large differences in oil formation mobilization, resulting in a rapid rise in water content. Through fine geological research, the focus is on improving the use of thin and poor oil formations, controlling the rate of water-bearing rise and restoring the energy of the formation, and constantly exploring effective methods for “controlling water-bearing and decreasing” during the period of exceptionally high water-bearing, so as to improve the development effect of the block and achieve the purpose of stabilizing oil and controlling water.
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spelling doaj.art-093f7f06e2b64971bf79bec39d9a804e2022-12-22T03:37:57ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013520105110.1051/e3sconf/202235201051e3sconf_esat2022_01051Small well-spaced area development adjustment practices and awarenessWang Hongli0The First Oil Production Plant of Daqing Oilfield Co., Ltd.The small well spacing block was encrypted and adjusted three times from 2009 to 2012, with the injection and extraction well spacing shortened from 250m to 106m, and the proportion of small well spacing wells accounting for 71.3% of the water drive, mainly distributed in Area A, Area B and Area C. The current well network density in the small well spacing area is 90.7 wells/Km2, the formation pressure is 9.12Mpa, there are more exploited layers vertically, the contradiction between layers and within layers is prominent, and there are large differences in oil formation mobilization, resulting in a rapid rise in water content. Through fine geological research, the focus is on improving the use of thin and poor oil formations, controlling the rate of water-bearing rise and restoring the energy of the formation, and constantly exploring effective methods for “controlling water-bearing and decreasing” during the period of exceptionally high water-bearing, so as to improve the development effect of the block and achieve the purpose of stabilizing oil and controlling water.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/19/e3sconf_esat2022_01051.pdfdense well networkinterlayer conflictsplanar adjustmentoil stabilization and water control
spellingShingle Wang Hongli
Small well-spaced area development adjustment practices and awareness
E3S Web of Conferences
dense well network
interlayer conflicts
planar adjustment
oil stabilization and water control
title Small well-spaced area development adjustment practices and awareness
title_full Small well-spaced area development adjustment practices and awareness
title_fullStr Small well-spaced area development adjustment practices and awareness
title_full_unstemmed Small well-spaced area development adjustment practices and awareness
title_short Small well-spaced area development adjustment practices and awareness
title_sort small well spaced area development adjustment practices and awareness
topic dense well network
interlayer conflicts
planar adjustment
oil stabilization and water control
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/19/e3sconf_esat2022_01051.pdf
work_keys_str_mv AT wanghongli smallwellspacedareadevelopmentadjustmentpracticesandawareness