首页|海上多层砂岩油藏油井压裂充填时机研究与实践——以渤海L油田为例

海上多层砂岩油藏油井压裂充填时机研究与实践——以渤海L油田为例

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渤海多层砂岩油藏L油田目前已进入中高含水期,调整油井压裂充填后的含水率差异较大,部分油井含水率高、日产油达不到设计要求,对油田调整井的部署影响较大.利用多层数模机理,在不同含水时期分别对油井全井各层压裂充填、仅对主力层压裂充填以及仅对非主力层压裂充填3 种压裂充填方式进行效果分析,研究表明,当主力层强水淹厚度达到一定比例时,对主力层压裂充填会导致水窜严重,影响产油量,而对非主力层进行压裂充填,有利于控制油井含水率和增加产油量,为油田调整井射孔压裂充填开发提供依据.
Research and practice of fracturing-packing time in offshore multi-layer sandstone reservoirs-a case study of Bohai L Oilfield
The multi-layer sandstone reservoir of Bohai L Oilfield has entered the middle-high water cut stage.The difference of water cut in the production process of adjusted wells after fracturing-packing is large,some wells have high water cut,and the daily oil production can not meet the design requirements,which has a great influence on the deployment in adjustment wells.By using the multi-layer digital model mechanism,the effects of 3 kinds of fracturing-packing methods,in all layers of the whole well,the frac-turing-packing in only the principal producing and only the non-principal producing layers are analyzed respectively in different water-cut periods.The results show that when the strong water flooding thickness of the principal producing layers reaches a certain proportion,the fracturing-packing of the principal pro-ducing layers will cause water channeling and seriously affect production,while the fracturing-packing of non-principal producing layers is beneficial for controlling water cut of oil wells and increasing production,which provides a basis for the development of fracturing-packing in adjustment wells.

principal producing layersnon-principal producing layersfracturing-packingwater cut

李媛婷、赵靖康、侯亚伟、申春生、肖波

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中海石油(中国)有限公司天津分公司渤海石油研究院,天津 300459

主力层 非主力层 压裂充填 含水率

中海石油(中国)有限公司综合科研项目

KJGG2021-0501

2024

石油地质与工程
中国石化河南油田分公司

石油地质与工程

影响因子:0.453
ISSN:1673-8217
年,卷(期):2024.38(5)