| 陆鸿,马世忠,卜德民,陈国宁.渤海湾盆地 L油田馆陶组下段沉积特征及有利储层评价[J].矿产勘查,2025,16(7):1686-1695 |
| 渤海湾盆地 L油田馆陶组下段沉积特征及有利储层评价 |
| Sedimentary characteristics and favorable reservoir evaluation of the lower section of Guantao Formation in L oilfield, Bohai Bay Basin |
| 投稿时间：2022-08-15 |
| DOI：10.20008/j.kckc.202507011 |
| 中文关键词: L油田 沉积微相 辫状河三角洲 储层评价 |
| 英文关键词: L oilfield sedimentary microfacies braided river delta reservoir evaluation |
| 基金项目:本文受中国海洋石油联合研究院科技课题(CCL2020RCPS0121XNN)资助。 |
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| 中文摘要: |
| 渤海湾盆地 L油田馆陶组下段为主要含油气目的层，勘探开发潜力巨大。目前油田核心区块已进入中高含水阶段，但储层非均质性强，油层水淹程度差异大，理清不同储层的成因、分布及潜力类型是下步开发调整挖潜的关键问题。本文以精细沉积学、测井地质学和储层地质学理论为依据，综合利用岩心、测井、实验室测试及油层水淹等资料，并结合区域沉积背景分析认为:馆陶组下段为辫状河三角洲沉积环境，将辫状河三角洲分流平原和三角洲前缘 2种亚相细分为 10种微相，并建立了相应的测井微相模式；完成 299口井测井微相精细识别，编制了 L84和 L108小层沉积微相平面图，进而综合储层物性、油层水淹程度等划分 4类潜力储层，并预测出 4类潜力储层发育区，研究成果为 L油田馆陶组下段下步开发调整挖潜提供了重要地质基础。 |
| 英文摘要: |
| The lower section of the Guantao Formation of the L oilfield in the Bohai Bay Basin is the main oiland gas-bearing destination layer, with great potential for exploration and development. At present, the core block of the oilfield has entered into the middle and high water-bearing stage, but the reservoir is non-homogeneous, andthe degree of reservoir flooding varies greatly, so it is a key issue to figure out the genesis, distribution and potentialtypes of different reservoirs for the next step of the development of the adjustment of tapping the potential. Based onthe theories of fine sedimentology, logging geology and reservoir geology, this paper comprehensively utilizes thedata of core, logging, laboratory test and reservoir flooding, and analyzes with the regional sedimentary backgroundthat the lower section of the Tiantao Formation is a braided river delta depositional environment, and subdivided thetwo subphases of the deltaic diversion plain of the braided river and the front edge of the delta into 10 kinds of mi-crophases and established the corresponding logging microphase model; and accomplished the microphase identifi-cation of 299 well logs, and the sedimentary microphase maps of L84 and L108 layers have been compiled, and thenthe reservoir properties and the degree of reservoir flooding have been integrated to classify 4 types of potential res-ervoirs, and the 4 types of potential reservoir development areas have been predicted, which has provided an impor-tant geologic foundation for the next development of the lower section of the Tiantao Formation of the L oilfield. |
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