Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
基于多期构造应力场的潜山储层裂缝特征参数预测. |
| Alternate Title: |
Prediction of Fracture Characteristic Parameters of Buried Hill Reservoir Based on Multi-stage Tectonic Stress Field. |
| Συγγραφείς: |
李晓蓉1 xiaorongli@cup.edu.cn, 张雅杰2, 马思佳3, 张金发3, 林海4, 冯永存1 |
| Πηγή: |
Science Technology & Engineering. 2026, Vol. 26 Issue 24, p10384-10393. 10p. |
| Θεματικοί όροι: |
*Fracture mechanics, *Neotectonics, *Petroleum prospecting |
| Γεωγραφικοί όροι: |
Bo Hai (China) |
| Abstract (English): |
The potential of oil and gas exploration and development in buried hill reservoir is huge, but the spatial and temporal distribution of fractures has strong complexity and non-uniformity, and accurate prediction of fracture characterization parameters is crucial for all aspects of the whole life cycle of oil and gas exploration and development. To this end, a coupled geomechanical model was established based on multivariate geologic data to invert the distribution of the stress field during the active period of each tectonic movement in the buried hill reservoir in the Bohai Sea, for example. Based on the theory that cracks were generated in the active period of multi-phase tectonic movement, the superposition analysis of crack parameters in multi-phase tectonic stress field was carried out to realize the quantitative prediction of characteristic parameters of cracks in the buried hill reservoir of the Bohai Sea block, and the accuracy of the prediction results of crack openings and densities was verified by core description and imaging logging. The results show that reservoir fracture development is jointly influenced by folds and faults, and the high fracture line density areas are mainly concentrated in folds, faults and their combination with nearby strata. The fracture openings in the dorsal axial part are higher than those in the flanks, and the openings in the areas where faults are combined with the surrounding strata are lower, and the predicted fracture density and fracture openings have an error of 11. 74% and 9. 69%, respectively. The research results provide a new idea for quantitative prediction of the characteristic parameters of cracks in the buried hill reservoir, and provide geological basis and engineering guidance for rational exploration and development of the buried hill reservoir. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
潜山储层油气勘探开发潜力巨大, 但裂缝时空分布具有较强复杂性和非均匀性, 精准预测裂缝特征参数对于潜山油气 勘探与开发全生命周期各个环节至关重要。为此, 以渤海某潜山储层为例, 基于多源地质-工程数据, 建立地质力学耦合模型, 反 演各个构造运动活跃期应力场的分布状态。以裂缝产生于多期构造运动活跃期为理论基础, 进行多期构造应力场裂缝参数叠合 分析, 实现渤海区块潜山储层裂缝特征参数的定量预测, 进一步通过岩心描述及成像测井验证裂缝开度与裂缝密度预测结果的 准确性。结果显示, 储层裂缝发育受褶皱和断层共同影响, 裂缝线密度高值区主要集中在褶皱、断层及其与附近地层的结合处; 背斜轴部的裂缝开度高于翼部, 而断层与周围地层结合区域的开度较低; 预测的裂缝密度与裂缝开度误差分别为 11. 74% 、 9. 69%。研究成果为定量预测潜山储层裂缝特征参数提供一条新思路, 为合理勘探开发潜山储层提供地质依据和工程指导。 [ABSTRACT FROM AUTHOR] |
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