四川盆地东吴期泸州古隆起与茅口组碳酸盐岩缝洞储层分布

姜自然; 陆正元; 吕宗刚; 杨坚

doi:10.11781/sysydz201404411

四川盆地东吴期泸州古隆起与茅口组碳酸盐岩缝洞储层分布

doi: 10.11781/sysydz201404411

1.
油气藏地质及开发工程国家重点实验室(成都理工大学), 成都 610059
2. 中国石油东方地球物理公司研究院, 河北涿州 072750
3. 中国石油西南油气田分公司蜀南气矿, 四川泸州 646001

基金项目: 四川省重点科技项目（07JY029-144）资助。

详细信息

作者简介:
姜自然（1987—），男，硕士，工程师，从事构造地质、石油地质及油气成藏动力学研究。E-mail: jiangziran@vip.qq.com。

中图分类号: TE122.2⁺4
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出版历程
- 收稿日期: 2014-02-20
- 修回日期: 2014-06-26
- 刊出日期: 2014-07-28

Distribution of carbonate fractured and vuggy reservoirs of Maokou Formation in Luzhou Paleo-uplift during Dongwu Movement, Sichuan Basin

1.
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan 610059, China
2. BGP Geophysical Research Institute, CNPC, Zhuozhou, Hebei 072750, China
3. Shunan Gas Field of Southwest Oilfield Branch Company, PetroChina, Luzhou, Sichuan 646001, China

摘要

摘要: 中二叠世末的东吴运动是中国华南地区二叠纪影响较大的一次地壳运动。东吴运动在四川盆地内部发育了泸州古隆起，导致了茅口组不同程度的抬升剥蚀和岩溶储层的形成。利用大量钻孔资料编制了泸州古隆起上二叠统沉积前的古地质图，恢复了东吴期泸州古隆起剥蚀后的古地貌和古隆起抬升初期的古构造。资料揭示区域上茅口组剥蚀最严重的区域也是古隆起抬升的中心，东吴期泸州古隆起呈北北东向展布，北东翼宽缓，西南翼陡峭，古隆起核部茅口组具剥蚀夷平特征。泸州古隆起北东翼岩溶缓坡及其相邻的核部茅口组剥蚀夷平严重，岩溶缝洞层段保存较少；西南翼岩溶陡坡及其邻近的古隆起核部一侧为溶蚀强度大、缝洞层段保留较多的区块，是茅口组缝洞储层发育的最有利区。
- 泸州古隆起 /
- 东吴运动 /
- 茅口组 /
- 中二叠统 /
- 缝洞储层 /
- 四川盆地
Abstract: The Dongwu Movement which took place at the end of the middle Permian was an important crust movement in South China during Permian. The Luzhou Paleo-uplift was formed during the movement, which led to the uplift and erosion of the Maokou Formation and the formation of paleokarst reservoirs. Based on borehole data, a paleo-geological map of the Luzhou Paleo-uplift before the late Permian was described, and the paleo-geomorphology after erosion as well as the paleo-structure at the beginning of uplift were reconstructed. It was concluded that the Maokou Formation was seriously eroded in the center of the Luzhou Paleo-uplift. The Luzhou Paleo-uplift was in NNE direction with gentle limb in the northeast and steep limb in the southwest. The core of the paleo-uplift was featured by erosion plain. The Maokou Formation was seriously eroded and the paleokarst reservoirs were partially preserved on the gentle limb in the northeast and the adjacent core part of the uplift. The Maokou Formation was seriously caved and the paleokarst reservoirs were saved on the steep limb in the south-west and the adjacent core part of the uplift, where the most favorable areas of fractured and vuggy reservoirs in the Maokou Formation were located.
- Luzhou Paleo-uplift /
- Dongwu Movement /
- Maokou Formation /
- middle Permian /
- fractured and vuggy reservoir /
- Sichuan Basin

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