| 四川盆地中部上三叠统排水找气可行性论证 |
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| 引用本文： | 沈伟成,陆正元,李辉,龚昌明,彭轩.四川盆地中部上三叠统排水找气可行性论证[J].桂林工学院学报,2009,29(1). |
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| 作者姓名： | 沈伟成 陆正元 李辉 龚昌明 彭轩 |
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| 作者单位： | 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. 中国石油西南油气田分公司川中油气矿区,四川,遂宁,629001 |
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| 摘 要： | 四川盆地中部上三叠统砂岩储层裂缝系统之间在开发动态上表现出相互分隔性，不存在连通范围较大的边底水体，其自生自储的成藏特征决定了裂缝系统中必然气水共存。测试产水井是由于井孔储层位处裂缝系统的含水部位，产水能量主要依靠水体上方的天然气膨胀驱动。低产量排水过程将使裂缝系统中的气水界面按照排水找气理论模式缓慢下降，而高产量排水将使水体上方高流度的天然气尽早突破水体窜入井底产出。建议对川中上三叠统水井开展连续强排水，加大井底与上方天然气的压力差，以较快实现水井变成气水同产井的目的。
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| 关 键 词： | 排水找气 裂缝系统 上三叠统 四川盆地中部 |
Feasibility of Gas Finding by Water Withdrawal in Sandstone Reservoir in Upper Triassic,Central Sichuan Basin |
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| SHEN Wei-cheng,LU Zheng-yuan,LI Hui,GONG Chang-ming,PENG Xuan.Feasibility of Gas Finding by Water Withdrawal in Sandstone Reservoir in Upper Triassic,Central Sichuan Basin[J].Journal of Guilin University of Technology,2009,29(1). |
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| Authors: | SHEN Wei-cheng LU Zheng-yuan LI Hui GONG Chang-ming PENG Xuan |
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| Affiliation: | 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation;Chengdu University of Technology 610059;China;2.Chuanzhong Oil and Gas Company;Southwest Oil and Gas Field Company of CNPC;Suining 629001;China |
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| Abstract: | The fracture systems in Upper Triassic sandstone reservoir are separated in the performance development.There are no large-scale connectivity edge and bottom water in the systems.Gas and water certainly co-exist in the single fracture system because gas in the reservoir is self-generated.The expansion of the nature gas above the water is mainly the driving energy of water-production while a well is drilled in the water body in a system.The low productivity of water drainage makes the gas-water contact slowl... |
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| Keywords: | water withdrawal fracture system Upper Triassic central Sichuan Basin |
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