本文選題：疏松砂巖油藏 + 注水開發(fā)��； 參考：《大慶石油地質(zhì)與開發(fā)》2017年03期

【摘要】：基于實際疏松砂巖油藏優(yōu)勢通道發(fā)育特征,建立了考慮微粒運移及附加壓力損耗的動態(tài)孔隙網(wǎng)絡(luò)模型,對控制優(yōu)勢通道形成的微觀因素進行了研究,明確了不同孔喉結(jié)構(gòu)及工作制度下優(yōu)勢通道形成規(guī)律。研究結(jié)果表明:在常規(guī)網(wǎng)絡(luò)模型基礎(chǔ)上,針對孔喉中微粒脫落、運移、堵塞等行為建立數(shù)學模型,并考慮由優(yōu)勢通道引起的附加壓力損耗,最終建立可模擬優(yōu)勢通道微觀發(fā)育的網(wǎng)絡(luò)模型;通過對比所建網(wǎng)絡(luò)模型與實際優(yōu)勢通道發(fā)育特征,驗證了網(wǎng)絡(luò)模型的正確性,初步明確了孔喉半徑動態(tài)變化與優(yōu)勢通道規(guī)模的關(guān)系;具有孔喉半徑較大、配位數(shù)較多、形狀因子較大等初始孔喉特征的儲層,更易形成優(yōu)勢通道,驅(qū)替壓差對其也有較大影響,總之,微粒在孔喉中堵塞與疏通所形成的平衡關(guān)系對優(yōu)勢通道發(fā)育有重要控制作用。該研究可為此類油藏儲層傷害研究及注水開發(fā)調(diào)整提供一定指導。
[Abstract]:Based on the characteristics of dominant channel development in unconsolidated sandstone reservoir, a dynamic pore network model considering particle migration and additional pressure loss is established, and the microcosmic factors controlling the formation of dominant channel are studied. The formation rules of dominant channels under different pore throat structure and working system are clarified. The results show that, based on the conventional network model, a mathematical model is established for the behavior of particle shedding, migration and blockage in the pore throat, and the additional pressure loss caused by the dominant channel is considered. Finally, the network model which can simulate the microcosmic development of the dominant channel is established, and the correctness of the network model is verified by comparing the characteristics of the established network model with that of the actual dominant channel. The relationship between the dynamic change of pore throat radius and the size of dominant channel is preliminarily clear, and the reservoir with larger pore throat radius, more coordination number and larger shape factor is easier to form the dominant channel. Displacement pressure difference has a great influence on it. In short, the balance between the blocking of particles in the pore throat and the dredging has an important role in controlling the development of dominant channels. This study can provide some guidance for reservoir damage research and water injection development adjustment in this kind of reservoir.
【作者單位】： 中國石油勘探開發(fā)研究院;中國石油大學石油工程學院;
【基金】：國家科技重大專項“海外大陸邊緣盆地勘探開發(fā)實用新技術(shù)研究”(2011ZX05030)
【分類號】：P618.13

【相似文獻】

相關(guān)期刊論文 前8條

1 鄢華;李全良;;流線數(shù)值模擬成果判斷油層優(yōu)勢通道及調(diào)整對策[J];內(nèi)江科技;2010年06期

2 陳程;宋新民;李軍;;曲流河點砂壩儲層水流優(yōu)勢通道及其對剩余油分布的控制[J];石油學報;2012年02期

3 張曉露;;水流優(yōu)勢通道的微觀特征及識別標準[J];內(nèi)蒙古石油化工;2013年16期

4 王明;姜福杰;龐雄奇;;渤中凹陷油氣運移優(yōu)勢通道及有利區(qū)預(yù)測[J];西南石油大學學報(自然科學版);2010年04期

5 李宏義;姜振學;龐雄奇;羅群;;柴北緣油氣運移優(yōu)勢通道特征及其控油氣作用[J];地球科學;2006年02期

6 楊明慧,金之鈞,呂修祥,孫冬勝;庫車褶皺沖斷帶天然氣成藏體系及有效運移優(yōu)勢通道[J];地球科學;2004年04期

7 姜文利;;松遼盆地濱北地區(qū)油氣運移優(yōu)勢通道的預(yù)測[J];天然氣技術(shù);2008年04期

8 ;[J];;年期

相關(guān)碩士學位論文 前1條

1 韓璐;錦16區(qū)儲層特征與優(yōu)勢通道識別[D];西南石油大學;2012年

，

本文編號：1970238