本文選題：溫壓系統(tǒng) + 溫度場��； 參考：《石油實驗地質(zhì)》2017年04期

【摘要】：準(zhǔn)噶爾盆地溫壓系統(tǒng)的形成與演化對油氣遠(yuǎn)源成藏具有明顯的控制作用。以系統(tǒng)熱力學(xué)理論為指導(dǎo),在盆地溫度場和壓力場分析基礎(chǔ)上,系統(tǒng)研究了盆地溫壓系統(tǒng)的特征、演化及其對油氣遠(yuǎn)源成藏的控制作用。研究表明盆地隆起區(qū)具有高地溫、高地溫梯度和高大地?zé)崃鞯奶卣?坳陷區(qū)則相反;坳陷區(qū)普遍發(fā)育超壓,并向盆地邊緣呈不規(guī)則環(huán)狀降低,盆地南部及腹部坳陷區(qū)發(fā)育強(qiáng)超壓,盆地東部次之,西北緣以弱超壓為主。垂向上盆地發(fā)育P-T3、J1-J1s和K1tg-E2-3a三套相對封閉的溫壓系統(tǒng)。海西期盆地沉降速率較快,P-T3期溫壓系統(tǒng)超壓積聚;至燕山期構(gòu)造運(yùn)動強(qiáng)烈,凸起邊緣切穿蓋層的斷裂活動頻繁,地層溫壓場調(diào)整,油氣突破蓋層運(yùn)移與聚集,是該區(qū)遠(yuǎn)源油氣藏形成的主要時期;喜馬拉雅期盆地主要為南降北升的掀斜運(yùn)動,斷裂活動微弱,相對封閉性溫壓系統(tǒng)的發(fā)育使油氣保存條件優(yōu)越。平面上遠(yuǎn)源巖性油氣藏主要分布在盆地西北緣、莫北 莫索灣地區(qū)、陸梁隆起及東部隆起等低溫壓場區(qū),是準(zhǔn)噶爾盆地遠(yuǎn)源油氣藏勘探的有利區(qū)。
[Abstract]:The formation and evolution of temperature-pressure system in Junggar Basin have obvious controlling effect on oil and gas reservoir formation. Based on the theory of system thermodynamics and the analysis of temperature field and pressure field in the basin, the characteristics, evolution and controlling effect of the temperature and pressure system on the formation of oil and gas are studied systematically. The study shows that the uplift area of the basin has the characteristics of high geothermal temperature, high geothermal gradient and high geothermal flux, whereas the depression area is opposite. Strong overpressure developed in the southern part of the basin and the abdominal depression, followed by the eastern part of the basin, and the weak overpressure dominated in the northwest margin. Three sets of relatively closed temperature and pressure systems, P-T _ 3N _ J _ 1-J _ 1s and K1tg-E2-3a, have been developed in the vertical basin. The subsidence rate of Hercynian basin is faster than that of P-T3 period, and the accumulation of overpressure in P-T3 period, the strong tectonic movement in Yanshanian period, the frequent fracture activity of cutting through the caprock at the uplift margin, the adjustment of formation temperature and pressure field, the migration and accumulation of oil and gas through the caprock. The Himalayan basin is mainly an uplift movement from the south to the north with weak fault activity and superior preservation conditions due to the development of the relatively closed system of temperature and pressure. The remote lithologic reservoirs are mainly distributed in the northwestern margin of the basin, Mobei Mosuowan area, Luliang uplift and eastern uplift, and are favorable areas for exploration of the far source reservoirs in Junggar Basin.
【作者單位】： 山東科技大學(xué)地球科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金(41172108) 國家油氣重大專項(2016ZX05041005,2016ZX05001003)資助
【分類號】：P618.13

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