二连盆地巴音都兰凹陷巴Ⅱ构造隐蔽油藏的发现
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摘要
二连盆地最早开始油气勘探的巴音都兰凹陷虽然生油条件好 ,但大型构造圈闭与有利储集相带不匹配 ,所以 2 0余年勘探构造油藏一直未能取得突破。 2 0 0 1年转变思路 ,注重隐蔽油气藏的勘探 ,以LANDMARK地震解释系统为依托 ,运用STRATA、ISIS、JASON等地震反演软件建立构造 岩性油藏模式 ,精细识别巴Ⅱ构造的下白垩统巴彦花群岩性体 ,部署的 5口探井钻探全部获得商业油流 ,发现了具有千万吨级探明储量规模的宝力格油田 ,为二连探区新建产能 7.68× 10 4t。图 3(常亮摘 )
Oil and gas exploration began very early in the Bayindulan sag of Erlian basin, but so far, no oil or gas was discovered there. The source rocks of the sag are good, but the large structureal traps are not matched with the favourable reservoir belt, so structural oil reservoirs have never been found within more than 20 years. Fortunately, from 2001, people put their focus on the prospecting for subtle traps, represented by using inversion softwares, such as STRATA, ISIS, JASON, carefully identifying the K 1Ba lithologic body on the BaⅡ structure, building the model of structure lithological reservoirs. After these, 5 exploratory wells were drilled, all of them produced commercial oil, and then the Baolige oil field with OOIP more than 10×10 6t was found, which has a production capacity of 7.68×10 4t per year.
Oil and gas exploration began very early in the Bayindulan sag of Erlian basin, but so far, no oil or gas was discovered there. The source rocks of the sag are good, but the large structureal traps are not matched with the favourable reservoir belt, so structural oil reservoirs have never been found within more than 20 years. Fortunately, from 2001, people put their focus on the prospecting for subtle traps, represented by using inversion softwares, such as STRATA, ISIS, JASON, carefully identifying the K 1Ba lithologic body on the BaⅡ structure, building the model of structure lithological reservoirs. After these, 5 exploratory wells were drilled, all of them produced commercial oil, and then the Baolige oil field with OOIP more than 10×10 6t was found, which has a production capacity of 7.68×10 4t per year.
引文
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