百色盆地东部坳陷终极资源量预测与勘探方向

Ultimate potential resource prediction and exploration target in East Depression, Baise Basin

罗毅 蔡勋育 吕立勇

Luo Yi Cai Xunyu Lü Liyong

中国地质大学, 北京, 100083 2. 中国石油化工股份有限公司, 油田勘探开发事业部, 北京, 100728 3. 中国石油化工股份有限公司, 西南油气分公司广西采油厂, 南宁, 530023

China University of Geosciences, Beijing 100083, China 2. Oilfield E&P Department, SINOPEC, Beijing 100728, China 3. Guangxi Production Plant, SINOPEC Southwest Company, Nanning, Guangxi 530023, China

百色盆地东部坳陷石油资源探明程度37.59%。应用油藏规模序列法,对其终极资源量进行预测,结果显示仍有待发现油藏35个,待发现油藏地质储量2836×104t。其中,储量规模大于100×104t的待发现油藏有11个,待发现资源量1 622×104t;储量规模小于100×104t的待发现油藏有24个,待发现资源量1 214×104t。预测油藏预测储量与实际储量相对误差小于10%。待发现资源量主要分布在中央凹陷带隐蔽油气藏、南部斜坡带三角洲砂体和滩坝砂、前第三系潜山、陡坡带砂砾岩扇体和红层、那读组页岩气重点领域。

The confirmed recoverable oil resource was estimated to be 37.59% in the East Depression of the Baise Basin. By means of reservoir scale sequence, the ultimate potential resource of the depression was predicted, indicating 35 reservoirs and 2 836×104 t reserves remained to be discovered. 11 undiscovered reservoirs (total reserves 1 622×104 t) had the reserves of more than 100×104 t. 24 undiscovered reservoirs (total reserves 1 214×104 t) had the reserves of less than 100×104 t. The difference between predicted and actual oil reserves was less than 10%. The resources remained to be discovered mainly located in covered oil reservoirs in the Central Sag, delta sandbodies and beach-bar sandbodies in the Southern Slope, pre-Tertiary buried hill, glutenite and red bed in the steep slope and shale in the Nadu Formation.

https://doi.org/10.11781/sysydz201102215