曙光地区杜家台油层薄砂岩高精度预测

doi:10.3969/j.issn.1006-6535.2020.06.013

特种油气藏 ›› 2020, Vol. 27 ›› Issue (6): 96-101.DOI: 10.3969/j.issn.1006-6535.2020.06.013

曙光地区杜家台油层薄砂岩高精度预测

陈昌, 金科, 雷文文, 王衡, 郭峰, 钱丽欣, 秦喜春

中国石油辽河油田分公司,辽宁盘锦 124010

收稿日期:2020-05-15 修回日期:2020-09-28 出版日期:2020-12-25 发布日期:2022-02-18
作者简介:陈昌(1986—),男,高级工程师,2007年毕业于长江大学勘查技术与工程专业,2015年毕业于东北石油大学地质工程专业,获硕士学位,现从事地震勘探研究工作。
基金资助:
国家科技重大专项“辽河坳陷增储领域地质评价与勘探实践”(2016ZX05006-005-002)、“渤海湾盆地辽河探区深层油气形成条件与有利区综合评价”(2017ZX05008006-002-003);中国石油重大科技专项“辽河油田原油千万吨持续稳产关键技术研究”(2017E-16)

High-precision Prediction of Thin Sandstones in Dujiatai Oil Layer of Shuguang Area

Chen Chang, Jin Ke, Lei Wenwen, Wang Heng, Guo Feng, Qian Lixin, Qin Xichun

PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China

Received:2020-05-15 Revised:2020-09-28 Online:2020-12-25 Published:2022-02-18

摘要/Abstract

摘要： 针对曙光地区杜家台油层扇三角洲前缘薄砂岩预测难的问题,应用地震波形指示模拟技术开展了薄砂岩高精度预测。结果表明,地震波形指示模拟自然电位结果识别薄砂岩的精度可达到3.0～8.0 m,反演吻合率达到81.5%;明确了曙光地区杜二段扇三角洲前缘薄砂岩的展布特征,精细识别出杜130—杜144、杜300—曙100、曙66—曙古19—曙175井区3个扇三角洲前缘河口坝和席状砂微相薄砂岩发育区,面积合计达26.0 km²,指导部署2口探井,均获得工业油气流,为曙光地区增储稳产奠定了基础。地震波形指示模拟技术对曙光地区薄砂岩预测以及岩性油气藏勘探具有重要的意义。

关键词: 地震反演, 薄砂岩预测, 波形指示模拟, 扇三角洲前缘, 曙光地区, 杜家台油层

Abstract: In order to solve the problem that it is difficult to predict the thin sandstones in the fan delta front facies of Dujiatai oil layer of Shuguang Area, the high-precision prediction of thin sandstones was carried out by using seismic waveform indication simulation technology. The results show that the accuracy of identifying thin sandstones by self-potential (SP) from seismic waveform indication simulations can reach 3.0-8.0 m and the inversion coincidence rate can reach 81.5%; the distribution characteristics of thin sandstones in the fan delta front facies of the Du 2 Member in Shuguang Area are clarified. Three thin sandstone development areas of fan delta front mouth bar and sheet sand microfacies (Du 130-Du 144, Du 300-Shu 100, Shu 66-Shugu 19-Shu 175 well areas) are identified, with a total area of 26.0 km². The research results have guided the deployment of two exploration wells, both obtaining industrial oil and gas flow, which laid the foundation for further improvement of reserves and productivity in Shuguang Area. The seismic waveform indication simulation technology is of great significance for thin sandstone prediction and lithologic reservoir exploration in Shuguang Area.

Key words: seismic inversion, prediction of thin sandstone, waveform indication simulation, fan delta front, Shuguang Area, Dujiatai oil layer

中图分类号:

TE122

陈昌, 金科, 雷文文, 王衡, 郭峰, 钱丽欣, 秦喜春. 曙光地区杜家台油层薄砂岩高精度预测[J]. 特种油气藏, 2020, 27(6): 96-101.

Chen Chang, Jin Ke, Lei Wenwen, Wang Heng, Guo Feng, Qian Lixin, Qin Xichun. High-precision Prediction of Thin Sandstones in Dujiatai Oil Layer of Shuguang Area[J]. Special Oil & Gas Reservoirs, 2020, 27(6): 96-101.

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曙光地区杜家台油层薄砂岩高精度预测

High-precision Prediction of Thin Sandstones in Dujiatai Oil Layer of Shuguang Area

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