Formation conditions and exploration technology of large-scale tight sandstone gas reservoir in Sulige

doi:10.7623/syxb2012S1005

ACTA PETROLEI SINICA ›› 2012, Vol. 33 ›› Issue (S1): 27-36.DOI: 10.7623/syxb2012S1005

• Petroleum Exploration • Previous Articles Next Articles

Formation conditions and exploration technology of large-scale tight sandstone gas reservoir in Sulige

YANG Hua　FU Jinhua　LIU Xinshe　FAN Liyong

Received:2011-12-25 Revised:2012-03-19 Online:2012-08-25 Published:2012-08-30

苏里格大型致密砂岩气藏形成条件及勘探技术

杨　华　付金华　刘新社　范立勇

中国石油长庆油田公司　低渗透油气田勘探开发国家工程实验室　陕西西安　710018

通讯作者: 杨　华
作者简介:杨　华，男，1963年9月生，1984年毕业于西南石油学院，现为中国石油长庆油田公司常务副总经理、低渗透油气田勘探开发国家工程实验室主任、教授级高级工程师，主要从事油气田勘探开发研究及管理工作。
基金资助:
国家重大科技专项（2011ZX05044，2011ZX05007-004）资助。

Abstract

Abstract:

Sulige region is located in the northwest of Ordos Basin with the exploration area of 40000 km². In the region, large tight gas reservoir with low permeability, low pressure and low abundance is mainly developed. Through explorations for more than 10 years, current China’s largest natural gas field, Sulige gas field, has been discovered, with proven geologic reserve of natural gas 2.85×10¹²m³. In summary of geological conditions for hydrocarbon accumulation and exploration technology, it can be found that the primary control factors to form such a large gas reservoir include: gentle structure and excessive distribution of hydrocarbon source rock, stable deposition and large-area distribution of sand reservoirs, constructive diagenesis and distribution of high permeability reservoirs, natural gas proximal migration and high accumulation efficiency. And full-digital seismic exploration, fine logging evaluation of complex gas reservoir, transformation of tight sandstone reservoir are key technologies for exploration and development of large-scale tight gas reservoir in Sulige.

Key words: Ordos Basin, Sulige gas field, tight gas reservoir, hydrocarbon accumulation characteristics, exploration technology

摘要：

苏里格地区位于鄂尔多斯盆地西北部，勘探面积约40000 km²，主要发育低渗、低压、低丰度的大型致密气藏。经过10余年的勘探，发现了目前我国最大的天然气田——苏里格气田，探明天然气地质储量2.85×10¹²m³。总结其成藏地质条件和勘探技术发现，平缓的构造与烃源岩广覆式分布、稳定的沉积与储集体大面积分布、建设性成岩作用与相对高渗储层分布、天然气近距离运聚成藏与高的聚集效率等因素是苏里格大型致密气藏形成的主要控制因素；全数字地震勘探、复杂气层测井精细评价、致密砂岩储层改造等技术是苏里格大型致密气藏勘探开发的关键技术。

关键词: 鄂尔多斯盆地, 苏里格气田, 致密气藏, 成藏特征, 勘探技术

YANG Hua　FU Jinhua　LIU Xinshe　FAN Liyong. Formation conditions and exploration technology of large-scale tight sandstone gas reservoir in Sulige[J]. ACTA PETROLEI SINICA, 2012, 33(S1): 27-36.

杨　华　付金华　刘新社　范立勇. 苏里格大型致密砂岩气藏形成条件及勘探技术[J]. 石油学报, 2012, 33(S1): 27-36.

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Formation conditions and exploration technology of large-scale tight sandstone gas reservoir in Sulige

苏里格大型致密砂岩气藏形成条件及勘探技术

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