延长石油集团非常规天然气勘探开发进展

doi:10.7623/syxb201601014

石油学报 ›› 2016, Vol. 37 ›› Issue (1): 137-144.DOI: 10.7623/syxb201601014

延长石油集团非常规天然气勘探开发进展

王香增

陕西延长石油(集团)有限责任公司陕西西安 710075

收稿日期:2015-07-10 修回日期:2015-12-12 出版日期:2016-01-25 发布日期:2016-02-02
通讯作者: 王香增,男,1968年12月生,1989年获西安石油大学油气田开发工程专业学士学位,1998年获中国地质大学(北京)能源学院油气田开发工程专业博士学位,现为陕西延长石油(集团)有限责任公司总地质师兼副总经理,主要从事石油与天然气勘探开发工作。Email:sxycpcwxz@126.com
作者简介:王香增,男,1968年12月生,1989年获西安石油大学油气田开发工程专业学士学位,1998年获中国地质大学(北京)能源学院油气田开发工程专业博士学位,现为陕西延长石油(集团)有限责任公司总地质师兼副总经理,主要从事石油与天然气勘探开发工作。Email:sxycpcwxz@126.com

Advances in unconventional gas exploration and development of Yanchang Petroleum Group

Wang Xiangzeng

Shaanxi Yanchang Petroleum(Group)Co., Ltd., Shaanxi Xi'an 710075, China

Received:2015-07-10 Revised:2015-12-12 Online:2016-01-25 Published:2016-02-02

摘要/Abstract

摘要：

延长石油集团通过强化地质认识,明确了鄂尔多斯盆地陕北斜坡具备形成非常规天然气的地质条件,而致密砂岩气和页岩气是当前最为现实的勘探开发领域。在地质勘探理念上,确定鄂尔多斯盆地的南部物源对古生界砂体的发育具有重要贡献,而频繁的水进水退作用是促进优质储层发育的最主要因素;建立了"成熟烃源灶迁移控藏"的成藏模式,以此预测致密砂岩气藏的空间展布;重视陆相页岩砂质纹层的气体赋存能力,找到游离气赋存空间;以地化、储层、测井、地震等多种学科相结合实现了页岩气储层甜点的地震预测。同时,形成了陆相页岩气水平井钻完井技术、致密砂岩气藏储层保护钻井液体系、VES-CO₂泡沫压裂技术、液态CO₂/滑溜水混合压裂技术等开发技术,保证了致密砂岩气和页岩气的规模化开采。以勘探开发一体化模式为指导,探明中生界页岩气地质储量677×10⁸m³,古生界致密砂岩气地质储量3000×10⁸m³,目前的天然气生产能力已达到6×10⁸ m³/a,基本打破南油北气的开发局面。

关键词: 鄂尔多斯盆地, 延长石油集团, 致密砂岩气, 页岩气, 勘探开发进展

Abstract:

With the enhanced geological knowledge,Yanchang Petroleum Group has clarified that the north Shaanxi slope of Ordos Basin has favorable geological conditions for the formation of unconventional natural gas;tight sandstone gas and shale gas are the most practical exploration and development fields.In terms of geological exploration concept,it has been determined that the provenance of the southern Ordos Basin made a great contribution to the development of Paleozoic sand bodies;frequent transgression and regression is the most favorable factor for promoting the development of high-quality reservoirs.The accumulation mode of "mature hydrocarbon kitchen migration for reservoir control" was created to predict the spatial distribution of tight sandstone gas reservoirs.This study focuses on the gas occurrence capacity of sandy laminae developed in terrestrial shale,aiming to find the occurrence space of free gas.The assemblage of multi-disciplines including geochemistry,reservoir,logging and seismology was used for seismic prediction in the sweet-spot of shale gas reservoirs.Meanwhile,the large-scale exploitation of tight sandstone gas and shale gas is guaranteed by applying horizontal-well drilling and completion technologies for terrestrial shale gas,drilling fluid system with reservoir protection function for tight sandstone gas reservoirs,VES-CO₂ foam fracturing technology,liquid CO₂/slick water mixing fracturing technology and other development technologies.Guided by the integrated exploration and development mode,the geological reserves of Mesozoic shale gas reserves and Paleozoic tight sandstone gas were proven to be 677×10⁸m³ and 3000×10⁸m³ respectively,and current natural gas production capacity has reached 6×10⁸m³/a,basically changing the situation of oil development in the south while natural gas production in the north.

Key words: Ordos Basin, Yanchang Petroleum Group, tight sandstone gas, shale gas, advances in exploration and development

中图分类号:

TE132.2

王香增. 延长石油集团非常规天然气勘探开发进展[J]. 石油学报, 2016, 37(1): 137-144.

Wang Xiangzeng. Advances in unconventional gas exploration and development of Yanchang Petroleum Group[J]. Acta Petrolei Sinica, 2016, 37(1): 137-144.

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延长石油集团非常规天然气勘探开发进展

Advances in unconventional gas exploration and development of Yanchang Petroleum Group

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