
2016年8月第35卷第4期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI10.3969/J.ISSN.1000-3754.2016.04.001
大庆长垣扶余油层油气优势运移通道
张春梅'邹明德?王革梁晓东'(1.大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712; 2.中国石油新疆油田分公司新港作业分公司,新谨克拉玛依834000)
Aug,2016 Vol. 35 No. 4
摘要:大庆长坦扶余油层属于上源下储的“倒灌式”低渗透油藏。为了搞清油微的油气输导体系和优势运移通道,通过油气成微关键期的流体压力、断层输导性、构造诱导性及砂体连通性等因素分析,划分出油气运聚单元;通过排烃断层、砂体类型、构造诱导作用和过剩流体压力等因索分析,确定出优势运移通道。研究认为:油气运移通道的主控因素是流体压力驱动能力、砂体连通性和断层输导性;优势运移通道分为断层输导型、构造诱导型和流体驱动型;断层输导型优势运移通道发育于长垣西侧、杏树岗地区,主要由北西向断层与北北西向河道砂体构成,有利于油气的大量运移;构造诱导型优势运移通道发育于长垣西侧、高台子、葡花地区,主要由近东西向河道砂体构成,有较高的构造起伏,对古龙凹陷、三肇凹陷生成的烃类具有诱导作用;流体驱动型发育于长垣南部的扶余油层,主要由近东西向河道砂体构成,存在较大的流体过剩压力,对油气运移具驱动能力。
关键调:大庆长垣;扶余油层;输导体系;优势运移通道;构造诱导;流体过剩压力
中图分类号:TE122.1
文献标识码:A
文章编号:1000-3754(2016)04-0001-07
PETROLEUMPRIORITYMIGRATINGPATHSFORFUYUOILLAYERS
INDAQINGPLACANTICLINE
ZHANG Chunmei',ZOU Mingde’,WANG Ge',LIANG Xiaodong
(1. Exploration and Development Research Institute of Daqing Oilfield Co. Lad., Daqing 163712, China; 2.Xingang Operating Branch of PetroChina Xinjiang Oilfield Branch Company,Karamay 834000,China)
Abstract: Fuyu oil layers of Daqing Placanticline belong to the "reverse tank form" low-permeability oil reservoirs with the upper source rocks and lower reservoirs. In order to make clear of the petroleum transporting system and priority migration channel of the oil reservoirs, by means of the analyses of the following factors in the reservoir ac-cumulation key period: the fluid pressures, fault conductivity, structure abduction capacity, sandbody connectivity and so on, the hydrocarbon migration and accumulation units were classified; with the help of analyses of the fac-tors such as the expulsive faults, sandbody types, structure abduction action, excess fluid pressure and so forth, the priority migrating channels were determined. The achievements show that the main controlling factors of the hy drocarbon migration channels are fluid driving capacity, sandbody connectivity and fault conductivity; the priority migrating channels can be divided into fault transportation, structural induction and liquid displacement forms: the
收稿日期:2016-02-23
改回日期:2016-04-05
基金项目:国家重大科技专项“松辽北部岩性地层油气藏富集区带、目标优选与勘探技术应用"(2011ZX05001-001-04)。作者介:张春梅,女,1963年生,工程师,从事油气勘探与石油地质储量评价工作。
E-mail;cm-zhangpetrochina.com.cn
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