塔里木盆地深层岩溶缝洞型储层三维雕刻“五步法”定量描述技术研究与应用

doi:10.11720/wtyht.2020.0055

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摘要

近年来,塔里木盆地碳酸盐岩领域取得了丰富的油气成果,尤其是盆地北部深层奥陶系岩溶缝洞型油藏资源量巨大,为准确认识、评价、管理该类型油藏,应用物探手段对储层的精细刻画以及准确合理的对产量、储量的量化描述十分重要。前期对于岩溶缝洞性油藏的量化描述,大多基于二维(平面)范畴,本文讲述的描述方法重点基于高精度采集三维地震资料、实钻井资料及生产动态数据,动静结合,利用属性表征地震相、相控反演确定储层、孔隙度关系式建立地质—地震桥梁,最终以三维空间雕刻的三维范畴来描述和量化地质体。此方法能够有效刻画及求取岩溶缝洞型储层中洞、孔、缝三类储空间的几何形态和有效体积数值,达到该类储层的准确定量化描述。目前,此技术应用于塔里木盆地深层碳酸盐岩缝洞型储层量化描述标准的建立及储量计算方案的编制效果较好,有望实现碳酸盐岩溶缝洞型储层量化描述技术的进步。

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	高利君
	李宗杰
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	王虹
	黄超

关键词 ：塔里木盆地, 岩溶缝洞型油藏, 三维雕刻, 定量化描述, 储量计算

Abstract：

In recent years,the field of carbonate rocks of Tarim basin has gained rich oil and gas,especially Ordovician karst cave reservoir resource in deep seam of northern basin.For the purpose of accurate cognition,evaluation and management of the reservoirs,the application of geophysical exploration methods to fine characterization of reservoir and accurate quantitative description of production and reserves is very important.Previous quantitative description of reservoir and karst seam holes is mainly based on two-dimensional (plane) category.In this paper,the authors introduce the key description method based on high precision acquisition of 3D seismic data,drilling data and production performance data,activity union,properties characterization of seismic facies,and use phase inversion to determine the reservoir as well as porosity relation to establish geological and seismic bridge,eventually carving three-dimensional category in three dimensions to describe and quantify geological body.This method can effectively characterize and obtain the geometric shape and effective volume value of the three types of reservoir spaces in karst slotted reservoirs,and achieve accurate quantitative description of such reservoirs.At present,this technique has been applied to the establishment of quantitative description standard and the compilation of reserve calculation scheme of carbonate fissure and cave reservoirs in the depth of Tarim basin,in the hope of realizing the progress of quantitative description technology of carbonate karst fissure and cave reservoirs.

Key words： Tarim basin karst fractured and cavernous reservoir three-dimensional carving quantitative description calculation of reserves

收稿日期: 2020-01-19 出版日期: 2020-06-24

P631.4

基金资助:“十三五”国家科技重大专项课题“海相碳酸盐岩地震勘探关键技术”(2017ZX05005-004)

作者简介: 高利君(1988-),男,陕西汉中人,中国石化西北油田分公司勘探开发研究院工程师,主要从事塔里木盆地碳酸盐岩储层预测及勘探井位部署工作。Email: 465858370@qq.com

引用本文:

高利君, 李宗杰, 李海英, 王虹, 黄超. 塔里木盆地深层岩溶缝洞型储层三维雕刻“五步法”定量描述技术研究与应用[J]. 物探与化探, 2020, 44(3): 691-697.
Li-Jun GAO, Zong-Jie LI, Hai-Ying LI, Hong WANG, Chao HUANG. The deep karst fissure and cavern reservoir in Tarim basin carved in three dimensions:Research and application of "five-step method" quantitative description technology. Geophysical and Geochemical Exploration, 2020, 44(3): 691-697.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2020.0055 或 https://www.wutanyuhuatan.com/CN/Y2020/V44/I3/691

Fig.1 塔河油田奥陶系岩溶缝洞型储层典型岩心照片
a—洞穴;b—溶蚀孔洞;c—裂缝

Fig.2 塔北地区石炭系覆盖区奥陶系柱状图

Fig.3 塔河油田奥陶系典型地震时间偏移剖面

Fig.4 塔北地区岩溶缝洞型储层典型地震相剖面
a—串珠相;b—杂乱相;c—裂缝相

Fig.5 塔北地区不同类型地震相三维雕刻
a—串珠相三维雕刻;b—杂乱相三维雕刻;c—裂缝相三维雕刻

Table 1 塔里木盆地深层灰岩油藏洞穴型储层有效厚度下限标准

Fig.6 塔里木盆地深层岩溶缝洞型储层分类雕刻路线

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