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Considering the geological features of these reserves, this paper studies five evaluation parameters for these reserves including the mainstream throat radius, movable fluid saturation, quasi start-up pressure gradient, crude oil viscosity, and clay minerals content, on the basis of core analysis of 26 blocks in Gaoyou sag, Jinhu sag and Hai'an sag. The effective development potential of these reserves was evaluated with their characteristics and the technical and economic risks taken into consideration. The results show that more than 50% of blocks in the unexploited difficult reserves of Jiangsu oilfield remain difficult to exploit with no reservoir transformation under the oil price of 730 $/t. 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科技导报
| 研究论文 2014, 32(27): 70-75
江苏油田难采储量有效动用潜力评价
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杨鹏
作者信息
中国石油化工股份有限公司江苏油田分公司, 扬州225009
Evaluation of Effective Development Potential of Difficult Mining Reserves in Jiangsu Oilfield
Affiliations
出版时间: 2014-09-28
doi: 10.3981/j.issn.1000-7857.2014.27.012
文章导航
随着江苏油田油气勘探成熟度的不断提高，低渗或特低渗、深层、薄层低丰度、自然产能低、产能递减快、常规开采方式无法实现经济有效开发的难采储量比重逐年增加。本文在高邮凹陷、金湖凹陷以及海安凹陷等26 个断块岩心分析的基础上，结合难采储量的地质特点，研究了此类油藏的主流喉道半径、可动流体饱和度、拟启动压力梯度、原油黏度和黏土矿物含量5 个评价参数，并从储层特征及技术经济风险上，评价了难采储量的有效动用潜力。研究表明，在不采取储层改造、油价730 $/t 下，江苏油田未动用难采储量中有50%以上的断块较难动用。在较高的油价和储层改造的基础上，江苏油田难采储量才能得到有效的动用。
难采储量
/
有效动用
/
评价参数
/
岩心分析
With the increasing maturity of oil and gas exploration in Jiangsu oilfield, mining reserves that are difficult to exploit increase year by year, which are characterized by low permeability or extremely low permeability, deep layer, thin layer with low abundance, low natural capacity, dramatic decrease of production capacity, and difficulties in effective exploitation by conventional mining methods. Considering the geological features of these reserves, this paper studies five evaluation parameters for these reserves including the mainstream throat radius, movable fluid saturation, quasi start-up pressure gradient, crude oil viscosity, and clay minerals content, on the basis of core analysis of 26 blocks in Gaoyou sag, Jinhu sag and Hai'an sag. The effective development potential of these reserves was evaluated with their characteristics and the technical and economic risks taken into consideration. The results show that more than 50% of blocks in the unexploited difficult reserves of Jiangsu oilfield remain difficult to exploit with no reservoir transformation under the oil price of 730 $/t. A higher oil price and transformation of the reservoir are necessary for effective development of these reserves.
difficult reserves
/
effective development
/
evaluation parameters
/
core analysis
杨鹏.
江苏油田难采储量有效动用潜力评价.
科技导报,
2014
, 32
(27)
: 70
-75
.
DOI: 10.3981/j.issn.1000-7857.2014.27.012
YANG Peng.
Evaluation of Effective Development Potential of Difficult Mining Reserves in Jiangsu Oilfield[J].
Science & Technology Review ,
2014
, 32
(27)
: 70
-75
.
DOI: 10.3981/j.issn.1000-7857.2014.27.012
2014年第32卷第27期
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文章信息
doi: 10.3981/j.issn.1000-7857.2014.27.012
接收时间：2014-04-21
首发时间：2014-09-30
出版时间：2014-09-28
收稿日期：2014-04-21
修回日期：2014-07-31
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.27.012
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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