A NovelApproach for the TotalAmount of Clay in Clastic Reservoirs
-
摘要: 在实验分析的基础上,提出了一种新的求取碎屑岩储层中粘土总量的方法———二级抽提分离+非定向X射线衍射法,即首先用传统的抽提分离法分别提取出粒径小于10μm和10～64μm的微粒,然后用粒径小于10μm微粒的质量加上利用非定向X射线法测出的粒径在10～64μm微粒中粘土部分的质量,就得到该样品中粘土总量。并以WN油田碎屑岩储层为例,具体论述了该法的计算过程及其实际应用效果。研究结果表明,该法具有原理简单、精度高、理论性强、实际应用效果良好的优点,可作为求取沉积岩储层中粘土总量的可靠方法。Abstract: On the basis of experimental ana lysis, a new method, twice grain size segregation plus X-ray diffraction of randomly oriented powers of clay minerals, was put forward to calculate the total amount in clastic reservoir rock.Firstly, particles of which radius less than 10μm and 10 to 64μm w are separated from the samples by the way of traditional segregation of clay minerals, and then weigh them respectively. Secondly, the weight of the part of clay minerals in the particles with radius 10 to 64μm can abe available by means of analysis of X-ray diffraction of randomly or-iented powers of clay m ineral. Finally, the first part of clay minerals. weight plus the second part, the total amount of clay of the sample can be obtained. In order to concretely discuss the course and the effect of practical application of the method, clastic reservoirs in WN oil field was introduced. The study result ind icates that themethodment ioned in the paper has simpler principle,higher precision, good theorization and show s a satisfactory effect, so it is a reliab le approach for the total amount of clay in clastic reservoir rocks.
-
Key words:
- clay minerals /
- X-ray diffraction /
- particle radius /
- total amount /
- clastic reservoirs
-
[1] 1 赵杏媛,陈洪起. 粘土矿物与防止油层损害[J].石油勘探与开发,1988,(04):72-79.
2 王欣,杨贤友. 影响敏感性储层主要因素的确定[J].钻井液与完井液,1998,(06):7-10.
3 黄瑛. 国内外酸化技术发展近况[J].钻井液与完井液,2000,(01):31-38.
4 杨贤友. 保护油气层钻井完井液现状与发展趋势[J].钻井液与完井液,2000,(01):25-30.
5 Davies D K. Reservoir stimulation of dirty sandstones[A].1980.41-48.
6 Basan P B. Formation damage index number:a model for the evaluation of fluid sensitivity in shaly sandstones[R].SPE 14317,1985.
7 Civan F. Effect of clay swelling and fines migration on formation permeability[R].SPE 16235,1987.
8 Leone J A. Characterization and control of formation damage during waterflooding of a high-clay-content reservoir[R].SPE 16234,1987.
9 Zaitoun A,Berton H. Stabilization of montmorillionite clay in porous media by high-molecular-weight polymers[R].SPE 19416,1990.
10 徐同台,王兴信,张有瑜. 中国含油气盆地粘土矿物[M].北京:石油工业出版社,2003.6384,569-611.
11 赵杏媛,张有瑜. 粘土矿物与粘土矿物分析[M].北京:海洋出版社,1990.1-3,73-83.
12 陈忠,沈明道,赵敬松. 粘土矿物含量分析中的几个问题[J].沉积学报,1998,(01):137-139.
13 陈丽华,姜在兴. 储层实验测试技术[M].北京:石油工业出版社,1993.220-232.
14 程鹏,高抒,李徐生. 激光粒度仪测试结果及其与沉降法、筛析法的比较[J].沉积学报,2001,(03):449-455. -
点击查看大图
计量
- 文章访问数: 581
- HTML全文浏览量: 11
- PDF下载量: 344
- 被引次数: 0
下载:
