自由膨胀比测定新方法在胜利油区砂岩储层评价中的应用

自由膨胀比测定新方法在胜利油区砂岩储层评价中的应用

王备战1,2，鲁安怀3，李红南4，王林5，徐守余4

1. 中国海洋大学环境科学与工程学院, 青岛 266100；2. 中国石油大学（华东）研究生院，东营 257001；3. 北京大学地球与空间科学学院，北京 100871；4. 中国石油大学（华东）地球资源与信息学院，东营 257001；5. 中国石油天然气勘探开发公司，北京 100034

收稿日期:2009-12-20 修回日期:2009-12-20 出版日期:2009-12-20 发布日期:2009-12-20

Application of the Relative Free Swelling Ratio Testing of Clay Minerals in Sandstone Reservoirs Evaluation in Shengli Oil Field, China

WANG Bei-zhan1,2, LU An-huai3, LI Hong-nan4, WANG Lin5, XU Shou-yu4

1. College of Environmental Science and Engineering, China University of Oceanology, Qingdao 266100, China;2. Graduate School, China University of Petroleum, Dongying 257001, China;3. School of Earth and Space Sciences, Peking University, Beijing 100871, China;4. College of Earth Resource and Information, China University of Petroleum, Dongying 257001, China;5. Exploration Department, China National Oil & Gas Exploration and Development Corporation, Beijing 100034, China

Received:2009-12-20 Revised:2009-12-20 Online:2009-12-20 Published:2009-12-20

摘要/Abstract

摘要： 粘土矿物的“水敏效应”是引起砂岩储层伤害的最主要原因之一。本文应用自由膨胀比试验的新方法，测定了胜利油区27个砂岩储层岩心样品，并通过X衍射对样品中粘土矿物含量的测定，建立了储层自由膨胀比与蒙脱石含量之间良好的正相关模型。该方法可以更直观、准确地描述出油气储层中粘土矿物的自由膨胀行为，并定量地反映出粘土矿物水敏性导致的储层潜在伤害，也可以用于油田防膨剂的研制，因此在油气田开发中具有较广泛的应用前景。

Abstract: The water sensitivity of clay minerals is one of the primary causes of reservoir damage in oil fields. As a new testing method of expansive soil, the relative free swelling ratio is defined as the ratio of the equilibrium sediment volume of 10 g ovendried soil in distilled water to that in coal soil (or CCl4). This paper applied this new testing method in swelling property analysis of clay minerals in sandstone reservoir. The relative free swelling ratios of 27 sandstone core samples with argillaceous contents of 10~50% in Shengli Oil Field were measured, the clay minerals contents were also identified by X-Ray, and then the positive correlation model between montmorillonite contents and free swelling ratios of sandstone reservoirs was established. The results showed that the free swelling ratio measurement can more directly and accurately describe the free swelling properties of clay minerals in sandstone reservoirs, and quantitatively reflect the potential swelling damage of reservoirs caused by water sensitivity of clay minerals, and consequently can be applied in the development of clay antiswelling agents for reservoirs, which is important and significant for adjusting the development plans of oil fields.

王备战,鲁安怀，李红南，王林，徐守余. 自由膨胀比测定新方法在胜利油区砂岩储层评价中的应用[J]. J4.

WANG Bei-zhan1,2, LU An-huai3, LI Hong-nan4, WANG Lin5, XU Shou-yu4. Application of the Relative Free Swelling Ratio Testing of Clay Minerals in Sandstone Reservoirs Evaluation in Shengli Oil Field, China[J]. J4.