蒸汽吞吐后期近井地带储层的变化及其对油田开发效果的影响

doi:10.7623/syxb200503016

石油学报 ›› 2005, Vol. 26 ›› Issue (3): 74-77.DOI: 10.7623/syxb200503016

蒸汽吞吐后期近井地带储层的变化及其对油田开发效果的影响

杨春梅^1,2, 陆大卫^1,3, 张方礼², 李洪奇¹, 刘卫东²

1. 中国石油大学资源与信息学院北京 102249;
2. 中国石油辽河油田公司辽宁盘锦 124010;
3. 中国石油天然气股份有限公司北京 100011

收稿日期:2004-08-26 修回日期:2004-11-25 出版日期:2005-05-25 发布日期:2010-05-21
作者简介:杨春梅,女,1968,年2月生,1991年毕业于石油大学(华东),现为石油大学(北京)在读博士.E-mail:ycm_lh@sina.com

Reservoir characteristics in the near region of thermal recovery wells and their effects on development of oilfield in the later period of steam stimulation

YANG Chun^1,2, LU Da^1,3, ZHANG Fang², LI Hong¹, LIU Wei²

1. Faculty of Natrual Resource and Information Technology, China University of Petroleum, Beijing 102249, China;
2. Liaohe Oilfield Company, CNPC, Panjin 124010, China;
3. PetroChina Company, Ltd. Beijing 100011, China

Received:2004-08-26 Revised:2004-11-25 Online:2005-05-25 Published:2010-05-21

摘要/Abstract

摘要： 针对蒸汽吞吐超过5~6个周期之后稠油油藏开发效果明显变差的问题,以距原开发井仅13m的侧钻取心井为依据,研究了近井地带储层性质变化规律及其对开发效果的影响。结果表明:在开发后期,近井地带储层及流体性质变化较大,颗粒溶蚀破碎现象严重,超大管状孔发育;油层动用程度高,含油饱和度接近甚至低于实验室确定的残余油饱和度;存在不可逆的沥青积淀现象。近井地带储层性质的一系列变化是造成钻井液漏失、固井质量差、油层污染严重并最终导致加密调整井开发效果不佳的主要原因,近井地带存水量的增加降低了吞吐后期的热效率;高渗透性大孔道使蒸汽在储层中发生窜流;原油中的硫化物在高温蒸汽作用下所发生的脱硫反应使热采稠油管柱严重腐蚀。虽然近井地带储层性质的一系列变化会对开发效果造成不利影响,但是孔隙结构的改善及亲水性的增强对于提高采收率也具有一定的积极作用。

关键词: 蒸汽吞吐井, 侧钻取心井, 近井地带储集层, 渗透性, 沥青积淀, 提高采收率

Abstract: A sidetracked core hole with 13 meters away from original well in the pay zone was investigated. The changes of heavy oil reservoir property and their effects on production performances after five to six cycles of steam stimulation were analyzed. The result showed that in the later period of oilfield development,the characteristics of reservoir and fluid in the near region of thermal recovery well changed obviously. Rock grains were corroded seriously,and big pores were enhanced. The high-permeability wormhole appeared,and volume of clay decreased. Oil saturation was close to and lowers than the remaining oil saturation determined by water flooding test in laboratory. Bitumen was deposited in pores and could not be reversed. All changes have brought a series of problems in the process of steam stimulation development,such as sanding,leakage and loss of drilling fluid,poor quality of well cementing,casing failing,electrical anisotropy,steam channeling and low steam heat efficiency. Those factors affected the development effectiveness of infill wells and adjusting wells. Otherwise,wettability of reservoirs and improvement of pore structure would enhance heavy-oil recovery.

Key words: steam stimulation well, sidetracked core hole, reservoir in near region of thermal recovery well, permeability, bitumen deposition, enhanced oil recovery

中图分类号:

TE821

杨春梅, 陆大卫, 张方礼, 李洪奇, 刘卫东. 蒸汽吞吐后期近井地带储层的变化及其对油田开发效果的影响[J]. 石油学报, 2005, 26(3): 74-77.

YANG Chun, LU Da, ZHANG Fang, LI Hong, LIU Wei. Reservoir characteristics in the near region of thermal recovery wells and their effects on development of oilfield in the later period of steam stimulation[J]. Editorial office of ACTA PETROLEI SINICA, 2005, 26(3): 74-77.

[1]	刘月亮, 刘辰, 刘鑫磊. 致密油注CO₂提高采收率机理及技术研究现状与展望[J]. 石油学报, 2026, 47(1): 198-216.
[2]	王同涛, 杨春和, 廖友强, 陈卫忠, 周辉, 胡大伟, 谢冬洲, 贺涛, 郭文博. 大型盐穴储能库地质力学物理模拟实验装置研制与应用[J]. 石油学报, 2026, 47(1): 268-278.
[3]	周贤, 孟庆春, 陈洪, 曾庆桥, 曾俊淇, 王睿思, 王莉, 杜立红, 张茜, 闫雪. 冀中坳陷古潜山油藏开发与综合利用实践与展望[J]. 石油学报, 2025, 46(6): 1180-1192.
[4]	李兵兵, 闫振阳, 刘雅静, 朱维耀, 王迪, 马启鹏, 宋智勇, 刘昀枫. 微观渗流可视化技术在提高原油采收率中的应用进展[J]. 石油学报, 2025, 46(5): 994-1008.
[5]	贾爱林, 郭智, 韩江晨. 鄂尔多斯盆地致密砂岩气高效开发技术及其应用效果[J]. 石油学报, 2025, 46(1): 255-264.
[6]	王正茂, 韩旭, 潘峰, 樊宇, 阎逸群, 周小松, 李诚. 驱油用乳液聚合物性能评价与现场试验[J]. 石油学报, 2024, 45(6): 976-987.
[7]	李博良, 李宾飞, 冀延民, 盖平原, 王建, 李兆敏, 王成建. 烟道气辅助注蒸汽开采稠油增效机理及应用[J]. 石油学报, 2024, 45(3): 574-585.
[8]	宋兆杰, 邓森, 宋宜磊, 刘勇, 鲜成钢, 张江, 韩啸, 曹胜, 付兰清, 崔焕琦. 大庆油田古龙页岩油-CO₂高压相态及传质规律[J]. 石油学报, 2024, 45(2): 390-402.
[9]	王凤娇, 徐贺, 刘义坤, 杜庆龙, 张栋. 压驱技术高压降吸附提高采收率机理[J]. 石油学报, 2024, 45(2): 403-411.
[10]	贾承造. 中国石油工业上游前景与未来理论技术五大挑战[J]. 石油学报, 2024, 45(1): 1-14.
[11]	丁骞, 甘利灯, 魏乐乐, 张宇生, 杨昊, 姜晓宇, 王峣钧. 双孔隙结构因子及其在储层渗透性地震预测中的应用[J]. 石油学报, 2023, 44(2): 339-347.
[12]	孙金声, 杨景斌, 白英睿, 吕开河, 程荣超, 蒋官澄, 郝惠军, 张洁. 超分子凝胶形成机理及其在油气钻采工程领域应用现状和前景[J]. 石油学报, 2022, 43(9): 1334-1350.
[13]	端祥刚, 吴建发, 张晓伟, 胡志明, 常进, 周尚文, 陈学科, 祁灵. 四川盆地海相页岩气提高采收率研究进展与关键问题[J]. 石油学报, 2022, 43(8): 1185-1200.
[14]	孙焕泉, 刘慧卿, 王海涛, 束青林, 吴光焕, 杨元亮. 中国稠油热采开发技术与发展方向[J]. 石油学报, 2022, 43(11): 1664-1674.
[15]	王小聪, 雷群, 肖沛文, 王平美, 杨占德, 韩雪, 罗健辉, 叶银珠. 现场水配制纳米驱油剂及其驱油机理[J]. 石油学报, 2021, 42(3): 350-357.

蒸汽吞吐后期近井地带储层的变化及其对油田开发效果的影响

Reservoir characteristics in the near region of thermal recovery wells and their effects on development of oilfield in the later period of steam stimulation

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价