新疆超稠油油藏采出砂调剖技术研究及应用

doi:10.3969/j.issn.1006-6535.2021.04.024

特种油气藏 ›› 2021, Vol. 28 ›› Issue (4): 170-174.DOI: 10.3969/j.issn.1006-6535.2021.04.024

• 钻采工程 • 上一篇

新疆超稠油油藏采出砂调剖技术研究及应用

吕柏林¹, 邢向荣¹, 樊靖文², 胡鹏程¹, 马鹏¹, 杨春¹

1.中国石油新疆油田分公司,新疆克拉玛依 834000;
2.克拉玛依国勘石油技术有限公司,新疆克拉玛依 834099

收稿日期:2020-08-25 修回日期:2021-05-23 发布日期:2022-02-18
作者简介:吕柏林(1989—),男,工程师,2010年毕业于西南石油大学石油工程专业,现从事油田开发工作。
基金资助:
中国石油重大专项“新疆油田浅层稠油稳产提效技术研究与应用”(2017E-0408)

Study and Application of Profile Control Technology of Produced Sand in Super Heavy Oil Reservoir, Xinjiang

Lyu Bolin¹, Xing Xiangrong¹, Fan Jingwen², Hu Pengcheng¹, Ma Peng¹, Yang Chun¹

1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
2. Karamay FOR-ENERGY Petroleum Technology Co., Ltd., Karamay, Xinjiang 834099, China

Received:2020-08-25 Revised:2021-05-23 Published:2022-02-18

摘要/Abstract

摘要： 针对注蒸汽热采稠油油藏非均质性严重、中低渗层动用状况差、高渗层汽窜干扰严重等问题,通过室内实验,向油田采出砂中加入固化剂(无机盐类)、分散剂(膨润土)、促凝剂(片碱),自主研制出新型KWF复合堵剂。其具有固化时间可调(3～300 h)、抗压大于6 MPa、耐温大于350 ℃的特点。该体系在注入高渗汽窜通道后与地层岩石胶结,封堵率大于85%,且不损害中低渗透层。现场应用表明,该体系可有效封堵大孔道,提高产油量,阶段累计增油可达1 057 t。采出砂调剖技术既解决了采出砂的环境污染问题,又降低了稠油热采开发成本,对提高油田最终采收率和经济效益具有重要意义。

关键词: 超稠油, 采出砂, 调剖, 固化剂, 汽窜干扰, 动用程度

Abstract: In view of the severe heterogeneity of thermal stimulation with steam injection in heavy oil reservoirs, the poor development conditions of low-and medium-permeability layers, and the serious interference of steam channeling in high-permeability layers, a new KWF compound plugging agent was developed independently by indoor experiments where curing agent (inorganic salt), dispersant (bentonite) and coagulant (caustic soda) were added to the produced sand of the oilfield through. The new plugging agent was featured by adjustable curing time (3 to 300 h), and resistance to pressure of greater than 6 MPa and temperature of greater than 350 ℃. After the plugging agent was injected into the high-permeability steam channeling, the system was cemented with the formation rock and the sealing rate was more than 85%, without any damage to the low-and medium-permeability layers. The field application showed that the system effectively blocked the big pores and enhanced the oil production, and the cumulative oil production was increased by 1 057 t. The produced sand profile control technology not only solves the environmental pollution caused by produced sand, but also reduces the cost of thermal recovery of heavy oil, with great significance for improving the final recovery efficiency and commercial benefits of the oilfield.

Key words: ultra-heavy oil, produced sand, profile control, curing agent, steam channeling interference, development degree

中图分类号:

TE345

吕柏林, 邢向荣, 樊靖文, 胡鹏程, 马鹏, 杨春. 新疆超稠油油藏采出砂调剖技术研究及应用[J]. 特种油气藏, 2021, 28(4): 170-174.

Lyu Bolin, Xing Xiangrong, Fan Jingwen, Hu Pengcheng, Ma Peng, Yang Chun. Study and Application of Profile Control Technology of Produced Sand in Super Heavy Oil Reservoir, Xinjiang[J]. Special Oil & Gas Reservoirs, 2021, 28(4): 170-174.

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新疆超稠油油藏采出砂调剖技术研究及应用

Study and Application of Profile Control Technology of Produced Sand in Super Heavy Oil Reservoir, Xinjiang

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