疏松砂岩油藏耐高温树脂固砂剂的研制

发布时间：2018-04-13 15:02

本文选题：耐高温 + 覆膜砂　；参考：《武汉工程大学》2015年硕士论文

【摘要】：我国大多数油田都属于砂岩油藏,共同特点就是出砂严重。对于孤岛油田,在其长期开采过程中,地层强度低于地层应力时,近井岩石就容易发生变形而被破坏,引起油井出砂,甚至导致油井坍塌。油井出砂是石油开采过程中经常会遇到的问题,同时它直接影响了油井的正常生产。近些年,对于油田化学领域的中、低温油井的出砂问题,已经得到了有效的解决。然而,对于高温蒸汽吞吐热采井的防砂问题,仍存在着防砂材料耐温性等性能不足而得不到有效解决的问题。因此,亟须研制出耐高温树脂防砂剂,以此来解决油田油井出砂问题。文中对以上问题进行了分析与研究,有针对性的分别研制出了两类耐高温性的防砂药剂及其防砂工艺。本论文中对影响覆膜砂固结效果的诸多因素进行分析,以固砂体系中的石英砂、固化剂、树脂、和偶联剂为主要成分,以其他添加剂(增韧剂等)为辅助成分,确定了固砂体系的最佳配方及其制备工艺,测试了固结岩心的防砂性能(抗压、抗折强度、渗透性性能),并且对固结机理、如何提高耐高温性、覆膜砂颗粒表面包覆效果等进行了深刻地探讨。对于耐高温覆膜砂,实验研究表明:两种防砂药剂成本低、化学防砂性能好、工艺较为简单。对于高温油藏用覆膜砂,室内及现场实验表明:该防砂药剂成本低廉、施工工艺简便以及各项防砂性能良好,基本达到了孤岛油田的防砂要求。
[Abstract]:Most oil fields in China belong to sandstone reservoirs, and the common characteristic is serious sand production.For Gudao Oilfield, when the formation intensity is lower than the formation stress, the rock near the well is easily deformed and destroyed, which leads to sand production and even collapse of oil well.Sand production is a common problem in oil production, which directly affects the normal production of oil wells.In recent years, the problem of sand production in low temperature oil wells has been effectively solved in the field of oil field chemistry.However, the problem of sand control in high temperature steam stimulation wells is still unsolved.Therefore, it is urgent to develop a high-temperature resin sand control agent to solve the problem of sand production in oil wells.In this paper, the above problems are analyzed and studied. Two kinds of sand control agents with high temperature resistance and sand control technology are developed.In this paper, many factors affecting the consolidation effect of coated sand are analyzed. The quartz sand, curing agent, resin and coupling agent in sand consolidation system are taken as the main components, and other additives (toughening agent, etc.) as auxiliary components.The optimum formulation of sand consolidation system and its preparation process are determined. The sand control properties (compressive, flexural strength, permeability) of the consolidated core are tested, and how to improve the high temperature resistance of the consolidation mechanism is discussed.The coating effect of coated sand particles was deeply discussed.For high temperature resistant coated sand, the experimental results show that the cost of two sand control agents is low, the chemical sand control performance is good, and the process is relatively simple.For high temperature reservoir coated sand, indoor and field experiments show that the sand control agent has the advantages of low cost, simple construction technology and good sand control performance, which basically meets the sand control requirements of Gudao Oilfield.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE39;TQ324.8

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