生态钻井液研制及其盐碱地改良效果研究

蒲磊; 许明标; 王朝飞; 陈侃; 周姗姗

doi:10.3969/j.issn.1001-5620.2019.05.011

生态钻井液研制及其盐碱地改良效果研究

doi: 10.3969/j.issn.1001-5620.2019.05.011

蒲磊¹,
许明标^1,2, ,,
王朝飞³,
陈侃²,
周姗姗²

1. 长江大学石油工程学院, 武汉 430100;
2. 非常规油气湖北省协同创新中心(长江大学), 武汉 430100;
3. 中国石油天然气股份有限公司新疆油田公司, 新疆克拉玛依 834002

基金项目:

国家自然科学基金青年基金"裂缝性漏失封堵屏障再破坏机理与稳态重构理论研究"（51804044）

详细信息

作者简介:
蒲磊,长江大学硕士研究生,现在主要从事钻井液技术研究工作。电话18086458049;E-mail:819993778@qq.com

通讯作者:
许明标,博士,教授,主要从事油气井工作液化学的研究,E-mail:xumingbiao@yangtzeu.edu.cn

中图分类号: TE254.3
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出版历程
- 收稿日期: 2019-07-03
- 刊出日期: 2019-10-30

Development of an Ecological Drilling Fluid and Its Benefits to Saline-Alkaline Soil Reclamation

1. School of Petroleum Engineering, Yangtze University, Wuhan, Hubei 430100;
2. Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtz University, Wuhan, Hubei 430100;
3. PetroChina Xinjiang Oilfield Company, Karamyi, Xinjiang 834002

摘要

摘要: 随着我国对西北部勘探开发力度的增加，同时对环保的要求也越来越严格，而传统处理工艺并不能使废弃钻井液达到低污染、低伤害的目的。针对废弃钻井液的污染问题，结合新疆多盐碱地的实际情况，利用盐碱土壤作为钻井液后期处理的场所，在基于天然材料的基础上研制了生态处理剂JH1、JH2、JH3，并开发出一套生态钻井液体系JH。并系统地评价了该体系的流变性、抗污染性、润滑性、抑制性和环保性能。实验结果表明，120℃下生态钻井液体系JH具有良好的流变性，API滤失量为3.4 mL，岩屑回收率为72.6%，线性膨胀率为11.54%，润滑系数为0.1058，具有较好的抗污染性能，能满足常规钻井的需要。生态钻井液环保性能较好，EC₅₀为89 600 mg/kg，BOD₅/COD_Cr为25.9%，易生物降解，重金属含量低于最低限值，满足排放限制标准。经过有机酸中和后施加在盐碱土壤上，有效改善了土壤的理化性质，土壤含盐量降幅达54.3%，pH值恢复至6.85，有机质含量增加了49.7%，N、P、K含量增幅59.25%~113.82%。
- 生态钻井液 /
- 盐碱土壤 /
- 环境保护 /
- 生物降解性 /
- 理化性质
Abstract: With more and more exploration performed in northwest China, environmental protection policy is becoming more rigorous. Conventional techniques are not able to treat waste muds to have acceptable contamination and damage levels. Xinjiang is rich in salinealkaline lands which can be used as waste mud disposal places. Three ecological additives, JH1, JH2 and JH3 have been developed from natural materials, and an ecological drilling fluid, JH has been formulated with the three additives. The rheology, resistance to contamination, lubricity, inhibitive capacity and environmental friendliness of the JH mud were systematically evaluated. The evaluation results showed that JH had good rheological property at 120℃, API filter loss of 3.4 mL, percent recovery of shale cuttings of 72.6% on hot rolling test, linear rate of expansion of 11.54%, friction coefficient of 0.1058, and good resistance to contamination. These data indicate that JH is able to satisfy the general requirements of drilling operation. The ecological data of JH are as follows:EC₅₀=89 600 mg/kg, BOD₅/COD_Cr=25.9%. JH is easy to biologically degrade. Heavy metal content of JH is low, satisfying the national discharge standards. The JH mud, after neutralization with organic acids, can be used to improve the quality of soil with great efficiency; a piece of saline-alkaline land was treated with the disposed waste JH mud, the saline content of the soil was reduced by 54.3%, pH of the soil restored to 6.85, organic matter content of the soil increased by 49.7%, and N, P, K contents in the soil were increased by a percentage between 59.25% and 113.82%, respectively.
- Ecological drilling fluid /
- Saline-alkali soil /
- Environmenta performance /
- Biodegradability /
- Physical and chemical properties

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参考文献(22)

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