棕榈油基钻井液降滤失剂的研制

张瑞; 徐加放; 顾甜甜; 丁廷稷; 于政廉; 李力文; 罗海

doi:10.3969/j.issn.1001-5620.2017.06.006

棕榈油基钻井液降滤失剂的研制

doi: 10.3969/j.issn.1001-5620.2017.06.006

中国石油大学(华东)石油工程学院w海洋水下设备试验与检测技术国家工程实验室, 山东青岛 266580

基金项目:

973项目“海洋深水油气安全高效钻完井基础研究”（2015CB251200），国家重点研发计划“极地冰区钻井防寒工艺技术研究”（2016YFC0303408）。

详细信息

作者简介:
张瑞,现在主要从事钻井液体系及处理剂的研究。电话13053390788;E-mail:s15020355@s.upc.edu.cn。

中图分类号: TE254.4
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出版历程
- 收稿日期: 2017-09-05
- 刊出日期: 2017-11-30

Development of a Filter Loss Reducer for Palm Oil Base Drilling Fluid

National Engineering Laboratory for Subsea Equipment Testing and Detection Technology, School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580

摘要

摘要: 棕榈油不仅具有生物降解性强、成本低、环境友好等优点，还具备了油基钻井液基液的基本功能。但由于棕榈油的组分结构与柴油、白油等存在较大区别，目前市场上的降滤失剂不适用于棕榈油基钻井液，因此需要研制适用于棕榈油的降滤失剂。分别采用干法、湿法和酰氯法对棕榈油基钻井液降滤失剂进行制备及优选，并对优选出的降滤失剂进行性能评价。结果表明，用湿法由有机改性剂SAA-6与腐植酸钠通过离子吸附反应得到的降滤失剂FLA效果最好，在棕榈油中的胶体率达到92%，最佳反应条件为95℃、2 h，腐植酸钠与有机物比为5.5。将5% FLA加入到棕榈油基钻井液中，棕榈油基钻井液的API滤失量降为4 mL以下，动切力在8 Pa左右，表现出了良好的降滤失效果，并且加入FLA的棕榈油基钻井液体系的热稳定性良好，抗高温达150℃，高温高压滤失量低于9 mL。通过实验证明，该体系抑制性、润滑性、抗污染性能、保护油气层性能以及生物毒性等能够基本满足现场钻井的需要，为促进棕榈油在钻井液领域的应用提供了实验基础。
- 油基钻井液 /
- 棕榈油 /
- 降滤失剂 /
- 腐植酸钠 /
- 有机改性剂 /
- 环境保护
Abstract: Palm oil has the advantages of good biodegradability, low cost and being environmentally friendly. It can be used as the base fluid of oil base drilling fluid. Palm oil has different components and molecular structures than those of diesel oil and white oil, and filter loss reducers presently available for use in conventional oil base drilling fluids cannot be used in palm oil base drilling fluid, and it is thus necessary to develop filter loss reducers special for use in palm oil base drilling fluid. Dry method, wet method and chloroformylation reaction were used to prepare and optimize filter loss reducers for palm oil base drilling fluid. Evaluation of the performance of the optimized filter loss reducer indicated that a filter loss reducer FLA made from SAA-6 (an organic modifying agent) and sodium humate through ionic adsorption reaction (wet method) had the best performance. FLA had colloidal coefficient of 92% in palm oil drilling fluid, and the optimum reaction conditions for the production of FLA was 95℃, 2 h of reaction time, and ratio of sodium humate to SAA-6 of 5.5. A palm oil drilling fluid treated with 5% FLA had API filtration rate of less than 4 mL and yield point of about 8 Pa, demonstrating good filtration behavior. The FLA treated palm oil drilling fluid had good thermal stability; it functioned properly at 150℃, and had HTHP filter loss of less than 9 mL. Laboratory experiments showed that this drilling fluid had inhibitive capacity, lubricity, contamination resistance, reservoir protective capacity and bio-toxicity that all satisfied the needs of drilling operations. This study provides an experimental base for the application of palm oil in drilling fluids.
- Drilling fluid /
- Filter loss reducer /
- Sodium humate /
- Filter loss reduction /
- Organic modifying agent /
- Palm oil

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参考文献(15)

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