钻井液性能对火山碎屑岩崩解性的影响——以青海阿克楚克塞矿区火山碎屑岩为例

doi:10.13278/j.cnki.jjuese.20180015

吉林大学学报(地球科学版) ›› 2019, Vol. 49 ›› Issue (4): 1093-1099.doi: 10.13278/j.cnki.jjuese.20180015

钻井液性能对火山碎屑岩崩解性的影响——以青海阿克楚克塞矿区火山碎屑岩为例

王福平¹, 李刚¹, 高元宏^2,3, 段隆臣⁴, 刘海声^2,3

1. 吉林大学应用技术学院, 长春 130021;
2. 青海省第二地质矿产勘查院, 西宁 810028;
3. 青海省岩心钻探工程技术研究中心, 西宁 810028;
4. 中国地质大学(武汉)工程学院, 武汉 430074

收稿日期:2018-01-22 出版日期:2019-07-26 发布日期:2019-07-26
通讯作者: 李刚(1986-),男,博士研究生,讲师,主要从事钻探工艺及钻井液应用方面的研究,E-mail:ligcl@jlu.edu.cn E-mail:ligcl@jlu.edu.cn
作者简介:王福平(1964-),男,副教授,主要从事钻井液应用方面的研究,E-mail:wangfp@jlu.edu.cn
基金资助:
青海省科技计划项目（2015-SF-211）

Effect of Drilling Fluid Properties on Pyroclastic Rock Collapsing: A Case Study of Pyroclastic Rock in Akechukesai Mining Area of Qinghai

Wang Fuping¹, Li Gang¹, Gao Yuanhong^2,3, Duan Longchen⁴, Liu Haisheng^2,3

1. Applied Technology College of Jilin University, Changchun 130021, China;
2. Qinghai Second Institute of Geology and Mineral Resources Exploration, Xining 810028, China;
3. Qinghai Core Drilling Engineering Technology Research Center, Xining 810028, China;
4. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China

Received:2018-01-22 Online:2019-07-26 Published:2019-07-26
Supported by:
Supported by Science and Technology Project of Qinghai Province(2015-SF-211)

摘要/Abstract

摘要： 为解决火山碎屑岩在钻进中易剥落、易崩塌的问题，探讨钻井液性能对火山碎屑岩崩解性的影响，以青海阿克楚克塞矿区火山碎屑岩为例，分析了其岩石样品的矿物成分，进行了岩石样品烘干和浸水循环实验，采用多元线性回归分析法分析了原1^#、2^#钻井液的主要参数和耐崩解性指数之间的关系。结果表明，钻井液的动塑比、静切力、失水量和漏斗黏度4项性能指标与火山碎屑岩崩解性的相关性可达83.37%，其中动塑比对火山碎屑岩崩解性的影响尤为显著。通过调整水解聚丙烯酰胺和褐煤树脂质量分数提高了钻井液的动塑比和稳定性，从而获得优选钻井液配方：水+4%膨润土+3% Na₂CO₃+0.1% NaOH+0.15% MV-CMC（中黏钠羧甲基纤维素）+0.5% LV-CMC（低黏钠羧甲基纤维素）+2% SPNH（褐煤树脂）+0.08% PHP（水解聚丙烯酰胺）。现场应用表明，钻进至429.00 m深度时使用优选钻井液孔底沉渣厚度较1^#钻井液降低了89.7%，较2^#钻井液降低了80.3%。

关键词: 阿克楚克塞, 火山碎屑岩, 耐崩解性指数, 钻井液性能

Abstract: In order to solve the problem of exfoliation and collapse of pyroclastic rocks during drilling, the authors studied the effect of drilling fluid performance on the disintegration of pyroclastic rocks. The samples of pyroclastic rocks in the Akechukesai mining area of Qinghai were taken to analyze the mineral composition of rocks, and the sample drying and soaking cycle experiments were carried out. The relationship between the main parameters of the original 1^# and 2^# drilling fluids and the slake durability index was analyzed by multiple linear regression analysis. It shows that the correlation between the dynamic performance ratio, static shear force, water loss, funnel viscosity of the drilling fluid and the disintegration of pyroclastic rocks can reach 83.37%. The effect of dynamic plastic ratio on the collapsing of pyroclastic rocks is particularly significant. By adjusting the mass fraction of hydrolyzed polyacrylamide and lignite resin to improve the dynamic fluid ratio and stability of the drilling fluid, the drilling fluid formulation is optimized as:water +4% bentonite +3% sodium carbonate +0.1% sodium hydroxide +0.15% medium viscosity sodium carboxymethyl cellulose +0.5% low viscosity sodium carboxymethyl cellulose +2% lignite resin + 0.08% hydrolyzed polyacrylamide. The field application results show that when drilling to the depth of 429.00 m, the thickness of residual cuttings at the bottom of the hole with the optimized drilling fluid is 89.7% lower than that with the 1^# drilling fluid, and 80.3% lower than that with the 2^# drilling fluid.

Key words: Akechukesai, pyroclastic rock, slake durability index, drilling fluid properties

中图分类号:

P634.6

王福平, 李刚, 高元宏, 段隆臣, 刘海声. 钻井液性能对火山碎屑岩崩解性的影响——以青海阿克楚克塞矿区火山碎屑岩为例[J]. 吉林大学学报(地球科学版), 2019, 49(4): 1093-1099.

Wang Fuping, Li Gang, Gao Yuanhong, Duan Longchen, Liu Haisheng. Effect of Drilling Fluid Properties on Pyroclastic Rock Collapsing: A Case Study of Pyroclastic Rock in Akechukesai Mining Area of Qinghai[J]. Journal of Jilin University(Earth Science Edition), 2019, 49(4): 1093-1099.

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钻井液性能对火山碎屑岩崩解性的影响——以青海阿克楚克塞矿区火山碎屑岩为例

Effect of Drilling Fluid Properties on Pyroclastic Rock Collapsing: A Case Study of Pyroclastic Rock in Akechukesai Mining Area of Qinghai

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