钻井液用微孔喉封堵材料合成及性能研究

doi:10.3969/j.issn.1006-396X.2022.02.008

摘要/Abstract

摘要：

采用乳液聚合法制备出一种微孔喉封堵材料。通过FT?IR光谱、拉曼光谱及TG?DTA热分析，对微孔喉封堵材料的结构特征进行分析。通过激光粒度仪确定合成产物的粒径范围，探究了微孔喉封堵材料的抑制性能和封堵性能。结果表明，合成产物的热分解温度为321.0 ℃，粒径分布为500~2 250 nm；当微孔喉封堵材料质量分数为1.5%时，该材料表现出极佳的抑制黏土水化性能；微孔喉封堵材料与质量分数为0.5%的氯化钠复配使用后，抑制效果显著提升。滤膜封堵实验证实其对0.45~10.00 μm孔径的滤膜进行有效封堵，微孔喉封堵材料质量分数为1.5%时封堵时间长达35.43 min；经120 ℃老化16 h后，高温高压滤失量为10.0 mL。

关键词: 微孔喉封堵材料, 抑制作用, 复配, 水基钻井液

Abstract:

A micropore throat plugging material was prepared by emulsion polymerization. Its structural characteristics were analyzed by Fourier transform infrared (FT?IR) spectrum analysis, Raman spectrum analysis, and thermogravimetric?differential thermal analysis (TG?DTA). The particle size range of the synthesized product was determined by a laser particle size analyzer. The inhibition performance and plugging performance of the micropore throat plugging material were also investigated. The results show that the thermal decomposition temperature of the synthesized product is 321.0 °C and that its particle size distribution is between 500 nm and 2 250 nm. When the quantity of the micropore throat protection material used is 1.5%, it performs excellently in inhibiting clay hydration. Moreover, the inhibition effect significantly improves when the micropore throat plugging material is compounded with 0.5% sodium chloride. The filter membrane plugging experiment proves that the filter membrane with a pore diameter of 0.45~10.00 μm can be effectively plugged by the proposed material, and the plugging time is up to 35.43 min when the plugging quantity is 1.5%. After aging at 120 °C for 16 h, the high temperature and high pressure filtration loss is 10.0 mL when the amount of the micropore throat plugging material added is 1.5%.

Key words: Micropore throat plugging material, Inhibition effect, Compounding, Water?based drilling fluid

中图分类号:

TE254

王效坤, 李丽华, 杨超, 孙中伟, 马诚. 钻井液用微孔喉封堵材料合成及性能研究[J]. 石油化工高等学校学报, 2022, 35(2): 50-55.

Xiaokun Wang, Lihua Li, Chao Yang, Zhongwei Sun, Cheng Ma. The Synthesis and Properties of Microporous Throat Plugging Materials for Drilling Fluid[J]. Journal of Petrochemical Universities, 2022, 35(2): 50-55.

图/表 12

图1 微孔喉封堵材料的FT?IR谱图

Fig.1 FT?IR spectroscopic analysis of micropore?throat plugging material

图2 微孔喉封堵材料的拉曼光谱图

Fig.2 Raman spectroscopic analysis of micropore throat plugging material

图3 微孔喉封堵材料的TG?DTA谱图

Fig.3 TG?DTA spectrum of micropore?throat plugging material

图4 微孔喉封堵材料的粒度分布

Fig.4 Grannlar distribution of microporous throat plugging material

图5 微孔喉封堵材料膨胀曲线

Fig.5 Expansion curve of microporous throat plugging material

图6 微孔喉封堵材料处理后膨润土与水处理后膨润土的XRD对比

Fig.6 XRD comparison of Bentonite after micro pore throat plugging material preparation and after water treatment

图7 泥球浸泡(浸泡条件/时间)

Fig.7 Mud ball soaking (soaking condition/days)

图8 微孔喉封堵材料的质量分数对滤膜封堵时间的影响

Fig.8 Influence of the mass content of microporous throat plugging material on the plugging time of filter membrane

图9 1.5%微孔喉封堵材料对不同孔径滤膜封堵时间的影响

Fig.9 Influence of 1.5% microporous throat plugging material on the plugging time of filter membrane with defferent pore size

表1 微孔喉封堵材料质量分数对水基钻井液性能的影响 (of water?based drilling fluid)

Table 1 Influence of the mass content of microporous throat plugging material on the performance

w（封堵材料）/%	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
w（封堵材料）/%	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
0	60.5	50.0	10.5	3.0	-
0	48.0	40.0	8.0	3.4	12.8
0.5	64.5	58.0	6.5	3.5	-
0.5	53.5	46.0	7.5	3.7	11.6
1.0	64.0	51.0	13.0	3.2	-
1.0	48.5	40.0	8.5	3.4	9.6
1.5	64.0	55.0	9.0	3.6	-
1.5	54.5	50.0	4.5	3.7	10.0
2.0	64.0	55.0	9.0	3.4	-
2.0	51.0	42.0	9.0	3.2	10.0
3.0	62.5	54.0	8.5	3.2	-
3.0	59.5	49.0	10.5	3.4	9.6

表1 微孔喉封堵材料质量分数对水基钻井液性能的影响 (of water?based drilling fluid)

Table 1 Influence of the mass content of microporous throat plugging material on the performance

w（封堵材料）/%	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
w（封堵材料）/%	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
0	60.5	50.0	10.5	3.0	-
0	48.0	40.0	8.0	3.4	12.8
0.5	64.5	58.0	6.5	3.5	-
0.5	53.5	46.0	7.5	3.7	11.6
1.0	64.0	51.0	13.0	3.2	-
1.0	48.5	40.0	8.5	3.4	9.6
1.5	64.0	55.0	9.0	3.6	-
1.5	54.5	50.0	4.5	3.7	10.0
2.0	64.0	55.0	9.0	3.4	-
2.0	51.0	42.0	9.0	3.2	10.0
3.0	62.5	54.0	8.5	3.2	-
3.0	59.5	49.0	10.5	3.4	9.6

表2 温度对水基钻井液性能的影响

Table 2 Influence of temperature on the performance of water?based drilling fluids

温度/℃	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
温度/℃	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
100	59.0	51.0	8.0	3.4	-
100	54.0	44.0	10.0	3.8	10.0
110	62.5	52.0	10.5	3.2	-
110	63.0	51.0	12.0	3.2	8.4
120	65.5	52.0	13.5	3.2
120	59.5	50.0	9.5	3.4	10.0
130	67.5	55.0	12.5	3.0	-
130	68.5	57.0	11.5	2.8	10.4
140	67.5	58.0	9.5	3.2	-
140	46.0	38.0	8.0	3.0	12.0

表2 温度对水基钻井液性能的影响

Table 2 Influence of temperature on the performance of water?based drilling fluids

温度/℃	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
温度/℃	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
100	59.0	51.0	8.0	3.4	-
100	54.0	44.0	10.0	3.8	10.0
110	62.5	52.0	10.5	3.2	-
110	63.0	51.0	12.0	3.2	8.4
120	65.5	52.0	13.5	3.2
120	59.5	50.0	9.5	3.4	10.0
130	67.5	55.0	12.5	3.0	-
130	68.5	57.0	11.5	2.8	10.4
140	67.5	58.0	9.5	3.2	-
140	46.0	38.0	8.0	3.0	12.0

表3 120 ℃下老化时间对水基钻井液性能的影响

Table 3 Influence of time on water?based drilling fluid performance

时间/h	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
时间/h	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
0	65.5	52.0	13.5	3.2	-
16	59.5	50.0	9.5	3.4	10.0
32	45.0	39.0	6.0	3.0	10.0
48	24.0	23.0	1.0	3.2	20.4

表3 120 ℃下老化时间对水基钻井液性能的影响

Table 3 Influence of time on water?based drilling fluid performance

时间/h	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	滤失量/mL
时间/h	AV/(mPa $⋅$ s)	PV/(mPa $⋅$ s)	YP/Pa	静态	动态
0	65.5	52.0	13.5	3.2	-
16	59.5	50.0	9.5	3.4	10.0
32	45.0	39.0	6.0	3.0	10.0
48	24.0	23.0	1.0	3.2	20.4

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