抗高温高密度生物质钻井液体系研究及应用

周启成; 梁应红; 单海霞; 黄桃; 国安平; 王俊祥

doi:10.11911/syztjs.2022109

抗高温高密度生物质钻井液体系研究及应用

周启成^{1, 2,},
梁应红^{1, 2},
单海霞^{1, 2},
黄桃³,
国安平^{1, 2},
王俊祥³

1.
中石化石油工程钻完井液技术中心, 河南濮阳 457001
2.
中石化中原石油工程有限公司钻井工程技术研究院, 河南濮阳 457001
3.
中石化中原石油工程有限公司西南钻井分公司, 四川成都 611230

基金项目: 中国石化集团公司科技攻关项目“抗温抗盐生物质合成树脂降滤失剂研制”（编号：JP18038-1）、中石化石油工程公司科技攻关项目“水基钻井液用生物质合成树脂降滤失剂研制”（编号：SG19-82K）资助

详细信息

作者简介:
周启成（1988—），男，广东梅州人，2013年毕业于长江大学石油工程专业，2016年获长江大学油气井工程专业硕士学位，工程师，主要从事生物质功能材料（油田化学品）研发工作。E-mail:625687692@qq.com

中图分类号: TE254
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出版历程
- 收稿日期: 2022-03-04
- 修回日期: 2022-10-15
- 网络出版日期: 2022-11-07
- 刊出日期: 2022-12-07

Research and Application of a High-Temperature Resistant and High-Density Biomass Drilling Fluid System

ZHOU Qicheng^{1, 2,},
LIANG Yinghong^{1, 2},
SHAN Haixia^{1, 2},
HUANG Tao³,
GUO Anping^{1, 2},
WANG Junxiang³

1.
Drilling and Completion Fluid Technology Center of Sinopec Oilfield Service Corporation, Puyang, Henan, 457001, China
2.
Drilling Engineering and Technology Research Institute, Sinopec Zhongyuan Oilfield Service Corporation, Puyang, Henan, 457001, China
3.
Southwest Drilling Company, Sinopec Zhongyuan Oilfield Service Corporation, Chengdu, Sichuan, 611230, China

摘要

摘要:
为了提高抗高温高密度钻井液体系的高温稳定性及环保性能，以自主研发的生物质合成树脂降滤失剂、抑制剂和润滑剂为核心处理剂，对处理剂加量进行优化，构建了抗高温高密度生物质钻井液体系。性能评价结果表明：该体系抗温可达200 ℃，抗1.0%CaCl₂污染，岩屑滚动回收率达94.3%，润滑系数≤0.128，生物毒性EC₅₀为89 230 mg/L。现场应用表明，抗高温高密度生物质钻井液具有较好的抗污染能力，在密度达2.55 kg/L、井底温度达140 ℃的情况下其仍具有很好的流变稳定性能。抗高温高密度生物质钻井液促进了生物质资源在钻井液领域的利用，解决了高密度水基钻井液抗温性与环保性相矛盾的问题，具有较好的现场推广应用价值。
- 钻井液 /
- 生物质 /
- 高密度 /
- 环保性 /
- 稳定性 /
- 抗温性
Abstract:
In order to improve the temperature stability and environmental protection performance of a high-temperature resistant and high-density drilling fluid system, the self-developed filtrate reducers, inhibitors, and lubricants with biomass synthetic resin were taken as the core treatment agents, the dosages of the treatment agents were optimized, and a high-temperature resistant and high-density biomass drilling fluid system was constructed. The performance evaluation results showed that the system could resist temperature up to 200 °C. It also could resist CaCl₂ pollution of 1%. The rock cuttings rolling recovery was 94.3%, with the lubrication coefficient ≤ 0.128. The biological toxicity EC₅₀ value was 89 230 mg/L. The field application showed that the high-temperature resistant and high-density biomass drilling fluids could significantly resist pollution. They had excellent rheological stability when the density was up to 2.55 kg/L and the bottom hole temperature was 140 °C. The high-temperature resistant and high-density biomass drilling fluids can promote the utilization of biomass resources in the drilling fluid field and solve the trade-off between the temperature resistance and environmental protection of high-density water-based drilling fluids. Therefore, the drilling fluids have positive field promotion and application value.
- drilling fluid /
- biomass /
- high density /
- environmental protection performance /
- stability /
- temperature resistance

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图 1 生物质合成树脂降滤失剂红外光谱

Figure 1. Infrared spectroscopy of filtrate reducers with biomass synthetic resin

下载: 全尺寸图片幻灯片

图 2 不同密度抗高温高密度生物质钻井液的润滑系数

Figure 2. Lubrication coefficient of high-temperature resistant and high-density biomass drilling fluids with different densities

下载: 全尺寸图片幻灯片

表 1 基浆加入不同量降滤失剂时的基本性能

Table 1 Basic properties of drilling fluids with different dosages of filtrate reducers

降滤失剂加量，%	表观黏度/ （mPa·s）	塑性黏度/ （mPa·s）	动切力/ Pa	API滤失量/mL	高温高压滤失量/mL
2.0	28.0	18	10.0	18	58.6
4.0	30.5	17	13.5	12	26.4
6.0	32.5	15	17.5	8	22.8

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表 2 钠膨润土基浆加入不同量抑制剂时的抑制性能

Table 2 Inhibition properties of sodium bentonite drilling fluids with different dosages of inhibitors

抑制剂加量， %	表观黏度/ （mPa·s）	塑性黏度/ （mPa·s）	动切力/ Pa	相对抑制率， %
0	85.0	6	79.0
0.3	25.0	17	8.0	89.1
0.5	16.5	12	4.5	93.2
0.7	7.5	5	2.5	96.6
1.0	6.5	6	0.5	98.6

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表 3 基浆加入不同量润滑剂时的润滑性能

Table 3 Lubricating properties of drilling fluids with different lubricant contents

润滑剂加量，%	润滑系数	润滑系数减小率，%
0	0.425
0.5	0.082	80.71
1.0	0.039	90.82
1.5	0.035	91.76
2.0	0.033	92.24
2.5	0.031	92.71
3.0	0.028	93.41

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表 4 不同温度下抗高温高密度生物质钻井液的基本性能

Table 4 Basic properties of high-temperature resistant and high-density biomass drilling fluids at different temperatures

老化温度/℃	表观黏度/（mPa·s）	塑性黏度/（mPa·s）	动切力/Pa	静切力/Pa		API滤失量/mL	高温高压滤失量/mL
老化温度/℃	表观黏度/（mPa·s）	塑性黏度/（mPa·s）	动切力/Pa	初切	终切	API滤失量/mL	高温高压滤失量/mL
120	31	24	7	1.0	5.0	1.2	8
160	38	34	4	1.5	5.5	1.6	9
180	31	23	8	2.0	6.5	1.8	10
200	40	31	9	3.0	8.0	2.4	14

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表 5 不同密度抗高温高密度生物质钻井液的基本性能

Table 5 Basic properties of high-temperature resistant and high-density biomass drilling fluids with different densities

密度/（kg·L⁻¹）	表观黏度/（mPa·s）	塑性黏度/（mPa·s）	动切力/Pa	静切力/Pa		API滤失量/mL	高温高压滤失量/mL
密度/（kg·L⁻¹）	表观黏度/（mPa·s）	塑性黏度/（mPa·s）	动切力/Pa	初切	终切	API滤失量/mL	高温高压滤失量/mL
1.80	39.0	33.0	6.0	1.0	3.5	3.2	13
2.10	40.0	31.0	9.0	3.0	8.0	2.4	14
2.30	55.0	43.0	12.0	2.5	8.5	2.6	12
2.40	61.5	56.0	5.5	1.5	7.0	3.6	14

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表 6 抗高温高密度生物质钻井液环保性能测试结果

Table 6 Test results of environmental protection performance of high-temperature resistant and high-density biomass drilling fluids

名称	生物毒性EC₅₀/（mg·L⁻¹）	生物可降解性
降滤失剂LDR	620 000	0.26
抑制剂SW-A	112 000	0.47
润滑剂ZYRH-1	151 400	0.51
抗高温生物质钻井液	89 230	0.17

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表 7 不同钙离子加量下的抗高温高密度生物质钻井液性能

Table 7 Performance of high-temperature resistant and high-density biomass drilling fluids with different calcium ion dosages

氯化钙加量，%	表观黏度/ （mPa·s）	塑性黏度/ （mPa·s）	动切力/Pa	静切力/Pa		API滤失量/mL	高温高压滤失量/mL
氯化钙加量，%	表观黏度/ （mPa·s）	塑性黏度/ （mPa·s）	动切力/Pa	初切	终切	API滤失量/mL	高温高压滤失量/mL
0	30.0	22.0	8.0	2.5	8.5	1.8	12
0.2	31.0	23.0	8.0	3.5	13.5	2.2	10
0.4	30.5	25.0	5.5	3.0	11.5	2.4	10
0.8	40.0	35.0	5.0	3.0	14.0	2.8	14
1.0	55.0	46.0	9.0	4.0	19.0	3.2	16

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