基于3D扫描打印技术的裂缝性堵漏模拟新方法

王涛; 叶艳; 朱金智; 张震; 陆海瑛; 李城里; 孙振玮

doi:10.12358/j.issn.1001-5620.2023.05.004

基于3D扫描打印技术的裂缝性堵漏模拟新方法

doi: 10.12358/j.issn.1001-5620.2023.05.004

王涛^{1, 2,},
叶艳^3, ,,
朱金智²,
张震²,
陆海瑛²,
李城里²,
孙振玮²

1.
中国石油大学（华东）石油工程学院，山东青岛 266580
2.
塔里木油田分公司, 新疆库尔勒 841000
3.
中国石油大学(北京)石油工程学院, 北京 102249

基金项目: 塔里木油田项目“钻井堵漏大物模实验研究”（201021102441）。

详细信息

作者简介:
王涛，现在主要从事钻井液、完井液技术研究工作。E-mail：wangtao4-tlm@petrochina.com.cn。

通讯作者:
叶艳，E-mail：yeyan@cup.edu.cn。

中图分类号: TE282
计量
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- HTML全文浏览量: 88
- PDF下载量: 58
- 被引次数: 0
出版历程
- 收稿日期: 2023-04-02
- 修回日期: 2023-05-16
- 刊出日期: 2023-12-25

Research on a New Method for Simulation of Fractured Plugging Based on 3D Scanning and Printing Technology

WANG Tao^{1, 2
,},
YE Yan^{3
, ,},
ZHU Jinzhi²,
ZHANG Zhen²,
LU Haiying²,
LI Chengli²,
SUN Zhenwei²

1.
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580
2.
PetroChina Tarim Oilfield Company, Korla, Xinjiang 841000
3.
School of Petroleum Engineering, China University of Petroleum, Beijing 102249

摘要

摘要: 塔里木油田博孜区块钻井过程中漏失频发，钻井液损失量大，造成巨大的经济损失，是目前该区块勘探开发的一大难点。现有的传统裂缝堵漏模拟方法较难真实模拟井下裂缝条件，导致室内实验效果与现场应用差异较大。以博孜区块为例，通过对其储层特征进行分析，明确储层漏失成因为天然裂缝漏失与薄弱地层破裂；基于3D扫描打印技术，制作具有储层真实裂缝特征的仿真缝板，以此为核心建立了一种裂缝性堵漏模拟新方法，使用自主研制的堵漏仪器开展了不同裂缝宽度下的堵漏配方评价实验。实验结果表明，裂缝性堵漏模拟新方法适用于多尺度裂缝性地层堵漏配方模拟评价，能够为针对裂缝性漏失的现场堵漏配方测试提供有力支持。
- 裂缝粗糙度 /
- 堵漏模拟 /
- 3D扫描打印技术 /
- 评价仪器
Abstract: The frequent leakage and large loss of drilling fluid during drilling in Bozi area of Tarim Oilfield have caused huge economic losses, which is a major difficulty in exploration and development in this area at present. The existing traditional fracture plugging simulation method is difficult to simulate the downhole fracture conditions, resulting in a large difference between the indoor experimental results and the field application. Taking the Bozi area as an example, through the analysis of its reservoir characteristics, it is clear that the reservoir leakage is caused by natural fracture leakage and weak formation fracture; Based on 3D scanning and printing technology, a simulation fracture plate with real fracture characteristics of the reservoir is made, and a new method of fracture plugging simulation is established with this as the core. The evaluation experiment of plugging formula under different fracture widths is carried out using self-developed plugging instrument. The experimental results show that the new method of fracture plugging simulation is applicable to the simulation and evaluation of the plugging formula in multi-scale fractured formations, and can provide strong support for the on-site testing of the plugging formula for fracture loss.
- Crack roughness /
- Plugging simulation /
- 3D scanning printing technology /
- Evaluation instrument

HTML全文

图 1 博孜区块储层岩心裂缝情况

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图 2 博孜区块储层岩心的CT扫描

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图 3 仿真缝板制作流程

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图 4 缝板堵漏模拟评价装置

注：仪器主要参数为：①工作压力：0～40 MPa；②工作温度：室温～150 ℃；③裂缝闭合压力：0～40 MPa；④堵漏液用量：4 L；⑤缝板规格：0～5 mm缝板。

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图 5 裂缝性地层堵漏模拟新方法实验步骤流程图

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图 6 堵漏效果模拟实验结果示意图

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图 7 不同配方压力曲线与封堵体对比

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表 1 博孜区块岩心裂缝发育情况

井号	岩性	取心长度/m	裂缝数/条	线密度/（条/m）	缝宽/mm	主要充填方式
博孜301	中粗砂岩	17.34	132	7.60	0.10～3.00	半充填/完全充填
博孜15	中-粗砂岩	8.50	11	1.30	0.10～2.00	未充填
博孜1801	细砾岩、砂砾岩	4.65	17	3.70	0.01～0.12	未充填
博孜1203	细砂岩、中砂岩	15.91	73	4.59	0.10～1.00	未充填/半-全充填

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表 2 裂缝粗糙度、迂曲度参数数据

组号	数据来源	裂缝粗糙度			裂缝迂曲度
组号	数据来源	Z₂	JRC	误差/%	τ_x	τ_y	τ	误差/%
1^#	博孜12井目的层取心	1.930	41.458		0.984	1.125	1.052
	树脂打印缝板	1.863	40.974	1.17	0.974	1.103	1.036	1.52
	金属打印缝板	1.989	41.897	1.06	0.991	1.148	1.067	1.43
2^#	博孜1203井目的层取心	3.427	49.541		0.992	1.174	1.079
	树脂打印缝板	3.215	48.668	1.76	0.981	1.151	1.063	1.48
	金属打印缝板	3.602	50.271	1.47	1.003	1.191	1.093	1.30

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表 3 实验所用堵漏材料相关参数

堵漏材料系列	组分	材料型号	粒径/目	形貌
QSD系列	硬质果壳	QSD-1	9～30	颗粒状
QSD系列	硬质果壳	QSD-2	6～20	颗粒状
KGD系列	方解石	KGD-1	30～70	颗粒状
		KGD-2	20～40	颗粒状
		KGD-3	9～24	颗粒状
		KGD-4	5～16	颗粒状
		KGD-5	3～6	颗粒状
BYD系列	高分子化合物			粉末状

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表 4 不同尺度缝宽堵漏配方及实验结果

缝宽/ mm	实验序号	堵漏配方	浓度/ %	最高承压/ MPa	累积漏失量/ mL
1	①	0.4%QSD-1+0.4%KGD-3+3.1%KGD-2+3.1%KGD-1+2%BYD	9	21.47	134
	②	0.7%QSD-1+0.8%KGD-3+2.1%KGD-2+3.4%KGD-1+2%BYD	9	24.03	121
	③	1.2%QSD-1+1.3%KGD-3+2%KGD-2+2.5%KGD-1+2%BYD	9	16.22	242
3	④	4%KGD-3+3%KGD-2+3%KGD-1 +4%BYD	14	0	2000
	⑤	2%KGD-4+4%KGD-3+3%KGD-2+3%KGD-1 +4%BYD	16	14.47	367
	⑥	4%KGD-4+4%KGD-3+3%KGD-2+3%KGD-1 +4%BYD	18	16.09	259
5	⑦	3%KGD-4+4%KGD-3+4%KGD-2+3%KGD-1+4%BYD	18	0	2000
	⑧	3%KGD-5+3%KGD-4+4%KGD-3+4%KGD-2 +3%KGD-1+4%BYD	21	17.40	230
	⑨	6% KGD-5+3%KGD-4+4%KGD-3+4%KGD-2 +3%KGD-1+4%BYD	24	9.92	576

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