油基钻井液堵漏用共混聚合物研究

张县民; 姜雪清; 黄宁; 刘文堂; 郭建华; 王中华

doi:10.12358/j.issn.1001-5620.2021.05.008

油基钻井液堵漏用共混聚合物研究

doi: 10.12358/j.issn.1001-5620.2021.05.008

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457000

基金项目: 中石化中原石油工程有限公司博士后基金“基于高聚物相态转变的油基钻井液堵漏材料研制”（2019210B）资助

详细信息

作者简介:
张县民，1987年生，博士，现在主要从事钻井液处理剂研究工作。电话15936707986； E-mail：zhangxianmin2007@126.com

中图分类号: 254.4
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出版历程
- 收稿日期: 2021-05-06
- 录用日期: 2021-05-21
- 刊出日期: 2021-09-30

Study on Polymer Blend Used for Controlling Loss of Oil Based Drilling Fluids

Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co., Ltd., Puyang, Henan 457000

摘要

摘要: 为提高油基钻井液堵漏材料的驻留能力及封堵层的稳定性，制备一种亲油共混聚合物TP-C作为堵漏材料。该材料由非晶态亲油聚合物AP、结晶聚合物聚丙烯PP及添加剂等混炼而成。在高温油相介质中，TP-C中AP部分吸油膨胀，具有表面黏结性；PP部分具有晶格结构，可有效控制TP-C中AP部分的溶解性。在80 ℃油相介质中，TP-C吸油2～3倍，同时具有弹性变形性和黏结性。在130 ℃油相介质下，TP-C整体为高弹态，具有较好的弹性强度。通过黏结及挤压架桥的协同作用，TP-C可在光滑的裂缝缝板上有效驻留；基于TP-C复配其它材料形成的堵漏剂配方，可在2 mm的裂缝缝板中形成整体密实黏结的段塞封堵层，提高封堵层的稳定性及承压能力，承压达7.5 MPa以上，能有效封堵漏层。
- 油基钻井液 /
- 堵漏材料 /
- 共混聚合物 /
- 承压能力
Abstract: A lost circulation material (LCM) TP-C was developed for use in oil base muds to improve the residence of LCMs and the stability of the resident LCMs in fluid loss channels. TP-C is made by blending an amorphous lipophilic polymer AP, a crystalline polymer polypropylene (PP) and some other additives. In high temperature oils, the AP component of TP-C absorbs oils and swells, acquiring surface adhesion property; the PP component of TP-C has a lattice structure which is able to effectively control the solubility of the AP component. In an oil of 80 ℃, TP-C can absorb oil that is 2-3 times of the volume of TP-C itself, and also retains elastic deformability and adhesive capacity. In an oil of 130 ℃, TP-C as a whole shows high elasticity and has good elastic strength. Through the synergy of adhesion and squeezing bridging, TP-C is able to effectively reside on the slick walls of a fracture. A lost circulation control slurry formulated with TP-C and other materials was developed to control mud losses; it can form a whole densely bonded plug inside a 2 mm fracture, thereby improving the stability and pressure bearing capacity (which is at least 7.5 MPa) of the formations which are effectively plugged by the LCM slurry.
- Oil based drilling fluid /
- Lost circulation material /
- Polymer blend /
- Pressure bearing capacity.

HTML全文

图 1 不同聚合物的X射线衍射分析图

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图 2 共混聚合物TP-C的DMA分析谱图

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图 3 不同聚合物柴油体系黏度随时间变化情况

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图 4 不同聚合物的吸油倍数随时间的变化情况

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图 5 不同浓度聚合物进入封堵层的照片

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图 6 堵漏过程中挤注压力与堵漏材料挤注量的关系

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图 7 TP-C堵漏剂在裂缝中的封堵情况

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参考文献(14)

[1]	何振奎,刘霞,韩志红,等. 油基钻井液封堵技术在页岩水平井中的应用[J]. 钻采工艺,2013,36(2):101-104. doi: 10.3969/J.ISSN.1006-768X.2013.02.29 HE Zhenkui, LIU Xia, HAN Zhihong, et al. Application of oil-based drilling fluid plugging technology in shale horizontal wells[J]. Drilling & Production Technology, 2013, 36(2):101-104. doi: 10.3969/J.ISSN.1006-768X.2013.02.29
[2]	NASIRI A, SHAHRABI M A, MORAVEJI M K. Application of new eco-friendly LCMs for combating the lost circulation in heavy-weight and oil-based mud[J]. RSC advances, 2018, 8(18):9685-9696. doi: 10.1039/C7RA13668D
[3]	王灿,孙晓杰,邱正松. 油基钻井液凝胶堵漏技术实验探讨[J]. 钻井液与完井液,2016,33(6):40-44. doi: 10.3969/j.issn.1001-5620.2016.06.007 WANG Can, SUN Xiaojie, QIU Zhengsong. Experimental study on gel plugging technology of oil-based drilling fluid[J]. Drilling Fluid & Completion Fluid, 2016, 33(6):40-44. doi: 10.3969/j.issn.1001-5620.2016.06.007
[4]	刘伟,柳娜,张小平. 膨胀型油基防漏堵漏钻井液体系[J]. 钻井液与完井液,2016,33(1):11-16. LIU Wei, LIU Na, ZHANG Xiaoping. Expansive oil-based leakproof plugging drilling fluid system[J]. Drilling Fluid & Completion Fluid, 2016, 33(1):11-16.
[5]	罗米娜,艾加伟,陈馥,等. 油基钻井液用纳米材料CQ-NZC的封堵性能评价[J]. 化工进展,2015,34(5):1395-1400. LUO Minan, AI Jiawei, CHEN Fu, et al. Evaluation of plugging performance of nano-material CQ-NZC for oil-based drilling fluid[J]. Chemical Progress, 2015, 34(5):1395-1400.
[6]	王建华,李建男,闫丽丽,等. 油基钻井液用纳米聚合物封堵剂的研制[J]. 钻井液与完井液,2013,30(6):5-8. doi: 10.3969/j.issn.1001-5620.2013.06.002 WANG Jianhua, LI Jiannan, YAN Lili, et al. Development of nano-polymer plugging agent for oil-based drilling fluid[J]. Drilling Fluid & Completion Fluid, 2013, 30(6):5-8. doi: 10.3969/j.issn.1001-5620.2013.06.002
[7]	王晓亮. 高性能油基钻井液技术在YZY1HF井的应用[J]. 江汉石油职工大学学报,2020,33(162):46-48. WANG Xiaoliang. Application of high performance oil based drilling fluid technology in YZY1HF well[J]. Journal of Jianghan Petroleum Workers University, 2020, 33(162):46-48.
[8]	KUMAR A, SAVARI S, WHITFILL D, et al. Wellbore strengthening: the less-studied properties of lost-circulation materials[C]//SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2010.
[9]	ZHONG H, SHEN G, YANG P, et al. Mitigation of lost circulation in oil-based drilling fluids using oil absorbent polymers[J]. Materials, 2018, 11(10):2020. doi: 10.3390/ma11102020
[10]	邱正松,赵冲,张现斌,等. 超高温高密度油基钻井液研究与性能评价[J]. 钻井液与完井液,2021,38(6):663-670. QIU Zhengsong, ZHAO Chong, ZHANG Xianbin, et al. Research and performance evaluation of oil-based drilling fluids for ultra-HTHP wells[J]. Drilling Fluid & Completion Fluid, 2021, 38(6):663-670.
[11]	IVAN C D, BRUTON J R, MARC T, et al. Making a case for rethinking lost circulation treatments in induced fractures[C]. SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, San Antonio, Texas, 2002.
[12]	HUTTON F, PAYNE T C, JEFFREYS K, et al. Fuseable particle lost circulation material (FPLCM) system successfully controls severe lost circulation while drilling in the Elk Hills field, bakersfield, CA[C]//SPE Western Regional Meeting. Society of Petroleum Engineers, 2009.
[13]	明显森,陶怀志,陈俊斌,等. 高密度油基钻井液降黏剂及其现场应用[J]. 钻井液与完井液,2021,38(4):423-427. MING Xiansen, TAO Huaizhi, CHEN Junbin, et al. A viscosity reducer for oil based drilling fluids and its field application[J]. Drilling Fluid & Completion Fluid, 2021, 38(4):423-427.
[14]	刘永峰,张伟国,狄明利,等. 一种环保油基钻井液体系[J]. 钻井液与完井液,2021,38(4):449-455. LIU Yongfeng, ZHANG Weiguo, DI Mingli, et al. An environmentally friendly oil base mud[J]. Drilling Fluid & Completion Fluid, 2021, 38(4):449-455.