Abstract
In the development of oil and gas fields, the failure of pressure test caused by wellbore leakage seriously affects the construction progress, and the annular pressure also brings a severe problem to the safety production, so it is necessary to restore the integrity of wellbores by plugging construction. In this paper, a kind of latex particle plugging agent is prepared based on the reverse emulsion dispersion principle, which can effectively seal micro-leakage and eliminate the drilling and grinding process. Latex particle plugging agent is a low viscosity aqueous solution system. During construction, latex particles with a size distribution from micron to millimeter scale enter into the leakage throat under pressure, under the effect of formation temperature and pressure, latex particles coalesced each other form colloid and block the fluid channel. The residual plugging agent in the tube is liquid, which can be directly discharged back from wellbores. The laboratory test results show that for the thread leakage with a pressure drop of 1.1 MPa/min at 22 MPa, the pressure drop in 30min is 0.56 MPa under 55 MPa after plugging, which conform to the wellbore pressure testing standards (<0.7 MPa). The field test is carried out in a natural gas vertical well, leakage point position in the range of 1141.89–1199.25 m, the testing pressure dropped from 20.0 MPa to 0 in 30 min initially. After plugging, the water pressure testing shows no pressure drop at 25 MPa within 30 min. The plugging agent is water-based solution, environmental friendly and low cost, which conducive to large-scale field use.
Copyright 2023, IFEDC Organizing Committee.
This paper was prepared for presentation at the 2023 International Field Exploration and Development Conference in Wuhan, China, 20–22 September 2023.
This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Technical Team and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Technical Committee its members. Papers presented at the Conference are subject to publication review by Professional Team of IFEDC Technical Committee. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of IFEDC Organizing Committee is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.
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References
Feng, X., Kou, M., **ong, S., et al.: Discussion on sealing technology of casing leakage. Drill. Prod. Technol. 41(2), 127–129 (2018)
Zhao, M., Shu, M., Li, Y., et al.: Technical countermeasures and practice of leakage poof and plugging by production casing in Fuling Shale Gas Field. Explor. Eng. Rock Soil Drill. Tunnel. 43(7), 37–41 (2016)
Lv, S., Li, H., Teng, X.: Summarizing of failure analysis on tubing and casing galling and leakage. Oil Field Equip. 40(4), 21–25 (2011)
Wang, X., Yang, L., He, Z.: Intelligent gel and micro-dilatancy cement plugging technology on casing destroyed well. Drill. Fluid Compl. Fluid 30(6), 17–20 (2013)
Cheng, J., Zhou, Q., Zhou, W.: Plugging method of polymer gel with controllable low initial viscosity for dominate flow paths in deep reservoirs and its application. Acta Petrolei Sinica 41(8), 969–978 (2020)
Lei, X., Chen, D., Li, X.: Research on slow-release self-healing technology of oil-well cement. Drill. Fluid Compl. Fluid 30(5), 60–62 (2013)
Chivvis, R., Julian, J., Caryd, N.: Pressure activated sealant economically repairs casing leaks on Prudhoe bay wells. SPE 120978 (2009)
Singh, A., Patil, B., Kishore, K., et al.: Research Casing leak investigation & successful repair by application of pressure activated liquid sealant in a newly completed well in offshore environment-a case study. SPE 173826 (2015)
Guo, L., **ao, M., Liu, J.: Pressure activated sealant. Drill. Fluid Compl. Fluid 32(1), 65–68 (2015)
**ng, X., Xu, L., Feng, H., et al.: A differential pressure activated sealant: preparation, sealing performance and working mechanisms. Drill. Fluid Compl. Fluid 36(6), 789–794 (2019)
Xu, L., Jiang, M., Xu, J., et al.: Design and plugging property of composite pressure activated sealant. Nat. Gas. Ind. 40(3), 107–114 (2020)
Xu, L., Liu, S., Xu, M., et al.: Self-adaptive repair behavior and mechanism of micro-defects of differential pressure activated sealant. Acta Petrolei Sinica 42(5), 686–694 (2021)
Gu, Q., Zhang, K., Hu, C., et al.: The breaking process of core-shell emulsion affected by electrolytes. Chinese J. Appl. Chem. 23(2), 122–125 (2006)
Wei, B., Chang, Q., Bao, C., et al.: Surface modification of filter medium particles with silane coupling agent KH550. Colloids Surf. A 434(19), 276–280 (2013)
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Yang, J., Yin, Xm., Wang, Xq., Mao, Jj., Chen, Wl. (2024). Study and Application of Latex Particle Plugging Agent. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2023. IFEDC 2023. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-97-0256-5_98
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DOI: https://doi.org/10.1007/978-981-97-0256-5_98
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