Elkatatny S, Al Moajil AM, Nasr-El-Din HA (2013a) Filter cake cleanup using HCl/Glycolic acid system. SPE Middle East Oil Gas Show Conf. https://doi.org/10.2118/164452-MS Barite (BaSO 4) is the most regularly used weighting material since the 1930s (Pehrson and Keiser, 1945). However, it has some shortcomings such as low acid solubility (Al-Bagoury and Steele, 2012), formation damage (Al-Bagoury, 2014; Guo et al., 2012), sagging issues, high plastic viscosity (Aldea et al., 2001; Mohamed et al., 2019a; Almutawa et al., 2021), and inability to be utilized in formate brines (Howard, 1995). In expansion to that, barite is not soluble in organic acids or hydrochloric acid (HCl), and this makes barite filter cake removal a sophisticated and expensive process (Bern et al., 2010). where CW before = weight of the coupon before the test in lb, CW after = weight of the coupon after the test in lb, SA = surface area of the coupon in ft 2. Oil-based mud filter cake removal Quintero et al. ( 2005) investigated a microemulsion-based treatment for calcium carbonate/barite filter cakes. The used a microemulsion comprised of water, surfactant, solvent, and co-surfactant added to brine, the microemulsion concentration range from 10 to 30% with acid concentration up to 7.5% in brine. They stated that soaking barite filter cake into the microemulsion, even without acid addition, made the filter cake more loose, porous, and changed the wettability of its solid particles. In their outcomes, combining acetic and hydrochloric acids to the microemulsion effectively removed the filter cake layer. For similar filter cakes, Quintero et al. ( 2007) presented a treatment in which formic acid is added to the microemulsion, and likewise, it was able to successfully break the filter cakes. Sayindla S, Lund B, Ytrehus JD, Saasen A (2017) Hole-cleaning performance comparison of oil-based and water-based drilling fluids. J Pet Sci Eng 159:49–57. https://doi.org/10.1016/j.petrol.2017.08.069

Weighting materials are used in the drilling fluids to increase their weight and, hence, maintain sufficient overbalanced hydrostatic pressure required throughout the drilling operation to control the well. The weighting material should render the drilling fluid with the required density while maintaining good rheology and low solids sagging tendency (Mohamed et al., 2019a; Zamora and Bell, 2004). As affirmed in the previous section, the weighting material and polymeric additive are the main components of the filter cake; therefore, finding an efficient polymer breaker and a solvent for the weighting material plays a vital role in the success of the filter cake cleanup process. In the early 20th century, Bentall rose to the challenge of the new internal combustion engine. The Bentall-designed engine was a slow running machine with small fuel consumption and was also one of the cheapest petrol engines on the market. Designed for ease in repair, the engines found themselves used for purposes as varied as driving chaff-cutters, crushers, pumps and even milking machines. Rafati R, Smith SR, Sharifi Haddad A, Novara R, Hamidi H (2018) Effect of nanoparticles on the modifications of drilling fluids properties: a review of recent advances. J Pet Sci Eng 161:61–76. https://doi.org/10.1016/j.petrol.2017.11.067 Caenn R, Chillingar GV (1996) Drilling fluids: state of the art. J Pet Sci Eng 14:221–230. https://doi.org/10.1016/0920-4105(95)00051-8Now you are in the best source of how to cut a delicate cake. All the time invested in baking that sweet cake could let you down at the crucial moment of slicing the cake. It would be best if you learned how to use a cake breaker. Hou W, Xu J (2016) Surfactant-free microemulsions. Curr Opin Colloid Interface Sci 25:67–74. https://doi.org/10.1016/j.cocis.2016.06.013 Darugar QA, Quintero L, Jones TA, Pietrangeli G (2012) Wellbore remediation using microemulsion technology to increase hydrocarbon productivity. SPE Saudi Arab Sect Tech Symp Exhib. https://doi.org/10.2118/160851-MS Iscan AG, Civan F, Kok MV (2007) Alteration of permeability by drilling fluid invasion and flow reversal. J Pet Sci Eng 58:227–244. https://doi.org/10.1016/j.petrol.2007.01.002 Gordon C, Lewis S, Tonmukayakul P (2008) Rheological properties of cement spacer: mixture effects. Houston, Texas

Hanssen JE, Jiang P, Pedersen HH, Jørgensen JF (1999) New enzyme process for downhole cleanup of reservoir drilling fluid filtercake. SPE Int Symp Oilf Chem. https://doi.org/10.2118/50709-MS Li D, He W (2015) Journey into filter cakes: a microstructural study. Int Pet Technol Conf. https://doi.org/10.2523/IPTC-18246-MS Collins N, Nzeadibe KI, Almond SW (2011) A biodegradable chelating agent designed to be an environmentally friendly filter-cake breaker. SPE Eur Heal Saf Environ Conf Oil Gas Explor Prod. https://doi.org/10.2118/140816-MS Almutawa W, Ahmed A, Basfar S, Elkatatny S, Haidary S, Zitha P (2021) Investigation of magnetite-based invert emulsion mud at high pressure high temperature. Arab J Geosci 14:1913. https://doi.org/10.1007/s12517-021-08293-8 Sebuah alat pemecah nut dengan rotor berputar dan stationare plate yang bergerigi. Rotor terdiri dari dua lapis susunan rotor bar di bagian luar dan dalam untuk mendapatkan effisiensi yang dikehendaki, dengan cara menyetel jarak antara rotor dan plate bergerigi.Suatu peralatan supaya memisahkan inti dan cangkang dengan sistem hisapan angin. Cangkang dan inti yang bercampur terdapat debu, sisa-sisa serabut dan cangkang yang halus. Pada saat fan Ltds I bekerja nut yang utuh akan jatuh ke bagian bawah dan di terima wet kernel conveyor mengikat nut yang bulat susah melayang, Habib M, Biswas RK, Ali MR, Hasan AK (2006) Leaching of non-treated ilmenite by HCl-CH 3 OH-H 2 O mixture and its kinetics. Indian J Chem Technol, 13 Alat berbentuk screw conveyor untuk menggangkut inti sawit yang masih bercampur dengan cangkang ke craced mixture elevator. Di bagian bawah conveyor ini dibuat sliding door tempat sample boy mengmbil sample untuk dianalisa efesiensinya. Enright DP, Dye WM, Smith MF (1992) An environmentally safe water-based alternative to oil muds. SPE Drill Eng 7:15–19. https://doi.org/10.2118/21937-PA

You can clean your cake breaker with lemon and vinegar. It gives better results than the methods mentioned above. From the studies shown above, it can be deduced that a combination of mutual solvent and acids can adequately remove calcium carbonate filter cakes. We recommend studying the effect of temperature on the removal efficiency of treatments that include a mutual solvent. Other mutual solvents rather than EGMBE can likewise be investigated to be used in filter cake cleanup solutions. Acid plus surfactant

Should you tap cake pans?

Ding Y, Longeron D, Renard G, Audibert A (2004) Modeling of both near-wellbore damage and natural cleanup of horizontal wells drilled with water-based drilling fluids. SPE J 9:252–264. https://doi.org/10.2118/88807-PA Zana R, Lang J (1987) Dynamic of Microemulsions. In: Friderg SE, Bothorel P (eds) Micremulsion: Structure and Dynamics. CRC Press Inc, FL, USA, p 153 Cutting fragile cakes, angel food cakes, and Victorian cakes may be an experience you would not like to remember, but do not worry anymore. Your cutting edges will be clear and precise if you practice the cake breaker and the tips described above.