A list of wells where inverted oil-emulsion cement slurry IOECS-2 was used.
Inverted oil-emulsion cement slurry was designed for cementing casing strings and installing cement plugs in the intervals that were drilled using oil-based drilling fluids (OBM). Inverted oil-emulsion cement slurry is an invert emulsion, whose external phase is a hydrocarbon liquid. The formation of cement stone at all stages of hardening of an oil-emulsion cement slurry in a well occurs without changing the kind of emulsion and inverting its phases.
Utilization of inverted oil-emulsion cement slurry IOECS-2
| № | № of well | Customer | Date | Features of application |
|---|---|---|---|---|
| 1 | №55 Machuhi | PrJSC “Naftogazvydobuvannia” | 09.03.2020 | Cement plug within the interval 5238 – 5472 m, bottomhole temperature 147 °С |
| 2 | №77 Semyrenki | PrJSC “Naftogazvydobuvannia” | 07.11.2020 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5780 – 4340 m, bottomhole temperature 140 °С |
| 3 | №1 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 31.08.2021 | Cementing of liner Ø177,8 mm within the interval 5734 – 3950 , bottomhole temperature 145 °С |
| 4 | №81 Semyrenki | PrJSC “Naftogazvydobuvannia” | 26.06.2022 | Cementing of liner Ø114,3 mm within the interval 5525 – 5175 m, bottomhole temperature 133 °С |
| 5 | №77 Semyrenki (Sidetrack drilling) | PrJSC “Naftogazvydobuvannia” | 06.08.2022 | Cementing of liner Ø140 mm within the interval 5646 – 5324 m, bottomhole temperature 139 °С |
| 6 | №74 Semyrenki | PrJSC “Naftogazvydobuvannia” | 16.09.2022 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5668 – 4500 m, bottomhole temperature 143 °С |
| 7 | №2 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 14.10.2022 | Cementing of liner Ø114,3 mm within the interval 5710 – 4927 m, bottomhole temperature 137 °С |
| 8 | №29 Ostroverhivska | PrJSC “Ukrgazvydobutok” | 14.02.2023 | Cementing of liner Ø193,7 mm within the interval 4250 – 4025 m, bottomhole temperature 125 °С |
| 9 | №3 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 20.04.2023 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5719 – 4305 m, bottomhole temperature 135 °С |
| 10 | №42 Lucenkivska | PJSC “NATURAL RESOURCES” | 07.09.2023 | Cementing of liner Ø114,3 mm, bottomhole temperature 120 °С |
| 11 | №3 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 08.09.2023 | Cement plug within the interval 5900 – 6238 m, bottomhole temperature 149 °С |
| 12 | №7 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 10.10.2023 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5860 – 4990 m, bottomhole temperature 135 °С |
| 13 | №1 Maiorivska | PrJSC “Naftogazvydobuvannia” | 07.01.2024 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 4291 – 3440,5 m, bottomhole temperature 109 °С |
| 14 | №4 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 11.02.2024 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5659 – 3701 м, bottomhole temperature 132 °С |
| 15 | №1 Maiorivska | PrJSC “Naftogazvydobuvannia” | 17.04.2024 | Cementing of liner Ø114,3 mm within the interval 5400 – 4150 m, bottomhole temperature 136 °С |
| 16 | №8 Koshevoyska | PJSC “NATURAL RESOURCES” | 16.07.2024 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5942 – 3550 m, bottomhole temperature 146 °С |
| 17 | №4 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 28.08.2024 | Cementing of liner Ø114,3 mm within the interval 6548 – 5539 m, bottomhole temperature 164 °С |
| 18 | №3 Maiorivska | PrJSC “Naftogazvydobuvannia” | 16.10.2024 | Cementing of liner Ø114,3 mm within the interval 5842 – 4643 m, bottomhole temperature 142 °С |
| 18 | №2 Maiorivska | PrJSC “Naftogazvydobuvannia” | 08.07.2025 | Cementing of liner Ø114,3 mm within the interval 5079 – 4797 m, bottomhole temperature 127 °С |
| 20 | №9 Koshevoyska | PJSC “NATURAL RESOURCES | 01.08.2025 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 6039 – 3926 m, bottomhole temperature 147 °С |
| 21 | №2 Kovalivsko-Sulymivska | PrJSC “Naftogazvydobuvannia” | 20.08.2025 | Cementing of liner Ø114,3 mm within the interval 5842 – 4643 m, bottomhole temperature 137 °С |
| 22 | №100 Yukhnivska | PrJSC “Naftogazvydobuvannia” | 07.09.2025 | Cementing of Іst stage of production casing Ø177,8 mm within the interval 5978 – 4441 m, bottomhole temperature 147 °С |
| 23 | №100 Yukhnivska | PrJSC “Naftogazvydobuvannia” | 08.11.2025 | Cementing of liner Ø114,3 mm within the interval 6439 – 5914 м, bottomhole temperature 150 °С |
