«Onshore and offshore oil and gas well construction»

Improvement of a wellbore preparation quality to cementing in conditions of hydrogen sulfide conditions aggression and acquisitions

UDC: 622.24
DOI: -

Authors:

¹ Ukhta State Technical University, Ukhta, Russia

Keywords: multifunctional buffer liquid, washing-erosive, displacing-clogging (viscoelastic), adhesive-clogging portions, hydrogen sulfide aggression, absorption, clogging

Annotation:

One of the ways of cementing quality improvement, including in that one in difficult geological conditions, is the use of buffer fluids, which allow solving a number of important problems. However, the use of different types of buffer fluids in complicated geological conditions does not allow problems complete solution. Nevertheless, buffer fluids still remain the most common and effective method of high-quality preparation of a wellbore for cementing. Therefore, the development of the buffer fluid composition and its use in cementing, including that one under conditions of hydrogen sulfide aggression and absorption, is an urgent task. However using a single buffer liquid can be ineffective, so it is necessary to develop a multifunctional buffer liquid. The authors of the article present the results of research and development of a multifunctional buffer fluid, including: washing-erosive, displacing-clogging and adhesive-clogging portions, each of which performs a specific function, providing overall high-quality preparation of the wellbore for cementing under conditions of hydrogen sulfide aggression and losses.

Bibliography:

1. Mikheev M.A. Razrabotka tekhnologii i issledovanie sostavov burovykh zhidkostey, obespechivayushchikh kondensatsionnoe stseplenie tsementnogo kamnya s porodoy v intervale produktivnogo plasta: avtoref. dis. … kand. tekhn. nauk: 05.15.10. – Ukhta, 1999. – 23 s.
2. Kamenskikh S.V., Ulyasheva N.M. Issledovanie otmyvayushchey sposobnosti bufernykh zhidkostey // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2018. – № 3. – S. 21–26. – DOI: 10.30713/0130-3872-2018-3-21-26
3. Kreplenie skvazhin v vysokopronitsaemykh gornykh porodakh v usloviyakh serovodorodnoy agressii / A.M. Voronik, S.V. Kamenskikh, Yu.L. Logachev, N.M. Ulyasheva // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2016. – № 4. – S. 34–38.
4. Razrabotka resheniy po povysheniyu kachestva krepleniya skvazhiny v usloviyakh pogloshcheniy i serovodorodnoy agressii / A.M. Voronik, Yu.L. Logachev, S.V. Kamenskikh, N.M. Ulyasheva // Inzhener-neftyanik. – 2016. – № 1. – S. 5–12.
5. Ashraf'yan M.O. Povyshenie kachestva razobshcheniya plastov v glubokikh skvazhinakh. – M.: Nedra, 1982. – 152 s.
6. Lyshko G.N., Lyshko O.G. Ekspress-metodika vybora moyushchey bufernoy zhidkosti // Ekspozitsiya Neft' Gaz. – 2010. – № 3/H(09). – S. 47–48.
7. Kamenskikh S.V., Ulyasheva N.M. Razrabotka i issledovanie burovogo rastvora dlya bezavariynogo vskrytiya serovodorodsoderzhashchikh vysokopronitsaemykh gornykh porod // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2019. – № 1. – S. 28–34. – DOI: 10.30713/0130-3872-2019-1-28-34
8. Agzamov F.A., Izmukhambetov B.S. Dolgovechnost' tamponazhnogo kamnya v korrozionno-aktivnykh sredakh. – SPb.: Nedra, 2005. – 317 s.
9. Kamenskikh S.V. Razrabotka retseptury biopolimernoy kol'matiruyushchey smesi dlya likvidatsii pogloshcheniy v pronitsaemykh gornykh porodakh // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2017. – № 7. – S. 15–21.
10. Voronik A.M., Kamenskikh S.V., Ulyasheva N.M. Razrabotka i issledovanie oblegchennoy korrozionnostoykoy tamponazhnoy smesi dlya krepleniya vysokopronitsaemykh gornykh porod, vmeshchayushchikh agressivnye flyuidy // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2020. – № 1(325). – S. 40–45. – DOI: 10.33285/0130-3872-2020-01(325)-40-45
11. Bykov I.Yu., Kamenskikh S.V., Ulyasheva N.M. Kompleks burovykh tekhnologicheskikh zhidkostey dlya kachestvennogo vskrytiya i krepleniya skvazhin v korrozionno-aktivnykh sredakh // Neftepromyslovoe delo. – 2022. – № 10(646). – S. 26–30. – DOI: 10.33285/0207-2351-2022-10(646)-26-30