«Onshore and offshore oil and gas well construction»

Topical problems that can arise in the course of eliminating losses and a methodology of express evaluation of colmating compositions

UDC: 622.248.3
DOI: -

Authors:

¹ Ukhta State Technical University, Ukhta, Russia

Keywords: process fluids, absorption, colmatation, pores channels, filtration processes, granulometric composition of the material, colmatation compositions

Annotation:

The authors of the article consider the problems of oil and gas wells construction in conditions of process fluids absorption in permeable formations as well as the use of colmatation methods to eliminate filtration processes. It is known, absorption is observed during the construction of most wells, causing a wide range of problems. It always leads to an increase of the well cost and in many cases, to prolongation of its construction period of time, and, in some cases, to concomitant complications – loss of well walls stability, tool sticking, gas-oil-water collisions, as well as their combinations. The absorption itself may be a consequence of other complications as well as the results of their elimination. To assess the degree of colmatation materials impact on the intensity of filtration losses, an express method is proposed, which can be used to select the component composition of the composition. The results of laboratory studies and the corresponding conclusions are given.

Bibliography:

1. Yasov V.G., Myslyuk M.A. Oslozhneniya v burenii: sprav. posobie. – M.: Nedra, 1991. – 334 s.
2. Novye podkhody k preduprezhdeniyu pogloshcheniy burovykh rastvorov / B.A. Rastegaev, V.V. Minibaev, A.V. Ul'shin [i dr.] // Burenie i neft'. – 2018. – № 7. – S. 56–59.
3. Ulyasheva N.M., Voronik A.M., Mikheev M.A. Burovye promyvochnye i tamponazhnye rastvory: ucheb.-metod. posobie. – Ukhta: UGTU, 2019. – 79 s.
4. Ulyasheva N.M., Mynzul M.A., Mikheev M.A. K otsenke effektivnosti kol'matantov v intervalakh gornykh porod povyshennoy pronitsaemosti // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2013. – № 10. – S. 18–24.
5. Teorii podbora fraktsionnogo sostava kol'matanta / G.G. Ishbaev, M.R. Dil'miev, A.V. Khristenko, A.A. Mileyko // Burenie i neft'. – 2011. – № 6. – S. 16–18.
6. Kamenskikh S.V. Razrabotka retseptury biopolimernoy kol'matiruyushchey smesi dlya likvidatsii pogloshcheniy v pronitsaemykh gornykh porodakh // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2017. – № 7. – S. 15–21.
7. Lipatov A.V., Alyab'ev D.S., Zhivaeva V.V. Razrabotka vyazkouprugogo sostava s otverditelem dlya povysheniya kachestva kol'matatsii treshchin v skvazhine // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2017. – № 2. – S. 23–25.
8. Ulyasheva N.M., Mikheev M.A., Durkin V.V. Tekhnologiya burovykh rastvorov: ucheb.-metod. posobie. – Ukhta: UGTU, 2019. – 112 s.