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Case Study of 5 Lateral TAML-3 Well Construction to Target PK 1-3 Layers

Authors
Philipp Brednev (Gazpromneft STC) | Dmitry Zavyazkin (Gazpromneft STC) | Andrey Voronin (Messoyahaneftegaz) | Dmitry Eremeev (Messoyahaneftegaz) | Andrey Dergunov (Baker Hughes)
DOI
https://doi.org/10.2118/191516-18RPTC-MS
Document ID
SPE-191516-18RPTC-MS
Publisher
Society of Petroleum Engineers
Source
SPE Russian Petroleum Technology Conference, 15-17 October, Moscow, Russia
Publication Date
2018
Document Type
Conference Paper
Language
English
ISBN
978-1-61399-648-5
Copyright
2018. Society of Petroleum Engineers
Disciplines
7.2 Risk Management and Decision-Making, 1.6 Drilling Operations, 7 Management and Information, 7.3.3 Project Management, 7.2.1 Risk, Uncertainty and Risk Assessment, 1.6 Drilling Operations, 1.6.6 Directional Drilling
Keywords
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This article describes experience and results of TAML-3 penta-lateral (5-lateral) Fishbone type well construction at East-Messoyakha field. Trial work has been conducted to determine technical and economical feasibility of fishbone well construction.

East - Messoyakha field has very complex geological structure. According to field sedimentary conditions there are 3 major deposition cycles in primary PK 1-3 formation

Hydrodynamic modelling has shown multilateral well technology to be perspective in terms of increase of vertical association coefficient. Utilization of multilateral well technology is very perspective in geological conditions of East-Messoyakha field, it will also increase efficiency of reserves development compared to conventional horizontal wells.

During completion concept selection and planning stage, different options have considered. TAML-3 level have been selected for a multilateral junction. Lateral trajectories well paths were planned to cross sub-layers and turn in azimuthal direction.

Multilateral ERD well construction required multiple technical solutions to be implemented in order to successfully complete the project: running 7" casing in 800 horizontal section, utilization of OBM and its re-use, running lateral liners in two trips.

Successful project execution of penta-lateral allows to solve the following challenges:

extend reservoir coverage and increase of effective well radius in heterogeneous layers

simultaneous drainage in different layers

decrease the risk of production loss due to lateral hole collapse

 

Cased fishbone multilateral well proved its effectiveness after 6-months production. It is also a logical continuation of company’s technological development. The paper also discusses possible options for further advancement.

File Size  1 MBNumber of Pages   13

Supporting information

  • SUPPLEMENTARY/SPE-191516-18RPTC-MS-SUP.pdf

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