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Title: Offshore underbalanced drilling system could revive field developments. Part 2: Making this valuable reservoir drilling/completion technique work on a conventional offshore drilling platform

Abstract

Part 1, presented in the July issue, discussed the emerging trend to move underbalanced drilling (UBD) operations into the offshore arena, following its successful application in many onshore areas. This concluding article delves into the details of applying UBD offshore. Starting with advantages the technique offers in many maturing or complex/marginal prospects, the UBD system for offshore platforms use is described. This involves conversion of the conventional rotary system, use of rotating diverters, design of the surface fluid separation system and the necessary gas (nitrogen or natural gas) injection system to lighten the fluid column. Commonly faced operational challenges for offshore UBD are listed along with recommended solutions.

Authors:
; ;
Publication Date:
OSTI Identifier:
538264
Resource Type:
Journal Article
Journal Name:
World Oil
Additional Journal Information:
Journal Volume: 218; Journal Issue: 10; Other Information: PBD: Oct 1997
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 02 PETROLEUM; NATURAL GAS WELLS; OIL WELLS; WELL DRILLING; PRESSURE CONTROL; OFFSHORE SITES; DRILLING EQUIPMENT; MODIFICATIONS; DRILLING FLUIDS; GAS INJECTION; SEPARATION EQUIPMENT

Citation Formats

Nessa, D O, Tangedahl, M J, and Saponja, J. Offshore underbalanced drilling system could revive field developments. Part 2: Making this valuable reservoir drilling/completion technique work on a conventional offshore drilling platform. United States: N. p., 1997. Web.
Nessa, D O, Tangedahl, M J, & Saponja, J. Offshore underbalanced drilling system could revive field developments. Part 2: Making this valuable reservoir drilling/completion technique work on a conventional offshore drilling platform. United States.
Nessa, D O, Tangedahl, M J, and Saponja, J. 1997. "Offshore underbalanced drilling system could revive field developments. Part 2: Making this valuable reservoir drilling/completion technique work on a conventional offshore drilling platform". United States.
@article{osti_538264,
title = {Offshore underbalanced drilling system could revive field developments. Part 2: Making this valuable reservoir drilling/completion technique work on a conventional offshore drilling platform},
author = {Nessa, D O and Tangedahl, M J and Saponja, J},
abstractNote = {Part 1, presented in the July issue, discussed the emerging trend to move underbalanced drilling (UBD) operations into the offshore arena, following its successful application in many onshore areas. This concluding article delves into the details of applying UBD offshore. Starting with advantages the technique offers in many maturing or complex/marginal prospects, the UBD system for offshore platforms use is described. This involves conversion of the conventional rotary system, use of rotating diverters, design of the surface fluid separation system and the necessary gas (nitrogen or natural gas) injection system to lighten the fluid column. Commonly faced operational challenges for offshore UBD are listed along with recommended solutions.},
doi = {},
url = {https://www.osti.gov/biblio/538264}, journal = {World Oil},
number = 10,
volume = 218,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 1997},
month = {Wed Oct 01 00:00:00 EDT 1997}
}