Improvement of Gas Production Using A Multilateral Well in A Field

Abstract

Nestor Tsamo, Kasi Njeudjang, Rolande Tsapla Fotsa, Finalise Komofor Ngopuh, Serge Gervais Ngueuteu Mbouna and Philippe Njandjock Nouck

This paper aims to improve gas production using a multilateral well and to determine the optimal depth to avoid the presence of the salt dome encountered in a well of the field called X (for confidential reasons). Based on modelling, nodal, sensitivity, and economic analyses carried out with the computer modelling group (CMG) prosper, and excel softwares, this paper presents several improvement scenarios by varying the tubing diameter and wellhead pressure: (1) a reduction in the wellhead pressure from 200 to 50 psi while maintaining a tubing diameter of 3 inches; (2) improvement of the production rate from 44.5899 MMscf/day to 57.5247 MMscf/day; (3) from an economic perspective, a return on investment of 12 years and 8 months, with a net present value (NPV) of $824,636,751.60 per year.

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