Title: Design and simulation of a skid-mounted medium-pressure recovery process for scattered natural gas in marginal oil and gas fields

Authors: Hanyong Li; Qiyang Sun; Peng Han; Bo Yu

Addresses: Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil and Gas Development, Beijing Institute of Petrochemical Technology, China ' Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil and Gas Development, Beijing Institute of Petrochemical Technology, China ' School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, China ' School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, China

Abstract: At present, due to economic, technological and other reasons, approximately 140 billion cubic meters of natural gas are flared off each year worldwide, resulting in resource waste and environmental pollution, and the recovery potential is huge. In this paper, a skid-mounted medium-pressure recovery process for scattered natural gas is established based on the dispersed onshore remote gas well associated gas venting scene. Aspen HYSYS software is used to simulate the filling process of storage tank and tank truck, which determines the changing law of the process parameters such as pressure and flow rate, and clarifies the influencing factors of the filling time. Through the economic evaluation, it is concluded that the investment payback period is shorter when the process treatment gas volume in 3,500~6,000 Nm³/d, and economic benefits can be obtained. The results can provide a process method with simple flow and high economy for the efficient recovery and utilisation of scattered natural gas in marginal oil and gas fields. [Received: April 22, 2024; Accepted: October 4, 2024]

Keywords: scattered natural gas; skid-mounted; medium-pressure recovery; Aspen HYSYS; economic and environmental evaluation.

DOI: 10.1504/IJOGCT.2025.148745

International Journal of Oil, Gas and Coal Technology, 2025 Vol.38 No.3, pp.283 - 302

Received: 11 Apr 2024
Accepted: 04 Oct 2024
Published online: 22 Sep 2025 *

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