Open Access

ARTICLE

Numerical Analysis of Dynamical Effects Associated with a Plugging String in a Horizontal Well

Guangsheng Liu^1,2, Qingming Gan^1,2, Wen Wu³, Haitao Yang^1,2, Yiming Lv^1,2, Wenhao Cui^1,2, Wei Lin^4,*

1 Oil and Gas Technology Research Institute Changqing Oilfield Company, PetroChina, Xi’an, 710018, China
2 National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields PetroChina, Xi’an, 710018, China
3 Shunan Gas Mine, PetroChina Southwest Oil and Gas Field Company, Luzhou, 646000, China
4 College of Engineering, Southwest Petroleum University, Nanchong, 637001, China

* Corresponding Author: Wei Lin. Email:

Fluid Dynamics & Materials Processing 2023, 19(5), 1203-1214. https://doi.org/10.32604/fdmp.2023.022022

Received 17 February 2022; Accepted 25 July 2022; Issue published 30 November 2022

Abstract

The finite element method has been applied to simulate the dynamics of a water plugging string in a complex horizontal well of a low-permeability oilfield. The force associated with the pipe string and the packer has been determined under the sucking action of the oil well pump. Such analysis has been conducted for a real drilling well, taking into account the process of lifting, lowering, unblocking and water plugging. Comparison between field measured data and simulation data indicates that the model is reliable and accurate. The packer creep effect under different pressure differences has also been investigated in the framework of the same model.

---

Keywords

---