Research on Minimum Length Calculation of Skid-Mounted Small-Diameter Pipe Weight Bar

DOI

10.2991/pntim-19.2019.2How to use a DOI?

Keywords

Skid-Mounted Small-Diameter Pipe; Drainage Gas Recovery & Weight Bar

Abstract

The drainage gas recovery operation with small-diameter continuous pipes is applicable to the one in natural gas well with low pressure, low production and low water content. Its advantages exhibit as the following: 1) high efficiency on continuous running of pipe string under pressure; 2) production while operation; 3) correct monitoring the position of ejection head; and 4) précised control of ejection quantity. Due to the small diameter, thin wall thickness and relative low rigidity of pipe string, it is easy to cause bending and deformation during down-hole process and affect the capability of small diameter pipe operation. Aiming at shutting and opening of the well, this thesis analyzes the force of the small-diameter pipe during down process, establishes the corresponding digital model and proposes the calculating method required to run the small-diameter pipes under different status. Taking G25-5 well as example, the appropriate minimum length of weight bar under different working status is given to verify the validness of the method to determine the minimum length of weight bar.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xue Jijun
PY  - 2019/11
DA  - 2019/11
TI  - Research on Minimum Length Calculation of Skid-Mounted Small-Diameter Pipe Weight Bar
BT  - Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)
PB  - Atlantis Press
SP  - 6
EP  - 9
SN  - 2589-4943
UR  - https://doi.org/10.2991/pntim-19.2019.2
DO  - 10.2991/pntim-19.2019.2
ID  - Jijun2019/11
ER  -