Transient flows in a wellbore during killing of an empty well
Failure to adequately equipping the wellhead with appropriate well control equipment may result in a high pressure in the gas drilling when it reaches a high-yield gas layer. This would require the execution of a well killing operation to facilitate follow-up drilling and well completion. A...
Main Authors: | , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
VINCA Institute of Nuclear Sciences
2019-01-01
|
Series: | Thermal Science |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-98361904297J.pdf |
id |
doaj-0f132bfee79c4e87a9d4bd77215b685c |
---|---|
record_format |
Article |
spelling |
doaj-0f132bfee79c4e87a9d4bd77215b685c2021-01-02T08:12:47ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362019-01-012342297230610.2298/TSCI1904297J0354-98361904297JTransient flows in a wellbore during killing of an empty wellJiang Lin0Wei Na1Liu An-Qi2Meng Ying-Feng3Li Hai-Tao4Sun Wan-Tong5Zheng Li-Jun6Fu Qiang7Pang Wei-Xin8State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaGeological Explorations and Development Institute, Chuan Qing Drilling Engineering Company Limited, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaChina National Offshore Oil Corporation, Beijing, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaChina National Offshore Oil Corporation, Research Institute Limited Liability Company, Beijing, ChinaFailure to adequately equipping the wellhead with appropriate well control equipment may result in a high pressure in the gas drilling when it reaches a high-yield gas layer. This would require the execution of a well killing operation to facilitate follow-up drilling and well completion. An empty well of gas-phase brings implementation of a gas-liquid two-phase transient flow, filling with killing mud. The operation may also entail coupling of the transient seepage from the formation with the gas-liquid two-phase transient flow through the wellbore. In this study, a mathematical model and a numerical method for coupling the transient gas flow through the formation with the gas-liquid two-phase transient flow in the wellbore were developed. The numerical simulation results showed that successful killing of an empty gas-drilled well required proper co-ordination of several key parameters among which the wellhead backpressure is particularly crucial to the operation. The findings of this study promise to facilitate the pro-cess design and parameter optimization for the killing of empty gas-drilled wells.http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-98361904297J.pdfgas drillingwell controlgas-liquid two-phase transient flowformation seepagewell killing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jiang Lin Wei Na Liu An-Qi Meng Ying-Feng Li Hai-Tao Sun Wan-Tong Zheng Li-Jun Fu Qiang Pang Wei-Xin |
spellingShingle |
Jiang Lin Wei Na Liu An-Qi Meng Ying-Feng Li Hai-Tao Sun Wan-Tong Zheng Li-Jun Fu Qiang Pang Wei-Xin Transient flows in a wellbore during killing of an empty well Thermal Science gas drilling well control gas-liquid two-phase transient flow formation seepage well killing |
author_facet |
Jiang Lin Wei Na Liu An-Qi Meng Ying-Feng Li Hai-Tao Sun Wan-Tong Zheng Li-Jun Fu Qiang Pang Wei-Xin |
author_sort |
Jiang Lin |
title |
Transient flows in a wellbore during killing of an empty well |
title_short |
Transient flows in a wellbore during killing of an empty well |
title_full |
Transient flows in a wellbore during killing of an empty well |
title_fullStr |
Transient flows in a wellbore during killing of an empty well |
title_full_unstemmed |
Transient flows in a wellbore during killing of an empty well |
title_sort |
transient flows in a wellbore during killing of an empty well |
publisher |
VINCA Institute of Nuclear Sciences |
series |
Thermal Science |
issn |
0354-9836 |
publishDate |
2019-01-01 |
description |
Failure to adequately equipping the wellhead with appropriate well control
equipment may result in a high pressure in the gas drilling when it reaches
a high-yield gas layer. This would require the execution of a well killing
operation to facilitate follow-up drilling and well completion. An empty
well of gas-phase brings implementation of a gas-liquid two-phase transient
flow, filling with killing mud. The operation may also entail coupling of
the transient seepage from the formation with the gas-liquid two-phase
transient flow through the wellbore. In this study, a mathematical model and
a numerical method for coupling the transient gas flow through the formation
with the gas-liquid two-phase transient flow in the wellbore were developed.
The numerical simulation results showed that successful killing of an empty
gas-drilled well required proper co-ordination of several key parameters
among which the wellhead backpressure is particularly crucial to the
operation. The findings of this study promise to facilitate the pro-cess
design and parameter optimization for the killing of empty gas-drilled
wells. |
topic |
gas drilling well control gas-liquid two-phase transient flow formation seepage well killing |
url |
http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-98361904297J.pdf |
work_keys_str_mv |
AT jianglin transientflowsinawellboreduringkillingofanemptywell AT weina transientflowsinawellboreduringkillingofanemptywell AT liuanqi transientflowsinawellboreduringkillingofanemptywell AT mengyingfeng transientflowsinawellboreduringkillingofanemptywell AT lihaitao transientflowsinawellboreduringkillingofanemptywell AT sunwantong transientflowsinawellboreduringkillingofanemptywell AT zhenglijun transientflowsinawellboreduringkillingofanemptywell AT fuqiang transientflowsinawellboreduringkillingofanemptywell AT pangweixin transientflowsinawellboreduringkillingofanemptywell |
_version_ |
1724356820660649984 |