Damage analysis of choke bean used in an oil–gas well

Summary When a blowout oil/gas well catches fire, usually a flow tube is used to detach the fire from the wellhead and provide appropriate conditions for operating team members to approach the well and install the blowout-preventer (BOP) cap. Using the flow tube above the wellhead creates powerful suction around the tube that may jeopardize the safety of crew members. To reduce the power of suction around the well, a new perforated flow tube instead of simple flow tube was introduced. To understand the effect of this new type of flow tube, modeling and simulation of the flow field around the blowout well were performed for both simple and perforated types of flow tube with Fluent 6.3.26 (2003) and Gambit 2.3.16 (2003) softwares. Different parameters around the well mouth were compared in both designs. The results showed that using the perforated flow tube decreases the vacuum around the well by 33% compared with the simple flow tubes. Thus, application of the perforated flow tube can be recommended in well-control operations for safety measures.

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Determination of IMC-80BH Corrosion Inhibitor Concentration and Practical Application in Gas Field

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.284-286.1049 ◽

2011 ◽

Vol 284-286 ◽

pp. 1049-1052 ◽

Cited By ~ 2

Author(s):

Zheng Fan ◽

Wen Hong Li ◽

Dong Li ◽

Cun Ju Liu ◽

Yu Luo ◽

...

Keyword(s):

Corrosion Inhibitor ◽

Inhibitor Concentration ◽

Practical Application ◽

Buffer Solution ◽

Gas Field ◽

Gas Well ◽

Standard Curve ◽

Oil Gas ◽

Better Than

The ability of IMC-80BH corrosion inhibitor is proven to be excellent in earlier indoor static and flowing evaluation and it is worthwhile to determine the inhibitor concentration to maintain the optimum concentration for the sake of effective gas well protection. A improved concentration determination method is aboratively investigated. The maximum absorption wavelengths, buffer solution, reaction time and additive dosage of chromogenic reagent XD are detected successively and the standard curve of liquid phase behaves better than oil gas. The sample verification demonstrates that such determination measurement is reliable and precise. The four representative gas wells including G8-7, S59, W26-5 and G49-6 in service are also determined. The determination result offered substantial basis to analyze and select appropriate inhibitor injection program and dosage.

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Surface damage mitigation of Ti6Al4V alloy via thermal oxidation for oil and gas exploitation application: characterization of the microstructure and evaluation of the surface performance

RSC Advances ◽

10.1039/c6ra28421c ◽

2017 ◽

Vol 7 (22) ◽

pp. 13517-13535 ◽

Cited By ~ 26

Author(s):

Naiming Lin ◽

Qiang Liu ◽

Jiaojuan Zou ◽

Dali Li ◽

Shuo Yuan ◽

...

Keyword(s):

Oil And Gas ◽

Adhesive Wear ◽

Surface Hardness ◽

Surface Damage ◽

Ti6al4v Alloy ◽

Promising Candidate ◽

Gas Well ◽

Surface Performance ◽

Oil Gas

Ti6Al4V alloy is a promising candidate for petroleum tube. However, low surface hardness, high/unstable friction coefficient, severe adhesive wear and susceptibility to galling are harmful for the direct application of Ti6Al4V alloy in oil/gas well.

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Nonlinear flow-induced vibration response characteristics of a tubing string in HPHT oil&gas well

Applied Ocean Research ◽

10.1016/j.apor.2020.102468 ◽

2020 ◽

pp. 102468

Author(s):

Xiaoqiang Guo ◽

Jun Liu ◽

Guorong Wang ◽

Liming Dai ◽

Dake Fang ◽

...

Keyword(s):

Vibration Response ◽

Nonlinear Flow ◽

Flow Induced Vibration ◽

Gas Well ◽

Response Characteristics ◽

Tubing String ◽

Oil Gas

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Study on Dynamic Numerical Simulation of String Damage Rules in Oil-gas Well Perforating Job

Procedia Engineering ◽

10.1016/j.proeng.2014.10.513 ◽

2014 ◽

Vol 84 ◽

pp. 898-905 ◽

Cited By ~ 6

Author(s):

KANG Kai ◽

MA Feng ◽

ZHOU Haifeng ◽

WANG Haiyan ◽

WANG Shushan

Keyword(s):

Numerical Simulation ◽

Gas Well ◽

Dynamic Numerical Simulation ◽

Oil Gas

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Flare Gas Utilization at Combined Oil-Gas Well Sites

ASME 2010 4th International Conference on Energy Sustainability, Volume 1 ◽

10.1115/es2010-90041 ◽

2010 ◽

Author(s):

Casey Quinn ◽

Daniel Zimmerle ◽

Daniel B. Olsen

Keyword(s):

Energy Resource ◽

Gas Production ◽

Gas Well ◽

Air Contamination ◽

Gas Utilization ◽

Oil Storage ◽

Energy Needs ◽

Temporal Misalignment ◽

Oil Gas ◽

And Storage

Many natural gas well sites produce significant quantities of oil as a byproduct of gas production. Producers use standard gas separation techniques to recover gas dissolved in the oil, but additional light hydrocarbons are released during final depressurization and storage of the oil at atmospheric pressure. Gas produced in oil storage is often contaminated with air, cannot be introduced into midstream pipelines, and is flared at the well site. The flare gas represents a significant energy resource that could be utilized to improve overall site efficiency. This work documents a comprehensive energy analysis performed on a non-electrified site in Colorado. Data collection and simulations demonstrated that energy available in flare gas is sufficient to support the major energy loads at the well site. However, due to low flare gas pressures, high and variable air contamination, and temporal misalignment between the gas availability and energy needs, on-site utilization requires modified engine technology and application of energy buffering. Simulation results are presented, along with conceptual designs for well site modifications.

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Modeling and Simulation of Flow Field Around a Blowout Well

SPE Journal ◽

10.2118/149777-pa ◽

2012 ◽

Vol 17 (01) ◽

pp. 212-218 ◽

Cited By ~ 2

Author(s):

Ebrahim Hajidavalloo ◽

Parham Omidian

Keyword(s):

Modeling And Simulation ◽

Flow Rate ◽

Flow Behavior ◽

Tube Diameter ◽

Temperature Fields ◽

Flow Tube ◽

Gas Well ◽

Velocity Pressure ◽

Suction Flow ◽

Oil Gas

Summary Modeling and simulation of a blowing-out oil/gas well is very important in the drilling industry because they can accurately predict the velocity, pressure, and temperature fields around the well. This would help the personnel during the control operation to make proper decisions with minimum risk. In this paper, hydrodynamics and thermal behavior of a gaseous-well blowout were investigated. The flow was modeled as a free turbulent jet discharging in the atmosphere. A realizable k-ε model was used to model the turbulence, and a non-premixed model was used to model the combustion. The effect of placing a flow tube on the wellhead was studied. The results showed that combustion has an important effect on the flow behavior around the well by doubling the suction flow rate. Using the flow tube has a significant effect by concentrating the vacuum at the bottom of the wellhead, and increasing the flow-tube diameter increases the suction flow rate. It was also found that the drag force on the flow tube will be increased when the flow is reacting or when the flow-tube diameter is increased.

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