Use of Coiled Tubing Deployed Expandable Technology in Sidetrack Drilling Operations

2012 ◽  
Author(s):  
Alex Caccialupi ◽  
Scott Anthony Benzie ◽  
Greg Filippov
Keyword(s):  
Coiled Tubing ◽  
Drilling Operations

Turbodrill Bottomhole Assembly and Real-Time Data Improve Through-Tubing Coiled-Tubing Drilling Operations in Sour Gas Well

2015 ◽  
Author(s):  
A. Ebrahimi ◽  
P. J. Schermer ◽  
W. Jelinek ◽  
D. Pommier ◽  
S. Pfeil ◽  
...  
Keyword(s):  
Real Time ◽  
Time Data ◽  
Gas Well ◽  
Coiled Tubing ◽  
Real Time Data ◽  
Drilling Operations ◽  
Sour Gas

Utilization of Monitoring Inspection and Evaluation Technology in Safeguarding Pipe Integrity for Coiled Tubing Drilling Operations

2017 ◽  
Author(s):  
Zhanke Liu ◽  
Kevin Wiranata ◽  
Arafet Ridene ◽  
Henry Wortmann ◽  
Robert Bucher ◽  
...  
Keyword(s):  
Coiled Tubing ◽  
Drilling Operations

Advanced Geothermal Wellbore Hydraulics Model

2000 ◽  
Vol 122 (3) ◽  
pp. 142-146 ◽  
Author(s):  
Shifeng Tian ◽  
John T. Finger
Keyword(s):  
Heat Transfer ◽  
Multiphase Flow ◽  
Drilling Fluids ◽  
Data Input ◽  
Lost Circulation ◽  
Transfer Processes ◽  
Coiled Tubing ◽  
Flow Phase ◽  
Drilling Operations ◽  
Well Depth

A model has been developed to simulate multiphase flow in the wellbore and heat transfer processes between the well and formations. The model is capable of handling dynamic well depth during drilling, varying flow regimes in multiphase flow, phase change between liquid and gas, and kicks or lost circulation depending on the pressure difference between the wellbore annulus and formation. The model requires simple data input and is able to handle complicated drilling cases such as casing installation, changing drilling fluids, and drillpipe/coiled tubing connections during drilling operations. [S0195-0738(00)00303-4]

Experimental Evaluations for the Effects of Amplitude and Frequency of Vibration on the Friction of Coiled Tubing in Hydrocarbon Drilling Operations

2014 ◽  
Author(s):  
Jamil Abdo ◽  
Idris Al-Anqoudi ◽  
Hamed Al-Sharji
Keyword(s):  
Friction Force ◽  
Axial Load ◽  
Load Transfer ◽  
Optimal Designs ◽  
Engineering Systems ◽  
Positive Effects ◽  
Coiled Tubing ◽  
Weight On Bit ◽  
Drilling Operations ◽  
Helical Configuration

In a hydrocarbon drilling operations, when an axial load is applied beyond a critical value the coiled tubing (CT) will buckle forming sinusoidal wave and with increasing the axial load the CT ultimately goes into a helical configuration. The higher number of contacts between the CT and the wellbore the more friction is introduced. Increasing the CT friction, due to increasing the area of contact with the wellbore, eventually leads to lock-up length beyond which the drilling cannot proceed further. Vibration is understood to be a well-known technique to reduce friction between contacting bodies in many engineering systems. An in-house experimental setup is developed to imitate the wellbore being drilled with the presence of vibrating facility that has the capability to vibrate the CT axially. The setup is employed to examine the effects of amplitude and frequency of vibration on the friction force, between the CT and the wellbore, and on the axial load transfer or the weight on bit (WOB) of the CT. Response surface methodology is used to produce a prediction model to determine the effects of various amplitudes and frequencies the WOB of the CT. The investigations have shown that both amplitude and frequency of vibration have positive effects on reducing friction force and increasing WOB. The actual and predicted optimal designs are also presented in this work.

Mitigate Friction of Coiled Tubing by Optimization and Axial Vibrations to Facilitate Extended Reach Drilling Operations

2012 ◽  
Author(s):  
M. Danish Haneef ◽  
Jamil Abdo
Keyword(s):  
Cost Effective ◽  
Contact Forces ◽  
Engineering Systems ◽  
Coiled Tubing ◽  
Force Transfer ◽  
Simulation Based ◽  
Drilling Operations ◽  
Axial Vibrations ◽  
Extended Reach Drilling ◽  
Helical Configuration

A latest development in the drilling industry is the use of coiled tubing for drilling operations (CTD) that has emerged as a viable technique to ensure cost effective and trouble free drilling operations as compared to conventional jointed pipe drilling. The major challenge in CTD is the buckling that initiates as a consequence of it being a long slender tube and friction between the borehole and the tubing is known to be the main cause. This friction causes the CT to buckle sinusoidally and with increasing axial load ultimately to a helical configuration. Sufficient wall contact forces (WCF) are developed at the well bore and tubing interface thus eventually leading to a zero force transfer downhole. Thus a lockup situation is reached, beyond which the drilling cannot proceed further. Vibration is understood to be a well known technique to reduce friction between contacting forces in many engineering systems. This work presents a detailed analysis of factors that have significant influence on wall contact force, friction, lockup depth and hence buckling. A numerical simulation based technique is used to mitigate friction to reduce buckling, by applying axial vibrations. Various frequencies of axial vibrations were applied and their effect on friction and WCF is studied. A significant improvement in lockup depth was recorded while exciting the tube axially.

Sign in / Sign up

Export Citation Format

Share Document