Trajectory Estimation in Directional Drilling Using Bottom Hole Assembly Analysis

Date

2009-01-01

Author

Dogay, S.
Ozbayoglu, E.
Kök, Mustafa Verşan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

154
views

0
downloads

The aim of this study is to put together the basic concepts of mechanics on drill string which are related to directional drilling, thus finding a less complicated and more economical way for drilling directional wells. Slick bottom hole assembly, which has no stabilizers attached, and single stabilizer bottom hole assembly are analyzed through previously derived formulas gathered from the literature that are rearranged for this study. An actual directional well is re-drilled theoretically with a slick assembly and a computer program is assembled for calculating the side force and direction of the well for single stabilizer assembly. Influence of controllable variables on drilling tendency is investigated and reported. The study will be useful for well trajectory and drill string design in accordance with the drilling phase. Also, by using available data from the offset wells, the drilling engineer can back-calculate the formation anisotropy index that is often used for optimizing well trajectories and predicting drilling tendency on new wells in similar drilling conditions which is also shown throughout the study.

Subject Keywords

Fuel Technology, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology, Nuclear Energy and Engineering

URI

https://hdl.handle.net/11511/40150

Journal

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

DOI

https://doi.org/10.1080/15567030802464008

Collections

Department of Petroleum and Natural Gas Engineering, Article

Suggestions

OpenMETU
Core

Computational Fluid Dynamics Modeling of Pipe Eccentricity Effect on Flow Characteristics of Newtonian and Non-Newtonian Fluids SORGUN, MEHMET (Informa UK Limited, 2011-01-01) The prediction of accurate drilling fluids behavior inside an annulus is especially important in drilling engineering during hydraulic program design. The flow characteristics of Newtonian and non-Newtonian fluids drastically change in the annuli when the inner pipe is eccentric. In this study, the fluid flow inside concentric, partially eccentric, and fully eccentric annuli are modeled using computational fluid dynamics. Computational fluid dynamics simulations are performed to investigate the effect of pi...
Trajectory estimation in directional drilling using bottom hole assembly(bha) analysis Doğay, Serkan; Kök, Mustafa Verşan; Department of Petroleum and Natural Gas Engineering (2007) The aim of this study is to combine the basic concepts of mechanics on drill string which are related to directional drilling, thus finding a less complicated and more economical way for drilling directional wells. Slick BHA, which has no stabilizers attached and single stabilizer BHA are analyzed through previously derived formulas gathered from the literature that are rearranged for this study. An actual directional well is redrilled theoretically with a slick BHA and a computer program is assembled for c...
Predicting Frictional Pressure Loss During Horizontal Drilling for Non-Newtonian Fluids SORGUN, MEHMET; Ozbayoglu, M. E. (Informa UK Limited, 2011-01-01) Accurate estimation of the frictional pressure losses for non-Newtonian drilling fluids inside annulus is quite important to determine pump rates and select mud pump systems during drilling operations. The purpose of this study is to estimate frictional pressure loss and velocity profile of non-Newtonian drilling fluids in both concentric and eccentric annuli using an Eulerian-Eulerian computational fluid dynamics (CFD) model. An extensive experimental program was performed in METU-PETE Flow Loop using two ...
Reserve estimation using geostatistics Kök, Mustafa Verşan (Informa UK Limited, 2008-01-01) Application of geostatistics are being increasingly considered by reservoir analysts and engineers in generating more accurate reservoir models together with usable measures of spatial uncertainty. Geostatistics provides a probabilistic framework and a toolbox for data analysis with early integration of information. In this research, hydrocarbon volume of afield is estimated considering different parameters as gross rock volume, net to gross rock thickness, porosity, permeability, and saturation. Therefore,...
An experimental investigation on the chemical stability of selected formation and determination of the proper type of water-base drilling fluids. Part 2. Test results Erkekol, Selcuk; Gucuyener, I. Hakki; Kök, Mustafa Verşan (Informa UK Limited, 2006-07-01) The objective of this study was to select the proper drilling fluid type and composition for drilling stable holes through the problems of the selected formations. This study was performed on shale samples taken from 10 wells in which hole instability was encountered to various extents during drilling the Germav formation. Both ionic and polymer inhibitions were utilized in formulating the proper drilling for the Germav formation. Ionic inhibition was obtained using KCl and NaCl. Polyanionic polymer (Pac-L)...

Citation Formats

S. Dogay, E. Ozbayoglu, and M. V. Kök, “Trajectory Estimation in Directional Drilling Using Bottom Hole Assembly Analysis,” ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, pp. 553–559, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40150.