Field Tests on the Application of Oscillation Tool with a Fluidic Amplifier to Directional Well Drilling

2015 ◽  
Vol 741 ◽  
pp. 599-602
Author(s):  
Jiang Fu He ◽  
He Liu ◽  
Kun Yin ◽  
Xin Gan
Keyword(s):  
Flow Rate ◽  
Pressure Pulse ◽  
Field Tests ◽  
Test Results ◽  
Directional Drilling ◽  
Drilling Tool ◽  
Well Drilling ◽  
Operation Process ◽  
Drilling Tools ◽  
Drilling Technology

The directional well drilling technology is extensively utilized and developed throughout the world. However, series of drilling problems occurred in the operation process of directional drilling. In order to reduce the friction of drilling tools, an oscillation tool with a fluidic amplifier has been field tested, and the pressure pulse of oscillation tool has been obtained. Field test results have shown that the oscillation tool has an extensive flexibility to directional well drilling, and the oscillation tool could stably actuate the drilling tool to have reciprocating vibration, which contributes to the friction and drag reduction of drilling tools. Furthermore, it can be concluded that the pressure pulse value generated by pumped fluid varies with input flow rate, and the pressure of oscillation tool increases while the flow rate is increasing. In addition, the motion frequency of the oscillation tool is exponentially increasing with the raise of pumped flow rate.

scholarly journals Research on the measurement system of drilling while engineering parameters for intelligent drilling in coal mine

2020 ◽  
Vol 165 ◽  
pp. 03036
Author(s):  
Lian Jie
Keyword(s):  
Real Time ◽  
Drilling Process ◽  
Construction Process ◽  
Directional Drilling ◽  
Drilling Tool ◽  
Intelligent Decision Making ◽  
Intelligent Decision ◽  
Drilling Technology ◽  
Engineering Parameters ◽  
Parameter Measuring

In order to ensure safe and efficient mining and improve the efficiency of drilling construction, intelligent drilling technology has been studied in China. This technology is another development on the basis of automation. In addition to the automatic execution of the construction process, it also has the characteristics of intelligent perception, intelligent decision-making and intelligent correction. This technology requires engineering parameter measuring equipment to obtain the engineering parameters such as torque, WOB, inner and outer annulus pressure, rotation speed, vibration, temperature, etc. near the drill bit at the bottom of the hole in real time, so as to realize the real-time monitoring of the drilling process parameters at the bottom of the hole and the stress state of the drilling tool in the process of directional drilling, and increase the effective extraction distance of the drilling hole.

A Review of Downhole Wireless Technologies and Improvements

2021 ◽  
Author(s):  
Brett Bouldin ◽  
Ahmed AlShmakhy ◽  
Ahmed Khaled Bazuhair ◽  
Muzoon Hasan Alzaabi ◽  
Jarl André Fellinghaug
Keyword(s):  
Wireless Communication ◽  
Flow Rate ◽  
Large Scale ◽  
Pressure Pulse ◽  
Cost Effective ◽  
Directional Drilling ◽  
Wireless Technologies ◽  
Advantages And Disadvantages ◽  
Wireless Telemetry

Abstract Downhole wireless communication in the form of mud pulse telemetry enabled directional drilling over the past 60 years and has been hugely successful. Technologies like Measurement While Drilling (MWD), Logging While Drilling (LWD), and Geosteering would simply not exist without it. But in the Production and Producing end of the business, applications for downhole wireless communication have been less clear, especially where long distances and long-term monitoring are concerned. Several wireless technologies are in use today for long-term production applications. Electromagnetic (EM), acoustic, and pressure pulse telemetries are finding application as wireless production gauges, drill stem test tools, and drilling alternatives to pressure pulse. But the large-scale vision of, "Breaking the Wire!" in production wells has not yet occurred. Permanent Downhole Gauges (PDG) with an umbilical to surface are still the product of choice for long-term production monitoring. A history of wireless approaches in production applications will be given and the different methods used in the industry will be explained. A comparison and contrast of wireless telemetry methods will be explored, explained, and evaluated. Advantages and disadvantages will be listed for each approach. A ranking system will be employed to illustrate the evaluation results of the different wireless telemetry methods. New variants for wireless telemetry, power supplies, and measurement methods will be proposed. Preferred applications for each gauge type will be given. Downhole gauges can be improved by integrating pressure pulse, a downhole power generator, and downhole flow rate measurement into a single unit. The overall size can be ten times shorter than existing systems while still generating a larger wireless signal. Such a system would make wireless downhole gauges much more practical and should significantly increase their uptake in the industry. Real-time measurement of downhole pressure and downhole flow rate transforms the accuracy and effectiveness of Pressure Transient Analysis (PTA). Better reservoir understanding can be gained by using only drawdown tests, without shutting in the well. Smaller tools are generally more cost effective.

Mixed Uncertainty Analysis of Pole Placement and H∞ Controllers for Directional Drilling Attitude Tracking

2015 ◽  
Vol 137 (12) ◽  
Author(s):  
Martin T. Bayliss ◽  
James F. Whidborne
Keyword(s):  
Performance Analysis ◽  
Oil Industry ◽  
Transient Simulation ◽  
Pole Placement ◽  
Directional Drilling ◽  
Drilling Tool ◽  
Plant Model ◽  
Drilling Tools ◽  
Attitude Tracking ◽  
And Performance

This paper describes the design of attitude-hold controllers and their subsequent stability and performance analysis for directional drilling tools as typically used in the oil industry. Based on an input transformation developed in earlier work that partially linearizes and decouples the plant dynamics of the drilling tool, the resulting plant model is used as the basis for both pole placement and optimal H∞ controller designs. A mixed uncertainty stability and performance analysis is then performed on each of the controller designs. Results for a transient simulation of the proposed controller are also presented.

Real-Time Downhole Weight on Bit (DWOB) Automation in Directional Drilling

2015 ◽  
Author(s):  
Andrew Wu ◽  
Geir Hareland
Keyword(s):  
Real Time ◽  
Field Tests ◽  
Directional Drilling ◽  
Well Drilling ◽  
Loop Control ◽  
Closed Loop Control System ◽  
Loop Control System ◽  
Weight On Bit ◽  
The Difference ◽  
Predicted Values

This paper introduces the functionality of a new type of Autodriller software system, which can acquire downhole weight on bit (DWOB) based on surface rig measurement. Field tests are performed, including DWOB measured by downhole measuring tools and the hookload below the top drive using a TTS (Torque and Tension Sub). Three sets of drilling data from three horizontal wells in Western Canada were utilized to verify the models of this new Autodriller system. DWOB comparisons between the model and the measuring tools were carried out. The comparisons indicate a good agreement between the downhole measured DWOB and the new Autodriller predicted values. The difference between the new Autodriller prediction and downhole measured DWOB can be quantified using rooted mean square error (RMSE) or relative error (RE). This paper also analyzes the differences in some sections, and some measures are suggested to potentially reduce these differences. The new Autodriller is a closed loop control system which can automatically in real-time adjust surface weight on bit (SWOB) so that the DWOB is accurate, which will directly improve the performance of drill bits, and decrease the cost of drilling, especially in directional well drilling applications.

scholarly journals REQUIREMENTS TOWARDS THE TECHNOLOGY OF CONSTRUCTION OF PIPELINES CROSSINGS BY DIRECTIONAL DRILLING METHOD

2015 ◽  
pp. 57-67
Author(s):  
Yu. I. Spektor ◽  
Z. Z. Sharafutdiniov ◽  
S. L. Golofast
Keyword(s):  
Directional Drilling ◽  
Drilling Tool ◽  
Drilling Method ◽  
Drilling Technology ◽  
Drilling Muds

A problem of construction of pipeline crossings through different obstacles using directional drilling technology is considered. Based on the results of the study of pipeline crossings construction the basic requirements towards the drilling technology, the used drilling tool, drilling muds and the wastes disposal are analyzed.

The Finite Element Analysis of the Rollers in a Rotary Steerable Drilling Tool

2013 ◽  
Vol 390 ◽  
pp. 641-645
Author(s):  
Guang Wei Zhang ◽  
Li You ◽  
Zhao Li
Keyword(s):  
Low Cost ◽  
Major Change ◽  
Drill String ◽  
Design Parameters ◽  
Directional Drilling ◽  
Element Analysis ◽  
Rotary Drilling ◽  
Drilling Tool ◽  
Thrust Bearings ◽  
Drilling Technology

Rotary steerable system (RSS) is a system complete the oriented features in real-time while a drill string rotary drilling. It is a major change since the 1990s in directional drilling technology. RSSs drilling frictional and torsional resistance is small, has a high drilling speed, low cost, the well trajectory is smooth and easy to control, it is considered to be the development direction of modern steering drilling technology .When the system working ,drilling pressure and torque are passed by the thrust bearings in the controlled bend sub oriented tool; therefore it is necessary to analysis the rollers load distribution to verify the design parameters of variation cardan shaft, thrust bearings and roller are correct or not, This article analyzed thrust bearings rollers by ANSYS. Determine its maximum stress, etc. Providing more intuitive and scientific basis for its structural optimization [1].

Application Research on Low-Pressure Pulse and Cavitation Jet Compound Drilling Technology

2011 ◽  
Vol 137 ◽  
pp. 205-209 ◽  
Author(s):  
Wen Fei Li ◽  
Guang Lei Wang
Keyword(s):  
Pressure Pulse ◽  
Breaking Strength ◽  
Low Pressure ◽  
Rock Breaking ◽  
Strength Increase ◽  
Application Research ◽  
Hydraulic Power ◽  
Well Drilling ◽  
Deep Well ◽  
Drilling Technology

In the low-pressure pulse and cavitation jet compound drilling technology, pulse low-pressure and cavitation jet generator is installed on bit, water jet modulated by generator can generate pulse low-pressure, which will alternate rock mechanics, decrease rock breaking strength, increase rock-breaking efficiency. And cavitation jet generated can increase hydraulic power downhole. The results show that low-pressure pulse and cavitation jet generator has been run well from 5349m to 6162m for 129.36h-136.63h in TK1090 well, increasing drilling speed 40.6%～85.1%. The low-pressure pulse and cavitation jet compound drilling technology can increase drill speed and be deployment in deep well drilling.

scholarly journals Analysis of Puncture and Prediction of Crack Fatigue in Drilling Tools

2020 ◽  
Vol 198 ◽  
pp. 03003
Author(s):  
Guangqiao Li ◽  
Kejun Zhai ◽  
Zhongxi Zhu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crack Extension ◽  
Drill Pipe ◽  
The Finite Element Method ◽  
Drilling Tool ◽  
Reservoir Development ◽  
Drilling Tools ◽  
Drilling Technology ◽  
Extension Period

In recent years, the drilling technology of directional wells and large displacement wells has been widely used, which has greatly improved the reservoir development efficiency. However, the “stabbing” accidents in the drilling of the inclined section drilled frequently occur frequently. In view of the above problems, this paper uses the finite element method to take the well “003-H1”, which is more serious in the drilling tool, as the research object, and deeply analyzes the cause of the “stabbing” of the drilling tool and the prediction of the crack extension period. The results show that the “piercing” of the drill pipe is mainly caused by the fatigue failure of the drill pipe. The crack on the surface of the drill pipe increases with the slope of the construction. The crack changes rapidly from elastic expansion to plastic expansion, and the fatigue life is “breaking” down, move down to create a slanting point position, which can reduce the occurrence of drill pipe “stabbing” accident.

MODELING OF THE DYNAMIC PROCESS RELEASE OF STUCK DRILLING TOOLS BY HYDRO-PULSE METHOD

2019 ◽  
pp. 94-103
Author(s):  
K. H. Levchyk ◽  
M. V. Shcherbyna
Keyword(s):  
Mathematical Model ◽  
Dynamic Process ◽  
Drilling Fluid ◽  
Pulse Method ◽  
Geometrical Parameters ◽  
Technical Solution ◽  
Rock Layer ◽  
Drilling Tool ◽  
Drilling Tools ◽  
Drill Pipes

A technical solution is proposed for the elimination the grabbing of drilling tool, based on the use of energy due to the circulation of the drilling fluid. The expediency eliminating the grabbing drilling tool using the hydro-impulse method is substantiated. A method of drawing up a mathematical model for the dynamic process of a grabbing string of drill pipes in the case of perturbation of hydro-impulse oscillations in the area of the productive rock layer is developed. The law of longitudinal displacements arising in the trapped string is obtained, which allows choosing the optimal geometrical parameters of the passage channels and the frequency rotational of shutter for these channels. Recommendations for using this method for practical use have been systematized.

scholarly journals Rotary steerable systems: mathematical modeling and their case study

2021 ◽  
Vol 11 (6) ◽  
pp. 2743-2761
Author(s):  
Caetano P. S. Andrade ◽  
J. Luis Saavedra ◽  
Andrzej Tunkiel ◽  
Dan Sui
Keyword(s):  
Directional Drilling ◽  
Steering Control ◽  
Fundamental Physics ◽  
Drilling Tools ◽  
Drilling Operations ◽  
Beam Bending ◽  
Extended Reach Drilling ◽  
And Control ◽  
2D And 3D

AbstractDirectional drilling is a common and essential procedure of major extended reach drilling operations. With the development of directional drilling technologies, the percentage of recoverable oil production has increased. However, its challenges, like real-time bit steering, directional drilling tools selection and control, are main barriers leading to low drilling efficiency and high nonproductive time. The fact inspires this study. Our work aims to contribute to the better understanding of directional drilling, more specifically regarding rotary steerable system (RSS) technology. For instance, finding the solutions of the technological challenges involved in RSSs, such as bit steering control, bit position calculation and bit speed estimation, is the main considerations of our study. Classical definitions from fundamental physics including Newton’s third law, beam bending analysis, bit force analysis, rate of penetration (ROP) modeling are employed to estimate bit position and then conduct RSS control to steer the bit accordingly. The results are illustrated in case study with the consideration of the 2D and 3D wellbore scenarios.

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