Tubing that is too large, however, may have an economic impact beyond the cost of the tubing string itself because the tubing size will influence the overall casing design of the well. Eccentricity has important effects on burst strength for casing. Experimental and numerical study on casing wear in highly deviated drilling for oil and gas show all authors. Drilling software download free trial downloads try before.
The casing wear model applied in cwpro casing wear prediction software developed by pvi assumes that the metal volume worn away. Validation of the casing as a barrier after operations ensure well lifecycle assessment. Casingwear well integrity software is integrated within the comprehensive engineers desktop edt suite, sharing data among all of landmarks drilling and completions applications to help reduce costs and optimize production across the entire well construction lifecycle. The casing must therefore be designed so that wear will not reduce the strength of the casing below that which will enable the well to.
Improving casing wear prediction and mitigation using a statistically based model. Tadpro, the most comprehensive torque and drag software in the oil and gas field, removes many of the risks of a drilling program, completion designs or specific tool operation. Casing wear well integrity software landmark solutions. For the love of physics walter lewin may 16, 2011 duration. Dea81 engineering design of cuttings disposal by reinjection into a hydraulic fracture. Casing design for the life of the well and all of its loading conditions. It calculates accurate downhole temperature and pressure profiles, which can be used for pipebody movement and casing and tubing load analysis.
Developed automation of wellcat software for sensitivity analysis. Snapshot of side force along a drill pipe figure 2. Case software provides precise casing id and thickness measurements that allows easy casing integrity. In order to analyze the influence of the contact force, rotating speed, steel grade and muds on casing wear, determine the optimized level collocation scheme which makes casing wear minimum, optimize drilling. The goal of this project was to more accurately quantify casing wear risk by improving casing wear analysis accuracy. The burst, collapse and axial strengths of casing are directly related to wall thickness, and hence are reduced by wear. Our revolutionary multilayer composite centralizer mcc technology combines high wear resistance with extremely low friction factors. Composite casing wear analysis is conducted to explore wear in the same groove and across a series of different grooves. Software development as an alternative to wellcat and stresscheck. Drilling software download free trials and try before you buy. Tool joint and pipe body contact forces and cumulative effects of multiple operations can be simulated.
Influence of wear on casing strength corrosion, wear. Aimed at studying the casing wear in the highly deviated well drilling, the. It can be used by drilling engineers to model all types of bhas, e. This paper discusses a complete methodology to determine riser wear, through application of casing wear theory, and thus confirm the wear allowance for the given drilling operating windows. The method for predicting casing wear in extendedreach drilling is verified through actual case study. The second part will be a field analysis to identify parameters affecting excessive casing wear in troll field.
It provides comprehensive triaxial and workingstress design for burst, collapse, and axial installation, and servicelife loads to maximize the use of the most costeffective casing. The casing wear model applied in cwpro casing wear prediction software developed. It is concluded that prediction of casing wear is possible with laboratory simulations, and that casing wear can be controlled by sufficiently smooth hardfacings, weighted mud. See just how easy it is to get started with drillscans software.
Cwpro can better understand the casing wear process and predict the location and magnitude of casing wear along a cased hole. Pdf analysis on collapse strength of casing wear researchgate. To do this, data from a large number of wells was analyzed to generate probabilities for dogleg severity in common well types and also. During each operation, the software would define the exposed area between a casing and a drill string to calculate the exact wear. These points within a directional survey can be a representation of a planned wel l. Finite element method fem analysis on worn casing collapse strength was done with nastran software from msc software corp. Casing wear is a continuous concern during the process of drilling and workover. Method estimates collapse strength of worn casing oil. As an introduction to the first part some information on the troll field and the drilling strategy shall be given before basic wear mechanisms shall be presented. Wellcat exercises design with connection envelope, casing wear analysis. The data can then be used for casing wear analysis, in the pursuit of higher well integrity. Casingwear well integrity software landmark solutions. Connection assessment levels cal, testing and qualification, use of qualified envelopes in casing and tubing design connection triaxial design casing wear proposed workflow, wear prediction workflow, wear factors, key factors impacting casing wear. Superior fluid bypass technology addresses many centralization and casing run challenges associated with todays.
Ansys software used to determine natural frequency response for gearbox casing. Preparation of guides on how to apply bp casing and tubing design policies. Sysdrill casing wear for determining the wear profile of. Clearly, tubing that is too small restricts production and subsequent economic performance of the well. Design optimization and analysis of industrial gearbox casing to reduce wear of gear and bearings due to. Casing integrity relies highly on the preliminary casing design, which requires to consider both well path and casing sustainability to withstand all the operations. Models to describe and predict casing wear shall be outlined. Casing wear during drillingsimulation, prediction, and. Halliburtons landmark introduces latest well construction software. Application of casing wear theory to top tensioned risers. Casingwear software, an innovative new landmark application, provides a. Numerical and theoretical analysis of burst pressures for.
As president of enertech, he built a worldwide company well known for its software and consulting services to predict well temperatures and stresses. Improving casing wear prediction and mitigation using a. During drilling operations, each drillstring applies sideforces on the inner wall of the previous casing strings, which generates wear, and reduction of casing mechanical limits. Caseware has been my home and family for 25 years, challenging me to stay ahead of the complexity of modern software development, processes and the cultural shifts that happen as a company grows. Experimental and numerical study on casing wear in highly. Compared with the performance of conventional drilling systems, schlumberger s casing and linerwhiledrilling technology has recorded equal or better onbottom rop and has reduced the time spent on drilling and casing operations by more than 30%. This module is designed for the prediction of wear at planning stage. The decrease of strength leads to casing damage, affects the followup well test and completion. The inner surface wear on the casing can be monitored with. Hao yu, zhanghua lian, tiejun lin, yonghui liu, and xiaofeng xu. In 1996, he sold enertech to halliburton where enertechs software products are now marketed by landmark and continue to lead the industry for analysis and design of critical wells.
By theoretical analysis, numerical simulation and actual test, the collapsing failure mechanism of casing wear as well as the influencing factors. Internal wear of casing due to drilling and workovers can be simulated with oliasofts wear simulator. Improper placement of casing may end up in catastrophic incidents such as. Accurate wear prediction is crucial for well integrity to reduce field development costs associated with casing, especially when drilling and completing complex sidetracks, multilaterals or long horizontal wells. By theoretical analysis, numerical simulation and actual test, the collapsing failure mechanism of casing wear as well as the influencing factors and laws of collapse strength are investigated, and.
Abstract casing wear factors form an integral part of casing wear estimation. Wear allowance and windows for conducting drilling operations can be defined prior to wear analysis. Wear mechanism the casing wear model applied in cwpro casing wear prediction software developed by pvi assumes that the metal volume worn away in a wear groove section is proportional to the. Tadpro torque and drag software in drilling and casing. Drillpipecasing protectors do not always appear effective in avoiding casing wear. Cwpro is intelligent enough to handle complicated casing structures and abundant operations inside the casing. Casing wear prediction with considering initial internal. Wellcat software provides precise solutions for both wellbore analysis and integrated casing and tubing design. Cwpro casing wear prediction software in the drilling industry.
According to the test data and the linear wear model based on the energy dissipation proposed by white and dawson, the tool jointcasing wear coefficient was obtained. Dea80 the use of quantitative risk analysis qra in casingtubing design presented europe deae64. Sysdrill casing wear for determining the wear profile of casing strings due to rotary drilling operations. Wellcat software is an essential tool for companies operating. Stresscheck casing design software enables quick, systematic, and accurate valuation of casing wear limits, and can automatically create the minimum cost design. Cwear is a dea42 casing wear model that accurately predicts casing wear 3 days ago. Author links open overlay panel zhanfeng chen a b weiping zhu a qinfeng di a shiqiang li a. The casing wear groove depth of a planned well is predicted with inversion of the casing wear factor from the drilled well and necessarily revised to improve the prediction accuracy for differences between the drilled well and the planned well. Wear radius has small effects on burst strength for casing. How can i simulate the wear analysis using ansys software. Drilling engineer, tubular design resume in houston, tx. Numerical and theoretical analysis of burst pressures for casings with eccentric wear. The casing wear model applied in cwpro casing wear prediction software developed by pvi as sumes that the metal volume worn away in a wear groove section is proportional to the frictional energy transmitted to the casing by a rotating tool joint as shown in figure 2. Cwear casing wear software download with our software, casing wear can be download and installation of our with the composition of the download.
Analysis on the remaining collapse strength after casing wear. If you are a human and are seeing this field, please leave it blank. Casingwear helps reduce uncertainties caused by inconsistent application of the casing wear model. Experimental and numerical study on casing wear in highly deviated. Wear mechanism the casing wear model applied in cwpro casing wear prediction software developed by pvi. Solidcast casting simulation software is the worlds most popular pcbased solidification modeling system and cast design software used in the casting industry. Casingwear well integrity software is a new solution to help reduce uncertainty. Prediction of casing wear in extendedreach drilling. Solidcast casting simulaiton casting simulation software. Aimed at studying the casing wear in the highly deviated well drilling, the experimental study on the casing wear was carried out in the first place.
When td is reached, the borehole is ready for cementing. When the ultrasonic data is acquired in the image mode or with the multi. In the deep and ultra deep well casing wear is serious. Casing condition after one operation would be the initial condition for the next operation. White paper casing wear drilling software for oil and. Maxwell oil tools is a manufacturer of composite centralizers and other tools used in drilling and other tubular applications. Users can conduct fast and accurate analysis for better decisionmaking. How to carry out the simulation of dry sliding wear on pin disc using ansys software. An interactive wellbore representation makes casing wear data. All casing wear software, and torque and drag software as well, use a directional survey to determine the side force or contact force between the drill string and wellbore. In this study, casing wear efficiency theory and a novel geometric description are used to establish a wear prediction model for the initial internal casing eccentricity in extended reach drilling erd. Evaluate the amount of casing wear generated by the contract forces during each operation of.
Experimental and numerical study on casing wear in highly deviated drilling for oil and gas. Us20160326844a1 estimation and monitoring of casing wear. Hdd plan is a userfriendly borehole design interface for the unique requirements of the hdd horizontal directional drilling, industry to plan drilling boreholes starting and ending at any inclination and with multiple tangent and curve bend sections applications for this program. To do this, data from a large number of wells was analyzed to generate probabilities for dogleg severity in common well types and also correlate those to actual backmodeled casing wear factors. Casing wear analysis and wear calibration using cwear software. The well profile and operations coupled with casing wear maps and casing stress analysis may serve, for example, as a comprehensive casing wear monitoring tool, both during the panning and realtime operations. Sysdrill casing design for casing program design and complete load analysis of casing or tubing string. The casing string design program for windows, casing2, has been developed jointly by lone star steel company and maurer engineering inc. Proper modeling of loading conditions is instrumental in order to select the appropriate grade and tubular dimensions to design well architecture than ensures well integrity during the well lifecycle. Casing wear accumulates in the sequence of operations. Check out the this white paper to see how the casing wear model is applied in the software, as well as casing wear preventive measures, and more. Design optimization and analysis of industrial gearbox. Downloads hdd plan for horizontal drilling read more. As pioneers in drilling software, we have developed an extensive.
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