This intense course focuses on the critical need for a proper understanding of all aspects of horizontal and multilateral design and completion. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Save time on your completion by enabling fracturing in both the lateral bore and main bore in a single trip. The main driver for multilateral wells is their improved exposure of the productive formation per well. Halliburton is the worlds leading provider of intelligent completion technology to the upstream oil industry. In fact, the multilateral system is based on several wells, all derived from one initial well. To learn more about how we can minimize costs and maximize sweetspot exposure, please complete the contact form below. The numerical simulation results show that the multilateral wells usually help improve. This value, when compared to the flow capacity obtained from a pi measurement, will show the effectiveness of the well treatment completion, fracture treatment, acidization, etc. Well completion options and its impact on well performance for horizontal and multilateral wells are summarized. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. It is currently being applied or considered for applications in most operating areas of the world. To move toward addressing this problem, the authors present a study of data from 22 years of actual multilateralwell applications, examining the true reliability of the technology. Hill is an expert in the areas of production engineering, well completions, well stimulation, production logging, and complex well performance horizontal and multilateral wells and has presented lectures and courses and consulted on these topics throughout.
A single multilateral well can have significantly more payzone formation exposure than a single well. The number of multilateral well completions has increased substantially in the last several years due to advances in directional drilling and completion systems. New aspects of multilateral well construction semantic scholar. Optimization of well design and location in a real field. Purchase of an open document does not constitute license for republication in any form, nor does it allow web posting without prior written permission. Planning multilateral well subsurface activities requires the same stringent approach to drilling and completion as a single horizontal well, with some caveats. Pdf 26 pages the compatibility of the drilling and gravel pack fluid helps maintain the. Unfortunately, drilling engineers must often mechanically stabilize multilateral wells with a liner or casing, which can cost millions of dollars. Pdf assessment and evaluation of degree of multilateral wells. This allows for alternative wellconstruction strategies for vertical, inclined, horizontal, and extendedreach wells. Improved methods and systems for creating a multilateral well and improved multilateral well structures.
In 1997, technology advancement for multilaterals taml, an industry consortium of operators and service companies, was formed to categorize multilateral wells by their complexity and functionality. This eliminates the time and cost involved with pulling the completion in an existing well to start drilling and then rerunning it after the well has reached total depth. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Gwdc multilateral drilling and completion technology. Boyun guo, in well productivity handbook second edition, 2019. Pcsb has completed horizontal wells, multilateral wells, wells with gravel packing completion, slim well and one twin well. Halliburton completion tools offers a wide range of products and services designed to maximize well production including swellable technology, subsurface safety systems, highpressure packer systems, intervention solutions, flow controls, and expandable liner technology as well as intelligent completions, multilateral systems, and wellbore. Schematic of components of a multilateral smart well dumville, 2008 figure 12. It is important to understand, that taml codes refer to junction, but not to whole well design. This principally involves preparing the bottom of the hole to the required specifications, running in the production tubing and its associated down hole tools as well as perforating and stimulating as required. Multilateral wells are the direct result of the advances of in directional drilling. Key issues in multilateral technology schlumberger.
To download this file you first sign in to your schlumberger account. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The inflow performance models of horizontal, undulating, and multilateral wells are developed in this study. Well completion engineering is an important component part of oil and gas well construction and a basis of field development implementation. Multilateral well completion systems for shale schlumberger.
The closed form model applies for relatively low vertical permeability formations for the singlephase system and two. It has a goal of ensuring regular and safe production and prolonging the production. Radial fractured wells are anticipated to be the next generation of oil and gas wells. While this decision will depend upon the cost of drilling and completion. A multilateral well can have lateral branches into different formation layers, multiple branches into the same layer, or a combination of both. Currently, 71 multilateral or fishbone wells taml15 have been drilled and. Figure 22 shows a well completion for a circulation well. Productivity prediction for stacked multilateral horizontal. Whether you are planning a few simple multizone wells or a field of complex multilaterals, you can rely on schlumberger expertise for preconfigured intelligent completion systems that deliver maximum performance for. Multilateral wells evaluation utilizing artificial intelligence. Laterals are completed openhole or with uncemented or cemented liners. Well completion has revolutionized in the last 40 years from the conventional vertical wells through horizontal wells to the modern multilateral and multifractured horizontal wells. Completion design optimization of multilateral well to maximize hydrocarbon production in a bottom water drive reservoir 1manish kumar, 2dr.
Well completion petronas fuel production petroleum. Simplify intelligent completion designwith flexibility. Worlds first level 6 intelligent completion drilled. Deepfrac deepwater multistage fracturing system baker. Production target achieved by a lower number of smart wells mubarak et al. Multilateral well definition and meaning collins english. Multilateral well drilling and completion plays an irreplaceable role in increasing single well output, tapping marginal reservoirs, enhancing oil recovery, and reducing the cost per tons of oil produced. Failure of a multilateral well comsol multiphysics. In coning situations, such as production of oil reservoirs with a bottom aquifer or a gas cap, utilization of multilateral wells will reduce the detrimental coning effect, then leading. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Multilateral completion systems allow the drilling and completion of multiple lateral boreholes within a single mainbore.
Smartwell system technology, introduced in 1997, was the industrys first intelligent well completion system. The setting of the production packer with a mechanical plug allows the lower leg in a multilateral well to be isolated and remain underbalanced while the second leg is drilled. A horizontal well has a better chance of intersecting more fractures than a vertical well, but there is a limit to how far horizontal wells can be drilled. Intelligent completion systems monitoring and control. The type of well completion affects horizontal well performance, and certain types of completions are possible only with certain types of drilling techniques. Wellcompletion effects on the performance of horizontal and multilateral wells. The number of wells, their orientation, disposition and inclination to the vertical, as well as the chosen type of completion and isolation, have led to the development of a number of.
Assessment and evaluation of degree of multilateral wells. Using speciallyadapted deepfrac ballactivated sleeves and patented beadscreen flowback control technology, the service. This paper covers both the drilling and completions aspects involved in drilling, casing, and completing a well with multiple drainholes. A well with two productive laterals is referred to as a dual lateral well. Hill is associate department head and holder of the robert l. Multilateral drilling and completions applications in. The setting of the production packer with a mechanical plug allows the lower leg in a multilateral.
Whether you are planning a few simple multizone wells or a field of complex multilaterals, you can rely on schlumberger expertise for preconfigured intelligent completion systems that deliver maximum performance for specific economic and technical conditions. Pete 636 horizontal, multilateral and intelligent wells. Currently, 71 multilateral or fishbone wells taml15 have been drilled and completed by using gwdcs technology. Completion design optimization of multilateral well to. Depending on the completion system incorporated into a multilateral well, it may no longer be possible to simply rig up on a well to often, run production logs or to add perforations. Mrc can achieved using horizontal wells, multilateral wells and extended reach drilling erd. The number of wells, their orientation, disposition and inclination to the vertical, as well as the chosen type of completion and isolation, have led to the development of a number of systems. Halliburton is the global leader in well completions and production. We work with our customers to identify their challenges and develop customized solutions to meet their needs. The deepfrac deepwater multistage fracturing service leverages tools and techniques perfected in unconventional land applications to help revolutionize the efficiencyand the economicsof offshore completions.
A horizontal well constructed with more than one productive lateral branching off a main wellbore is a multilateral well. In the workshop held in the pacific region, there was more discussion on the topics presented in the morning session definition of extended reach and multilateral wells, torque and drag, dual gradient drilling, and expandable tubulars than was anticipated. Multilateral wellsthose with multiple legs that branch off from a single wellcan produce oil efficiently because the legs can tap multiple productive zones and navigate around impermeable ones. Multilateral well drilling and completion plays an irreplaceable role in increasing singlewell output, tapping marginal reservoirs, enhancing oil recovery, and reducing the cost per tons of oil produced. The session on drilling fluids was also longer than expected. Thus, well length, the wells physical location in the reservoir, the tolerance in drilling location, and the type of completion that can be. A multilateral well is a well that has more than one branch radiating from the main. In these figures, the tube in the center is the tubing or drill pipe. In one aspect of the present invention, the method comprises the steps of. Horizontal and multilateral wells completions and stimulation. Reduce costs with multilateral technology that is compatible with conventional completion options. Completion with 1 packer to 6 packers, completing from 1. Click on applicable pdf file s to search through the wcrs. Enter a file name to search by section, township and range the file name for section 29, township 42 east, range 42 south is.
Multilateral well completion systems for shale plays enable confident, reliable well reentry and expansion while minimizing surface costs. The research in this paper provides rapid productivity prediction method for stacked well completion design. With our industryleading tools and experienced multilateral reentry crews, we deliver consistent service excellence with a clean, properlyangled casing exit. Pilot well to identify feasibility of multilateral wells to enhance oil recovery, reduce drilling costs. In petroleum production, completion is the process of making a well ready for production or injection. The twoleg multilateral well was drilled and completed from the ne intan a platform in the south java sea, indonesia, in approximately 75 ft of water, during the fall of 2002. Gwdc multilateral drilling and completion technology multilateral well drilling and completion plays an irreplaceable role in increasing single well output, tapping marginal reservoirs, enhancing oil recovery, and reducing the cost per tons of oil produced. Successful multilateral and horizontal wells require new considerations, interdisciplinary planning, and special techniques. However, the long horizontal wellbore can pose some serious. The models can be divided into two main categories. Slimbore drill pipe is used to drill the well, and the benefit of this is that the drill pipe is narrow enough to be run through the existing production tubing. Based on the success of genetic algorithm ga in problems of high complexity with high dimensionality and nonlinearity, they were used here as the main optimization engine. Multilaterals hold promise for shales the american oil.
The normal objective of both horizontal and multilateral wells is to produce more oil or gas from a well and to reduce the overall cost of producing each barrel of oil or each. Multilaterals can be constructed in both new and existing oil and gas wells. Kuwait oil company koc has recently drilled the first multilateral well in a north kuwait field to improve oil production in productive layers subjected to water coning problems by increasing reservoir exposure using level 4 multilateral technology. Ppt workshop on multilateral and extended reach wells. The basic applications and techniques for multilateral wells will be covered and participants will receive instructions on planning and evaluating horizontal wells based on the objectives of the horizontal well, and how to perform the proper planning for directional and horizontal well. Multilateral drilling and completion technology is a very fast moving area for the petroleum industry. To move toward addressing this problem, the authors present a study of data from 22 years of actual multilateral well applications, examining the true reliability of the technology. Multilateral drilling and completions applications in practice. C schematic of a horizontal well multilateral well drilling involves the drilling of two or more horizontal production holes from a single surface location see figure 2. A multilateral well multilateral wells have multiple completion options. Study of multilateralwellconstruction reliability onepetro. Simple vertical profile of a horizontal well, illustrating basic terms. The operator piloted a new wellcompletion design combining inflowcontrol valves icvs in the shallow reservoir and inflowcontrol devices icds in the deeper reservoir, both deployed in a waterinjector well for the first time in the companys experience.
Stabilize and strengthen the casing and control sand at the multilateral junction. Such an extensive data input poses a challenging task to decide on the optimal strategy of manipulating the inflow control valve icv settings over. Abstract multilateral drilling and completion technology is a very fast. This allows for alternative well construction strategies for vertical, inclined, horizontal, and extendedreach wells. Intelligent multilateral well completions provide downhole flow rate, pressure, and temperature measurements at multiple well segments, which allows for a continuous spatiotemporal data stream. Multilateral introduction sadvantages of multilateral wells s reduction in tangibleintangible costs s reduced surface and intermediate drillingcasing s less cementing s fewer wellheads and gathering lines s smaller pads s less manhours on location s operational efficiencies.
In this study, the records of one multilateral service provider have been analyzed from more than 800 actual multilateral installations, and success and failure. No other company has as complete a portfolio of technologies, capabilities and experience. Figure 21 shows a well completion for an injection or production well. Completion with 1 packer to 6 packers, completing from 1 to 5 zones in a single wellbore. After running the liner in the second leg, the completion can be run, and a second packer can be installed and stabbed into the lower packer.
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