We can plan your project and liaise with rig and fluid handling providers, as well as provide the tools and crew to complete the job. A new technique uses concentric coiled tubing with a jet pump to remove drilling induced damage from horizontal wellbores. Atkins supports bp on worlds first concentric coiled tubing boat spooling operation 03 september 2010 leading oil and gas experts from atkins offices in london and aberdeen have just completed a groundbreaking piece of work supporting bp on an innovative. Coiled tubing drilling ctd as performed today is generally considered to. Society of petroleum engineers coiled tubingand well intervention conferenceand exhibition 2007 march2021,2007 houston, texas, usa printedfromemediawith permission by. Tubing technical notes polymeric and rubber tubes also called hoses are used in vacuum applications for their flexibility, low cost, and relative ease of installation.
Coiled tubing drilling service antech ltd directional. Used to connect vacuum chambers, tubing and vacuum pumps to each other. Steven craig technical manager coiled tubing baker. Use concentric coiled tubing to cleanout proppant 2. In the oil and gas industries, coiled tubing refers to a very long metal pipe, normally 1 to 3. Debris and other partials from the wellbore are washed out of the well through the annulus between coiled tubing. Measured friction reducer effectiveness inside 3 4 pipe as can be clearly seen in table 2 the fatigue ballooning resistance of the smaller pipe is far superior when working at high pressures.
Nutone central vacuum pvc tubings3808 the home depot. For reference a brief history of vacuum and a summary of important and basic vacuum concepts are first presented. A users guide to vacuum technology, 3rd edition focuses on the operation. S applied drilling engineering, spe textbook series, vol. Through examining customer needs, hunting has provided many innovative and technical solutions such as the wellgripp connector, designed to. Masted coiled tubing units perform conventional operations and are available in multiple configurations customized for specific drilling and intervention. Coiled tubing vacuum restores north slope wells spe. Semantic scholar extracted view of concentric coiled tubing drilling system by hakon sandven. Department of mechanical engineering, federal university of technology. Tubing technical notes vacuum science is our business. Concentric coiled tubing technology revolutionizes logging. Past, present, and future rodolfo sanchez pineda, simon d.
Coiled tubing well the global oil and gas industry is using coiled tubing for an everincreasing array of well intervention projects. Jan 11, 2018 an embodiment of a spiral vortex generating wash nozzle 100 for use with the coiled tubing spiral venturi tool disclosed herein is illustrated in fig. Pdf concentric coiled tubing drilling system semantic. Eitubing this highly vacuum insulated tubing benefits from the technology of the itubing associated to a robust heat traced system. Flexible, smoothwalled vacuum tubing highquality gum rubber cartons contain 48 to 50 feet 14. Coiled tubing times issue 4, english version digital edition. How perfect a real vacuum is can be quantified in terms of the absolute pressure inside a chamber. Spe154214 improving coiled tubing plug driilout operationsin shalegascompletions 265 vanessarowden,joddiecarlile, manuelchavez, spe, shellupstreamamericas spe154221 production logging on coil tubing in a marcellus shale horizontal completion 270 a. Figure 24 baker hughes ct rig up on gullfaks c, photo by magnus wingan wold concentric coiled tubing drilling system figure 24 baker hughes ct rig up on gullfaks c, photo by magnus wingan wold concentric coiled tubing drilling system. By supplying downhole power toand receiving realtime data fromyour bha, you can intervene at exact depths, monitor. Concentric tube heat exchanger emd5mia page 1 title. Threestage sagd liner intervention to remediate a liner. Coiled tubing technology 19951998 dea67 phase i1 project to develop and evaluate coiled tubing and slimhole technology maurer engineering inc.
I think we continue to see an increasing move towards the high technology coiled tubing such as coiled tubing drilling and bj concentric coiled tubing for low bottom hole pressure wells. Table 57 from concentric coiled tubing drilling system. Coiled tubing manual ctes, lp 9870 pozos lane conroe, texas 77303. Torr, 150 c flanges are connected by an elastometer ring and held together by a ring clamp. Introduction of concentric coiled tubing vacuum technology cctvt in azerbaijan offshore to. James joseph enniss 3 research works with 8 citations and 15 reads, including. Table 55 maximum flow rate in 8,5 section concentric coiled tubing drilling system table 55 maximum flow rate in 8,5 section concentric coiled tubing drilling system. Convoluted flexible metal tubing and hose can compensate for misalignment and system reroutes between static connections in vacuum or lowpressure static applications. Smith, bennie jackson lindsey, mounir ababou, michael john taggart.
Halliburton rigless well intervention services are costeffective when compared to drilling rigs and workovers. A study of vacuum consolidation accompanied by the substitution of pore water with air. Coiled tubing cooling centrifugal fan vacuum equipment superdry double pt 100 conductivity meter ultra. Design and construction of a concentric tube heat exchanger. The string can then be run with a modified vacuum bottomhole assembly and a logging tool to achieve production analysis and logging simultaneously. The technology was initially focused on sand cleanouts in heavyoil, lowpressure, deviated wells, where other cleanout methods, including conventional ct interventions, were inefficient. Introduction to vacuum technology iswa 2016, july, 3 8, campinas. Majus has developed sophisticated tubings able to circulate extremely hot fluids up to 525c in order to produce oil shales deposit. Mill out nipples to accommodate completion extensions 3. What every engineer should know about vacuum insulated tubing. Luis pinero coiled tubing operations manager at baker hughes, a ge company.
Instead, a conventional concentric coiled tubing cct string can be transformed into a specialty cct by adding an encapsulated singleconductor wire inside. Wiley also publishes its books in a variety of electronic formats. In the diagram the cold fluid flows through the inner tube and the warm fluid in the same direction through. The technology was initially focused on sand cleanouts in heavy. Used coiled tubing unit for sale oil patch surplus. L central vacuum system flexible tubing 6pack cf367. Jason skufca engineering manager, coiled tubing nine. There are several recent coiled tubing reentry opportunities in both russia and central asia that schlumberger is pursuing. Mccluskey, shell exploration andproduction spe154234 successfulcementing through coiled tubing e.
The system uses concentric coiled tubing and a special vacuum tool designed to apply a localized drawdown, which would deliver the sand particles through the coiled tubing coiled tubing annulus to surface. The bourdon tube is a coiled tube of elliptical cross section, fixed at one end and. The bj services sandvac cleanout tool is based on a jet pump comprising a highpressure nozzle, suction port, and diffuser fig. Table 57 maximum horizontal length to be drilled in production wells at wisting concentric coiled tubing drilling system. Cleaning largediameter proppant in lowbottomhole pressure, extendedreach wells with concentric coiled tubing. Jet pumps are primarily used to produce and maintain a vacuum by removing. Therefore, vit significantly reduces the amount of heat a well loses to its surroundings above the bitumenbearing zone. Table 55 from concentric coiled tubing drilling system. The technology was initially focused on sand cleanouts in heavyoil, lowpressure, deviated wells, where other cleanout methods, including conventional ct. Coiled tubing systems and services baker hughes, a ge. Itubing vit vacuum insulated tubings with threaded connection majus is a supplier of vacuum insulated tubing featuring major innovations for the insulation material and for the design of the connection that guarantees together long term thermal performance with an overall uvalue less than 0.
A perfect vacuum is a region of space which is free of all matter. Injector heads can also be tailored to fit specific requirements. Enhanced solids removal techniques from ultra low pressure wells using concentric coiled tubing vacuum technology spe 107010 march 21, 2007 covers the operation of sandvac technology. Hpt offers a variety of capacities to fit your needs. Concentric coiled tubing cct technology has been used to clean out horizontal slotted liner sections with suspected sand fill. Antech provides a complete directional coiled tubing drilling dctd service using its proprietary colt and polaris bottom hole assemblies bhas. Vacuum insulated tubing industrial technology management. We can bring you significant benefits of directional and horizontal wells whilst drilling underbalanced. The thin layer of air found between the tubulars is removed. Swagelok ct convoluted vacuum flexible tubing can be compressed by at least 15% and extended up to 50% of manufactured length. The selfextinguishing properties make it safe for your homes walls.
The upper zone is produced by the upper esp which is configured with the rmspumptools dual flow ytool. Concentric coiled tubing wash tool works with concentric ct to remove solids and liquids from ultralowpressure wellbores that are not treatable with standard circulation tool. An introduction to well intervention scan this with your smart phone for the. Write down six different units of pressure in your lab book and relate each one to at least one other. Vacuum technology cctvt is the most used application of cct today. Luis pinero coiled tubing operations manager baker. Concentric coiled tubing drilling system ntnu open.
Concentric coiled tubing gas injection string provides economical gaslift solution on heidrun tlp on the. Quantums revolutionary jetvak system utilizes concentric coiled tubing cct to effectively deploy a closed hydraulic circuit, resulting in guaranteed circulation in wells that can go. Sand vacuuming technology addresses these challenges by utilizing a jet pump powered by single phase liquid which carries all of the returns up the concentric coiled tubing cct annulus. The following discussion outlines some of the inventions and major milestones that directly contributed to the evolution of the continuouslength tubular products used in modern ct services. Used coiled tubing unit land and offshore coiled tubing units are configured in standard trailer, truck, skid mounted and mastered versions that can be tailored to meet specific needs. Novel technology of concentric coiled tubing enhances ultralow. Rig up the vacuum truck discharge hose to the inlet side of the centrifugal pump. This sand fill reduces well productivity due to sand bridging within the slotted liner. This is accomplished by using a parallel tubing or concentric tubing installation, setting the intake of the pump. Conflat flanges knife edged rims inside create grooves on the gasket for the seal. One alternative is to clean out the fill by means of concentric coiled tubing cct with a downhole vacuum tool. The concentric coiled tubing vacuum tool has been run in a variety of wells with complex damage problems.
Coil tubing technology inc november 12, 2017 coil tubing tehnology ctt specializes in the design of proprietary thrutubing tools for the coiled tubing industry and provides a full line of completion tools, manufactured in accordance with and to oil industry specifications. Lower casing and cement temperature and thermal stress. Coiled tubing is a very viable tool and exceptionally good when it is used for the right application. Chew boc edwards, crawley, united kingdom abstract this presentation gives an overview of the technology of contemporary primary and secondary mechanical vacuum pumps. The presented product diagrams and data are provided to help promote a more comprehensive understanding of vacuum technology and are not offered as an implied warranty. Numerous continuouslength tubular service concept trials and inventions paved the way for the creation of present day coiled tubing ct technology. Central vacuum installation parts free delivery possible on eligible purchases. The application is more widely used compared to coiled tubing drilling from the surface.
Coiled tubing is often used to carry out operations similar to wirelining. Coiled tubing times issue 4, english version digital. The present invention comprises insulated coiled tubing andor concentric coiled tubing. Association dea67 phase ii project to develop and evaluate coiled tubing and slimhole technology and their affiliates, and is not to be disclosed to other parties. Key to operating a jet pump on small concentric coiled tubing is utilizing high pump pressure. The concentric tube heat exchanger was designed in order to study the process of. Our coiled tubing injectors are designed with safety, functionality, durability, and affordability constantly in mind. Utilization of insulated andor concentric coiled tubing with conventional huff and puff steam injection processes may offer advantages for operators. The lower the pressure, the better or higher the vacuum. So, ultrahigh vacuum technology is essential for microscope. Quantums revolutionary jetvak system utilizes concentric coiled tubing cct to effectively deploy a closed hydraulic circuit, resulting in guaranteed circulation in wells that can go to zero. Atkins supports bp on worlds first concentric coiled. This provides a unique tubing with equivalent heat loss equal to 0 or. Traditional steam assisted gravity drainage and other techniques may also find use for the novel apparatus.
In this paper, a continuous vacuum cleanout technology will be introduced, and it combines a novel jet pump with a concentric tubing string cts to remove coal particles without placing. Concentric coiled tubing vacuum technology cctvt was developed in the mid 1990s in canada, and since then has spread worldwide. The society gratefully acknowledges the companies that support this program by allowing their professionals to participate as lecturers. Schlumberger ctdirect coiled tubing directional drilling. The dualctd system consists of two concentric coiled tubing ct strings that form a separate circulation system for the drilling fluid. Vacuum insulated tubing vit is a multilayered high vacuum getter maintained insulation system for the control of downhole heat flux with many downhole applications including. Fractionating pumps 23 have concentric chimneys and. Ic compensated differential coil set for pickup of. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells. Pdf cleaning fill from wellbores is the most common coiled tubing ct application. Luis pinero coiled tubing operations manager baker hughes, a. New coiled tubing jet cleaning system reduces costs. Make up jointed pipe completion extension, deploy through coiled tubing injector head into well and run on concentric coiled tubing 4. Inlet and exit ducts are provided for the two fluids.
University, for encouraging me to publish this book. An advantage of the concentric method is removal of the need to kill the well during the operation. Hpt supplies injector chains and other various replacement parts. Having the same center, such as when the casing and the wellbore have a common center point and, therefore, a uniform annular dimension. The spe distinguished lecturer program is funded principally through a grant from the. Coiled tubing offers a number of operational and economic advantages, including.
A novel, low temperature and pressureless bonding technique has been developed to fabricate al2o3. Insulated andor concentric coiled tubing bj services. Maximize bottom hole steam quality and minimize heat losses. Relative sizes of concentric coiled tubing systems figure 6. Novel technology of concentric coiled tubing enhances. Navarros profile on linkedin, the worlds largest professional community. Vacuum tubing is 10 ft per pack and 50 ft per carton. Successfully implemented the concentric coiled tubing vacuum technology in lake maracaibo and acid. The application of cct technology reduces the risk of lost or limited fluid returns and provides an effective clean out method.
Handbook schlumberger 2015, a free reference book on ct sizes, casing sizes etc. Figure 24 from concentric coiled tubing drilling system. Drilling fluid is pumped down the annulus between the two ct strings to the bottom hole assembly bha where a mud motor generates rotation of the drill bit. The ctdirect coiled tubing directional drilling system minimizes reservoir damage during underbalanced or managed pressure drilling. A new technique uses concentric coiled tubing with a jet pump to remove drillinginduced damage from horizontal wellbores. Returns were handled using h2s resistant lines into a desander. The jetvak is a concentric coiled tubing assembly that includes an engineered jet pump, jetting head, and recorder in the bha to gather bhp, bht. Vacuum insulated tubing vit vit comprises of two concentric tubing strings. Telecoil intelligent coiled tubing services reduce jobtime and accelerate well recovery in all major interventions.
Figure 312 from concentric coiled tubing drilling system. Coiled tubing reentry drilling technology was implemented in russia successfully through several projects. Coiledtubing vacuum removes drillinginduced damage oil. With our coiled tubing, hydraulic workover, electric wireline and slickline capabilities, we can provide such services as electric logs, drilling, perforating tubing or casing, pumping and stimulation, sand control completions, well control, snubbing, recompletion, abandonment and.
Other articles where concentric tube heat exchanger is discussed. Demountable engagement of the coiled tubing spiral venturi tool to a concentric coiled tubing is shown in figs. A significant volume of technical data was contributed to this manual by. Introduction of concentric coiled tubing vacuum technology cctvt in azerbaijan offshore to perform sand. Nutone central vacuum hose pvc tubing is semirigid with exceptional tensile strength.