Why You Should ChooseTop Drive Casing Running www.odfjellwellservices.com Top Drive Casing vs. Conventional Casing 4. Client’s testimonials . How can Top Drive Casing Running save you money? 5. Planning for the unexpected 2.Why you should choose Top Drive Casing Running Contents 1. What challenges can you meet on your way to TD? 3. Is top drive casing running right for you? 6. both schedule wise and economically. Planning for the unexpected The amount of considerations While contractors constantly seek to The process of top drive casing running minimize risks of NPT and increase the is typically a result of continuous needed in order to make sound effectiveness of drilling wells. The goals In this eBook we will outline the effects are common. nor a related to the operators profit. how to. but an overview of the method and an outline of the impact it has on a project’s effectiveness. With the discuss the effects it has on scheduling. suppliers all over the industry.Why you should choose Top Drive Casing Running 1. economic output from a project. their development and methodical approach to calculations. able to meet these demands are ahead while we look at the challenges and of the rest of the companies. . every little inch of improvement is directly Note: This is not a technical paper. reduce risk and efforts are met with continuous research the challenges of drilling wells. and the suppliers who are and benefits of top drive casing running. extreme focus on effectiveness and safety and economic output of a project. and development from scientists and is enormous. plan effectively to get to TD. Why you should choose Top Drive Casing Running 2. series of calculations. Yet none of them are willing to answer the question • Is it a wildcat operation? without careful planning and a • The rock/sediments • Cave in. • Reactive sediments in proportion to the drilling mud Despite the high level of • Changes in the formation layers expertise and the effort put in. reality another. The experienced engineer is able to use the following question for both contractors and information to predict the process to a certain degree: operators. What challenges can you meet on your way to TD? This is close to the ultimate Interpreting the seismic survey is one thing. Predictable formation pressure. o Faults or fractured formation no one can actually be decisive on a time or date when their But then the unforeseen trouble occurs: casing and liner reaches TD. • Cave in • Swelling • Casing shoe takes more weight than anticipated • Not able to come down • Not able to rotate • Not able to pull out (stuck) • Not able to circulate . push and pull on the casing while running reduces the risk for not being able to run the casing to target depth. The ability to rotate. To set the casing at planned depth is crucial for a successfully drilled well. .Why you should choose Top Drive Casing Running Getting the casing to TD This is more or less the fine art of assumption. to a certain extent a lot of talented and experienced engineers are remarkably precise in predicting the outcome of the drilling process. Do you know how the well will behave before it is actually drilled? Well. Furthermore these capabilities can reduce the time used to circulate and clean the well prior to setting the casing. circulate. and the whole project and the calculations are based on you reaching TD at first attempt. and highly skilled personnel. elevators and stabbers for your The simple principle of oil production is to drill a hole in casing running – wouldn’t you rather use just one remotely the ground down to the reservoir and pump the oil up to operated tool? the surface. The ability to make complicated As the tool is connected to the top drive of the drilling rig. fill-up and circulation tool. manual rotary slips. maintains the capabilities you normally would have during reduce risk. both onshore and offshore. . reduce people involved and save money. This means the ability to circulate. purely mechanical running tool.Why you should choose Top Drive Casing Running 3. it tasks easier makes the whole process easier. drilling operations. set down weight or pull the string. It can save time. distorts this picture and leaves us with really The Top Drive Casing Running Tool (TDCRTi) is Odfjell Well demanding tasks that require high-level technical installations Services internally gripping. Conventional Casing How many tools do you need? So instead of using a manual power tong. rotate. The complex nature of drilling. Top Drive Casing vs. all at the same time. • Filling tool. This can improve running speed on larger size casings by up to 20% by simply filling the casing as you run in hole. The 631 metric ton load rating also provides a good alternative to 750sTon Spider elevators that are often avoided due to difficulties related to picking up pipe from the catwalk. This removes personnel from the drill floor and simplifies communication between driller and casing operator.Why you should choose Top Drive Casing Running These are the primary applications for the TDCRTi: • MU tool. The tool has been utilized on the Gudrun field in the Norwegian North Sea with loads of up to 530 metric tons. Running flush or semi-flush casing strings often presents you with a unique set of challenges and will usually require the use of lifting caps and/or spider elevators. Together with the TT-sub the TDCRTi can fully replace a traditional MU- system by making up the casing connections with the DDM. The TDCRTi can provide a significant improvement in overall running speed by minimizing time spent filling casing with mud. MU-graphs will be wirelessly transferred to the TT-computer monitored by an OWS casing operator usually positioned in the drillers cabin. • Elevator. The TDCRTi does not require any type of lifting cap for lifting the casing string. . Once the tool has been engaged the filling process can start immediately. the driller is in services and equipment. • After rig up. It is only connected to the top drive with one connection. five ours for conventional tools. run casing without any electrical cables or hydraulical lines or interfaces to the rig. Vietnam. inserted auto slips with OWS remote operated safety The tool is complementary to OWS portfolio of casing running clamp™ or a flush mounted spider. on the rig and on the drill floor. compared to pausing for filling the casing.Why you should choose Top Drive Casing Running A mechanical tool is plainer Spend less time rigging and than a hydraulic more time drilling The OWS Top Drive Casing Running Tool (TDCRTi) has been The TDCRTi provides benefits compared to traditional casing available in our markets in Europe. Asia and the • One operator only Middle East since 2009. Asia and the Middle East running within safety. efficiency and reduced risk. Through the use of a patent pending extended reach die structure. hour Starting from the insertion diameter of the base tool. both on the base. interfaces to rig systems. Europe. This makes the TDCRTi capable of handling casings from 7” up to 26”. selected • Being able to fill the casing while running in hole can sizes of integral jaw/dies are used to configure the TDCRTi improve running speeds with up to 20% for larger tool to support gripping casing of increasing internal diameter casings. the gripping diameter can be further increased to include casing sizes much greater than the base tool. in transport. • Our history has shown that if you are able to pre-stack Wide range of diameters casing/tubing in the derrick (dual derrick). Canada. The size of the TDCRTi compared to tools required in The TDCRTi is field proven. offshore Norway and offshore the Middle East. and tubular operations The OWS TDCRTi is a purely mechanical tool with no hydraulic can commence. The popularity of the TDCRTi has time for OWS TDCRTi is about 30 minutes. compared to up to been remarkable. The rig up for quite some time now. reduces requirements for space millions of meters of casing onshore in Romania. OWS have successfully used the tool in a number of Can you reduce the size of your crew by using the right tool? operations offshore in the North Sea. Thailand. when connected TDCRTi to the top drive. In combination with OWS wireless position to run the casing alone with the support and Torque Turn sub (patent pending) the TDCRTi can be used to guidance of one OWS operator. having been used for running conventional casing running. (decreasing weight). • Cost effective • Saving cost related to persons on board (POB). ME. . the rig is able to run up to 27 joints or more pr. As the tool is operated from the driller’s cabin. operations by two to four persons. • Reduce the number of personnel around the rotary table. . be read wirelessly with the OWS Torque Turn sub™ and data can also be sent onshore to engineers if the rig have internet The TDCRTi has capabilities that significantly increases the connection and have capability to send data from drill floor to efficiency of casing running while reducing QHSE exposure. this connection. no personnel are • Enabling the client to circulate. reducing HSE exposure. rotate and reciprocate required in the red operating zone. reduces the number of personnel involved in the casing • Eliminate the need for a stabber. who is advised • Can eliminate conventional power tongs and equipment on by one TDCRTi supervisor that always follows the tool.Why you should choose Top Drive Casing Running Keep your crew away from the red zone The TDCRTi is fully controlled by the driller. This drill floor. Also the torque turn can immediately without hands on the rig floor. missing a detail or two is always present. increasing the success rate to set the casing the first When you consider top drive casing running. Choosing the right service and equipment for the job must be done in the context of the whole project. Simple intuitive operating steps for pipe engagement and calculate on ALL of the benefits of the service. Similarly. rig-in and rig-out steps are simple. But the challenges of a difficult well might In the planning of a project it is vital to consider all aspects of get you there if you don’t have the right equipment and the the process and given the complexity of the task. rotate to the right to engage. drive control using TAWG™ (Torque Activated Wedge Grip) technology. no details to be overlooked. and reverse master the challenges of a difficult hole. How can Top Drive Casing Running save you money? Do you plan for stuck? Get the whole picture Of course you don’t. included HSE. intuitive and fast. Focusing solely on This patent pending architecture puts control in the hands of cost of investment will not give you the whole picture. the driller. running a drilling project. They know that there are no shortcuts breakout. the ability to to run drill pipe-stab. This architecture has a proven track record in running close to two million meters of casing. release closely emulate the familiar make and break steps used scheduling. to disengage.Why you should choose Top Drive Casing Running 4. These tools are mechanically to be taken. This pressure has been instrumental in building a culture of care. circulation and rotation. accuracy and OWS TDCRTi tools are designed for casing running or drilling high work ethics among the people involved in planning and with top drive equipped rigs to enable connection make-up. no security matters to activated in tension and both rotational directions solely by top be skipped. . crew-sizes and of course. the risk of right experience to avoid it. rig time. be sure that you time. the rig up Time for OWS TDCRTi is about 30 minutes. • Reduced cost for additional/spare hydraulic power tongs and power units. drilling efficency • Save time. AND: • Avoiding extra rig time (NPT) by setting the casing at first attempt is probably the real money saver. TYPICAL COST PR. . • Casing operators on board can be reduced with up to 50 – 75% (2 – 3 persons).Why you should choose Top Drive Casing Running Costs of investments vs. HOUR FOR NORTH SEA RIG OPERATIONS WOULD BE BETWEEN USD 30 000 AND USD 50 000. compared to up to up to 5 hours for conventional tools. • No further interface to the rig or hook up of hydraulic hoses is required. 14 joints/hour average Rig 2: 6.6 8 6.Why you should choose Top Drive Casing Running Comparison between the TDCRTi and conventional equipment Comparing performance between rigs.4 10. • Casing hanger systems are identical • Both are developed by jack-ups • Casing designs are almost identical • Same drilling contractor on both fields • Casing setting depths are the same • Same operating company on both fields Rig 1: 9.9 7.0 6 6 5.0 10 10 8.4 8 7.4 6. They are very similar in many ways.1 10. except for casing running performance. fields and equipment is very difficult due to the number of variables that can have an impact on performance. 12 12 10.0 6. However two nearly identical fields offshore Norway provides us with a very good starting point for making comparisons.7 8.08 joints/hour average.9 4 4 2 2 0 Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 Well 7 0 Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 Joints/hour average Joints/hour average The time saved on a 4000 meter casing run is 18 hours! .3 4.8 8. The simplicity of operation is underlined by the fact that it is run by one man only.Why you should choose Top Drive Casing Running 5. A pure mechanical tool that makes up for at least when you plan and calculate a new project is still what might three other tools. The Drive Casing Running using the OWS TDCRTi. The result is easier skills of the drilling executive team and the information at hand. • One operator. we do have the tools to deal with there is no such thing as an easy hole. the reality kicks in soon enough. In this case. The conventional casing tools usually takes two to three operators to run. the reduction in people involved actually raises the level of safety. We all know that the the unexpected in a safe and reliable way. and the tons of experience from other projects power the craft of what to expect. Simplifies operation and cut rigging happen when the unexpected trouble occurs. Is top drive casing running right for you? How many easy holes are there? You can improve your margins! Whether you’re experienced or you’re facing your first big Although none of us is capable of exactly predicting the process project. planning and less NPT. careful collection of data. And the reality is that of a well bore operation. The big challenge • One tool. . Let’s recap the main benefits of Top is vital to make a sound decision on how to run a project. The safety issues are really big considerations in planning the project. time considerably. • Zero people in red zone. it would be an Even the smoothest way to TD is paved with unexpected understatement to say that Odfjell Well Services is experienced. you increase your operation are the key factors for reaching TD in the least that rate even further. We know better than anyone that and underlines the importance of experience. incidents that need to be solved right there and then. amount of time with the least amount of trouble. the skills of the men and women handling the most experienced crew to operate the tools. That Our track record on (TDCRTi) top drive casing running services is places a huge responsibility on the people running your project unparalleled in the business. you need professionals to rely on. . you increase your success rate to a certain level. By hiring preparations are. of the process and the character of nature itself. No matter how good your job. When it comes to top drive casing running. you’re better of being prepared for trouble. Given the nature when the going gets tough.Why you should choose Top Drive Casing Running Do you trust your wingman? At the end of the day your well bore operation is hugely reliable By using the best methods and the best tools available for the on your operators experience. Why you should choose Top Drive Casing Running 6.DDR report “The TDCRTi is time saving.Tool pusher . Attempted first without TDCRTi. M/U TDCRTi started circulating and worked string through to TD” Snorre B . and probably what made it possible for us to work through tight spots. NO GO.Senior Drilling Engineer “TDCRTi enabled us to work string to TD. To pump. NO GO on attempts without TDCRTi” Borgland Dolphin . Client’s testimonials “The tool functioned very well. and maybe we hadn’t managed to get the casing down without this tool. rotate and reciprocate were the key to success in these cases” Songa Dee . Odfjell Well Services Hammaren 19 P.com www.odfjellwellservices.O.Box 152 N0-4098 Tananger Norway Tlf: +47 51 64 84 00 Fax: +47 51 64 71 81 [email protected] .