Day 1 Tue, March 21, 2023最新文献

{"title":"Precise and Efficient Multi Ball Seat Milling Operation Executed in a Single Run Utilizing an Electric Line Deployed Milling String and Bespoke Multi-Step Mill","authors":"S. Murchie, Md Yousuf Iman, Knut Eirik Riise, Jens Storhaug","doi":"10.2118/212941-ms","DOIUrl":"https://doi.org/10.2118/212941-ms","url":null,"abstract":"\u0000 An operator had a critical offshore water injection well which was not performing as expected, having an injection rate well below target. The well had a lower completion comprised of four frac sleeves in the horizontal section. A light well intervention (LWI) operation was carried out to evaluate the ball seats and valve status, any blockage that might be present, and to determine the required intervention scope going forward. A camera diagnostic run indicated the presence of debris.\u0000 A subsequent LWI operation was planned, to deploy an electric line powered mechanical toolstringto mill out all four ball seats and perform a perforation operation across all zonesto generate the desired injectivity rate. Ball seats of reducing sizes had been deployed in the lower completionranging from 3.403 in. ID for the uppermost to 2.697 in. ID for the lowermost. The operator wanted the efficiency of a single run solution to execute the entire milling operation. This required a multistep mill of appropriate sizing to be designed, one that would mill all four ball seat sizes in the completionto a common maximum ID. This would then enable passage for subsequent deep penetrating or big hole perforation charges to be run.\u0000 The electric line string incorporated a high level of instrumentation to provide real-time measurement and control of the criticalparameters for milling optimization. A Tractor would provide toolstring conveyance, rotational anchoring, and weight-on-bit (WOB). Tension/compression subs would provide in-situ measurements of the WOB. Arotationalsub would provide the torque. Monitoring and adjusting the torque, WOB, and rotational speed in real-time would enable an optimized rate of penetration throughout all steps across all ball seatsconfronted.\u0000 Thorough pre-job tests were carried out on identical ball seats placed in a test-jig set up. Key toolstring parameters were monitored and the time required to mill through each ball seat was captured, this to determine the optimal tool parameters to use throughout the operation.\u0000 All four ball seats were milled out successfully in a single run operation, with the toolstring providing both milling and back reaming, this ensuring no sharp edges remained as a result of the milling. The full milling operation was completed in a matter of hours, far below those experienced by the operator on previous operations. Upon return to surface little to no wear was found on the step mill and all mill sections were found to still be well in gauge. In effect, the step mill was used as a drift run, post milling operation, allowing the perforation runs to immediately follow. Following the subsequent perforation operation, the injectivity rate increased considerably, this contributing to increased production from the neighbouring producer wells.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128259037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Proven and Versatile Coiled Tubing Live-Well Intervention Solution from a Mono-Hull Vessel in the Norwegian Continental Shelf","authors":"Kjetil Austbø, S. Andersen, J. Stuker, A. Keong, J. Campos","doi":"10.2118/212939-ms","DOIUrl":"https://doi.org/10.2118/212939-ms","url":null,"abstract":"\u0000 The operator together with intervention-vessel company and several service providers together developed a versatile riser solution for coiled tubing (CT) operations from a monohull vessel already performing riser-less interventions. The solution covers 200 to 500 m water depths and converts back to riser-less after CT operations.\u0000 From concept selection, a one-team approach was emphasized to drive project performance and involvement among participants and to develop a collective culture. The vessel team collected 3D models of all equipment to check interfaces and to develop a training simulator; physical interface checks were also conducted to verify space on the vessel. Due to harsh weather in the Norwegian Continental Shelf (NCS), a series of analysis and yard tests indicated the need for wellhead load relief systems, an extensive live-well returns and solids removal system, a CT pipe tension process and a CT tension frame (CTTF) for both CT and wireline (WL) together.\u0000 The CT operations on 3 proof-of-concept wells were successful. The riser deployment and CT packages were rigged up and tested before the operation. During execution, CT was stabbed in the CT injector head after the riser was landed on the well; this eliminated the CT pipe clashing with the V-door during landing joint deployment and eliminated CT reel cycling due to heaves during standby. A rail system inside the CTTF converted from CT to wireline operations in under 3 hours with no crane nor winch.\u0000 Metocean data indicated 1% of significant wave height (Hs) would exceed operating limits. Some of those waves occurred during CT operation. The experience demonstrated limits for Hs could be expanded above 3.0 m. Trace amounts of oil were recirculated and the operation was simplified when oil-water filters were bypassed. Initially, it took 6 days to run work-over riser, and by the third well this was reduced to under 4 days due to the robust common culture during the operation and a parallel deployment of the riser disconnect package. The CT option was demobilized after the operation and the vessel returned to riser-less operations with zero recordable health, safety, and environmental (HSE) incidents.\u0000 In the NCS, these were the first CT live-well interventions from a monohull vessel. The 3 operations were performed with zero recordable HSE incidents. The novel vessel compensation system and CTTF demonstrated significant improvements in efficiency when swapping between wireline and CT. The innovative one-team approach was successfully emphasized and enabled fast learning and seamless integration of novel solutions from coiled tubing, wireline, well-test, subsea and other involved parties.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122303517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing the Future of Gravity Deployed Well Intervention Conveyance","authors":"Arthur Jonathan Merrick, Jan Arie Aldo Huizer, William Richard Ash","doi":"10.2118/212916-ms","DOIUrl":"https://doi.org/10.2118/212916-ms","url":null,"abstract":"\u0000 At present there are significant strength to weight ratio challenges in the extreme well intervention market when regarding Extended Reach Drilling (ERD) wells. Conventional cable construction, even when jacketed, restricts either the total depth achievable or the size of toolstring conveyed due to the overpull available when considering the safe working load of the cable. We consider a fundamentally new conveyance construction that can operate both within and on existing well intervention infrastructure to address this challenge.\u0000 Our approach is to ensure the cables desired strength to weight ratio can be achieved whilst considering its fundamental properties including flexibility and fatigue life as well the suitability of its strength member for the application and environment. In order to achieve this static, dynamic and environmental testing has been conducted. In addition, to ensure integrity is maintained, rapid gas decompression and internal fluid migration are to be considered and tested.\u0000 As a result of the strict design envelope (which mandated a step change in strength-to-weight ratio whilst maintaining standard well intervention equipment deployment) the future of well intervention conveyance is now up to 75% lighter than the equivalent dimensioned steel cable due to the use of high specification composite materials. Notable challenges in bending radius, fatigue life, fluid migration and surface handling needs were overcome through a variety of unique proprietary approaches. A 0.25\" cable with 8200lbs breaking strength can now weigh only 13lbs per 1000ft when submerged in water, and comparative performance against existing cable technology for gas well deployments is even more notable. The future of well intervention conveyance, especially for ERD wells and unconventional applications, lies within high specification composite materials.\u0000 The practicing engineer will see how new well intervention conveyance can open up previously unreachable depths in the wellbore, and how a step change in strength-to-weight ratio improves operational performance by affording more overpull capacity. Whether the technology is applied to conveying heavier tool string in convention wells, or reaching greater depths in complex ERD wells, the use of composite wireline conveyance compared to traditional steel cable technology is clearly presented for the practicing engineer.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133439847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Successful Wax Clean Out Using a Coiled Tubing Telemetry System","authors":"D. Parra, Alizamin Taghiyev, Hajagha Mammadov, S. Craig","doi":"10.2118/212907-ms","DOIUrl":"https://doi.org/10.2118/212907-ms","url":null,"abstract":"A deviated well in Caspian Sea with 5-in open hole gravel pack (OHGP) screens started production on 2009 (Fig. 1). Oil production rate was stable until mid-2017 when it started to decline rapidly with a water breakthrough that reached 90% before well was shut-in on early 2022. Due to wax deposition in the tubing, 30 m3 of wax dissolver was injected in mid-2022, before the well was shut in. A de-completion operation to isolate existing reservoir and sidetrack started on mid-2022. During a slickline operation with a 4.275-in. drift, a hold up depth was reached at 60m MD recovering heavy wax on tool string. With a 3.5-in. gauge cutter and 3-in. dump bailer, maximum depth reached was 145m MD. At this time, a decision was made to perform a Coiled Tubing (CT) clean out operation until target depth of 4,200m MD for de-completion operation.\u0000 Three runs were performed with a tubing encapsulated electrical wire enabled CT telemetry (CTT) system which consists of a customized Bottom-Hole Assembly (BHA) that transmits real-time differential pressure, temperature, and casing collar locator (CCL) data for depth correlation to surface through a non-intrusive tube wire installed inside the CT. For the first time in the region, a Tension Compression Torque (TCT) sensor was deployed with a High-Pressure Rotary Jetting (HPRJ) tool to control the wax clean out process with accurate measurement of axial forces downhole. After successfully reaching 215m MD with HPRJ tool, two additional runs were done with the CTT system. First, a drift run with 5-in Outside Diameter (OD) fluted centralizer to confirm 7-in tubing section clearance up to 199.3m MD and a second drift run with 4.275-in fluted centralizer to target depth at 4,200m MD to confirm 5.5-in tubing clearance. Figure 1Well 3D Survey\u0000 CTT technology was a key element to successfully clean out wax on the 7-in and 5.5-in tubing sections. De-completion operations were completed after this intervention as follows: set a bridge plug at 4,115m MD, cut the 5.5-in tubing at 4,084.5m MD, circulate the well and pull out the upper completion to prepare the well for subsequent sidetrack operations.\u0000 Using the CTT system and TCT sensor for real-time data monitoring of the HPRJ tool at bottom-hole conditions during a wax clean out operation was proven, thus, expanding their use in the field.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130070865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved Bearing Design in Workover Motor Boosts Operational Efficiency for Plug Milling in North America","authors":"V. Unnikrishnan, Guruswami Navin, Frank Breitenfeld","doi":"10.2118/212913-ms","DOIUrl":"https://doi.org/10.2118/212913-ms","url":null,"abstract":"\u0000 Multi-stage stimulation in shale plays within North America land is still very predominant as of today and most operators continue with the already proven success of using frac plugs for zonal isolation. Post stimulation, intervention operation is carried out to remove the plugs via milling on coiled tubing or threaded tubing. Although dissolving or disintegrating plugs are gaining traction, vast majority is still of composite material and does require a proper bottomhole assembly (BHA) to ensure that the plugs are removed with maximum efficiency in one trip.\u0000 Coiled tubing (CT) service providers for milling frac plugs are using CT with an outer diameter (OD) ranging from 2\" up to 2 7/8\", with 2 5/8\" becoming the new normal compared to the previous normal of either a 2\" or 2 3/8\". Primary driver behind the use of a larger pipe is to ensure that CT can get to the target depth (TD) with the required weigh on bit (WOB) as well as to maximize the pump rates for milling in long lateral wells (>15,000 ft lateral length), thereby minimizing the need for short trips during the entire milling process. This increased flow rate and extended reach requirement in turn leads to the need for a more robust workover motor (WOM) that can handle the additional set down weights imparted on the BHA. Traditionally the WOM were derived from drilling services, where the process of hole making and stress acting on the motor is a lot different than the plug milling operations. Due to these differences, the reliability of the WOM can get compromised, which in turn will impact the operational efficiency.\u0000 This paper will discuss the steps incorporated to prevent drive sub failures, which were mostly caused due to the combination of bending load and torque transmitted by unwarranted stalling. The overload would cause a loss in compression around the upper radial bearing, which eventually leads to drive sub failing. Improvement potential was identified by increasing material strength and optimizing contact areas. Extensive modelling was carried out to improve the design, and materials with improved strengths were identified. Further, improvements were also incorporated into the lower thrust rings, both inner and outer. Field trials were conducted and based on the modifications, it was observed that the WOM failures were eliminated, thereby completing the mill outs in a single trip.\u0000 Improved design and material selection, helps in providing excellent service delivery, which in turn reduced the OpEx for customers carrying out plug milling in North America.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125628162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intelligent Decision Making with Comprehensive Visual Analytics Improves Downhole Diagnostics Efficiency While Saving Costs","authors":"S. Hamid, N. Abulhamayel, M. MacDonald, A. Alduraihem","doi":"10.2118/212895-ms","DOIUrl":"https://doi.org/10.2118/212895-ms","url":null,"abstract":"\u0000 \u0000 \u0000 Through innovative advances in video technology and image processing techniques, a 360-degree quantified imaging of the wellbore can now be acquired in a single continuous pass. Not only does this enable simplified, cost-effective intervention by significantly reducing the time required for acquisition, but the innovation also extends the application of video to a wider range of diagnostic and evaluative applications. This information can then be combined with other downhole datasets across the well.\u0000 These easily understood datasets provide immediate understanding of complex downhole situations. This information is used to identify and understand problems relating to perforation analysis, restrictions, leaks, corrosion, the condition and functional status of valves, along with numerous other undesirable downhole conditions.\u0000 This paper will demonstrate how the added efficiency, as well as the improved extended visual datasets acquired, provide a more comprehensive understanding of specific challenges, resulting in reducing operational time, risk and cost, and empowering improved decision-making to enable decisive action and enhanced productivity.\u0000 \u0000 \u0000 \u0000 This paper will use real-world examples to demonstrate how the application of visual analysis, quantitative measurements and 2D/3D modelling allows the improvement of intervention operations. A four-stage workflow will be described, detailing:\u0000 \u0000 \u0000 \u0000 detailing how the unique 360-degree sideview footage, combined with downview footage, was attained and how it allowed the complete wellbore conditions to be assessed with specific issues identified.\u0000 \u0000 \u0000 \u0000 utilizing interactive reporting platforms to render quantitative visuals, 2D and 3D models as well as combining the visuals with other downhole datasets in novel deliverables.\u0000 \u0000 \u0000 \u0000 assessment of the overall value of the operation, which includes the reduction in rig time due to efficiency improvements as well as the conclusions reached by the answers provided.\u0000 \u0000 \u0000 \u0000 The paper will show how the 360-degree footage of the wellbores aided in better understanding of specific downhole challenges. Additionally, we will demonstrate how the technology was able to diagnose downhole conditions that would not otherwise be possible with conventional datasets.\u0000 Each example will provide specific insights into the technical capabilities and the varied deliverables that were obtained. These examples will showcase the efficiency improvement realized in the course of these well intervention operations undertaken while providing diagnostic solutions that improve well performance.\u0000 \u0000 \u0000 \u0000 The techniques described in this paper involve the application of the world's first ultra-HD array side-view camera, providing complete visual wellbore coverage. Combined with a bespoke data analysis and visualization suite, intuitive and interactive log, 2D and 3D deliverables are provided. Critically, it provides production and well intervention engineers with indisputable ","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127822970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Cost-Effective Approach to Enhance Coiled Tubing Accessibility in Extended Reach Wells with the Use of a Special Lubricant: A Case History","authors":"S. Chishti, L. Sima, Mohamed Abd Elrahman Bukhari","doi":"10.2118/212894-ms","DOIUrl":"https://doi.org/10.2118/212894-ms","url":null,"abstract":"\u0000 As more and more longer extended reach (ER) wells are being drilled in the middle east, coiled tubing (CT) interventions are becoming a predominant challenge in terms of reaching total depth (TD). A major requirement for the operators is that CT reaches TD cost effectively to perform stimulation or any mechanical intervention. This paper discusses case histories for two extended reach wells where a 2-inch CT achieved 100% accessibility with the use of special CT lubricant.\u0000 There are many methods to enhance CT reach, but the simplest and most cost-effective method is the use of metal friction reducing lubricants. The methodology of using the lubricant is either based on filling the entire well with the lubricant solution during run-in hole or selective placement in specific intervals. Selective placement of lubricant is further cost efficient but can be compromising if the target depth is not reached during the actual job. However, by performing pre-job tubing force analysis and modelling various scenarios, it is possible to optimize the volume of lubricants required with minimized risk on the outcome.\u0000 In the first case history, full use of lubricant was applied from the beginning of CT run to successfully access TD in one of the longest well of the field with a TD in excess of 24,000 ft. and lateral length 14,000 ft. Pre-job modelling performed with offset data in similar completions predicted an early friction lock. After the first run, lubricant solution placement was optimized by conducting a thorough tubing force analysis (TFA) that helped understand friction profiles and helical pitch development determining the optimum intervals for pumping lubricants. Post job force match showed that the lubricant reduced the effective coefficient of friction (COF) by more than 30%. In the second case history, CT was able to reach TD of around 27,100 ft after lubricant placement was optimized and it reduced the COF by up to 50% from assumed base case.\u0000 The case histories presented in this paper demonstrate the benefits of using the special CT lubricant in reducing CoF and enhancing accessibility for CT in ER wells. It also discusses a methodology to optimize lubricant placement in ER wells with help of pre-job modelling on a proprietary CT simulator.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117114408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlating Sour Gas Testing with Successful Field Operations of High Strength Quenched and Tempered Coiled Tubing","authors":"K. Elliott, Scott Davis, Chris Rentas, Jason Hayworth, Tyler Woitas, Erica Meadows","doi":"10.2118/212878-ms","DOIUrl":"https://doi.org/10.2118/212878-ms","url":null,"abstract":"\u0000 Inhibition is considered critical to successful operations using high strength quenched and tempered coiled tubing in sour environments. Prior laboratory test results did not correlate well with initial field successes in Western Canada. The objective of this paper is to provide further testing that more closely matches real world applications and to provide additional field results from Western Canada.\u0000 Similar to prior work in Elliott et al (2022), the overall approach to this paper is twofold. The first part focuses on C-ring testing of quenched and tempered tubing to provide confidence, coiled tubing will not fail due to sulfide stress cracking (SSC) when properly inhibited. Testing was performed with a limited exposure time to account for the short window for CT operations and a reasonable inhibition effectiveness period. The second portion of the paper discusses best practices for coiled tubing operations in sour wells.\u0000 Laboratory C-Ring test results will be provided showing the effectiveness of the inhibition program as well as discussing the possible outcomes of utilizing coiled tubing in sour wells without inhibition based on the tests performed without inhibition. Discussion of the laboratory results will also describe the lessons learned in test plan development with respect to inhibitor effectiveness windows.\u0000 Following the practical best practices for sour well CT operations, the paper will also discuss field history of quench and tempered coiled tubing building on the initial trials reported in Elliott et al (2022). The paper will conclude with a qualification for each grade of quenched and tempered coiled tubing when used with inhibition for sour operations.\u0000 This paper expands upon the learnings of Elliott et al (2022) with testing program results that matches the field history of effective inhibition systems for high strength quenched and tempered coiled tubing in sour wells. This publication also explores the effects of sour exposure without the aid of inhibition, which serves to document the risks of forgoing inhibition in sour operations.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132711081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recover Stuck Drill Pipe in an Uncontrolled Well with Abrasive Cutting Technique on Coiled Tubing – Case Study","authors":"Nestor Mesa, Camilo Perez, Eddisson Aldana, Carolina Sanchez, Oswaldo Silva","doi":"10.2118/212906-ms","DOIUrl":"https://doi.org/10.2118/212906-ms","url":null,"abstract":"\u0000 Drilling low-pressure formations represent challenges. In the present paper, an operational situation became an issue when during the drilling of a deviated well, the circulation was lost, and the BHA got stuck, followed by a gas inflow observed in the return line. After a well control procedure and several failed attempts to control the well and recover the drilling BHA, another problem occurred when the drill pipe got plugged, making it impossible to continue pumping control pills.\u0000 The scenario described above was presented to the Coiled Tubing and Thru Tubing companies with the request of a proposal to help solve three specific goals to achieve remove the plug in the inner of the drill pipe, getting communication between the drill pipe and the open hole to be able to pump Lost Control Material (LCM) and control de well, perform a cut of the drill pipe in case the pipe couldn't be recover after control the gas inflow.\u0000 With an interdisciplinary group, the problem was analyzed, and a proposal was submitted, including three runs with Coiled Tubing and Thru Tubing tools. The first run a cleanout of the drill pipe with a downhole motor and taper mill. The second run will be with an abrasive punching BHA to establish communication with the annuls, and the third run will be for an abrasive cutting that will allow the recovery of the drill pipe above the free point. The job preparation includes the engineering program with the operational parameters and flow chart and the logistic preparation with the resources such as coiled tubing equipment, thru-tubing BHAs, chemicals, and fluids, among others.\u0000 During the operation, other discussions and revisions forced a change in the plan from the initial proposal, performing two of the three runs for the cleanout and abrasive cutting, which represented a benefit by controlling the well with the slurry pumped working as a LCM that helped control the gas inflow.\u0000 With a conclusion of a successful cut and drill pipe recovery, the operation data and analysis of the preparation vs. the execution are presented in the paper.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"504 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116329135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface-Controlled Subsurface Safety Valve Remediation and Lockout with Universal Exercising and Dimpling Solution","authors":"P. Foucher, Clevar Dyer, Jonathan Ramnath, Rodney Surajbally, Craig Gunness","doi":"10.2118/212930-ms","DOIUrl":"https://doi.org/10.2118/212930-ms","url":null,"abstract":"\u0000 This case study explains an innovative technique used to mechanically exercise and to lock open the surface controlled subsurface safety valve (SCSSV) in a well. The repair consisted of locking open the valve prior to installing a wireline insert in order to return the well to production. The conventional slickline method of locking open the SCSSV was not possible due to the position of the stuck flow tube.\u0000 As an alternate to a costly workover of retrieving the tubing and the SCSSV, a novel wireline technique was deployed providing a solution to exercise the flow tube and then lock open the valve.\u0000 This technique helped diagnose the cause of the failure, mechanically shift the stuck flow tube, and then lock out the flow tube in a single run. It can be used subsequently on any safety valve without mobilizing a custom mechanical lockout tool. The instrumentation provided real-time quality control of the process, reducing the risk for subsequent runs through the valve.\u0000 The solution consists of a wireline tool composed of two anchors with a linear actuator in between. The top anchor provides a fixed point in the tubing and the linear actuator extends and retracts to exercise the flow tube and measure the displacement and applied forces. At the bottom, a second anchor grips the flow tube and transmits the axial force of the linear actuator. The second anchor can also be used as a dimpling tool to deform the flow tube and lock it out by increasing the force of the lower anchors.\u0000 By measuring the amount of force and the opening diameter of the second anchor, the operator can choose either to exercise or to deform the flow tube at a suitable location without pulling out of hole. The final opened diameter of the lower anchor the tool can further confirm if the deformation range has been reached for locking open, providing additional quality control capabilities.\u0000 Moreover, the instrumentation generates a signature for each exercising stroke, highlighting the impact of this process. Eventually, the tool can confirm the final flow tube position showing if full movement is possible prior to dimpling.\u0000 The tool was deployed in a gas well to first exercise the flow tube, stroking up and down five times and recovering its functionality. This step was followed by leaving the flow tube in the closed position and performing a successful inflow test of the flapper. However, recovering hydraulic functionality of opening and closing via surface control line pressure cycles was not successful.\u0000 Eventually, the tool was run to mechanically shift the flow tube in the required position for dimpling in the open position. A subsequent drift run through the valve proved the effectiveness of the lockout.\u0000 The successful intervention proved that this advanced solution can exercise and dimple a SCSSV. Additionally, it can also be used on other flow control equipment, such as ball valves and sliding side doors.","PeriodicalId":433466,"journal":{"name":"Day 1 Tue, March 21, 2023","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126666461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}