Day 3 Thu, December 01, 2022最新文献

{"title":"Data-Driven Decision-Making Strategy for Thermal Well Completion","authors":"H. Izadi, Morteza Roostaei, Mahdi Mahmoudi, Giuseppe Rosi, J. Stevenson, Aubrey Tuttle, Colby Sutton, R. Mirzavand, J. Leung, Vahidoddin Fattahpour","doi":"10.2118/212152-ms","DOIUrl":"https://doi.org/10.2118/212152-ms","url":null,"abstract":"\u0000 Various wellbore completion strategies have been developed for thermal wells in Western Canada. The idea in this paper is estimating the improvement of oil production and steam injection if flow control devices (FCDs) will be installed for the next wells to be drilled, or if FCDs were installed at a particular well-pad that has not yet been completed with any FCDs. The approach is based on labeled real data for 68 well-pads from seven major thermal projects in Western Canada.\u0000 Three phases make up the paper's methodology. The first phase compares wells with and without FCDs to evaluate the performance of the FCDs based on normalized oil production and cumulative steam oil ratio (cSOR). The second phase involves clustering well-pads using an unsupervised incremental-dynamic algorithm. An estimation of FCD contribution to enhancing oil production and cSOR is also performed for test well-pads based on their most similar cluster. In the third phase, cross-validation is employed to ensure that the estimation is trustworthy, and that the procedure is generalizable.\u0000 To evaluate the performance of FCDs, a reliable comparison was made using normalized oil production and cSOR. Based on our analysis from October 2002 to March 2022, successful FCD deployment resulted 42% more normalized oil and a 37% reduction in cSOR. Among these, liner deployed (LD) FCDs increased oil production by 44% while decreasing cSOR by 58%. Although tubing deployed (TD) FCDs are installed in problematic wells, they produced 40% more oil while decreasing cSOR by 21% in successful cases. Successful inflow control devices (ICDs) increased oil production by 40% while lowering cSOR by 45%. Successful outflow control devices (OCDs) increased oil production by 82% while reducing cSOR by 22%. The clustering algorithm separates the database into four clusters that will be utilized in the estimating phase. In the estimation phase, ten well-pads (15% of the database) are presumed to be new well-pads to be drilled (test data). Based on the estimation results, the root mean square errors (RMSEs) for FCDs contribution to enhancing oil production and cSOR for the test well-pads are 12%. Cross-validation was also performed to assess the approach's predictability for new data, to verify that our technique is generalizable.\u0000 The findings indicate that FCDs might result in lower capital expenditures (CapEx) and greenhouse gas (GHG) emissions intensity for SAGD well-pad developments, allowing them to reduce emissions. The conclusions of this research will aid production engineers in their knowledge of relative production performance. The findings may be used to examine paradigm shifts in the development of heavy oil deposits as technology advances while keeping economic constraints in mind.","PeriodicalId":344920,"journal":{"name":"Day 3 Thu, December 01, 2022","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124621003","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":"Individual Barriers Corrosion Monitoring Using Electromagnetic Measurements","authors":"Saud M. Al-Haddad, Hussain Hashim Shuber, A. Alaryan, P. Iqbal, Orkhan Nuriyev","doi":"10.2118/212151-ms","DOIUrl":"https://doi.org/10.2118/212151-ms","url":null,"abstract":"\u0000 Well integrity was and continues to be a significant priority for many operating companies around the world. A compromise in well integrity may have direct impacts on production sustainability well life and the environment. Well integrity became an important topic in the last decade after a number of the well blow-outs and oil spills around the world.\u0000 The new electromagnetic time domain tool (EM) which is presented uses transient or Pulsed Eddy Current (PEC) measurements to perform quantitative evaluation of downhole corrosion in four concentric tubulars individually and to inspect a fifth tubular qualitatively. Case studies are presented that compare results of this instrument with industry-standard single-string evaluation tools such as multi-finger calipers.\u0000 The novel electromagnetic tool which uses transient or PEC technology comprises three sensors which achieve high-resolution of the inner barrier and high radial depth of investigation for up to five barriers. Each sensor induces coaxial rings of eddy currents in multiple concentric tubulars and measures a time-varying response from the outward-diffusing eddy currents. The full transient responses from multiple sensors are then interpreted to obtain individual tubular thickness profiles.\u0000 Case studies are presented where electrochemical external corrosion has penetrated inward and has affected the inner most barrier by having through holes which are also verified with another high resolution Multifinger caliper tool.\u0000 Individual thickness measurement is valuable for proactive well integrity management because electrochemical external corrosion which is the primary corrosion mechanism in these wells causes the outermost casing to fail first and then continues to penetrate inwards. Therefore the new electromagnetic instrument enables early diagnosis of the outer tubulars to identify potential weak zones in the completion string while logging through tubing and eliminating the cost of pulling completions for this purpose.\u0000 The paper covers the basics of corrosion logging tools and the benefits and drawbacks of running various tools and the advantages of combining several together. Also how the tubing completion like packer setting depths can affect the production casing integrity as well as workover operation impact. New case studies with multi-finger calipers support these conclusions.","PeriodicalId":344920,"journal":{"name":"Day 3 Thu, December 01, 2022","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125427291","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":"Automation of Calculation and Management for HPHT Well Operating Limits - WIMS Coupled Engineering Analysis Approach","authors":"Obadah Al Sawadi","doi":"10.2118/212153-ms","DOIUrl":"https://doi.org/10.2118/212153-ms","url":null,"abstract":"\u0000 The objective of this paper is to demonstrate and discuss the implementation of an automated workflow that calculates and manages the Operating Limits of Oil and Gas wells, particularly HPHT.\u0000 The workflow is primarily based on representative well data and equipment inventory. It runs reliable engineering calculations (including tubular triaxial stress and sensitivity analyses) to define the well operating envelopes. It is aimed to 1) maximize the operating envelopes of well tubulars and downhole packers -compared to other conventional methods- and 2) prevent costly failures of critical well barrier elements (WBE).\u0000 Results of this automation were encouraging. 100s of SME time hours are saved. Reliable and consistent analysis are performed for MAASP/MAWOP and overall well Operating Envelopes. Millions of dollars are saved by preventing potential and costly unnoticed tubular and/or downhole packer failures that could have been prevented. HSE/ESG is better served. Furthermore, this paper initiates a discussion to review implementation and compare feasibility industry applied methods that calculate wells’ operating envelopes.\u0000 Important Note: All well data, engineering analysis, operating limits and well information etc., displayed or referred to in this publication, are not necessarily actual and only used for illustration purposes.","PeriodicalId":344920,"journal":{"name":"Day 3 Thu, December 01, 2022","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132635817","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}