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• W4250829455 abstract "Expandable Liner Hanger Resolves Sealing Problems and Improves Integrity in Liner Completion Scenarios James W. Williford; James W. Williford Halliburton Energy Services Group Search for other works by this author on: This Site Google Scholar Peter Elliot Smith Peter Elliot Smith Halliburton Co. Search for other works by this author on: This Site Google Scholar Paper presented at the Production and Operations Symposium, Oklahoma City, Oklahoma, U.S.A., March 2007. Paper Number: SPE-106757-MS https://doi.org/10.2118/106757-MS Published: March 31 2007 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Williford, James W., and Peter Elliot Smith. Expandable Liner Hanger Resolves Sealing Problems and Improves Integrity in Liner Completion Scenarios. Paper presented at the Production and Operations Symposium, Oklahoma City, Oklahoma, U.S.A., March 2007. doi: https://doi.org/10.2118/106757-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Oklahoma City Oil and Gas Symposium / Production and Operations Symposium Search Advanced Search AbstractConventional liner-hanger systems typically rely upon the primary cement job as the main method of sealing the liner/casing overlap, and liner-top packers are run either integrally with the liner hanger or separately in a second trip. In certain applications, however, cementing the complete liner may not be feasible or obtaining a primary cement seal at the liner top may not be achievable; in these situations, a liner-top packer must be used as the primary seal. In cases where the top of cement is above the overlap but below the hanger, the liner top packer is used as a back-up seal for the overlap.Almost all liner-top packers that are run integrally to the liner hanger are set through the application of weight applied through the drill-pipe or landing string. The capability of the liner-top packer to seal with a single element at the maximum pressure rating requires that a sufficient setting force of up to 100,000 lbf be applied through the drill pipe to the packer mechanism. Work performed in Latin America recently showed the limitations of this process and how shallow liner-top installations might not have the string weight to apply a sufficient setting force to the liner-top packer.A conventional alternative to an integral packer design is a secondary tie-back packer, but this alternative requires at least two extra trips into the wellbore and picking up of a string of large drill collars to supply the significant force required.A solution was found that was capable of resolving this problem, and the innovative technology applied will be the focus of this paper. An expandable liner hanger that allows a hydraulic setting force to be applied locally to the hanger was used. The setting force for the packer was measurable and consistent. With the success experienced on the first well, the expandable liner hanger was used in subsequent jobs, and in all of them, the operator saved several days of rig time in addition to experiencing a successful completion.IntroductionHistorically, problems obtaining a good primary cement job at the top of liner have been associated with the installation of a liner in oil and gas wells. To back up the primary cement job, the conventional liner-top packer, which is mechanically set by applying weight down or by a combination of weight down and rotation, was developed. This method has been accepted by the industry to some degree for use with most modern types of conventional liner hangers and setting tools. At times, however, it has not been possible to fully energize the liner- top packer sealing element when string weight has not been sufficient to apply the minimum recommended weight down to energize the element. In other cases, due to well deviation and/ or drag, the pipe weight deployed has not been capable of acting effectively enough on the liner-top packer to create the seal.Because conventional liner tops have been prone to failure, operators in the Gulf of Mexico performed an informal study in 1999 and highlighted several problems associated with liner tops during the 18 months prior to the survey.1(Fig. 1).2, 3Prevalent among the failure modes were:Liner top integrity---lap squeezesPacker/hanger/centralization issues --- presetting, failure to set, or failure to sealShoe integrity --- shoe squeezesThese results confirmed earlier studies that identified the effort and expense that operators must sustain to ensure liner-top hydraulic integrity.Expandable liner-hanger technology was designed to eliminate the failure modes mentioned above. Several major advantages over conventional systems have been noted, and these include successful deploying, cementing, and isolating liner tops in shallow wellbore situations (Fig. 2). This paper provides details of the Latin America experience. Keywords: completion equipment, expandable liner hanger resolve, hanger body, zonal isolation, casing and cementing, expandable liner hanger, Completion Installation and Operations, Upstream Oil & Gas, liner hanger, cement job Subjects: Casing and Cementing, Completion Selection and Design, Completion Installation and Operations, Well Integrity, Completion equipment, Zonal isolation This content is only available via PDF. 2007. Society of Petroleum Engineers You can access this article if you purchase or spend a download." @default.
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• W4250829455 title "Expandable Liner Hanger Resolves Sealing Problems and Improves Integrity in Liner Completion Scenarios" @default.
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