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Deviated well

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Proceedings Papers

Paper presented at the SPE/AAPG Africa Energy and Technology Conference, December 5–7, 2016
Paper Number: SPE-AFRC-2554270-MS
... the Oligocene reservoir. To enhance oil recovery, horizontal wells (80 to 89° deviation) with single completion strings were designed to maximize reservoir contact. Hence, well completion, intervention, and workover strategies were the dominant challenges for techno-economics with optimal reservoir management...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21796-MS
... Abstract: Deviated well is the widely-used drilling well for offshore oil exploration and exploitation is limited by platform. Besides, owing to limited lifetime of drill platforms, simultaneous extraction is popular in exploration, and reservoir's anisotropy problems show up. In order...
Journal Articles
Petrophysics 44 (03).
Paper Number: SPWLA-2003-v44n3a3
Published: 01 May 2003
...Ertan Peksen; Michael S. Zhdanov ABSTRACT In this paper we study the principles of tensor induction well logging (TIWL) in a deviated well in an anisotropic medium. We examine the theoretical formulae for the tensor apparent conductivities of the transverse anisotropic medium, developed...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-0308
... Summary We develop the principles of tensor induction well logging (TIWL) in a deviated well in an anisotropic medium. We examine the theoretical formulae for the tensor apparent conductivities of the transverse anisotropic medium, developed for an ideal tensor induction instrument...
Proceedings Papers

Paper presented at the SPWLA 42nd Annual Logging Symposium, June 17–20, 2001
Paper Number: SPWLA-2001-R
... instrument in a deviated well penetrating a transversely isotropic medium. The foundations of the TIWL method were developed in Zhdanov et al. (2001), where the low frequency approximations for the quadrature components of the induction tensor were derived. In this paper we further examine the basic...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211712-MS
..., estimation of wavelets and low frequency modeling. These help us to understand the relationship between reservoir and acoustic properties. In this study, sonic logs were acquired in highly deviated wells penetrating highly anisotropic shale formations. These logs needed corrections before integrating...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0105
... ABSTRACT: The highly efficient production method of tight reservoir in complex fault block reservoir is large slope cluster well volume fracturing. The characteristics of fracture initiation and propagation in deviated Wells of tight reservoirs under different stress states and well trajectory...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2022
Paper Number: OTC-31407-MS
... Remark Issue on pipe cleanliness – First trial and highly deviated well The main challenge of XX-107 was to put the well into production as soon as possible once the well had been completed by hydraulic workover unit (HWU). This meant that operation time should be optimized to avoid prolonged...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2022
Paper Number: OTC-31496-MS
... Oriented perforation (OP): In a normal stress regime where vertical stress is the maximum of three stresses, oriented perforation would be successful if the well is highly deviated, and perforations are oriented in a vertical direction i.e., in one plane vertically. Therefore, deviated...
Proceedings Papers

Paper presented at the SPE Europec featured at 82nd EAGE Conference and Exhibition, October 18–21, 2021
Paper Number: SPE-205218-MS
... undulating the current oil/water contact (COWC). As a result, there is high uncertainty of the current oil/water contact (COWC) that impacts the drilling strategy in the field. The typical approach used to develop the field in the lower part of carbonate is to drill deviated wells to original oil/water...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 12–14, 2021
Paper Number: SPE-205592-MS
.... Tibbles at al (2007) noted that installing a conventional gravel pack could result in skin values of 40 to 50, mostly due to poor proppant packing in perforation tunnels. Therefore, operator required to find a reliable gravel pack carrier fluid optimization for typical highly deviated wells to overcome...
Journal Articles
Journal: SPE Journal
SPE J. 26 (02): 538–550.
Paper Number: SPE-204458-PA
Published: 14 April 2021
.... Fig. 6 Normal accelerations for section five when the wellbore is built to 80°. We also see plots that describe the lateral positions of the drillstring. The dashed vertical lines show where the well is deviated at 30 and 60° from vertical. The V ij s are defined by the eigenvalue...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21864-MS
... Abstract The completion of a highly deviated well involves overcoming significant deployment challenges during the drilling operations that require precise and effective conveyance and intervention. The conventional slickline intervention is unsuitable for wells with more than 60° deviation...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 22–25, 2021
Paper Number: SPE-204399-MS
... slickline deployment method proved unsuccessful, because of hold ups that occurred while running in hole—due to a well trajectory of 72 degrees deviation and 4.579 deg/100 ft dog leg severity, coupled with the small tubing inside diameter (ID) associated with the slim 3 ½ in. completion. Furthermore...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, November 2–6, 2020
Paper Number: OTC-30325-MS
...Abstract Abstract As the industry rebounds from recent pricing challenges, operators are searching for methods during each stage of their well—from drilling to production—to make the field more economical without compromising safety, health and quality. This paper describes a different method...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 11–13, 2020
Paper Number: SPE-203698-MS
... through placement of 575 ft of cement plug in the 3 1/2-in. tubing from 6,511 to 5936 ft MD. A rigless through-tubing balanced cement plug concept for cement packer installation and reperforations was deployed to access behind pipe oil reserves in a high-angle (69 to 72º) deviated well, Offshore Niger...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30811-MS
... AS drilled a deviated exploration well in the southern part of the Norwegian North Sea. The large 300 bar pore pressure uncertainty in the reservoir made it necessary to land the 9 7/8-in casing shoe as close as possible to the reservoir to maintain a safe kick tolerance. The pre-drill depth uncertainty...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195814-MS
... Abstract This paper demonstrates how 280ft of oil column spread unevenly across multiple and differentially depleted reservoir units separated by shale layers of varying thicknesses in a highly deviated (62 deg.) well was perforated in a one trip system and how the project cost was minimized...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 5–7, 2019
Paper Number: SPE-198727-MS
... was the engineering design, as this was the first time a catenary cement operation of more than 31.8 m 3 (200 bbl) of slurry would be pumped through coiled tubing (CT), in addition to the high well deviation (~79°) consideration for installation of the cement retainer. Additionally, insufficient deck space...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 5–7, 2019
Paper Number: SPE-198757-MS
... deviated well in differentially depleted multi-lobed reservoirs present significant operational risks. This paper illustrates how one can safely collapse multiple conventional perforation runs into a single trip with its attendant benefits on cost efficiency, crossflow and well control. This is the first...

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