Horizontal Well Performance Evaluation and Fluid Entry Mechanisms (1998)

Horizontal Well Performance Evaluation and Fluid Entry Mechanisms Chris Lenn; Chris Lenn Schlumberger Technical Services, Inc. Search for other works by this author on: This Site Google Scholar Fikri J. Kuchuk; Fikri J. Kuchuk Schlumberger Technical Services, Inc. Search for other works by this author on: This Site Google Scholar Justin Rounce; Justin Rounce Schlumberger Technical Services, Inc. Search for other works by this author on: This Site Google Scholar Peter Hook Peter Hook GeoQuest Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, September 1998. Paper Number: SPE-49089-MS https://doi.org/10.2118/49089-MS Published: September 27 1998 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Lenn, Chris, Kuchuk, Fikri J., Rounce, Justin, and Peter Hook. "Horizontal Well Performance Evaluation and Fluid Entry Mechanisms." Paper presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, September 1998. doi: https://doi.org/10.2118/49089-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Annual Technical Conference and Exhibition Search Advanced Search AbstractIn this paper, the use of various measurements is presented for performance evaluation of horizontal wells. The importance of formation evaluation and the challenges of testing in horizontal wells are reviewed. Factors affecting the productivity of horizontal wells are explored. The difficulties in horizontal well productivity estimation due to their long length in the formation compared with vertical wells and inadequacy of measurements during drilling and production are shown. It is also shown that how reservoir heterogeneity affects the reservoir pressure distribution and hence fluid entry profiles and well productivity. Using field examples, we show that the new integrated production logging measurements can be used to assess horizontal well productivity by identifying productive zones, fluid entries, and determining the fluid distribution (oil, gas, and water) in the well- bore. A range of fluid entry mechanisms from over twenty recently logged wells are described and classified. The continuing development of production logging technology for horizontal wells is described. The field examples indicate that horizontal wells have permanent water sumps, regard- less of whether they produce water or not, which leads to reduced oil entry. Performance simulations have shown that for these horizontal wells a 30 to 50 percent productivity (PI) reduction is found when they are compared with their full potential.P. 365 Keywords: water sump, productivity, production monitoring, performance evaluation, service platform, perforation, production control, field example, horizontal well, kuchuk Subjects: Well & Reservoir Surveillance and Monitoring, Formation Evaluation & Management, Production logging This content is only available via PDF. 1998. Society of Petroleum Engineers You can access this article if you purchase or spend a download.