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Keywords: horizontal well
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Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, April 9–10, 2019
Paper Number: SPE-194545-MS
... operator has introduced and used the Controlled Mud Level (CML) system. To date this system has been used on seven wells including two further appraisal wells on the same field and five exploration wells in the area. In 2017 it was decided to drill a horizontal well in the same carbonate reservoir and to...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, April 17–18, 2018
Paper Number: SPE-190009-MS
... horizontal well by DGD method in deepwater is presented. The prediction model is established based on the dynamic pressure balance of bottom hole. Two prediction models of offshore horizontal well's MMD by subsea mudlift drilling (SMD) method and hollow glass spheres (HGS) method are analyzed and established...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference & Exhibition, February 12–13, 2009
Paper Number: SPE-122275-MS
... Abstract This paper describes the results of an investigation of productivity and recovery improvement in naturally fractured reservoirs when using underbalanced drilling (UBD) technology in horizontal wells. A numerical simulator is used to simulate the results in terms of local changes in...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, January 28–29, 2008
Paper Number: SPE-114052-MS
... annular pressure drilling Libya enhance recovery calender time sabah field horizontal well reservoir national oil corporation conventional drilling problem Drilling SPE/IADC 114052 Applying Underbalanced Drilling Technology Improves Productivity and Enhances Recovery in Libya A.M. Gaaim, SPE...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling & Underbalanced Operations, March 28–29, 2007
Paper Number: SPE-108339-MS
... production experience does not lead to the expectation of a sand problem. The rock is prone to formation damage and early wells generally produced at low rates. The first horizontal well (W-6) was drilled with oil-based mud (OBM) and produced at an improved rate. The vertical well W-7 was also drilled with...
Proceedings Papers

Paper presented at the SPE/IADC Underbalanced Technology Conference and Exhibition, October 11–12, 2004
Paper Number: SPE-91593-MS
... is critical to the growth and acceptance of the technology. This paper attempts to assist in that understanding and provide a benchmark for thorough comparisons of UBD case histories for the future. Introduction Horizontal wells can be a very effective field development technique for several...
Proceedings Papers

Paper presented at the SPE/IADC Underbalanced Technology Conference and Exhibition, October 11–12, 2004
Paper Number: SPE-91489-MS
... performance bopd psi horizontal well overbalanced well open well ubd well productivity reservoir Overbalanced well Underbalanced wellFig. 1 Copyright 2004, SPE/IADC Underbalanced Technology Conference and Exhibition This paper was prepared for presentation at the 2004 SPE/IADC Underbalanced...
Proceedings Papers

Paper presented at the SPE/IADC Underbalanced Technology Conference and Exhibition, October 11–12, 2004
Paper Number: SPE-91558-MS
... framework of conventional reservoir modelling using, e.g., an existing geomodel of the reservoir, can still be reverted to. The flexibility of the technical realisation is illustrated by means of a UBD simulation for a horizontal well utilising unstructured grids. Introduction Advantages of UBD have been...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81626-MS
... authors attribute the most recent production boost (1989-1991) to UBD and horizontal wells. UBD in this case refers to flow drilling: drilling with water and a rotating head, and allowing the well to flow oil and gas during drilling. Table 1 quantifies the reserve addition associated with each phase. It...

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