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Keywords: formation damage
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Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, October 29–30, 2020
Paper Number: SPE-200515-MS
..., severe fluid losses, high mud costs, formation damage, and post-well production issues. Clear fluid brine systems such as Calcium Chloride (CaCl 2 ) and Calcium Bromide (CaBr 2 ) are usually preferred because of their compatibility with coals and their ability to minimize formation damage. However...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, February 24–25, 2010
Paper Number: SPE-130562-MS
... losses, also to reduce the formation damage. The C-349 H well was the first UBD horizontal well drilled by AGOCO. The paper discusses the objectives, planning, and the performance of horizontal UBD well as the first well drilled by AGOCO. balanced drilling experience exhibition annular pressure...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, February 24–25, 2010
Paper Number: SPE-130563-MS
... particular benefit for MPD in deep and HPHT wells. UBD is typically employed where minimizing formation damage or characterizing productive intervals or fractures is desired. It can also be used in cases where wellbore instability is not an issue and where a variety of pressure regimes may be encountered...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, February 24–25, 2010
Paper Number: SPE-130313-MS
... influxes, Low ROP Formation damage. NPT associated with constant mud density modifications Finishing the circulation, it was dropped the ball, after the ball was seated, the pump backpressure was maintained in the MPD choke until the liner hanger was seated, and with 2900 Psi pump...
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
... model. Fine grids are used to capture dynamic effects of pressure and saturation in the near-wellbore region. To model the formation damage in the near wellbore region, an integrated approach is introduced that combines dynamic reservoir simulation and local formation damage based on dynamic core flood...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference & Exhibition, February 12–13, 2009
Paper Number: SPE-122268-MS
... UBD is expected to prevent formation damage and improve well productivity, in some low permeability cases with high capillary pressure counter-current imbibition occurs and reduces well productivity specially for open hole completed horizontal wells. In this paper a new approach to model possible...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, January 28–29, 2008
Paper Number: SPE-113688-MS
... Abstract Underbalanced (UBD) operations are being utilized with increasing frequency as a means of reducing invasive formation damage, minimizing problems with differential sticking, lost circulation, and increasing rates of penetration in many drilling operations. Additional to the...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, January 28–29, 2008
Paper Number: SPE-114051-MS
... Abstract This paper describes the use of a numerical simulator for study of productivity improvement by application and proper performance of UBD in wells, which are faced with near-wellbore damage. Minimizing formation damage in the near-wellbore region and thus ensuring proper well...
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
... widely used in order to maximize oil recovery and reduce exploitation/drilling costs. Directional Drilling underbalanced drilling drilling operation circulation drilling fluid recovery zueitina oil company Upstream Oil & Gas fidaa field productivity formation damage production rate...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling & Underbalanced Operations, March 28–29, 2007
Paper Number: SPE-108332-MS
... machine learning annular pressure drilling Artificial Intelligence Upstream Oil & Gas underbalanced drilling scrubber separator formation damage successful underbalanced drilling reservoir drilling operation PPM iadc spe 108332 Injection Rate concentration equipment...
Proceedings Papers

Paper presented at the SPE/IADC Underbalanced Technology Conference and Exhibition, October 11–12, 2004
Paper Number: SPE-91544-MS
... effect. Finally, the simulation results as productivity gained are discussed for all cases. Introduction Minimizing formation damage that occurs during conventional drilling is a critical point for optimizing an oil field development, especially in fractured carbonate reservoirs. Mud invasion into the...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81647-MS
... upstream oil & gas drillstem/well testing economics reservoir surveillance mcfd longfellow drilling operation conventionally production rate casing design case history caballo formation production control wellbore stimulation formation damage drillstem testing condensate...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81621-MS
... permanent formation damage) and their impact on production under a variety of reservoir conditions. Production rates are predicted for both UBD and OBD cases. Then, an incremental net present value (NPV) model has been used to analyze the economic benefits of UBD operations (if any) for all study cases...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81622-MS
... damaged rock left open hole would be unproductive. Formation damage from the expected loss of 50,000 barrels of drilling fluid would require a fracture stimulation to regain productivity. To prevent these massive fluid losses while drilling and completing the well, the asset team considered near balance...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81625-MS
... the risk of formation damage if the bottom hole circulating pressure is maintained lower than reservoir pressure at all times. For this reason, it is very important to have good knowledge of pore pressures and bottom hole circulating pressures and their variations while drilling. The ability to...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81630-MS
..., Richardson, TX 75083-3836 U.S.A., fax 01-972-952-9435. Abstract Formation damage and reservoir attributes can only be effectively evaluated with high quality, pertinent data. Underbalanced operations require a complex array of techniques that enable data to be effectively collated and managed. With the...
Proceedings Papers

Paper presented at the IADC/SPE Underbalanced Technology Conference and Exhibition, March 25–26, 2003
Paper Number: SPE-81644-MS
... the delicate balance between the numerous coupled factors affecting the success of this operation. Introduction Recently, underbalanced drilling (UBD) has been used with increasing frequency. The purpose of using UBD is to minimize problems associated with invasive formation damage which often...

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