... conventionally would increase the risk of the well taking a kick that could directly affect the time required to drill the well to its target depth. A closed-loop system was used to anticipate the well taking an influx of shallow gas while drilling this formation. In the event of the well taking an influx...

... Abstract A simple power-law model is presented for performance of gas reservoirs experiencing water influx using only cumulative production, reservoir pressure, and the gas deviation factor ( i.e., the z-factor). The application of the model provides estimation of gas-in-place. The gas...

... event detection systems. Using simplified fluids physics models, this paper describes how a surface-based event detection system is disadvantaged in identifying changing or deteriorating downhole conditions. Examples include cases of gas solution following an influx and undiagnosed wellbore instability...

... and recovery and remaining potential in the reservoir. The X-plot technique is used for estimating water influx from production data. Water injection requirement is worked out based on water influx, historical and current voidage. The methodology also shows a workflow to estimate future water production en...

... drilling fluid selection and formulation international petroleum technology conference high-pressured formation latest response zonal isolation well integrity challenge bha influx Introduction Analyzing offset well data in a radius of 10 km is the conventional practice to identify...

... by reducing the surface back pressure and the well observed for signs of influx during the process. These MPD inflow tests can either be performed in a static environment (no flow down the drill string) or in a dynamic environment (pumping down the string string), depending on the mud weight strategy in use...

... to mitigate issues that can compromise safety and impact the AFE of the well. Abstract This case study describes the approach taken when drilling an 11 5/8-in. hole section through a salt formation on the Chinarevskoye field in the West Kazakhstan Oblast region where high-intensity brine influxes...

... with a large number of problems. The drilling problems included high pressure influxes, stuck pipe while controlling influxes, circulation losses with high mud weights and ECD’s, differential sticking against permeable formations, inefficient bottom hole pressure control due to mud weight reduction with high...

... in the fractures and was eventually removed from the wellbore. This new technique is safe, reliable and reduces the frequency and likelihood of formation influx and losses. It ultimately improves crossflow management and minimizes non-productive time associated with lost circulation. This paper will discuss...

... Abstract Influx and loss are the two most common downhole complexities. They not only cause the reservoir damage, increase the exploration cost, reduce the drilling efficiency; but also induce major malignancy. Therefore accurate and early detection of influx and loss during drilling...

... Reservoir Heterogeneity picd joint influx PICD completion saturation compartment PICD design Saudi Aramco fracture fluid influx wellbore Abstract Passive Inflow Control Devices (PICD) became a commonly used completion method for horizontal wells over the past decade. PICD restricts a flow...

... Engineer rig influx IPTC-18037-MS Remote Operations Center Applies UBD Techniques to Reduce Well Control Non-Productive Time Keith Smelker, Shell Exploration; Ahmed El Morsy, Jose Mota, and Antoine D Amore, Shell China Copyright 2014, International Petroleum Technology Conference This paper...

.... In order to optimize casing setting depths in a narrow margin HPHT drilling environment, dynamic flow checks and dynamic formation integrity tests using managed pressure drilling technology were used to define the lower and upper boundaries. The dynamic well control simulations take an influx followed...

... as mud pumps are stopped (i.e. during pipe connections), leading to a high potential risk of influx from the formation into the wellbore. real time system drilling operation pore gradient high pressure well drilling fluid management & disposal Upstream Oil & Gas operative margin...

... drilling design nitrogen reservoir study influx Abstract When overbalanced drilling is done in depleted reservoir, lost circulation occurs and cause formation damaged. Underbalanced drilling (UBD) is proposed to be done to prevent lost circulation and increases production due to minimizes formation...

... Abstract The standard well control training drillers receive in the industry prepares them to respond to an influx that occurs during underbalanced conditions. The mechanism through which hydrocarbon may enter the wellbore following a vugular loss can differ from this. One potential result...

... efficiency saturation reservoir relative permeability Material Balance reservoir study fluid migration enhanced recovery Upstream Oil & Gas water saturation oil saturation Jaleha sector Scenario influx Copyright 2009, International Petroleum Technology Conference This paper was prepared...

... of the "water flow reservoir" is the first step in effectively managing each well control event. Shut-in data is collected first to verify the influx is due to a water flow interval. If it is verified the influx is due to a water flow, inflow testing is done to assess the deliverability characteristics...

... issues; less drilling flat time, and enhanced control of the well. Unlike UBD that invites influx of hydrocarbons during the drilling process, MPD does not invite influx. The intent is to discourage influx by maintaining a state of effective overbalance whether drilling ahead or shut in to make jointed...