ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
Abstract A methodology was developed to determine residual saturations in a reservoir from fluid contact measurements and to forecast future contact movement. The methodology is based on the remaining volumes of fluid in the reservoir. At any given time, the remaining volumes of fluid (oil, gas, and ...
Abstract In 1991 lost time due to stuck pipe related drilling problems accounted for approximately 18% of total drilling time in Mobil Producing Nigeria Ultd.'s (MPN) offshore operations. The primary cause of stuck pipe was identified as mechanical wellbore instability. This paper presents an assessment ...
Abstract An innovative procedure was developed for an integrated reservoir simulation study for an oil field that is depleted below its oil bubble point pressure. The approach used was to complete a black-oil history match model, then convert the black-oil model to a compositional model to predict ...
Summary. Contractors and operators air drill whenever possible to improve rate of penetration (ROP). This is done with pneumatic hammer tools (HT's) and various bit types used with standard rotary air rigs. The recent application of a ""flat-bottomed"" percussion bit (FPB) combed with a custom-designed ...
Abstract Due to the punitive cost of drilling deepwater wells with 5th/ 6th generation rig rates flirting around $500,000/day, the need arose within the BP Angola Business Unit to plan a combined appraisal / development well as the first well on Platina West; a field which exists on seismic but remains ...
Summary This paper reviews implementation of a gravity-stable, miscible CO2 solvent flood in a reservoir located in the coastal marshes of south Louisiana. Key reservoir properties are presented, and field tests to determine residual oil saturation and to define reservoir limits and continuity are ...
Summary. This paper discusses testing of horizontal technology for use in the highly fractured Giddings field. Three short- and seven medium-radius wells were drilled successfully in the Austin Chalk formation. The paper discusses well plans, bottomhole assemblies, trajectory control, telemetry, mud ...
Summary The Thermal Neutron Decay Time TM (TDT) log has had wide applications throughout the world for many years. Recent improvements in equipment design, combined with the effect of the presence of trace elements in the low-salinity formation waters of California, have extended the TDT's use ...
Abstract A methodology was developed to determine residual saturations in a reservoir from fluid contact measurements and to forecast future contact movement. The methodology is based on the remaining volumes of fluid in the reservoir. At any given time, the remaining volumes of fluid (oil, gas and ...
Summary The determination of residual gas saturation in gas reservoirs from long spontaneous and forced-imbibition tests is addressed in this paper. It is customarily assumed that when a gas reservoir is overlaying an aquifer, water will imbibe into the gas-saturated zone with the onset of gas production. ...
Summary In October 2010, the deepest-set sealed multilateral (ML) junction in the industry was installed at 6900-m measured depth (MD) in Oseberg South Well 30/9-F-9 AY1/Y2. The differential pressure across the junction in the well was expected to be in the range of 250 bar. To meet this pressure requirement, ...
Summary Emulsified acids were traditionally used in acid fracturing, and more recently on matrix treatments of carbonate formations. The delayed nature of emulsified acids is useful in generating longer etched fractures or deeper wormholes. Emulsified acids also have higher viscosities than straight ...
Summary A pseudocomponent method was developed to use fully compositional reservoirsimulation results in the interpretation of separator gas samples. Thisinterpretation provided insight into actual EOR performance by quantifyingsolvent breakthrough and production rates. Field examples of various reservoirmechanisms ...
Abstract The paper deals with a case study of a high rate sour gas field in Pakistan. The paradigm shift from sand control to sand management boosted production rates by more than 100%. At the same time higher well head pressures and lesser drawdowns will extend field life and ultimate recovery. Major ...
Summary Aluminum drillpipe was used to drill the first five directional wells from aNorth Sea platform. A comparison with steel drillpipe showed that theoperational problems of using the aluminum drillpipe outweighed the benefits inthe directional wells drilled. Therefore, steel drillpipe was specified ...
Abstract This paper presents the first installation of nozzle-based passive inflow control devices (ICD) for Apache Corporation in Australasia. This recent technology was simultaneously applied in a production well and a water injection well, and served as a demonstration of its potential benefits ...
Summary Two wells extending more than 2 miles were drilled from Platform Irene in the Pt. Pedernales field, offshore California. These wells are the two longest extended-reach wells on the U.S. west coast. Although several wells around the world have been drilled beyond two miles, none extend at such ...
Summary This paper deals with a case study of a high-rate sour-gas field in Pakistan. The paradigm shift from sand control to sand management boosted production rates by more than 100%. At the same time, higher wellhead pressures and less drawdown will extend field life and ultimate recovery. Major ...
Abstract Since the turn of the millennium, non-retrievable drilling with casing technology has been introduced to the Asia Pacific region. Soft formations encountered in offshore drilling environments have promoted the successful application of casing drilling technology for conductor and surface casing ...
Abstract The modern Ultra Extended Reach Drilling projects become more and more challenging. Some of the lately drilled ERD's probably reached or came close to the edge of available drilling technology. The most breathtaking well was Maersk BD-04A completed by May 2008 offshore Qatar with 12 290 ...