ULTIMO AGGIORNAMENTO BANCA DATI: 07/11/2025 14:33:35
Abstract The paper discusses the design. The field operations of drilling and completing a high productivity horizontal well in the Sirte basin of North Africa. as well as the productive results obtained. In Oct. - Nov. 1994. the Arabian Gulf Company (AGOCO) drilled, tested and put into production ...
Summary Matrix acidizing is used in carbonate formations to create wormholes that connect the formation to the wellbore. Hydrochloric acid (HCl), organic acids, or mixtures of these acids are typically used in matrix-acidizing treatments of carbonate reservoirs. However, the use of these acids in deep ...
Abstract Amoco et al. Steep A7-28-66-7W6M was drilled as a directional well to 2395 m M.D. to intersect Amoco et al. Steep 7-28-66-7W6M which had blown out. The replacement well was to be used to perform a bottomhole-kill operation and then subsequently converted to a producing well. As the precise ...
Abstract A joint study integrating geological and engineering data was undertaken to locate infill wells and to optimize the injection pattern in Hayat-Yasser, Kenz and Salam fields in the western desert of Egypt. The focus of this work was the Cretaceous Bahariya and Abu Roash “G� formations which ...
Abstract The East Bodo, Lloydminster SS heavy oil pool, has been exploited using primary recovery and waterflood. IOR screening showed that a polymer flood would be a preferred IOR technique. Subsequent coreflood tests indicated that the polymer flood could recover 20% OOIP incremental oil, after waterflooding ...
Abstract The East Bodo, Lloydminster SS heavy oil pool has been exploited using primary recovery and waterflood. IOR screening showed that a polymer flood would be a preferred IOR technique. Subsequent coreflood tests indicated that the polymer flood could recover 20% OOIP incremental oil, after waterflooding, ...
Summary This paper shows that the water-alternating-gas (WAG) process may improvesweep efficiency and gas-condensate recovery process may improve sweepefficiency and gas-condensate recovery compared with continuous cycling inhighly stratified reservoirs. The study used extensive numerical simulation ...
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 ...