ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
Abstract Maintaining an effective caprock seal is of prime importance in any enhanced oil recovery (EOR) stimulation involving subsurface injection of fluid. Hydraulic or mechanical breaching of the caprock may entail leakage of injected fluids and/or hydrocarbons into shallower formations, or even ...
SPE Member Abstract The increased impetus on economic efficiency and safety in oil and gas service operations has challenged the industry to seek newer and better strategies that are able to comply with current operational needs. In response to these challenges, state-of-the-art hydraulic workover ...
During a gas kick in a Wyoming wildcat well, blowout prevention procedures were complicated by equipment failure and the presence of H2S. This paper describes the use of a specially prepared magnetic iron oxide to remove the H2S chemically from drilling fluids. This mud treatment protected the drillpipe ...
Abstract Hydraulic fracturing has become an increasingly important completion method to allow reservoirs to become economically producible and to improve the rate of hydrocarbon production. Crosslinked polymer fluids have been the most commonly used fracturing fluid. These fluids exhibit exceptional ...
Abstract A number of commercially available polymers have been tested for enhanced oil recovery based upon viscosity, filterability, and surfactant compatibility, and chemical and thermal stability testing has been carried out with some of these as well. Several high molecular weight polymers exhibited ...
Abstract The Unayzah is a Lower Permian, hard and abrasive sandstone formation, interbedded with shale layers encountered at about 13,000 ft throughout most of Saudi Arabia. The Unayzah reservoirs hold substantial sweet gas and condensate reserves, which serve as important feedstock for Saudi Arabia's ...
Abstract Tight oil and gas reservoirs often require stimulation in order to make economic exploitation possible. Tailored pulse loading, usually by possible. Tailored pulse loading, usually by downhole use of propellants or explosives, has been studied as a means of improving production in these reservoirs. ...
Abstract A high pH buffer-regulated acetic acid hydrofluoric acid system was used to stimulate the Norphlet sand in the Cox Well No. 5, Piney Woods, Mississippi (BHP = 18,500 psi; BHT >365 deg. F; sour gas). An HF-acid treatment was indicated when a possible cause of low productivity was detected ...
Abstract Air and water permeabilities of a large number of samples from the Pittsburghand Pocahontas coals were measured at various overburden and mean flowpressures. A wide variation ( 0.0 1 to > 100 md) in the air and waterpermeabilities was obtained for each type of coal, and flow was primarilythrough ...
Abstract Equipment and methods for locating the points of entry of salt water into oilwells are described. These techniques make it possible to delineate accuratelythe top and bottom boundaries of water zones whether bottom water orintermediate zones of production. Data are given on tests by this survey ...
Abstract Evaluating high-pressure high-temperature (HP/HT) wells has become increasingly challenging. As the wellbore temperatures exceed the continuous operating specification of available sensors and electronic components, standard deployment and data acquisition methods are no longer sufficient. ...
Abstract Water production can reduce or block oil and gas production rates. In addition, the lifting, handling, and disposal of produced water negatively impact the hydrocarbon production economics. Among several techniques for water control, crosslinked polymer systems are the most effective for certain ...
Abstract In order to drain some very distant reservoirs from a small fixed platform in Campos Basin, called PCP-1, a horizontal well with wet completion was projected. In spite of the forecasted high productivity well, this project was considered economically unviable due to the need of frequent interventions ...
Abstract A joint study integrating geological and engineering data was undertaken tolocate infill wells and to optimize the injection pattern in Hayat-Yasser, Kenzand Salam fields in the western desert of Egypt. The focus of this work was theCretaceous Bahariya and Abu Roash ""G"" formations which ...
Abstract In Nigeria, the Niger Delta is on fire, angry communities confrontinggovernment and oil industry. Firefighting has included military suppression andthrowing money at problems, both counter-productive. Akassa has a different,grass-roots approach: interactive participatory development that iscommunity-led, ...
Abstract In heterogeneous stratified reservoirs with low vertical communication between the layers, the best results are normally achieved if the separate layers are produced with a separate set of Wells. However, in a commingled production with poor vertical sweep due to high permeable thief zones, ...
Abstract Several wells in the Statfjord field are restricted from producing at their maximum production potential due to sand production. To optimise production and reservoir drainage, different sand control techniques have been used ranging from conventional cased hole gravel packs to through tubing ...
SPE Members Abstract A new polymer, previously evaluated in the laboratory, has been successfully tested to shut off water production in two offshore high temperature gravel packed wells in the Gulf Coast. The polymer is shear resistant, thus easy to handle, and, since it maintains good permeability ...
Grace, R.D., Grace, Shursen, Moore & Assocs. Inc. IADC and SPE Member Abstract The underground blowout can be the most difficult, dangerous, and destructive situation in well control. If the blowout is shallow, cratering can result and endanger the lives of all involved. The underground blowout is ...
Abstract Combining measurement, simulation, and imaging technologies into an integrated program can help operators achieve the best hydraulic fracture treatment possible. Hydrocarbon production can be significantly increased when fractures are extended to the planned length, and fracturing fluid is ...