ULTIMO AGGIORNAMENTO BANCA DATI: 07/11/2025 14:33:35
Abstract We analyzed moose tissue samples for extractable petroleum hydrocarbons (EPH), heavy metals and polycyclic hydrocarbons (PAH) and compared levels of concentration in tissues between two areas with noticeably different levels of oil and gas activity. Our treatment area (extensive oil and gas ...
Summary A drilling or a fishing jar is used in the bottomhole assembly (BHA) of a drillstring to free the string should it become stuck during the drilling operation. Because many expensive sensors are now incorporated in downhole tools, it is necessary to predict the damaging effect of jarring on ...
Abstract The onshore Seria oil field, located in Brunei and operated by Brunei Shell Petroleum Co. (BSP), was discovered in 1929 and has produced over 1.1 billion barrels of oil. The field still has a large Near Field Exploration (NFE) portfolio of undeveloped hydrocarbon resources in reservoir blocks ...
Summary ConocoPhillips is developing the Magnolia field with a tension leg platform (TLP) in 4,674 ft of water at Garden Banks Block 783 in the Gulf of Mexico. The wells produce primarily from thick, fine-grained, Pleistocene reservoirs. Because of the long lengths of the producing reservoirs and large ...
Summary. This paper deals with the planning, special equipment considerations, and operations necessary to convert 165 water injection wells to CO2 injectors that will function through at least the end of the century. The paper is divided into two parts: planning and engineering (wellhead, packer, and ...
Summary Today's high operating costs demand a critical and thorough review of workover procedures and equipment. High-pressure gas leaks in both wellhead and tubing connections prompted an extensive workover program in the Arun field, North Sumatra. Mobil Oil Indonesia (MOI), contractor to Pertamina, ...
Summary Laboratory and field research have developed better drilling and fracturig fluids for extremely water-sensitive gas-producing formations in western Canada. Other improved techniques include perforating in dry hole, stage fracturing using baffles and balls, higher rates, higher sand concentrations, ...
Summary Culture-based methods of traditional microbiology applied to the microbiological processes involved in souring of oil fields and microbiologically influenced corrosion (MIC) pose a risk of yielding inadequate and contradictory results. Any cultivation step will almost certainly alter the population ...
Abstract In order to obtain the necessary Federal Government environmental clearance for exploration drilling in the Southern Davis Strait area the primary permit holders of this offshore region have in consultation with the Department of Indian and Northern Affairs undertaken a substantial environmental ...
Abstract An underground blowout occurs when formation fluids flow from one subsurface zone to another in an uncontrolled manner. The results range from being indiscernible to catastrophic. An underground blowout can result in minor transfers of fluids that may never be identified or in flow which reaches ...
Summary Three drillstring fatigue failures occurred while drilling two deep wells below 16,500 ft true-vertical depth (TVD) in the US midcontinent region. All the failures occurred across 2°/100 ft- to 3°/100 ft-dogleg severity (DLS) intervals from 6,000 to 8,000 ft. The well conditions (i.e., pipe ...
Abstract It is imperative that a completed well be adequately equipped to fully control the flow of any fluid from the well at all times. Regardless of the nature, size or type of equipment that an operator may be running in or out of the wellbore, the procedure must assure that the wellhead, blowout ...
Summary On Aug. 25, 1980, without warning, a large oil slick in vaded the north and west coasts of Bahrain (Fig. 1). This serious incident was designated a national emergency, and a special high-level government committee was established immediately to handle the response procedure. This paper describes ...
Summary Besides small amounts of suspended oil, oilfield produced water after conventional treatment can contain dissolved organic and ammonium compounds that may preclude its discharge into the ocean because of environmental protection regulations. Two field pilot studies in southern California established ...
Abstract Probably the greatest limitation of the Hot Water Extraction Process (H.W.E.P.) is that it results in the unavoidable formation of huge sludge ponds. Despite many attempts, no technology for ""dry"" tailings production has been commercialized. Several experimental methods of dewatering oilsands ...
Distinguished Author Series articles are general, descriptiverepresentations that summarize the state of the art in an area of technology bydescribing recent developments for readers who are not specialists in thetopics discussed. Written by individuals recognized as experts in the area,these articles ...
Summary Jarring implies heavy loads on the drillstring. The highest load on the drillpipe before jarring is at the rig floor. This paper discusses loads on drillpipe before, under, and after jarring. We show that for most situations, the shock wave from the jar impact does not imply additional load ...
Summary Amoco Production Co. has operated electric submersible pumps (ESP's) in 4 3/4 -in. (12.1-cm) open holes in the Grayburg formation of its Midland Farms Unit, Andrews Dist., since 1977. The Midland Farms (Grayburg) reservoir is a low-pressure [400- to 600-psi (2.8- to 4.1 -MPa) static bottomhole ...
Summary Well control can be an unpleasant experience. In its initial stages the problem often appears unconquerable and weeks can pass without progress. This paper is about the successful abandonment of such an episode of well control, in deepwater (i.e. greater than 300 m water depth), that was initially ...
Summary The work presented in this paper is part of a larger research project which is aimed at finding solutions to problems associated with liquid loading, erosion at pipe bends caused by sand particles, and phase separation. The work uses computational fluid dynamics (CFD) to design solutions that ...