... Abstract Drilling deep gas wells poses a set of significant technical challenges, many of which approach or push the boundaries of equipment operational limits. The need for formation evaluation data in the deep gas reservoirs can be explained by the fact that relatively little is known about...

... design drilling fluid property reservoir hole section drilling fluid property drilling fluid management & disposal polymer drilling fluid differential drilling fluids and materials drilling fluid drilling fluid selection and formulation hp ht formation displacement hole section drilling...

... alteration. The proposed calibration of the mercury data on tight sands is then considered for tight gas carbonate reservoirs. reservoir equation vapor desorption method rock sample chilingarian capillary pressure drainage resistivity index measurement tight gas sand porous plate method...

... Abstract A successful case of proppant fracturing on an ultra-high pressure (Pressure gradient 0.018MPa/m), deep (5725-5783m) sandstone gas reservoir in Western China is described in this paper. Several technologies including high density(density1.12g/cm 3 ) frac-fluid, high density(density...

...-12000 255-290 2-6% 0.01-50 Challenges Drilling, completion and testing in deep reservoirs have always been a challenge and it will be more agrassive when handling exploratory wells as the uncertainty prevail in all phases of operations. Challenges in testing & completion of Jurassic...

... Abstract The SongLiao basin, in north-eastern China, is one of the largest oil and gas basins in China. The volcanic Reservoir underlying the conventional oil bearing and sedimentary reservoirs of SongLiao basin is proven to be huge gas-bearing reservoirs. One deep gas-bearing volcanic...

... The first step is to recognize the susceptible reservoir to severe APT. If the reservoir is not suspected to APT, operation can be performed without concerning about the severe formation damage caused by APT. If the reservoir is known to be susceptible to severe APT, next step will be evaluating...

... Abstract Developing and producing a deep gas asset is a challenge because the reservoir is often of low permeability, commonly referred to as tight gas. In some cases, the wells are drilled under-balanced to prevent damaging the reservoir. Very often, it is necessary to drill through weak...

... and gas fields for enhancing access to the producing reservoir to drive the economic extraction of additional reserves. lateral section saudi arabia drilling assembly current ubctd project application spe generation technology directional drilling assembly drilling operation reservoir...

... Abstract Understanding fracture corridors is the primary driver for successful development of fractured carbonate reservoirs. This assumes further significance if the carbonate reservoir is characterized by very low porosity and permeability; producibility of the reservoir is purely dependent...

... from existing Artificial Island with a minimum impact to the environment. Geological and reservoir simulation compositional models have been prepared to optimize the development plan, identify the minimum number of wells, target rates in order to maximize the gas recovery and sustain the gas plateau...

... used in more than 30 deep gas projects (amounting to at least 140 wells) by major oil companies such as Total, Statoil, BP and Saudi Aramco. These developments have included the deepest reservoir in the North Sea and the largest HPHT gas field in the world. This paper collates and categorises all...

... Abstract Integration of conventional logs, core and 3-D seismic with borehole images provide a reliable and decent approach to geological modeling in tight clastics deep gas reservoirs in Oman. The Studied field is of Cambrian-Ordovician age. The field structure is North-South elongated domal...

... faced include drilling with high overbalance mud weight across the reservoir and high abbresivity of the formation rocks resulting in difficulty identifying potential gas bearing sands and slow drilling rate respectively. As a part of the referenced exploratory activity in the 3 rd quarter of 2008...

... related with non-associated gas fields in different areas of Saudi Arabia. Several oil companies are focused in explore, and produce in case of success exploration campaign, from high pressure, high temperature and deep gas reservoirs. The grade of reservoir properties anisotropy including the high...

... Abstract The traditional methods for fluid contacts determination in deep seated tight gas reservoirs are very difficult. This is a result of the down hole environment toughness and the complex nature of the rock. In addition to that, most of the tight gas reservoirs have either no, or poorly...

... characteristic of the reservoir, the tight shaly sand formation will not produce at its best potential without the high pressure proppant frac. The selection of the fluid suitable for this job was mainly to have to best properties and stable fluid to carry the proppant, not damaging to the formation...

... Abstract Occurrences of deep gas are commonly found in clastic reservoir rocks. The great depths of these reservoir rocks often result in rocks with low porosity and poor permeability. In order for these reservoirs to be productive, natural fracture systems or induced fractures from stimulation...

... design ringhisen cement system reservoir directional drilling zonal isolation cement design completion efficiency Introduction The evolution of completion techniques has made tight-gas formations an attractive source to supply global energy demands. Tight-gas production will continue...

... Abstract Bahrain Island is surface expression of a large anticline at depth - the Awali Field. It is one of the oldest producing fields, since 1932, in Middle East. Known producing reservoirs are in Cretaceous and Jurassic. In 1980s, E & P companies in Middle East started looking further...