Table of Contents: Page No.
1.0 Management Summary 2
2.0 Introduction 2
3.0 Regional setting and location 3 3.1 Petroleum Geology
4.0 Appraisal programme 4
4.1 Exploration history 4.2 Data procurement 4.3 Well results
5.0 Economic and commercial considerations 5.1 Licence terms 5.2 Production forecast
6.0 Conclusion
7.0 References
1.0 Introduction:
The Islamic Republic of Pakistan is a sovereign nation situated in South Asia having the expansive sedimentary basin covering more than 827,000 Sq. Km and spread over both onshore and offshore. The total evaluated reserves of Pakistan are 27 billion barrels of oil and 280 trillion cubic feet of
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The Haseeb Gas field is situated in Lower Indus Basin within the Jacobabad-Khairpur high tectonic structure. The Jacobabad-Khairpur feature was developed by domal uplifting during the Early Cretaceous and later on along deep-seated faults in the Late Cretaceous and Palaeocene. The presence of Jurassic rocks in the area show deposition during rifting. On the Jacobabad-Khairpur high, Eocene carbonates (Sui Main Limestone) are broadly distributed and form good hydrocarbon reservoirs (Intergrated Petroleum Consultants (PVT) Limited Islamabad Pakistan & GSM INC., 2007)
Petroleum Geology: Haseeb gas field structure was outlined by a seismic survey acquitted in 2004-2005. It is a well formed, gently plunging anticline oriented in an NW-SE direction. The extent of the structure is about 15 sq. km with the vertical closure of 69 m approximately shown in Figure 2. The structure is cut by the two normal faults on the Northern side having 15-20m throw.
The primary target for the Haseeb well-1 was to encounter the Eocene Sui Main Limestone which is the producing reservoir in the vicinity small and large gas fields, including the world-class Sui gas field at the depth of 1048mKB. The 746m thick Eocene shale dominated Ghazij Formation promptly above Sui Main Limestone is forming an adequate regional seal for thick carbonate reservoir. The carbonate reservoir zone demonstrates more than 20% porosity within the Haseeb gas field. The
these places, disaster could happen at any time. Ruined wells, ecosystems are destroyed natural gas seepage into the large cave systems, and destroyed land streams. All wells and sources in any gas well drilling areas should be tested by independent water testing firm at the expense of those drilling gas wells(Carns 539).
One of the major things noticeable from the cross section is that quite a few of the rock layers are over turned, where the older rock layers are above the newer rock layers. This is seen in the contact between the Quartz Monzonite of Papoose Flat and the Campito Formation which is also a disconformity. Next there is some fault zones separating the Camptio, Poleta, and Harkless formations. We then see some more overturned layers with the contacts between Saline Spring Valley Formation (lower and upper members) above the Mule Spring Formation along with some inferred folding. With a normal fault separating the inferred folding event, we see where the overturning occurs. In between the Cambrian layers we see Tertiary Basalt nonconformities also being folded, thus with that we know that the folding event was more recent than the formation of the Basalt. Next there is a large Basalt field with a spot of the Harkless formation. Again we see over tuning as the Basalt field ends there are the Devonian and Mississippian rock Layers on top of the basalt. Separating these overturned layers from the Harkless Formation and the Saline valley Formation (upper member), which are not overturned, is a thrust fault. From this information, there was a major stress event sometime after the Tertiary period causing the rock layers to fold and overturn. And from this stress event and from the folding, normal and thrust faults are formed. Finally we see that there were alluvial and landslide deposits from the Quaternary after the folding, faulting, and over
The well tested in this project is located in the city of Brighton in Weld County, CO. Well SHABLE AB11-04P which is operated by Halliburton is one of the many wells in the Wattenberg field. Wattenberg field is a low permeability (“tight”) basin center gas field (Highley 12).Based from the Colorado Oil and Gas Conservation Commission in 1999, the Wattenberg field has approximately produced 1.75 TCFG, 76.4 MMBO, and 15.7 MMBW from all of the formation above. The primary source of hydrocarbon production in the Wattenberg field comes from the Muddy (“J”) Sandstone formation which currently has 1,900 producing wells. The Wattenberg formation also has a potential biogenic gas reserves for coalbed methane (CBM) production at the Laramie formation
Based off of MICP data collected from core (Figure 19), the Pronghorn siltstone has a permeability on par with the upper and lower Bakken shales. The lack of permeability is supported by lithological analysis indicating a clay content of up to 50 % (Figure 20) across the Painted Woods asset. The low permeability and high clay content shows that the Pronghorn does have the potential to occlude primary migration of hydrocarbons from the lower Bakken shale into the underlying upper Three Forks. However, this only has a minimal effect on the overall potential of the upper Three Forks as a whole.
All of the volcanic and metasedimentary rocks are metamorphosed, whose grades are extending from greenschist to upper amphibolite, characterized by low-pressure but high-temperature (Isachsen & Bowring, 1994). The influence of basement fracture zone is reflected in the homoclinal and abruptly alternated trends of the volcanic belts, which is more frequently found in the southwestern domain of the province, while north belts show angular patterns (Fyson & Helmstaedt, 1988; Padgham,1992; Padgham & Fyson, 1992). Except for the sharp dips of the volcanics, regional-scale folds, foliations and cleavages over several successions shown in the metasedimentary rocks are studied to understand the deformation and metamorphism (Isachsen & Bowring, 1994). Fyson & Helmstaedt (1988) compare three major types of folds which are ranked by their ages and sizes from oldest, most extensive F0 to minor-sized, cleavage-foliation-associated S3 folds with intermediate type F1 between them and they suggest that the parallel trend and they suggest both foliation and folds are results of syntectonic
The South Brae oilfield is mainly Kimmeridgian to mid-Volgian in age, however on some accounts it may possibly be of Oxfordian (Turner et al, 1987). The oilfield is heavily developed along the western, fault-bounded margin of the South Viking Graben approximately 161 miles NE of Aberdeen flanking Fladen Ground Spur (see Fig.1). The Upper Jurassic rifting of the South Viking Graben encountered, pronounced movement along the western bounding fault as syn-rift extension proceeded (Harris & Fowler, 1987, Gregory et al, 2007). Syn‐tectonic deposition throughout the Jurassic ensued the formation of a distinct sediment wedge thinning eastwards into the basin, outlining the main phase of fault movement down the boundary fault (Roberts, 1991). As a result, the Brae oilfields are a series of
Oil and Gas exploration has been an ongoing project in the Raton Basin, but a quite unsuccessful one at best. The Raton Basin is primarily a flood plain paludal deposit which is not ordinarily an ideal unit to recover oil or gas from (Speer, 1976). The sandstones within the Raton are predominantly coarse grained, poorly sorted, fluvial sandstones which have been shown
Another rifting phase started in the early Jurassic around Pliensbachian or Toarcian (Chongzhi et al., 2013; Geoscience, 2014; Tindale, Newell, Keall, & Smith, 1998). Exmouth, Barrow, Dampier and Beagle Sub-basins were created until Middle Jurassic (He, 2002; Tortopoglu, 2015) and oceanic crust was laid down to form the Argo Abyssal Plain in Late Jurassic around 164-160 Ma during the Callovian to Oxfordian then followed by the Gascoyne and Cuvier Abyssal Plain in Early Cretaceous around 125 Ma (Fullerton, Sager, & Handschumacher, 1989; Müller, Mihut, & Baldwin, 1998). Passive margin was established in North West Shelf. Rifting phase of the basin transformed into sagging phase post breakup thermal subsidence when Gondwana breakup took place during Valanginian early Cretaceous around 134Ma. During the Campanian late Cretaceous, rifting along the Australian southern margin triggered the basin inversions and wrench reactivation of basin structures on NW Shelf. These movements arose the Barrow Island above sea level and formed Novara, Resolution and Exmouth Plateau Arch in Barrow, Dampier Sub-Basins and Investigator Sub-Basin (Figure 1) (Longley et al., 2002; Sinhabaedya,
The Wasco oil field produces mainly from the Oligocene Vedder Formation and Eocene sandstones within the Kreyenhagen Formation in the San Joaquin basin, California. The Vedder and Kreyenhagen sandstones in the Wasco oil field consist of fine-to coarse-grain, very poor to well sorted, angular to sub round, arkosic arenites. Porosity development in these deeply buried sandstones was significantly affected by compaction, dissolution of framework grains, and precipitation of authigenic minerals. These diagenetic processes controlled the quality of the Vedder and Kreyenhagen sandstone reservoirs.
The Kaibab Limestone is found at top elevations. Limestone is usually found on sea floors, so this to me could mean a transgression.Youngest rock layers are usally laid last and the oldest layers are laid first. This is what they call the principle of superpositioning. Because the layers of rocks are horizontal this follows the principle of original horizontality. Some of the layers on the Colorado plateau are tilted. The tilting of the rock layers created a plateau for the creation of the Colorado river. There is thought to have been some sort of geologic event happen here such as a fault. A fault happens when tectonic plates move as a transform, divergent, convergent boundaries, and either cause a strike slip, normal or reverse fault. Often when this happens there will be brittle deformation of the rocks but because there was no significant alteration of the rocks, questions still arise as to how it actually
Next drillers inject the well with extremely pressurized fluid. The fluid is a make of water, sand, and lube sent into the wellbore under high pressure. Which then initiates the adjacent rock to crack and release natural gas that has been captive underneath the earth surface. The forced mixture then creates a fairway to the well and consents the released gas to flow to the wellbore.
Napoleon is completely corrupt throughout the entire novel. He never makes a single contribution to anything but himself. He is only interested in his power over the farm and not the farm itself. The only project he is happy about is the training of the puppies and trains them for purely selfish reasons. Napoleon is specifically modeled after the dictator Joseph Stalin. However, Napoleon can more generally represent political tyrants throughout human history and more notably through the twentieth century. Even Napoleons name represents a notorious dictator in Napoleon Bonaparte. The author could have selected any other name in the English language, but he chose to use the name Napoleon. In the way that Orwell writes about this character, it is very easy to sense the bullying and lying behaviors of modern day evil dictators.
I interviewed Miss Connie McGinnis, last Thursday morning. Mrs. McGinnis is one of the math/algebra teachers at Shawnee community college. She is my Algebra teacher. I chose Mrs. McGinnis because she is a great teacher and because she is a math teacher. I thought it would be interesting to see how much she uses writing since she is a math teacher and mainly uses numbers. It turned out to be very interesting, she had great answers.
Drilled by the Transocean Leader, the 6705/10-1 well reached a vertical depth of 3,775 meters below sea. The reservoir is located in Upper Cretaceous reservoir rocks, and found gas in rocks with good reservoir properties.
Considering the above restrictions imposed by acid fracturing, its applicability is limited to special cases where no better solution is available especially in Iranian oil fields. In this paper, one of these special cases is studied occurred in a carbonate reservoir in Iran. This was the first successful acid fracturing operation in an Iranian reservoir which makes the condition so delicate and unique as there was so many uncertainties and lack of experience.