Microfacies and Digenesis Processes of Yamama Formation in West Qurna oilfield, South of Iraq: السحنات الدقيقة والعمليات التحويرية لتكوين اليمامة في حقل غربي القرنة النفطي في جنوب العراق

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Mona Anad Abd
Keyword(s):  
Thin Section ◽  
Microscopic Examination ◽  
Sedimentary Environment ◽  
Oil Wells ◽  
Oil Reservoir ◽  
Variable Environment ◽  
Shallow Lagoon ◽  
South Of Iraq ◽  
Lower Limits ◽  
Southern Iraq

Yamamma Formation is considered as the second biggest oil reservoir in southern Iraq. In this study the data was collected from seven oil wells in West Qurna oilfield (WQ- 12، WQ- 14، WQ- 15، WQ- 60، WQ- 115، WQ- 148، WQ- 215)، these wells are distributed on the crest and the flanks of the structure، and 240 thin section slides were prepared and examined after setting up the upper and lower limits of Yamamma Formation، results of the microscopic examination indicated that there are six facies represent the sedimentary environment of Yamamma Formation that formed in the variable environment such as shallow lagoon، shoal and fore- slope. Microscopic examination also showed that the formation was affected by many diagenesis processes، mostly cementation associated with dissolution other important diagenesis are micritization، compaction and dolomitization that affected the porosity system of Yamamma Formation and led to development or degradation of porosity in different ratios vertically and laterally.

scholarly journals Study and evaluation the Marshes and surrounding areas in south of Iraq

2020 ◽  
Vol 150 ◽  
pp. 03011
Author(s):  
Husam Al-Nussairi ◽  
Khalida Hassan
Keyword(s):  
Land Degradation ◽  
Agricultural Production ◽  
Drainage Water ◽  
Soil Productivity ◽  
Hydrochemical Characteristics ◽  
Drainage Systems ◽  
Tigris River ◽  
South Of Iraq ◽  
Surrounding Areas ◽  
Southern Iraq

In this study, the marshlands in southern Iraq were investigated, focusing on the Hawizeh Marshlands and adjacent areas, by studying the scenario and quantities of water, in addition to the hydraulic and hydrochemical characteristics. To accomplish the objects of this study the researcher visited some fields, made interview with farmers, specialists, authorities and directorates related to this study. The results of this study indicate that there are a huge problem existed in the drainage systems with absence of natural outlets, the discharges of drainage water is towards Al- Hawizeh marsh which flow back its water into Tigris river through several canals, increasing salinity, scare of water, miss-use of land, lack of governments efforts to promote agricultural production leads to loss of soil productivity and land degradation.

scholarly journals Stratigraphy and Depositional Environment of Mauddud Formation in Ratawi Oil wells of Southern Iraq

2021 ◽  
Vol 877 (1) ◽  
pp. 012030
Author(s):  
Maha Razaq Manhi ◽  
Hamid Ali Ahmed Alsultani
Keyword(s):  
Deep Sea ◽  
Lower Cretaceous ◽  
Depositional Environment ◽  
Carbonate Platform ◽  
Depositional Environments ◽  
Oil Wells ◽  
Oil Field ◽  
Microfacies Analysis ◽  
Thin Sections ◽  
Southern Iraq

Abstract The Mauddud Formation is Iraq’s most significant and widely distributed Lower Cretaceous formation. This Formation has been investigated at a well-23 and a well-6 within Ratawi oil field southern Iraq. In this work, 75 thin sections were produced and examined. The Mauddud Formation was deposited in a variety of environments within the carbonate platform. According to microfacies analysis studying of the Mauddud Formation contains of twelve microfacies, this microfacies Mudstone to wackestone microfacies, bioclastic mudstone to wackestone microfacies, Miliolids wackestone microfacies,Orbitolina wackestone microfacies, Bioclastic wackestone microfacies, Orbitolina packstone microfacies, Peloidal packstone microfacies, Bioclastic packstone microfacies, Peloidal to Bioclastic packstone microfacies, Bioclastic grainstone microfacies, Peloidal grainstone microfacies, Rudstone microfacies. Deep sea, Shallow open marine, Restricted, Rudist Biostrome, Mid – Ramp, and Shoals are the six depositional environments in the Mauddud Formation based on these microfacies.

scholarly journals An Integrated Microfacies and Well Logs-Based Reservoir Characterization of Yamama Formation, Southern Iraq

2021 ◽  
pp. 3570-3586
Author(s):  
Mohanad M. Al-Ghuribawi ◽  
Rasha F. Faisal
Keyword(s):  
Reservoir Characterization ◽  
Water Saturation ◽  
Effective Porosity ◽  
Well Logs ◽  
Petrophysical Properties ◽  
Reservoir Properties ◽  
Thin Sections ◽  
Porosity And Permeability ◽  
South Of Iraq ◽  
Southern Iraq

     The Yamama Formation includes important carbonates reservoir that belongs to the Lower Cretaceous sequence in Southern Iraq. This study covers two oil fields (Sindbad and Siba) that are distributed Southeastern Basrah Governorate, South of Iraq. Yamama reservoir units were determined based on the study of cores, well logs, and petrographic examination of thin sections that required a detailed integration of geological data and petrophysical properties. These parameters were integrated in order to divide the Yamama Formation into six reservoir units (YA0, YA1, YA2, YB1, YB2 and YC), located between five cap rock units. The best facies association and petrophysical properties were found in the shoal environment, where the most common porosity types were the primary (interparticle) and secondary (moldic and vugs) . The main diagenetic process that occurred in YA0, YA2, and YB1 is cementation, which led to the filling of pore spaces by cement and subsequently decreased the reservoir quality (porosity and permeability). Based on the results of the final digital  computer interpretation and processing (CPI) performed by using the Techlog software, the units YA1 and YB2 have the best reservoir properties. The unit YB2 is characterized by a good effective porosity average, low water saturation, good permeability, and large thickness that distinguish it from other reservoir units.

scholarly journals Structural Study of Faihaa Oil Field in Basra South of Iraq

2021 ◽  
Vol 54 (2F) ◽  
pp. 62-73
Author(s):  
Hiba Kareem ◽  
Manal Al-Kubaisi ◽  
Ghazi Hasan Alshar'a
Keyword(s):  
Oil Field ◽  
Hinge Line ◽  
North West ◽  
Contour Maps ◽  
Length Width ◽  
Eastern Limb ◽  
The Difference ◽  
South Of Iraq ◽  
Southern Iraq ◽  
Western Limb

This study used structural contour maps to carry out the geometrical analysis for Faihaa structure in Basra southern Iraq. The study used row data of well logs and structural maps while Softwares were Didger 4, Stereonet v.11 and Petrel 2017 Faihaa Oil Field is located at an eastern part of the Mesopotamian Zone within the Zubair Subzone, characterized by subsurface geological structures covered by Quaternary sediments. These structures are oriented in the NW-SE direction in the eastern part of the band and the N-S direction in the southern region, and some in the direction NE-SW. The Faihaa Oil Field shows that is an Anticline structure. The average dip value of an axial surface is 89.7° while the plunge of hinge line between 4–4.2 in North-West direction referred to that Faihaa Structure is upright and gentle fold. Based on the Thickness ratio and axial angle, the Faihaa Structure is thickened Fold. The eastern limb of the fold is longer than the western limb, so Faihaa Oil Field is an asymmetrical structure. The difference in dimensions (5<Length / Width < 2) confirmed the brachy fold of the Faihaa structure.

scholarly journals New records of planktonic foraminifera in the Shuaiba Formation (Aptian Age), Mesopotamian plain, South of Iraq

2019 ◽  
pp. 1322-1335
Author(s):  
Zain Alabdeen A. Al-Shawi ◽  
Maher M. Mahdi ◽  
Abbas H. Mohammed
Keyword(s):  
New Records ◽  
Planktonic Foraminifera ◽  
Oil Fields ◽  
The Other ◽  
Arabian Plate ◽  
History Of ◽  
South Of Iraq ◽  
The Many ◽  
First Time ◽  
Southern Iraq

Shuaiba Formation is an important formation in Iraq, because of their deposition in the important period during the geological history of Arabian plate. The study is focused on a number of selected wells from several fields in southern Iraq, despite the many of oil studies to Shuaiba Formation but it lacks to paleontological studies. Four selected wells are chosen for the current study, Zb-290, Ru-358, R-624, WQ1-353, the selected wells are located within different fields, these are Zubair, Rumaila and West Qurna Oil Fields. In this study fourteen species followed to genus Hedbergella were discovered for first time as well as three genera followed to genus Heterohelix in the Shuaiba Formation at the different oil fields, Hedbergella tunisiensis Range Zone is suggested biozone to the current study, the age of this biozone is Aptian, most of the other genera located within this zone.

scholarly journals Measurement and Analysis of Natural Radioactive Elements in Salty Sediments from Central and Southern Iraq

2021 ◽  
pp. 3911-3920
Author(s):  
Mahdi Hadi Jasim ◽  
Afrah Essa Ramadan ◽  
Nessrian Ali Hussain
Keyword(s):  
Structural Characteristics ◽  
Radiation Hazard ◽  
Radioactive Elements ◽  
X Ray Diffraction ◽  
Radioactive Materials ◽  
Dose Rates ◽  
Naturally Occurring ◽  
Measurement And Analysis ◽  
South Of Iraq ◽  
Southern Iraq

Purification of fifteen NaCl samples from natural and different area in the middle and south of Iraq are prepared  and studied the structural characteristics of samples by powder X-ray diffraction analysis at 𝛌=1.542Ã…. The present work considered the specific activities of naturally occurring radioactive materials in salt samples, which are measured and analyzed using high resolution HPGe system. Also, the radiological parameters have been considered in this work. The average specific concentration (in Bq.kg-1) of the salt samples is found 16.864.92 for 226Ra, 5.972.05 for 232Th and 9.852.8 for 40K, respectively, which are below the national levels, 40Bq.kg-1, 30Bq.kg-1 and 400Bq.kg-1, respectively (UNSCEAR, 2000). Similarly the absorb dose rates are in the range3.71 nGy.h-1 to 12.591nGy.h-1.The measured radiation hazard indices show that the concentrations of these radionuclides in all samples are within the allowable limits.

Distribution of different forms of phosphorus in calcareous soils from middle and south of Iraq

2020 ◽  
Vol 10 (1) ◽  
pp. 293-303
Author(s):  
Makttoof E.A. ◽  
Kassim J.K. ◽  
Khuzale K.H
Keyword(s):  
Total Phosphorus ◽  
Organic Phosphorus ◽  
Calcareous Soils ◽  
Extraction Methods ◽  
Available Phosphorus ◽  
Extraction Technology ◽  
Aluminum Oxides ◽  
Successive Extraction ◽  
South Of Iraq ◽  
Southern Iraq

A survey of the chemical way to determine the amount of different phosphorus forms in calcareous soils was carried out on 22 calcareous soils fertilized for many years with phosphate fertilizers from central and southern Iraq. Extraction methods were developed by combining the technique of individual traditional methods of different forms with sequentially extraction technology. Soil samples were collected from surface (0-30 cm) and subsurface (30-60 cm) horizons. Forms of soluble, ready available, organic and total phosphorus were extracted independently and in addition to the successive extraction were carried out according to Jiang and Gu (1989) method. The amount of soluble and available phosphorus extracted were low and ranged from 0.17 to 2.12 mg kg-1 and 7.28 and 34.3 mg kg-1 respectively. Organic phosphorus was medium and the values ranged 30.9 and 93.1 mg kg-1 while the total phosphorus content was high and the values ranged between 206.9 and 570.6 mg kg-1. The quantities of phosphorus extracted sequentially by chemical extracts and the possibility of diagnosing different forms of phosphorus associated with calcium Ca2-P, Ca8-P and Ca10-P (apatite) in addition to P associated with OM and free iron and aluminum oxides. The average values of Ca2-P, Ca8-P, Fe-P and occluded (O-P) extracted were nearly similar and the values were 20.47, 25.28, 25.4, and 26.23 mg kg-1 respectively while the Ca10-P was much higher (194.54 mg kg-1) than the other forms.

scholarly journals Evaluation of water demand and supply in the south of Iraq

2015 ◽  
Vol 6 (1) ◽  
pp. 214-226 ◽  
Author(s):  
M. H. O. Al-Furaiji ◽  
U. F. A. Karim ◽  
D. C. M. Augustijn ◽  
B. I. H. Waisi ◽  
S. J. M. H. Hulscher
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Water Shortage ◽  
Water Shortages ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Annual Water ◽  
South Of Iraq ◽  
Total Water Demand ◽  
Southern Iraq

This paper presents results from the first study that focuses on water resources availability and demand for different purposes in the four oil-rich provinces of southern Iraq. The region accounts for 23% of the surface area and 18% of the country's population, but holds 88% of its oil. A water shortage of 430 Mm3/year for 2010 is estimated for this region where irrigation accounts for 81% of the total water demand. Dhi Qar is the largest agricultural producer and water consumer while Al Basrah and Al Muthanna have the largest water shortages among the four provinces. The interrelationship of energy–water production and utilization is discussed and the annual water balance for irrigation, industrial, domestic and livestock usage in the different provinces determined. On this basis recommendations are made for treating and utilizing the steadily increasing amounts of water produced from the oilfields to supplement the other sustainable water resources in that region.

scholarly journals A study of the physical and chemical characteristics of the waters of the central marshes in southern Iraq after restoration

2014 ◽  
Vol 11 (2) ◽  
pp. 991-998
Author(s):  
Baghdad Science Journal
Keyword(s):  
Dissolved Oxygen ◽  
Fresh Water ◽  
Water Samples ◽  
Total Alkalinity ◽  
Chemical Characteristics ◽  
The South ◽  
Physical And Chemical Characteristics ◽  
South Of Iraq ◽  
Physical And Chemical ◽  
Southern Iraq

some ecological (physical and chemical varible) of water samples were studies monthly from December 2008 to May 2009 at two stations( St.1) Al - Chibayesh marsh and (St.2) Abu – Zirik marsh which are located in the south of Iraq . These variables included : Temperature, pH, EC, Dissolved oxygen , Total alkalinity, Nitrate, Sulphate, and phosphate, Si-SiO2 and Ca ,Mg, Cl, The marsh Considered as fresh water and alkaline. Abu-Zirik less than Al-Chibayesh.

Sign in / Sign up

Export Citation Format

Share Document