Messaoud Hacini

• Professor
• Managing Director at University of Ouargla

This study examines the distribution of pore pressure (PP) and fracture gradient (FG) within intervals of lost circulation encountered during drilling operations in the Ordovician reservoir (IV-3 unit) of the Tin Fouye Tabankort (TFT) field, located in the Illizi Basin, Algeria. The research further aims to determine an optimized drilling mud weigh...

Salt lakes in arid regions are important environments for mineral resource exploration, Chott Melrhir, one of the largest salt lakes in northeastern Algerian Sahara was studied with a band rationing technique applied to the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) scenes covering the northern part of the lake in the su...

Chotts are regarded as dynamic environments, in which the water and meteorological conditions exert a significant influence on their surface mineralogy and geochemistry. It is established that gypsum is sensitive to temperature fluctuations, and its dehydration can result in the formation of bassanite and anhydrite. In our arid study area “Chott Me...

The Algerian north oriental Sahara Cenozoic deposits contain an abundant microfossil, used as a key tool to interpret the paleoenvironment. The present study focused on the Late Pliocene lacustrine deposits from the section of the Chott Beghedad. The succession consists of sand and clayey-gypsum alternation, and it offers an opportunity to inv...

The inland natural brine of Algerian chotts is known to contain considerable quantities of oceanic salts; hence, it becomes vital to estimate their mining and economic potential viability. This was done by carrying out an integrated geochemical simulation approach. It has been investigated how density and ionic composition change during isothermal...

Hassi Messaoud oil field is one of the most important fields in Algeria and the world, because it covers an important quantity of total Crude Oil Production in Algeria. Furthermore, two-thirds of this oil field is underexplored or not explored. Therefore, the drilling process of petroleum wells in this field is a continuous process that results in...

In Berkine Basin, the Siegenian stage is constituted by clayey sandstones and it contains several reservoir levels especially in the perimeter of Zemlet El Arbi, where the sandstone levels can reach 30 m of thickness. The Siegenian reservoir shows a tidal deposit environment, it is located at depths greater than 3200 m, its average thickness is 200...

Salt pan brines in desert areas are globally known to be rich sources of lithium. This study reports the results of a regional survey of brine chemistry in chotts (salt pans) conducted along a 550 km long valley in the northeast Algerian Sahara, one of the major desert areas on Earth. A dataset composed of 50 samples, including brine, river, and aq...

Chott Ain Beida is an inland sabkha located in southern Algeria. Close to Ouargla city, it is surrounded by an exploited palm groove. In this study, modern climate of Ouargla region updated, surficial geology determined and geochemistry of its brines studied relative to geogenic factors and anthropogenic stress. Mean temperature increased by 2 °C,...

The water quality used for irrigation must be of a certain chemical concentration. The water quality used for agriculture can affects crops and soils, if it has Hight salinity. To assess the water quality, water of phreatic aquifer was sampled and analysed. The result obtained showed; for the hydrochemistry, the water type was classified as Na-SO4,...

Since 2000, the era of dedicated satellite gravity missions such as CHAMP, GRACE and GOCE has revolutionized our knowledge on the Earth’s gravity field and its changes in time. They will be mapping the Earth’s gravity field with significantly increasing accuracy and spatial resolution. Several new Global Earth Gravity Models were released. These le...

The study area is located in Chott Baghdad (northern the Hedjira village) from the Wilaya of Ouargla, in the northeastern Algerian Sahara. The succession shows at the bottom an alternating of gypsiferous clay-sandstone layers, demonstrating some hydrodynamic sedimentary structures such across stratifications, escape structures, and continental trac...

The exploitation of field naturally, leads to decrease the productivity of wells, to continue this exploitation with the best conditions, it is essential to pass to the stage of secondary recovery. The injection of water in reservoir is the most used method in the recovery of oil; unfortunately, there is an incompatibility between the injection wat...

In Hassi Messaoud’s oil industry, the systems which are water based (WBM) are generally used for drilling in the first phase. For the rest of the well, the oil mud systems are employed (OBM). In the field of oil exploration, panoply of chemical products is employed in the drilling fluid formulation. These components of different natures and whose t...

Chott Baghdad is an inland saline lake of the type Na-(Mg)-CI-(SO4). It is situated in septontrional Algerian sahara basin (northern of Africa).these small depression is fall dawn about 31m below sea level. One of characteristic of this zone is dry climate in summer when temperature reach 45°C and decrease in winter 5 °C. Chott Baghdad irrigate wit...

The subject of this study, Chott Ain Beida, is close to Ouargla city and surrounded by a vast palm plantation (Fig. 1). In the 70s, it was temporarily a solar evaporation pond of the Algerian Society of Salts (ENASEL). Since 2000s, it has been crossed by an artificial drainage network (Fig. 2), made up to evacuate the water surplus resulting from g...

The study area is part of the Saharan regions of the Arab world characterized by a hyperarid climate with a precipitation not exceeding 100 mm/year and temperatures that wait 45° in summer. Despite these difficult natural conduits, these regions.

The experimental investigation is a part of a wider research programme, addressed to valorisate the content of chott brine in south-est Algeria, by using multi disciplinary methods. This first paper reports on the analyses of paleo-lake deposits in Coastal outcrop of chott Baghdad, and their impact on the chemical composition of brines. The margina...

Protecting the quality of water resources has become a priority in Algeria and in several countries around the world, due to droughts and proliferation of pollution sources, such as domestic and industrial wastewater discharges, raw discharges, chemical fertilizers, etc. The valley of Oued Righ, which is one of the oldest cultivated areas and one o...

ABSTRACT Southern Algerian's natural brine sampled from chott Baghdad may be a source of mineral salts with a high economic value. These salts are recoverable by simple solar evaporation. Indeed, during isothermal solar evaporation, it is possible to recover mineral salts and to determine the precipitation sequences of different salts as a function...

Plusieurs études on été réalisées sur les lacs salés et les chotts, dont le but est la connaissance détaillée de ces écosystèmes du Sahara algérien et leur valorisation. Le but de cette étude est et la caractérisation chimique de ces saumures, le chott à fait l'objet des analyses physico-chimiques et géochimiques. Les résultats obtenus montrent que...

الهدف من عملنا هو إعادة بناء البيئة القديمة للحجر الرملي نصف الصلب لعصر الميو بليوسان لأدنى الصحراء، على أساس الدراسات المكرومورفولوجية التي أجرية على الشرائح الرقيقة وكذلك على الدراسات المعدنية والرسوبية. شهدت منطقة الصحراء مناخ متناوب من الشبه الرطب الى الشبه الجاف، والذي تميز بترسب مستويات من القشر الكلسية. تسمنت أو تلاحم هذه التكوينات في المستو...

In this article, we present a two-dimensional study of laminar natural convection in porous enclosure. The horizontal walls of the enclosure are thermally insulated, where as the left and right vertical walls are maintained respectively at different temperatures TC (warm temperature) and Tf (cold temperature).we present the differential equations m...

El Outaya plain is located on the southern flank of the Aures Mountains, as part of the Saharan Atlas. It has an arid climate (less than 200 mm of rainfall / year). The Mio-Pliocene aquifer associated with this plain is an important resource for irrigation and drinking water.-Achieving the first hydrodynamic model of the Mio-Pliocene ground water i...

The hydrocarbon reservoir of lower triasic of Hassi Berkine (TAGI-HBNS) belongs to the oil province of Algerian Sahara. The principal petrophysical parameters were measured by logging on intervals of 0.15 m. of whole. It was explored by 61 wells drilled by Sonatrach/Anadarko. Tests performed at the well, prior to field production of HBNS, have obse...

The hydrocarbon reservoir of lower triasic of Hassi Berkine (TAGI-HBNS) belongs to the oil province of Algerian Sahara. The principal petrophysical parameters were measured by logging on intervals of 0.15 m. of whole. It was explored by 61 wells drilled by Sonatrach/Anadarko. Tests performed at the well, prior to field production of HBNS, have obse...

The Merouane Chott, located in arid southeastern Algeria, experiences annual cycles of filling from September through February followed by its complete evaporation from February through June. The concentration of 15 trace elements (Li, B, Ti; V, Cr, Mn, Co, Cu, Ni, Zn, As, Sr, Ba, Pb, Bi, and U) were measured in chott water samples collected from J...

Le présent travail portera sur les granites de la région de Tissalatine, située à 10km au nord-nuest de la ville de Djanet. Cette région est caractérisée par la présence de deux types de granites : les granites pharusiens et les granites post-tectoniques. Les arènes granitiques sont le produit de l'altération des granites, exposées aux conditions d...

Le Sahara est connu par sa stabilité sur le plan tectonique, sismique et volcanique. M'rara est une région saharienne menacée par plusieurs risques naturels tels que les affaissements, les effondrements et les bétoires. Vue l'insuffisance des études géologiques et hydrogéologiques dans la région, nous a obligé de faire étude d'un diagnostic, qui po...

Les chottsMerouaneetMelghirreprésententunegrandedépression,formantdesbas- sinsendoréiques,reliquatsdelamermiocènedubassinduSaharaseptentrional.Cettedé- pression représentedesconditionstrèsparticulières;unealtituderemarquable(-31m)au dessousduniveaudelamer,unclimatdésertiquecaractériséparunététrèschaudetunhiver trèsfroid(50°à5°c).Letauxd’évaporation...

The Merouane Chott, located in southeastern Algeria, is an ideal natural system for studying mineral dissolution and precipitation rates because it (1) undergoes annual cycles of filling and complete evaporation, and (2) has a simple, well defined hydrology. The major element concentrations of Merouane Chott lake waters were measured weekly from Ja...

Le système climatique de notre planète est en équilibre depuis des centaines de millions d’années, voire depuis la création de la terre. Il a le soleil comme source d’énergie et le couple océan-atmosphère comme régulateur naturel ; et de tout temps la notion du climat qui englobe un ensemble de paramètres (humidité, température, pluviométrie, etc.)...

Merouane Chott ephemeral lake is an ideal natural system for studying mineral dissolution and precipitation rates because (1) it undergoes annual cycles of filling and complete evaporation, and (2) it has a simple, well-defined hydrology. The major element concentrations of Merouane Chott lake waters have been measured weekly from January to June 2...

Angioneurotic edema (AE) is a rare but severe disease. Hereditary AE is the more well-known form. The acquired form is exceptional: the symptoms are the same but there are some biologic and treatment differences. We investigated the clinical and biochemical features in nine patients with acquired angioneurotic edema (AAE). Four of the patients with...

OBJECTIVE: Angioneurotic edema (AE) is a rare but severe disease, Hereditary AE is the more well-known form. The acquired form is I exceptional: the symptoms are the same but i there are some biologic and treatment differences. We investigated the clinical and biochemical features in nine patients with acquired angioneurotic edema (AAE). PATIENTS A...