Presentation on theme: "Oil and Gas Exploration"— Presentation transcript:
1Oil and Gas Exploration In Iraq:AchievementsandProspectsSalem J.RAZOKY Imad F. El BIRGeophysical Expert & Geological ExpertOil Exploration Co.(OEC),IraqBaghdad March 2005
2Historical DevelopmentH : 1st exploration well in Chia Surkhstructure .1st oil discovery in Oligocenemarl.1927 : Grand discovery of oil in Kirkuksuper giant field.1938 : Exploration activities terminatedbecause of the war preparation.
3 1948 : Commencing exploration again by IOCs using seismic methods, mainly inthe South:-Zubair and Nahr Umr oil fields in 1948-Rumaila oil field in 19531961 : Termination of exploration activitiesby IOCs according to law No.80
41964 : Iraq National Oil Co. (INOC) established. 1970 : 1st national seismic party.1973 : W.Qurna super giant oil fielddiscovered.followed by many other oil discoveries inthe1970s and 1980s,
5-Majnoon, E.Baghdad , Halfaya, Nasiriya, - Greater Nahr Umr .1982 : (12) seismic parties owned by INOCand (11) contracted foreign seismic crews. : 3D party. s : Only two or three national seismicparties operational .
61992 : Discovery of Akkas gas field in the western desert.2003 : All operating seismic partiesdestroyed and/ or looted.
7Main Exploration StatisticsM Seismic surveys : 233k lin-kms of 2D linesand 3D surveys in two areas: Balad andKifl.204 exploration wells , ,in 124strucures (136 domes) :
8- - 96 wells by IOCs, in 63 Structures. -108 wells by National efforts after 1961in 61 structures.m T.D. of the deepest well in Iraq,WK – 1 in 1987 penetrating ButmahFormation in Lower Jurassic.
9(73 +) fields discovered - 64 oil fields (10 super giants , 12 giants, 9 very large and 33 others )- 9 gas fields 23 producing fields
10d and ResultsAchievements IPC , MPC and BPC discovered some (34)billion barrels of proven recoverablereserves untilNational exploration activities discoveredmore than 100 billion barrels of additionalproven oil reserves, making Iraq secondonly to
11 Saudia Arabia, with a total of about 115 billion barrels of proven oil reserves, 214billion barrels of possible oil reserves,and the important gas discovery in Akkasfield in the western desert.
12 These proven oil reserves are : - about 72% from Cretaceous reservoirs. about 20% from Tertiary reservoirs The rest are from Jurassic and Triassicreservoirs.In addition , the exploration activitiesindicated the presence of (3080) BCM ofproven gas reserves with about (9250)
13These proven oil and gas reserves are located in some (73) oil and gas fields: oil fields~ 10 super giant fields “each with morethan five billion barrels ofrecoverable oil reserves",
14~ 12 giant fields “each with recoverable oil reserves between one and fivebillion barrels" ,~ 9 very large fields " each withrecoverable oil reserves between0.5 to 1 billion barrels ",and~ 33 fields of different sizes).- 9 gas fields.
15 The highest daily production rates achieved until 2004 was 3.5 MBPD oilin 1979 and (1500) BCFPD gas in 1990due to the abnormal circumstances inthe last 25 years.Strangely enough , Iraq is the leastexplored country in the region with anaverage of less than one exploration wellper 2000 square kilometers.
16Expectations and ProspectsE Many internal studies in the last (15) yearsindicated the possibility of producing up to6 MBPD while some experts envisagedhigher rates; i.e.,- 8 MBPD- or even 10 MBPD and more.
17With (543) known structures and important structural anomalies and- when only (136) of them are tapped- while more than 400 structures andhundreds of stratigraphic anomaliesare not yet drilled ,
18- The expectation of new discoveries is very high, especially when deep reservoirs in the10 super giant , 12 giant and 9 very largefields have not been explored taking intoconsideration the presence of importantproven reserves in similar or equivalentdeep formations in the surrounding Gulfcountries.
19 With some 50 plus oil and gas fields already discovered , yet not delineatedand / or developed , we expect importantimprovements in their reserves and in theoverall daily production when they wouldbe put on stream. With the important Paleozoic gas discoveryin Akkas, the first structure drilled in the
20Western desert , we expect additional important discoveries in that region where we have many important structures.We also expect to discover gas in many moreimportant northeastern structures where gashas already been discovered in severalstructures.
21 Oil and / or gas and condensates are expected to be discovered in many of theother important structures, structuralanomalies and many stratigraphicanomalies in other parts of Iraq,The increase in the proven reserves anddaily production of both oil and gas isvery highly possible.
22If and when these activities are executed with all other supporting activities,including those related to the necessaryinfra- structure, Iraq's Status in theInternational Petroleum Industry couldadvance from its position prevailing nowas having 2nd highest oil reserves and itsabnormal rather low daily production.