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Africa (Sub-Sahara) Eni started production from the Nené Marine field, which sits in the Marine XII block in 28 m of water, 17 km offshore the Republic of the Congo. The first phase of the field produces from the Djeno pre-salt formation, 2.5 km below the ocean floor at a rate of 7,500 BOEPD. Future development will take place in several stages and will involve the installation of more production platforms and the drilling of at least 30 wells. Eni (65%) is the operator with partners New Age (25%), and Société Nationale des Pétroles du Congo (10%). The well's primary target is the Bunian structure: a four-way, fault-bounded anticline, which was defined by a 3D seismic survey. It will be drilled to a total depth of 1682 m.
Africa (Sub-Sahara) Mazarine Energy has started a two-well drilling campaign in the Zaafrane permit in central Tunisia. The first well, Cat-1, has been spudded and is targeting the Ordovician interval at a planned total depth of 3900 m. Mazarine (45%) is the operator with partners ETAP (50%) and MEDEX (5%). Asia Pacific China National Offshore Oil Company (CNOOC) has made a natural gas discovery at its deepwater Lingshui 25-1 well, northeast of Ledong sag in the South China Sea's Qiongdongnan basin, where the average water depth is 980 m. The well was drilled to a depth of 4000 m and encountered 73 m of oil and gas pay. During a test, the well produced approximately 35 MMcf/D of natural gas and 395 BOPD. CNOOC holds full operated interest in the license.
Africa (Sub-Sahara) Bowleven began drilling operations at its Zingana exploration well on the Bomono permit in Cameroon. Located 20 km northwest of Douala, Cameroon's largest city, the well will target a Paleocene (Tertiary) aged, three-way dip closed fault block. The company plans to drill the well to a depth of 2000 m and will then spud a second well in Moambe, 2 km east of Zingana. Bowleven is the operator and holds 100% interest in the license. Asia Pacific China National Offshore Oil Company (CNOOC) has brought its Dongfang 1-1 gas field Phase I adjustment project on line ahead of schedule. The field is located in the Yinggehai basin of the Beibu Gulf in the South China Sea and has an average water depth of 70 m. The field is currently producing 53 MMcf/D of gas and is expected to reach its peak production of 54 MMcf/D before the end of the year.
Africa (Sub-Sahara) BP and Kosmos Energy discovered 30 m of net gas pay in good-quality Albian reservoir in the Greater Tortue development area, offshore Senegal. The Greater Tortue Ahmeyim-1 was drilled to a TD of 4884 m in 2500 m of water on the eastern anticline within the unit development area. Other partners are SMPHM and Petrosen. Invictus Energy said results of independent estimates strongly support the possible existence of 1.3 billion BOE at its Cahorra Bassa Basin project in the Muzarabani prospective area of Zimbabwe. Estimates are for total prospective resource of 9.25 Tcf of gas plus 294 million bbl of conventional gas and condensate. Eni confirmed 650 million bbl of oil in place with its Agogo-2 appraisal well in Block 5/06, offshore Angola. The well was drilled to total depth of 3949 m in 1700 m of water, where it encountered 58 m of 31 API oil.
Total resigned its operator role for five exploration blocks located in the Foz do Amazonas Basin, 120 km offshore Brazil. Equinor will drill three new wells at a cost of $219.3 million at the Martin Linge field in the Norwegian North Sea to ensure safe production after an analysis found four previous wells drilled there did not have necessary barriers. Petrobras completed a drillstem test (DST) in the Júpiter Discovery Assessment Plan, located in the Santos Basin pre-salt carbonate reservoir. A recent round of funding which raised $18 million positioned ReconAfrica to proceed with drilling and seismic programs for the Kavango basin in Namibia, said CEO Scot Evans. CGG began a multiclient 3D survey in the Northern North Sea to provide a second azimuth over its existing Northern Viking Graben (NVG) multiclient 3D survey and extend into open acreage on offer in the UK 32nd License Round.
The basic objective of this course is to introduce the overview and concept of production optimisation, using nodal analysis as a tool in production optimisation and enhancement. The participants are exposed to the analysis of various elements that help in production system starting from reservoir to surface processing facilities and their effect on the performance of the total production system. Depth conversion of time interpretations is a basic skill set for interpreters. There is no single methodology that is optimal for all cases. Next, appropriate depth methods will be presented. Depth imaging should be considered an integral component of interpretation. If the results derived from depth imaging are intended to mitigate risk, the interpreter must actively guide the process.
Achieving high hydrocarbon recovery is challenging in unconventional tight and shale reservoirs. Although EOR/EGR processes could potentially improve the recovery factor beyond the primary depletion, large-scale field application of these processes are not yet established in these reservoirs. This session will focus on the latest research trends, modelling and experimental work to better understand issues involved in improved economic recovery from such reservoirs.
Automated image-processing algorithms can improve the quality and speed in classifying the morphology of heterogeneous carbonate rock. Several commercial products have produced petrophysical properties from 2D images and, to a lesser extent, from 3D images. Duri Field in Indonesia is the largest active steamflood project in the world. The field produces 73,000 BOPD, and 10,000 optimization jobs are executed annually to support base production. Fluid saturation isn't what it used to be when it comes to unconventional reservoirs.