Lagos Chapter Technical Meetings

Lagos Chapter Technical Meetings (34)

Technical Meeting E Poster for June 2017 Lagos

Topic: Putting Sedimentology At The Heart Of Reservoir Evaluation Studies
The Lagos June Technical meeting was held Wednesday June 21, 2017 at the Eko Hotel & Suites, Victoria Island Lagos. The presentation was made by Momodu Ogwogho, a staff of Total E & P for more than13 years. He currently oversees sedimentologic studies and interventions for Total E & P Nigerian subsidiary in the Joint Venture and Deep Water Assets.
The meeting was sponsored by Total.

Technical Meeting E Poster for MAY 2017 Lagos

Topic: Logging-While-Drilling (LWD) Pressure Data Acquisition, Interpretation & Challenges: A Case Study from Offshore Niger Delta
The Lagos May Technical Meeting was held on May 17, 2017 at the Grand Ballroom of Eko Hotel and Suites, Victoria Island, Lagos. The technical presentation was made by Akomeno Oyegwa, an Earth Scientist with Chevron Nigeria Limited. The topic presented was "Logging-While-Drilling (LWD) pressure data acquisition, interpretation and challenges: A case study from Offshore Niger Delta - Okan field example. In the case study, an LWD tool was used to acquire pressure data in three recently drilled wells within a chevron mature field located offshore Niger Delta. The field has been on production for over 50 years. Although considered a brown asset, the field still has great production potentials from possible by-passed pays and thin undeveloped reservoirs. The core objectives of the data acquisition campaign were to measure depletion, determine fluid densities, establish fluid contacts and to check for reservoir compartmentalization. The current acquisition and interpretation results presented some challenges and interesting information that queries previous assumptions on the field, e.g the ability to adequately interpret fluid types and contacts from conventional log signatures even in seemingly clean reservoir intervals. In one of the wells, resistivity log suggested hydrocarbon water contact position, porosity logs suggested hydrocarbon beyond/below the limits suggested by the resistivity while pressure profiles confirmed the fluid type as oil and fluid contact as correctly described by the resistivity log. In a second scenario, there was a case where pressure data helped to differentiate two unconnected reservoirs having a pressure difference of 11psi. Pressure data must be integrated with other logs as there could be discrepancies or wrong predictions from pressure data tool. The key lesson learnt from the acquisition and interpretation process is that basic log data are not always conclusive/sufficient to determine reservoir fluid type and contacts, especially in mature fields. The recommendation was that pressure data should be integrated with other logs and acquired while drilling using LWD to avoid re-entry and refill. Downhole fluid analysis/sampling should be considered especially in fluid typing and it is required that the mud pumps should be working perfectly well in order to effectively manage and reduce the duration for pressure data acquisition.

The meeting was sponsored by Chevron Nigeria Limited.

For the Presentation, Click Here.

For the Meeting Pictures, Click Here.

Technical Meeting E Poster for March 2017 Lagos

Topic: The Impact of Rock Typing and Sandstone Petrology in Exploration and Production
The Lagos March Technical meeting was held on 16th March, 2017 at the Lantana hall, Eko Hotel and Suites, Victoria Island Lagos. The technical presentation for the day was given by Dr. Thomas L. Dunn of Chevron Energy Technology Company who currently doubles as an AAPG distinguished lecturer. His presentation showcased the significance and value of applying rock typing and rock catalogs to formation evaluation which has proven to be the best predicting tool to delineate whether a unit will flow. This method is becoming increasingly valuable as it resolves the problems/uncertainties associated with deriving accurate estimates of permeability. He presented two case studies from the Deepwater Gulf of Mexico, which shows where time-critical rock typing contributed to decisions to (i) continue drilling in one case (ii) to stop drilling and complete a well in the other case. The methodology is an integrated estimation method which links rock types, log responses and production performance. He cited a scenario where there was good permeability estimation from rock-typing which helped to increase the level of confidence for planning an injector well to drive fluid to primary extraction point within a massive reservoir unit.

The meeting was sponsored by AAPG African Region.

For the meeting pictures, Click Here.

Technical Meeting E Poster for February 2017 Lagos

Topic: Integration of Petrophysical Data: Key to Mature Fields Rejuvenation
The meeting was held on Tuesday 28th February, 2017 at the Grand ballroom, Eko Hotel and Suites, Victoria Island, Lagos. The presentation was done by Dr Luis Quintero, a Global Advisor – Production Management, Halliburton. In his presentation, Luis described how the approach of integrating petrophysical data lead to a better understanding of the uncertatinty associated with a field’s economic value and hence guided the dictation criteria for development plans.
The meeting was sponsored by AMNI International Petroleum Development Company Limited.

For the Presentation, Click Here.

For the meeting pictures, Click Here.

Topic: Integration of Petrophysical Data: Key to Mature Fields Rejuvenation

The meeting was held on 28th February, 2017 at the Grand ballroom, Eko Hotel and Suites. The presentation was done by Dr Luis Quintero, a Global Advisor – Production Management, Halliburton. In his presentation, Luis described how the approach of integrating petrophysical data lead to a better understanding of the uncertatinty associated with a field’s economic value and hence guided the dictation criteria for development plans.

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