--> Abstract: Study Case: Challenges of ADMA-OPCO’s Gas Well Situation in Fracture Zone, Offshore Operations, Abu Dhabi, United Arab Emirates, by Ahmed S. Al-Kaabi, Hamdan M. Al-Menhali, and Khalfan H. Al-Mansoori; #90105 (2010)

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AAPG GEO 2010 Middle East
Geoscience Conference & Exhibition
Innovative Geoscience Solutions – Meeting Hydrocarbon Demand in Changing Times
March 7-10, 2010 – Manama, Bahrain

Study Case: Challenges of ADMA-OPCO’s Gas Well Situation in Fracture Zone, Offshore Operations, Abu Dhabi, United Arab Emirates

Ahmed S. Al-Kaabi1; Hamdan M. Al-Menhali2; Khalfan H. Al-Mansoori3

(1) FDD (US), ADMA-OPCO, Abu Dhabi, United Arab Emirates.

(2) FDD (US), ADMA-OPCO, Abu Dhabi, United Arab Emirates.

(3) RTD, ADMA-OPCO, Abu Dhabi, United Arab Emirates.

ADMA-OPCO Well Value Assurance Team planned to drill a well which situated between two faults. The primary objective of the well is to inject 120 MMSCFD of gas in order to achieve the injection target into Upper Jurassic reservoir. This is one of ADMA-OPCO’s Key Performance Indicators (KPI’s). The well was fully analyzed and evaluated from engineering and geoscientist aspect to maximize the value and reduce the drilling risk and reservoir uncertainty. In May 2009, the well was drilled successfully until it reached the lower Cretaceous zones. Severe mud losses occurred at this level. A multi-discipline review of the problems encountered was undertaken by the team and a series of procedures and options were developed to cure the problem. This multi-discipline team work involved the following analysis: (1) petroleum engineering analysis which included well prognosis and drilling actions; (2) geoscientist analysis, which included the geophysical and geological data and (3) reservoir engineering analysis to evaluate the reservoir properties in the sections above and immediately below the bit. The Purpose of this paper is to highlight the importance of integrating many teams to solve such as situations and to emphasize the role of the geoscientist in the well drilling process and decisions. In addition to that ADMA-OPCO would like to share the experience of tackling such a challenging situation.