Reducing the Risk in Gas Field Development A Case Study of the E-M field Offshore South Africa

The use of long reach, sub-horizontal wells in the development of structurally complex<br>oil and gas fields has become an increasingly common practice. This paper describes<br>some ways in which the reservoir related risks associated with drilling such wells can<br>be reduced using a variety of geological and geophysical techniques. The E-M gas<br>field, offshore South Africa is presented as a case study.