Thermal Pilot Projects Experiences In Venezuela
Venezuela has heavy oil accumulations with estimated 00IP in excess of 1500 billion barrels. However, most of the oil in these accumulations, although mobile, has high viscosity, which leads to very low primary recovery and creates limits for traditional gas and/or water secondary recovery processes. With the idea of increasing the recovery factor by reducing oil viscosity, those fields have been the object of several pilot projects by applying different thermal processes. In 1957 a steam injection pilot project was conducted in Mene Grande Field and in 1959 an in situ combustion pilot project was started in East Tia Juana Field, both in Western Venezuela. To test the steam flood process under more favourable conditions, a larger scale project was started in East Tia Juana Field in 1961. The project recovered 12.0 MMSTB (20.4％ of the OOIP). In 1978 in the same field, the M-6 project was started and produced around 61 MMSTB (10. 7％ of the OOIP) credited to the steam injection. In the Jobo Field, very close to the Orinoco Oil Belt, a pilot steam drive project was initiated in 1981. The project recovered 8.3 MMSTB (32.3％ of the OOIP) due to the steam injection. Lessons learned will be applicable to increase the recovery factor in the Orinoco Oil Belt to values beyond 30％.
Adafel C.
Rincon,PDVSA CVP,Venezuela
国际会议
首届世界重油大会(The Technical Sessions of the First World Heavy Oil Conference)
北京
英文
192-203
2006-11-12（万方平台首次上网日期，不代表论文的发表时间）