Abstract
Abstract Production from many oil and gas fields is restricted as the reservoir pressure drops. This situation becomes worse when water-cut also increases. The restrictions in production also apply to satellite fields or in deep water applications where long distance transport of fluids is involved. In order to maintain production at an economical rate and also to increase total recovery from the field, a production boosting system is always required. Some production boosting solutions require major investment and major changes or upgrading of the existing production system. Surface Jet Pumps (SJPs) are simple, low cost, passive devices which use a high pressure (HP) fluid as the motive force to boost the pressure of produced gas and liquid phases. The system enables the flowing wellhead pressure (FWHP) to be reduced in order to increase production, whilst meeting the downstream production pressure requirements. A high pressure fluid is needed as the source of energy or motive flow. The applications of Surface Jet Pumps include revival of dead or liquid loaded oil and gas wells. The oil and gas industry has in recent years become more aware of their applications and benefits. This paper covers their main applications including boosting production from selected oil and gas wells, boosting the pressure of low pressure gas, prevention of flaring very low pressure gas, eliminating the need for intermediate compressors, de-bottlenecking compressors, preventing HP wells backing out LP wells and revival of liquid loaded wells. In addition to referring to recent field examples, issues such as performance, ranges of operation, key features of the system and solutions for gas or oil production applications are described. The paper also addresses the economic aspects and pay-back periods. Field applications have shown that the recovery of the capital spent in installing surface jet pumps is generally achieved within a few weeks to a few months.
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