 Compression and Injection of Gas
Grupo Diavaz purchased ENX in 2003 to offer services of compression and injection of gas for PEMEX Exploración y Producción in the southern region. ENX operates 12 equipment units in mature fields in Tabasco and Chiapas, carrying out the services of separation of fluids, compression and injection of sour natural gas to stimulate the production of the wells, through a system of Pneumatic Auto-Supplied Pumping (PAP) developed by PEMEX. ENX is the only company in Mexico that uses this technology with average production of crude oil of 21.500 MBPD and 23.0 MMPCD of natural gas. With the optimisation of this technology, ENX has contributed to a reduction of costs of more than 80%, eliminating the need to inject nitrogen in the wells where PAP is applied. Furthermore, with the supervision and permanent monitoring, damages to the wells are detected and prevented and information is generated in real time about the production of crude oil and gas and of other parameters needed to achieve the increase of crude oil production. These units of equipment operate 24x7, 365 days a year, with personnel trained in operation, maintenance, telemetry and logistics, strictly following the Safety Standards and preservation of the environment. Self-Fed Gas-Lift Injection and Separation Units (BNA System) Other Services:  | High Pressure Pneumatic Pumping Systems. | | Continuous Service of Compression and Injection in fields. | | Compression and injection services at the wellhead. |
  
Alternated Steam Injection This methodology consists of injecting steam into a well for a certain number of days, wait a few days so that the steam releases heat to the formation (soakage), so as to, afterwards, convert this well into a productive one. This cycle is repeated, generally with a reduction of the rate of production, until the economic limit is reached.  
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Well Services Presently, the petroleum infrastructure is passing through a reduction of the volume of crude oil produced, especially in those zones where the wells are very mature and with obsolete production systems or diminished by the lack of adequate maintenance. Due to this, starting this year, ENX has implemented a new business line, where it establishes “pulling” units for the servicing of wells. Our services are an option for the solution of this problem, since it represents for the customer a lower cost and a substantial savings in execution time of the jobs to be performed. Services: | Installation of new Artificial Production Systems. | | Optimisation, maintenance and well services with Artificial Production Systems. | | Alternated or continuous Steam Injection. | | Cleaning and washing of Bottoms | | Swabbing of Wells | | Change of Headers | | Fluid Control |
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Advantages of Alternated Steam Injection Preparation of the Field deposit for other processes of RMC. Total use of the field deposit’s natural energy. Economically Attractive. For General Application with proven satisfactory results. Does not present major mechanical problems. Capable of generating and maintaining a potential for production in a short time.
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