As a 15+ year user of DRC's SPIDR gauge, I can attest to its utility. The SPIDR has given the operator a low-cost alternative to downhole gauges, especially when running an extended well test or back-to-back tests on ... - Ralph R. Roesler
DRC at the SPE Mid-Continent Section Luncheon in Tulsa and SPE Oklahoma City Section
Thursday, December 4, 2008, 11:20
a.m.-1:00 p.m. Speaker:
Dr. Nathan Waldman, Data Retrieval Corporation Topic: “Non-Intervention
Surface Well Testing”
To learn more please visit the SPE Mid-Continent Section homepage http://www.spemc.org/.
Dr. Waldman will also present the same talk to the SPE Oklahoma City Section on Thursday, Dec. 18th at the Will Rogers Theater (4322 N. Western Ave.).
A major operator in SE Asia with a large offshore gas field is producing dry gas from 6 Subea Wells in relatively shallow water (~ 400 ft.). No Downhole Permanent Pressure gauges (DHPG) were installed or any means for individual well flow measurement. The operator contacted DRC because he was interested in knowing reservoir pressure, skin and permeability for his individual wells from pressure transient testing.
The six wells have been on line and producing large volumes of gas for several years. All wells produce from the same reservoir and are in direct communication with each other over the extent of the field. The wells exhibit extremely high permeability (>1 Darcy) and flow large volumes of gas (50 to 100 MMSCFD). The wells also all tie back to a common subsea header and flow to an offshore production facility where cumulative rate is measured.
The Subsea Wellheads are equipped with wellhead pressure gauges.They are sapphire strain gauges of low resolution (5-10 psi) and the data capture frequency (once per 30 minutes) makes any attempt at Pressure Transient Analysis difficult if not impossible under these ultra high permeability conditions.
DRC / Oceaneering deployed the SubSea SPIDR system via a Remote Operated Vehicle (ROV) on one well for the purpose of proving the system.If successful, the SubSea SPIDR would be used for a project later in the year when the field would be shut down for two weeks for installation of compression equipment.
The highly precise SPIDR® (Self Powered Intelligent Data Retriever) data acquisition system is a key component to the DRC process methodology. We are now witnessing other service companies using the name "SPIDR®" generically to describe their efforts at surface testing. Somewhat like using the term "Band-Aid®" to describe a generic adhesive bandage... read more
SPIDR is an acronym for Self Powered Intelligent Data Retriever. The SPIDR was developed for pressure transient testing of oil and gas wells without running gauges downhole. The SPIDR system includes software for programming, downloading and ... read more
Analysis Tools
The SPIDR system has been proven on thousands of wells in fields around the world, delivering well analysis data equal to or superior to that provided by downhole testing.
Using our free software the SPIDR is able to communicate with any PC. FlowCom is a full-featured communications tool for viewing real time data, downloading the SPIDR and processing the test data. go to downloads
