drill-stem test

drill-stem test

[′dril ′stem ‚test]
(petroleum engineering)
Bottom-hole pressure information obtained and used to determine formation productivity.
References in periodicals archive ?
The wireline technology enhances the understanding of the rock and fluid properties of the formation and enables the company to make informed decisions and minimize drill-stem test risks.
The well is currently being conditioned for an open-hole drill-stem test, before resuming drilling to the objective Ellenburger.
PK), the Brazilian oil and gas company responsible for the largest private-sector exploratory campaign in Brazil, announced today that it has concluded the drill-stem test performed in the Santonian section of well 1-OGX-47-RJS, in the BM-S-59 block, in the shallow waters of the Santos Basin.
The testing will utilize both tubing-conveyed perforating and a drill-stem test assembly to reliably establish the gas production capacity of the well.
The Liuhua 11-1-6 well -- one of the longest offshore horizontal wells on record -- initially pumped 12,000 barrels of 21-degree API gravity oil per day in an extended drill-stem test.
An open hole drill-stem test will be attempted on April 4, 1992 to determine the fluid content of this porous zone.
The presence of a thick oil column was confirmed through the collection of extensive formation pressure data, 11 fluid samples and one drill-stem test (DST).
The second drill-stem test produced at a rate of 505 bopd of 17-degree API oil with a GOR of 112 scf/bbl.
The second drill-stem test produced at a rate of 190 bopd of 18-degree API oil with a GOR of 190 scf/bbl.
A drill-stem test of limited duration, 96 hours, of a perforated interval between 6,274.
A flow rate of 41 million cubic feet of natural gas per day was achieved on a drill-stem test through a 54/64 inch choke.
Of the two natural gas drill-stem tests, it has been estimated that as much as 80% of approximately 10 million cubic feet per day (MMcf/d) produced in one drill-stem test was CO2 and as much as 60% of approximately 6 MMcf/d produced in the other drill-stem test was CO2.