Tests on oil and gas wells are performed at various stages of well construction, completion and production. The test objectives at each stage range from simple identification of produced fluids and determination of reservoir deliverability to the characterization of complex reservoir features. Most well tests can be grouped as productivity testing or descriptive testing. PDK offers various types of Surface Well Testing including: Conventional Test and Clean up, High Rate Test and Clean up.
Drill Stem Test (DST) is a method of gathering data on the potential productivity of a reservoir before a permanent completion string is installed. DST has been the industry standard for testing new and especially exploration wells for almost a century. These tests are one of the primary methods used to evaluate a new formation to determine its commercial feasibility. These tests are typically performed using a special DST tool that has downhole pressure gauges installed.
PDK Special DST solution offers complete DST strings and internationally experienced and trained personnel, PDK is perfectly capable to fulfill DST operations with up to 15 Kpsi down hole pressure and temperatures up to 410 degF.
Perforating is a process used to establish a flow path between the near reservoir and the wellbore. It normally involves initiating a hole from the wellbore through the casing and any cement sheath into the producing zone. PDK provides various types of Perforation techniques in Overbalanced and Underbalanced conditions, such as Wireline Perforation, Coiled Tubing Perforation (CTP), and Tubing Conveyed Perforation (TCP) with different Gun types (HSD, Enerjet, Phased Enerjet, Spiral, ...), and vast range of Gun sizes (", 4-1/2", 3-3/8", 2-1/8", 1-11/16", ...) for both Oil and Gas wells.

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