Cased Hole Wireline Services

Cased Hole Wireline Services

Production Logging

Production logging services are necessary for a full evaluation of static and dynamic conditions of the reservoir. Real-time, depth-correlated production data, including flow rates, pressures, and gas/oil/water ratios, provide input for pressure transient and nodal well test analysis and reservoir simulation. Using these key production parameters, it is possible to evaluate drilling and production operations at the well site and to diagnose potential problems such as water or gas breakthrough, crossflow of thief zones, and channelling.

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Cement Evaluation

Cement evaluation tools ensure hydraulic isolation between reservoir layers by measuring the bond between the casing and the cement pumped in the wellbore annulus. Before final well completions are made, the zones being completed must be analyzed for hydraulic isolation to prevent possible crossflow between reservoir zones behind the casing. Cement evaluation logs provide results to confirm zonal isolation and help you decide whether remedial work is required before any completions are attempted.

The Radial Bond Tool™ (RBT™), Segmented Bond Tool™ (SBT™), and Acoustic Cement Bond Log™ (CBL™) services provide detailed evaluations of the cement bond to casing and formation in a wide variety of pipe sizes and borehole fluid environments. These evaluations reduce uncertainties regarding the quality of the hydraulic isolation of zones of interest, allowing more efficient completion operations while protecting the environment.

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Pipe Recovery

The Radial Bond Tool™ (RBT™), Segmented Bond Tool™ (SBT™), and Acoustic Cement Bond Log™ (CBL™) services provide detailed evaluations of the cement bond to casing and formation in a wide variety of pipe sizes and borehole fluid environments. These evaluations reduce uncertainties regarding the quality of the hydraulic isolation of zones of interest, allowing more efficient completion operations while protecting the environment.

Mechanical Pipe Cutter (MPC)

The Mechanical Pipe Cutter™ (MPC™) electromechanical tool reduces logistical and environmental constraints of stuck pipe or pipe recovery operations by providing precise downhole pipe cutting without the use of ballistics or hazardous chemicals, and while reducing rig site downtime, personnel risk, and overall intervention costs.

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Chemical Cutters

Chemical cutters produce a flare-free, burr-free cut that allows easy engagement of an overshot. Chemical cutters do not require the pipe to be torqued up the way that the string shot backoff tool does. Occasionally, stuck pipe rotates even though it cannot be pulled, making a backoff operation impossible. See figure a.).

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Jet Cutters (JC)

The Geoplex jet cutter uses a cutting action produced by a circular-shaped charge to sever a variety of drill pipe and tubing. This type of cutter typically leaves a flare on the severed pipe string. To perform subsequent pipe recovery operations, it may be necessary to dress the top end of the fish with an internal mill, usually run with an overshot. See figure b.).

Perforation

The StimGun* assembly is a propellant-assisted perforating technology that dynamically cleans and stimulates the near-wellbore area. It can be deployed via wireline, tubing, drill pipe, or coiled tubing (CT). It has two major components: the perforating gun and the sleeve of special propellant material surrounding the gun.

When the propellant sleeve is ignited during the perforating event, a burst of high-pressure gases enters the formation, opening up the perforations and generating near-wellbore fractures. The result is improved penetration into the formation and greater connectivity to the wellbore.

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