Unit Technical Specification

The 1-11/16” Gamma Ray/CCL tool utilizes a scintillation style detector with a 1 x 4- inch crystal coupled to a ruggedized high temperature Photomultiplier Tube packaged in a shock mounted assembly.

Gamma Ray and CCL information is driven onto a mono cable wireline and is received at the surface by any logging system capable of processing pulse data. The output pulse may be configured for either positive or negative polarity on the wire line.

The dual magnet center coil CCL provides maximum sensitivity through 7" diameter casing. Optional internal circuitry enables no loss in count rate when operated simultaneously with bond equipment.

The Gamma Ray/CCL tool is run below the Dual Receiver Cement Bond Tools. This tool also contains a dual magnet center coil CCL with goods sensivity to measure collars in casing up a 7.0 inch diameter. The Gamma Ray/CCL can be stacked with a neutron or compensated neutron below the CBL or run alone. 

Gamma Ray and CCL information is driven onto a mono cable wire line and is received at the surface by any logging system capable of processing pulse data. The output pulse may be configured for either positive or negative polarity on the wire line.

This cased-hole instrument uses a large ruggedized shock-mounted scintillation crystal coupled to a high resolution ruggedized detector to measure formation gamma ray counts with good stability over a wide range of logging speeds.

The Gamma Ray log measures the natural gamma radiation produced by the disintegration, or decay, of radioactive nuclei in the formation. Since these nuclei tend to be more abundant in certain types of formations, the Gamma Ray log is basically a lithology log. The Gamma Ray log is used primarily as a shale log in the petroleum industry, since shale are generally the most radioactive sediments encountered in these wells. This log is used, in the mining and mineral industry, to locate and evaluate deposits of radioactive minerals such as potash or uranium ore.

The Gamma Ray log is one of the most, if not the most, commonly used well logs. Part of this wide usage is due to the versatility of the log, which can be used in both cased and open holes with any type of borehole fluid. The utility of this log is also enhanced by the fact that it can be combined with many other logging services, and thus can be run with little additional cost either in money or rig time.  

Gamma Ray logs are usually calibrated in API units. An API Gamma ray unit is defined as 1/200 of the difference in log deflection between zones of low and high radiation in the Gamma Ray calibration pit of the University of Houston.

This pit has three of artificially manufactured homogeneous radioactivity that corresponds to the range of natural radioactivity. The center zone contains a radioactive concrete whose radiation is equal to approximately twice that of overage shale in the Mid-Continent region. The level of radioactivity was achieved in the center zone by incorporating in its 13 ppm uranium, 24 ppm thorium, and 40,000 ppm potassium.

The Dual Receiver Digital Cement Bond Log Tool utilizes a single acoustic transmitter and dual acoustic receivers spaced at 3 ft. and 5 ft. to accurately measure the quality of the cement job in a cased-hole environment.

The tool uses an oil filled mandrel and all ceramic transducers to withstand the hostile environment of the well bore and provide good stability over the operating range of the tool.

The electronics section is constructed using state of the art surface mount electronic modules mounted in a ruggedized package. The digital bond log tool can be stacked with Gamma-Ray-CCL and Neutron tools.

The bond tool accepts pulse from below and transmits the data up hole using Probe PTX telemetry. The electronics also contain firmware to perform an auto-calibrate routine when calibrated in a bond tool calibration fixture. These waveforms are stored in the tool and can be transmitted up hole upon operator demand.

The Model “E-4” Wire line Pressure Setting Assembly (WLPSA) is a device in which the products of combustion are utilized for the gradual development of force through pressure. This motive force operates the various working parts of the WLPSA in a proper sequence to ensure the successful set- ting of Bridge Plugs, Retainer Production Packers, Cement Retainers, and other products.

The pressure required is built up through the burning of a Slow Set Power Charge or a Standard Power Charge, which was originally known as a High Temperature Power Charge. The setting pressure is confined to the proper area of the setting tool through the use of O- ring Seals. It is of extreme importance that all of these O-rings be maintained in perfect condition.

The Model “E-4” Wire line Pressure Setting Assembly incorporates a Disk Bleeder Valve to pro- vide a safe, easy method of bleeding off trapped pressure before disassembling the WLPSA After it has been run. 

Model MWB Wireline Set Bridge Plugs are compact, small OD and designed for easy drill out. These Bridge Plugs will set securely in all but the very highest tensile casing. A ratchet lock ring stores the setting force in the Plug. The one piece packing element and metal back up rings combine for a superior seal. The case hardened, one piece slips virtually eliminate premature setting, yet can be easily drilled out. They are available for 2 3/8" through 20" casing.

We have guns of various sizes, lengths and shooting density for TCP, Casing Gun and Thru Tubing services.

Depending on the required system, the appropriate 2.0 "to 7.0" OD Guns are used with shoot density from 4 to 24 shots per foot and lengths from 4, 7, 11, 15 and 21 feet.

The type of explosive to be used is selected according to the temperature of the well: RDX, HMX, PYX and HNS

Additionally, depending on the well pressure, the pressure range of the guns to be used will be choosen: 10000, 15,000, 20000, 25000 psi.

Tripoint has the WEM (Well Evaluation Model) software for design the type of Guns to use in particular service, may be TCP or Casing Gun jobs.

Guns suitable for a completion are selected and the surface performance data are converted to actual downhole condititions.

Analytical flow technology is used to determine the impediment to flow resulting from the perforations created to establish comunication between the reservoir and welbore. Inflow is then determined from reservoir flow performance with various perforating strategies. The optimun perforating strategy is determined by comparing incremental flow rates with incremental cost and risk elements associated with each procedure. 

The Surface Wireline Pressure Control Equipment is an assembly of accessories that provide well control and safety in the well. In normal operations the assembly consist of a blow out preventor (BOP), a drain nipple to relief internal pressure, various sections of lubricator and a control head or stuffing box. 

The pressure control equipment used in a well operation is determined by the maximun expected pressures and temperatures, for the type of fluids in the well and by the length and diameter of the tools string. 

Generally one or more 10 foot lubricator sections are used to cover the tool string length used for a particular operation.

For the safety and handling reasons, quick connections are preferred for hook up. 

Tripoint S.A. has 3-1 / 2 "x 5000 psi surface pressure control equipment and a 7.0" x 5000 psi pressure range with their respective BOP's.