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Formation Tester
Tubing-Mounted Single-Phase Fluid Sample Carrier
The tubing-mounted single-phase fluid sample carrier for running on standard drillstem tests (DST), shoot and pulls, or anytime a tubing conveyed fluid sampling system is needed. The carrier is able to retain a 2.25-in. ID and fishability specifications in 7-in. and above casing even when carrying two full-size 600-cc 1.75-in. single-phase fluid samplers.
Shock absorbers protect pressure-measuring equipment or other sensitive components in the workstring for shock loads transmitted through the workstring by firing of TCP guns. It hasVertical and Radial type.
The RTTS Packer is a full-opening，hookwall packer used for testing、treating、and squeeze cementing operations。In most cases，the tool runs with a circulating valve assembly.
The RTTS circulating valve is a locked-open/locked-closed valve that serves as both a circulating valve and bypass. The clearance between the RTTS packer (or any hookwall packer) and the casing ID is relatively small. To reduce the effect of fluid-swabbing action when the tool is run in or pulled out of the hole, a packer bypass is generally used.
The RTTS Safety Joint is an optional emergency back off device. The safety joint releases the workstring and tool above the packer if the packer becomes stuck during operations.
The drain valve consists of a ported body, sliding sleeve, and rotating nut, which controls the position of the sliding sleeve. The sleeve either covers or exposes the ports in the body of the valve. The drain valve is suitable for sour service at all temperatures. A drain collar and associated components are required when relieving pressure.
The hydraulic circulating valve serves as a bypass around the packer or as a circulating valve to circulate a well after testing. When run below a closed valve, the tool serves as a bypass around the packer and helps relieve pressure buildup below the closed valve when it is stung into a production packer.When run above a closed valve, the tool can be used as a circulating valve when the workstring is picked up.
Internal Pressure Operated (IPO) Circulating Valve
The internal pressure-operated (IPO) circulating valve is a single-shot circulating valve which allows circulation through the workstring before trip-out and serves as a drain valve during trip-out. It can be run in cased holes or openholes and maintains a full bore through the tool. The IPO circulating valve is used in the following situations:
Pressure Operated Tester Valve
The Pressure Operated Tester Valve is a full-opening, annulus pressure-operated valve. It measures multiple closed-in pressures in cased holes where pipe manipulation is restricted and a full-opening string is required. The nitrogen chamber is charged at the surface to a selected pressure. determined by surface temperature, bottomhole temperature, and bottomhole pressure. If the intended test requires a permanent packer that uses a stinger mandrel or seal nipple, a variety of Halliburton bypass tools are available, depending on field application, to help ensure that the formations and downhole equipment are protected from excessive pressure buildup.
The Repetitious circulating valve is an annulus pressure-operated, recloseable circulating valve. Throughout the operation, the tool is repeatedly cycled up to a predetermined annulus pressure and then released.
The round mandrel slip joint, like other slip joints, accepts the movement associated with ocean heave or temperature change without allowing the movement to disturb the placement of downhole tools.
Rupture Disk (RD) Safety Circulating Valve
The rupture disk (RD) safety circulating valve functions as both a safety valve and circulating valve. The tool functions as a safety valve when the annulus pressure reaches a predetermined value. At that pressure, the valve isolates the workstring below the tool and establishes communication between the annulus and the workstring above the tool. This tool converts into a circulating valve when the ball valve section is removed.
The Rupture Disk (RD) Sampler is a full-open, full bore sleeve sampler for use on drillstem tests. The sampler is controlled by a rupture disk that is operated by annulus pressure.
Rupture Disk (RD) Tubing String Testing (TST) Valve
The Rupture Disk (RD) Tubing String Testing (TST) Valve is is a full-opening valve used to pressure-test the workstring while running in the hole.
Rupture Disk (RD) Tubing String Testing (TST) Bypass Valve
The rupture disk (RD) tubing string testing (TST) bypass valve is a weight-activated, normally open valve. It is run in the workstring to prevent pressure buildup below the tester valve while stinging into a production type packer or while setting a retrievable packer during a well test. It is a “one shot” type tool that must be removed from the well to re-open it.
The tool is composed of three major sections: The bypass port section consists of an upper adapter, ported mandrel,and ported nipple. The upper adapter contains two 1/4 NPT ports. Pressure applied to the lower port shifts the ported mandrel up. Pressure applied to the upper port shifts the ported mandrel down. This allows the tool to be pressure tested at the surface prior to going in the well.The metering section contains an air chamber and an oil chamber separated by a metering cartridge. Once the tool has been triggered, the operating mandrel in the section.moves up, closing the bypass ports. This section provides a 10 to 20-minute delay, depending upon the hydrostatic pressure, in the closure of the ports.The trigger section is composed of a rupture disk nipple, splined housing, floating piston, splined mandrel, and lower adapter. The splined mandrel, floating piston,and splined housing form a hydraulic ram whenever weight is applied. The resultant pressure is transmitted to a rupture disk in the rupture disk nipple. This prevents any upward movement of the splined mandrel until the correct weight is applied to shear the rupture disk.
Tubing String Testing （TST）Valve
The tubing string testing (TST) valve is a full-opening valve used to pressure-test the workstring while running in the hole. The valve is operated after it is stung into a permanent packer or after a retrievable packer is set. The TST valve requires a differential pressure between the annulus and the tubing to shear. The TST valve can also be used for pipe flexing if it is run below an annulus pressure-responsive circulating valve.
The TST valve consists of: flapper valve and spring， shear pin section， locking dogs
Features and Benefits：Flapper valve requires only 4 psi to open. Testing string can be pressure-tested as many times as required as it is run in the hole.Valve shear rating can be pre-determined at 500 psi increments.Valve can also be used for pipe flexing.
