高效、安全、降本 Schlumberger帶來連續油管設備盛宴（上）

Our new-generation coiled tubing (CT) equipment increases the efficiency of coiled tubing services, and offers unrestricted wellhead access. The CT EXPRESS rapid-deployment unit has reduced rig uptime from 3 hours to less than 30 minutes. The CT SEAS unit is more safe and efficient, and it reduces operations from 3.5 days to 2 days.

CT EXPRESS Rapid-Deployment Coiled Tubing Unit

Rig up and rig down quickly in low-pressure land wells, with the capabilities of four trucks in two tractor trailer units.

The CT EXPRESS rapid-deployment CT unit operates with two trucks and a three-person crew. Innovative unit layout and effective use of technology enable quick rig up and rig down and eliminate the need to climb on the unit or work under suspended loads. Process control of all pertinent CT and pumping functions improves job efficiency, economics, and operational safety. During field tests, CT EXPRESS units performed more than 200 jobs without a single lost-time incident. The simple design provides a high degree of reliability over rough terrain and in extreme climate conditions.

The CT unit carries a 40,000-lbf injector and 10,000-psi wellhead pressure control equipment on a 42-ft mast. The unit can be used on wellheads up to 20 ft high, with 6-ft or shorter BHAs. Longer BHAs can be accommodated on shorter wellheads. Tubing remains stabbed during transportation, and BHAs as long as 6 ft can be made up and pressure tested before arriving on location. No hydraulic or electrical connections are made on location, which makes rig up safer and more efficient. The drop-in drum reel and innovative BOP pressure-test stand also make job preparation faster and safer.

A combination-pump tractor carries the fluid pumping and liquid-additive systems and provides electrical and hydraulic power for the unit. The trailer carries the nitrogen pumping system and liquid nitrogen storage tank. The entire system is designed to complement CT operations where pump rates are relatively low, pressures are moderate, and pumping operations continue nonstop for long periods.

Although the combination pumper is designed to be operated remotely from the cab of the CT unit, local controls are also provided for standalone operation. Operational design of the CT EXPRESS unit is entirely electric over hydraulic. The operator controls both the CT unit and the pumps from the control chair, enabling better use of manpower and eliminating communication problems among operators of different units.

The CT EXPRESS unit uses proven Schlumberger CoilCAT treatment for real-time data acquisition to provide information for making onsite decisions.

APPLICATIONS

CT services for land-based rigless wells.

ADVANTAGES

• Two tractor trailer units that have the power of four trucks;
• Improved rollover stability;
• Elimination of need to work under suspended load or to climb on unit;
• Improved logistics that reduce risks and costs;
• Elimination of onsite hose and cable makeup and breakdown;
• Small environmental footprint;
• Weight compliant with US and Canadian road laws;
• Tubing stabbed during transport;
• Assembly and pressure-testing of BHAs up to 6 ft long prior to leaving base;
• Onsite BOP pressure testing;
• 30-min rig up, including pressure test;
• Constant checks on critical job parameters through process control;
• Automated emergency procedures for pipe slip and runaway detection and control;
• Real-time data monitoring using CoilCAT coiled tubing computer-aided treatment;
• User-friendly, ergonomic work environment.

CT SEAS Automated Offshore CT Unit

Reduce the amount of time, and number of people needed with flexible, fit-for-purpose CT unit for offshore environments.

Increased safety and efficiency

With components modularized into 10 primary skids, CT SEAS automated offshore CT unit reducestime for offshore CT operations.

Modular assembly

An ergonomically designed cabin enhances operator control while reducing personnel requirements, rig-up time, and costs. Pretested, preassembled modules make field assembly efficient and minimize the chances for human error during rig up. A reduction in the number of hydraulic connections saves time and reduces the risk of contamination. Single-bolt locking unions and other time saving devices enhance efficiency.

Safer, more efficient CT system

The CT SEAS unit is flexible, fit-for-purpose, and readily adaptable for many offshore structures,including platforms, floaters, and tension-leg platforms. The system has all the capabilities ofa conventional CT unit.

The unit is beneficial in all operations in which many runs are conducted in the same well. Typically, these operations include long postfracturing cleanouts. System design elements and improved ergonomics enhance safety and save time.

• The process control architecture allows faster, safer operations;
• Single-point control of CT, choke manifold, and pump improves safety and helps the engineer focus on the task at hand;
• Modules allow efficient transition between wells on sequential multiwell operations;
• Personnel reduction improves operational efficiency and safety;
• More efficient use of space through a modular design benefits platform operations, limits boat space requirements, and reduces the number of crane lifts.

APPLICATIONS

Offshore coiled tubing (CT) operations in demanding environments on fixed and floating facilities.

ADVANTAGES

• Increases safety and efficiency;
• Lowers operating costs;
• Reduces the number of lifts required (typically from 53 to 36);
• Reduces personnel by up to 30%;
• Reduces rig-up time;
• Reduces operating time.

FEATURES

• Usability in all CT operations;
• Ten primary skids;
• Reduced mechanical and hydraulic coupling on location;
• Preassembled and tested equipment modules and manifolds;
• Soundproofed, zoned, ATtmospheric EXplosives (ATEX) compliant hydraulic power unit;
• Modularized hydraulic connections;
• Automatic stabbing of tubing into injector head;
• Reduction in high elevation work;
• Improved pressure testing.