安全且高效的射孔枪系统，斯伦贝谢是怎么做到的？

Plug-in system efficiency paired with full-visibility perforating
The Tempo* instrumented docking perforating gun system is the industry’s first perforating gun system to fully integrate an innovatively designed plug-in gun that significantly simplifies assembly, arming, and firing with real-time advanced downhole measurements for monitoring and confirming operations to mitigate risk while increasing safety, reliability, and efficiency.

New gun design for improved perforating outcomes
Proprietary docking components are the key element of the Tempo gun system’s plug-in design. They simplify assembly and eliminate the major causes of perforating misfires: technique-sensitive crimping and wiring. Gun design is further streamlined with fewer seals and reduced lengths, which in turn maximizes the usable gun string length that can be deployed.
Both single and selective guns can be armed offline in significantly less time than required for conventional systems to further improve safety and operational efficiency.

With its engineered controls and integrated measurement capabilities, the Tempo gun system provides the highest level of safety in compliance with API RP 67 Group 2 specifications, with RF protection verified by an independent third-party organization (ITPO). RF silence requirements are eliminated in almost all use cases.

Integrated measurements for real-time insight
By incorporating advanced perforating measurements capability, the Tempo gun system delivers a complete suite of real-time, simultaneously acquired data that are critical for verifying and optimizing perforating design and execution. The ruggedized measurement technology obtains pressure, temperature, CCL, and optional gamma ray before, during, and after perforating without the need for a shock absorber in the compact design.

For PURE* clean perforations system, P3* post-perforating treatment, and propellant treatments, the Tempo system measures the dynamic pressure and transmits the data within seconds after firing. The Tempo system also accurately records peak shock to help validate gun shock modeling and optimize future operations.

APPLICATIONS
■ Hollow carrier perforating gun systems
■ Single or selective perforating applications with up to 40 guns in a single descent
■ Advanced measurements throughout perforating
■ Confirmation of dynamic underbalance and peak shock while perforating

BENEFITS
■ Radio frequency (RF) safe per API RP 67 Group 2 specifications means that wellsite operations can continue uninterrupted during perforating operations in most use cases
■ RF-safe capability enables arming in advance to improve operational efficiency and save rig time
■ Simplified system design significantly minimizes the potential for human error during assembly to increase reliability and eliminate perforating misfires
■ Gun arming time for single and selective guns is greatly reduced in comparison with conventional gun systems
■ Shorter gun lengths support deploying extreme-length gun strings
■ Integrity of the system can be fully checked at surface and while running in hole
■ Precise depth control is ensured by correlation using both gamma ray and casing collar locator (CCL) in standard and chrome tubulars for diameters up to 95/8 in
■ Fast, accurate pressure measurement verifies the dynamic underbalance for delivering clean perforations

FEATURES
■ Compatible with both deep penetrating and big hole shaped charges
■ Compatible with PURE clean perforations system and P3 post-perforating treatment
■ Ruggedized sensor and electronics package to withstand repeated gun shock
■ Powered CCL measurement
■ Wireline, pumpdown, e-coil, or tractor conveyance
■ Applications up to 340 degF

Case Study

Engineered docking design cuts arming time by more than half and increases operational safety, reliability, and efficiency

Challenge: Improve the efficiency of multizone perforating operations in deep wells.

Solution: Deploy Tempo instrumented docking perforating gun system, which features a safety- and efficiency-enhancing plug-in design with integrated measurements capability.

Result: Saved significant operational time by arming perforating guns in less than half the previously required time and conducting early downhole verification of system integrity.

Perforating challenges in completing deep wells
Badr El Din Petroleum Company (Bapetco), a joint venture between Shell Egypt and the Egyptian General Petroleum Corporation, wanted to improve the efficiency of multizone perforating operations in deep wells in the Western Desert. Whether single or selective conventional perforating gun systems were used, significant operational time was required to assemble and arm the guns, and the integrity of the system could not always be verified until it was conveyed to perforating depth. In these deep land wells, any connection failures that could not be diagnosed until the gun was at depth caused lengthy operational downtime by requiring return to surface to be remedied. The risks posed to personnel in retrieving the live guns were also a major concern for Bapetco.

Innovative perforating system design for increased safety, reliability, and efficiency
Schlumberger recommended using the new Tempo instrumented docking perforating gun system to streamline deployment and support operational safety. This compact gun system enables running up to 40 guns for selective initiation to efficiently perforate multiple reservoir zones with a maximized explosives payload in a single trip in the well. The plug-in design simplifies the arming process to increase safety and reliability by eliminating the variability introduced by the wellsite crimping and wiring required for conventional gun systems. Onboard diagnostics are used to check Tempo system’s integrity at surface, before connecting to the wireline cable head and running in hole. A confirmation check can then be conducted once the guns are at least 200 ft below ground level, instead of requiring the guns to be at the target perforating depth.