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Mud Logging unit, mud logging cabin

Since its commercial introduction in 1939, the mud logging unit has become a hub for monitoring formation responses to the drilling process. Initially, the mud logger's mandate was to record the depth and describe the lithology of formations encountered by the drill bit then determine whether those formations contained hydrocarbons. However, the scope of mud logging has expanded as additional sensors brought more data into the logging unit—such as gas chromatographs, weight-on-bit and mud pit level indicators. Basic mud logging services now typically track drilling rates, lithology, visual hydrocarbon indicators, total combustible gas in mud and individual hydrocarbon compounds in the gas along with numerous drilling parameters. The mud logger monitors and evaluates a broad range of surface indicators to compile a concise record of subsurface geology, hydrocarbons encountered and significant drilling events. These days, the term surface logging is sometimes used to encompass a range of enhanced mud logging services that incorporate advanced sensor and computing technology to provide monitoring for wellbore stability and early kick detection.
The practice of mud logging relies heavily on the mud circulation system. High-pressure mud pumps draw mud, or drilling fluid, from surface tanks and direct it downhole through the drillpipe. The mud exits the drill string through nozzles in the bit. As a bit drills through the subsurface, the rock it grinds—along with water, oil or gas in the formation—is carried back up the hole by the drilling fluid. Upon reaching the surface, the fluid exits through a flowline above the blowout preventer and is deposited over a vibrating mesh screen at the shale shaker, which separates formation cuttings from the liquid mud. The liquid portion of the drilling fluid falls through the screens to the mud pits, ready to be pumped back into the well; the rock cuttings on the shaker screen provide the basis for determining downhole lithology.
 
​Main specifications:

• Certification standards: DNV2.7-1 / EN12079
• Fire-protection rating: A0, or A60
• Zone 1 / zone 2
• Input voltage: 3P3W 220/380/440/480 V
• Maximum power: 30KVA
• Positive pressure ventilation time T1:> 10Min (0 ~ 30Min adjustable)
• Low voltage delay cut off power supply T2:> 30S (0 ~ 10Min adjustable)
• Outlet automatic shut off temperature: 70 ± 2 ℃
• Combustible gas secondary alarm: ≥ 20% LEL
• Combustible gas first level alarm (cut off power): ≥ 50% LEL
• Toxic gas secondary alarm: ≥ 10ppm
• Toxic gas first level alarm (cut off power): ≥ 20ppm
• Cut off power Temperature: ≥ 60 ℃
• Internal pressure with positive pressure status : 60 ~ 120Pa

 20ft Mud Logging cabin standard specifications
 
Description: A60 rated, Zone1/zone 2 cabin (for offshore application)                                                                           
External dimension: 6058*2438*2591mm (L*W*H)
Structural Rating: DNV 2.7-1/ EN12079
Hazardous Area Classification: Zone1 / zone 2
 
Designed, manufactured, and certified as per DNV 2.7-1 standard, IEC60079-13

• A60 Rated, Conforming to Zone1 & Zone 2,
• Fire, Gas, and Smoke Safety System are included
• Fire and Gas Detectors are included,
• Fume Hood and Sink are included.
• H2S Detector is included.
• Four-legged sling set (Type: Steel Ferrule)

 
Fire Rating: Walls, roof and floor will be insulated to A60 rating.

• Internal roof will be finished using 0.7 mm thick powder coated GI sheet
• Wall finish will be using 25mm thick sandwich panel
• 2mm thick vinyl mat flooring with100mm high PVC skinning for floor finish
• Single leaf door 950x 2000 mm- 1 no.
• Window with safety grid -1 no.
• Emergency exit hatch -1 no.
• B15 internal air lock door - 1 no.
• Drain line for the sink to outside the cabin
• Water source line with valve to the sink with valve below the sink as well.

 
Electrical:

• 20KVA Transformer with range 380-415-440-460-480-690 3phase suitable for 50/60Hz.
• Electrical and HVAC panel - 1 no.
• Surface mounted fluorescent lighting
• Bulkhead light - 1 no.
• Emergency exit light- 2 nos.
• Switch- 2 nos.
• Sockets 220V - TBA
• Safety switches 40A 3pole/Main isolator - 1 no.
• MCT (S6x1) spare for client purpose - 1 no.
• Necessary cabling. PVC trunk, cable trays, MCT and earthing considered.
• All Explosion proofs

 
Air Conditioning:

• 1 no. x24000 BTU/Hr split type Air conditioning,  
• Outdoor condenser fans, suitable for Hazardous area application is included in the offer
• Evaporator and condenser coil constructed from copper robe and Aluminum fins.

               
Detection and Alarm system: 
1 no. Combined Pressurization on Fire and Gas (CPFG) detection panel for Zone1. System includes gas detection for H2S and CH4, smoke detection MAC, emergency stop push button, Pressurization fan, loss of pressure alarm, flow switch, pressure switch, solenoid valve and all piping and cabling.
                               
Telephone/PA/speakers/data:

• PA speaker- 1 no.
• Telephone- 1 no.
• JB for Telephone - 1 no.
• Necessary trunking and cabling shall be provided for the above fixtures

                               
Furniture:

• L shaped Top stone finished desktop- 1 no.
• MDF drawers- 4 nos.
• Wall mounted MDF cabinets- 3 nos.
• Leather Chair with Armrest - 2 nos.
• Stainless single bowl sink with mixer tap- 1 no. (water source from outside the cabin with valve)
• One mini bar
• One Kettle
• CO2 portable handheld fire extinguisher - 1 no.
• Any other furniture other than specified above is not included.
• Chemical Storage cabin in the Top & below the bench

 
Finish Paint:

• All steelwork blasted to SA 2.5 and painted Offshore standard 3 coat marine painting system.
• Clients logo as per Clients Specs

 
Certification:
All products are produced to international standards meaning they are fit for the Purpose and meet your quality requirements.
The following certification Standards apply:

• Designed and Built to DNV2.7-1
• ISO1496/CSC
• Product Standard / Approval l All quoted products ISO9001:2015
• All quoted products ISO 14001:2015
• Certification included with proposal Type approval CSC-International
• Type Approval SOLAS A60
• Copies of the certificates are required Slings, shackles, bars and pad eyes
• Each offshore Mud cabin will be equipped with 4 lifting pad eyes and slings with shackles, fully certified with identification plate showing maximum load. date of inspection. certification

 
Lifting Set: Sling Wire Rope Steel/Galvanized 4 legs / with master link assembly. Legs ending in thimble eye Flemish spliced with steel ferrules. Certified in line with DNV 2.7 -1
 
Warranty: One year

Please contact sales@tls-containers.com for inquires. 

​TLS offshore pressurised containers are designed, manufactured and tested in accordance with requirements of the following latest editions standards and regulations.

• DNV2.7-1 - Offshore containers (optional inspection third party from BV, DNV or LRs)
• IEC 60079-13:2017 - design, construction, assessment, verification and marking of rooms used to protect internal equipment (certificate of conformity from third party) (BV certificate of conformity, DNV certificate of conformity, CCS certificate of conformity)
• IECEx, ATEX
• A0, A60, or A120 fire rating (certificate of conformity from third party) (BV certificate of conformity, DNV certificate of conformity, CCS certificate of conformity)
• Zone 1 / Zone 2 rated (certificate of conformity from third party) (BV certificate of conformity, DNV certificate of conformity, CCS certificate of conformity)
• EN 12079 - Offshore containers - Design, construction, testing, inspection marking.
• ISO 668 - Onshore ISO containers - Design, construction, testing, inspection marking. (optional for onshore container application)
• ISO 1161 - Specification of corner fittings for series 1 freight containers.
• CSC - International convention for safe containers
• Certificate of conformity from third party (DNV or BV) for A60, Zone 1 / Zone 2, SOLAS and IEC60079-13 (BV certificate of conformity, DNV certificate of conformity, CCS certificate of conformity)
• Supplied offshore containers are marked for offshore use and complete with full material trace report, load test and NDT Certificates, and DNV 2.7.1 certification/EN 12079.

Applications

• MUD logging unit | mud logging cabin
• MWD cabin / LWD cabin
• ROV control cabin / container
• Pressurised Living quarters / accommodation cabin
• Office cabin (positively pressurised)
• Storage cabin | Workshop cabin
• Operating room | control cabin
• Laboratory cabin​ (Negatively pressurised or positively pressurised, Ex-proof)
• Telecommunication cabin
• Pressurised engine cabin | enclosure in hazardous zones (zone 1 or zone 2)
• ​ATEX pressurized container, Ex-proof cabin | enclosure
• Motor control centre (MCC) pressurized shelter | MCC enclosure
• Power control centre (PCC) pressurized shelter | enclosure | container
• Variable speed driver (VSD) pressurized shelter | enclosure | container
• Switchgear pressurized enclosure | container
• Variable Frequency Drive (VFD) pressurized shelter | enclosure / container
• Diesel generator (DG) set container | pressurised DG enclosure for the usage in hazardous zones

Please contact sales@tls-containers.com for any inquires. 

Our office containers are manufactured in house to meet the highest industry standards. All units are designed to optimize workspace efficiency, meet environment and acoustic requirements, and house your specialist equipment and resources in a safe and comfortable environment. Our Office containers can be outfitted and modified to perform any number of functions to suit your specific project requirements. These functional containers provide a high quality for clients.

Features and benefits

• Detection and alarm system with Combined Pressurization, Fire and Gas detection (CPFG) system with all ancillary items for Zone 1 / zone 2 usage
• Includes H2S and CH4 gas detection, smoke detection, manual call point, pressurization fan, loss of pressure and flow devices.
• 2 split type HVAC systems
• A60 Fire Dampers.
• A60 window and A60 escape hatch (800mm x 800mm) 
• Optional sprinkler head and piping can easily be connected to rig sprinkler system.
• Fitted with non-combustible B15 wall panels to ensure high thermal resistance and maximum noise reduction.
• CSC frame for minimized mobilization costs
• Easy access to all serviceable equipment for maintenance.
• CO2 dry powder fire extinguisher provided.
• Non-porous epoxy desktop, easy to clean, stain resistant and impermeable to most chemicals.

 
Technical specifications

• Fire Rating: A60 SOLAS
• HVAC: 2 x 18,000 BTU Split Units – duty and standby
• Detection and Alarm System: Connection to main Rig / Vessel Alarm System included
• Framework Design Temperature: -20°C to +50°C

 
Electrical Connection
Connection is 380-690Vac, 3Ph+E, 50/60Hz. Module is supplied with a 30m power cable as standard.
 
Global compliance
ATEX, IECEx, CSC, EN 12079, DNV 2.7-1, A60 SOLAS