• PETRO-CLAIM™

    As oil-based muds are re-used from well to well, a build-up of Ultrafine Low Gravity Solids (LGS) occurs in drilling fluid systems. This build-up causes an increase in mud viscosity which can lead to reduced Rate of Penetration (ROP) and solids removal efficiency. In many cases, the only option is the additional cost to dilute or dispose of this spent fluid. The NOV PETRO-CLAIM recovers base oil from spent oil-based mud onsite for reuse in the mud system, without the use of expensive chemicals.
    Description

    EFFECTIVELY RECOVERING BASE OIL FROM SPENT OIL-BASED MUD


    As oil-based muds are re-used from well to well, a build-up of Ultrafine Low Gravity Solids (LGS) occurs in drilling fluid systems. This build-up causes an increase in mud viscosity which can lead to reduced Rate of Penetration (ROP) and solids removal efficiency. In many cases, the only option is the additional cost to dilute or dispose of this spent fluid. The NOV PETRO-CLAIM recovers base oil from spent oil-based mud onsite for reuse in the mud system, without the use of expensive chemicals.

    The PETRO-CLAIM uses electrokinetics to effectively separate the ultrafine drilled solids out of oil-based mud (OBM) and recover valuable base oil. Using proprietary coated electrodes, the PETRO-CLAIM applies a low power electrical field to the OBM, destabilizing the molecular bonds between the solids and the oil. Through the destabilization process, the solids and water settle out as a result of gravity, and the PETRO-CLAIM automatically recovers the oil. The result is a clear and clean base oil – free of solids and water – resulting in significant savings in mud dilution and waste disposal costs.

    The PETRO-CLAIM is a proven, cost effective on-site approach to removing colloidal and ultrafine LGS of less than 6 microns (too fine for removal by traditional solids control equipment). No other treatment works as efficiently or as effectively, and unlike competitors’ systems that use heat or chemical approaches, the PETRO-CLAIM doesn’t dilute the fluid or alter the original properties of the base oil, which means once it leaves the PETRO-CLAIM, it’s ready for reuse.

    The PETRO-CLAIM is installed on a compact, rugged portable DNV 2.71 designed skid for easy set up. The Class I Div 1 PETRO-CLAIM is suitable for use on land and offshore. It uses no consumables and requires less than 100 kW of electricity to operate.
    Uses:
    • As a piece of solids control equipment downstream of a centrifuge to further remove ultrafine low gravity solids smaller than 6 microns.
    • Process solids laden cuttings dryer effluent rather than sending to a centrifuge or directly to the mud system.
    • Process waste oil-based mud, recovering expensive base oil for reuse rather than disposal.
    • Reduce excess fluid volume at the rig site or central mud plant.
    • Inventory management and recycling at mud plant.
    • Recover oil at the waste disposal facility.

    Features/Benefits

    FEATURES

    BENEFITS

    Integrated pumps built into skid

    Easy to use

    Easy installation with winch truck, forklift or crane

    Rapid mobilization and installation

    Remote telemetry (optional)

    Allows the PETRO-CLAIM to be operated from anywhere

    High Torque Electrode Wiper Assembly

    Keeps the PETRO-CLAIM clean

    Low energy use (1-2 kW/m3 of fluid processed)

    Economical energy cost of operation

    No consumables

    No associated consumable parts costs 

    No chemicals required 

    Ensures safety and oil suitable for reuse 

    Multidirectional screw auger and progressive cavity pump  

    Non-plugging unloading  

    Non-sacrificial electrodes with proprietary coating  

    Low operating costs  

    Electro-separation  

    Removes colloidals and ultrafine solids smaller than 6 microns. No chemicals required  

    Nitrogen Purge System  

    Prevents oxidation and scale formation  

    Low level/high temperature oil shut down switch. Low cell pressure and high pump pressure automatic shutdowns.  

    Ensure safety  

    Easy, one-man operation 

    No additional manpower required 

    Works on all oil-based mud types 

    Increased flexibility 

    Integrated spill containment 

    Environmental compliance 

    Wireless performance monitoring 

    Ease of monitoring 

    Specifications

    MODEL 

    3 m3

    6 m3

    10 m3

    Dimensions (L x W x H)*

    22 ft x 7.5 ft x 9.5 ft

    (6.7 m x 2.3 m x 2.9 m)

    30 ft x 7.5 ft x 9.5 ft

    (9.1 m x 2.3 m x 2.9 m)

    40 ft x 7.5 ft x 9.5 ft

    (12.2 m x 2.3 m x 2.9 m)

    Weight*

    25,000 lbs (11,300 kg)

    45,000 lbs (20,400 kg) 

    60,000 lbs (27,200 kg) 

    Processing Capacity*

    95 bbl/day (15 m3)

    190 bbl/day (30 m3

    315 bbl/day (50 m3

    Power Requirement

    480 V, 100 A, 3 Ph

    480 V, 100 A, 3 Ph

    480 V, 200 A, 3 Ph 

    *Approximate specifications. For more information please contact your local NOV WellSite Services representative.