Fault Seal Analysis TERRASCIENCES What is Fault

Fault Seal Analysis TERRASCIENCES

What is Fault Seal Analysis? The study of the likelihood of a fault to allow fluids to move across the fault plane (leak) or not (seal). TERRASCIENCES

Where should Fault Seal Analysis be applied? n n Depositional environments with synsedimentary normal faulting - deltaic environments. E. g. Nigeria, Gulf Coast, North Sea. Other areas where faulting through plastic/nonplastic lithology combinations may impact fluid movement. TERRASCIENCES

Who needs faults seal analysis ? Production Geologists. n Production Engineers. n TERRASCIENCES

Technical details. . . Utilizes sand/shale identifier curve (eg. GR). Can analyze single or multiple displacements. TERRASCIENCES

Key Benefits n Provide insight into likelihood of fault seal or leak within the field under development. n Needs no seismic data. n Provides several different algorithms. – Smear Gouge Analysis – Clay Smear Potential – Smear Gouge Ratio – Shale Gouge Ratio – Smear Factor TERRASCIENCES

Smear Gouge Analysis n n n Allows entry of most likely reservoir thickness. Uses a range of fault displacements. Graphs displacement against Smear Gouge Ratio for Cross Seal Ru, Dip Seal Ru, Cross Seal Rd, and Dip Seal Rd. TERRASCIENCES

Smear Gouge Analysis display. TERRASCIENCES

Clay Smear Potential n n n Allows differentiation between hard and soft shales. User specified fault throw. User definable “leak/seal” threshold value. Computes “smearing potential” curve. Computes “leak/seal” indicator curve. TERRASCIENCES

Clay Smear display TERRASCIENCES

Additional benefits Can be added on to Terra. Station II to allow: n n Multiple well analysis. Study of data in a regional context. Mapping. Complex sand/shale determination. TERRASCIENCES

How to buy Fault Seal. Contact any TERRASCIENCES office. n Ask for “Sales”. n Tell them you want to buy or rent the Fault Seal Analysis module. n TERRASCIENCES

TERRASCIENCES Contacts: TERRASCIENCES, Inc 5629 FM 1960 West, Suite 312, Houston, TX 77069 Tel: (281) 893 5117 TERRASCIENCES Ltd Palace Chambers, 41 London Road, Stroud, Glouc. , UK GL 5 2 AJ Tel: (01453) 767683 email: sales@terrasciences. com http: //www. terrasciences. com TERRASCIENCES

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