Cedar Strat offers an operator a complimentary study of its well or another Cedar Strat well study of similar depth in exchange for a set of cuttings, logs, and data from the operator's current well.

Well Study Deliverables ( What Cedar Strat offers )

• Geologic log at 1 inch : 100 feet generated with RockWare's® LogPlot 2003™ program
• Drill stem tests
• Lithologic column and formation tops
• Structural attitudes ( dips )
• Indications of fault cuts and major unconformities
• Gamma ray curve
• Observed oil and gas shows
• Lost circulation
• Other information that may be discovered

Special sampling intervals ( e.g., micropaleontological ) are graphically indicated along with text notations.

Lithologic interpretations are based on available sample descriptions ( e.g., mudlogs and wellsite strip logs ), together with some additional cuttings examination along with petrophysical interpretation of wireline logs.

Interested operators may be granted limited access to Cedar Strat Corp.'s repository of outcrop samples. The samples are drawn from Cedar Strat's million-foot database of Great Basin measured sections. Also included are samples from many Great Basin wells.

Why Do A Well Study? -- Improved accuracy in lithology & formation boundaries

Minimize descriptive errors

Geological logs based soley on sample description are often highly inaccurate in terms of stratal resolution and depths, even taking drill-time into account. They are often inaccurate in terms of lithology also, with dolomite frequently logged as limestone and visa versa, and thinner beds of alternating lithologies go unobserved. Sandy, cherty, siliceous, silty, organic, and argillaceous components are frequently missed or not noted in descriptions but yet are detectable on wireline logs.

Increase stratal resolution through wireline surveys

Petrophysical interpretation using gamma ray, neutron-density, sonic, and other wireline surveys is necessary for a reasonably accurate log, especially through lost circulation intervals in which there were no sample recoveries.

Uphole cavings often camouflage or strongly dilute true cuttings samples from the bottom of the borehole. Sample lag problems are often far worse than theoretically expected, with errors commonly on the order of 20 to 50 feet.

Thus, wireline logs help immensely in lithologic interpretation and in accurately positioning stratigraphic surfaces and formation boundaries.

Assess source rock maturation

Palynomorph analysis provides data on source rock maturation, richness, and kerogen type, and depositional environment that is incorporated into source rock studies such as Cedar Strat's Mississippian Source Rock Study.

Cedar Strat identified the Nevada Oil and Gas Fairway as a result of the Mississippian source rock study.

Paleontological data, especially micropaleontological data ( eg., Palynology ), are also helpful in making correlations and pinpointing formation boundaries.

Well Study Receivables ( What Cedar Strat Needs )

• Split of samples
• dried
• sealed in standard labeled manila envelopes ( same as what is sent to the state, drilling partners, and the well operator )
• standard 30 foot samples from near surface down to where drilling slows and collecting of 10 foot samples commences
• standard 10 foot samples from point of drilling slowdown until Total Depth, unless the wellsite geologist or the operator needs to space samples at some other interval
• available the earlier of termination of proprietarty period ( e.g., 6 months after reaching TD ) or after recovery when transferral is covered by a confidentiality agreement
• Copy of:
• wireline logs for petrophysical interpretation ( digital preferred, paper acceptable )
• mudlog
• wellsite geologist's report and strip log
• drill stem test results not conducted by Cedar Strat
• core description

Confidentiality Agreement

Cedar Strat will sign a confidentiality agreement that is satisfactory to all parties to protect an operator's interest during a proprietary period.

Offer To Share Information

Contact Cedar Strat with your offer to share information about your well or wells. Tell us where your well or wells are located in your contact offer.