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The AAPG/Datapages Combined Publications Database

Showing 4,256 Results. Searched 200,626 documents.

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Kinderhook Dolomite of Sedgwick County, Kansas: DISCUSSION

R. A. Carmody

AAPG Bulletin

... as mud. In cable-tool drilling, much of the formation is churned and ground into mud by action of the bit. The few fragments remaining in the average...

1947

Estimating Fracture Length And Density Using Depletion Mapping From the Drilling Data of Infill Well Pads

Kevin Wutherich, Brian Sinosic, Erica Coenen

Unconventional Resources Technology Conference (URTEC)

.... URTeC 3863971 3 The greater the pore pressure relative to the fluid pressure while drilling, the less energy is required by the drill bit...

2023

An Improved Hydraulic Sampler for Obtaining Undisturbed Sediment Cores

D. L. Johnson, C. S. Alexander

Journal of Sedimentary Research (SEPM)

... 8 m may be reached by coring first with a large diameter tube and bit (e.g., 7.6 cm) to a depth where the strain on the anchor augers becomes too...

1976

Abstract: Continuous Isotope Logging in Real Time While Drilling (Geology Poster 26)

Martin Niemann, Jerome Breviere, Shell Feast Team

Geological Society of Malaysia (GSM)

..., as well as differences in drill bit types). Results were compared with both Isotube data and WFT/DST gas samples. Comparison of Isotube and WFT/DST data...

2011

Skewness as a Paleoenvironmental Indicator: DISCUSSION

R. R. Jordan, R. N. Benson, N. Spoljaric, T. E. Pickett

Journal of Sedimentary Research (SEPM)

... of a power auger or taken from the auger bit after drilling the last few feet of hole. Ditch samples were available from 4 rotary holes (Jb41-6, Ld12-1...

1978

Structure of Colville-Bufallo Coulee Area, Saskatchewan: DISCUSSION

Theo. A. Link

AAPG Bulletin

... into the Madison limestone and the bit dropped more than 6 feet through a hole which, no doubt, was a cavern and which was also suggestive of karst topography...

1954

A High Precision, Digital-recording Sedimentation Tower for Sands: RESEARCH-METHOD PAPER

J. K. Rigler, M. B. Collins, S. J. Williams

Journal of Sedimentary Research (SEPM)

... of 1 kilobyte (i.e., 1024 intervals), with 8 bit resolution (i.e., 1 in 255). The start of the recording sequence is set by an external trigger...

1981

On the Formation and Occurrence of Saddle Dolomite: REPLY

Bruce M. Radke, Robert L. Mathis

Journal of Sedimentary Research (SEPM)

... by Dr. Zenger to favor a term that is seemingly limited to the microscopic perspective seems a bit parochial. The liberty that we took...

1981

Procedure for Removing Heavy Minerals from Indurated Sedimentary Rocks Using Cold Hydrofluoric Acid: RESEARCH METHOD PAPER

Julie A. Roska, John J. W. Rogers

Journal of Sedimentary Research (SEPM)

... dissolution, no rock fragments should remain. If necessary, perform a final wash with oxalic acid or ammonium citrate to remove fluorides or a last bit of HF...

1990

Preliminary Drilling Phase of Mohole Project II. Summary of Coring Operations

W. R. Riedel , H. S. Ladd , J. I. Tracey, Jr. , M. N. Bramlette

AAPG Bulletin

... punch barrel was locked in the bit with the core tube projecting about 5 feet below the bit; cores were taken by forcing the barrel into the sediments...

1961

Microsampling Carbonates for Stable Isotope and Minor Element Analysis: Physical Separation of Samples on a 20 Micrometer Scale: RESEARCH METHOD PAPER

David L. Dettman , Kyger C Lohmann

Journal of Sedimentary Research (SEPM)

...-driven, x-y-z micropositioning stage is used to manipulate the sample under a stationary rotating drill bit (Fig. 1). Spatial positioning accuracy...

1995

Where is the Youth in AAPG?: DISCUSSION

Charles F. Dodge

AAPG Bulletin

.... Now a bit of advice to the AAPG. This is aimed at the individual member, because we are the AAPG, and it will be only what we make it. Here again...

1974

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