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Advanced Planning

Downhole Measurements Provided

Shipboard Personnel

Related Information:

Lab House Top/Level 7 panorama

ODP Technical Note No. 10

Thermal Data Collection and Heat Flow Recalculations for ODP Legs 101-180

Supervising Scientist: Adam Klaus

JOIDES Resolution Downhole Measurements Lab


The ODP runs the most advanced suite of routinely used downhole instruments of any scientific project in the world today. These tools change frequently and rapidly in terms of design and capabilities, and downhole tools specialists sailing on the
JOIDES Resolution are often confronted with a bewildering array of instruments and proceedures. With the short time available between establishment of the ship schedule and the start of individual legs, shipboard scientists often do not have access to instruments or even manuals, prior to sailing. The purpose of this page is to provide contact with the people involved in the planning of downhole tool deployment and to give brief descriptions of key aspects of those tools. For many of the ODP downhole tools, fully detailed operating instructions written by the tool designers or manufacturers are available at ODP and on board the JOIDES Resolution, and will only be briefly summarized here. Factors that are important in planning and conducting measurements are discussed in ODP Technical Note No. 10..

"ODP" will be used to refer to the ODP Science Operator at Texas A&M University (TAMU), and "LDEO", will refer to the ODP Logging Contractor, Lamont-Doherty Earth Observatory. ODP and LDEO divide responsibilities for downhole tools in a general way as follows: LDEO is responsible for providing logs measured with tools run on the seven-conductor logging cable (or "wireline"), whereas ODP is responsible for those tools used with the drill string and/or the nonconducting coring line (or "sandline").

Advanced Planning

It is important to understand that just because a measurement is called "routine" does not mean that it can be made under all circumstances or without significant preparation by ODP technical support staff. Successful use of all downhole tools generally requires some warning prior to sailing, to make sure that proper supplies are available, and to undertake training of scientific and technical personell. To ensure successful use of specific ODP downhole tools on a particular leg, it is advisable to start planning at least one year pre-cruise, and it is essential to keep two organizations fully informed: ODP itself, and the JOIDES panel structure via the Downhole Measurements Panel (DMP).

Downhole Measurements Provided by ODP

Fluid Sampling

Formation Temperature Measurements

Orientation of APC and RCB Cores
Long-term Observatories (CORK)

Pressure Core Sampler (PCS)

Permiability Measurements Using Packers

Shipboard Personnel

Please see the
Science Services Staff Directory or leg-specific Scientific Prospectus for upcoming leg staffing.

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Modified on Tuesday, 03-Dec-2002 15:28:41 CST.