Changes

*  Casing points

*  Casing points

*  [[Drilling problems]]

*  [[Drilling problems]]

 

** Sloughing shales

<list-item>Sloughing shales</list-item><list-item>Swelling shales</list-item><list-item>Salt beds</list-item><list-item>Faults</list-item><list-item>High angle beds</list-item><list-item>Lost circulation zones (e.g., fractures, excessive mud weight)</list-item>

** Swelling shales

** Salt beds

** Faults

** High angle beds

** Lost circulation zones (e.g., fractures, excessive mud weight)

===Communications for operators and partners===

===Communications for operators and partners===

*  Mud logging

*  Mud logging

 

** Crew size and services to be provided

<list-item>Crew size and services to be provided</list-item><list-item>Number of sets of each type of sample -wet

** Number of sets of each type of sample

 

***wet

<list-item>- dry</list-item><list-item>- geochemical</list-item><list-item>- paleontological</list-item></list-item><list-item>Pressurized unit</list-item><list-item>Hot wire or flame ionization detection (FID) chromatograph</list-item><list-item>Bit dulling plot</list-item><list-item>Overpressure plot</list-item><list-item>[[Rate of penetration]] (ROP), weight on bit (WOB), pump pressure (PP), revolutions per minute (RPM), and bit data</list-item><list-item>Mud data</list-item><list-item>Pit volume monitors</list-item><list-item>Special analyses

 

***geochemical

<list-item>- ion tracing</list-item><list-item>- radioactive monitoring</list-item><list-item>- shale densities</list-item><list-item>- d and dc exponent</list-item><list-item>- hydrogen sulfide (H₂S) detectors</list-item></list-item><list-item>CRT displays on rig floor, company representative's office</list-item>

***paleontological

**Pressurized unit

** Hot wire or flame ionization detection (FID) chromatograph

** Bit dulling plot

** Overpressure plot

** [[Rate of penetration]] (ROP), weight on bit (WOB), pump pressure (PP), revolutions per minute (RPM), and bit data

** Mud data

** Pit volume monitors

** Special analyses

*** ion tracing

*** radioactive monitoring

*** shale densities

*** d and dc exponent

*** hydrogen sulfide (H₂S) detectors

** CRT displays on rig floor, company representative's office

*  Electric logging

*  Electric logging

 

** Big, regular, or slim hole tools

<list-item>Big, regular, or slim hole tools</list-item><list-item>Temperature requirements</list-item><list-item>Fresh, salt, or oil mud tools</list-item><list-item>Tool combinations and order of logging runs (usually gamma ray, deep resistivity, [[porosity]], sonic, pad-type resistivity, dipmeter, checkshot survey, and sidewall cores)</list-item><list-item>Backup tools</list-item><list-item>Calibration, both at surface (before and after logging) and downhole</list-item><list-item>Repeat and overlap sections</list-item><list-item>Scales</list-item><list-item>Check shot survey points (determined after first logging run)</list-item><list-item>Bottom hole temperature (BHT) with each tool</list-item><list-item>Maximum logging speeds</list-item><list-item>Magnetic tape requirements (e.g., 800 or 1600 bpi)</list-item><list-item>Display format</list-item>

** Temperature requirements

** Fresh, salt, or oil mud tools

** Tool combinations and order of logging runs (usually gamma ray, deep resistivity, [[porosity]], sonic, pad-type resistivity, dipmeter, checkshot survey, and sidewall cores)

** Backup tools

** Calibration, both at surface (before and after logging) and downhole

** Repeat and overlap sections

** Scales

** Check shot survey points (determined after first logging run)

** Bottom hole temperature (BHT) with each tool

** Maximum logging speeds

** Magnetic tape requirements (e.g., 800 or 1600 bpi)

** Display format

*  Fluid samples

*  Fluid samples

 

** Repeat formation test (RFT) and drill stem test (DST)

<list-item>Repeat formation test (RFT) and drill stem test (DST)

*** Interval(s)

 

*** Packer seats

<list-item>- Interval(s)</list-item><list-item>- Packer seats</list-item><list-item>- Sampling method</list-item></list-item>

*** Sampling method

*  Coring

*  Coring

 

** Conventional, wireline, and/or sidewall

<list-item>Conventional, wireline, and/or sidewall

*** Formations automatically cored?

 

***Core on show?

<list-item>- Formations automatically cored?</list-item><list-item>- Core on show?</list-item><list-item>- [[Core handling]] procedures</list-item></list-item>

***[[Core handling]] procedures

===Data distribution===

===Data distribution===

*  Types of data

*  Types of data

 

** Drilling records (e.g., bit record, geolograph charts)

<list-item>Drilling records (e.g., bit record, geolograph charts)</list-item><list-item>Mudlogs and mudlog records</list-item><list-item>Electric logs</list-item><list-item>Core and/or cuttings (wet and/or dry)</list-item><list-item>Fluid samples</list-item><list-item>Pressure charts</list-item><list-item>Laboratory analyses

** Mudlogs and mudlog records

 

** Electric logs

<list-item>- cuttings</list-item><list-item>- cores</list-item><list-item>- biostratigraphic</list-item><list-item>- geochemical</list-item><list-item>- fluid properties</list-item></list-item>

** Core and/or cuttings (wet and/or dry)

** Fluid samples

** Pressure charts

** Laboratory analyses

*** cores

*** biostratigraphic

*** geochemical

*** fluid properties

*  Number of copies of each type of data for

*  Number of copies of each type of data for

 

** Division office

<list-item>Division office</list-item><list-item>Headquarters office</list-item><list-item>Partners</list-item><list-item>Federal and state agencies</list-item><list-item>Wellsite copies</list-item><list-item>Geologist and geophysicist</list-item><list-item>Drilling engineer</list-item><list-item>Reservoir engineer</list-item>

** Headquarters office

** Partners

** Federal and state agencies

** Wellsite copies

** Geologist and geophysicist

** Drilling engineer

** Reservoir engineer

===Sources of data for well planning===

===Sources of data for well planning===

*  Offset wells

*  Offset wells

 

** wireline logs

<list-item>wireline logs</list-item><list-item>mudlogs</list-item><list-item>daily drilling reports</list-item><list-item>velocity surveys</list-item><list-item>bit records</list-item><list-item>scout tickets</list-item><list-item>[[paleontology]] and geochemistry reports</list-item><list-item>production data</list-item>

** mudlogs

** daily drilling reports

** velocity surveys

** bit records

** scout tickets

** [[paleontology]] and geochemistry reports

** production data

*  State agencies (e.g., Railroad Commission in Texas)

*  State agencies (e.g., Railroad Commission in Texas)

*  Industry libraries (e.g., Petroleum Information [PI], Dwights)

*  Industry libraries (e.g., Petroleum Information [PI], Dwights)

==See also==

==See also==

* [[Introduction to wellsite methods]]

* [[Introduction to wellsite methods]]

* [[Wellbore trajectory]]

* [[Wellbore trajectory]]

* [[Rig personnel]]

* [[Rig personnel]]

* [[Wellsite math]]

* [[Wellsite math]]

* [[Mudlogging: Equipment, services, and personnel]]

* [[Mudlogging: Equipment, services, and personnel]]

* [[Wellsite safety]]

* [[Wellsite safety]]

* [[Offshore rigs]]

* [[Offshore rigs]]

==External links==

==External links==