USER GUIDE FOR THE COMMON DAILY DRILLING REPORT SYSTEM
(CDRS)
Report number: OD-95-30
Petroleum Safety Authority (PSA) Page 1 of 62CONTENT:
1.DAILY DRILLING REPORT SYSTEM (CDRS) introduction
2.DRILLING PROGRAM
2.1PROGRAM part I - Basic well
2.2PROGRAM part II - Estimated/planned well
2.2.1PROGRAM PART II a) - Planned mud type
2.2.2PROGRAM part II b) - Estimated/planned mud/pore pressure
2.2.3PROGRAM part II c) - Estimated fracture gradient
2.2.4PROGRAM part II d) - Planned casing string
2.2.5PROGRAM part II e) - Planned phase
2.2.6PROGRAM part II f) - Planned directional
2.2.7PROGRAM part II g) – Registration number
2.3PROGRAM part III - Prognozed zonation
3.DAILY REPORT
3.1REPORT part I - Basic information
3.1.1REPORT part I a) - Well classification
3.1.2REPORT part I b) - Operator
3.1.3REPORT part I c) - Contractor
3.1.4REPORT part I d) - Rig
3.2REPORT part II - Status
3.3REPORT part III - Mud/pore pressure
3.4REPORT part IV - Present operation
3.5REPORT part V - Survey
3.6REPORT part VI - Operation/mode
3.6.1Legal values for main operation and sub operation
3.6.1.1MOVING
3.6.1.2DRILLING
3.6.1.3FORMATION EVAL
3.6.1.4COMPLETION
3.6.1.5WORKOVER
3.6.1.6PLUG & ABANDON
3.6.1.7INTERRUPTION
3.6.2Legal values for sub modes
3.6.2.1Example of using sub modes
3.7REPORT part VII - Log
3.8REPORT part VIII - Core
3.9REPORT part IX - Well test
3.10REPORT part X - RFT test
3.11REPORT part XI - Weather
3.12REPORT part XII - Remarks
3.13REPORT part XIII - Lithology
3.14REPORT part XIV - Equipment fail
3.14.1Legal values for main and sub equipment system
3.14.1.1DRILLFLOOR EQU/SYST
3.14.1.2HOISTING EQUIPMENT
3.14.1.3PIPE HANDLING EQU/SYST
3.14.1.4MUD AND BULK SYSTEMS
3.14.1.5WELL CONTROL EQU/SYST
3.14.1.6DRILLSTRING/DOWNHOLE EQU
3.14.1.7SERVICE EQU/SYST
3.14.1.8MATERIAL HANDLING SYSTEM
3.14.1.9MISCELLANEOUS EQU/SYST
3.15REPORT part XV - Kick
3.16REPORT part XVI - Preliminary zonation
3.17REPORT part XVII - Perforation intervals
4.CDRS TRANSACTION FILE
4.1Transaction file layout
4.1.1Well reference layout
4.1.2Field separator and continuation indicator
4.1.3Date format
4.2Start of file
4.2.1PROGRAM Part I - Basic Well
4.2.2PROGRAM Part II - Estimated/planned well
4.2.2.1PROGRAM Part II a) - Planned mud type
4.2.2.2PROGRAM Part II b) - Estimated/planned mud/pore pressure
4.2.2.3PROGRAM Part II c) - Estimated fracture gradient
4.2.2.4PROGRAM Part II d) - Planned casing string
4.2.2.5PROGRAM Part II e) - Planned phase
4.2.2.6PROGRAM Part II f) - Planned directional
4.2.2.7PROGRAM Part II g – Registration number
4.2.3PROGRAM part III - Prognozed zonation
4.2.4REPORT part I - Basic information
4.2.4.1REPORT part I a) - Well classification
4.2.4.2REPORT part I b) - Operator
4.2.4.3REPORT part I c) - Contractor
4.2.4.4REPORT part I d) - Rig
4.2.5REPORT Part II - Status
4.2.6REPORT Part III - Mud/pore pressure
4.2.7REPORT Part IV - Present operation
4.2.8REPORT Part V - Survey
4.2.9REPORT Part VI - Operation/mode
4.2.10REPORT Part VII - Log
4.2.11REPORT Part VIII - Core
4.2.12REPORT Part IX - Well test
4.2.13REPORT Part X - RFT test
4.2.14REPORT Part XI - Weather
4.2.15REPORT Part XII - Remarks
4.2.16REPORT Part XIII - Lithology
4.2.17REPORT Part XIV - Equipment fail
4.2.18REPORT PART XV - Kick
4.2.19REPORT part XVI - Preliminary zonation
4.2.20REPORT part XVII - Perforation intervals
4.3End of file
4.4Example of a completed transaction file
5.COMMUNICATION
6.APPENDIX A: OPERATION CODES
7.APPENDIX B: EQUIPMENT CLASSIFICATION
8.CHANGES OF THE CDRS REPORT SYSTEM
8.1New tables
8.2Separated tables/values
8.3New data fields
8.4New sub operations
1.DAILY DRILLING REPORT SYSTEM (CDRS) introduction
The Petroleum Safety Authority (PSA) will as a rule require ongoing activities to be reported on a daily basis (weekdays) to the drilling data base of the PSA, before 1200 noon. Reports shall be in accordance with the format described in this CDRS user's guide[1].
The CDRS is a EDP-system that covers information from wells drilled on the Norwegian continental shelf. All wells spudded after 1.4.84 is included in the database and the system consists of two parts:
- Data-entry part to be used by all operators
- Central database part to be used by the PSA
This manual covers necessary information related to the data-entry part:
- Program and report parts:Description of each part included in the drilling report and
legal values to be used (chapter 2 and 3).
- Transaction file: Layout of each part (chapter 4).
- Communication:How to transmit the transaction file to the PSA (chapter 5).
Note that the CDRS is based on the SI-system except for the casing and hole diameters which is given in inches.
2.DRILLING PROGRAM
Before a new well is spudded and every time there are changes in the previous drilling program, a new drilling program must be reported separately to PSA. In addition the CDRS drilling program part shall cover the following parts:
- PROGRAMpart I:Basic well data
- PROGRAMpart II:Estimated/planned well
- PROGRAMpart III:Prognozed zonation
2.1PROGRAM part I- Basic well
Field name / Length / Format / [Units] / RemarksWFIELD / 4 / 9999
WBLOCK / 2 / 99
WPLATF / 1 / A
WNO / 2 / 99 / Well name[2]
WHIST1 / 3 / AAA
WTRACK / 2 / T9
WHIST2 / 2 / AA
PDTVD / 7 / 99999,9 / [meter]
PDMD / 7 / 99999,9 / [meter]
WDLAT / 7 / 99999,9 / [meter]
LATITUDE: / 9 / 999999,99
- Ladeg / Format: 99
- Lamin / Format: 99
- Lasec / Format: 99,99
LONGTITUDE: / 9 / 999999,99
- Lodeg / Format: 99
- Lomin / Format: 99
- Losec / Format: 99,99
TEXT / 74 / A x 74
Description:
/ WFIELDgives field identification.
South of 62nd parallel:
Official format / Transaction formatIE.1: / 17/10-5 / 001710 05 / Exploration well
IE.2: / 17/10-A-5 / 001710A05 / Production well
North of 62nd parallel. Fields north of the 62nd parallel are designated by a four - digit number. The first two digits show the latitude, and the second two the longitude at the lower left corner of the field. The block and well numbering system is the same both north and south of the 62nd parallel.
Official format / Transaction formatIE.3: / 7016/10-5 / 701610 05 / Exploration well
IE.4: / 7016/10-A-5 / 701610A05 / Production well
/ WBLOCK gives block identification.
Official format / Transaction formatIE.1: / 17/10-5 / 001710 05 / Exploration well
IE.2: / 17/10-A-5 / 001710A05 / Production well
/ WPLATF gives platform identification.
- Production wells:
Write field, block, platform identification code and well number.
- A - P for platform
- U for shallow boreholes
- T for test production well
Official format / Transaction formatIE.2: / 9/11-A-5 / 001710A05
IE.4: / 7016/10-A-5 / 701610A05
The platform identification code shall only be used when drilling from a fixed installation.
/ WNO gives well number identification.
South of 62nd parallel:
Official format / Transaction formatIE.1: / 17/10-5 / 001710 05 / Exploration well
IE.2: / 17/10-A-5 / 001710A05 / Production well
North of 62nd parallel:
Official format / Transaction formatIE.3: / 7016/10-5 / 701610 05 / Exploration well
IE.4: / 7016/10-A-5 / 701610A05 / Production well
/ WHIST1 gives well history and well configuration.
-Exploration wells:
- A, B, C, D,.... for side drilling (new wells)
Official format / Transaction formatIE.1: / 17/10-5 A / 001710 05A
IE.2: / 7016/10-5 A / 701610 05A
- S for an inclined exploration well
(if the side drilling is done form an inclined well, the S shall not be used)
Official format / Transaction formatIE.3: / 17/10-5 S / 001710 05S
IE.4: / 7016/10-5 S / 701610 05S
- R for re-entered exploration well and times re-entred (blank,1,2,...).
Official format / Transaction formatIE.5: / 17/10-5 R / 001710 05R
IE.6: / 7016/10-5 AR / 701610 05AR
IE.7: / 7016/10-5 AR2 / 701610 05AR2
-Production wells:
- A, B, C, D,.... for side drilling (new wells)
Official format / Transaction formatIE.8: / 9/11-A-5 A / 001710A05A
IE.9: / 7016/10-A-5 A / 701610A05A
/ WTRACK gives the well track number.:
(Well track numbers are assigned by the operator).
- Well track number - first well track in a well is not to be
given a number. Then next well track is designated
T2, T3 etc.
Official format / Transaction formatIE.1 a): / 17/10-5 / 001710 05 / Exploration well
IE.1 b): / 17/10-5 T2 / 001710 05 T2 / Exploration well
IE.2 a): / 9/11-A-5 / 000911A05 / Production well
IE.2 b): / 9/11-A-5 T2 / 000911A05 T2 / Production well
/ WHIST2 gives well history.
(Well history are assigned by the Norwegian Petroleum Directorate (NPD)).
-Exploration wells:
- X for a well that is junked
Official format / Transaction formatIE.1: / 17/10-5 R2X / 001710 05R 2X
IE.2: / 7016/10-5 R2X / 701610 05R 2X
-Production wells:
- X for a well that is junked
Official format / Transaction formatIE.3: / 9/11-A-5 X / 000911A05 X
IE.4: / 7016/10-A-5 X / 701610A05 X
- H for subsea completed well
(used only for development wells)
Official format / Transaction formatIE.5: / 9/11-A-5 H / 000911A05 H
IE.6: / 7016/10-A-5 H / 701610A05 H
IE.7: / 0031/02-B-25 AH / 003102B25A H
/ PDTVD gives planned true vertical depth (RKB).
The planned vertical depth (TVD) shall be given in metres. One decimal can be given.
/ PDMD gives planned measured depth (RKB).
Planned measured depth (MD) is only to be given when the well is planned to be drilled directional. The planned measured depth has to be given in metres. One decimal can be given.
/ WDLAT gives water depth.
Water depth has to be reported as LAT ( Lowest Astronomical Tide ), and it has to be given in metres. One decimal can be given.
LATITUDE:
- Ladeg gives latitude degrees.
- Lamin gives latitude minutes.
- Lasec gives latitude seconds.
Latitude seconds can be given with two decimals.
LONGTITUDE:
- Lodeg gives longitude degrees.
- Lomin gives longitude minutes.
- Losec gives longitude seconds.
Longitude seconds can be given with two decimals.
/ TEXT gives general planned/estimated freetext data.
Freetext data may be written in this field. Freetext data should contain information's concerning type of wellhead system, use of TGB/PGB, possibilities of shallow gas, boulders and/or other relevant information. Variable freetext length.
2.2PROGRAM part II - Estimated/planned well
This program part is seperated into five parts:
a)Planned mud type
b)Estimated/Planned mud/pore pressure
c)Estimated fracture gradient
d)Planned casing string
e)Planned phase
f)Planned directional
2.2.1PROGRAM PART II a) - Planned mud type
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
PDTVD / 7 / 99999,9 / [meter]
PDMD / 7 / 99999,9 / [meter]
MTYPE / 15 / A15
Description:
/ PDTVD gives estimated/planned true vertical depth (RKB).
Give estimated true vertical depth every time there are changes in the parameters. The estimated/planned true vertical depth has to be given in metres. One decimal can be given.
/ PDMD gives estimated/planned measured depth (RKB).
Give estimated measured depth every time there are changes in parameters.The estimated/planned measured depth has to be given in metres. One decimal can be given.
/ MTYPE gives type of mud.
The type of drilling mud planned to be used in the borehole has to be specified.
2.2.2PROGRAM part II b) - Estimated/planned mud/pore pressure
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
PDTVD / 7 / 99999,9 / [meter] / ref. 2.2.1
PDMD / 7 / 99999,9 / [meter] / ref. 2.2.1
PPRESS / 4 / 9,99 / [g/cm³]
MWEIGHT / 4 / 9,99 / [g/cm³]
Description:
/ PPRESS gives estimated pore pressure.
Give sufficient pore pressure data to draw the curve of anticipated pore pressures. Data have to be given in eqv. mud weight - relative density. Two decimals can be given. Linear development are described by the endpoints.
/ MWEIGHT gives planned mud weight.
Give sufficient mud weight data to describe the curve of planned mud weights. Data have to be given in relative density. Two decimals can be given. Linear development are described by the endpoints.
2.2.3PROGRAM part II c) - Estimated fracture gradient
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
PDTVD / 7 / 99999,9 / [meter] / ref. 2.2.1
PDMD / 7 / 99999,9 / [meter] / ref. 2.2.1
FGRAD / 4 / 9,99 / [g/cm³]
Description:
/ FGRAD gives estimated fracture gradient.
Give sufficient fracture gradient data to describe the curve of anticipated fracture gradients. Data have to be given in equivalent mud weight - relative density. Two decimals can be given. Linear development are described by the endpoints.
2.2.4PROGRAM part II d) - Planned casing string
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
PDTVD / 7 / 99999,9 / [meter] / ref. 2.2.1
PDMD / 7 / 99999,9 / [meter] / ref. 2.2.1
COD / 6 / 99,999 / [inch]
CWEIGHT / 6 / 999,99 / [kg/m]
CGRADE / 10 / A10
CTHREADS / 10 / A10
FROMDAY / 3 / 999
TODAY / 3 / 999
Description:
/ COD gives outer diameter of the casing.
Give planned nominal outer diameter of the casing for every casing string. If the casing string is made up of two or more sections, with respect to diameter, then establish new depth line(s) at the transition point(s) to indicate the start of every new section, and give the relevant new data concerning the diameter. The outer diameter has to be given in inches, tree decimal can be given.
/CWEIGHT gives weight of the casing.
Has to be given in kg/m. Can be given with two decimals.
IE.1: 105.16
IE.2: 78.56
If the casing string is made up of two or more sections, with respect to the weight, then establish new depth line(s) at the transition point(s) to indicate the start of every new section, and give the relevant new data concerning the weight.
/ CGRADE gives grade of the casing.
- IE.1: N80
- IE.2: P110
If grade is not standardised by API, use the asterisk <*>.
- IE.3: N80*
- IE.4: P110*
If the casing string is made up of two or more sections, with respect to the grade, then establish new depth line(s) at the transition point(s) to indicate the start of every new section, and give the relevant new data concerning the grade.
/ CTHREADS gives threads of the casing.
If the casing string is made up of two or more sections, with respect to the threads then establish new depth line(s) at the change point(s) to indicate the start of every new section, and give the relevant new data concerning the threads.
/ FROMDAY gives from day
Give the day number the casing shall be set.
/ TODAY gives to day
Give the day number the casing is finish cemented.
2.2.5PROGRAM part II e) - Planned phase
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
PDTVD / 7 / 99999,9 / [meter] / ref. 2.2.1
PDMD / 7 / 99999,9 / [meter] / ref. 2.2.1
PHASE / 6 / 99,999 / [inch]
Description:
/ PHASE gives hole diameter of the phase.
Write the planned hole diameter every time a new phase starts. The hole diameter has to be given in inches, tree decimal can be given.
2.2.6PROGRAM part II f) - Planned directional
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
DTVD / 7 / 99999,9 / [meter]
DMD / 7 / 99999,9 / [meter]
AZIMUTH / 6 / 999,99 / [degree]
INCL / 6 / 999,99 / [degree]
Description:
/ DTVD gives planned true vertical depth (RKB).
Every time new azimuth and/or inclination data is given, then also give TVD. Has to be given in metres. One decimal can be given.
/ DMD gives planned measured depth (RKB).
Every time new azimuth and/or inclination data is given, then also give MD. Has to be given in metres. One decimal can be given.
/AZIMUTH gives the planned azimuth.
The planned azimuth has to be given in degrees ( 0 -360 ) with two decimals.
/ INCL gives planned inclination.
The measured inclination has to be given with two decimals.
2.2.7PROGRAM part II g) – Registration number
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
RNUMBER / 10 / A10
Description:
/ RNUMBER gives the registration number given by the NPD
2.3PROGRAM part III - Prognozed zonation
(Data from Drilling program )
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
FORMATION / 74 / A74
DEPTH_MD / 7 / 99999,9 / [meter]
DEPTH_TVD / 7 / 99999,9 / [meter]
Description:
/FORMATION
Formation/zone top for each formation/zone in the well. The Operators established formation/zone codes shall be used.
/DEPTH_MD
Top of formation/zone in meters MD.
/DEPTH_TVD
Top of formation/zone in meters TVD.
3.DAILY REPORT
When a new well is spudded a daily report must be reported. Note that REPORT part II, IV, VI and XI must always be present in a daily drilling report. The CDRS daily report part covers the following parts:
- REPORTpart I:Basic information
- REPORTpart II:Status
- REPORTpart III:Mud/pore pressure
- REPORTpart IV:Present operation
- REPORTpart V:Survey
- REPORTpart VI:Operation/mode
- REPORTpart VII:Log
- REPORTpart VIII:Core
- REPORTpart IX:Test
- REPORTpart X:RFT test
- REPORTpart XI:Weather
- REPORTpart XII:Remarks
- REPORTpart XIII:Lithology
- REPORTpart XIV:Equipment fail
- REPORTpart XV:Kick
- REPORTpart XVI:Preliminary zonation
- REPORTpart XVII:Perforation intervals
3.1REPORT part I - Basic information
This report part is seperated into four parts:
a) Well classification
b) Operator
c) Contractor
d) Rig
3.1.1REPORT part I a) - Well classification
Field name / Length / Format / RemarksWELL / 16 / ref. 2.1
WCLASS / 20 / A20
Description:
/ WCLASS gives well classification.
Specify whether the purpose of the well is:
WILDCAT / Wildcat well is the first well drilled to explore a new, clearly defined geological unit, delimited by rock types by way of structural or stratigraphic boundaries.APPRAISAL / Appraisal well is a well drilled to establish the extent and the size of a petoleum deposit.
PRODUCTION / Producion well is a well used for production of petroleum.
INJECTION / Injection well is a well used for injection of gas, water or other medium.
OBSERVATION / Observation well is a well used to map or monitor well parameters.
3.1.2REPORT part I b) - Operator
Field name / Length / Format / RemarksWELL / 16 / ref. 2.1
OPERATOR / 20 / A20
Description:
/ OPERATOR gives name of operator.
3.1.3REPORT part I c) - Contractor
Field name / Length / Format / RemarksWELL / 16 / ref. 2.1
CONTRACTOR / 20 / A20
Description:
/ CONTRACTOR gives name of drilling contractor.
3.1.4REPORT part I d) - Rig
Field name / Length / Format / [Units] / RemarksWELL / 16 / ref. 2.1
RIG / 20 / A20
RIGHEAD / 5 / 999,9 / [degree]
AIRGAP / 5 / 99,99 / [meter]
WHELEVAT / 6 / 9999,9 / [meter]
Description:
/ RIGHEAD gives rig heading.
Give rig heading in relation to geographical north. 0 deg. and 360 deg. is geographical north. One decimal can be given.
/AIRGAP gives elevation of RKB above sea level
Airgap elevation RKB, has to be given in metres.
/WHELEVAT gives WH elevation above sea level
Give wellhead elevation above sea level, has to be given in metres
3.2REPORT part II - Status
Sidetracks will be splitt into two separate groups, which are: Sidetrack for a new prospect and sidetrack for technical reasons. In case of a technical sidetrack, the "REPORT part I - Status" should be sent in (only the fields relevant for the example are shown):IEWellRdateDdmdTvdTstKpmdMpbd
1000102 039501012000,01875,0
2000102 039501022000,01875,01500,0
3000102 039501032000,01875,0
4000102 039501042000,01875,0Y
4000102 03 T29501041500,01350,01450,0
4000102 03 T29401052000,01875,0 /
Field name / Length / Format / [Units] / Remarks
WELL / 16 / ref. 2.1
RDATE / 6 / 999999
DDMD / 7 / 99999,9 / [meter]
MPBD / 7 / 99999,9 / [meter]
PHASE / 7 / 99,999 / [inch]
PCMD / 7 / 99999,9 / [meter]
PHOLE / 1 / A
PHSIZE / 6 / 99,999 / [inch]
PHTVD / 7 / 99999,9 / [meter]
TST / 1 / A
KPMD / 7 / 99999,9 / [meter]
FSLM / 4 / 9,99 / [g/cm³]
FSMD / 7 / 99999,9 / [meter]
CSDIM / 6 / 99,999 / [inch]
CSMD / 7 / 99999,9 / [meter]
TESTTYPE / 3 / AAA
TVD / 7 / 99999,9 / [meter]
Description:
/ RDATE gives present date.
Dateformat year,month and day with leading zeroes.
/ DDMD gives measured depth (RKB) at end of report.
The measured length to the total drilled depth (TD) has to be given in metres at end of report.
Can be given with one decimal.
/ MPBD gives measured plug back depth (RKB).
The measured length to the top of the last plug has to be given at the end of the report. If the well is not being plugged back at the present, then type CR (carriage return). The length has to be given in metres. Can be given with one decimal.
/ PHASE gives size of the present phase.
Write size of the present phase. If phase changed during the 12 first hours of the 24 hours report, write size of the new phase. If the phase did not change, or changed during the last 12 hours of the 24 hours report, then type CR. Then the system will use last reported phase also for this report. Size has to be given in inches, tree decimals can be given.
/ PCMD gives measured depth (RKB) where phase changed.
When phase is changing size, the relevant measured depth (MD), to the transition point has to be given. The operator must define when phase is changing. Has to be given in metres. Can be given with one decimal.
/ PHOLE are you drilling a pilot hole ?
Are you drilling pilot a hole in this phase?
If yes, type Y (yes).
If not, type blank.
/ PHSIZE gives size of the pilot hole.
Size has to be given in inches, tree decimals can be given.
/ PHTVD gives planned TVD of the pilot hole.
The planned true vertical depth (RKB) has to be given in metres. One decimal can be given.
/ TST are you performing a technical sidetrack?
Are you performing a technical sidetrack?
If yes, then type Y (yes)
If not, type blank.
/ KPMD gives measured depth (MD) to the kickoff point.
The measured depth to the kickoff point for the sidetrack has to be given in metres.
One decimal may be given.
/ FSLM gives measured formation strength.
LOT and FIT has to be reported as a gradient. Data has to be given in equivalent mud weight - r.d. Two decimals can be given.