I am trying to find information about how a well was P & A'd in Louisiana in 1989.  I need to know if explosives were used or if the casing was mechanically cut.  The cutting took place at 2450'.  Are explosives still allowed and if not, what year did they make it illegal?  I have the P & A paperwork and it isn't noted what took place.  

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Explosives are not used.  Not for plugging and abandoning a well.  The common practice is to set multiple cement plugs at varying depths and then to cut the surface casing "below plow depth".  The P&A report should contain the number of plugs and the depth at which they were set.  If you want me to look it up, post the serial number.

The casing got stuck and they had to cut it at 2450' or so. I know of three ways to get the pipe if it gets stuck and that's to chemically cut it, mechanically cut it or the use explosives at that depth.  The serial number is 175612 

Skip, it is my understanding that they sometimes use explosives with mechanical plugs.

Curious that there is no well file in the Document Access portion of the database.  Yes you are both correct as to explosives but the process is closer to perforating the casing than it is to setting off a bomb.  Anyway no mention of cutting the casing in the SONRIS Well File P&A section.  Since the top of the surface plug is at 4' I would suspect that is where the casing was cut.

CASING

COMPLETION DATE

CASING SIZE

WELLBORE SIZE

CASING WEIGHT

UPPER SET DEPTH

LOWER SET DEPTH

CEMENT SACKS

TEST PRESSURE

HOURS UNDER PRESSURE

TEST DATE

CASING PULLED

CREATION PROCESS

07/26/1989

0958

0

PLUG AND ABANDON

07/26/1989

00

0

PLUG AND ABANDON

07/26/1989

0512

2450

PLUG AND ABANDON

09/23/1981

0512

0978

17

0

11412

810

3000

.5

09/15/1981

CASING TEST

09/23/1981

1034

1434

40.5

0

2484

1535

1500

.5

08/28/1981

CASING TEST

PLUG AND ABANDON

P and A DATE

LOCATION TYPE

CASING CUT TYPE

CASING CUT DEPTH

MUD WEIGHT LEFT

COMMENTS

07/26/1989

PLUGS

PLUG TYPE

UPPER PLUG DEPTH

LOWER PLUG DEPTH

SACKS OF CEMENT

SLURRY WEIGHT

9954

10104

20

4

54

25

2350

2550

68

Yes it was also cut at 4' but I'm needing to know what took place downhole.  Thanks for checking!

Lower plug 10104 to 9954'.  Middle plug 2550 to 2350'.  Upper plug 54 to 4'.  You're welcome.  If you wish to look further a call to the database staff might be in order.  This well should have a Historic Well File in the Document Database.

Not sure if you all were still looking for the well file but I was able to find the historic well file and download it. I attached it below.

Sorry forgot to attach it.

Attachments:

Thanks, Nixon.  The P&A reports are included.

Thanks Nixon.  I happened to already have the plugging report but unfortunately it doesn't tell me how it was actually cut.  I called the company that did the P&A and I am currently waiting on a return phone call.  Thanks again!

JMan,

Yes, they pulled the two inter casings according to the P&A report. The casing is cut at the "free point" of the casing with a cutting charge. So yes they cut the casing with an explosive charge. Then they cemented each cut with a cement plug. 

Joe,

Where does it say a cutting charge was used as apposed to knives or chemicals?  Thanks for your reply.

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