Replies to This Discussion

Permalink Reply by Skip Peel - Mineral Consultant on July 9, 2015 at 8:05

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.

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Permalink Reply by JMan on July 9, 2015 at 8:11

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 

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Permalink Reply by Two Dogs, Pirate on July 9, 2015 at 8:19

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

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Permalink Reply by Skip Peel - Mineral Consultant on July 9, 2015 at 8:27

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

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Permalink Reply by JMan on July 9, 2015 at 8:29

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

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Permalink Reply by Skip Peel - Mineral Consultant on July 9, 2015 at 8:31

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.

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Permalink Reply by Nixon Dow on July 9, 2015 at 12:08

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.

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Permalink Reply by Nixon Dow on July 9, 2015 at 12:18

Sorry forgot to attach it.

Attachments:

• Historic Well File #175612.pdf, 681 KB

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Permalink Reply by Skip Peel - Mineral Consultant on July 9, 2015 at 16:28

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

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Permalink Reply by JMan on July 10, 2015 at 2:16

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!

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Permalink Reply by Joe Aldridge on July 9, 2015 at 23:04

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. 

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Permalink Reply by JMan on July 10, 2015 at 2:17

Joe,

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

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