Whiting Permitted  #247223  L SMK RA SUA; Langford 4H 001 Horizontal well Sec 4 - 22N - 7W  Claiborne Parish  Vertical Depth 11,581'  MD 18,153'  11/7/2013

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If my math is correct this would be a 6,572' lateral. They drilled the Langford Vertical  (#244830) to 12,070' so they probably have a decent idea what they have.   Let's hope they can make this work with their technology (Cemented Liners with Plug and Perf).


Thanks Skip.

It's interesting that they decided to move south for this new well rather than converting the old AIX Langford vertical to a horizontal. I guess the new location allows them to drill their very long lateral. Go Whiting!

obed, the Langford will make a good monitor well.  Which brings up the question, did SWN use any monitor wells in conjunction with their early wells? 

Skip, I think I recall SWN using seismic monitoring wells for the Roberson well but not for their other LSBD wells.

I thought I recalled at least one prior instance and that must be it.  Thanks.

obed, you're correct.  There was micro-seismic at Roberson.  Four wells, if I remember correctly.

Excuse my ignorance but what is a monitor well. Does ii give a better picture of the formation or is there some other benefit.

It's call micro-seismic monitoring and is employed in conjunction with frac operations.  Here's a blurb from Halliburton.

Microseismic Monitoring

Pinnacle, a Halliburton service, pioneered offset wellbore microseismic mapping and is the standard by which alternate fracture mapping technologies and competitors are measured. Microseismic fracture mapping provides an image of the fractures by detecting microseisms or micro-earthquakes that are triggered by shear slippage on bedding planes or natural fractures adjacent to the hydraulic fracture. The location of the microseismic events is obtained using a downhole receiver array that is positioned at the depth of the fracture in an offset wellbore.

Microseismic fracture mapping is employed to improve production economics by increasing reservoir productivity and/or reducing completion costs. This capability helps assure the fracture stays in the intended zone and that the complete zone is stimulated. This capability can help optimize production and minimize the number of wells and fractures required. Results from microseismic fracture mapping can be used to "calibrate" fracture growth models. Halliburton's fracturing and acidizing capabilities are aligned with Pinnacle's technologies and expertise to help provide operators a comprehensive solution to the complex exploration and production challenges of unconventional assets.

Again Thank You Skip.

Also, it allows them to avoid the pitfalls associated with entering a poorly-drilled well.



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