April 10, 2012


Description

Do you really know where your well and/or competitor’s wells are located in the subsurface? 
 
Directional survey data is the critical well control information that provides control on the spatial positioning of drilled wells and their 2D/3D wellpaths. Geologists, geophysicists and engineers rely on properly located well paths for their diverse efforts.  Very few in these disciplines would recognize the many ways wellpaths can be located incorrectly.  As an interpreter, I was clueless about the issues of well path positioning.
 
There are two main issues adversely affecting those that use well path control.  One is the issue on whether the maps or databases being used represent all the drilled wellpaths/wellbores. They almost never are complete – as a matter-of-fact most databases and resultant mapping efforts are missing 15-20% of the drilled wellbores. This clearly can affect interpretation, modeling,  and evaluations.
 
Second, are the wells in the right place? It might be  better to say, are they spatially correct, as there is also an important elements of depth and elevation that needs to be considered.  Wellpath control is no better than the combination of all the spatial factors controlling that wellpath. If the starting point is wrong, ie at the surface location, the entire well path is wrong.  The actual well path is controlled by several important parameters that will be reviewed.
 
Incorrectly positioned well path control can certainly adversely affect the efforts of geologists, geophysicists and engineers. Care needs to be taken to make sure well path control is complete and spatially correct.  Else, they can also cause expensive, multi-millions dollar mistakes, like drilling wells in the wrong place ( sometimes on somebody else leases), decisions to lease the wrong acreage, and drilling wells that did not need to be drilled.
 
 
If you have a job listing for a Petro Tech, please send it to spe.petrotech@gmail.com for our techs to see.
 
In addition, if you are looking for a job or know someone that may be looking for a job, you may go to - Google, Gmail - USERNAME = spe.petrotechs, PASSWORD = petrotechs007 - and VIEW all the emails regarding jobs available.   Please, DO NOT post a resume to this email site.
 

Featured Speakers

Speaker James M. Stolle
Bus. Devel. Mgr. - Directional Survey Data TGS Geological Products Jim Stolle attended Oregon State University and later Brigham Young University. He received a B.S. in Geology, and subsequently a M.S. in Geology with a specialty in  Stratigraphy.  The first half of his career of  over 37 years was in ...

Bus. Devel. Mgr. - Directional Survey Data
TGS Geological Products




Jim Stolle attended Oregon State University and later Brigham Young University. He received a B.S. in Geology, and subsequently a M.S. in Geology with a specialty in  Stratigraphy.  The first half of his career of  over 37 years was in exploration and development operations and interpretation, initially as a geologist progressing to geological/geophysical interpretation. Some of the areas of interpretation were onshore and offshore California, offshore Alaska, Nevada, Canada, Rockies, Gulf of Mexico, and the North Sea. In California Jim’s involvement included working on notable new discoveries, the  Pedernales Field discovery offshore Santa Barbara-Santa Maria, and an onshore oil field discovery at the Landslide Oil Field in Kern County- an Upper Miocene Stevens submarine fan structural/stratigraphic trap.


 


From 3D interpretation efforts in the Gulf of Mexico, it became obvious that data and particularly directional survey data were not easy to load into applications/workstations. The resulting wellpath was a weak area for most interpreters. This issue germinated the career effort to build directional survey databases in the U.S. and to address the many critical spatial positioning issues. Jim has led projects building directional survey data in the Gulf of Mexico, onshore So. Louisiana  Gulf Coast, onshore Texas Gulf Coast, Texas bays and inland waters, Texas Barnett Shale area, the Haynesville play, and Beverly Hills, Calif.  These projects envisioned, started   and led by Stolle now have resulted in almost  100,000 wells with directional surveys.  Directional survey efforts provided an invaluable education on API numbering and particularly what worked and does not work with the current API Well Numbering standard. In 1996 Jim organized an industry API symposium to review the API number, its function, weaknesses and needed enhancements. Well data integration problems resulting from API numbers became obvious.- the problems became obvious as did the realization that these problem will not fix themselves.  Jim Stolle is currently one of the co-chairmen of the PPDM’s steering committee over the effort to re-write the API D12A well numbering standard.



Full Description



Organizer

Lilly Lee


Date and Time

Tue, April 10, 2012

11:30 a.m. - 12:30 p.m.
(GMT-0500) US/Central

Event has ended

If you do not have a full-time job in the oil and gas industry, are a full-time student or Member in Transition (MiT) member, and you do not see a discounted registration fee for students/MiT regarding this event, please contact the GCS manager at spe-gcs@spe.org.


Location

Brookhollow Sheraton

3000 North Loop West
Houston, TX 77092
USA