I have also opined that the farther one gets from the vertical, the less effective the production (for any number of reasons), and I predicted that we would eventually see toe-to-heel horizontals paralleling heel-to-toe horizontals. I now have a great example (and there are others).
At the NDIC GIS map server, go to section15/22 T154N-R91W. Currently there are eight wells in these two sections. The horizontals from these eight wells do not all drain sections 15/22.
- 17080, 2,096, Whiting, Niemi 44-22H, t10/09; cum 316K 1/13;
- 18507,1,946, Whiting, Lahti 24-22H, t6/10; cum 332K 1/13;
- 19502, 2,720, Whiting, Niemitalo 31-15XH, t2/11; cum 222K 1/13;
- 20415, 362, Whiting, Laukala 34-22TFH, t9/11; cum 64K 1/13;
- 21273, 273, Whiting, Lahti 41-15TFX, t12/11; cum 49K 1/13;
- 21348, 312, Whiting, Lahti 31-15TFX, t12/11; cum 69K 1/13;
- 21438, 370, Whiting, Lahti 14-22TFH, t11/11; cum 68K 1/13;
- 21546, 537, Whiting, Lahti 12-22TFH, t3/12; cum 63K 1/13;
- 17080, 2,096, Whiting, Niemi 44-22H, t10/09; cum 316K t1/13;
- 21273, 251, Whiting, Lahti 41-15TFX, t12/11; cum 49K 1/13;
As noted above, there are eight (8) wells in these two sections; I could easily see another eight wells in these two sections (again, the horizontals would drain neighboring sections in some cases). But to the surface owner, one would see as many as 16 wells in these two sections.