This case study presents a head-to-head comparison of two sets of four wells drilled in the Eagle Ford basin in Southern Texas, one set of four wells that were guided by the MOTIVE Directional Drilling Bit Guidance system, and one set of four wells that were drilled without using the system.
These eight wells were drilled in the same area (within one mile of one another) , with nearly identical lithologies, well path geometries, drill bit, BHAs, and other associated rig equipment, and were drilled at approximately the same time.
Furthermore, the MOTIVE-guided wells had somewhat more complex well geometries and longer laterals (~5300 lateral feet for the non-MOTIVE wells vs ~6600 lateral feet for the MOTIVE-guided wells).
The results demonstrate the compelling benefits for the MOTIVE-guided wells compared to the non-MOTIVE wells:
30% lower effective directional drilling cost
vs the lowest-priced traditional mud motor option, due to reduced drilling time
Nearly twice the accuracy
over traditional mud motors, staying within 5 feet of the well plan 79% percent of the time compared to 44% for the non-MOTIVE wells. This leads to increased hydrocarbon production potential.
Zero non-productive time (NPT)
due to MWD or mud motor failures, compared to 13% MWD or mud motor-related NPT on the non-MOTIVE wells
Lowest Footage Cost
MOTIVE achieved a 15% reduction in drilling time, despite the increased complexity and length of the laterals. The effective improvements were seen in all well sections in this study:
12 ¼” Vertical Section
8½” Vertical Section
8½” Curve Section
12 ¼” 8½” Lateral Section
(7% Improvement) **
This reduction in drilling time has saved an average of 28 hours on each of the MOTIVE-guided wells (equating to an average spread cost savings of over $70k per well).
Nearly Twice the Accuracy
In addition to the cost savings, the MOTIVE-guided wells had roughly twice the accuracy in the ability to follow the well plan, compared to the non-MOTIVE guided wells (within five feet of plan 79% of the time, versus only 44% for the non-MOTIVE guided wells). The non-MOTIVE wells were also outside of 10 feet from plan 12% of the time, compared to less than 1% for the MOTIVE wells. The data clearly demonstrates that MOTIVE technology facilitates greater productivity over the life of the well.
Less Tourtuousity, Less Non-Productive Time, Record Performance
The MOTIVE wells were less tortuous, due to the ability to better predict the bit location between surveys and requiring less adjustment at each survey station. This reduces the risk of future casing running or production problems.
Two other benefits gained from using the MOTIVE Bit Guidance system are very significant but more difficult to quantify with precision. The first is the avoidance of catastrophic directional drilling mistakes. By using machine intelligence to continuously predict the bit position, by validating the prediction at each survey station, and by promoting remote collaboration, directional driller errors are uncovered and corrected much sooner. The MOTIVE Bit Guidance system continuously analyzes millions of steering options at each survey point based on cost. One of the factors in this Guidance System real-time analysis is the cost related to the reduced hydrocarbon recovery factor as a result of drilling away from the target defined by geologists, geophysicists, and reservoir engineers. The cost of lost production potential is balanced against the costs associated with drilling time and the costs associated with tortuosity risk in every directional drilling steering decision performed by the system. Increased production potential as a result of improved accuracy can easily dwarf all of the other cost savings proven and documented in this study.