Drilling

Background and Context In 2016, the Loanan well (214/23-1) located in the Faroe-Shetland Basin was prematurely TD’d as a result of inadequate kick tolerance given the probability of encountering an overpressured igneous intrusion within the secondary target (see Mark et al... Read More.

Abstract Based on wireline logs, core data and pressure information obtained directly during drilling, the various shale units within the Wolfcamp Formation in the Delaware Basin are known to be variably pressured with depth, and the pressure can change laterally within the same... Read More.

  Abstract   This paper presents a case study showing that traditional pore pressure prediction techniques can be adapted to predict pore pressure in an unconventional play by using a newly defined Pressure Reference Trend (PRT) in-lieu of a Normal Compaction... Read More.

Abstract Unconventional operators require geomechanical reservoir characterization to improve well performance. Fit-for purpose solutions are needed to balance the accuracy of the solution and the time and cost involved to deliver products to ongoing operations. We show an examp... Read More.

Induced seismicity, casing deformation, fracture stimulation design and well planning all require an understanding of the in situ stress state. Stress models are typically built in 1D along well profiles where sufficient data is available. However, this only provides accurate i... Read More.

Introduction: In May 2017 Ophir Energy announced that the ultra-deep water Ayame-1X exploration well had reached its total depth of 5394m TVDss. The well targeted multiple Cretaceous turbidite channel and fan complexes which were encountered as prognosed. Furthermore, the well dr... Read More.

Introduction : The Mississippian Meramec STACK play is an emerging unconventional target in the Anadarko Basin in west central Oklahoma. Prolific production results have been seen through the play from multiple prospective target intervals. While there has been newfound success, ... Read More.

Seismic inversion products are routinely used for earth modeling and influence the drilling program. However, this process is not trivial as the deepest target intervals are at around 12,000ft and the drilling windows are very narrow, in the range of 20-40ft. We demonstrate that ... Read More.

The in situ stress and elastic rock properties are first order controls on fracture stimulation behavior and consequently production. Understanding these properties at offset locations can facilitate optimal well placement and completion design. To achieve this objective, a coup... Read More.