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New completion design optimizes well performance

KRYPTOSPHERE® LD increases production by more than 500 BOPD during the recompletion of two wells in Colombia.

Location: Near El Morro in Casanare, Colombia

Challenge: Historically, extremely low relative permeability and fluid build-up at the wellhead (condensate banking) has been the primary contributor to restricted production of many wells in this area. Hydraulic fracturing can be effective, but high in-country costs prompted an operator to seek out improved technologies
to enhance well performance and reduce costs. In this area, wells are drilled to 16,000 ft TVD (19,000 ft MD).
High closure stresses put a premium on exceptionally conductive proppant, that can also deliver transport capacity and not erode pumping and
related equipment.

Solution: The operator identified KRYPTOSPHERE® LD low-density ceramic proppant as the
top candidate for optimizing well performance in two previously completed wells. Along with higher baseline conductivity than standard intermediate and low-density ceramic proppant, the smooth and uniform shape of KRYPTOSPHERE LD was seen as a viable option for increasing production within intervals that were targeted for recompletion.

“KRYPTOSPHERE® LD is an ultra-conductive, low-density ceramic proppant, which has been engineered to display exceptional strength, durability and smoothness. It significantly improves upon the conductivity of existing low-density proppant across the entire range of low to high stress well conditions and diminishes costly wear-and-tear on pressure pumping equipment. Additionally, the technology provides improved proppant transport and increased propped fracture volume compared to intermediate-density and bauxite-based ceramics. Ultimately, KRYPTOSPHERE LD delivers higher production and EUR.”

Method: The operator chose two wells in the field to apply this new completion design. The two wells were originally completed with an alternative standard bauxite-based ceramic proppant. These wells were each recompleted in another producing zone with the expectation that these zones would contribute new production to the well. Based on the earlier evaluation, KRYPTOSPHERE LD 25 was used in place of the standard bauxite-based ceramic.

Results: Results of post-frac analysis confirmed KRYPTOSPHERE LD delivered higher conductivity leading to a 900 BOPD increase in production in Well 1 attributed to the new interval, and a 500 BOPD increase in production from the new interval in Well 2. A comparative analysis of offset fracture treatments showed these improved production rates and higher transport efficiency without the costs associated with a more abrasive proppant. The intervals continue to hold steady at rates showing minimal decline in production.

Conclusion

KRYPTOSPHERE LD is typically used for onshore and select offshore applications while KRYPTOSPHERE HD technology was engineered for ultra-deep, offshore applications. KRYPTOSPHERE XT has been recently introduced as an improved low-density ceramic proppant that delivers increased crush resistance in high closure stress and cyclic conditions. All versions feature vastly improved levels of conductivity, strength and durability. In addition to exceptional smoothness, KRYPTOSPHERE’s precision-engineered microstructure translates into a stronger, more durable, more spherical, more uniform proppant. These features work together to create additional space in the fracture for hydrocarbon flow as well as a more uniform flow path.

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