External coverage · Offshore multilateral execution
Offshore TAML Level 5: From Engineering Preparation to Execution
An operator’s first TAML Level 5 well is a visible milestone. The less visible work is the engineering continuity behind it: equipment readiness, interfaces, testing, procedures and carrying the same technical understanding from preparation to the rig.
Black Rock Oilfield Technology LLC · Oman · October 2026
Oilfield Technology reported BROT’s specialist engineering and execution support for an operator’s first offshore TAML Level 5 multilateral well, with zero reported NPT for the individual operation.
Preparation
Equipment and interface review, inspections, SIT review and follow-up before offshore execution.
Execution continuity
Procedure and BHA review with specialist MLT support carried into the rig operation alongside the operator and completion providers.
Evidence boundary
The completion system was not supplied by BROT. Zero NPT refers to the individual operation and is not attributed solely to BROT.
Technical article · Brownfield well architecture
Brownfield Sidetracking and the Value of the Parent Bore
When a producing parent bore still has reservoir value, the sidetrack decision should compare the new target with the value surrendered by abandoning the existing production path.
By Denis Pasenkov · Black Rock Oilfield Technology LLC · October 2026
TAML-3 Lite is treated here as a brownfield development architecture: temporary protection of the parent bore during lateral construction, followed by restoration of the intended production path.
The full article separates the reservoir-development decision from the completion hardware, distinguishes temporary isolation from junction integrity, and keeps the reported field result separate from a later economic model.
Parent-bore value
Screen remaining reserves and drainage before deciding to sacrifice the existing producer.
Public evidence
Reported field performance and separate modeled economics are presented with explicit evidence boundaries.
Execution boundary
Detailed BHA configuration, tool geometry, operating parameters and contingency logic remain project-specific.
Technical article · TAML 1 · Trilateral open-hole architecture
When One Horizontal Is Not Enough: TAML 1 Trilateral Open-Hole Architecture
Three producing paths from one motherbore — and the reservoir reason that must exist before a third bore is added.
Denis Pasenkov · Black Rock Oilfield Technology LLC · Oman · 15 October 2026
The full technical article separates two evidence streams: a documented three-wellbore open-hole construction reference and independent Sibneftegaz / Tyumen Petroleum Research Center operator evidence from a heterogeneous gas-condensate development.
Trilateral architecture
Parent bore plus two successive laterals with lined / screened branches, open-hole anchors and production whipstocks.
Independent operator evidence
Separate bilateral TAML 1 case: 1,911 vs 430 thousand m³/day startup comparison, with pressure and permeability caveats kept visible.
Public boundary
Reservoir logic and evidence are public; detailed BHA, dimensions, orientation values, milling parameters and contingencies remain project-specific.
