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General technical review

Name of the document

KORVET JSC

KSAP

Doc. Rev / DatedPage

OK/15082 / 06.02.091

ESP cable sealing system

sealaroundpenetrator (KSAP)

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General technical review

Name of the document

KORVET JSC

KSAP

Doc. Rev / DatedPage

OK/15082 / 06.02.092

I. ESP cable sealing description

Korvet K cable sealing system has number of advantages over conventionalproductssuchaspenetrators:

SAP

Simple design:

Safety:Easyinstallation:No cable cuttingrequired:

Cost effectiveness:

No electricalshorting:Workover:

KSAP does not require specially trained personnel for installationand can betestedupto 5000psi WP.

all versions ha quick pressure testports onlyone spanner isneeded

during installationin tubinghanger or tubinghead, thecable is left unharmed andtherefore nosplicingorepoxyworkisrequired.

significant procurement cost advantage over wellhead

penetrators.attubingheadbecauseofnoexcessiveconnections.

during workover operations only the rubber sleeves needs to bereplaced.

ve

In Russia & Caspian Sea region Korvet has more than 20 thousand of such installations.Systemisapproved byShellspecialists.

Working principle :

The gland screw (1) pressurizes the rubber sleeve (4) and insulated cable (3). The ballbearing (2)assures lowfrictionoperation.

Onnextpagesyou could see typical examplesofapplicationswithK system.SAP

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General technical review

Name of the document

KORVET JSC

KSAP

Doc. Rev / DatedPage

OK/15082 / 06.02.093

II. Wellhead design: eccentric tubing hanger

Typical application for safe BOP removing. Replacing penetrator with K allows tosave rig time, money at completion/workover and to avoid of electric shortcuts atproducing and it removes with the usual issues of cable shorting at the producingwellhead.

SAP

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General technical review

Name of the document

KORVET JSC

KSAP

Doc. Rev / DatedPage

OK/15082 / 06.02.094

III. Wellhead design: suspending tubing head adapter

Mainlyused in FormerSovietUnioncountrieswith wellheadsforESPproduction: whereBOP removal allowed without double barrier rule. K confirms the seal quicklyandeffectivelyatcompletion and aspart ofplannedmaintenance scheme.

SAP

Quick pressuretest port

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General technical review

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KSAP

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OK/15082 / 06.02.095

IV. Wellhead design: conventional ESP wellhead

Typical application for well conversion from natural flow to ESP. Safe BOP removing.Quickpressure test ports forcable sealing on hanger. Replacing penetrator with K

will save rigtime, atcompletion andworkovers. It will enhance site safetyby preventingelectric joint and associated shorting at the wellhead. To be supplied together withconversional wellhead. This design is lower cost alternative to expencive conversionpenetrators.

SAP

Quick pressuretest port in a

tubing hanger

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General technical review

Name of the document

KORVET JSC

KSAP

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OK/15082 / 06.02.096

V. Pictures from oilfield

Energizing KSAP

Running tubing hangertrough BOP with KSAP

KSAP after pressuretest & removal of BOP

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