P-YAMOG-KB Mechanical Axial-set Packer with an Integrated Hydraulic Anchor, Balancing Valve and Bypass (rated operating pressure up to 10 000 psi)

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It is designed for sealed separation of casing string intervals and protection of the casing against the dynamic effect of various well operations.

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DESCRIPTION APPLICATION

Recommended for multiple massive hydraulic fracturing in one round-trip in wells with the risk of complicated release after HF;
for pressure testing and leak finding in the casing string;
for pressure treatment of formations with chemical agents;
for remedial works and other well operations which require generating high pressure difference across the packer.

ADVANTAGES

enlarged passage bore of 50 mm for casing strings with the nominal diameter of 140-146 mm;
reliable sealing of the production string in the course of operations which require generating high pressure difference across the packer;
easy packer releasing without additional tensile load;
long-term performance efficiency at high pressure differences up to 70 MPa and temperatures up to 150 °С;
multiple use within one round-trip;
high repairability.

DESIGN FEATURES

packer design comprises a bypass which is open when the tool runs in and shuts off when the tool is set and a balancing valve;
packer is set into the well mechanically by axial movements of the string (tubing rotation is not required) and brought into transit position by tensioning of the string;
to equalize the pressure above and below the packer it’s sufficient to lift the tubing string at not less than 0.5 m;
when the string is moved upwards the packer gets automatically released and goes back to its transit position;
enlarged passage bore enables to pump a large volume of proppant during one trip-in operation;
an integrated hydraulic anchor protected from contact with process fluid during pumping.

SPECIFICATIONS

Type	Design Documentation Code	Casing string, mm		Outside diameter, mm	Passage bore diameter, mm	Length, mm (not more than)	Weight, kg (not more than)	Plain-end tubing connection thread as per GOST 633-80
		Nominal Diameter	Wall thickness					Top (coupling)	Bottom (nipple)
P-YAMOG-KB-118-50-700-Т100¹-К3	АHА 2.839.351	140	6.2 to 7.7	120.5	50	2150	88	73
		146	9.5 to 10.7
P-YAMOG-KB-122-50-700-Т100¹-К3	АHА 2.839.351-01	146	6.5 to 9.5	122			92

¹ when placing an order for equipment for Т=150°С, please indicate Т150.

Packer setting load is 60 to 120 kN.
Upon special request packer setting device can be equipped with two rubber sealing elements.
Upon Customer’s request a packer can be manufactured with other sizes.

The packer is available in the following configurations: