2PROK-SIAG-1 Stand-alone Two-Packer BHA for Selective Isolation with Hydraulic Disconnection from the Tubing (rated up to 5076 psi)
2PROK-SIAG-1 Stand-alone Two-Packer BHA for Selective Isolation with Hydraulic Disconnection from the Tubing (rated up to 5076 psi)
2PROK-SIAG-1 Stand-alone Two-Packer BHA for Selective Isolation with Hydraulic Disconnection from the Tubing (rated up to 5076 psi)
It is used during oil extraction with simultaneous insulation of upstream leakage interval or of perforation with water production in the production casing with nominal outsidenal diameter of pipes 140 (5 1/2")-178 mm (7").
BHA APPLICATION ALLOWS
- to isolate the leak interval by a well servicing team with minimum costs;
- to turn the well back on after a non-production or shutdown period due to a high water-cut of the product, to put the well back to the stock of producing wells;
- to develop the well drainage area with the maximum possible output of hydrocarbon reserves;
- to decrease the water-cut percentage of the well fluid down to 10-30% and enhance oil production by water-repellent treatment of the bottom-hole formation area (an engineering calculation is needed);
- to avoid expensive remedial works.
ADVANTAGES
- after BHA is set the tubing is disconnected hydraulically without tubing string rotation;
- reliable isolation of the production string leak interval;
- workover activities to replace downhole pumping equipment are carried out without plugging and decreasing the reservoir properties or the formation bottom-hole area;
- attachments: bypass valves create conditions for well production with maximum oil output, equalizing valve and safety assembly enhance the safety during workover and emergency activities.
ARTICLES ABOUT THE PRODUCT:
- Oil. Gas. Novation 12.2013 “Technologies and equipment to reduce expenses in squeeze cementing”.
SPECIFICATIONS
|
Code |
Casing string, mm |
Outside diameter, mm |
Passage bore diameter, mm (not less than) |
Tubing diameter between the packers, mm |
Plain-end tubing connection thread1, GOST 633-80 | ||
|
Nominal Diameter |
Wall thickness |
Top (coupling) |
Bottom (nipple) | ||||
|
2PROK-SIAG-1-118-50-350-Т1002-К3-Х3 |
140 |
6-8 |
118 |
50 |
89 |
89 |
73 |
|
146 |
9-11 | ||||||
|
2PROK-SIAG-1-122-50-350-Т1002-К3-Х3 |
146 |
6.5-9 |
122 | ||||
|
2PROK-SIAG-1-140-59-350-Т1002-К3-Х3 |
168 |
7.3-11 |
140 |
59 | |||
|
178 |
12.7-15 | ||||||
|
2PROK-SIAG-1-145-59-350-Т1002-К3-Х3 |
168 |
7.3-8 |
145 | ||||
|
178 |
8.1-12.7 | ||||||
1Top of BHA is a disconnection assembly coupling, bottom of BHA is a nipple of a bypass valve (upon request they can be supplied with subs for the applicable tubing standard sizes).
2Upon specific request the packers can be supplied for Т=150°С.
3Configuration number
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