1. DOWNHOLE EQUIPMENT FOR CONPLICATED CONDITIONS
"KRS Oil Gas" LLP
DOWNHOLE EQUIPMENT FOR CONPLICATED CONDITIONS

2. Packers
Column disconnectors
Packer device for defect wells
Two-packer layout to isolate a leak in the production string
Packer with cable gland of the defective wells
A device for determining a defect in the production strings
Packer plug drillable type ППР
Set of equipment with ESP and RWP application for paraffin wells
Set of equipment for cleaning a well from mechanical impurities
Set of equipment for ratchel injection
Set of equipment to regulate water injection
Integrated equipment for installation of special (ratchel) filter in sand-kicking wells
Circulating head
Perforator
Column reamer
Pressure test rig
Oil well pump for pumping highly carbonated liquids
Deviator
Well barrels cylindrical

3. 1. Packers Designed for separation of spaces in the operational
column of oil, gas, condensate and injection wells, various technological operations, the implementation of which requires the creation of excess pressure above below the packer. RF patents.
Packers are designed to work in all macro
areas.
Packers are manufactured with a diameter 94; 112; 118; 122; 136; 140; 145; 150; 155 mm for operational column with a diameter 114; 140; 146; 168; 178 mm.
The maximum pressure drop across the packer - 35 MPa
Working environment - oil, gas, gas condensate, produced water
Working environment temperature K

4. 2. Column disconnectors
Purpose: designed to disconnect by hydraulic influence and further connection by mechanical influence of casing strings with the equipment installed in the well, as well as to compensate the length of the TS under temperature and pressure changes. The disconnectors may additionally be used in the well operation for loading the hollow crimping tube or valve, depending on the conditions of the well. RF patent.
Columns disconnectors may be of different modifications: hydraulic, mechanical, riding through the central channel or annulus now designed, manufactured and implemented. column disconnectors are manufactured in diameter 94; 112; 118; 122; 136; 140; 145; 150; 155 mm diameter production casing 114; 140; 146; 168; 178 mm.
Maximum operating pressure - 35MPa
Working environment - oil, gas, gas condensate, produced water
The maximum working environment temperature ˚С

5. 3. Packer device for defect wells
Packer device is designed to insulate production tubing defect during the operation of wells RWP.
The device consists of a mechanical packer, hydraulic column disconnector, seal assembly and a tool for lifting.
The diagram shows the process sequence of device lowering.
After the lowering of the packer with disconnector the packer seating is performed (up-down) and the hydraulic pressure of atmospheres released by column disconnector.
Thus the packer with flowing well for TS sealing rests at the well. Then TS with seal assembly goes down in the well and sealed with a flowing well RK. When extraction is necessary TS with seal assembly, without tension, rises, and the packer with a flowing well remains at the well to reconnect. TS
Sitting nippel for RWP
Defect
flowing well
seal assembly
Packer
Packer

6. 4. Two-packer layout to isolate a leak in the production string
flowing well
Designed to isolate the defective area of casing string. RF patent. The arrangement is made for the production casing with diameter of 114; 140; 146; 168; 178 mm. Arrangement lowering at one time, packer seating-mechanically up-down, the release of packers - tightness up.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature K.
Upper packer
Emergency disconnector
Defect
Lower packer

7. 5. Packer with cable gland of the defective wells
Packers mechanical pulse with cable gland ПИМ-КВ-НШ designed for zonal isolation of leaking casing string holes an used while operation of electrically driven centrifugal pumps (ESP). RF patent.
The device consists of a special mechanical packer, connection unit with ESP and the sealing of the cable assembly.
The packers are made to the production casing with diameter of 140; 146; 168; 178 mm.
The maximum pressure drop across the packer - 35 MPa.
Packer seating- mechanical (up and down), the release of the packer - tightness up.
Working medium - oil, gas, gas condensate, produced water.
Working environment temperature K.
defect
cable
Packer with cable input
ESP

8. 6. A device for determining a defect in the production strings
The device is designed for interval pressuring of production casing in a single trip, without lifting the downhole equipment.
The device goes down and the interval pressure test is carried out, zone of leakage is determined.
The device is made for columns Ø114; 140; 146; 168; 178
Maximum differential pressure 21 MPa.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature K.
Planting device - mechanical.
Device Exemption - tightness up
Multilanding packer
Defect

9. 7. Packer plug drillable type ППР
Rope or TS
Designed for insulation, well conservation.
Packer Plug is installed in the borehole with a special tool.
Lowering of packer plug can be carried out with the help of a rope technique or casing strings. RF patent.
Seating of packer plug-hydraulic.
Release of packer plug drillable.
Made from easily drillable material of cast iron or duraluminum.
Packer Plug is made for the production casing with diameter of Ø114; 140; 146; 168; 178 mm.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature K. .
hydraulic jack for packer seating
Packer plug
Packer plug

10. 8. Set of equipment with ESP and RWP application for paraffin wells
Designed for use of RWP or ESP in paraffin wells.
During the lowering of tubing to a depth of 500 ÷ 800 m the packer is installed and above it the well chamber with a valve for the passage of the inhibitor against the wax.
While operation the inhibitor is pumped by the dosing pump through annulus.
Seating of special packer – manual, release - tightness up. The complex is made for the production casing with diameter Ø146; 168; 178 mm.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature - 393K.

11. 9. Set of equipment for cleaning a well from mechanical impurities
Designed for cleaning downhole by hydrostatic pulse method from deposit, representing a mixture of solids, such as pariah soil, sand, sludge, mechanical impurities, etc.
The arrangement is made for the production casing of 114; 140; 146; 168; 178 mm.
The device is lowered into the well and is driven by the existing wellhead lift.
The device operates in the well by calculated movement up and down.
In this case, first available in mill design, if necessary, grind the soil and during a certain length downward an impulse is created in a layer, the upper valve opens, the liquid from the static camera is held in the atmospheric chamber and portions of mechanical impurity is collected in a container over the back valve.
External diameter - 89; 95; 105 mm
Operating pressure - 35 MPa
Operating environment - mechanical impurities
Working environment temperature K
AZ Patent.

12. 10. Set of equipment for ratchel injection
Designed for ratchel injection into the area of sand-kicking wells. RF patent.
The device consists of lowering and leaving and parts.
The device is made for the production casing with diameter 146; 168; 178 mm.
Packer seating- manual, release by column disconnectors with hydraulic pressure 4,0 ÷ 5,0 MPa.
Extract - tightness up.
Working environment temperature K.

13. 11. Set of equipment to regulate water injection
Designed to pump water into two layers with a volume control.
In the arrangement for separation of the layer there are two packers and two gas lift mandrels with the actuator.
Lowering of the arrangement is carried out by one running.
The complex is made for the production casing with diameter.
RF patent.
Ø114; 140; 146; 168; 178 mm.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature K

14. 12. Integrated equipment for installation of special (ratchel) filter in sand-kicking wells
Set of equipment of ratchel filters is designed to insulate the sand in zones of layer in sand-kicking wells.

15. 13. Circulating head
Designed for sealing wells during flushing of bottom hole.
Depending on the use of pipes with diameter 48; 60; 73; 89; 114 mm tubing sealing elements available in a set change.
The maximum differential pressure - 35 MPa
Working environment - oil, gas, gas condensate, produced water
Working environment temperature K

16. 14. Perforator
Designed to open holes of Ø6 mm if there is a need in casing strings of Ø60; 73; 89 mm.
RF patent.
Perforator lowers into TS by cable technique or it’s just rushed.
After that by creation of pressure up to 5.0 Mpa the mechanism inside the TS is triggered and the hole to TS opens for liquid drain. внут
Manufactured for TS Ø60; 73; 89 mm.
Working environment - oil, gas, gas condensate, produced water. .

17. 15. Column reamer TS Reamer bit
Designed to equalize the diameter of narrowing inside the production string.
For device lowering and operation in the well no technological equipment is required. It is driven by a lifting unit at well mouth. AZ patent.
The device operates by up-down movement with the help of existing drill pipes at the well mouth.
The device design allows to get the corresponding diameter during lowering and during pulling it reduces the external diameter and it may freely leave the constriction zone.
The device is made for the production casing with diameter Ø114; 140; 146; 168; 178 mm.
Reamer bit
Driving washers
Narrowing in column

18. 16. Pressure test rig
ДЕФЕКТ
Designed for interval pressure test rig of casing strings without pulling of downhole equipment.
The device goes down on a rope and pressure test is performed with intervals, zone of leaking is determined.
RF patent.
The device is manufactured for pipes Ø60, 73, 89.
Maximum differential pressure 21 MPa.
Working environment - oil, gas, gas condensate, produced water.
Working environment temperature K.
Seating of device - inertial.
Device release - tightness up.

19. 17. Oil well pump for pumping highly carbonated liquids
Oil well pumps are designed to pump liquid from the well, containing non-associated gas at pump inlet up to 20%, mechanical impurities up to 1.3g/l at temperature 403 К (130°С).
The pump design does not differ much from inserted pumps type RHAM (HB1Б). It provides for additional special valve assembly located in the castle part of the pump.
The pump consists of cylinder 1, at the lower end of which the intake valve is screwed 2, and the upper end – joint 3. There is a movable plunger inside the cylinder 4, at both ends injection valves are threaded 5 and 6.
To attach the plunger to the rod string, the pump is provided with a rod 7, which is put on a special valve 8, located inside the joint3.
Pump goes down the rod string in the tubing and is fixed in the support 9.
The principle of operation of the pump for pumping highly carbonized liquids is as follows.
In the course of the plunger upward, under the influence of the dynamic pressure, the suction valve opens and fluid flows into the aerated pump cylinder.
In the course of the plunger down, under pressure of the liquid column, located in tubing, special valve closes.
Pressure valves are released from the pressure that facilitates their opening without boosting carbonated liquid and equalization of pressure before the liquid enters the top of the plunger.
In the subsequent course of the plunger up, the liquid between the plunger and a special valve prior to opening of the second one, displacing into TS re-contracting is displaced into the tubing. Simultaneously, the suction process is taking place.
Thus, the liquid is pumped twice cowering in the pump, the pump prevents blocking at high gas content.

20. 18. Deviator
Designed to open the windows in the production tubing by means of mill-reamers, and provide direction for drilling the second hole. AZ patent.
Deviator is mounted above a cement bridge provided at a certain depth of the wells.
Deviator is made for the production casing with diameter 146; 168; 178 mm.
Working environment temperature K.

21. 19. Well barrels cylindrical
Purpose: designed for installation of removable gaslift, circulation and inhibitor valves, flow-meters, chokes, plugs and subsurface-pressure gage with the help of cable technique while different technological procedures under oil, gas, gas condensate and recharge wells.
RF patent.