Gulf Oil and Gas accountACCOUNT

Oilmen Apply New Technologies of Well Workover

Source: www.gulfoilandgas.com 10/7/2011, Location: Asia

New technologies of well workover are successfully implemented in TATNEFT. New coiled tubing technologies have been introduced during the period of 2010 - 2011. 541 wells have been worked over with application of coiled tubing in OAO TATNEFT for 8 months of 2011. The number of operations is increasing each year with expansion of the technologies using coiled tubing units.

For example, the specialists of OAO TATNEFT jointly with OOO "Tatneft-RemServis" have successfully mastered and now apply the technology of survey and isolation of water influx in horizontal wells using inflatable packers. This technology includes a range of activities to identify aquifers and oil saturated areas in the open horizontal wellbores. In this case the inflatable packer temporarily isolates the oil saturated area for a period of technological operations.

For the purpose of improving the operations efficiency the Company has began using a so-called liquid-packer: polysaccharide gel with 48 hours destruction period instead of inflatable packers. The technology designed and improved by OAO TATNEFT's professionals allows identifying the water bearing intervals, shutting off oil saturated intervals with application of the liquid packer and performing targeted injection of the isolating material by intervals.

Delivery of the gel into a given interval is carried out by means of a flexible pipe. Setting the liquid packer unlike setting of the inflatable one does not require additional preparation of the wellbore and is more reliable in the production operations. Isolation works with application of the liquid packer allow treating a number of intervals in one cycle, since the gel does not prevent the change of the flexible pipe location.

Experimental pilot operations with application of the water isolation technology in horizontal wells using the liquid packer have been performed in 7 wells. After execution of the water isolation operations all the wells demonstrated water cut reduction and increase in oil production. On average the water cut of the wells has dropped from 99 to 59 percent, while the crude oil production increased from 0.2 to 3.5 tons per day.

Workover & Well Services News in Russia >>

Azerbaijan >>  4/16/2019 - Turan Drilling & Engineering Company LLC (A KCA Deutag and SOCAR AQS Company) has been awarded its first contract, which is with BP Exploration (Caspi...
Russia >>  4/10/2019 - Zvezda Shipbuilding Complex and Sovkomflot PJSC have signed a contract to make a pilot gas carrier vessel for the Arctic LNG 2 project. The contract s...

India >>  4/8/2019 - Axens’ Technologies for HPCL Rajasthan Refinery in HPCL Rajasthan Refinery Limited (HRRL), a joint venture company between HPCL and the Government of ...
China >>  4/5/2019 - Woodside has signed a Heads of Agreement (HOA) with ENN Group for the sale of 1.0 million tonnes of LNG per annum from Woodside’s portfolio for a per...

Russia >>  4/2/2019 - During the 19th International Conference & Exhibition on Liquefied Natural Gas (LNG2019) in Shanghai, Novatek Gas & Power Asia, a trading subsidiary o...
Indonesia >>  3/25/2019 - TechnipFMC has been awarded a large(1) integrated Engineering, Procurement, Construction, Transportation and Installation (iEPCI) contract by Eni for ...

Related Categories: Artificial Lift  Cementing, Stimulation  Directional Drilling  Drilling  Drilling Engineering & Equipment Systems  Enhanced Oil Recovery  General  Logging, Perforating, Testing  Offshore Drilling  Reservoir/Completion Consultants  Workover & Well Services  Workover Rigs/Services 

Related Articles: Artificial Lift  Cementing, Stimulation  Directional Drilling  Drilling  Drilling Engineering & Equipment Systems  Enhanced Oil Recovery  General  Logging, Perforating, Testing  Offshore Drilling  Reservoir/Completion Consultants  Workover & Well Services  Workover Rigs/Services 


Russia Oil & Gas 1 >>  2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 |

More News

Related Links

AZ BD BN CN GE HK ID IN IR JP KR KZ MM MN MY PG PH PK RU SG TH TJ TM TW UA UZ VN
Gulf Oil and Gas
Copyright © Universal Solutions All rights reserved. - Terms of Service - Privacy Policy.